Self-locking main beam pipe

Abstract

The utility model provides a self-locking main beam tube, including body, lockset and tension spring, one end of body is equipped with the seat tube mounting seat, body is equipped with the cavity, the tension spring is provided on the body, lockset includes lock head, lock rope and main lock body, the main lock body is provided on the seat tube mounting seat, lock head is provided at one end of lock rope, the main lock body is provided on the main lock body, the lock rope is provided on the main lock body. The lock rope and the tension spring are arranged in a cavity of the body, the main lock body is provided with a lock head hole, a lock connecting hole and a lock tongue cavity, a lock tongue is arranged in the lock tongue cavity, the lock head retracts into the lock head hole under the action of the tension spring, and when the lock head overcomes the tension of the tension spring to stretch out of the lock head hole and is inserted into the lock connecting hole, the lock head is locked in the lock connecting hole. And the lock tongue can lock the lock head in the locking hole. According to the main beam pipe capable of being self-locked, the lock head and the lock rope can be retracted into the lock for sealing, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frame parts, in particular to a self-locking main beam tube. Background Art

[0002] Currently, most of the scooters, bicycles, electric bicycles and other mobility scooters on the market have anti-theft functions by installing locks. Existing traditional vehicle body locks are mostly separate units, generally chain locks or U-shaped locks, which are not easy to carry and are easily lost when separated from the vehicle body, causing economic losses.

[0003] For example, Chinese Patent No. 201610655998.8 discloses a method for providing a bicycle seat branch with a built-in lock, which combines the seat branch with the lock function, greatly improving travel convenience and solving the problem of locks being difficult to carry or forgotten. However, the lock head, tongue lock, and part of the soft steel wire rope of this solution are exposed to the outside air, which is not only untidy and aesthetically pleasing, but also easily causes the lock head and tongue lock to rust when exposed to water, thus shortening the service life of the lock. Utility Model Content

[0004] The purpose of the utility model is to provide a self-locking main beam tube, which can retract the lock head and the lock rope into the lock for sealing, thereby extending the service life.

[0005] The technical solution adopted by the self-locking main beam pipe disclosed in the utility model is:

[0006] A self-locking main beam tube comprises a main body, the main body is provided with a seat tube mounting seat, and also comprises a lock and a tension spring, the main body is provided with a cavity, the tension spring is provided on the main body, the lock comprises a lock head, a lock rope and a main lock body, the main lock body is provided on the seat tube mounting seat, the lock head is provided at one end of the lock rope, the lock rope and the tension spring are provided in the cavity of the main body, the main lock body is provided with a lock head hole, a lock connection hole and a lock tongue cavity, a lock tongue is provided in the lock tongue cavity, the lock head retracts into the lock head hole under the action of the tension spring, when the lock head overcomes the tension of the tension spring and extends out of the lock head hole, and the lock head is inserted into the lock connection hole, the lock tongue can lock the lock head tightly in the lock connection hole.

[0007] As a preferred solution, a fixing seat is provided at one end of the main body, and one end of the tension spring is provided on the fixing seat.

[0008] As a preferred solution, a pulley is provided at the other end of the tension spring, and the locking rope passes around the pulley.

[0009] As a preferred solution, another pulley is provided at one end of the seat tube mounting base, the other pulley is arranged in the cavity, and the locking rope also passes around the other pulley.

[0010] As a preferred solution, a fixing seat is provided at the other end of the body, a pulley is provided on the fixing seat, the tension spring is provided on the seat tube mounting seat, and the locking rope is passed around the pulley.

[0011] As a preferred solution, another pulley is provided at the other end of the tension spring, and the locking rope passes around the other pulley.

[0012] As a preferred solution, a fixing plate is connected between the fixing seat and the seat tube mounting seat, a slide rail is provided on the fixing plate, and the pulley is slidably arranged on the slide rail.

[0013] As a preferred solution, a buckle is provided at one end of the lock head, and the buckle includes a sleeve portion and a sealing cover. The sleeve portion is sleeved on one end of the lock head, and the sealing cover can be snap-connected to the lock head hole and the lock connecting hole.

[0014] As a preferred solution, the seat tube mounting base is provided with a seat tube socket and a fixing assembly, the fixing assembly includes a tightening screw, a pad and a tightening block, the tightening block is arranged on the inner wall of the seat tube socket, one end of the tightening block is provided with a screw hole, the pad is provided with a mounting hole, the tightening screw passes through the mounting hole, and the tightening screw is installed in the screw hole to form a threaded connection.

