Anti-loosening device for adjusting screw rod

Abstract

The utility model relates to the technical field of screw rod, concretely is a kind of anti-loosening device of adjusting screw rod, including the limiting component of installation at the rear end of screw rod;Limiting component includes mounting plate;The opening of shell is rotatably installed with gear ring, screw rod passes through gear ring and is coaxially fixed with gear ring, the lower portion of gear ring is equipped with movable plate, and the top of movable plate is fixed with the gear block engaged with gear ring;The bottom of movable plate both ends is fixed with guide rod, and guide rod passes through the bottom of shell and is slidably connected with shell, and spring for abutting tightly movable plate is equipped on the outside of guide rod;The top of movable plate both ends is fixed with connecting rod;Screw rod is coaxially fixed with gear ring, when gear block is engaged with gear ring, gear ring cannot rotate, thus screw rod cannot rotate, so that screw rod cannot appear loosening or rotating condition due to vibration and other external force, guarantee the use stability of screw rod, and further guarantee the security of operation.

Description

Technical Field

[0001] This utility model relates to the field of lead screw technology, specifically to an anti-loosening device for adjusting lead screws. Background Technology

[0002] A lead screw is a rod-shaped part with a special structure. Its surface is machined with precise helical grooves, a design that allows the lead screw to fit tightly with a nut. When the lead screw rotates, the nut can move linearly along the axis of the lead screw, thus realizing the conversion from rotational motion to linear motion. Currently, lead screws are widely used in mechanical transmission.

[0003] Utility model patent with authorization announcement number CN202322944106.4 discloses a tensioning fixture, which includes a pair of guide posts that are parallel to each other. A middle block is provided at the middle position of the guide posts along the length direction. A lower extension plate extends downward from the middle block. A lower plate is provided at the lower end of the lower extension plate. An elongated hole is provided on the lower extension plate. A pair of guide rods are provided between the lower extension plates. A tensioning screw is also rotatably provided between the lower extension plates. When cleaning animal skins, the fixture can clamp and tension the animal skins, thereby facilitating the cleaning of animal skins and improving the cleaning effect.

[0004] Although the tensioning fixture is convenient for clamping and tensioning animal hides, the device still has the following problems in actual use: The device adjusts the movement of the movable seat by rotating the tensioning screw through the rotating cap. However, in actual use, the tensioning screw may loosen or rotate due to equipment vibration or other external forces, which may cause the movable seat to move, thus jeopardizing safe operation. In view of this, we propose an anti-loosening device for the adjusting screw. Utility Model Content

[0005] The purpose of this invention is to provide an anti-loosening device for adjusting lead screws to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An anti-loosening device for an adjusting lead screw includes a limiting component installed at the rear end of the lead screw;

[0008] The limiting assembly includes a mounting plate, a housing fixed to the rear end face of the mounting plate, and an open front end face of the housing. A toothed ring is rotatably mounted inside the opening of the housing. A lead screw passes through the toothed ring and is fixed coaxially with the toothed ring. A movable plate is provided below the toothed ring, and a toothed block that meshes with the toothed ring is fixed to the top of the movable plate. Guide rods are fixed at both ends of the bottom of the movable plate. The guide rods pass through the bottom of the housing and are slidably connected to the housing. Springs are sleeved on the outside of the guide rods to press against the movable plate. Connecting rods are fixed at both ends of the top of the movable plate. The top ends of the connecting rods pass through the top of the housing and are slidably connected to the housing.

[0009] As a preferred technical solution of this utility model, a pressure plate is fixed between the top ends of the two connecting rods, and the pressure plate is fixedly connected to the connecting rods by bolts.

[0010] As a preferred technical solution of this utility model, the housing is fixedly connected to the mounting plate by bolts, and both the mounting plate and the housing are made of stainless steel.

[0011] As a preferred technical solution of this utility model, mounting holes are provided at all four corners of the mounting plate, and the mounting holes penetrate the mounting plate.

[0012] As a preferred technical solution of this utility model, the movable plate and the tooth block are integrally formed, and the tooth block is formed by turning process.

[0013] As a preferred technical solution of this utility model, a through hole is provided at the center of the mounting plate, and the lead screw passes through the through hole.

[0014] As a preferred technical solution of this utility model, the movable plate and the guide rod are integrally formed structures, and both the movable plate and the guide rod are made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By using a limiting component, the lead screw and the toothed ring are fixed coaxially. When the toothed block meshes with the toothed ring, the toothed ring cannot rotate, and therefore the lead screw cannot rotate. This prevents the lead screw from loosening or rotating due to external forces such as vibration, ensuring the stability of the lead screw and thus guaranteeing the safety of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the limiting component in this utility model;

[0019] Figure 3 This is a schematic diagram of the shell structure in this utility model;

[0020] Figure 4This is a partial structural schematic diagram of the present invention;

[0021] In the picture:

[0022] 1. Lead screw;

[0023] 2. Limiting component; 20. Mounting plate; 200. Through hole; 201. Mounting hole; 21. Housing; 22. Gear ring; 220. Keyway; 23. Movable plate; 230. Gear block; 24. Guide rod; 25. Spring; 26. Connecting rod; 27. Pressure plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This embodiment provides a technical solution:

[0026] Please see Figures 1-4 As shown, an anti-loosening device for an adjusting lead screw includes a limiting component 2 installed at the rear end of the lead screw 1. The limiting component 2 includes a mounting plate 20, a housing 21 fixed to the rear end face of the mounting plate 20, and an open front end face of the housing 21. A toothed ring 22 is rotatably installed inside the opening of the housing 21. The lead screw 1 passes through the toothed ring 22 and is coaxially fixed to the toothed ring 22. A movable plate 23 is provided below the toothed ring 22. A toothed block 230 that meshes with the toothed ring 22 is fixed to the top of the movable plate 23. Guide rods 24 are fixed at both ends of the bottom of the movable plate 23. The guide rods 24 pass through the bottom of the housing 21 and are slidably connected to the housing 21. A spring 25 for pressing against the movable plate 23 is sleeved on the outside of the guide rods 24. Connecting rods 26 are fixed at both ends of the top of the movable plate 23. The top end of the connecting rods 26 passes through the top of the housing 21 and is slidably connected to the housing 21.

