Chain type wheel fixing device

Abstract

The utility model provides a chain type wheel fixing device, and belongs to the technical field of logistics transportation. The problem that an existing wheel fixing device is insufficient in wheel fixing effect is solved. The chain type wheel fixing device comprises a bearing plate, a wheel supporting groove is formed in the top face of the bearing plate, a chain track is arranged below the bearing plate, the chain track is provided with a containing channel formed in the length direction of the chain track, and a chain is arranged in the containing channel in a penetrating mode and can move in the length direction of the chain. One end of the chain can upwards stretch out of the containing channel from one side of the wheel supporting groove, and the bearing plate is further provided with a chain wheel which is meshed with the chain and can drive the chain to retract into the containing channel. The chain type wheel fixing device further comprises a locking structure capable of locking the chain to prevent the chain from extending out of the containing channel when the chain wheel stops rotating. The fixing effect of the wheel can be greatly improved, the wheel is prevented from loosening or shifting, and the safety of automobile transportation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics transportation and relates to a chain - type wheel fixing device. Background Technique

[0002] During the transportation of an automobile by truck, ship or train, it is necessary to fix the automobile. Among all components of the automobile, the wheels are components that can be easily fixed and will not damage the automobile. Among them, the wheel binding device is a device that fixes the wheels of an automobile to prevent the vehicle from moving randomly during transportation.

[0003] At present, existing conventional wheel binding devices all rely on binding straps to bind and fix the wheels. For example, Chinese Patent CN206705126U discloses a tire bracket rail vehicle. When this tire bracket rail vehicle is in use, after the automobile tire moves into place, the binding strap is manually pulled out from the ratchet, and then wound around the upper part of the tire from bottom to top until the binding - strap loop is hinged to the ratchet pawl. At this time, the pawl is not buckled on the ratchet, and the ratchet can rotate clockwise. After completing the pulling - strap and preliminary binding operations, the ratchet hexagon shaft is rotated counter - clockwise by using an inner - hexagon socket to drive the tire binding strap to wind around the ratchet. The binding - strap loop pulls the ratchet pawl to rotate counter - clockwise around the ratchet fixed shaft, so that the pawl of the ratchet pawl catches the ratchet and cannot rotate clockwise, thereby realizing the binding lock and finally completing the binding operation of the tire. However, this tire binding device has the following deficiencies in the using process:

[0004] 1. Elongation rate: The binding strap usually has a certain elongation rate, which means that during use, the binding strap may become loose and need to be readjusted. Especially during long - term transportation or under poor road conditions, the binding strap may stretch, resulting in a decrease in the fixing effect, causing the wheels to loosen or shift.

[0005] 2. Durability: The binding strap is usually made of soft materials such as nylon or polyester fiber. These materials may wear, deform or break under long - term use and stress, resulting in a short service life of the binding strap and affecting the wheel - fixing effect.

[0006] At present, in order to solve the problem of insufficient wheel - fixing effect of existing wheel - fixing devices, it is usually considered to improve the strength and durability of the binding strap and reduce the elongation rate of the webbing. The conventional solution techniques are as follows:

[0007] 1. Select high - strength materials to manufacture the binding strap: Add reinforcing materials such as high - strength polyester fiber during the weaving process of the binding strap, so that the binding strap has high tensile strength, wear resistance and low elongation rate, thereby improving the wheel - fixing effect.

[0008] 2. Increase the width and thickness of the binding straps: Wider and thicker binding straps can disperse the force and reduce the elongation, thereby increasing the strength of the binding straps and thus improving the fixing effect of the wheels. Summary of the invention

[0009] The utility model aims to solve the above problems in the prior art and proposes a chain-type wheel fixing device. The utility model solves the problem that the prior wheel fixing device has insufficient wheel fixing effect.

[0010] The purpose of the utility model can be achieved through the following technical solutions: a chain-type wheel fixing device, comprising a bearing plate, the top surface of the bearing plate having a wheel supporting groove, characterized in that a chain track is provided under the bearing plate, the chain track has a accommodating channel arranged along its length direction, a chain is passed through the accommodating channel and the chain can move along its length direction, one end of the chain can extend upward from one side of the wheel supporting groove to the accommodating channel, and a sprocket is also provided on the bearing plate, which engages with the chain and can drive the chain to retract into the accommodating channel. The chain-type wheel fixing device also includes a locking structure that can lock the chain when the sprocket stops rotating to limit the chain from extending out of the accommodating channel.

