Adjustable pressure fastener

Abstract

This utility model relates to the field of screw technology, specifically an adjustable pressure fastening screw, comprising a hexagonal block, a threaded rod at the bottom of the hexagonal block, a nut on the outside of the threaded rod, a mounting sleeve at the bottom of the nut, a spring plate inside the mounting sleeve, a limit groove inside the mounting sleeve, a limit sleeve inside the limit groove, a one-way gear on the outside of the limit sleeve, and a support plate A at the bottom of the limit sleeve. This adjustable pressure fastening screw, by adding the hexagonal block, facilitates the rotation of the threaded rod; by adding the nut, it compresses and supports the spring; the cooperation of the limit groove and the limit sleeve prevents the nut, mounting sleeve, and support plate A from separating; and the cooperation of the one-way gear and the spring plate prevents the nut from rotating accidentally.

Description

Technical Field

[0001] This utility model relates to the field of screw technology, specifically to an adjustable pressure fastening screw. Background Technology

[0002] Screws are tools that use the physical and mathematical principles of inclined planes, circular rotation, and friction to gradually tighten objects and machine parts. "Screw" is a general term for fasteners and a common colloquial expression. Screws are indispensable industrial necessities in daily life: tiny screws are used in cameras, eyeglasses, watches, and electronics; general screws are used in televisions, electrical appliances, musical instruments, and furniture; large screws and nuts are used in engineering, construction, and bridges; and various sizes of screws are used in transportation equipment, airplanes, trams, and automobiles. Screws play a vital role in industry, and as long as industry exists on Earth, the function of screws will always be important. The function of pressure-fastening screws is to use their own elasticity to elastically hold and fix workpieces, making them less prone to loosening or falling off.

[0003] Currently available adjustable pressure fasteners have a separate design for the support plate and nut, and lack a limiting structure between the nut and the support plate. As a result, the nut may loosen during use. Therefore, there is an urgent need for an adjustable pressure fastener to improve these issues. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide an adjustable pressure fastening screw to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides an adjustable pressure fastening screw, comprising a hexagonal block, a threaded rod at the bottom of the hexagonal block, a nut on the outer side of the threaded rod, a mounting cylinder at the bottom of the nut, a spring plate inside the mounting cylinder, a limiting groove inside the mounting cylinder, a limiting cylinder inside the limiting groove, a one-way gear on the outer side of the limiting cylinder, a support plate A at the bottom of the limiting cylinder, a support spring at the bottom of the support plate A, a support plate B at the bottom of the support spring, and a support plate at the bottom of the support plate B.

[0007] Preferably, the hexagonal block is fixedly connected to the threaded rod, the threaded rod is adapted to the nut, and the mounting sleeve is fixedly connected to the nut.

[0008] By adopting the above technical solution, the hexagonal block is fixedly connected to the threaded rod, which facilitates the rotation of the threaded rod.

[0009] Preferably, the spring plate is fixedly connected to the inside of the mounting cylinder, the one-way gear is fixedly connected to the limiting cylinder, and the spring plate is adapted to the one-way gear.

[0010] By adopting the above technical solution, the spring plate is adapted to the one-way gear, which can prevent the nut from reversing.

[0011] Preferably, the limiting cylinder is rotatably connected to the inside of the limiting groove, and the support plate A is fixedly connected to the limiting cylinder.

[0012] By adopting the above technical solution, the limiting cylinder is rotatably connected inside the limiting groove, which plays a role in preventing the support spring from rotating.

[0013] Preferably, the two ends of the support spring are respectively engaged with the interior of support plate A and support plate B, and the support plate is slidably connected to the outside of the threaded rod.

[0014] By adopting the above technical solution, the two ends of the support spring are respectively engaged with the interior of support plate A and support plate B, thereby providing pressure.

[0015] Preferably, both the support plate B and the support plate A are slidably connected to the outside of the threaded rod.

