A tire pressure detection device for automobile mechanical maintenance

Abstract

The application relates to a tire pressure detection device for automobile mechanical maintenance, which comprises a base, arc-shaped plates movably arranged on the two sides of a top plate above the base, a tire pressure detector fixedly arranged at the top of one arc-shaped plate, a guide rod slidingly connected in a guide groove opened in the opposite side of the two arc-shaped plates, a first elastic member arranged between one end of the guide rod and the guide groove, a rolling clamping piece arranged at the other end of the guide rod, a plurality of positioning clamping grooves arranged on the groove wall of the guide groove, a positioning assembly arranged on the guide rod, and the positioning assembly matched with the positioning clamping grooves to position the guide rod and adjust the clamping force. The first elastic member and the positioning structure are arranged to adjust the clamping force of the tire, the tire can be firmly locked by heavy clamping to ensure stable and reliable inflation detection, and the tire can be easily rotated for comprehensive inspection and valve core positioning by light clamping, the tire does not need to be loosened and clamped again, and flexible rotation of the tire and change of the clamping position can be realized in the clamping state.

Description

Technical Field

[0001] This invention relates to the field of automotive repair technology, and in particular to a tire pressure testing device for automotive mechanical repair. Background Technology

[0002] In automotive repair and tire maintenance, tire pressure testing is a routine and necessary procedure after tire removal. During tire pressure testing, technicians typically need to first secure the tire in the testing station and rotate the valve stem to a position suitable for connecting to the inflation device. They then perform the pressure measurement, inflation, deflation, and pressure holding operations. Before and after these operations, a comprehensive inspection of the tire tread and sidewalls is necessary to identify potential safety hazards such as punctures, cuts, bulges, and cracks. Therefore, reliable tire securing and an unobstructed full-circumference inspection are two fundamental and essential operational requirements during tire pressure testing.

[0003] Existing devices typically use two clamping plates on a mounting base to hold and fix the tire's outer circumference by moving the clamping plates in opposite directions. While this method effectively secures the tire, the clamping position remains fixed relative to the tire's sidewall, completely obscuring the contact area and preventing visual inspection by maintenance personnel, creating a blind spot. To inspect the previously clamped area, the operator must release and re-clamp. Therefore, this method also has the following drawbacks: it cannot allow for flexible tire rotation while clamped, preventing the valve stem from quickly aligning with the testing connector and changing the clamping position simultaneously for circumferential tire inspection. Based on these issues, a tire pressure testing device for automotive mechanical repair is proposed. Summary of the Invention

[0004] This invention provides a tire pressure testing device for automotive mechanical repair, which solves the problem mentioned in the above-mentioned technical background that existing testing devices cannot achieve flexible rotation of the tire while clamped, so that the valve stem can be quickly aligned with the testing connector, and the clamping position can be changed while rotating to facilitate a full tire inspection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a tire pressure testing device for automotive mechanical repair, comprising a base, a top plate above the base, and movably mounted arc-shaped plates on both sides of the top of the top plate. A drive mechanism for synchronously and in opposite directions of the two arc-shaped plates is provided within the top plate. A tire pressure testing device is fixedly mounted on the top of one of the arc-shaped plates. Guide grooves are formed on opposite sides of the two arc-shaped plates. A guide rod is slidably connected within the guide groove. A first elastic element is fixedly provided between the guide rod and the guide groove. The two ends of the first elastic element are respectively fixedly connected to the inner wall of the guide groove and the end of the guide rod. One end of the guide rod extends outward and is fixedly connected to a rolling clamping element. Multiple positioning slots are spaced apart on the groove wall of the guide groove. The multiple positioning slots are arranged along the sliding path of the guide groove. A positioning component that cooperates with the positioning slot is provided on the guide rod. When the positioning component moves to the position of the positioning slot, the positioning component engages with the positioning slot to position the sliding stroke of the guide rod, thereby adjusting the clamping force.

[0006] Preferably, the positioning component includes a positioning seat fixedly mounted on a guide rod, with symmetrical grooves on both sides of the positioning seat, a second elastic element fixedly mounted in the groove, and a wedge block fixedly mounted at the end of the second elastic element, the wedge block being engaged in the positioning groove under the action of the second elastic element.

