Locking mechanism for vehicle-mounted wheel type lifting mast and use method

Abstract

The application belongs to the technical field of lifting masts, and particularly relates to a locking mechanism for a vehicle-mounted wheeled lifting mast and a use method thereof, which comprises a push rod main body and a piston rod installed on the push rod main body. A wheeled moving part is fixedly connected to one end of the piston rod away from the push rod main body. A locking body is installed on the wheeled moving part. A ring body is fixedly connected to the outside of the locking body on the push rod main body through a connecting frame. A spiral locking belt located outside the locking body is installed on the inside of the ring body. One end of the spiral locking belt is connected to the inner wall of the ring body. The other end of the spiral locking belt is connected to a winding locking part installed on the ring body. The part of the spiral locking belt located inside the ring body is arranged in a spiral shape. A plurality of locking belt reinforcing parts are arranged on the ring body. The spiral locking belt is inserted into the inside of the locking belt reinforcing parts. The application can strengthen the locking effect of the lifting mast and reduce the deformation damage of the locking mechanism when the lifting mast is locked.

Description

Technical Field

[0001] This invention belongs to the field of lifting mast technology, specifically relating to a locking mechanism and its usage method for a vehicle-mounted wheeled lifting mast. Background Technology

[0002] Vehicle-mounted wheeled lifting masts are widely used in various applications such as telecommunications, fire fighting, and maintenance. These lifting masts typically have a telescopic structure to provide additional height when needed. To ensure safety and stability, the lifting mast usually needs to be locked after reaching the required height to prevent it from falling or tilting unexpectedly.

[0003] In the existing technology, the locking mechanism of the lifting mast usually adopts various rigid locking structures or clamping devices. Although these locking mechanisms are effective to a certain extent, they may be affected by various forces and stresses in actual use, which may lead to deformation, damage or failure of the mechanism.

[0004] In particular, in some applications, the lifting mast may be subjected to constantly changing external forces, such as wind, vibration or temperature changes, which may lead to a decline in the performance of the locking mechanism and potentially cause dangerous situations. Therefore, it is necessary to provide a new and improved locking mechanism to address the problems and challenges existing in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a locking mechanism and method for a vehicle-mounted wheeled lifting mast, which can enhance the locking effect of the lifting mast and reduce the deformation and damage to the locking mechanism when locking the lifting mast.

[0006] The specific technical solution adopted by this invention is as follows:

[0007] A locking mechanism for a vehicle-mounted wheeled lifting mast includes a push rod body and a piston rod mounted on the push rod body. A wheeled moving part is fixedly connected to one end of the piston rod away from the push rod body. A locking body is mounted on the wheeled moving part. A ring body is fixedly connected to the push rod body and located outside the locking body via a connecting frame. A spiral locking band located outside the locking body is mounted on the inner side of the ring body. One end of the spiral locking band is connected to the inner wall of the ring body, and the other end of the spiral locking band is connected to a winding locking part mounted on the ring body. The portion of the spiral locking band located inside the ring body is spirally arranged.

[0008] Furthermore, the ring body is also provided with multiple locking strap reinforcement parts, and the spiral locking strap is inserted into the inside of the locking strap reinforcement parts.

[0009] Furthermore, the locking strap reinforcement includes a slide that is horizontally slidably connected to the ring body, one end of which extends into the inside of the ring body and is fixedly connected to a limiting ring, and the spiral locking strap is inserted into the inside of the limiting ring.

[0010] Furthermore, a return spring is installed inside the slide, one end of which abuts against the ring body, and the other end of which abuts against the end of the slide away from the limiting ring.

[0011] Furthermore, the locking body includes four sliding connectors fixedly connected to the wheeled moving parts, and locking strips are installed on the sliding connectors.

[0012] Furthermore, the sliding connector includes a guide rail fixedly connected to the wheel-type moving part, a slide block slidably connected inside the guide rail, a locking bar fixedly connected to the slide block, and a return spring II installed inside the guide rail and at a position near the piston rod on the slide block.

[0013] Furthermore, the side of the locking bar away from the push rod body is the locking surface, and the upper end of the locking surface is inclined towards the direction close to the push rod body.

[0014] Furthermore, the locking surface is provided with a number of arc-shaped protrusions arranged sequentially from top to bottom.