[0011] When the device is used, the car is first driven into position so that the wheel of the car enters the wheel support groove. After that, one end of the chain is extended upward from one side of the wheel support groove, and the end of the chain is fixed to the other side of the wheel support groove after the chain passes over the top of the wheel. The end of the chain can be fixed by clamping, hooking, bundling, etc. After the end of the chain is fixed, the chain is driven to retract into the accommodating channel by the rotation of the sprocket, so that the chain is tightened and the wheel is tied and fixed. Finally, the chain is locked by the locking structure to keep the chain in a tightened state, thereby completing the bundling and fixing operation of the wheel.

[0012] This chain-type wheel fixing device breaks the form of using a bundling strap to realize the bundling and fixing of the wheel in the conventional technology, and uses a chain to realize the bundling and fixing of the wheel. Specifically, since the chain of this device is made of metal material, it cannot be arbitrarily deformed like a bundling strap and cannot be wound onto a reel like a bundling strap. Therefore, compared with the bundling strap, it is more difficult to realize the storage of the chain and ensure the smooth retraction and extension of the chain. For this reason, this chain-type wheel fixing device is provided with a chain track. Since the chain track has a receiving channel arranged along its length direction, the chain can be well stored in the receiving channel of the chain track. At the same time, the receiving channel can also guide and limit the chain. During the process of the chain extending outwards, the chain track can make the chain maintain a relatively smooth moving posture, thereby further improving the smoothness when the chain moves, ensuring the smooth extension of the chain. At the same time, this device is also provided with a sprocket meshing with the chain. When the sprocket rotates, relying on the guiding of the chain track for the chain, it can ensure that the sprocket drives the chain to move stably and retract smoothly into the receiving channel, thereby enabling the chain to be stably tightened to bundle the wheel and improving the stability and reliability of the wheel bundling process.

[0013] After the chain is tightened, this device is also provided with a locking structure that can lock the chain, so that the chain will not extend out of the receiving channel during transportation. At the same time, since the elongation rate of the chain is extremely small during the wheel bundling process, during long-term transportation or under bad road conditions, the chain can also maintain a tightened state, is not prone to slack or deformation, so it can greatly improve the fixing effect of the wheel, avoid the loosening or displacement of the wheel, and improve the safety of vehicle transportation.

[0014] In the above-mentioned chain-type wheel fixing device, a chain guide bracket is fixedly arranged below the bearing plate. The chain guide bracket has a vertically arranged chain guide groove. After the chain extends out of the receiving channel, it passes upward through the chain guide groove, and the sprocket is arranged on the chain guide bracket. In this structure, the vertically arranged chain guide groove on the chain guide bracket can guide the chain to extend upward above the bearing plate, so as to facilitate the bundling operation of the chain on the wheel. And since the chain passes through the chain guide groove, the chain can be limited in the chain guide groove during the moving process. In this way, not only can the chain extend or retract into the chain track more smoothly, but also the sprocket and the chain can always be stably meshed, thereby improving the stability and reliability of the wheel bundling process and further improving the fixing effect of the wheel.

[0015] In the above-mentioned chain-type wheel fixing device, a driving motor is fixedly installed on the chain guide bracket. The locking structure includes a worm coaxially and fixedly connected to the output shaft of the driving motor. A rotating shaft perpendicular to the worm is provided on the chain guide bracket, and a worm gear meshing with the worm is provided on the rotating shaft. The sprocket is fixedly sleeved on the rotating shaft. In this solution, the extension and retraction of the chain are both driven by the sprocket. Specifically, when the driving motor drives the worm to rotate forward, the sprocket can be driven to rotate forward, so that the chain extends upward. After the chain extends, it bypasses the wheel to bundle and fix the wheel. When the driving motor drives the worm to rotate reversely, the sprocket can be driven to rotate reversely, so as to realize the tightening of the chain. Moreover, after the chain is tightened, the sprocket stops rotating. At this time, the worm gear and the worm cooperate to achieve self-locking, so that even if the chain is stressed, it will not drive the worm gear to rotate. Therefore, the chain can be prevented from extending, and the chain can be kept in a tightened state, ensuring the wheel fixing effect.