[0007] Preferably, the guide groove is provided with an initial position slot, a light clamping slot, and a heavy clamping slot in sequence from the outside to the inside along the sliding path; wherein, the initial position slot corresponds to the initial position of the guide rod, the light clamping slot corresponds to the first sliding stroke position of the guide rod, and the heavy clamping slot corresponds to the second sliding stroke position of the guide rod, and the second sliding stroke is greater than the first sliding stroke.

[0008] Preferably, an indicator light is fixedly provided on the top of the arc-shaped plate, and a contact switch is provided in the light clamping slot and the heavy clamping slot respectively. The contact switch is electrically connected to the indicator light. When the wedge block is engaged in the light clamping slot or the heavy clamping slot, the corresponding contact switch is triggered to control the indicator light to display the corresponding clamping state.

[0009] Preferably, two rolling clamps are symmetrically arranged on each side of the arc plate, and the two rolling clamps are spaced apart along the arc direction of the arc plate.

[0010] Preferably, the rolling clamping member includes a rotating seat fixedly disposed at the end of the guide rod, a roller is rotatably connected to the rotating seat, and the surface of the roller is provided with anti-slip texture.

[0011] Preferably, a rotating column is rotatably connected to the top center of the top plate, and a placement seat is fixedly provided on the top of the rotating column.

[0012] Preferably, the driving mechanism includes a driving groove formed in the top plate, a bidirectional lead screw rotatably connected in the driving groove, movable seats rotatably connected to both sides of the bidirectional lead screw, a first through groove connected to the driving groove on both sides of the top of the top plate, and the top of the movable seat passing through the first through groove and fixedly connected to the arc-shaped plate.

[0013] Preferably, the bottom of the top plate has a second through slot on both sides that communicates with the drive slot, the bottom of the movable seat passes through the second through slot and is hinged with a scissor arm, the two scissor arms are arranged in a cross configuration, and the other ends of the two scissor arms are hinged to the top sides of the base.

[0014] The beneficial effects of the tire pressure testing equipment for automotive mechanical repair of the present invention are as follows: This invention, by setting a first elastic element, a positioning groove, and a positioning component between the rolling clamp and the arc-shaped plate, allows the clamping force of the rolling clamp on the tire to be adjusted as needed. When it is necessary to adjust the tire position or perform a comprehensive inspection, the clamping force can be adjusted to a smaller state, at which point the tire can rotate under slight constraint. This not only allows the valve stem to quickly align with the test connector, but also, because the rolling clamp and the tire sidewall are in rolling contact, the rolling element rotates along with the tire as it rotates, and the clamping point moves continuously on the tire sidewall, automatically exposing the area that was originally clamped and obscured after the tire rotates. When it is necessary to perform inflation testing, the clamping force can be adjusted to a larger state to firmly lock the tire, ensuring stable and reliable inflation testing. This invention not only enables flexible tire rotation and quick alignment of the valve stem with the test connector, but also allows the clamping position to be changed during rotation, facilitating a comprehensive inspection of the tire before and after tire pressure testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a front view schematic diagram of the connection structure between the arc-shaped plate and the rolling clamping member of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a top view schematic diagram of the connection structure between the arc-shaped plate and the rolling clamping member of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 This is a top view of the arc-shaped plate and the rolling clamping component of the present invention.

[0016] In the diagram: 1. Base, 2. Top plate, 3. Arc plate, 4. Guide groove, 5. Guide rod, 6. First elastic element, 7. Rolling clamping element, 701. Rotating seat, 702. Roller, 8. Positioning slot, 801. Initial position slot, 802. Light clamping slot, 803. Heavy clamping slot, 9. Tire pressure gauge, 10. Positioning seat, 11. Slide groove, 12. Second elastic element, 13. Wedge block, 14. Indicator light, 15. Contact switch, 16. Rotating column, 17. Placement seat, 18. Drive groove, 19. Bidirectional lead screw, 20. Moving seat, 21. First through groove, 22. Second through groove, 23. Scissor arm. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] like Figures 1-6 As shown, a tire pressure monitoring device for automotive mechanical repair includes a base 1, a top plate 2 above the base 1, and two movably movably curved plates 3 on the top sides of the top plate 2. A drive mechanism for synchronously and counter-moving the two curved plates 3 is provided within the top plate 2. A tire pressure gauge 9 is fixedly mounted on the top of one side of the curved plate 3. Guide grooves 4 are formed on opposite sides of the two curved plates 3. Guide rods 5 are slidably connected within the guide grooves 4. A first elastic element 6 is fixed between the guide rod 5 and the guide groove 4. The first elastic element 6 has two... The guide rod 5 is fixedly connected to the inner wall of the guide groove 4 and the end of the guide rod 5 respectively. One end of the guide rod 5 extends outward and is fixedly connected to a rolling clamping member 7. Multiple positioning slots 8 are spaced apart on the groove wall of the guide groove 4. The multiple positioning slots 8 are arranged along the sliding path of the guide groove 4. The guide rod 5 is provided with a positioning component that cooperates with the positioning slot 8. When the positioning component moves to the position of the positioning slot 8, the positioning component engages with the positioning slot 8 to position the sliding stroke of the guide rod 5 and adjust the clamping force.