[0015] A method for using a locking mechanism for a vehicle-mounted wheeled lifting mast includes the following steps:

[0016] S1: The starter push rod body drives the wheeled moving parts and the locking body to move together;

[0017] S2: After the lifting mast is adjusted, the spiral locking belt is tightened by the winding locking device, so that the spiral locking belt is wrapped around the outside of the locking body and the push rod body, binding the push rod body and the locking body into a whole structure, thus completing the locking of the lifting mast;

[0018] S3: The spiral locking belt is unwound by the winding locking device, the spiral locking belt is released from the locking body, and the wheel-type moving part is reset by the push rod body.

[0019] The technical effects achieved by this invention are as follows:

[0020] The present invention provides a locking mechanism and method for a vehicle-mounted wheeled lifting mast. By setting a winding locking component to wind up the spiral locking belt, the spiral locking belt can be easily tied to the outside of the locking body and the push rod body, thereby enhancing the locking effect of the lifting mast. The spiral locking belt connects the push rod body and the locking body into one unit, which can effectively reduce the deformation and damage to the locking mechanism when locking the lifting mast. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the locking mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the locking mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the locking strip of the present invention;

[0025] Figure 5 This is a side view of the structure of the locking strip of the present invention;

[0026] Figure 6 This is the present invention. Figure 4 A magnified view of a section at point A in the middle;

[0027] Figure 7 This is a cross-sectional structural diagram of the wheeled moving part of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Push rod body; 2. Piston rod; 3. Wheeled moving part; 4. Locking body; 5. Ring body; 6. Spiral locking belt; 7. Rewinding locking part; 8. Limiting ring; 9. Slide; 10. Return spring one; 11. Locking bar; 12. Locking surface; 13. Guide rail; 14. Slide seat; 15. Return spring two; 16. Arc-shaped protrusion; 17. Connecting frame; 18. Locking belt reinforcement part; 19. Sliding connecting part; 20. Outer shell; 21. Inner shell; 22. Wheel; 23. Side frame; 24. Guide groove; 25. Electric push rod; 26. Reinforcing plate. Detailed Implementation

[0030] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0031] like Figure 1 As shown, a locking mechanism for a vehicle-mounted wheeled lifting mast includes a push rod body 1 and a piston rod 2 mounted on the push rod body 1. The push rod body 1 can adjust the extension length of the piston rod 2. A wheeled moving part 3 is fixedly connected to one end of the piston rod 2 away from the push rod body 1. When the push rod body 1 is mounted on a vehicle, the wheeled moving part 3 can be moved by the push rod body 1, so that the wheeled moving part 3 contacts the ground.

[0032] To lock the piston rod 2, a locking body 4 is installed on the wheel-type moving part 3. When the wheel-type moving part 3 moves, it will drive the locking body 4 to move together. A ring body 5 is fixedly connected to the push rod body 1 on the outside of the locking body 4 via a connecting bracket 17. A spiral locking band 6 located on the outside of the locking body 4 is installed on the inside of the ring body 5. One end of the spiral locking band 6 is connected to the inner wall of the ring body 5, and the other end of the spiral locking band 6 is connected to a winding locking member 7 installed on the ring body 5. The spiral locking band 6 can be wound up and wrapped around the outside of the locking body 4 by the winding locking member 7. The portion of the locking belt 6 located inside the ring body 5 is spirally arranged. When the wheel-type moving part 3 has moved, the spiral locking belt 6 is tightened by the winding locking part 7, so that the spiral locking belt 6 is tightened on the outside of the locking body 4, allowing the spiral locking belt 6 to wrap around the outside of the locking body 4 and the push rod body 1, binding the push rod body 1 and the locking body 4 into a single structure, thereby strengthening the locking effect of the lifting mast. The spiral locking belt 6 connects the push rod body 1 and the locking body 4 into a single unit, which can effectively reduce the deformation and damage to the locking mechanism when locking the lifting mast.

[0033] In order to position the spiral locking belt 6 and reduce the vertical offset of the spiral locking belt 6, multiple locking belt reinforcement members 18 are also provided on the ring body 5, and the spiral locking belt 6 is inserted into the inside of the locking belt reinforcement members 18.

