Retainer with telescopic adjustment mechanism
Patent Information
- Application Number
- CN202620106642.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-27
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2036-01-27
AI Technical Summary
现有止退器多为固定尺寸结构，难以适配不同规格轮胎的止退需求，通用性较差，面对大型货车、小型轿车等不同车型时需更换对应设备，增加使用成本与操作麻烦，同时，传统止退器的止退块多通过螺栓等紧固件固定，安装拆卸步骤繁琐，当止退块因长期摩擦出现磨损后，更换过程耗时费力，影响作业效率
本实用新型通过手推车架、固定方管、滑动方管的配合，实现了两个止退块之间间距的灵活调节，能够适应不同尺寸轮胎的止退需求，同时借助L形卡块、L形卡槽、联动复位组件以及快拆控制组件，可快速完成止退块的安装与拆卸，便于对磨损的止退块进行更换，操作便捷高效，且联动复位组件中的扭簧能够确保L形卡块稳定卡接在L形卡槽内，保证了止退块安装后的稳固性，而止退块采用橡胶材质并设有防滑槽，能够有效增强使用状态下与轮胎之间的摩擦力，提升了止退效果。
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Figure CN224898801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle auxiliary equipment technology, and in particular to a backstop with a telescopic adjustable mechanism. Background Technology
[0002] In vehicle maintenance and parking scenarios, tire stoppers are crucial devices for ensuring vehicle stability and preventing accidental slippage. Existing stoppers are mostly of fixed sizes, making it difficult to adapt to the stopping needs of different tire sizes, resulting in poor versatility. When dealing with different vehicle types such as large trucks and small cars, corresponding devices must be replaced, increasing usage costs and operational inconvenience. Furthermore, traditional stoppers often use bolts or other fasteners to fix the stop blocks, making installation and disassembly cumbersome. When the stop blocks wear down due to long-term friction, replacement is time-consuming and labor-intensive, impacting operational efficiency.
[0003] Therefore, this utility model proposes a backstop with a telescopic adjustable mechanism to solve the above problems.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings mentioned in the background section by providing a backstop with an adjustable telescopic mechanism.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a backstop with a telescopic adjustable mechanism, comprising: A handcart frame, wherein a fixed square tube is hingedly mounted on the handcart frame, and a sliding square tube is axially slidably mounted inside the fixed square tube; Two mounting boxes are fixedly installed on the fixed square tube and the sliding square tube, respectively. Four L-shaped clips are provided. Each of the two mounting boxes has two rectangular openings. The four L-shaped clips are slidably installed in the corresponding rectangular openings, and the two L-shaped clips on the same mounting box are arranged symmetrically. Two linkage reset components are respectively installed on the corresponding mounting boxes and connected to the corresponding two L-shaped blocks; Two quick-release control components are respectively mounted on their respective mounting boxes and connected to their respective linkage reset components; Two anti-reverse blocks are provided, each with an embedded mounting base. Each mounting base has two L-shaped slots for adapting to L-shaped blocks. The two anti-reverse blocks are respectively mounted on their respective mounting boxes via the corresponding L-shaped blocks and slots.
[0007] Preferably, the linkage reset assembly includes two transverse toothed plates, a gear, and a T-shaped shaft. The same T-shaped shaft is rotatably mounted on the inner walls of both sides of the mounting box. A gear is fixedly sleeved on the T-shaped shaft. Transverse toothed plates are fixedly mounted on both L-shaped blocks. The two transverse toothed plates mesh with the gear from above and below, respectively.
[0008] Preferably, the linkage reset assembly further includes a torsion spring, one end of the T-shaped shaft extends outside the mounting box and is fixedly mounted with the torsion spring, the torsion spring is movably sleeved on the outside of the T-shaped shaft and fixedly connected to the mounting box.
[0009] Preferably, the quick-release control assembly includes a pressure plate and a vertical toothed plate. A vertical toothed plate that meshes with a gear is slidably installed on the top side of the inner wall of the mounting box. The top of the vertical toothed plate extends to the top of the mounting box and is fixedly installed with the pressure plate.
[0010] Preferably, a limiting groove is formed on the top inner wall of the fixed square tube, the front end of the limiting groove penetrates the fixed square tube, and a limiting block is fixedly installed on the top front end of the sliding square tube, and the limiting block is slidably installed in the limiting groove.
[0011] Preferably, a handle is fixedly installed at the rear end of the top side of the sliding square tube.