[0019] The positioning assembly includes a positioning seat 10 fixedly mounted on a guide rod 5. The positioning seat 10 has symmetrically arranged grooves 11 on both sides. A second elastic element 12 is fixedly mounted in the groove 11. A wedge block 13 is fixedly mounted at the end of the second elastic element 12. The wedge block 13 is engaged in the positioning slot 8 under the action of the second elastic element 12. The ends of the wedge block 13 are all inclined to facilitate its disengagement from the positioning slot 8.

[0020] When the arc plate 6 moves, it drives the rolling clamp 7 to move and clamp and fix the tire. The rolling clamp 7 gradually contacts the tire and drives the guide rod 5 to slide along the guide groove 4. The positioning seat 10 moves accordingly. When the positioning seat 10 slides to the position of the positioning slot 8, the wedge block 13 is facing the opening of the positioning slot 8. Under the elastic force of the second elastic member 12, it automatically springs into the positioning slot 8. By automatically engaging with different positioning slots 8, the guide rod 5 can accurately stop at the preset position, corresponding to different clamping forces.

[0021] Both the first elastic element 6 and the second elastic element 12 are springs. The elastic stiffness of the first elastic element 6 is greater than that of the second elastic element 12, and the elastic force of the first elastic element 6 in the light clamping state is greater than the maximum elastic force of the second elastic element 12. This ensures that the rolling clamping member 7 can reliably clamp the tire, ensuring that the clamping function takes precedence over the positioning function. Furthermore, the elastic force of the first elastic element 6 is greater than the wedge block 13 disengagement resistance generated by the second elastic element 12, so as to achieve automatic reset of the guide rod 5 when it is not under force.

[0022] The guide groove 4 is provided with an initial position slot 801, a light clamping slot 802, and a heavy clamping slot 803 sequentially arranged from the outside to the inside along the sliding path. The initial position slot 801 corresponds to the initial position of the guide rod 5, the light clamping slot 802 corresponds to the first sliding stroke position of the guide rod 5, and the heavy clamping slot 803 corresponds to the second sliding stroke position of the guide rod 5, with the second sliding stroke being greater than the first sliding stroke. By limiting the spring compression through the positioning slots 8, the clamping force of the light and heavy clamps is precisely controlled, avoiding over-clamping or under-clamping due to uneven operating force, which could affect the rotation and fixation of the tire.

[0023] An indicator light 14 is fixedly installed on the top of the arc-shaped plate 3. A contact switch 15 is respectively installed in the light clamping slot 802 and the heavy clamping slot 803. The contact switch 15 is a micro switch or a proximity switch, which is installed on the bottom or side wall of the light clamping slot 802 and the heavy clamping slot 803. The contact switch 15 is electrically connected to the indicator light 14 through a wire. When the wedge block 13 is engaged in the light clamping slot 802 or the heavy clamping slot 803, the corresponding contact switch 15 is triggered, which controls the indicator light 14 to display the corresponding clamping state. The indicator light 14 is preferably a dual-color LED indicator or two independent indicator lights (such as one green and one red) to facilitate the operator to intuitively understand the working mode of the equipment.

[0024] Two rolling clamping members 7 are symmetrically arranged on each side of the arc plate 3. The two rolling clamping members 7 are arranged at intervals along the arc direction of the arc plate 3. The two rolling clamping members 7 on each side and the two rolling clamping members 7 on the other side together form a four-point clamping, so that the tire is subjected to uniform force, stable and reliable in the clamping state. In addition, the two rolling clamping members 7 on each side distribute the clamping force to two different positions on the tire sidewall. Under the same total clamping force, the contact pressure between each rolling clamping member 7 and the tire is halved, avoiding the problem that the clamping force is concentrated at one point in the single roller scheme, which may cause local deformation or damage to the tire sidewall.