[0016] In the above-mentioned chain-type wheel fixing device, a driving motor is fixedly connected to the chain guide bracket. A rotating shaft is provided on the chain guide bracket, and the output shaft of the driving motor is coaxially and fixedly connected to the rotating shaft. The locking structure includes a spring and a locking plate slidably arranged on the chain guide bracket. The spring can drive the locking plate to move towards the sprocket and make the locking plate embed into the tooth groove of the sprocket. The locking plate can also move away from the sprocket to make the locking plate disengage from the tooth groove of the sprocket. In this solution, when bundling operation is required, the locking plate is manually toggled to move away from the sprocket, so that the locking plate disengages from the tooth groove of the sprocket, and at this time the sprocket is unlocked. Then, the driving motor drives the rotating shaft and the sprocket to rotate forward, so that the chain extends upward. After the chain extends, it is bypassed around the wheel. Of course, the chain can also be pulled out manually, and at this time the sprocket and the output shaft of the driving motor rotate passively. After the chain bypasses the wheel and the end of the chain is fixed, the driving motor drives the rotating shaft and the sprocket to rotate reversely, so as to realize the tightening of the chain. After the chain is tightened, the locking plate is released. The locking plate moves towards the sprocket under the action of the spring and embeds into the tooth groove of the sprocket. At this time, the sprocket is locked, so that even if the chain is stressed, it will not drive the sprocket to rotate, thus preventing the chain from extending and keeping the chain in a tightened state, ensuring the wheel fixing effect.

[0017] In the above-mentioned chain-type wheel fixing device, a chain passing hole for the chain to pass through is formed in the bearing plate directly above the chain guide groove. The chain passing hole is located on one side of the wheel support groove, and the chain guide bracket is fixedly connected to the bottom surface of the bearing plate. The chain guide bracket is fixedly connected to the bottom surface of the bearing plate, making the installation of the chain guide bracket convenient and with good stability. When the device is not in use, the chain does not pass through the chain passing hole to achieve hiding, thus avoiding the wheel pressing on the chain, facilitating the vehicle to drive on the carrier, and protecting the chain.

[0018] In the above-mentioned chain-type wheel fixing device, the locking structure includes a fixed clamping block located on one side of the chain passing hole. A first hydraulic cylinder is provided on the other side of the chain passing hole. The end of the piston rod of the first hydraulic cylinder is fixedly connected with a movable clamping block. The first hydraulic cylinder can drive the movable clamping block to approach or move away from the fixed clamping block. After the chain is tightened, the sprocket stops rotating. At this time, the first hydraulic cylinder drives the movable clamping block to approach the fixed clamping block, so that the chain is clamped by the movable clamping block and the fixed clamping block. Even if the chain is stressed, it will not protrude from the chain track, keeping the chain in a tightened state and ensuring the wheel fixing effect.

[0019] In the above-mentioned chain-type wheel fixing device, the chain track extends circuitously in the length direction and forms an upper and lower multi-layer structure. The chain track includes a plurality of track splicing segments arranged in sequence in the up-down direction and all in a straight line shape. The track splicing segments are connected end to end in sequence. The chain track extends circuitously in the length direction and forms an upper and lower multi-layer structure. In this way, not only can a longer chain be accommodated to meet the bundling requirements in terms of the chain length, but also, since the chain track is arranged below the bearing plate, the part of the chain extending upward to the outer periphery of the wheel and the part located in the chain track, that is, the whole chain, are in a vertical plane. In this way, the smoothness of the chain movement is improved. Moreover, the straight track splicing segments make the chain located therein also in a straight line shape. In this way, on the basis of the longer chain length, the degree of its bending can be minimized as much as possible, so that the frictional resistance during the chain movement is smaller and the movement is smoother, ensuring the smooth extension of the chain. At the same time, when the sprocket rotates, it can also ensure the stable movement of the chain and its smooth retraction into the accommodation channel, and further ensure the stable tightening of the chain to bundle the wheel, improving the stability and reliability during the wheel bundling process.

[0020] In the above-mentioned chain-type wheel fixing device, the plurality of track splicing segments are respectively an upper-layer track splicing segment, a middle-layer track splicing segment and a lower-layer track splicing segment. The upper-layer track splicing segment, the middle-layer track splicing segment and the lower-layer track splicing segment are all horizontally arranged. One end of the upper-layer track splicing segment is vertically adjacent to one end of the middle-layer track splicing segment and is connected through a first arc-shaped splicing segment. The other end of the upper-layer track splicing segment is vertically adjacent to one end of the lower-layer track splicing segment and is connected through a second arc-shaped splicing segment. The parts of the accommodation channel corresponding to the first arc-shaped splicing segment and the second arc-shaped splicing segment are both arc-shaped.