[0012] Preferably, the anti-slip block is made of rubber, and multiple anti-slip grooves are provided on both inclined surfaces of the anti-slip block.
[0013] Preferably, two hinge seats are fixedly installed on the top side of the handcart frame, and two hinge blocks are fixedly installed on the fixed square tube, which are respectively hinged to the corresponding hinge seats. When the bottom side of the hinge block abuts against the top side of the handcart frame, the two anti-reverse blocks are in an unfolded state ready for use.
[0014] Preferably, two guide rods located on the same axis are fixedly installed on the inner wall of the mounting box, and the two guide rods are slidably connected to the corresponding L-shaped blocks.
[0015] The beneficial effects of this utility model are: This invention utilizes a handcart frame, a fixed square tube, and a sliding square tube to achieve flexible adjustment of the distance between two anti-rollover blocks, adapting to the anti-rollover requirements of tires of different sizes. Simultaneously, with the aid of L-shaped locking blocks, L-shaped slots, a linkage reset assembly, and a quick-release control assembly, the anti-rollover blocks can be quickly installed and removed, facilitating the replacement of worn anti-rollover blocks. The operation is convenient and efficient. Furthermore, the torsion spring in the linkage reset assembly ensures that the L-shaped locking blocks are stably engaged in the L-shaped slots, guaranteeing the stability of the anti-rollover blocks after installation. The anti-rollover blocks are made of rubber and have anti-slip grooves, effectively enhancing the friction between the anti-rollover blocks and the tire during use, thus improving the anti-rollover effect. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of a backstop device with a telescopic adjustable mechanism proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure from another perspective; Figure 3 This is a partial cross-sectional view of the present invention. Figure 4 for Figure 3 A schematic diagram of a partial three-dimensional structure; Figure 5 This is a three-dimensional structural diagram of the sliding square tube, handle, limiting block, and one of the mounting box parts proposed in this utility model; Figure 6 This is a three-dimensional structural diagram of the fixed square tube, hinge block, limiting groove, and another mounting box part proposed in this utility model; Figure 7 This is a cross-sectional view of the mounting base proposed in this utility model. Figure 8 This is a three-dimensional structural diagram of the anti-reverse block, mounting base, and mounting box components proposed in this utility model.
[0018] In the diagram: 1. Handcart frame; 2. Fixed square tube; 21. Sliding square tube; 211. Limiting block; 212. Handle; 3. Mounting box; 31. L-shaped locking block; 311. Guide rod; 32. Horizontal toothed plate; 33. Gear; 331. T-shaped shaft; 332. Torsion spring; 34. Vertical toothed plate; 341. Pressure plate; 4. Anti-reverse block; 41. Mounting base. Detailed Implementation
[0019] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0020] Reference Figure 1-8 A backstop with a telescopic adjustable mechanism includes a handcart frame 1, a fixed square tube 2 is hinged on the handcart frame 1, and a sliding square tube 21 is axially slidably installed inside the fixed square tube 2. Two mounting boxes 3 are respectively fixedly installed on the fixed square tube 2 and the sliding square tube 21; Four L-shaped clips 31 are provided. Two rectangular openings are provided on each of the two mounting boxes 3. The four L-shaped clips 31 are slidably installed in the corresponding rectangular openings, and the two L-shaped clips 31 located on the same mounting box 3 are arranged symmetrically. The same T-shaped shaft 331 is rotatably mounted on the inner walls of both sides of the mounting box 3. A gear 33 is fixedly sleeved on the T-shaped shaft 331. A horizontal toothed plate 32 is fixedly mounted on each of the two L-shaped blocks 31. The two horizontal toothed plates 32 mesh with the gear 33 from above and below, respectively. When the T-shaped shaft 331 rotates, it can control the two L-shaped blocks 31 to move in opposite directions, so as to facilitate quick engagement into the two L-shaped slots on the corresponding mounting base 41. At the same time, it can also control the two L-shaped blocks 31 to disengage from the corresponding L-shaped slots when the T-shaped shaft 331 rotates in the opposite direction. One end of the T-shaped shaft 331 extends to the outside of the mounting box 3 and is fixedly mounted with a torsion spring 332. The torsion spring 332 is movably sleeved on the outside of the T-shaped shaft 331 and fixedly connected to the mounting box 3. When the T-shaped shaft 331 is not operated, the two L-shaped blocks 31 can be stably locked in the corresponding L-shaped slots, thereby ensuring the installation stability of the anti-reverse block 4. A vertical toothed plate 34 that meshes with a gear 33 is slidably installed on the top side of the inner wall of the mounting box 3. The top of the vertical toothed plate 34 extends to the top of the mounting box 3 and is fixedly installed with a pressure plate 341. This allows the vertical toothed plate 34 to drive the gear 33 to control the rotation of the T-shaped shaft 331 by pressing the pressure plate 341. This allows the L-shaped locking block 31 to move towards each other with the cooperation of the horizontal toothed plate 32, thereby enabling the quick disassembly of the anti-reverse block 4. Two anti-rollover blocks 4 are provided, each with an embedded mounting base 41. Each mounting base 41 has two L-shaped slots for matching L-shaped locking blocks 31. The two anti-rollover blocks 4 are respectively mounted on the corresponding mounting boxes 3 via the corresponding two L-shaped locking blocks 31 and two L-shaped slots. The anti-rollover blocks 4 are made of rubber, and multiple anti-slip grooves are provided on both inclined surfaces of the anti-rollover blocks 4. This can prevent relative slippage between the anti-rollover blocks 4 and the tire when acting in the forward and backward directions of the car tire, thereby ensuring the anti-rollover effect of the tire.
