Wheel base adjusting structure of wheel fixing device

Abstract

The utility model provides a wheel base adjusting structure of a wheel fixing device, belongs to the technical field of vehicle transportation, and solves the problem that an existing wheel fixing device is poor in applicability. The axle distance adjusting structure of the wheel fixing device comprises a supporting platform, the supporting platform is provided with a lifting table, the upper surface of the supporting platform is sunken to form a guide groove, a guide pipe and a sleeve are arranged in the guide groove, the guide pipe is fixed in the guide groove, the sleeve is arranged on the guide pipe in a sliding and sleeving mode, the sleeve is fixedly connected with the lifting table, and the lifting table is fixedly connected with the supporting platform. The lifting table is connected with an oil cylinder, and the oil cylinder can drive the lifting table to move back and forth in the length direction of the guide pipe. The wheel base adjusting structure of the wheel fixing device improves the applicability of the wheel fixing device.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle transportation and relates to a wheelbase adjusting structure of a wheel fixing device. Background Art

[0002] With the improvement of living standards, cars have entered thousands of households. The places where cars are produced and sold are often different, so cars need to be transported by special vehicle towing transporters.

[0003] Vehicle towing transport vehicles mostly use a double-layer structure to transport cars, that is, an upper parking plate and a lower parking plate are set up. The upper parking plate and the lower parking plate are both support platforms. After the cars to be transported are driven onto the support platform one by one, the wheels of the cars need to be fixed so that the cars are stably fixed on the support platform.

[0004] To this end, a Chinese patent application (application number: 202010514759.7) discloses a multifunctional adjustable vehicle carrier transport vehicle, including a vehicle body and a lower parking plate, the lower parking plate includes bosses provided on both sides of the bottom, the lower parking plate is fixed to the vehicle body through the bosses, and a wheel fixing device is provided on the vehicle body, including a driving mechanism provided on the lower vehicle bottom plate and a clamping and fixing mechanism provided on the driving mechanism, the driving mechanism includes a fixed seat and a movable seat, the movable seat is provided above the fixed seat, the movable seat includes upper convex extensions provided at the four corners of the bottom, and the fixed seat includes four corners at the top. The lower convex extensions are respectively provided at the corners, and support strips are provided between the upper convex extensions and the outer sides of the corresponding lower convex extensions. The fixed seat is embedded in the boss. The clamping and fixing mechanism is specifically located on the side of the lower floor plate. The clamping and fixing mechanism includes a pillar provided on the top of the movable seat, a circular disc provided on the top of the pillar, and a flexible clamping claw provided on the circular disc. There are at least two groups of flexible clamping claws, and the multiple groups of flexible clamping claws are all centered on the center of the circular disc. The circular disc is aligned with the wheel of the vehicle; the driving mechanism drives the arc of the pillar to approach or away from the wheel of the vehicle until the multiple groups of flexible clamping claws are clamped on the wheel of the vehicle.

[0005] However, the above method has the following defects: the wheelbase between the front and rear wheels of the car is fixed, and the wheelbase of different cars is different. In the multifunctional adjustable vehicle carrying and transporting vehicle, the lower parking plate includes bosses on both sides of the bottom fixedly connected to the car body, and the clamping and fixing mechanism is arranged on the movable seat, and the movable seat is hinged to the fixed seat through a plurality of support bars, and the fixed seat is embedded in the bosses on both sides, so the clamping and fixing mechanism cannot move along the length direction of the car body, and cannot be adaptively adjusted according to the wheelbase requirements of different cars, and has poor applicability. Utility Model Content

[0006] The purpose of the utility model is to propose a wine barrel in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is: how to improve the applicability of the wheel fixing device.

[0007] The purpose of the utility model can be achieved through the following technical solutions: a wheelbase adjustment structure of a wheel fixing device, including a support platform, the support platform is provided with a lifting platform, and the upper surface of the support platform is recessed to form a guide groove, a guide tube and a sleeve are provided in the guide groove, the guide tube is fixed in the guide groove, the sleeve is slidably sleeved on the guide tube, and the sleeve is fixedly connected to the lifting platform, the lifting platform is connected to an oil cylinder, and the oil cylinder can drive the lifting platform to move back and forth along the length direction of the guide tube.