[0021] By setting the first arc splicing section and the second arc splicing section, when the chain moves from the middle layer track splicing section to the upper layer track splicing section, and when the chain moves from the upper layer track splicing section to the lower layer track splicing section, the chain will pass through the arc-shaped accommodating channel. In this way, the chain can turn more smoothly, so that the chain can stably tighten and bind the wheel, improving the stability and reliability of the wheel binding process. In this structure, the chain track forms a three-layer structure up and down. In this way, on the basis of ensuring that the length of the chain meets the binding requirements, the overall height dimension of the chain track is also small, so it occupies less space and is convenient for the arrangement of the chain track on the vehicle body.

[0022] In the above-mentioned chain-type wheel fixing device, the other end of the lower layer track splicing section is connected to the lower end of the chain guide bracket, and the chain bends upward at the connection of the lower layer track splicing section and the chain guide bracket and passes through the chain guide groove. In this structure, the chain guide groove of the chain guide bracket is used to guide the chain to change direction and bend upward, enabling the chain to extend or retract from the chain track more smoothly.

[0023] In the above-mentioned chain-type wheel fixing device, support pipes are provided on the inner sides of the first arc splicing section and the second arc splicing section. The first arc splicing section and the second arc splicing section both have arc-shaped concave inner walls arranged opposite to the outer peripheral walls of the corresponding support pipes, and the chain passes between the arc-shaped concave inner walls and the outer peripheral walls of the support pipes.

[0024] The chain needs to turn at the first arc splicing section and the second arc splicing section. By setting the support pipes, the chain is limited to slide within an arc-shaped accommodating channel at this position, facilitating the smooth movement of the chain here. Especially during the process of the chain retracting into the chain track, the end of the chain can smoothly pass through this turning point, enabling the chain to be smoothly tightened, ensuring the stability and reliability of the wheel binding process, and further improving the effect of wheel fixing.

[0025] In the above-mentioned chain-type wheel fixing device, there is a gap between the upper layer track splicing section and the middle layer track splicing section, and the middle layer track splicing section and the lower layer track splicing section are in contact with each other. The gap left between the upper layer track splicing section and the middle layer track splicing section makes the bending amplitude of the first arc splicing section smaller, enabling the chain to smoothly pass through the first arc splicing section. Similarly, the chain can also smoothly pass through the second arc splicing section, ultimately enabling the chain to extend or retract from the chain track more smoothly, allowing the chain to smoothly extend or tighten, and ensuring the stability and reliability of the wheel binding process.

[0026] In the above-mentioned chain-type wheel fixing device, each track splicing section includes a long strip-shaped base plate. Long strip-shaped side plates are vertically connected to both sides of the base plate, and the side plates on both sides of the base plate are arranged opposite to each other. Each side plate has a limiting flange formed by inward bending on the side away from the base plate. The accommodating channel is formed among the base plate, the side plates and the limiting flange. This structure can limit the chain between the base plate, the side plates and the limiting flange, so that the chain can be well supported and guided, and the chain will not break out of the chain track, and at the same time, the chain can move smoothly in the chain track.

[0027] Compared with the prior art, the present chain-type wheel fixing device has the following advantages:

[0028] 1. Since the chain of the present chain-type wheel fixing device is made of metal material, the chain is not easy to be worn, deformed or broken, so it has a long service life and bundling reliability. In addition, the device is provided with a locking structure to lock the chain, so that the chain will not extend out of the accommodating channel during transportation. At the same time, since the elongation rate of the chain is extremely small during the wheel bundling process, the chain can maintain a tightened state during long-term transportation or under harsh road conditions, and is not easy to become loose or deformed. Therefore, the fixing effect of the wheel can be greatly improved, the wheel can be prevented from loosening or shifting, and the safety of automobile transportation can be improved.

[0029] 2. Adopting a chain track structure with a special structure effectively ensures the smoothness of the chain movement process, thus ensuring the smooth extension of the chain. At the same time, when the sprocket rotates, it can also ensure the stable movement of the chain and its smooth retraction into the accommodating channel, so that the chain can be stably tightened to bundle the wheel, improving the stability and reliability of the wheel bundling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structural schematic diagram of the present chain-type wheel fixing device.

