Composite sealing screw

Abstract

The utility model relates to the technical field of screws, and discloses a combined type sealing screw which comprises a nut and a screw rod, the screw rod is arranged at the lower end of the nut, a first sliding groove is formed in the nut, a through hole is formed in the outer surface of the nut, and a first limiting hole and a second limiting hole are formed in the upper surface of the nut. One end of the through hole, one end of the first limiting hole and one end of the second limiting hole extend into the first sliding groove, a dismounting structure is installed in the first sliding groove and comprises a rectangular block, a sliding block, a first spring, a second spring and a limiting block, the first spring is installed on the inner surface of the first sliding groove, and the sliding block is installed at the other end of the first spring; rectangular blocks are installed at the ends, away from the first springs, of the sliding blocks and slidably connected into the through holes, and second sliding grooves are formed in the upper surfaces of the sliding blocks. By means of the dismounting structure, the screw can be turned manually without the help of a screwdriver, and use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a composite sealing screw. Background Art

[0002] Screws are a commonly used fastener, which is usually used to fasten two relatively independent objects together, and is therefore widely used in various fields.

[0003] The utility model patent application document with publication number "CN201425050Y" discloses a composite sealing screw, which is mainly composed of a screw and a sealing ring. This technical solution solves the problems of poor sealing performance of existing screws, easy waste of working medium and environmental pollution, and short service life.

[0004] The composite sealing screw disclosed in the above document has the following defects: during the process of tightening or loosening, the composite sealing screw usually requires a screwdriver to overcome the resistance during twisting. If the staff does not have a screwdriver or other tools at hand, the screw cannot be unscrewed, which has poor practicality.

[0005] It can be seen from this that the existing composite sealing screw does not have a structure that is convenient for removal, and it is necessary to improve the existing deficiencies and provide a composite sealing screw. Utility Model Content

[0006] The purpose of the utility model is to provide a composite sealing screw to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a composite sealing screw, comprising a nut and a screw rod, the lower end of the nut is provided with a screw rod, the interior of the nut is provided with a first sliding groove, the outer surface of the nut is provided with a through hole, the upper surface of the nut is provided with a first limiting hole and a second limiting hole, one end of the through hole, the first limiting hole and the second limiting hole all extend into the interior of the first sliding groove, the first sliding groove, the through hole, the first limiting hole and the second limiting hole are fixed as two and symmetrically arranged, the interior of the first sliding groove is provided with a disassembly structure, the disassembly structure comprises a rectangular block, a slider, a first spring, a second spring and a limiting block, the first spring is installed on the inner surface of the first sliding groove, the other end of the first spring is provided with a slider, the end of the slider away from the first spring is provided with a rectangular block, the rectangular block is slidably connected to the interior of the through hole, the upper surface of the slider is provided with a second sliding groove, the inner surface of the second sliding groove is provided with a second spring, the other end of the second spring is provided with a limiting block, and the limiting block is slidably connected to the interior of the first limiting hole.

[0009] Furthermore, the outer surface of the rectangular block is provided with anti-slip stripes.

[0010] Furthermore, a first mounting groove is formed on the upper surface of the nut.

[0011] Furthermore, a second installation groove is formed on the lower surface of the nut, and a sealing structure is installed inside the second installation groove.

[0012] Furthermore, the sealing structure comprises a sealing ring and an arc-shaped sealing sheet, the lower surface of the sealing ring is installed with the arc-shaped sealing sheet, and the sealing ring is installed in the second installation groove.

