A new type of truck support rod

Abstract

This utility model relates to the field of logistics safety tools, and more particularly to a novel truck support rod, comprising an outer tube and an inner tube with one end inserted into the outer tube. The outer and inner tubes are equipped with mutually cooperating transmission components. The transmission components include a pull strap mounted on the inner tube and a mounting clip fixed to the end of the outer tube. The two ends of the pull strap are respectively mounted on the two ends of the inner tube, with the end of the pull strap protruding from the outer tube being an elastic band. A drive handle is rotatably mounted on the outer end of the mounting clip. A first roller pin, a second roller pin, and a third roller pin are mounted on the drive handle, with the third roller pin slidably mounted between the first and second roller pins. The pull strap passes sequentially above the second and third roller pins and below the first roller pin. This utility model uses a pull strap drive instead of the traditional pawl and rack drive, meeting the usage requirements of the truck support rod while reducing production costs for enterprises.

Description

Technical Field

[0001] This utility model relates to the field of logistics safety tools, and in particular to a novel truck support rod. Background Technology

[0002] In the daily loading, unloading, and transportation processes of vans, truck support bars play a crucial safety role. When a truck is loaded with cargo, properly positioned support bars can effectively support and limit the stacked goods. During driving, even in situations such as road bumps or sudden braking, they can use their structural strength and support to prevent the cargo inside the van from tipping over or collapsing due to inertia and swaying. They physically build a protective barrier, minimizing the risk of damage caused by cargo squeezing or falling. They are key safety equipment for ensuring safe cargo transportation and reducing operational losses.

[0003] Currently, most truck support rod transmission mechanisms employ a ratchet and rack mechanism. The ratchet's engagement and movement on the rack drives the support rod to extend or retract, adapting to different support requirements. However, from a practical manufacturing perspective, the ratchet and rack require high design precision and the use of high-quality metal raw materials, such as high-strength alloy steel. This results in high raw material procurement and manufacturing costs. Therefore, we propose a novel truck support rod to address these issues. Utility Model Content

[0004] This invention addresses the high cost of existing technologies that use pawls and racks as support rod transmission mechanisms, by providing a novel truck support rod.

[0005] This utility model is achieved through the following technical solution:

[0006] A novel truck support rod includes an outer tube and an inner tube with one end inserted into the outer tube. The outer tube and the inner tube are equipped with mutually cooperating transmission components. The transmission components include a pull strap installed on the inner tube and a mounting sleeve fixed to the end of the outer tube.

[0007] The two ends of the pull strap are respectively installed at both ends of the inner tube, and the end of the pull strap protruding from the outer tube is an elastic band, while the end of the pull strap inside the outer tube is connected to a compression spring.

[0008] The outer end of the mounting sleeve is rotatably mounted with a drive handle, on which a first roller pin, a second roller pin, and a third roller pin are mounted, and the third roller pin is slidably mounted between the first roller pin and the second roller pin.

[0009] The pull strap passes sequentially above the second and third roller pins and passes under the first roller pin. The pull strap is wrapped around the first, second, and third roller pins. When the drive handle is repeatedly turned, the pull strap moves forward through the cooperation of the first, second, and third roller pins, thereby pulling the inner tube out of the outer tube.

[0010] In a preferred embodiment of this utility model, hooks are installed at both ends of the pull strap, and the pull strap is installed on the inner tube body through the hooks. The installation of the pull strap is made more convenient by setting the hooks.

[0011] In a preferred embodiment of this utility model, a fixed cover is snapped onto the end of the inner tube away from the elastic band, and a retaining seat is provided on the outside of the fixed cover. The end of the pull strap passes through the retaining seat and drives the retaining seat to move when the pull strap is under force. The compression spring is snapped onto the retaining seat and the fixed cover, and the compression spring is sleeved on the pull strap. When the pull strap is under force, it drives the retaining seat to move. While the retaining seat compresses the compression spring, the compression spring pushes the inner tube to move outward, so that the inner tube extends to achieve the support function.

