Detachable lifting spin lock and semitrailer

Abstract

The utility model provides a detachable lifting spin lock and a semitrailer. The detachable lifting spin lock comprises a lock seat, a lock rod and a lock head arranged at the top of the lock rod. A vertical center hole is formed in the lock seat, and a mounting round hole and two pairs of vertical grooves are formed in the side wall of the center hole; the lower portion of the lock rod penetrates through the center hole to be arranged on the outer side of the lock seat, a C-shaped clamping spring used for vertically holding the lock seat is arranged in the middle of the lock rod in a clamping mode, and an elastic positioning mechanism elastically matched with the groove is transversely arranged on the upper portion of the lock rod. The detachable lifting spin lock is convenient to detach, and meanwhile, the spin lock can be rotationally positioned and lubricated in time.

Description

Technical Field

[0001] The utility model relates to the field of semitrailer rotary locks, in particular to a detachable lifting rotary lock and a semitrailer. Background Art

[0002] Container transport semi-trailers are equipped with multiple sets of locks to lock containers of different sizes. Usually, a lifting lock is set in the middle of the semi-trailer. When working, the lifting lock rises to the working position to lock the container. When not working, it falls into the groove of the rotary lock seat and does not interfere with the bottom of the container.

[0003] For example, the utility model patent with the authorization announcement number CN 220595838U discloses an anti-slip structure of a container rotating lock device, comprising two fixing plates, the two fixing plates are connected to a mounting mechanism, the mounting mechanism is in contact with an anti-slip mechanism, the mounting mechanism is connected to a connecting block, the mounting mechanism comprises a mounting cylinder, a mounting groove is provided inside the mounting cylinder, a spring 1 is fixedly connected inside the mounting groove, a limit plate is fixedly connected to the other end of the spring 1, a latch is fixedly connected to the middle of the limit plate, the anti-slip mechanism comprises a placement groove, a spring 2 is fixedly connected inside the placement groove. The anti-slip structure of the container rotating lock device realizes the anti-slip of the rotating lock device, and can prevent the occurrence of safety hazards during transportation, but the anti-slip structure of the container rotating lock device cannot be positioned during the rotation process, and cannot be lubricated in time and easy to disassemble. Utility Model Content

[0004] In order to facilitate disassembly and to be able to perform rotation positioning and timely lubrication of the rotary lock, the technical solution adopted by the utility model is: a detachable lifting rotary lock, comprising a lock seat, a lock rod and a lock head arranged on the top of the lock rod;

[0005] A vertical center hole is provided inside the lock seat, and a mounting circular hole and two pairs of vertical grooves are provided on the side wall of the center hole;

[0006] The lower part of the lock rod passes through the center hole and is arranged on the outer side of the lock seat. The middle part of the lock rod is provided with a C-shaped retaining spring for vertically holding the lock seat. The upper part of the lock rod is laterally provided with an elastic positioning mechanism that elastically cooperates with the groove.

[0007] Based on the above, in order to facilitate installation and disassembly, the elastic positioning mechanism includes a spring that is detachably mounted on the locking rod, and steel balls that slide in cooperation with the grooves are connected to both lateral ends of the spring.

[0008] Based on the above, in order to facilitate the vertical positioning of the lock seat and prevent it from falling, a mounting stepped hole matching the C-shaped retaining spring is provided on the lower surface of the lock seat.

[0009] Based on the above, in order to facilitate the addition of lubricating oil into the lock seat, an oil nozzle mounting hole communicating with the central hole is further provided on one side of the lock seat.

[0010] Based on the above, in order to facilitate the installation of the elastic positioning mechanism, the mounting round hole is located above the groove and communicates with the central hole.

[0011] Based on the above, in order to facilitate the operation and rotation of the lock rod, a handle is detachably arranged at the lower end of the lock rod through a pin.

[0012] The present utility model also provides a semi-trailer, which is equipped with the above-mentioned detachable lifting rotary lock.

[0013] The present utility model has substantial features and progress compared with the prior art. Specifically, the detachable lifting rotary lock and the semi-trailer provided by the present utility model are composed of a lock head, a lock rod, a lock seat, a handle, a C-shaped circlip, a spring, steel balls, and a pin. The middle part of the lock head has a groove for fixing the C-shaped circlip. There is a through hole above the groove for installing the spring and steel balls, and the lower part is for installing the handle and the pin. The upper end of the lock head has an inclined slope to facilitate the positioning when the corner fitting falls. There is a through hole in the center of the lock seat for installing the lock rod. Four vertical grooves are distributed on the surface of the central through hole, and the four grooves are distributed at 90 degrees to cooperate with the spring and steel balls installed in the lock rod for rotational positioning. At the same time, the grooves can also store grease to facilitate the lubrication of the inside of the rotary lock. One side of the lock seat is provided with an oil nozzle mounting hole, and the bottom of the lock seat is provided with a mounting stepped hole for the C-shaped circlip. Through the above structure, the rotary lock can be rotated and positioned and lubricated in a timely manner, and it is also convenient for installation and disassembly. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the detachable lifting rotary lock and the semi-trailer provided by the present utility model.

[0015] Figure 2 is a schematic diagram of the disassembled structure of the detachable lifting rotary lock and the semi-trailer provided by the present utility model.

[0016] Figure 3 is a schematic diagram of the overall structure of the lock seat in the detachable lifting rotary lock and the semi-trailer provided by the present utility model.

[0017] Figure 4 and Figure 5 and Figure 6 is a schematic sectional view of the lock seat in the detachable lifting rotary lock and the semi-trailer provided by the present utility model.