[0016] By adopting the above technical solution, both support plate B and support plate A are slidably connected to the outside of the threaded rod, which serves to clamp and support the spring.

[0017] In summary, the beneficial technical effects of this utility model are as follows:

[0018] This adjustable pressure fastening screw, with the addition of a hexagonal block, facilitates the rotation of the threaded rod. The addition of a nut compresses the supporting spring. The use of a limiting groove and a limiting sleeve ensures that the nut, mounting sleeve, and support plate A are inseparable. The use of a one-way gear and a spring plate prevents accidental rotation of the nut. The use of support plates A and B engages to lock the supporting spring. By using this structure, the nut and support plate A are designed to be inseparable, and the added limiting structure effectively prevents the nut from loosening during use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spring plate and one-way gear of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mounting cylinder of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of tray A of this utility model.

[0023] In the diagram: 1. Hexagonal block; 2. Threaded rod; 3. Nut; 4. Mounting cylinder; 5. Spring plate; 6. Limiting groove; 7. Limiting cylinder; 8. One-way gear; 9. Support plate A; 10. Support spring; 11. Support plate B; 12. Support 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 of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 4 This utility model discloses an adjustable pressure fastening screw, comprising a hexagonal block 1, a threaded rod 2 at the bottom of the hexagonal block 1, a nut 3 on the outside of the threaded rod 2, a mounting cylinder 4 at the bottom of the nut 3, a spring plate 5 inside the mounting cylinder 4, a limit groove 6 inside the mounting cylinder 4, a limit cylinder 7 inside the limit groove 6, a one-way gear 8 on the outside of the limit cylinder 7, a support plate A9 at the bottom of the limit cylinder 7, a support spring 10 at the bottom of the support plate A9, a support plate B11 at the bottom of the support spring 10, and a support plate 12 at the bottom of the support plate B11. In this embodiment, the hexagonal block 1 drives the threaded rod 2 to rotate, the threaded rod 2 facilitates the rotation of the nut 3, and the nut 3 changes the stroke of the threaded rod 2.

[0026] Reference Figure 1 The hexagonal block 1 is fixedly connected to the threaded rod 2, the threaded rod 2 is adapted to the nut 3, and the mounting cylinder 4 is fixedly connected to the nut 3. In this embodiment, the mounting cylinder 4 serves to connect the nut 3.

[0027] Reference Figure 2 The spring plate 5 is fixedly connected to the inside of the mounting cylinder 4, and the one-way gear 8 is fixedly connected to the limiting cylinder 7. The spring plate 5 and the one-way gear 8 are adapted to each other. In this embodiment, the spring plate 5 plays the role of locking the one-way gear 8, and the one-way gear 8 plays the role of limiting.

[0028] Reference Figure 3 and Figure 4The limiting cylinder 7 is rotatably connected to the inside of the limiting groove 6, and the support plate A9 is fixedly connected to the limiting cylinder 7. In this embodiment, the limiting cylinder 7 facilitates the rotation of the mounting cylinder 4, the limiting groove 6 facilitates the rotation of the limiting cylinder 7, and the support plate A9 serves to engage and support the spring 10.

[0029] Reference Figure 1 and Figure 4 The two ends of the support spring 10 are respectively engaged with the inside of the support plate A9 and the support plate B11. The support plate 12 is slidably connected to the outside of the threaded rod 2. The support plate B11 and the support plate A9 are both slidably connected to the outside of the threaded rod 2. In this embodiment, the support spring 10 plays the role of providing pressure, and the support plate B11 plays the role of engaging the support spring 10.

[0030] The working principle of this utility model is as follows:

[0031] When pressure needs to be adjusted, a tool is needed to rotate the nut 3. During the rotation of the nut 3, the threaded rod 2 will be stationary. By changing the position of the nut 3, the travel that the threaded rod 2 can use is changed. When the threaded rod 2 is in motion, the support spring 10 will be continuously compressed until the threaded rod 2 can no longer rotate.