[0008] The lifting platform is used to fix the wheel. The support platform is provided with two fixed lifting platforms and two movable lifting platforms along the length direction. In actual work, the oil cylinder is operated to drive the lifting platform to move back and forth along the length direction of the guide tube. At this time, the sleeve slides back and forth along the length direction of the guide tube, and the spacing between the lifting platforms is adjusted along the length direction of the support platform to adapt to the actual wheelbase of the car to be fixed, and then the car wheel is stably and reliably fixed on the lifting platform. An inner and outer guide structure is formed between the sleeve and the guide tube, so that the lifting platform can move back and forth along the length direction of the guide tube under the action of the oil cylinder, so that the distance between the lifting platforms can be adjusted along the length direction of the car body according to the wheelbase requirements of different cars, and then the wheel is stably and reliably fixed on the lifting platform, which improves the applicability. The upper surface of the support platform is concave to form a guide groove, the guide tube is fixed in the guide groove, the sleeve is sleeved on the guide tube, and the guide structure formed by the sleeve and the guide tube is embedded in the support platform table, which effectively utilizes the space of the support platform and makes the support platform compact. The sleeve is sleeved on the guide tube, and the vibration frequency and amplitude during work are small, which is conducive to ensuring the stability of wheel fixation.

[0009] In the wheelbase adjustment structure of the wheel fixing device, the length of the sleeve is shorter than that of the guide tube, and protrusions are respectively provided at both ends of the guide groove. Both ends of the guide tube abut against the protrusions, and a clearance space is formed between the outer wall of the guide tube and the inner wall of the guide groove. The protrusion not only supports the guide tube, but also limits the sleeve. When the lifting platform moves to the limit position, the sleeve abuts against the protrusion and cannot continue to slide relative to the guide tube. The setting of the clearance space leaves room for the thermal expansion and contraction of the wheelbase adjustment structure, thereby improving the working stability.

[0010] In the wheelbase adjustment structure of the wheel fixing device, the two ends of the guide tube are respectively provided with pressure blocks, and the pressure blocks and the support platform form a fastening structure, so that the pressure blocks and the protrusions clamp the guide tube to form a fixation. The pressure blocks and the protrusions clamp the guide tube, which is conducive to stably and reliably fixing the guide tube in the guide groove, thereby improving the working stability.

[0011] In the wheelbase adjustment structure of the wheel fixing device, the upper surface of the support platform is recessed to form a fixing groove, the fixing groove is connected to the guide groove, and the groove width of the fixing groove is greater than the groove width of the guide groove, and the pressing block is fixed in the fixing groove. The pressing block is fixed in the fixing groove, that is, the pressing block does not protrude from the upper surface of the support platform, avoiding obstruction of the normal movement of the lifting platform and improving the working stability.

[0012] In the wheelbase adjustment structure of the wheel fixing device, the support platform is provided with a receiving space penetrating the support platform in the thickness direction, the guide grooves are arranged in groups of two and are connected through the receiving space, and the oil cylinder is arranged in the receiving space. The guide pipe and the sleeve are arranged in the guide groove, and the oil cylinder is arranged in the receiving space, which effectively utilizes the space of the support platform and makes the support platform structure compact.

[0013] In the wheelbase adjustment structure of the wheel fixing device, the upper surface of the lifting platform is recessed to form a limiting groove, the two side walls of the limiting groove are inclined, and the distance between the two side walls gradually increases from the bottom of the groove to the groove opening. When the car is fixed on the supporting platform, the wheel is placed in the limiting groove, the two side walls of the limiting groove are inclined, and the distance between the two side walls gradually increases from the bottom of the groove to the groove opening, which better fits the shape of the wheel and is conducive to achieving stable and reliable fixation of the car.

[0014] The wheelbase adjustment structure of the wheel fixing device is characterized in that the upper surface of the lifting platform is protruded with a plurality of annular patterns, and the center of the pattern penetrates the lifting platform along the thickness direction. The annular pattern is arranged protruding from the upper surface of the lifting platform, which effectively increases the friction force on the upper surface of the lifting platform, helps to prevent the wheel from slipping, and realizes stable and reliable fixation of the wheel. The center of the pattern penetrates the lifting platform along the thickness direction, which not only effectively reduces the dead weight of the lifting platform, making the movement more flexible and light, but also leaves a margin for the thermal expansion and contraction of the lifting platform, effectively eliminating stress.

[0015] The wheelbase adjustment structure of the wheel fixing device is provided with a telescopic belt for fixing the wheel on the support. When the car is fixed on the support platform, the wheel is placed in the limit groove, and the telescopic belt is wrapped around the wheel to achieve stable and reliable fixing of the car.

[0016] Compared with the prior art, the wheelbase adjustment structure of the wheel fixing device has the following advantages:

[0017] 1. In the wheelbase adjustment structure of the wheel fixing device, an inner and outer guide structure is formed between the sleeve and the guide tube, so that the lifting platform can move back and forth along the length direction of the guide tube under the action of the cylinder, so that the distance between the lifting platforms can be adjusted along the length direction of the car body according to the wheelbase requirements of different cars, and then the wheel can be stably and reliably fixed on the lifting platform, thereby improving applicability.

[0018] 2. In the wheelbase adjustment structure of the wheel fixing device, the upper surface of the support platform is recessed to form a guide groove, the guide tube is fixed in the guide groove, the sleeve is sleeved on the guide tube, and the guide structure formed by the sleeve and the guide tube is embedded in the support platform surface, which effectively utilizes the space of the support platform and makes the support platform structure compact.