[0021] In this embodiment, in order to limit the sliding square tube 21 and prevent it from detaching from the fixed square tube 2 when sliding on the inner wall of the fixed square tube 2, and to facilitate the operator to control the sliding square tube 21 to slide along the axial direction of the fixed square tube 2, thereby enabling the rapid extension and retraction adjustment of the distance between the two anti-rollover blocks 4, so as to achieve a good anti-rollover effect for tires of different sizes, a limiting groove is opened on the inner wall of the top side of the fixed square tube 2, the front end of the limiting groove passes through the fixed square tube 2, a limiting block 211 is fixedly installed on the front end of the top side of the sliding square tube 21, and the limiting block 211 is slidably installed in the limiting groove, and a handle 212 is fixedly installed on the rear end of the top side of the sliding square tube 21.
[0022] In this embodiment, in order to facilitate the synchronous retraction and extension of the two anti-retraction blocks 4, two hinge seats are fixedly installed on the top side of the handcart frame 1, and two hinge blocks are fixedly installed on the fixed square tube 2, which are respectively hinged to the corresponding hinge seats. When the bottom side of the hinge block abuts against the top side of the handcart frame 1, the two anti-retraction blocks 4 are in an unfolded state ready for use.
[0023] In this embodiment, two guide rods 311 located on the same axis are fixedly installed on the inner wall of the mounting box 3. The two guide rods 311 are slidably connected to the corresponding L-shaped blocks 31, which can provide stable guidance for the L-shaped blocks 31, thereby enabling them to maintain stable sliding within the corresponding rectangular opening.
[0024] Working principle: When in use, first push the handcart frame 1 to the vicinity of the vehicle tire that needs to be stopped. According to the size of the tire, by holding the handle 212 on the sliding square tube 21, slide the sliding square tube 21 along the axis of the fixed square tube 2 to adjust the distance between the two mounting boxes 3, and then adjust the distance between the two stop blocks 4 to adapt to the width of the tire. During this process, the limiting block 211 on the sliding square tube 21 will slide in the limiting groove of the fixed square tube 2 to ensure that the sliding square tube 21 will not detach from the fixed square tube 2. After the adjustment is completed, place the two stop blocks 4 on the front and rear sides of the tire respectively (or place them on one side according to the actual stop requirements). At this time, since the fixed square tube 2 is hinged to the hinge seat on the handcart frame 1 through the hinge block, when the bottom side of the hinge block abuts against the top side of the handcart frame 1, the two stop blocks 4 are in the unfolded state ready for use. The rubber stop blocks 4 and the multiple anti-slip grooves on the inclined surface can make good contact with the tire surface.