[0031] Figure 2 is a sectional view of the present chain-type wheel fixing device.

[0032] Figure 3 is a three-dimensional structural schematic diagram of the chain track.

[0033] Figure 4 is a sectional view of the chain track and the chain guide bracket.

[0034] Figure 5 is a usage state diagram of the present chain-type wheel fixing device.

[0035] Figure 6 is a sectional view of the usage state of the present chain-type wheel fixing device.

[0036] Figure 7It is a schematic diagram of the locking structure in the first embodiment of the chain type wheel fixing device.

[0037] Figure 8 It is a schematic diagram of the locking structure in the second embodiment of the chain type wheel fixing device.

[0038] Figure 9 It is a schematic diagram of the locking structure in the third embodiment of the chain type wheel fixing device.

[0039] In the figure, 1, bearing plate; 1a, wheel support groove; 1b, chain hole; 2, chain track; 2a, accommodating channel; 2b, base plate; 2c, side plate; 2d, limit flange; 21, track splicing section; 211, upper track splicing section; 212, middle track splicing section; 213, lower track splicing section; 22, first arc splicing section; 23, second arc splicing section; 3, chain; 4, sprocket; 5, guide Chain bracket; 51, chain guide groove; 6, support tube; 7, drive motor; 8, rotating shaft; 9, fixed clamp block; 10, first hydraulic cylinder; 11, movable clamp block; 12, chuck; 13, locking block; 14, second hydraulic cylinder; 15, transmission box; 16, worm; 17, worm wheel; 18, spring; 19, locking plate; 191, sliding part; 192, mounting part; 20, guide groove; 21, guide hole; 22, handle. DETAILED DESCRIPTION

[0040] 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 these embodiments.

[0041] Embodiment 1

[0042] like Figure 1 and Figure 2 As shown, the chain-type wheel fixing device comprises a bearing plate 1, the top surface of the bearing plate 1 has a wheel supporting groove 1a, a chain track 2 is arranged below the bearing plate 1, the chain track 2 extends in a circuitous manner in the length direction and forms an upper and lower multi-layer structure, the chain track 2 has an accommodating channel 2a arranged along its length direction, a chain 3 is passed through the accommodating channel 2a and the chain 3 can move along its length direction, one end of the chain 3 can extend upward from the accommodating channel 2a from one side of the wheel supporting groove 1a, the bearing plate 1 is also provided with a sprocket 4 which meshes with the chain 3 and can drive the chain 3 to retract into the accommodating channel 2a, and the chain-type wheel fixing device also includes a locking structure which can lock the chain 3 when the sprocket 4 stops rotating to limit the chain 3 from extending out of the accommodating channel 2a.

[0043] like Figure 2 and Figure 3As shown, the chain track 2 is located below the wheel support groove 1a. The chain track 2 includes a plurality of track splicing segments 21 that are arranged in sequence in the up and down direction and are all linear. Each track splicing segment 21 is connected end to end in sequence. Specifically, the plurality of track splicing segments 21 are respectively an upper layer track splicing segment 211, an intermediate layer track splicing segment 212, and a lower layer track splicing segment 213. The upper layer track splicing segment 211, the intermediate layer track splicing segment 212, and the lower layer track splicing segment 213 are all horizontally arranged. One end of the upper layer track splicing segment 211 is adjacent to one end of the intermediate layer track splicing segment 212 up and down and is connected by a first arc splicing segment 22. The other end of the upper layer track splicing segment 211 is adjacent to one end of the lower layer track splicing segment 213 up and down and is connected by a second arc splicing segment 23. The parts of the accommodating channel 2a corresponding to the first arc splicing segment 22 and the second arc splicing segment 23 are both arc-shaped.

[0044] As Figure 2 and Figure 3 shown, support pipes 6 are provided on the inner sides of both the first arc splicing segment 22 and the second arc splicing segment 23. Both the first arc splicing segment 22 and the second arc splicing segment 23 have arc-shaped concave inner walls that are oppositely arranged with respect to the outer peripheral walls of the corresponding support pipes 6. The chain 3 passes through between the arc-shaped concave inner wall and the outer peripheral wall of the support pipe 6. There is a gap between the upper layer track splicing segment 211 and the intermediate layer track splicing segment 212, and the intermediate layer track splicing segment 212 and the lower layer track splicing segment 213 are in abutment.