[0012] In a preferred embodiment of this utility model, the pull strap passes through the upper and lower layers of the card holder part by sewing, which facilitates better pulling of the card holder when the pull strap is under force.

[0013] In a preferred embodiment of this utility model, a protective tube is fitted over the end of the inner tube that protrudes from the outer tube. The length of the protective tube is greater than the length of the elastic band. The protective tube protects the exposed pull strip and elastic band, and at the same time, it can limit the hook to prevent it from detaching from the inner tube.

[0014] In a preferred embodiment of this utility model, both the outer end of the protective tube and the outer end of the outer tube body are equipped with support feet. Anti-slip protrusions are provided on the outer end face of the support feet. The support feet increase the contact area when the device is supported, and the anti-slip protrusions can reduce the slippage of the support feet when supporting.

[0015] In a preferred embodiment of this utility model, a locking shaft is provided at the end of the mounting sleeve away from the drive handle.

[0016] In a preferred embodiment of this utility model, a guide wheel is installed in the middle of the mounting sleeve, and the bottom of the guide wheel is in contact with the pull belt. The guide wheel improves the stability of the pull belt when it moves, and at the same time facilitates the pull belt to be removed from the outer tube.

[0017] In a preferred embodiment of the present invention, the drive handle is provided with a first mounting hole, a second mounting hole and an elongated mounting hole. The first roller pin is rotatably mounted in the first mounting hole, the second roller pin is slidably mounted in the elongated mounting hole, and the third roller pin is rotatably mounted in the second mounting hole. The first roller pin, the second roller pin and the third roller pin are distributed in a triangular shape.

[0018] The beneficial effects of this utility model are:

[0019] This invention uses three rollers working together to move the belt, which in turn causes the inner tube to extend. By using belt drive instead of the traditional pawl and rack drive, it meets the needs of truck support rods. At the same time, the belt structure is simple and the materials are readily available. Unlike pawls and racks, it does not require high-precision, high-cost special metal materials and complex precision machining processes, which greatly reduces the production cost of enterprises, significantly improves the cost-effectiveness of products, and enhances their market competitiveness. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of a novel truck support rod according to the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure at point A;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure at point B.

[0023] Figure 4 This is a schematic diagram of the main structure of a novel truck support rod according to the present invention;

[0024] Figure 5 This is a cross-sectional structural schematic diagram of a novel truck support rod according to the present invention.

[0025] In the diagram: 1. Support foot; 2. Card holder; 3. Compression spring; 4. Fixing cover; 5. Inner tube; 6. Pull strap; 61. Elastic band; 7. Mounting sleeve; 8. Locking shaft; 9. Guide wheel; 10. First roller pin; 11. Second roller pin; 12. Third roller pin; 13. Drive handle; 131. Long strip mounting hole; 132. First mounting hole; 133. Second mounting hole; 14. Hook; 15. Protective tube; 16. Anti-slip protrusions; 17. Outer tube. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0027] like Figure 1-5The novel truck support rod shown includes an outer tube 17 and an inner tube 5 with one end inserted into the outer tube 17. A fixing cap 4 is snapped onto one end of the inner tube 5 inserted into the outer tube 17. The fixing cap 4 is securely snapped onto the port of the inner tube 5 by means of a buckle or an adaptive slot structure. A card seat 2 is provided on the outside of the fixing cap 4. A compression spring 3 is snapped between the card seat 2 and the fixing cap 4.

[0028] When the inner tube 5 is retracted, the inner tube 5 drives the fixed cover 4 to move towards the support foot 1 installed at the end of the outer tube 17. The compression spring 3 is compressed by the fixed cover 4 and absorbs the kinetic energy during the retraction process through its own elastic deformation, converting mechanical energy into elastic potential energy, thereby achieving buffering and deceleration of the inner tube 5 and effectively avoiding the inner tube 5 from directly colliding rigidly with the support foot 1 at the end of the outer tube 17.