[0015] As a preferred solution, a snap-fit ​​groove is provided on the surface of the lock head. When the lock head is arranged in the lock hole, the lock tongue extends into the snap-fit ​​groove to form a snap-fit ​​connection.

[0016] The self-locking main beam tube disclosed by the utility model has the following beneficial effects: the lock is provided with a lock head hole and a lock connection hole; the lock head is retracted and hidden in the lock head hole in the riding state; when the bicycle needs to be locked, the lock head is pulled to move outward, the lock head and the lock rope overcome the elastic force of the tension spring, the lock rope can be wrapped around an external fixed object for binding, and then the lock head is plugged into the lock connection hole, and the lock tongue can lock the lock head in the lock connection hole to complete the bicycle locking operation; when it needs to be unlocked, the lock tongue can be driven to retract, and the lock rope is retracted into the lock head hole under the action of the elastic recovery of the tension spring. When the lock head is not in use, it will not be exposed to the outside and is not easy to be rusted and worn, thereby extending the service life. In addition, it is stored inside the main body, and the overall appearance is beautiful and not abrupt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a self-locking main beam tube.

[0018] Figure 2 This is a schematic diagram of the structural decomposition of a self-locking main beam tube of the utility model.

[0019] Figure 3 This is a schematic diagram of the structural decomposition of a self-locking main beam tube of the utility model from another perspective.

[0020] Figure 4 The utility model is a schematic diagram of the internal structure of a self-locking main beam tube.

[0021] Figure 5 This is a schematic diagram of the internal structure of a self-locking main beam tube embodiment 2 of the present invention.

[0022] Figure 6 The utility model is an exploded schematic diagram of the internal structure of a self-locking seat tube mounting seat in a main beam tube.

[0023] Figure 7 The utility model is a structural decomposition diagram of a self-locking seat tube mounting seat in a main beam tube. DETAILED DESCRIPTION

[0024] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0025] Example 1

[0026] refer to Figures 1 to 4 A self-locking main beam tube includes a body 10, a lock 20 and a tension spring 30. The body 10 is provided with a seat tube mounting seat 11, the body 10 is provided with a cavity 12, the tension spring 30 is provided on the body 10, the lock 20 includes a lock head 21, a lock rope 22 and a main lock body 23, the main lock body 23 is provided on the seat tube mounting seat 11, the lock head 21 is provided at one end of the lock rope 22, the lock rope 22 and the tension spring 30 are provided on the body 10 In the cavity 12, the main lock body 23 is provided with a lock head hole 231, a lock connection hole 232 and a lock tongue cavity 233, and a lock tongue 234 is provided in the lock tongue cavity 233. The lock head 21 retracts into the lock head hole 231 under the action of the tension spring 30. When the lock head 21 overcomes the tension of the tension spring 30 and extends out of the lock head hole 231, and the lock head 21 is inserted into the lock connection hole 232, the lock tongue 234 can lock the lock head 21 in the lock connection hole 232.

[0027] One end of the body 10 is provided with a fixing seat 13, and one end of the tension spring 30 is provided on the fixing seat 13. The fixing seat 13 can be fixed to one end of the body 10, or can be integrally formed with the body 10.

[0028] A pulley 41 is provided at the other end of the tension spring 30, and the locking rope 22 passes around the pulley 41. When the tension spring 30 is stretched and retracted, the pulley 41 moves together with the tension spring 30 inside the body 10, wherein the pulley connected to the tension spring 30 is a movable pulley, and another pulley 42 is provided at one end of the seat tube mounting seat 11. The other pulley 42 is arranged in the cavity 12, and the locking rope 22 also passes around the other pulley 42. This other pulley 42 is a fixed pulley, and the fixed pulley is fixed to one end of the fixed mounting seat 11.

[0029] The locking rope 22 is wound around the movable pulley and the fixed pulley in a circular manner, which makes it easier to pull the lock rope 22 out, and the locking rope 22 can be stretched over a long distance, so that it can be bound to a larger external fixed object, and the anti-theft performance is stronger.