[0034] like Figure 1-2 As shown, the locking strap reinforcement 18 includes a slide 9 that is horizontally slidably connected to the ring body 5. One end of the slide 9 extends into the inside of the ring body 5 and is fixedly connected to a limit ring 8. The spiral locking strap 6 is inserted into the inside of the limit ring 8. At this time, when the spiral locking strap 6 is tightened, it will drive the limit ring 8 to move together, so that the limit ring 8 can only restrict the vertical movement of the spiral locking strap 6, but cannot restrict the horizontal movement of the spiral locking strap 6.

[0035] like Figure 2-3 As shown, a return spring 10 is installed inside the slide 9. One end of the return spring 10 abuts against the ring body 5, and the other end of the return spring 10 abuts against the end of the slide 9 away from the limiting ring 8. By pushing the slide 9 with the return spring 10, the limiting ring 8 can be reset, so that the limiting ring 8 resets the spiral locking band 6 to a position away from the push rod body 1, so that the spiral locking band 6 and the locking body 4 are separated, thereby reducing the impact on the movement of the locking body 4.

[0036] Among them, such as Figure 1-2 and Figure 4As shown, the locking body 4 includes four sliding connectors 19 fixedly connected to the wheel-type moving parts 3. Locking strips 11 are installed on the sliding connectors 19. The spiral locking band 6 can be fixed on the outside of the locking strips 11, and the spiral locking band 6 can drive the locking strips 11 to move horizontally on the sliding connectors 19, so that the locking strips 11 and the push rod body 1 can fit tightly together.

[0037] like Figure 4-5 As shown, the sliding connector 19 includes a guide rail 13 fixedly connected to the wheel-type moving part 3. A slide block 14 is slidably connected inside the guide rail 13. A locking bar 11 is fixedly connected to the slide block 14. A return spring 2 15 is installed inside the guide rail 13 and at a position near the piston rod 2 on the slide block 14. The lock bar 11 can be pushed by the return spring 2 15, so that the lock bar 11 is initially located away from the push rod body 1, reducing the impact on the movement of the wheel-type moving part 3.

[0038] The side of the locking bar 11 away from the push rod body 1 is the locking surface 12, and the upper end of the locking surface 12 is inclined towards the push rod body 1. At this time, when the spiral locking band 6 is tightened, it will contact the locking surface 12. Since the outer diameter of the four locking bars 11 assembly gradually increases from top to bottom, the push rod body 1 will be limited by the spiral locking band 6 when it moves downward. At this time, the spiral locking band 6 will be stuck on the outside of the locking body 4, thereby further improving the locking effect on the lifting mast.

[0039] Furthermore, the locking surface 12 is provided with a number of arc-shaped protrusions 16 arranged sequentially from top to bottom. When the spiral locking band 6 contacts the arc-shaped protrusions 16, the vertical misalignment of the locking bar 11 and the spiral locking band 6 can be reduced, thereby improving the locking effect on the lifting mast.

[0040] Please refer to Figure 1 and Figure 7 The wheeled moving component 3 includes a housing 20, inside which an inner housing 21 is installed. Wheels 22 are rotatably connected inside the inner housing 21, allowing movement by rotation when the wheels 22 are in contact with the ground. A side frame 23 is fixedly connected to the outer side of the inner housing 21. A guide groove 24 is provided on the upper part of the housing 20, through which the side frame 23 extends to the outer side of the housing 20. An electric push rod 25, connected to the side frame 23, is fixedly connected to the outer side of the housing 20. Activating the electric push rod 25 moves the inner housing 21, adjusting the position of the wheels 22. A reinforcing plate 26 is also fixedly connected to the lower part of the outer side of the housing 20, thereby increasing the base area between the reinforcing plate 26 and the ground.

[0041] Furthermore, a method for using a locking mechanism for a vehicle-mounted wheeled lifting mast is disclosed herein, specifically comprising the following steps:

[0042] Step 1: Start the push rod body 1 to drive the wheeled moving part 3 to move. When the wheeled moving part 3 moves, it will drive the locking body 4 to move together.

[0043] Step 2: After the lifting mast is adjusted, tighten the spiral locking band 6 by using the winding locking component 7, so that the spiral locking band 6 can be wrapped around the outside of the locking body 4 and the push rod body 1, and the push rod body 1 and the locking body 4 are tied into one structure to complete the locking of the lifting mast.

