Simple self-locking integrated lock catch mechanism

Abstract

A simple self-locking integrated lock catch mechanism comprises a lock catch support, a lock catch pin shaft and a lock catch vertical plate, the lock catch support is horizontally arranged in the front-back direction, a clamping groove with the upper side, the lower side and the rear side open is formed in the middle of the lock catch support in the front-back direction, the lock catch vertical plate is correspondingly clamped into the clamping groove, a lifting long hole is formed in the middle of the lock catch vertical plate in the vertical direction, and the lifting long hole is communicated with the lock catch pin shaft. The lock catch pin shaft is arranged in the middle in the clamping groove in the left-right direction and penetrates through the lifting long hole, the two ends of the lock catch pin shaft are fixedly connected to the left side wall and the right side wall of the clamping groove respectively, the upper end of the lifting long hole is pressed on the lock catch pin shaft, the upper side portion of the lock catch vertical plate extends out of the upper side of the clamping groove, and the lower side portion of the lock catch vertical plate extends out of the lower side of the clamping groove. The front-back size of the lock catch vertical plate is smaller than the up-down size of the clamping groove, and the distance between the lock catch pin shaft and the front end of the clamping groove is larger than the distance between the lower end of the lifting long hole and the lower side edge of the lock catch vertical plate. The self-locking device can achieve the self-locking function, and is simple in structure, convenient to operate, safe, reliable and not prone to being lost.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, and specifically, to a simple self-locking integrated lock mechanism. Background Art

[0002] The domestic logistics industry has developed rapidly. The skeleton container transport semi-trailer is one of the main transportation tools, usually pulling some containers or tanks. Customers often need to step on the pedal at the rear for operation. As shown in Figure 1 and Figure 2 , when the pedal is not in use, it needs to be folded up, so that the pedal baffle 1 is stuck on the lock nose 2 and locked with the lock 3. This requires locking with a traditional lock separately, or locking with other screws passing through the lock nose 2. The operation is relatively troublesome and the lock is easy to lose. If the lock 3 is damaged and falls off during transportation, the pedal will turn over, which is likely to cause safety accidents.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide a simple self-locking integrated lock mechanism. The utility model can realize the self-locking function, has a simple structure, convenient operation, is safe and reliable, and is not easy to lose.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a simple self-locking integrated lock mechanism, including a lock support, a lock pin shaft, and a lock vertical plate. The lock support is horizontally arranged in the front-back direction. A card slot with openings on the upper side, lower side, and rear side is provided in the middle of the lock support in the front-back direction. The plane where the lock vertical plate is located is vertically arranged in the front-back direction. The lock vertical plate is correspondingly inserted into the card slot. A lifting long hole is provided in the middle of the lock vertical plate in the vertical direction. The lower end of the lifting long hole extends downward to the lower side of the lock vertical plate and is close to the lower edge. The upper end of the lifting long hole extends upward to the center of the lock vertical plate. The lock pin shaft is horizontally placed in the middle of the card slot in the left-right direction and passes through the lifting long hole. The two ends of the lock pin shaft are respectively fixedly connected to the left and right side walls of the card slot. The upper end of the lifting long hole presses on the lock pin shaft. The upper side of the lock vertical plate extends out of the upper side of the card slot, and the lower side of the lock vertical plate extends out of the lower side of the card slot. The front-back dimension of the lock vertical plate is smaller than the upper-lower dimension of the card slot. The distance between the lock pin shaft and the front end of the card slot is greater than the distance between the lower end of the lifting long hole and the lower side edge of the lock vertical plate.

[0006] Based on the above, the lock support is a circular tube structure. The upper and lower side walls of the lock support are axially provided with the above-mentioned card slot. The lock pin shaft is placed inside the lock support and intersects with the card slot at a right angle. The two ends of the lock pin shaft are respectively welded to the left and right side walls of the lock support.

[0007] Based on the above, the elongated hole is a runway-shaped elongated hole.

[0008] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model replaces the traditional lock nose with a lock catch support. When closing the pedal, the lock catch vertical plate is lifted and rotated backward by 90° to the horizontal, so that the hole on the corresponding ear on the pedal directly passes through the lock catch vertical plate and is sleeved on the front end of the lock catch support. After the pedal is completely closed, the lock catch vertical plate is rotated upward by 90° and then vertically dropped to reset. The lock catch vertical plate can just block the ear, and the locking can be successfully achieved, realizing the self-locking function. If you want to open the pedal, just lift the lock catch vertical plate and rotate it backward by 90° to the horizontal.

[0009] The utility model can realize the self-locking function, has a simple structure, is convenient to operate, is safe and reliable, and is not easy to be lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of a conventional lock catch mechanism for locking a pedal Figure 1 .

[0011] Figure 2 is a schematic diagram of a conventional lock catch mechanism for locking a pedal Figure 2 .

[0012] Figure 3 is a schematic diagram of the state where the lock catch mechanism of the utility model locks the pedal Figure 1 .

[0013] Figure 4 is a schematic diagram of the state where the lock catch mechanism of the utility model locks the pedal Figure 2 .

[0014] Figure 5 is a schematic diagram of the position state of the lock catch vertical plate when the pedal of the utility model needs to be opened.

[0015] Figure 6 is a rear view of the lock catch mechanism of the utility model.

[0016] Figure 7 is a top view of the lock catch mechanism of the utility model.

