Framework vehicle lock beam structure

Abstract

The utility model belongs to the technical field of framework vehicles, and particularly relates to a framework vehicle lock beam structure which comprises lock seats respectively installed at two ends of a beam body, each lock seat is sequentially provided with a lock head, a threaded rod and an installation plate from top to bottom, and the installation plates are welded inside the lock seats. A mounting plate is arranged on the lock seat, a mounting space for lifting the threaded rod is formed in the mounting plate in a penetrating manner, a limiting pin capable of being inserted into a thread of the threaded rod is movably mounted on the mounting plate, and a shifting block connected with the limiting pin is further mounted below the lock seat. The movable limiting pin is inserted into the threaded rod, so that the threaded rod is meshed with the mounting plate, when the limiting pin is separated from the threaded rod, limitation of the limiting pin to the threaded rod is relieved, lifting adjustment can be conducted without rotation of the threaded rod, and therefore the lock head can be conveniently stretched out and unfolded or retracted and stored.

Description

Technical Field

[0001] The utility model belongs to the technical field of skeleton vehicles, and in particular relates to a crossbeam structure of a lock for a skeleton vehicle. Background Art

[0002] The skeleton car is a frame structure that includes the front and rear axles of the car, commonly known as the crossbeam, which is the base of the car. It is generally composed of two longitudinal beams and several cross beams, and is supported on the wheels through the suspension device-front axle-rear axle.

[0003] In the Chinese utility model patent with patent number CN202020170878.0, entitled "Skeleton vehicle lifting lock structure and beam structure with the lifting lock structure", the total length of the lock can be shortened by lifting the lifting pallet in the lifting channel. Specifically, when storage is required, the lifting pallet is lowered to the lowest position, so that the lock head can be completely stored in the lock head storage groove. When the container needs to be locked, the lifting pallet is raised to the highest position, so that the lock head can be extended to a longer distance. The total stroke is equivalent to the stroke of the lifting pallet plus the length of the connecting rod itself. Finally, the locking nut can be turned to achieve locking, thereby realizing the locking function and the storage function under the premise of a small total height of the rotary lock seat. However, the existing connecting rod does not have the function of rapid retraction. The lock head is realized by rotating the thread on the connecting rod. When the lock head is retracted into the storage groove or extended from the storage groove to the highest position, the connecting rod needs to be rotated multiple times. The rotation of the connecting rod is inefficient and time-consuming, which is not conducive to the rapid adjustment of the lock head, greatly reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a crossbeam structure of a skeleton bicycle lock, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crossbeam structure of a skeleton bicycle lock, comprising: lock seats respectively installed at both ends of the crossbeam body, a lock head, a threaded rod and a mounting plate are installed on the lock seat in sequence from top to bottom, the mounting plate is welded to the inside of the lock seat, an installation space for lifting and lowering the threaded rod is formed through the mounting plate, and a limit pin that can be movably installed on the mounting plate and can be inserted into the thread of the threaded rod.

[0006] Preferably, a shift block connected to the limit pin is also installed below the lock seat, and the limit pin and the shift block are an inverted L-shaped structure.

[0007] Preferably, a mounting chamber is provided at the bottom of the mounting plate, a spring is installed in the mounting chamber, and one end of the spring abuts against a side of the shift block away from the limit pin.

[0008] Preferably, a first telescopic rod and a second telescopic rod for telescopically guiding the spring are installed between the installation bin and the shifting block, the first telescopic rod is telescopically connected to the second telescopic rod, and the spring is sleeved on the first telescopic rod and the second telescopic rod.

[0009] Preferably, a through hole is formed on the mounting plate from top to bottom, the mounting space is formed in the through hole, and one end of the limiting pin extends through the through hole.

[0010] Preferably, a lock groove is provided on the side surface of one end of the lock head, and a rotation groove is provided on the bottom of the lock head on the side away from the lock groove, and the lock head is rotatably installed on the top of the threaded rod through the rotation groove.