[0045] As Figure 2 and Figure 4 shown, a chain guide bracket 5 is connected to the other end of the lower layer track splicing segment 213. The chain guide bracket 5 has a vertically arranged chain guide groove 51. The chain 3 bends upward at the connection between the lower layer track splicing segment 213 and the chain guide bracket 5 and passes through the chain guide groove 51. The sprocket 4 is arranged on the chain guide bracket 5. A chain passing hole 1b for the chain 3 to pass through is formed on the bearing plate 1 directly above the chain guide groove 51. The chain passing hole 1b is located on one side of the wheel support groove 1a, and the chain guide bracket 5 is fixedly connected to the bottom surface of the bearing plate 1.

[0046] As Figure 3 and Figure 4 shown, each track splicing segment 21 includes a strip-shaped base plate 2b. Long strip-shaped side plates 2c are vertically connected to both sides of the base plate 2b, and the side plates 2c on both sides of the base plate 2b are oppositely arranged. An inwardly bent limiting flange 2d is provided on the side of each side plate 2c away from the base plate 2b. An accommodating channel 2a is formed between the base plate 2b, the side plates 2c, and the limiting flange 2d. This structure can limit the chain 3 between the base plate 2b, the side plates 2c, and the limiting flange 2d. In this way, the chain 3 can be well supported and guided, the chain 3 will not escape from the chain track 2, and at the same time, the chain 3 can move smoothly within the chain track 2.

[0047] As Figure 1 shown, a transmission box 15 and a driving motor 7 are fixedly connected to the chain guide bracket 5. As Figure 7 shown, the locking structure includes a worm 16 coaxially and fixedly connected to the output shaft of the driving motor 7. A rotating shaft 8 perpendicular to the worm 16 is provided on the chain guide bracket 5. A worm gear 17 meshing with the worm 16 is provided on the rotating shaft 8. The sprocket 4 is fixedly sleeved on the rotating shaft 8. Both the worm 16 and the worm gear 17 are arranged in the transmission box 15.

[0048] The following introduces the usage method of this chain - type wheel fixing device:

[0049] As Figure 1 and Figure 2 shown, in the initial state, the chain 3 is within the chain track 2, and the whole chain 3 is below the bearing plate 1.

[0050] When this device is in use, as Figure 5 and Figure 6 shown, first drive the car into position so that the wheels of the car enter the wheel support groove 1a. Then, when the driving motor 7 drives the worm 16 to rotate forward, it can drive the sprocket 4 to rotate forward, so that the chain 3 extends upward from one side of the wheel support groove 1a through the chain hole 1b. After the chain 3 extends out, it bypasses the wheel, making the end of the chain 3 fall to the other side of the wheel support groove 1a. Then, the second hydraulic cylinder 14 pushes the chuck 12 to move towards the lock block 13, clamping the end of the chain 3 between the chuck 12 and the lock block 13. Of course, in addition to the above - mentioned clamping fixation for the end of the chain 3, it can also be fixed by hooking with a hook, bundling, etc.

[0051] After the end of the chain 3 is fixed, when the driving motor 7 drives the worm 16 to rotate in reverse, it drives the sprocket 4 to rotate in reverse, making the chain 3 move towards the inside of the chain track 2 for tightening. After the chain 3 is tightened, the sprocket 4 stops rotating. At this time, the worm gear 17 and the worm 16 cooperate to achieve self - locking, so that even if the chain 3 is stressed, it will not drive the worm gear 17 to rotate. Therefore, it can prevent the chain 3 from extending, keep the chain 3 in a tightened state, and ensure the wheel fixing effect.

[0052] Embodiment 2

[0053] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that: as Figure 8As shown, a driving motor 7 is fixedly connected to the chain guide bracket 5, a rotating shaft 8 is provided on the chain guide bracket 5, and the output shaft of the driving motor 7 is coaxially fixedly connected with the rotating shaft 8, and the locking structure includes a spring 18 and a locking plate 19 slidably arranged on the chain guide bracket 5, the spring 18 can drive the locking plate 19 to move toward the sprocket 4 and make the locking plate 19 embedded in the tooth groove of the sprocket 4, and the locking plate 19 can also move away from the sprocket 4 so that the locking plate 19 is disengaged from the tooth groove of the sprocket 4.

