Take-up and pay-off belt locking device of car carrier

Abstract

The utility model provides a take-up and pay-off belt locking device of a car carrier, and belongs to the technical field of transportation binding. Comprising a reel which is rotatably connected to the bottom of a vehicle carrying plate and can rotate forwards or reversely, a binding belt is wound on the reel, one end of the binding belt can upwards stretch out of the vehicle carrying plate, and the device is characterized in that one end of the reel is fixedly connected with a ratchet wheel, the bottom of the vehicle carrying plate is further provided with a blocking bird which can be engaged and locked with the ratchet wheel, and the blocking bird is fixedly connected with the reel. An elastic piece enabling the blocking bird to have the tendency of being meshed and locked with the ratchet wheel in the reverse rotation direction all the time is connected between the vehicle carrying plate and the blocking bird, and a driving piece capable of driving the blocking bird to be separated from the ratchet wheel is fixed to the bottom of the vehicle carrying plate. According to the locking device for the binding belt, the binding belt is collected, released and locked through few parts, a reliable locking mechanism is provided, the structure of the locking device for collecting and releasing the binding belt is simplified, the binding belt is tensioned all the time through cooperation of the blocking bird and the ratchet wheel in the transportation process, binding is stable and reliable, and high stability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transport binding and relates to a retractable belt locking device for a car transporter. Background Art

[0002] A car carrier is a tool used to transport cars. In order to avoid the instability of the car caused by bumps during transportation, the car carrier needs to be fixed on the car carrier's loading board to ensure stability and safety. Usually, the car's tires are fixed.

[0003] A car carrier tie-down device disclosed in a Chinese patent with application number 201910040354.1 includes a transmission structure, a driving member, an engaging claw and a worm wheel. The transmission structure includes a gear set and a driving gear connected to the driving member. One end of the worm passes through a mounting plate and is sleeved with a passive gear. The passive gear rotates synchronously with the worm. The active gear drives the passive gear to rotate synchronously through the gear set. The worm includes a front rod body, a rear rod body and a section of spiral teeth connected between the front rod body and the rear rod body. A shaft sleeve is fixedly arranged in the mounting hole. The rear rod body of the worm is rotatably arranged in the shaft sleeve and the end of the rear rod body is connected to the passive gear. The worm can move axially relative to the shaft sleeve and the passive gear so that the spiral teeth of the worm and the worm wheel are engaged or not engaged with each other.

[0004] The transmission structure of the above solution is too complicated, the number of parts is large, the axial movement design of the worm is complex, and high assembly precision is required. These factors will increase the difficulty of design, manufacturing and maintenance, bring certain pressure to product cost control, and cannot guarantee the stability and performance of the device. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and propose a retractable belt locking device for a car carrier. The technical problem to be solved by the utility model is: how to simplify the structure of the retractable belt locking device and ensure the stability and performance of the device.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A retractable belt locking device for a car carrier comprises a reel that is rotatably connected to the bottom of a car loading plate and can rotate forward or reverse, a strap being wound around the reel, one end of the strap being able to extend upward from the car loading plate, and characterised in that a ratchet is fixedly connected to one end of the reel, a bird stop that can engage and lock with the ratchet is also provided at the bottom of the car loading plate, an elastic member is connected between the car loading plate and the bird stop so that the bird stop always has a tendency to engage and lock with the ratchet in the reverse direction, and a driving member that can drive the bird stop to separate from the ratchet is fixed to the bottom of the car loading plate.

[0008] First, drive the car to the specified position on the loading plate, and then the driving part drives the bird stop to separate from the ratchet, and the reel rotates in the opposite direction to release the strap. The strap is pulled along the circumference of the car wheel to the pull-out end and fixed on the loading plate to tie the car wheel. At this time, the driving part stops working, and the bird stop engages and locks with the ratchet in the reverse direction of the ratchet under the action of the elastic part. Then the reel rotates forward to reel up the strap. Since the end of the strap extending out of the loading plate has been fixed on the loading plate, the reel provides tension for the strap during the reeling process, so that the strap can be firmly tied to the wheel. During the forward rotation of the reel, the bird stop cooperates with the rotation of the ratchet to move, and after each action is completed, the bird stop will abut against the ratchet under the action of the elastic part to lock the ratchet in the reverse direction. The elastic member and the driving member are used to change the matching state of the bird stopper and the ratchet wheel, and the retraction, release and locking of the strap are achieved through fewer parts, providing a reliable locking mechanism and simplifying the structure of the retractable and retractable strap locking device. The setting of the elastic member realizes the self-locking of the bird stopper and the ratchet wheel when rotating in opposite directions, and at the same time can reduce the load of the driving member, so that the driving member only works when releasing the strap, reducing the energy consumption of the driving member, and there is no need to keep the driving member in a working state for a long time, thereby ensuring the performance of the device and the life of the driving member. During transportation, the cooperation between the bird stopper and the ratchet wheel ensures that the strap is always tensioned, and the binding is firm and reliable with strong stability.