[0011] Preferably, a rotating portion is welded to the bottom end of the threaded rod, and a plurality of anti-slip grooves are provided at equal distances on the outer side of the rotating portion.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) The utility model adds a limit pin, which is movable and plugged into the threaded rod, so that the threaded rod is engaged with the mounting plate. When the limit pin is disengaged from the threaded rod, the limit pin's restriction on the threaded rod is released, so that the threaded rod can be raised and lowered without being rotated, thereby facilitating the extension, expansion or retraction of the lock head.

[0014] (2) The utility model adds a shifting block, which can be used to adjust the position of the limit pin.

[0015] (3) The utility model adds a spring, and the elastic force of the spring allows the limit pin to always be elastically in contact with the threaded rod, thereby preventing the limit pin from being separated from the threaded rod in the absence of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a bottom view of the mounting plate, spring, shift block, limit pin and through hole of the utility model;

[0019] In the figure: 1. beam body; 2. lock seat; 3. threaded rod; 4. rotating part; 5. shift block; 6. lock slot; 7. lock head; 8. mounting plate; 9. through hole; 10. first telescopic rod; 11. second telescopic rod; 12. spring; 13. mounting compartment; 14. limit pin; 15. rotating slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] refer to Figure 1-2 As shown, the utility model provides a crossbeam structure of a skeleton bicycle lock, comprising: lock seats 2 respectively installed at both ends of the crossbeam body 1, a lock head 7, a threaded rod 3 and a mounting plate 8 are installed on the lock seat 2 in sequence from top to bottom, the mounting plate 8 is welded inside the lock seat 2, an installation space for lifting the threaded rod 3 is formed through the mounting plate 8, and a limit pin 14 that can be inserted into the thread of the threaded rod 3 is movably installed on the mounting plate 8.

[0022] Combination Figure 2-3 As shown, a through hole 9 is formed on the mounting plate 8 from top to bottom, a mounting space is formed in the through hole 9 , and one end of the limiting pin 14 extends through the through hole 9 .

[0023] As described above, when using the beam body 1, lock seat 2, lock head 7, threaded rod 3, mounting plate 8 and limit pin 14 provided by the utility model, the lock seat 2 provides an installation position for the lock head 7 on the beam body 1, and the threaded rod 3 can be longitudinally installed in the lock seat 2 through the mounting plate 8. When one end of the limit pin 14 is inserted into the threaded rod 3, the threaded rod 3 is meshed and installed on the mounting plate 8 through the limit pin 14. At this time, rotating the threaded rod 3 can drive the lock head 7 to slowly rise and fall, and fine-tune the gap between the lock head 7 and the box body. When the limit pin 14 is disengaged from the threaded rod 3, the threaded rod 3 can be directly lifted and lowered on the mounting plate 8, which is convenient for quickly bringing the lock head 7 into the lock seat 2 or lifting the lock head 7 out of the lock seat 2.

[0024] Further, in order to adjust the position of the limit pin 14, refer to Figure 1-3 As shown, a shift block 5 connected to the limit pin 14 is also installed below the lock seat 2, and the limit pin 14 and the shift block 5 are an inverted L-shaped structure. By shifting the shift block 5, the limit pin 14 can be driven away from the threaded rod 3, which is convenient for the threaded rod 3 to be directly lifted.

[0025] Further, in order to facilitate the lock 7 to be separated from the box, refer to Figure 1-2 As shown, a lock slot 6 is provided on the side of one end of the lock head 7, and a rotation slot 15 is provided on the bottom of the lock head 7 away from the lock slot 6. The lock head 7 is rotatably mounted on the top of the threaded rod 3 through the rotation slot 15. When the lock head 7 and the box body are not subjected to force, the lock head 7 rotates on the top of the threaded rod 3 through the rotation slot 15, so that the lock slot 6 on the lock head 7 is separated from the box body, so that the lock head 7 is convenient to retract into the lock seat 2.

[0026] Further, in order to rotate the threaded rod 3, refer to Figure 1-2 As shown, a rotating portion 4 is welded to the bottom end of the threaded rod 3, and a plurality of anti-slip grooves are arranged at equal distances on the outer side of the rotating portion 4. The threaded rod 3 can be rotated by the rotating portion 4.

