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Three-clamping lock

A lock and lock housing technology, applied in the direction of connecting components, mechanical equipment, friction clamping detachable fasteners, etc., can solve the problems of low connection strength, manufacturing structure, complicated process, and loose lock heads, etc., to achieve Guarantee strength and fastness, reduce production cost and improve work efficiency

Inactive Publication Date: 2014-01-01
LINGTONG EXHIBITION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above-mentioned locks: 1. The lock shell is made of two riveted pieces. After the manual torque is increased, the lock head will be easily scattered, otherwise the lock will be damaged and there will be safety hazards in the construction and connection.
2. The manufacturing structure and process are quite complicated. For the positioning of the eccentric wheel, two holes are used for axial center positioning, and holes must be drilled on the upper and lower side plates of the lock housing. The lower end of the eccentric wheel must form a very long protrusion, which is costly; 3. , At the same time, due to the limitation of size, self-locking angle, boss, etc., it is easy to produce self-locking phenomenon, which affects the fast loading and unloading of locks
4. The combination of reed and eccentric wheel has defects such as poor ability to adjust the gap and low connection strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: see attached figure 1 with attached figure 2 , the present invention proposes a three-clip lock, which is used to build a support connection in a trade fair or store structure assembly system, including a lock case 1, a three-clip reed 3, an eccentric wheel 2 and a rear cover, and the three-clip reed The sheet 3 is arranged in the lock case 1, and a hole matched with the eccentric wheel 2 is arranged on the three-catch reed sheet 3, and the three-clip reed sheet 3 moves forward and backward by the rotation of the eccentric wheel 2 arranged in the hole, and the The lock case 1 is formed by stamping a seamless steel pipe with a rectangular cross-section, and the rear cover is formed by bending the side plates 6 and the upper panel 12 at the rear end of the lock case; specifically, the side plates 6 at the rear end of the lock case are respectively The left and right support plates 7 that support the three clip reeds are formed by two inward bendings of 18...

Embodiment 2

[0026] Embodiment 2: see attached Figure 4 with attached Figure 5 , the three-clip lock involved in this embodiment includes a lock case 1, a three-catch reed 3, an eccentric wheel 2 and a rear cover 5. The lock case 1 is stamped from a seamless steel pipe with a rectangular cross section, and the rear cover The upper part of the inner side is provided with an upper support 14, and the lower part is provided with a lower support 13. The upper edge of the upper support 14 and the lower edge of the lower support 13 are closely matched with the inner wall of the lock housing to realize the tight connection between the back cover 5 and the lock housing. A gap 16 for the front and rear movement of the three-clip reeds is formed between them for the support after the three-clip reeds 3 enter; 3. The protruding direction is positive and inclined downward, and the rear end surface of the three clip reeds is an inclined surface 31 and matches with the front inclined surface 15 of th...

Embodiment 3

[0027] Embodiment 3: see attached Image 6 with attached Figure 7 , the three-clip lock involved in this embodiment, part of the structure has been improved on the basis of Embodiment 3: the rear cover is directly formed by one-time bending of the lower panel 17, and the lower support 18 is an independent component, which is fixed by screws 181 on the inside of the back cover; if Figure 8 As shown: the three-catch reed 3 involved in this embodiment is in the middle of its three lock tongues, and the middle lock tongue 9 and the two side lock tongues 8 are respectively bent to form an upward protrusion 91 and a downward protrusion 81; corresponding At the rearward position of the middle lock tongue protrusion, an inclined bearing surface 191 is formed by stamping on the upper panel of the lock housing; There are three inclined bearing surfaces 19, and the front ends of the three inclined bearing surfaces respectively act on the raised upper inclined surfaces of the three de...

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Abstract

The invention relates to a three-clamping lock comprising a lock case, a three-clamping reed and an eccentric gear. The three-clamping lock is disposed in the lock case, a hole matched with the eccentric gear is formed in the three-clamping reed which moves frontwards and backwards through rotation of the eccentric gear in the hole, the lock shell is formed by stamping a seamless steel pip with a rectangular section, a rear cap is arranged at the rear end of the lock case, and a lower support used for supporting the rear end of the three-clamping reed is arranged on the inner side of the rear cover. By the three-clamping lock, manual torque is prevented from increasing to cause loosening of a lock head, and capability of lateral stopping is greatly improved; meanwhile, manufacturing cost is lowered greatly, and the reed and the eccentric gear are matched more stably and effectively.

Description

technical field [0001] The invention relates to a connecting piece used in building structures, especially in assembly systems of trade fairs or store structures, in particular a lock used to connect and support other supporting profiles or assembly parts in the assembly system. Background technique [0002] With the development of society, a large number of profiles are used in the fields of corporate publicity and exhibition supplies. Because of their light weight and convenient disassembly, they are more and more popular among people. The locks currently used in building structures, especially in trade fairs or store structure assembly systems generally include lock housings, reeds and eccentric wheels. The lock housing is made of riveted upper and lower profiles, and the front part is equipped with reeds. The guide boss has an eccentric wheel and a reed boss at the rear, and the reed is provided with a mounting hole that matches the eccentric wheel. In order to ensure th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B2/00
Inventor 黄彪邓荣龙刘联平
Owner LINGTONG EXHIBITION SYST
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