[0009] In the above-mentioned retractable belt locking device for a car carrier, the bottom of the vehicle loading plate has a mounting plate 1 and a mounting plate 2 arranged vertically opposite to each other, the reel is horizontally rotatably connected between the mounting plate 1 and the mounting plate 2, one end of the reel extends out of the mounting plate 1 and is connected to the ratchet, and the bird stop is rotatably connected to the outer side of the mounting plate 1. The device is arranged at the bottom of the vehicle loading plate, which protects the device on the one hand and makes full use of the space at the bottom of the vehicle loading plate on the other hand. The arrangement of the mounting plate 1 and the mounting plate 2 can provide support for the reel and connect the ratchet through one end extending out of the mounting plate 1. The compact and stable structural layout is adopted to realize the locking function, taking into account factors such as performance, reliability and cost, and has strong practicality.

[0010] In the above-mentioned locking device for the retractable belt of a car carrier, the middle part of the bird stopper has a mounting hole, and a positioning pin fixed to the mounting plate 1 is inserted into the mounting hole. The setting of the positioning pin forms a rotation support point for the bird stopper to rotate relative to the mounting plate 1. This support point can provide stability for the bird stopper on the one hand, and can adapt to the elastic member and the driving member on the other hand. When the elastic member and the driving member act on the bird stopper, the bird stopper only needs to change its angle to achieve the separation from the ratchet and self-locking state.

[0011] In the above-mentioned locking device for the retractable and retractable belt of a car carrier, the vehicle loading plate is provided with a baffle extending downward, and the two sides of the upper end of the bird stopper extend upward to form a mounting portion, a connecting shaft is connected between the two mounting portions, and the elastic member is a tension spring, one end of which is fixed on the baffle plate, and the other end is connected to the connecting shaft. When the driving member drives the bird stopper to rotate to disengage from the ratchet, the tension spring is stretched and has an elastic reset force. When the belt is released and the belt needs to be retracted and tightened, the driving member stops working. At this time, the bird stopper rotates under the elastic reset force of the tension spring and is locked with the ratchet in the reverse direction. Secondly, when the ratchet rotates forward, the tension spring will be stretched to a certain extent each time the bird stopper cooperates. Therefore, after each cooperation action is completed, the tension spring will return to its original state to help lock the bird stopper with the ratchet. The structure is simple, the cost is low, and it is easy to replace.

[0012] In the above-mentioned retractable belt locking device for a car carrier, the driving member is a cylinder, and the end of the piston rod of the cylinder is connected to a U-shaped connecting member, which is inserted between the two mounting parts and hinged by a connecting pin. The cylinder pulls the bird stopper to rotate around the positioning pin and disengage from the ratchet wheel. Using the cylinder as a driving member has high reliability and controllability, and has low cost.

[0013] In the above-mentioned locking device for the retractable and retractable belt of a car carrier, a driving motor is fixed to the outer side of the second mounting plate, and the output shaft of the driving motor passes through the second mounting plate and is fixed to the reel, and the output shaft of the driving motor is coaxial with the reel. The reel is rotated by the driving motor, and after the tire is tied and the tension of the strap is adjusted, the driving motor stops working, and self-locking is achieved by a spring, thereby reducing the energy consumption of the driving motor.

[0014] In the above-mentioned retractable belt locking device for a car carrier, there is a gap between the ratchet and the bird stop and the outer side surface of the mounting plate. The gap can prevent contact friction between the ratchet and the bird stop and the mounting plate, reduce wear, extend the service life of the parts, and make the movement of the ratchet and the bird stop smoother.

[0015] In the above-mentioned retractable belt locking device for a car carrier, the vehicle loading plate is provided with a belt exit hole, and the position of the belt exit hole is close to the position of the bird stop. The setting of the belt exit hole can provide a direct exit channel for the strap, which is convenient for the strap to extend from the vehicle loading plate, thereby improving the convenience of use.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] 1. The matching state between the bird stopper and the ratchet is changed by means of an elastic member and a driving member, and the retraction, release and locking of the strap are realized by means of fewer parts, a reliable locking mechanism is provided, and the structure of the retractable and releasing strap locking device is simplified.

[0018] 2. The setting of the elastic part realizes the self-locking of the bird stopper and the ratchet wheel when rotating in opposite directions, and at the same time can reduce the load of the driving part, so that the driving part only works when the belt is released, reducing the energy consumption of the driving part, and there is no need to keep the driving part in a working state for a long time, thereby ensuring the performance of the device and the life of the driving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a usage state diagram of the utility model.