[0029] The outer tube 17 and the inner tube 5 are equipped with a transmission assembly that cooperates with each other. The transmission assembly includes a pull strap 6 installed on the inner tube 5 and a mounting sleeve 7 fixed to the end of the outer tube 17.

[0030] The two ends of the pull strap 6 are respectively installed at both ends of the inner tube 5, and the end of the pull strap 6 that protrudes from the outer tube 17 is an elastic band 61. The end of the pull strap 6 located inside the outer tube 17 passes through the card seat 2 and is installed on the fixed cover 4 at the end of the inner tube 5. The upper and lower layers of the pull strap 6 passing through the card seat 2 are sewn together. When the pull strap 6 is under force, it drives the card seat 2 to move. At the same time, the compression spring 3 is sleeved on the pull strap 6. When the pull strap 6 is under force, it drives the card seat 2 to move. While the card seat 2 compresses the compression spring 3, the compression spring 3 pushes the inner tube 5 to move outward, so that the inner tube 5 extends to achieve the support function. Each end of the pull strap 6 is equipped with a hook 14. The pull strap 6 is installed on the inner tube 5 through the hook 14. The installation of the pull strap 6 is improved by setting the hook 14.

[0031] The outer end of the mounting sleeve 7 is rotatably mounted with a drive handle 13 via a pin. The drive handle 13 has a first mounting hole 132, a second mounting hole 133 and an elongated mounting hole 131. A first roller pin 10 is installed in the first mounting hole 132, a second roller pin 11 is slidably installed in the elongated mounting hole 131, and a third roller pin 12 is installed in the second mounting hole 133. The first roller pin 10, the second roller pin 11 and the third roller pin 12 are triangularly distributed. The second roller pin 11 can move left and right in the elongated mounting hole 131.

[0032] The pull belt 6 adopts a specific path and passes through the top of the second roller pin 11 and the third roller pin 12 in sequence, and passes under the first roller pin 10. The pull belt 6 is wrapped around the first roller pin 10, the second roller pin 11 and the third roller pin 12 to form a multi-roller coordinated transmission structure. When the operator repeatedly turns the drive handle 13, the pull belt 6 is moved forward through the cooperation of the first roller pin 10, the second roller pin 11 and the third roller pin 12, and then the inner tube 5 is pulled out of the outer tube 17 through the pull belt 6.

[0033] Furthermore, a locking shaft 8 is provided at the end of the mounting sleeve 7 away from the drive handle 13. The mounting sleeve 7, which is sleeved on the outer tube 17, is fixed by the locking shaft 8. A guide wheel 9 is installed in the middle of the mounting sleeve 7. The bottom of the guide wheel 9 is in contact with the pull belt 6 to limit and guide the pull belt 6. The guide wheel 9 improves the stability of the pull belt 6 when it moves, making the winding and unwinding actions of the pull belt 6 more precise and controllable, and at the same time making it easier for the pull belt 6 to be moved out of the outer tube 17.

[0034] A protective tube 15 is fitted over the end of the inner tube 5 that protrudes from the outer tube 17. The length of the protective tube 15 is greater than the length of the elastic band 61. The protective tube 15 protects the exposed pull strap 6 and elastic band 61. At the same time, the protective tube 15 can also limit the hook 14 to prevent it from detaching from the inner tube 5. Support feet 1 are installed at the outer ends of the protective tube 15 and the outer ends of the outer tube 17. Anti-slip protrusions 16 are provided on the outer end face of the support feet 1. The support feet 1 increase the contact area when the device is supported. At the same time, the anti-slip protrusions 16 can reduce the slippage of the support feet 1 when supported.

[0035] In this embodiment, when the support rod needs to be extended, the drive handle 13 is repeatedly turned. When the drive handle 13 is turned forward, it drives the third roller 12 to press down (the third roller 12 slides upward in the elongated mounting hole 131 until it is locked). The third roller 12 and the first roller 10 cooperate to press and fix the front half of the pull strap 6. At the same time, when the drive handle 13 continues to press forward, it drives the second roller 11 to continue forward. The second roller 11 pulls the rear half of the pull strap 6, and then the pull strap 6 pulls the card seat 2 to move. The card seat 2 compresses the compression spring 3. At the same time, the compression spring 3 pushes the inner tube 5 to move outward, so that the inner tube 5 extends a certain distance.

