JB/T 7147-1993 Types and basic parameters of door locks for construction machinery

This standard specifies the types and basic parameters of engineering machinery door locks. This standard is mainly applicable to engineering machinery driver's cab door locks. JB/T 7147-1993 Engineering machinery door lock types and basic parameters JB/T7147-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7147-93
Construction Machinery
Door Lock Types and Basic Parameters
Published on November 21, 1993
Ministry of Machinery Industry of the People's Republic of China
Implemented on March 1, 1994
Machinery Industry Standard of the People's Republic of China
Construction Machinery
Door Lock Types and Basic Parameters
Subject Content and Scope of Application
This standard specifies the types and basic parameters of door locks for construction machinery. This standard is mainly applicable to the door locks of the driver's cab of construction machinery. 2 Product type and basic parameters
2.1 Product type
JB/T7147-93
The types of engineering machinery door locks are classified according to the structural type of the lock tongue. The structural type and product characteristic code are shown in Table 1. Table 1
Lock fragrance structural type
Fragrant yellow type
Yellow type
2.2 Basic parameters and dimensions of products
Specifications of engineering machinery door locks Applicable door thickness dimensions are shown in Table 2. 2. 2. 1
Reed door lock
Yellow door lock
Applicable door thickness
Applicable door thickness
Product characteristic code
80~100
80~100
Note: The applicable door thickness in the table refers to the lock body installed in the sandwich of the inner and outer door panels of the door. If the lock body is installed outside the inner door panel, the applicable door thickness is not limited
Handle and lock body connecting rod, hole, break See Table 3 for surface dimensions and fit. 2.2.2bzxz.net
Dimension name
Approved by the Ministry of Machinery Industry on November 21, 1993
Surface dimensions
#10+12.14,#16
Tolerance fit
C10 or D10
C10 or D10
Implemented on March 1, 1994
2.3 Product model marking
JB/T 714793
2.3.1 The product model of engineering machinery door locks shall be shortened according to the following principles: GJM
口口00口
Specification series (expressed in Arabic numerals)-Design serial number (expressed in Arabic numerals)
Enterprise code (expressed in Chinese phonetic letters)-Product feature code (expressed in uppercase Chinese phonetic letters)-Door lock
Engineering machinery
2.3.2 Marking example
Applicable to the first design of a tongue spring type engineering machinery door lock for a factory with a door thickness of 40 to 49 mm, marked as GJMS1-40
Additional instructions:
This standard was proposed and managed by the Tianjin Engineering Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Tianjin Engineering Machinery Research Institute and Xuzhou Lock Factory. The main drafters of this standard are Liu Xiqi, Chen Junhua and Wang Zhaoling. 2
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