[0020] Figure 2 yes Figure 1 Magnified view of area A.

[0021] Figure 3 It is a structural sectional view of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the utility model.

[0023] Figure 5 It is a structural exploded view of the utility model.

[0024] In the figure, 1, vehicle loading plate; 11, mounting plate 1; 12, mounting plate 2; 13, baffle plate; 14, belt outlet hole; 2, reel; 3, strap; 4, ratchet; 5, bird stopper; 51, mounting hole; 52, mounting portion; 6, elastic member; 7, driving member; 8, positioning pin; 9, connecting shaft; 101, connecting member; 102, connecting pin; 103, driving motor. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to the following embodiments.

[0026] like Figure 1-5 As shown, a retractable belt locking device for a car carrier, the car carrier includes a car loading plate 1, the retractable belt locking device includes a reel 2 that is rotatably connected to the bottom of the car loading plate 1 and can rotate forward or reverse, a strap 3 is wound on the reel 2, one end of the strap 3 can extend upward from the car loading plate 1, a ratchet 4 is fixedly connected to one end of the reel 2, a bird stop 5 that can engage and lock with the ratchet 4 is also provided at the bottom of the car loading plate 1, a belt outlet hole 14 is provided on the car loading plate 1, the position of the belt outlet hole 14 is close to the position of the bird stop 5 so that the strap 3 can extend out of the car loading plate 1, an elastic member 6 is connected between the car loading plate 1 and the bird stop 5 so that the bird stop 5 always has a tendency to engage and lock with the ratchet 4 in the reverse direction, a driving member 7 is fixed to the bottom of the car loading plate 1, the driving member 7 is a cylinder, the bird stop 5 is connected to the driving member 7 and can be separated from the ratchet 4 through the driving member 7.

[0027] The bottom of the vehicle loading plate 1 has a mounting plate 11 and a mounting plate 2 12 which are vertically opposite to each other, the reel 2 is horizontally rotatably connected between the mounting plate 11 and the mounting plate 2 12, one end of the reel 2 extends out of the mounting plate 11 and is connected to the ratchet 4, the bird stop 5 is rotatably connected to the outer side surface of the mounting plate 11, and there is a gap between the ratchet 4 and the bird stop 5 and the outer side surface of the mounting plate 11 to prevent contact friction between the ratchet 4 and the bird stop 5 and the mounting plate, a driving motor 103 is fixed to the outer side surface of the mounting plate 2 12, the output shaft of the driving motor 103 passes through the mounting plate 2 12 and is fixed to the reel 2, the output shaft of the driving motor 103 is coaxial with the reel 2, and a mounting hole 51 is provided in the middle of the bird stop 5, a positioning pin 8 fixed to the mounting plate 11 is passed through the mounting hole 51. By setting the mounting plate 1 11 and the mounting plate 2 12, support can be provided for the reel 2 and the ratchet 4 can be connected by extending one end of the mounting plate 11. A compact and stable structural layout is adopted to realize the locking function, taking into account factors such as performance, reliability and cost, and having strong practicality. The setting of the locating pin 8 forms a rotating support point on which the bird stopper 5 can rotate relative to the mounting plate 11. On the one hand, this support point can provide stability for the bird stopper 5, and on the other hand, it can adapt to the elastic member 6 and the driving member 7. When the elastic member 6 and the driving member 7 act on the bird stopper 5, the bird stopper 5 only needs to change its angle to achieve separation from the ratchet 4 and self-locking state.

[0028] A baffle 13 is extended downwardly from the loading plate 1, and both sides of the upper end of the bird stopper 5 extend upwardly to form a mounting portion 52, and a connecting shaft 9 is connected between the two mounting portions 52. The elastic member 6 is a tension spring, one end of which is fixed on the baffle 13, and the other end is connected to the connecting shaft 9. When the driving member 7 drives the bird stopper 5 to rotate to disengage from the ratchet 4, the tension spring is stretched and has an elastic reset force to help lock the bird stopper 5 with the ratchet 4. The structure is simple, the cost is low, and it is easy to replace. The end of the piston rod of the cylinder is connected to a U-shaped connecting member 101, which is inserted between the two mounting portions 52 and hinged by a connecting pin 102.