[0025] The rolling clamping component includes a rotating seat 701 fixedly disposed at the end of the guide rod 5. A roller 702 is rotatably connected to the rotating seat 701, and the surface of the roller 702 is provided with anti-slip texture. The roller 702 has a metal core and a polyurethane outer layer structure, which ensures the strength of the roller 702 and provides a good anti-slip effect.

[0026] A rotating column 16 is rotatably connected to the top center of the top plate 2. A placement seat 17 is fixedly provided on the top of the rotating column 16. A mounting hole is opened in the middle of the top of the top plate 2. The rotating column 16 is rotatably installed in the mounting hole through a bearing, so that the rotating column 16 can rotate freely around its own axis. The placement seat 17 is fixedly set on the top of the rotating column 16. The placement seat 17 is used to support the tire to be tested. Its shape is preferably circular, and its diameter is slightly smaller than that of the tire, so that the tire remains stable when placed on it. The upper surface of the placement seat 17 is provided with an anti-slip structure, so that there is no relative sliding between the tire and the placement seat 17 when the tire rotates, avoiding friction and wear between the two when the tire is directly placed on the top plate and rotating. At the same time, it can also reduce the frictional resistance during rotation.

[0027] The driving mechanism includes a driving groove 18 formed in the top plate 2, a bidirectional lead screw 19 rotatably connected in the driving groove 18, a driving motor fixedly mounted on one side of the top plate 2, one end of the bidirectional lead screw 19 penetrating the side wall of the top plate 2 and fixedly connected to the output shaft of the driving motor, and movable seats 20 rotatably connected to both sides of the bidirectional lead screw 19. The top of the top plate 2 has a first through groove 21 communicating with the driving groove 18, and the top of the movable seat 20 penetrates the first through groove 21 and is fixedly connected to the arc plate 3.

[0028] The drive motor drives the bidirectional lead screw 19 to rotate, and the rotation of the bidirectional lead screw 19 causes the moving seats 20 on both sides to move towards each other, thereby driving the arc plate 3 and the rolling clamping member 7 to move and clamp and fix the tire on the placement seat 17.

[0029] The bottom of the top plate 2 has a second through slot 22 on both sides that communicates with the drive slot 18. The bottom of the movable seat 20 passes through the second through slot 22 and is hinged with a scissor arm 23. The two scissor arms 23 are arranged in a cross shape, and the other end of the two scissor arms 23 is hinged to the top of the base 1 on both sides. The two sets of scissor arms 23 are not fixedly hinged at the intersection point: one scissor arm 23 has an elongated oval movable slot at the intersection position, and the other second scissor arm 23 is fixedly installed with a sliding pin at this position. The sliding pin passes into the movable slot and can move horizontally along the slot and rotate relative to it.

[0030] As the moving seat 20 rotates with the bidirectional lead screw 19, it drives the arc plate 3 to move and clamp the tire. At the same time, the moving seat 20 drives one end of the bottom scissor arm 23 to move towards each other, so that the included angle between the two scissor arms 23 decreases and the height of the top plate 2 increases. This makes the top plate lower when the tire is moved onto or removed from the top plate. When the tire is fixed and inflation is tested, the tire moves upward to a suitable operating height.