[0030] Example 2

[0031] refer to Figure 5 and Figure 6 A self-locking main beam tube includes a body 10, a lock 20 and a tension spring 30. One end of the body 10 is provided with a seat tube mounting seat 11, the body 10 is provided with a cavity 12, the tension spring 30 is provided on the body 10, the lock 20 includes a lock head 21, a lock rope 22 and a main lock body 23, the main lock body 23 is provided on the seat tube mounting seat 11, the lock head 21 is provided at one end of the lock rope 22, the lock rope 22 and the tension spring 30 are provided on the body In the cavity 12 of 10, the main lock body 23 is provided with a lock head hole 231, a lock connection hole 232 and a lock tongue cavity 233, and a lock tongue 234 is provided in the lock tongue cavity 233. The lock head 21 retracts into the lock head hole 231 under the action of the tension spring 30. When the lock head 21 overcomes the tension of the tension spring 30 and extends out of the lock head hole 231, and the lock head 21 is inserted into the lock connection hole 232, the lock tongue 234 can lock the lock head 21 in the lock connection hole 232.

[0032] The other end of the body 10 is provided with a fixing seat 13, which can be fixed to one end of the body 10 or integrally formed with the body 10. A pulley 42 is provided on the fixing seat 13. The tension spring 30 is provided on the seat tube mounting base 11, and the locking rope 22 is passed around the pulley 42. Another pulley 41 is provided on the other end of the tension spring 30, and the locking rope 22 is passed around the other pulley 41.

[0033] The locking rope 22 is then pulled out of the locking head 21 and the ring locking rope 22 is wound around the movable pulley and the fixed pulley, which makes it easier to pull out the locking rope 22.

[0034] refer to Figure 5 A fixing plate 14 is connected between the fixing seat 13 and the seat tube mounting seat 11 , and sliding grooves 141 are provided on both sides of the fixing plate 14 , and the pulley 41 can be slidably set on the sliding grooves 141 .

[0035] Among them, sliding grooves 141 are provided on both sides of the fixed plate 14, one end of the pulley 41 is connected to a guide slide, and guide slide rods are provided at both ends of the guide slide. The guide slide rods can be installed in the sliding grooves 141 at both ends of the support plate. When the tension spring is stretched and retracted, the pulley 41 can slide on the sliding groove 141 to play a guiding sliding role.

[0036] refer to Figure 6 A buckle 24 is provided at one end of the lock head 21, and the buckle 24 includes a sleeve portion 241 and a sealing cover 242. The sleeve portion 241 is sleeved on one end of the lock head 21, and the sealing cover 242 can be snap-connected to the lock head hole 231 and the lock hole 232.

[0037] Among them, under normal conditions, the lock head 21 is hidden in the lock head hole 231, and the sealing cover 242 covers the lock head hole 231 and the lock connection hole 232 to seal, preventing external water from flowing into the interior of the lock 10, with high protection performance, and the sleeve portion 241 is sleeved on one end of the lock head 21, and the lock head 21 can be directly pulled out of the lock head hole 231 by pulling the sealing cover 242, and the lock rope 22 is also pulled out together, thereby realizing the car locking operation, which is simple and convenient to operate.

[0038] In other embodiments, the pull buckle 24 may not be provided, and an opening is provided on the seat tube mounting base 11, through which the lock head 21 can be directly accessed through the opening by an external object, such as a draw hook, and the lock head 22 can be directly pulled out of the lock head hole 231.

[0039] refer to Figure 7The seat tube mounting base 11 is provided with a seat tube socket 111 and a fixing assembly 112. The fixing assembly 112 includes a tightening screw 1121, a pad 1123 and a tightening block 1122. The tightening block 1122 is arranged on the inner wall of the seat tube socket 111. One end of the tightening block 1122 is provided with a screw hole. The pad 1123 is provided with a mounting hole. The tightening screw 1121 passes through the mounting hole. The tightening screw 1121 is installed in the screw hole to form a threaded connection.

[0040] Among them, the seat tube beam can be movably installed in the seat tube socket 111, and the tightening screw 1121 is installed in the mounting hole on the cushion block 1123. By tightening the tightening screw 1121, the threaded connection is made into the screw hole on the clamping block 1122, and a force is generated in the direction of the clamping block 1122. The surface of the clamping block 1122 is provided with an arc groove, which can be well abutted against the outer surface of the seat tube beam. The clamping block 1122 can be adjusted to tighten the seat beam tube to ensure that the seat tube beam is installed on the main beam tube. The overall structure is stable. When the tightening screw 1121 is loosened, the height of the seat tube beam can be adjusted, which can be adjusted arbitrarily and the operation is simple and convenient.