[0029] When in use, first drive the car to the specified position on the car loading plate 1, then the driving member 7 drives the bird stop 5 to separate from the ratchet 4, the driving motor 103 drives the reel 2 to rotate in the opposite direction to release the strap 3, the strap 3 is pulled along the circumference of the car wheel to the pull-out end and fixed on the car loading plate 1, and the car wheel is tied, at this time the driving member 7 stops working, the bird stop 5 is meshed and locked with the ratchet 4 in the reverse direction of the ratchet 4 under the action of the elastic member 6, and then the reel 2 rotates forward to reel the strap 3, because the end of the strap 3 extending out of the car loading plate 1 has been fixed On the vehicle loading plate 1, therefore, the reel 2 provides tension for the strap 3 during the winding process, so that the strap 3 can be firmly tied to the wheel. During the forward rotation of the reel 2, when the tape is unwound and the strap 3 needs to be wound up and tightened, the driving member 7 stops working. At this time, the bird stopper 5 rotates under the elastic restoring force of the tension spring and is locked with the ratchet 4 in the reverse direction. Secondly, when the ratchet 4 rotates forward, the tension spring will be stretched to a certain extent during each cooperation action of the bird stopper 5. Therefore, after each cooperation action is completed, the tension spring will return to its original state to achieve self-locking.

[0030] The present invention uses a novel elastic member 6 and a driving member 7 to change the matching state of the bird stopper 5 and the ratchet 4, realizes the retraction, release and locking of the strap 3 through fewer parts, provides a reliable locking mechanism, and simplifies the structure of the retractable and retractable strap locking device. The setting of the elastic member 6 realizes the self-locking of the bird stopper 5 and the ratchet 4 when rotating in opposite directions, and can reduce the load of the driving member 7 at the same time, so that the driving member 7 only works when releasing the strap, reducing the energy consumption of the driving member 7, and there is no need to keep the driving member 7 in a working state for a long time, thereby ensuring the performance of the present device and the life of the driving member 7. During transportation, the cooperation between the bird stopper 5 and the ratchet 4 keeps the strap 3 always tensioned, and the binding is firm and reliable with strong stability.

[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A retractable belt locking device for a car carrier, comprising a reel (2) rotatably connected to the bottom of a vehicle loading plate (1), a strap (3) being wound around the reel (2), one end of the strap (3) being able to extend upward from the vehicle loading plate (1), characterized in that: One end of the reel (2) is fixedly connected to a ratchet (4); a bird stop (5) capable of engaging and locking with the ratchet (4) is also provided at the bottom of the vehicle loading plate (1); an elastic member (6) is connected between the vehicle loading plate (1) and the bird stop (5) so that the bird stop (5) always has a tendency to engage and lock with the ratchet (4); and a driving member (7) capable of driving the bird stop (5) to separate from the ratchet (4) is fixed at the bottom of the vehicle loading plate (1).

2. A retractable belt locking device for a car carrier according to claim 1, characterized in that: The bottom of the vehicle loading plate (1) has a mounting plate 1 (11) and a mounting plate 2 (12) arranged vertically opposite to each other, the reel (2) is horizontally rotatably connected between the mounting plate 1 (11) and the mounting plate 2 (12), one end of the reel (2) extends out of the mounting plate 1 (11) and is connected to the ratchet (4), and the bird stop (5) is rotatably connected to the outer side surface of the mounting plate 1 (11).

3. A retractable belt locking device for a car carrier according to claim 2, characterized in that: The middle part of the bird stopper (5) is provided with a mounting hole (51), and a positioning pin (8) fixed to the mounting plate (11) is passed through the mounting hole (51).

4. A retractable belt locking device for a car carrier according to claim 3, characterized in that: The vehicle loading plate (1) is provided with a baffle (13) extending downwards, and both sides of the upper end of the bird baffle (5) extend upwards to form mounting portions (52), a connecting shaft (9) is connected between the two mounting portions (52), and the elastic member (6) is a tension spring, one end of which is fixed on the baffle (13) and the other end is connected to the connecting shaft (9).

5. A retractable belt locking device for a car carrier according to claim 4, characterized in that: The driving member (7) is a cylinder, and the end of the piston rod of the cylinder is connected to a U-shaped connecting member (101). The connecting member (101) is inserted between the two mounting parts (52) and is hinged by a connecting pin (102).

6. A retractable belt locking device for a car carrier according to any one of claims 2 to 5, characterized in that: A driving motor (103) is fixed on the outer side surface of the second mounting plate (12); an output shaft of the driving motor (103) passes through the second mounting plate (12) and is fixed to the reel (2); the output shaft of the driving motor (103) is coaxial with the reel (2).

7. A retractable belt locking device for a car carrier according to claim 5, characterized in that: There is a gap between the ratchet (4) and the bird stop (5) and the outer side surface of the mounting plate (11).

8. The retractable belt locking device of a car carrier according to claim 6, characterized in that: The vehicle loading plate (1) is provided with a belt outlet hole (14), and the belt outlet hole (14) is located close to the bird stop (5).

Images