[0036] When the drive handle 13 is pulled back, the third roller pin 12 is released and the pull belt 6 is released. At this time, the pull belt 6 is straightened by the elastic belt 61, so that the pull belt 6 moves forward a small distance in the transmission assembly, so that the inner tube body 5 can be extended when the drive handle 13 is pulled next time. The drive handle 13 is pulled repeatedly in this way to realize the extension action of the support rod and provide support for the cargo box.

[0037] When the support rod needs to be retracted, turn the drive handle 13 backward to loosen the pull strap 6. Press the end of the inner tube 5 to press the inner tube 5 into the outer tube 17. During the retraction process, the compression spring 3 cushions the inner tube 5.

[0038] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0039] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A novel truck support rod, comprising an outer tube (17) and an inner tube (5) with one end inserted into the outer tube (17), wherein the outer tube (17) and the inner tube (5) are equipped with mutually cooperating transmission components, characterized in that: The transmission assembly includes a pull strap (6) mounted on the inner tube (5) and a mounting sleeve (7) fixed to the end of the outer tube (17); The two ends of the pull strap (6) are respectively installed at the two ends of the inner tube (5), and the end of the pull strap (6) that protrudes from the outer tube (17) is an elastic band (61), and the end of the pull strap (6) located inside the outer tube (17) is connected to a compression spring (3). The outer end of the mounting sleeve (7) is rotatably mounted with a drive handle (13), and a first roller pin (10), a second roller pin (11) and a third roller pin (12) are mounted on the drive handle (13). The third roller pin (12) is slidably mounted between the first roller pin (10) and the second roller pin (11). The pull strap (6) passes over the second roller pin (11) and the third roller pin (12) in sequence, and passes under the first roller pin (10).

2. A novel truck support pole according to claim 1 characterized in that: Both ends of the pull strap (6) are equipped with hooks (14), and the pull strap (6) is installed on the inner tube (5) through the hooks (14).

3. A novel support pole for a truck as claimed in claim 2, characterized in that: The inner tube (5) is attached to a fixed cover (4) at one end away from the elastic band (61). A seat (2) is provided on the outside of the fixed cover (4). The end of the pull strap (6) passes through the seat (2) and moves the seat (2) when the pull strap (6) is under force. The compression spring (3) is attached to the seat (2) and the fixed cover (4). The compression spring (3) is sleeved on the pull strap (6).

4. A novel support pole for a truck as claimed in claim 3, wherein: The pull strap (6) passes through the upper and lower layers of the card holder (2) and is sewn together.

5. A new support pole for a truck according to claim 1 characterized by: The inner tube (5) is fitted with a protective tube (15) at one end that protrudes from the outer tube (17), and the length of the protective tube (15) is greater than the length of the elastic band (61).

6. A novel support pole for a truck as claimed in claim 5, characterized in that: Both the outer end of the protective tube (15) and the outer end of the outer tube body (17) are equipped with support feet (1), and anti-slip protrusions (16) are provided on the outer end face of the support feet (1).

7. A new support pole for a truck according to claim 1 characterized by: The mounting sleeve (7) is provided with a locking shaft (8) at the end away from the drive handle.

8. A novel truck support rod according to claim 7, characterized in that: A guide wheel (9) is installed in the middle of the mounting sleeve (7), and the bottom of the guide wheel (9) is in contact with the pull strap (6).

9. A novel truck support rod according to claim 1, characterized in that: The drive handle (13) is provided with a first mounting hole (132), a second mounting hole (133) and an elongated mounting hole (131). The first roller pin (10) is rotatably installed in the first mounting hole (132), the second roller pin (11) is slidably installed in the elongated mounting hole (131), and the third roller pin (12) is rotatably installed in the second mounting hole (133).

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