[0019] 3. In the wheelbase adjustment structure of the wheel fixing device, the sleeve is sleeved on the guide tube, and the vibration frequency and amplitude during operation are small, which is conducive to ensuring the stability of wheel fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structure diagram of the wheelbase adjustment structure of the wheel fixing device. Figure 1 .

[0021] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 3 yes Figure 1 Cross-sectional view along direction BB.

[0023] Figure 4 This is the overall structure diagram of the wheelbase adjustment structure of the wheel fixing device. Figure 2 .

[0024] Figure 5 This is the overall structure diagram of the wheelbase adjustment structure of the wheel fixing device. Figure 3 .

[0025] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle.

[0026] In the figure, 1. support platform; 2. lifting platform; 3. guide groove; 4. guide tube; 5. sleeve; 6. cylinder; 7. bump; 8. clearance space; 9. pressure block; 10. fixing groove; 11. accommodating space; 12. limiting groove; 13. pattern; 14. telescopic belt. DETAILED DESCRIPTION

[0027] 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.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the wheelbase adjustment structure of the wheel fixing device includes a support platform 1, and lifting platforms 2 are provided at the four corners of the support platform 1. Along the length direction of the support platform 1, two lifting platforms 2 on one side are fixed on the support platform 1, and the two lifting platforms 2 on one side can move on the support platform 1.

[0030] The upper surface of the support platform 1 is concave to form a guide groove 3 and a fixed groove 10, and the two ends of the guide groove 3 are respectively provided with fixed grooves 10. The fixed groove 10 is connected to the guide groove 3, and the groove width of the fixed groove 10 is greater than the groove width of the guide groove 3. A guide tube 4 and a sleeve 5 are provided in the guide groove 3. The sleeve 5 is slidably sleeved on the guide tube 4. The length of the sleeve 5 is shorter than the length of the guide tube 4, and a clearance space 8 is formed between the outer wall of the guide tube 4 and the inner wall of the guide groove 3. The two ends of the guide tube 4 are respectively against the protrusion 7, and the two ends of the guide tube 4 are respectively provided with a pressing block 9, which is fixed in the fixed groove 10, and the pressing block 9 and the protrusion 7 clamp the guide tube 4 to form a fixation. The pressing block 9 and the protrusion 7 clamp the guide tube 4, which is conducive to stably and reliably fixing the guide tube 4 in the guide groove 3. The pressing block 9 is fixed in the fixed groove 10, that is, the pressing block 9 does not protrude from the upper surface of the support platform 1, so as to avoid hindering the normal movement of the lifting platform 2. The protrusion 7 not only supports the guide tube 4, but also limits the sleeve 5. When the lifting platform 2 moves to the limit position, the sleeve 5 abuts against the protrusion 7 and cannot continue to slide relative to the guide tube 4. The setting of the clearance space 8 leaves room for the thermal expansion and contraction of the wheelbase adjustment structure. In summary, the wheelbase adjustment structure of the wheel fixing device has high working stability.

[0031] The support platform 1 is provided with a receiving space 11 that penetrates the support platform 1 in the thickness direction. The guide grooves 3 are arranged in pairs and are connected through the receiving space 11. A cylinder 6 is provided in the receiving space 11. The lifting platform 2 is respectively connected to the sleeve 5 and the receiving space 11. The cylinder 6 can drive the lifting platform 2 to move back and forth along the length direction of the guide tube 4. The guide tube 4 and the sleeve 5 are arranged in the guide groove 3, and the cylinder 6 is arranged in the receiving space 11, which effectively utilizes the space of the support platform 1 and makes the support platform 1 compact.

[0032] The lifting platform 2 is provided with a retractable belt 14 for fixing the wheel, and the upper surface of the lifting platform 2 is concave to form a limiting groove 12, the two side walls of the limiting groove 12 are inclined, and the distance between the two side walls gradually increases from the bottom of the groove to the groove. The two side walls of the limiting groove 12 are inclined, and the distance between the two side walls gradually increases from the bottom of the groove to the groove, which better fits the shape of the wheel. When the car is fixed on the supporting platform 1, the wheel is placed in the limiting groove 12, and the retractable belt 14 is wrapped around the wheel, together to achieve stable and reliable fixation of the car.

[0033] Several annular patterns 13 protrude from the upper surface of the lifting platform 2, and the center of the pattern 13 penetrates the lifting platform 2 along the thickness direction. The annular pattern 13 protrudes from the upper surface of the lifting platform 2, which effectively increases the friction force on the upper surface of the lifting platform 2, helps prevent the wheel from slipping, and achieves stable and reliable fixation of the wheel. The center of the pattern 13 penetrates the lifting platform 2 along the thickness direction, which not only effectively reduces the dead weight of the lifting platform 2, making the movement more flexible and light, but also leaves a margin for the thermal expansion and contraction of the lifting platform 2, effectively eliminating stress.