[0032] If the threaded hole for mounting threaded rod 2 cannot cover the remaining stroke of threaded rod 2, a tool is needed to rotate nut 3. During the rotation of nut 3, it can push support plate A9 towards support plate B11. Since support plate 12, support plate A9, and support plate B11 are all under the pressure of support spring 10, support plate B11 and support plate 12 cannot rotate, which also prevents support spring 10 from rotating. Therefore, when nut 3 is rotated, nut 3 will drive mounting cylinder 4 to rotate. Mounting cylinder 4 rotates outside of limit cylinder 7. Since limit cylinder 7 is rotatably connected to the inside of limit groove 6, mounting cylinder 4 and support plate A9 are rotatably connected. Thus, when the distance between support plate A9 and support plate B11 is changed, support plate A9, support spring 10, and support plate B11 are all stationary, preventing support spring 10 from being damaged due to rotation.

[0033] Furthermore, as the nut 3 drives the mounting cylinder 4 to rotate, the mounting cylinder 4 will drive the spring plate 5 to rotate together, causing the spring plate 5 to slide on the outside of the one-way gear 8. After the spring plate 5 passes through the teeth of the one-way gear 8, it will be engaged with one side of the teeth to prevent the nut 3 from rotating in the opposite direction. This achieves the effect that the nut 3 cannot be rotated in the opposite direction without rotating the threaded rod 2, thereby preventing the nut 3 from loosening during the operation of the screw.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] By adding hexagonal block 1, the threaded rod 2 can be easily rotated. By adding nut 3, the spring 10 can be compressed. The use of limiting groove 6 and limiting cylinder 7 makes it impossible for nut 3, mounting cylinder 4 and support plate A9 to be separated. The use of one-way gear 8 and spring plate 5 prevents nut 3 from rotating accidentally. The use of support plate A9 and support plate B11 locks the support spring 10 in place. By using the above structure, nut 3 and support plate A9 are designed to be inseparable, and the added limiting structure can effectively prevent nut 3 from loosening during use.

[0036] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An adjustable pressure fastening screw, characterized in that: The device includes a hexagonal block (1), a threaded rod (2) at the bottom of the hexagonal block (1), a nut (3) on the outside of the threaded rod (2), an installation cylinder (4) at the bottom of the nut (3), a spring plate (5) inside the installation cylinder (4), a limiting groove (6) inside the installation cylinder (4), a limiting cylinder (7) inside the limiting groove (6), a one-way gear (8) on the outside of the limiting cylinder (7), a support plate A (9) at the bottom of the limiting cylinder (7), a support spring (10) at the bottom of the support plate A (9), a support plate B (11) at the bottom of the support spring (10), and a support plate (12) at the bottom of the support plate B (11).

2. The adjustable pressure fastening screw according to claim 1, characterized in that: The hexagonal block (1) is fixedly connected to the threaded rod (2), the threaded rod (2) is adapted to the nut (3), and the mounting cylinder (4) is fixedly connected to the nut (3).

3. The adjustable pressure fastening screw according to claim 1, characterized in that: The spring plate (5) is fixedly connected to the inside of the mounting cylinder (4), the one-way gear (8) is fixedly connected to the limiting cylinder (7), and the spring plate (5) is adapted to the one-way gear (8).

4. The adjustable pressure fastening screw according to claim 1, characterized in that: The limiting cylinder (7) is rotatably connected to the inside of the limiting groove (6), and the tray A (9) is fixedly connected to the limiting cylinder (7).

5. The adjustable pressure fastening screw according to claim 1, characterized in that: The two ends of the support spring (10) are respectively engaged with the interior of the support plate A (9) and the support plate B (11), and the support plate (12) is slidably connected to the outside of the threaded rod (2).

6. The adjustable pressure fastening screw according to claim 1, characterized in that: Both the support plate B (11) and the support plate A (9) are slidably connected to the outside of the threaded rod (2).

Images