[0054] Furthermore, the chain guide bracket 5 has two side plates arranged opposite to each other and each side plate is provided with a guide slot 20, and the locking plate 19 has sliding parts 191 respectively connected to the guide slots 20 on the two side plates in a sliding manner, and one of the sliding parts 191 passes through the guide slot 20 and is fixedly sleeved with a handle 22. The chain guide bracket 5 is also provided with a guide hole 21, and the locking plate 19 has a mounting part 192 slidably penetrated in the guide hole 21, and the spring 18 is sleeved on the mounting part 192, and the two ends of the spring 18 are respectively against the chain guide bracket 5 and the locking plate 19.

[0055] When the binding operation is required, the handle 22 on the locking plate 19 is manually moved to move the locking plate 19 away from the tooth groove of the sprocket 4, and the sprocket 4 is unlocked. After that, the driving motor 7 drives the rotating shaft 8 and the sprocket 4 to rotate forward, so that the chain 3 extends upward, and the chain 3 is passed around the wheel after it is extended. Of course, the chain 3 can also be pulled out manually, and the output shaft of the sprocket 4 and the driving motor 7 is passively rotated. After the chain 3 passes around the wheel and the end of the chain 3 is fixed, the driving motor 7 drives the rotating shaft 8 and the sprocket 4 to reverse, so as to achieve the tightening of the chain 3. After the chain 3 is tightened, the locking plate 19 is released, and the locking plate 19 moves toward the sprocket 4 under the action of the spring 18 and is embedded in the tooth groove of the sprocket 4. At this time, the sprocket 4 is locked, so that even if the chain 3 is stressed, it will not drive the sprocket 4 to rotate, thereby avoiding the chain 3 from extending, so that the chain 3 is kept in a tightened state, so that the wheel fixing effect is guaranteed.

[0056] Embodiment 3

[0057] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: Figure 9 As shown, the output shaft of the driving motor 7 is coaxially fixedly connected with the rotating shaft 8, the sprocket 4 is fixedly sleeved on the rotating shaft 8, and the locking structure includes a fixed clamping block 9 located on one side of the chain hole 1b, and a first hydraulic cylinder 10 is provided on the other side of the chain hole 1b. The end of the piston rod of the first hydraulic cylinder 10 is fixedly connected with a movable clamping block 11, and the first hydraulic cylinder 10 can drive the movable clamping block 11 to move closer to or away from the fixed clamping block 9.

[0058] After the chain 3 is tightened, the sprocket 4 stops rotating. At this time, the first hydraulic cylinder 10 drives the movable clamping block 11 to approach the fixed clamping block 9, so that the chain 3 is clamped by the movable clamping block 11 and the fixed clamping block 9. Even if the chain 3 is stressed, it will not extend out of the chain track 2, keeping the chain 3 in a tightened state and ensuring the fixing effect of the wheel.

[0059] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0060] Although terms such as 1, bearing plate; 1a, wheel support groove; 1b, chain passing hole; 2, chain track; 2a, accommodation channel; 2b, base plate; 2c, side plate; 2d, limiting flange; 21, track splicing section; 211, upper track splicing section; 212, middle layer track splicing section; 213, lower track splicing section; 22, first arc splicing section; 23, second arc splicing section; 3, chain; 4, sprocket; 5, chain guide bracket; 51, chain guide groove; 6, support pipe; 7, drive motor; 8, rotating shaft; 9, fixed clamping block; 10, first hydraulic cylinder; 11, movable clamping block; 12, chuck; 13, lock block; 14, second hydraulic cylinder; 15, transmission box are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A chain-type wheel fixing device, comprising a bearing plate (1), wherein the top surface of the bearing plate (1) has a wheel support groove (1a), characterized in that, A chain track (2) is provided below the bearing plate (1), the chain track (2) having a receiving channel (2a) provided along its length direction, a chain (3) passing through the receiving channel (2a) and the chain (3) being movable along its length direction, one end of the chain (3) being able to extend upward from the receiving channel (2a) through one side of the wheel support groove (1a), the bearing plate (1) also being provided with a sprocket (4) meshing with the chain (3) and being able to drive the chain (3) to retract into the receiving channel (2a), the chain-type wheel fixing device also comprising a locking structure capable of locking the chain (3) when the sprocket (4) stops rotating to limit the chain (3) from extending out of the receiving channel (2a).