[0041] The locking head 21 has a snap-fitting groove 211 on its surface. When the locking head 21 is placed in the locking hole 232, the locking tongue 234 extends into the snap-fitting groove 211 to form a snap-fit ​​connection. When the locking head 21 is inserted into the locking hole 232, the locking tongue 234 snaps into the snap-fitting groove 211 on the locking head 21, completing the locking action.

[0042] In summary, this solution proposes a self-locking main beam tube. When riding, the lock head 21 retracts and hides in the lock head hole 231. A sink groove is provided in the lock head hole 231 to prevent the lock head 21 from retracting into the cavity 12. When it is necessary to lock the bicycle, the pull buckle 24 on the lock head 21 is pulled outward, and the lock head 21 and the lock rope 22 overcome the elastic force of the tension spring 30. The lock rope 22 can be wrapped around an external fixed object for binding. Then the lock head 21 is inserted into the lock hole 232, and the lock tongue 234 can be locked. The lock head 21 is locked in the lock hole 232 to complete the vehicle locking operation; when unlocking is required, the lock tongue 234 can be driven to retract, and the lock rope 22 is retracted into the lock head hole 231 under the elastic recovery action of the tension spring 30. When not in use, the lock head 21 will not be exposed to the outside, and the lock head hole 231 and the lock hole 232 are sealed by the sealing cover 242, making the lock head 21 and the lock rope 22 not easily rusted and worn, extending the service life, and stored inside the body 10, the overall appearance is beautiful and not abrupt.

[0043] It should be noted that the self-locking main beam tube proposed in this embodiment can be applied to vehicles with main beam tubes, such as bicycles and motorcycles.

[0044] 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 the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A self-locking main beam tube, comprising a body, wherein the body is provided with a seat tube mounting seat, characterized in that: The lock assembly further comprises a lock and a tension spring, wherein the main body is provided with a cavity, the tension spring is provided on the main body, the lock assembly comprises a lock head, a lock rope and a main lock body, the main lock body is provided on a seat tube mounting seat, the lock head is provided at one end of the lock rope, the lock rope and the tension spring are provided in the cavity of the main body, the main lock body is provided with a lock head hole, a lock connection hole and a lock tongue cavity, a lock tongue is provided in the lock tongue cavity, the lock head retracts into the lock head hole under the action of the tension spring, and when the lock head overcomes the tension of the tension spring and extends out of the lock head hole, and the lock head is inserted into the lock connection hole, the lock tongue can lock the lock head in the lock connection hole.

2. The self-locking main beam tube according to claim 1, characterized in that: One end of the body is provided with a fixing seat, and one end of the tension spring is provided on the fixing seat.

3. The self-locking main beam tube according to claim 2, characterized in that: The other end of the tension spring is provided with a pulley, and the locking rope passes around the pulley.

4. The self-locking main beam tube according to claim 3, characterized in that: Another pulley is provided at one end of the seat tube mounting base. The other pulley is arranged in the cavity, and the locking rope also passes around the other pulley.

5. The self-locking main beam tube according to claim 1, characterized in that: A fixing seat is provided at the other end of the main body, a pulley is provided on the fixing seat, the tension spring is provided on the seat tube mounting seat, and the locking rope is passed around the pulley.

6. The self-locking main beam tube according to claim 5, characterized in that: Another pulley is provided at the other end of the tension spring, and the locking rope passes around the other pulley.

7. The self-locking main beam tube according to claim 6, characterized in that: A fixing plate is connected between the fixing seat and the seat tube mounting seat. A slide rail is provided on the fixing plate, and the pulley is slidably arranged on the slide rail.

8. The self-locking main beam tube according to claim 1, characterized in that: A buckle is provided at one end of the lock head, and the buckle includes a sleeve portion and a sealing cover. The sleeve portion is sleeved on one end of the lock head, and the sealing cover can be snap-connected to the lock head hole and the lock connection hole.

9. The self-locking main beam tube according to claim 1, characterized in that: The seat tube mounting seat is provided with a seat tube socket and a fixing assembly, and the fixing assembly includes a tightening screw, a pad and a tightening block. The tightening block is arranged on the inner wall of the seat tube socket, one end of the tightening block is provided with a screw hole, and the pad is provided with a mounting hole. The tightening screw passes through the mounting hole, and the tightening screw is installed in the screw hole to form a threaded connection.

10. The self-locking main beam tube according to claim 1, characterized in that: The lock head is provided with a snap-fitting groove. When the lock head is arranged in the lock hole, the lock tongue extends into the snap-fitting groove to form a snap-fitting connection.

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