[0018] In the figure: 1. Plug; 2. Handle; 3. Lock rod; 4. Ramp; 5. Handle hole; 6. Lock head; 7. Pin hole; 8. Circlip installation ring groove; 9. Steel ball; 10. Spring steel ball installation hole; 11. Spring; 12. C-shaped circlip; 13. Lock base; 14. Grease nipple installation hole; 15. Central hole; 16. Installation round hole; 17. Groove; 18. Installation stepped hole. Detailed implementation manners

[0019] The technical solution of the present utility model will be further described in detail below through specific implementation manners.

[0020] Embodiment 1

[0021] This embodiment provides a detachable lifting rotary lock, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , which includes a lock base 13, a lock rod 3 and a lock head 6 provided at the top of the lock rod 3.

[0022] A vertical central hole 15 is opened inside the lock base 13, and an installation round hole 16 and two pairs of vertical grooves 17 are opened on the side wall of the central hole 15. Among them, in this embodiment, the four grooves are distributed at ninety degrees.

[0023] The lower part of the lock rod 3 passes through the central hole 15 and is arranged outside the lock base 13. A circlip installation ring groove 8 is opened in the middle of the lock rod 3, and a C-shaped circlip 12 for vertically holding the lock base 13 is arranged in the circlip installation ring groove 8. An elastic positioning mechanism elastically matched with the groove 17 is horizontally arranged on the upper part of the lock rod 3.

[0024] Specifically, in this embodiment, for the convenience of installation and disassembly, the elastic positioning mechanism includes a spring 11 detachably installed on the lock rod 3, and steel balls 9 slidably matched with the grooves 17 are connected to the horizontal two ends of the spring 11. A spring steel ball installation hole 10 is opened on the lock rod 3.

[0025] In order to facilitate the vertical positioning of the lock base and prevent it from falling, an installation stepped hole 18 matched with the C-shaped circlip 12 is opened on the lower surface of the lock base 13. In order to facilitate adding lubricating oil into the lock base, a grease nipple installation hole 14 communicating with the central hole 15 is also opened on one side of the lock base 13.

[0026] In order to facilitate the installation of the elastic positioning mechanism, the installation circular hole 16 is located above the groove 17. The installation circular hole 16 is connected to the center hole 15. In order to facilitate the operation and rotation of the lock rod, the lower end of the lock rod 3 is detachably provided with a handle 2 through a latch 1, and a pin hole 7 is opened on the handle 2. The lock rod is also provided with a handle hole 5.

[0027] Example 2

[0028] This embodiment provides a detachable lifting and rotating lock, which is mainly different from the first embodiment in that: in this embodiment: the elastic positioning mechanism can be a spring plunger. The top four corners of the lock seat are also provided with slopes 4.

[0029] Example 3

[0030] This embodiment provides a semi-trailer equipped with the detachable lifting and rotating lock described in Embodiment 1 or Embodiment 2.

[0031] Specifically, the installation process of the detachable lifting and rotating lock provided by the utility model is as follows:

[0032] When installing, first insert the lower end of the lock rod into the center hole of the lock seat, rotate the lock rod so that the spring steel ball installation hole of the lock rod corresponds to the round hole on the front of the lock seat, put in the steel balls at both ends and the middle spring, then press the outer steel balls and rotate the lock rod, while moving the lock rod downward, so that the steel balls fall into the two grooves in the upper and lower directions inside the center hole of the lock seat. At this time, the lower surface of the lock head fits with the upper surface of the lock seat, and the lock head enters the working position.

[0033] Then use a tool to put the C-shaped retaining ring into the retaining ring installation groove on the lock rod. Since the retaining ring limits the downward movement of the lock seat, the lock seat will not separate from the lower surface of the lock head, thereby limiting the lock seat. Finally, install the handle and latch in sequence to complete the assembly of the rotary lock.

[0034] When working, hold the handle tightly and turn the lock rod to drive the lock head to rotate. The lock rod drives the steel balls at both ends of the spring to rotate at the same time, so that the steel balls are transferred from the two up-and-down grooves on the inner side of the center hole of the lock seat into the next set of corresponding up-and-down grooves. The pressure of the spring will compress the steel balls on both sides of the spring, so that the steel balls cannot move freely in the up-and-down grooves on the inner side of the lock seat, thereby limiting the free rotation of the lock head.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A detachable lifting and rotating lock, characterized in that: It includes a lock seat, a lock rod and a lock head arranged on the top of the lock rod; A vertical center hole is provided inside the lock seat, and a mounting circular hole and two pairs of vertical grooves are provided on the side wall of the center hole; The lower part of the lock rod passes through the center hole and is arranged on the outer side of the lock seat. The middle part of the lock rod is provided with a C-shaped retaining spring for vertically holding the lock seat. The upper part of the lock rod is laterally provided with an elastic positioning mechanism that elastically cooperates with the groove.

2. The detachable lifting and rotating lock according to claim 1, characterized in that: The elastic positioning mechanism comprises a spring detachably mounted on the locking rod, and steel balls which are slidably matched with the grooves are connected to the transverse ends of the spring.

3. The detachable lifting and rotating lock according to claim 2, characterized in that: The lower surface of the lock seat is provided with a mounting stepped hole matched with the C-shaped retaining ring.

4. The detachable lifting and rotating lock according to claim 3, characterized in that: One side of the lock seat is also provided with an oil nozzle installation hole connected to the central hole.

5. The detachable lifting and rotating lock according to claim 4, characterized in that: The mounting circular hole is located above the groove, and the mounting circular hole is connected to the central hole.

6. The detachable lifting and rotating lock according to claim 5, characterized in that: The lower end of the locking rod is detachably provided with a handle via a latch.

7. A semitrailer, characterized in that: The semitrailer is equipped with a detachable lifting and twisting lock as described in any one of claims 1 to 6.

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