[0027] In this embodiment, a pressure plate 27 is fixed between the top ends of the two connecting rods 26, and the pressure plate 27 is fixedly connected to the connecting rods 26 by bolts. The pressure plate 27 facilitates the adjustment of the height of the movable plate 23 and the toothed block 230, thereby facilitating the operation of the lead screw 1.

[0028] In this embodiment, the housing 21 is fixedly connected to the mounting plate 20 by bolts. Both the mounting plate 20 and the housing 21 are made of stainless steel. This connection method facilitates disassembly and installation, making equipment maintenance and component replacement easier. Stainless steel has excellent corrosion resistance, high temperature resistance, and high strength, enabling it to maintain the stability and durability of the equipment in harsh environments. Furthermore, stainless steel is easy to clean and maintain, extending the service life of the equipment.

[0029] In this embodiment, mounting holes 201 are provided at all four corners of the mounting plate 20, and the mounting holes 201 penetrate the mounting plate 20. The design of the mounting holes 201 allows the mounting plate 20 to be easily fixed to the mounting platform.

[0030] In this embodiment, the movable plate 23 and the toothed block 230 are integrally formed, and the toothed block 230 is formed by turning. The integrally formed structure improves the mechanical strength and overall stability of the movable plate 23 and the toothed block 230, reduces the risk of failure caused by loosening or damage of connecting parts, and ensures the limiting effect on the toothed ring 22. The turning process can precisely control the shape and size of the toothed block 230, ensuring a good fit between the toothed block 230 and the toothed ring 22.

[0031] In this embodiment, a through hole 200 is provided at the center of the mounting plate 20, through which the lead screw 1 passes. The through hole design allows the lead screw 1 to pass smoothly through the mounting plate 20, realizing an effective connection between the lead screw 1 and the transmission component.

[0032] In this embodiment, the movable plate 23 and the guide rod 24 are integrally formed structures, both made of stainless steel. This integral forming structure improves the overall rigidity and stability of the movable plate 23 and the guide rod 24, ensuring the smoothness and precision of the equipment during operation.

[0033] It should be added that the inner wall of the toothed ring 22 in this embodiment is provided with a keyway 220. The lead screw 1 is connected to the toothed ring 22 via the keyway 220. The key connection can accurately transmit rotational motion and torque, which meets the transmission requirements. Using this connection method ensures a stable connection between the lead screw 1 and the toothed ring 22.

[0034] When the toothed block 230 meshes with the toothed ring 22, the toothed block 230 limits the toothed ring 22, preventing the toothed ring 22 from rotating, and the lead screw 1 is locked.

[0035] When it is necessary to rotate the lead screw 1, the user presses down on the pressure plate 27. The pressure plate 27 drives the connecting rod 26 and the movable plate 23 to move downward. The movable plate 23 then drives the guide rod 24 to move downward. The spring 25 is compressed by the movable plate 23. At this time, the connecting rod 26 drives the toothed block 230 on the movable plate 23 to disengage from the toothed ring 22. At this time, the restriction of the toothed block 230 on the toothed ring 22 is released, and finally the user can rotate the lead screw 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing loosening of an adjusting screw, characterized in that: Includes a limiting component (2) installed at the rear end of the lead screw (1); The limiting component (2) includes a mounting plate (20), a housing (21) is fixed to the rear end face of the mounting plate (20), the front end face of the housing (21) is open, a toothed ring (22) is rotatably installed in the opening of the housing (21), a lead screw (1) passes through the toothed ring (22) and is fixed coaxially with the toothed ring (22), a movable plate (23) is provided below the toothed ring (22), a toothed block (230) that meshes with the toothed ring (22) is fixed to the top of the movable plate (23); a guide rod (24) is fixed at both ends of the bottom of the movable plate (23), the guide rod (24) passes through the bottom of the housing (21) and is slidably connected to the housing (21), a spring (25) for pressing against the movable plate (23) is sleeved on the outside of the guide rod (24); a connecting rod (26) is fixed at both ends of the top of the movable plate (23), the top end of the connecting rod (26) passes through the top of the housing (21) and is slidably connected to the housing (21).

2. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: A pressure plate (27) is fixed between the top ends of the two connecting rods (26), and the pressure plate (27) is fixedly connected to the connecting rods (26) by bolts.

3. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: The housing (21) is fixedly connected to the mounting plate (20) by bolts. Both the mounting plate (20) and the housing (21) are made of stainless steel.

4. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: Mounting holes (201) are provided at all four corners of the mounting plate (20), and the mounting holes (201) penetrate the mounting plate (20).

5. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: The movable plate (23) and the tooth block (230) are integrally formed, and the tooth block (230) is formed by turning process.

6. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: The mounting plate (20) has a through hole (200) at its center, and the lead screw (1) passes through the through hole (200).

7. The anti-loosening device for the adjusting screw according to claim 1, characterized in that: The movable plate (23) and the guide rod (24) are integrally formed structures, and both the movable plate (23) and the guide rod (24) are made of stainless steel.

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