[0025] If the anti-reverse block 4 needs to be installed or replaced, during installation, align the mounting base 41 on the anti-reverse block 4 with the mounting box 3. At this time, press down the pressure plate 341 on the mounting box 3. The pressure plate 341 drives the vertical tooth plate 34 to slide downward. The vertical tooth plate 34 meshes with the gear 33, thereby driving the gear 33 to rotate. The gear 33 then drives the two horizontal tooth plates 32 (located above and below the gear 33 respectively) that mesh with it to move in opposite directions and respectively drive the corresponding L-shaped locking blocks 31 to slide closer to each other. At the same time, the rotation of the gear 33 will drive the T-shaped shaft 331 to rotate. The torsion spring 332 at one end of the T-shaped shaft 331 is twisted and stored. Then, the two L-shaped locking slots on the mounting base 41 are opened. The two L-shaped blocks 31 are respectively locked onto the corresponding L-shaped blocks 31 and the anti-reverse block 4 is pushed towards the handcart frame 1. Then the pressure plate 341 is released. After the L-shaped blocks 31 are locked in place, the torsion spring 332 can control the two L-shaped blocks 31 to move away from each other and stably lock into the corresponding L-shaped slots, thereby firmly installing the anti-reverse block 4 on the mounting box 3. When disassembling, simply press the pressure plate 341 again to bring the two L-shaped blocks 31 closer to each other and remove the anti-reverse block 4. Through this operation, the installation and disassembly of the anti-reverse block 4 can be completed quickly and conveniently, ensuring the efficient execution of the anti-reverse operation and the stable operation of the anti-reverse block 4.
[0026] The foregoing has provided a detailed description of a backstop device with an adjustable telescopic mechanism according to this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A backstop with a telescopic adjustable mechanism, characterized in that, Includes a handcart frame (1), on which a fixed square tube (2) is hingedly installed, and a sliding square tube (21) is axially slidably installed inside the fixed square tube (2); Two mounting boxes (3) are fixedly mounted on the fixed square tube (2) and the sliding square tube (21) respectively; Four L-shaped clips (31) are provided. Two rectangular openings are provided on each of the two mounting boxes (3). The four L-shaped clips (31) are slidably installed in the corresponding rectangular openings. The two L-shaped clips (31) on the same mounting box (3) are arranged symmetrically. Two linkage reset components are respectively set on the corresponding mounting box (3) and respectively connected to the corresponding two L-shaped card blocks (31); Two quick-release control components are respectively installed on the corresponding mounting box (3) and respectively connected to the corresponding linkage reset component; Two anti-reverse blocks (4) are fixedly mounted on each of the two anti-reverse blocks (4). Each of the two mounting bases (41) has two L-shaped slots for adapting L-shaped blocks (31). The two anti-reverse blocks (4) are respectively mounted on the corresponding mounting boxes (3) through the corresponding two L-shaped blocks (31) and two L-shaped slots.
2. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: The linkage reset assembly includes two transverse toothed plates (32), a gear (33) and a T-shaped shaft (331). The same T-shaped shaft (331) is rotatably mounted on the inner walls of both sides of the mounting box (3). The gear (33) is fixedly sleeved on the T-shaped shaft (331). Transverse toothed plates (32) are fixedly mounted on both L-shaped blocks (31). The two transverse toothed plates (32) mesh with the gear (33) from above and below, respectively.
3. A backstop with a telescopic adjustable mechanism according to claim 2, characterized in that: The linkage reset assembly also includes a torsion spring (332). One end of the T-shaped shaft (331) extends to the outside of the mounting box (3) and is fixedly installed with the torsion spring (332). The torsion spring (332) is movably sleeved on the outside of the T-shaped shaft (331) and fixedly connected to the mounting box (3).
4. A backstop with a telescopic adjustable mechanism according to claim 3, characterized in that: The quick-release control assembly includes a pressure plate (341) and a vertical toothed plate (34). The vertical toothed plate (34) that meshes with the gear (33) is slidably installed on the top side of the inner wall of the mounting box (3). The top of the vertical toothed plate (34) extends above the mounting box (3) and is fixedly installed with the pressure plate (341).
5. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: A limiting groove is provided on the top inner wall of the fixed square tube (2), the front end of the limiting groove passes through the fixed square tube (2), and a limiting block (211) is fixedly installed on the top front end of the sliding square tube (21), and the limiting block (211) is slidably installed in the limiting groove.
6. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: A handle (212) is fixedly installed on the top rear end of the sliding square tube (21).
7. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: The anti-slip block (4) is made of rubber, and multiple anti-slip grooves are provided on both inclined surfaces of the anti-slip block (4).
8. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: Two hinge seats are fixedly installed on the top side of the handcart frame (1). Two hinge blocks are fixedly installed on the fixed square tube (2) and are respectively hinged to the corresponding hinge seats. When the bottom side of the hinge block abuts against the top side of the handcart frame (1), the two anti-reverse blocks (4) are in an unfolded state ready for use.
9. A backstop with a telescopic adjustable mechanism according to claim 1, characterized in that: Two guide rods (311) located on the same axis are fixedly installed on the inner wall of the mounting box (3), and the two guide rods (311) are slidably connected to the corresponding L-shaped blocks (31).