2. The chain-type wheel fixing device according to claim 1, characterized in that, A chain guide bracket (5) is fixedly arranged below the bearing plate (1), and the chain guide bracket (5) has a vertically arranged chain guide groove (51). After the chain (3) extends out of the accommodating channel (2a), it passes through the chain guide groove (51) upwards, and the sprocket (4) is arranged on the chain guide bracket (5).

3. The chain-type wheel fixing device according to claim 2, characterized in that, The chain guide bracket (5) is fixedly provided with a driving motor (7), the locking structure comprises a worm (16) coaxially fixedly connected to the output shaft of the driving motor (7), the chain guide bracket (5) is provided with a rotating shaft (8) perpendicular to the worm (16), the rotating shaft (8) is provided with a worm wheel (17) meshing with the worm (16), and the sprocket (4) is fixedly sleeved on the rotating shaft (8).

4. The chain-type wheel fixing device according to claim 2, characterized in that, The chain guide bracket (5) is fixedly connected to a driving motor (7), a rotating shaft (8) is provided on the chain guide bracket (5), and the output shaft of the driving motor (7) is coaxially fixedly connected to the rotating shaft (8), and the locking structure comprises a spring (18) and a locking plate (19) slidably arranged on the chain guide bracket (5), the spring (18) can drive the locking plate (19) to move toward the sprocket (4) and make the locking plate (19) embedded in the tooth groove of the sprocket (4), and the locking plate (19) can also move in the direction away from the sprocket (4) so ​​that the locking plate (19) is disengaged from the tooth groove of the sprocket (4).

5. The chain-type wheel fixing device according to claim 2, characterized in that, The bearing plate (1) is provided with a chain hole (1b) located just above the chain guide groove (51) for the chain (3) to pass through, the chain hole (1b) being located on one side of the wheel support groove (1a), and the chain guide bracket (5) is fixedly connected to the bottom surface of the bearing plate (1).

6. The chain-type wheel fixing device according to claim 5, characterized in that, The locking structure comprises a fixed clamping block (9) located on one side of the chain hole (1b); a first hydraulic cylinder (10) is provided on the other side of the chain hole (1b); the end of the piston rod of the first hydraulic cylinder (10) is fixedly connected to a movable clamping block (11); the first hydraulic cylinder (10) can drive the movable clamping block (11) to move closer to or away from the fixed clamping block (9).

7. The chain-type wheel fixing device according to claim 2 or 3 or 4 or 5, characterized in that, The chain track (2) extends in a circuitous manner in the length direction and forms an upper and lower multi-layer structure, and the chain track (2) comprises a plurality of track splicing sections (21) which are sequentially arranged in the upper and lower directions and are all in a straight line, and the track splicing sections (21) are sequentially connected end to end.

8. The chain-type wheel fixing device according to claim 7, characterized in that, The plurality of track splicing segments (21) are respectively an upper-layer track splicing segment (211), a middle-layer track splicing segment (212), and a lower-layer track splicing segment (213). The upper-layer track splicing segment (211), the middle-layer track splicing segment (212), and the lower-layer track splicing segment (213) are all horizontally arranged. One end of the upper-layer track splicing segment (211) is vertically adjacent to one end of the middle-layer track splicing segment (212) and is connected by a first arc-shaped splicing segment (22). The other end of the upper-layer track splicing segment (211) is vertically adjacent to one end of the lower-layer track splicing segment (213) and is connected by a second arc-shaped splicing segment (23). The parts of the accommodating channel (2a) corresponding to the first arc-shaped splicing segment (22) and the second arc-shaped splicing segment (23) are both arc-shaped.

9. The chain-type wheel fixing device according to claim 8, wherein, The other end of the lower-layer track splicing segment (213) is connected to the lower end of the chain guide bracket (5). The chain (3) bends upward at the connection of the lower-layer track splicing segment (213) and the chain guide bracket (5) and passes through the chain guide groove (51).

10. The chain-type wheel fixing device according to claim 8, characterized in that, Support pipes (6) are provided on the inner sides of the first arc-shaped splicing segment (22) and the second arc-shaped splicing segment (23). The first arc-shaped splicing segment (22) and the second arc-shaped splicing segment (23) both have arc-shaped concave inner walls arranged opposite to the outer peripheral walls of the corresponding support pipes (6). The chain (3) passes between the arc-shaped concave inner walls and the outer peripheral walls of the support pipes (6).

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