[0031] In use, the tire requiring tire pressure testing is placed on the placement seat 17. The drive motor drives the double-sided lead screw 19 to rotate, which in turn causes the movable seats 20 on the double-sided lead screw 19 to move towards each other. On one hand, this causes the scissor arm 23 to move, raising the top plate 2 for easier inspection by the operator. On the other hand, the movable seats 20 simultaneously move the arc plate 3 and the rolling clamp 7 towards the tire on the placement seat 17. The rolling clamp 7 gradually comes into contact with the tire and drives the guide rod 5 to slide along the guide groove 4. The positioning seat 10 moves accordingly. When the positioning seat 10 moves to the light clamp slot 80... At position 2, indicator light 14 displays the corresponding color to indicate to the operator that the light clamping state has been reached. At this time, the tire can be rotated to check the circumference of the tire and eliminate potential safety hazards. The tire valve is then rotated to the tire pressure gauge 9. The arc plate 3 is then moved. When the positioning seat 10 moves to the heavy clamping slot 803, indicator light 14 displays the corresponding color to indicate to the operator that the heavy clamping state has been reached. At this time, the tire is completely fixed. The connector on the tire pressure gauge 9 is connected to the valve to perform tire pressure testing and inflation operations, ensuring stability and reliability during the testing operation.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tire pressure testing device for automotive mechanical repair, characterized in that: The device includes a base, a top plate on top of the base, and two movably mounted arc-shaped plates on the top of the top plate. A drive mechanism is installed within the top plate for the synchronous and counter-moving of the two arc-shaped plates. A tire pressure gauge is fixedly mounted on the top of one of the arc-shaped plates. Guide grooves are formed on opposite sides of the two arc-shaped plates. A guide rod is slidably connected within the guide groove. A first elastic element is fixed between the guide rod and the guide groove. The two ends of the first elastic element are fixedly connected to the inner wall of the guide groove and the end of the guide rod, respectively. One end of the guide rod extends outward and is fixedly connected to a rolling clamping element. Multiple positioning slots are spaced apart on the groove wall of the guide groove, arranged along the sliding path of the guide groove. A positioning component is provided on the guide rod to cooperate with the positioning slot. When the positioning component moves to the position of the positioning slot, the positioning component engages with the positioning slot to position the sliding stroke of the guide rod and adjust the clamping force.

2. The tire pressure testing equipment for automotive mechanical repair according to claim 1, characterized in that: The positioning component includes a positioning seat fixed on a guide rod. The positioning seat has symmetrical grooves on both sides. A second elastic element is fixed in the groove. A wedge block is fixed at the end of the second elastic element. The wedge block is engaged in the positioning groove under the action of the second elastic element.

3. The tire pressure testing equipment for automotive mechanical repair according to claim 2, characterized in that: The guide groove is provided with an initial position slot, a light clamping slot, and a heavy clamping slot in sequence from the outside to the inside along the sliding path; wherein, the initial position slot corresponds to the initial position of the guide rod, the light clamping slot corresponds to the first sliding stroke position of the guide rod, and the heavy clamping slot corresponds to the second sliding stroke position of the guide rod, and the second sliding stroke is greater than the first sliding stroke.

4. The tire pressure testing equipment for automotive mechanical repair according to claim 3, characterized in that: An indicator light is fixedly installed on the top of the arc-shaped plate. A contact switch is installed in the light clamping slot and the heavy clamping slot respectively. The contact switch is electrically connected to the indicator light. When the wedge block is engaged in the light clamping slot or the heavy clamping slot, the corresponding contact switch is triggered to control the indicator light to display the corresponding clamping state.

5. The tire pressure testing equipment for automotive mechanical repair according to claim 1, characterized in that: Two rolling clamps are symmetrically arranged on each side of the arc plate, and the two rolling clamps are spaced apart along the arc direction of the arc plate.

6. The tire pressure testing equipment for automotive mechanical repair according to claim 5, characterized in that: The rolling clamping component includes a rotating seat fixedly disposed at the end of the guide rod, on which a roller is rotatably connected, and the surface of the roller is provided with an anti-slip texture.

7. The tire pressure testing equipment for automotive mechanical repair according to claim 1, characterized in that: A rotating column is rotatably connected to the top center of the top plate, and a placement seat is fixedly provided on the top of the rotating column.

8. The tire pressure testing equipment for automotive mechanical repair according to claim 1, characterized in that: The driving mechanism includes a driving groove opened in the top plate, a bidirectional lead screw rotatably connected in the driving groove, and movable seats rotatably connected to both sides of the bidirectional lead screw. The top of the top plate has a first through groove that communicates with the driving groove, and the top of the movable seat passes through the first through groove and is fixedly connected to the arc-shaped plate.

9. A tire pressure testing device for automotive mechanical repair according to claim 8, characterized in that: The bottom of the top plate has a second through slot on both sides that communicates with the drive slot. The bottom of the movable seat passes through the second through slot and is hinged with a scissor arm. The two scissor arms are arranged in a cross configuration, and the other ends of the two scissor arms are hinged to the top two sides of the base.

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