[0034] In actual work, the oil cylinder 6 is controlled to drive the lifting platform 2 to move back and forth along the length direction of the guide tube 4. At this time, the sleeve 5 slides back and forth along the length direction of the guide tube 4, and the distance between the lifting platforms 2 is adjusted along the length direction of the support platform 1 to adapt to the actual wheelbase of the car to be fixed. The wheel of the car is placed in the limit groove 12, and the telescopic belt 14 is wrapped around the wheel to achieve stable and reliable fixation of the car.

[0035] The guide structure of inner and outer sleeves 5 and guide tube 4 is formed between the sleeve 5 and the guide tube 4, so that the lifting platform 2 can move back and forth along the length direction of the guide tube 4 under the action of the oil cylinder 6, so that the distance between the lifting platforms 2 can be adjusted along the length direction of the car body according to the wheelbase requirements of different cars, and then the wheel is stably and reliably fixed on the lifting platform 2, which improves the applicability. The upper surface of the support platform 1 is concave to form a guide groove 3, the guide tube 4 is fixed in the guide groove 3, the sleeve 5 is sleeved on the guide tube 4, and the guide structure formed by the sleeve 5 and the guide tube 4 is embedded in the surface of the support platform 1, which effectively utilizes the space of the support platform 1 and makes the support platform 1 compact. The sleeve 5 is sleeved on the guide tube 4, and the vibration frequency and amplitude during operation are small, which is conducive to ensuring the stability of wheel fixation.

[0036] Although this article uses more terms such as support platform 1, lifting platform 2, guide groove 3, guide tube 4, sleeve 5, oil cylinder 6, convex block 7, clearance space 8, pressing block 9, fixing groove 10, accommodating space 11, limiting groove 12, pattern 13, and telescopic belt 14, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A wheelbase adjustment structure of a wheel fixing device, comprising a support platform (1), characterized in that: The support platform (1) is provided with a lifting platform (2), and the upper surface of the support platform (1) is recessed to form a guide groove (3), a guide tube (4) and a sleeve (5) are provided in the guide groove (3), the guide tube (4) is fixed in the guide groove (3), the sleeve (5) is slidably sleeved on the guide tube (4), and the sleeve (5) is fixedly connected to the lifting platform (2), and the lifting platform (2) is connected to an oil cylinder (6), and the oil cylinder (6) can drive the lifting platform (2) to move back and forth along the length direction of the guide tube (4).

2. The wheelbase adjustment structure of the wheel fixing device according to claim 1, characterized in that: The length of the sleeve (5) is shorter than that of the guide tube (4); protrusions (7) are respectively provided at both ends of the guide groove (3); both ends of the guide tube (4) respectively abut against the protrusions (7); and a clearance space (8) is formed between the outer wall of the guide tube (4) and the inner wall of the guide groove (3).

3. The wheelbase adjustment structure of the wheel fixing device according to claim 2, characterized in that: The two ends of the guide tube (4) are respectively provided with a pressing block (9), and the pressing block (9) and the supporting platform (1) form a fastening structure, so that the pressing block (9) and the protrusion (7) clamp the guide tube (4) to form a fixation.

4. The wheelbase adjustment structure of the wheel fixing device according to claim 3, characterized in that: The upper surface of the support platform (1) is recessed to form a fixing groove (10), the fixing groove (10) is connected to the guide groove (3), and the groove width of the fixing groove (10) is greater than the groove width of the guide groove (3), and the pressing block (9) is fixed in the fixing groove (10).

5. The wheelbase adjustment structure of a wheel fixing device according to claim 1, 2, 3 or 4, characterized in that: The support platform (1) is provided with a receiving space (11) penetrating the support platform (1) in the thickness direction; the guide grooves (3) are arranged in groups of two and are connected through the receiving space (11); and the oil cylinder (6) is arranged in the receiving space (11).

6. The wheelbase adjustment structure of the wheel fixing device according to claim 5, characterized in that: The upper surface of the lifting platform (2) is recessed to form a limiting groove (12), the two side walls of the limiting groove (12) are inclined, and the distance between the two side walls gradually increases from the groove bottom to the groove mouth.

7. The wheelbase adjustment structure of the wheel fixing device according to claim 6, characterized in that: A plurality of annular patterns (13) are protruding from the upper surface of the lifting platform (2), and the center of the pattern (13) passes through the lifting platform (2) along the thickness direction.

8. The wheelbase adjustment structure of the wheel fixing device according to claim 7, characterized in that: The lifting platform (2) is provided with a telescopic belt (14) for fixing the wheels.

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