[0017] In the figure: 1. Pedal baffle; 2. Lock nose; 3. Lock; 4. Lock catch support; 5. Lock catch pin; 6. Lock catch vertical plate; 7. Card slot; 8. Elongated hole; 9. Ear; 10. Through hole. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following further describes the technical solution of the utility model in detail through specific embodiments.

[0019] Such as Figures 3 - 7As shown in the figure, a simple self-locking integrated latch mechanism includes a latch support 4, a latch pin 5, and a latch vertical plate 6. The latch support 4 is horizontally arranged in the front-rear direction. A card slot 7 with openings on the upper side, lower side, and rear side is formed in the middle of the latch support 4 in the front-rear direction. The plane of the latch vertical plate 6 is vertically arranged in the front-rear direction. The latch vertical plate 6 is correspondingly inserted into the card slot 7. A runway-shaped elongated hole 8 is formed in the middle of the latch vertical plate 6 in the vertical direction. The lower end of the elongated hole 8 extends downward to the lower side part of the latch vertical plate 6 and is close to the lower edge. The upper end of the elongated hole 8 extends upward to the center of the latch vertical plate 6. The latch pin 5 is placed in the middle of the card slot 7 in the left-right direction and passes through the elongated hole 8. Both ends of the latch pin 5 are fixedly connected to the left and right side walls of the card slot 7 respectively. The upper end of the elongated hole 8 presses on the latch pin 5. The upper side part of the latch vertical plate 6 extends out of the upper side of the card slot 7, and the lower side part of the latch vertical plate 6 extends out of the lower side of the card slot 7. The front-rear dimension of the latch vertical plate 6 is smaller than the upper-lower dimension of the card slot 7. The distance between the latch pin 5 and the front end of the card slot 7 is greater than the distance between the lower end of the elongated hole 8 and the lower side edge of the latch vertical plate 6.

[0020] In this embodiment, the latch support 4 is a circular tube structure. The upper and lower side walls of the latch support 4 are axially provided with the card slot 7 described above. The latch pin 5 is placed inside the latch support 4 and is cross-shaped with the card slot 7. Both ends of the latch pin 5 are welded to the left and right side walls of the latch support 4 respectively.

[0021] When this embodiment is specifically used, the latch vertical plate 6 is inserted into the card slot 7 pre-cut in the latch support 4, and then the latch pin 5 is passed through the through holes 10 pre-drilled in the left and right side walls of the latch support 4. The latch pin 5 just passes through the elongated hole 8 on the latch vertical plate 6. Both ends of the latch pin 5 are placed in the through holes 10 on the left and right side walls of the latch support 4 respectively. Finally, both ends of the latch pin 5 are welded together with the latch support 4 and the welded part of the latch pin 5 and the latch support 4 is ground smooth, then the overall production of the latch mechanism can be completed. Then the front end of the latch support 4 is welded to the switch positions on both sides of the tail pedal of the semi-trailer, so that the latch support 4 replaces the traditional lock nose. Ear plates 9 are welded on both sides of the pedal respectively. Round holes for matching and clamping with the latch support 4 are formed in the ear plates 9. When closing the pedal, the latch vertical plate 6 is lifted and rotated backward by 90° to the horizontal, and then the round hole on the ear plate 9 directly passes through the latch vertical plate 6 and is sleeved on the front end part of the latch support 4. After the pedal is completely closed, the latch vertical plate 6 is rotated upward by 90° and then vertically dropped to reset. The latch vertical plate 6 can just block the ear plate 9, and the locking can be successfully completed, realizing the self-locking function. If you want to open the pedal, just lift the latch vertical plate 6 and rotate it backward by 90° to the horizontal.

[0022] The latch mechanism of this embodiment can not only be used for locking and unlocking the pedal, but also can be applied to the box doors of other devices that require locks.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A simple self-locking integrated locking mechanism, characterized in that: The invention comprises a lock support, a lock pin and a lock vertical plate. The lock support is horizontally arranged along the front-to-back direction. A card slot with open upper, lower and rear sides is provided in the middle of the lock support along the front-to-back direction. The plane where the lock vertical plate is located is vertically arranged along the front-to-back direction. The lock vertical plate is correspondingly inserted into the card slot. A lifting long hole is vertically provided in the middle of the lock vertical plate. The lower end of the lifting long hole extends downward to the lower side of the lock vertical plate and close to the lower side edge. The upper end of the lifting long hole extends upward to the middle of the lock vertical plate. The center of the card slot is located at the center, and the lock pin is placed in the middle of the card slot along the left and right directions and passes through the lifting hole. The two ends of the lock pin are respectively fixedly connected to the left and right side walls of the card slot, and the upper end of the lifting hole is pressed on the lock pin. The upper side of the lock vertical plate extends out of the upper side of the card slot, and the lower side of the lock vertical plate extends out of the lower side of the card slot. The front and rear dimensions of the lock vertical plate are smaller than the upper and lower dimensions of the card slot, and the distance between the lock pin and the front end of the card slot is greater than the distance between the lower end of the lifting hole and the lower side of the lock vertical plate.

2. The simple self-locking integrated locking mechanism according to claim 1, characterized in that: The lock support is a circular tube structure, and the upper and lower tube walls of the lock support are axially provided with the aforementioned slots. The lock pin is placed in the lock support and crosses the slots. The two ends of the lock pin are respectively welded to the left and right tube walls of the lock support.

3. The simple self-locking integrated locking mechanism according to claim 1 is characterized in that: The lifting long hole is a racetrack-shaped long hole.

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