[0044] Here, as Figure 1-6 As shown, step two is described in detail here. When the spiral locking band 6 is tightened by the winding locking member 7, the spiral locking band 6 will press the locking strip 11, causing the locking strip 11 to move horizontally until the locking strip 11 contacts the push rod body 1. The locking strip 11 and the push rod body 1 can then be bound together into a single structure by the spiral locking band 6.

[0045] Step 3: Unwind the spiral locking belt 6 by using the winding locking component 7 to release the spiral locking belt 6 from the locking body 4, and then reset the wheel-type moving component 3 by using the push rod body 1.

[0046] In summary, this technical solution uses a winding locking component 7 to wind up the spiral locking band 6, which can easily bind the spiral locking band 6 to the outside of the locking body 4 and the push rod body 1, thereby enhancing the locking effect of the lifting mast. Furthermore, by connecting the push rod body 1 and the locking body 4 into one unit through the spiral locking band 6, the deformation and damage to the locking mechanism when locking the lifting mast can be effectively reduced.

[0047] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A locking mechanism for a vehicle-mounted wheeled lifting mast, comprising a push rod body (1) and a piston rod (2) mounted on the push rod body (1), wherein a wheeled moving part (3) is fixedly connected to one end of the piston rod (2) away from the push rod body (1), characterized in that: A locking body (4) is installed on the wheel-type moving part (3). A ring body (5) is fixedly connected to the push rod body (1) on the outside of the locking body (4) via a connecting frame (17). A spiral locking band (6) located outside the locking body (4) is installed on the inner side of the ring body (5). One end of the spiral locking band (6) is connected to the inner wall of the ring body (5). The other end of the spiral locking band (6) is connected to a winding locking member (7) installed on the ring body (5). The part of the spiral locking band (6) located inside the ring body (5) is spirally arranged. The ring body (5) is also provided with a plurality of locking strap reinforcement parts (18), and the spiral locking strap (6) is inserted into the inside of the locking strap reinforcement parts (18); The locking strap reinforcement (18) includes a slide (9) that is horizontally slidably connected to the ring body (5), one end of the slide (9) extends into the inside of the ring body (5) and is fixedly connected to a limiting ring (8), and the spiral locking strap (6) is inserted into the inside of the limiting ring (8); The slide (9) is equipped with a return spring (10). One end of the return spring (10) abuts against the ring (5), and the other end of the return spring (10) abuts against the end of the slide (9) away from the limiting ring (8).

2. The locking mechanism for a vehicle-mounted wheeled lifting mast according to claim 1, characterized in that: The locking body (4) includes four sliding connectors (19) fixedly connected to the wheeled moving part (3), and a locking strip (11) is installed on the sliding connector (19).

3. The locking mechanism for a vehicle-mounted wheeled lifting mast according to claim 2, characterized in that: The sliding connector (19) includes a guide rail (13) fixedly connected to the wheeled moving part (3), a slide block (14) is slidably connected inside the guide rail (13), the locking bar (11) is fixedly connected to the slide block (14), and a return spring (15) is installed inside the guide rail (13) and at a position on the slide block (14) near the piston rod (2).

4. A locking mechanism for a vehicle-mounted wheeled lifting mast according to claim 2, characterized in that: The locking bar (11) has a locking surface (12) on the side away from the push rod body (1), and the upper end of the locking surface (12) is inclined toward the direction close to the push rod body (1).

5. A locking mechanism for a vehicle-mounted wheeled lifting mast according to claim 4, characterized in that: The locking surface (12) is provided with a plurality of arc-shaped protrusions (16) arranged sequentially from top to bottom.

6. A method of using a locking mechanism for a vehicle-mounted wheeled lifting mast, employing the locking mechanism as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: The starter push rod body (1) drives the wheeled moving part (3) and the locking body (4) to move together; S2: After the lifting mast is adjusted, the spiral locking band (6) is tightened by the winding locking piece (7), so that the spiral locking band (6) is wrapped around the outside of the locking body (4) and the push rod body (1), binding the push rod body (1) and the locking body (4) into a whole structure, thus completing the locking of the lifting mast. S3: The spiral locking belt (6) is unwound by the winding locking member (7), the spiral locking belt (6) is released from the binding of the locking body (4), and the wheel moving member (3) is reset by the push rod body (1).

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