[0027] In the present utility model, combined with Figure 2-3 As shown, a mounting chamber 13 is provided at the bottom of the mounting plate 8 of the present embodiment, a spring 12 is installed in the mounting chamber 13 , and one end of the spring 12 abuts against a side of the shift block 5 away from the limit pin 14 .

[0028] As mentioned above, when using the spring 12 provided by the utility model, the spring 12 is installed in the mounting plate 8 through the mounting chamber 13. The elastic force of the spring 12 facilitates the pushing of the shift block 5 toward the side of the limit pin 14, thereby inserting the limit pin 14 into the threaded rod 3. When the limit pin 14 is inserted into the threaded rod 3, the threaded rod 3 cannot be directly raised or lowered, but can only be rotated and raised or lowered.

[0029] Further, in order to guide the elastic force direction of the spring 12, refer to Figure 2 As shown, a first telescopic rod 10 and a second telescopic rod 11 are installed between the installation bin 13 and the shift block 5 to guide the spring 12 to be telescopically extended. The first telescopic rod 10 and the second telescopic rod 11 are telescopically connected, and the spring 12 is sleeved on the first telescopic rod 10 and the second telescopic rod 11. The first telescopic rod 10 and the second telescopic rod 11 are telescopically installed between the shift block 5 and the installation bin 13. The spring 12 can be guided to be telescopically extended by the telescopic first telescopic rod 10 and the second telescopic rod 11, so that the elastic force generated by the compression of the spring 12 directly acts on the shift block 5, thereby facilitating the limit pin 14 to be driven by the shift block 5 to be inserted into the threaded rod 3.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crossbeam structure of a skeleton vehicle lock, characterized in that: include: A lock seat (2) is respectively mounted on both ends of the crossbeam body (1); a lock head (7), a threaded rod (3) and a mounting plate (8) are mounted on the lock seat (2) in order from top to bottom; the mounting plate (8) is welded inside the lock seat (2); a mounting space for lifting the threaded rod (3) is formed through the mounting plate (8); a limit pin (14) which can be inserted into the thread of the threaded rod (3) is movably mounted on the mounting plate (8).

2. A crossbeam structure of a skeleton vehicle lock according to claim 1, characterized in that: A shift block (5) connected to a limit pin (14) is also installed below the lock seat (2); the limit pin (14) and the shift block (5) are in an inverted L-shaped structure.

3. A crossbeam structure of a skeleton vehicle lock according to claim 2, characterized in that: A mounting chamber (13) is provided at the bottom of the mounting plate (8), a spring (12) is installed in the mounting chamber (13), and one end of the spring (12) abuts against a side of the shifting block (5) away from the limiting pin (14).

4. A crossbeam structure of a skeleton vehicle lock according to claim 3, characterized in that: A first telescopic rod (10) and a second telescopic rod (11) for guiding the spring (12) to extend and retract are also installed between the installation bin (13) and the shifting block (5); the first telescopic rod (10) and the second telescopic rod (11) are telescopically connected; and the spring (12) is sleeved on the first telescopic rod (10) and the second telescopic rod (11).

5. The crossbeam structure of a skeleton vehicle lock according to claim 2, characterized in that: A through hole (9) is provided on the mounting plate (8) from top to bottom, the mounting space is formed in the through hole (9), and one end of the limiting pin (14) extends through the through hole (9).

6. A crossbeam structure of a skeleton vehicle lock according to claim 1, characterized in that: A locking groove (6) is provided on the side surface of one end of the locking head (7), and a rotation groove (15) is provided on the bottom of the locking head (7) on the side away from the locking groove (6). The locking head (7) is rotatably mounted on the top of the threaded rod (3) via the rotation groove (15).

7. The crossbeam structure of a skeleton vehicle lock according to claim 1, characterized in that: A rotating portion (4) is welded to the bottom end of the threaded rod (3), and a plurality of anti-slip grooves are provided at equal distances on the outer side of the rotating portion (4).

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