[0013] Furthermore, a limiting groove is provided on the inner surface of the second installation groove, a limiting ring is installed on the outer surface of the sealing ring, and the limiting ring is installed in the limiting groove.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model presses the limit block so that the limit block moves toward the inside of the second slide groove, and the second spring gradually contracts. When the outer surface of the limit block is flush with the inner surface of the first slide groove, the first spring restores its elasticity and pushes the slider to move inside the first slide groove, so that the rectangular block extends from the inside of the through hole to the outside. When the first spring fully restores its elasticity, the limit block is located directly below the second limit hole. At the same time, the limit block and the first slide groove are no longer abutted. The second spring restores its elasticity and pushes the limit block to move upward, so that the limit block is located inside the second limit hole, completing the fixation of the nut and the rectangular block. When the two rectangular blocks are fully extended, hold the rectangular block and then turn it counterclockwise to loosen the screw to complete the disassembly. It is relatively convenient and quick to use.

[0016] (2) The utility model can provide the screw with good sealing and waterproof properties by setting a sealing structure, thereby achieving the effect of extending the service life of the screw.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model when the rectangular block is closed;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when the rectangular block is extended;

[0021] Figure 3 It is a partial structural cross-sectional view of the utility model;

[0022] Figure 4 This is a cross-sectional view of the nut structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the disassembly structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the sealing structure of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. nut; 101. first slide groove; 102. through hole; 103. first limiting hole; 104. second limiting hole; 105. first mounting groove; 106. second mounting groove; 107. limiting groove; 2. screw; 3. disassembly structure; 301. rectangular block; 302. slider; 303. first spring; 304. second spring; 305. limiting block; 4. sealing structure; 401. sealing ring; 402. arc-shaped sealing sheet; 5. limiting ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 6As shown, the utility model is a composite sealing screw, including a nut 1 and a screw 2, the lower end of the nut 1 is provided with the screw 2, the interior of the nut 1 is provided with a first slide groove 101, the outer surface of the nut 1 is provided with a through hole 102, the upper surface of the nut 1 is provided with a first limiting hole 103 and a second limiting hole 104, one end of the through hole 102, the first limiting hole 103 and the second limiting hole 104 all extend to the interior of the first slide groove 101, the first slide groove 101, the through hole 102, the first limiting hole 103 and the second limiting hole 104 are fixed as two and symmetrically arranged, the interior of the first slide groove 101 is installed with a disassembly structure 3, and the disassembly structure 3 comprises a rectangular block 301, a slider 302, a first spring 303, a second spring 304 and a limit block 305, wherein the first spring 303 is mounted on the inner surface of the first slide groove 101, the slider 302 is mounted on the other end of the first spring 303, the rectangular block 301 is mounted on one end of the slider 302 away from the first spring 303, the rectangular block 301 is slidably connected inside the through hole 102, the second slide groove is formed on the upper surface of the slider 302, the second spring 304 is mounted on the inner surface of the second slide groove, the limit block 305 is mounted on the other end of the second spring 304, and the limit block 305 is slidably connected inside the first limit hole 103.

[0029] The outer surface of the rectangular block 301 is provided with anti-slip stripes.

[0030] A first mounting groove 105 is formed on the upper surface of the nut 1 .

[0031] A second mounting groove 106 is formed on the lower surface of the nut 1 , and a sealing structure 4 is installed inside the second mounting groove 106 .

[0032] The sealing structure 4 includes a sealing ring 401 and an arc-shaped sealing sheet 402 . The arc-shaped sealing sheet 402 is installed on the lower surface of the sealing ring 401 . The sealing ring 401 is installed in the second installation groove 106 .

[0033] The inner surface of the second installation groove 106 is provided with a limiting groove 107 . The outer surface of the sealing ring 401 is provided with a limiting ring 5 . The limiting ring 5 is installed in the inner part of the limiting groove 107 .

[0034] When in use, as the nut 1 is screwed, the portion where the arc-shaped sealing sheet 402 and the screw 2 are connected will be continuously compressed, and the sealing effect of the two will become stronger as the screwing process proceeds, thereby preventing external liquid from entering the threaded connection of the screw from the connection between the arc-shaped sealing sheet 402 and the screw 2. When the screw needs to be removed, the limit block 305 is pressed to move toward the inside of the second slide groove, and the second spring 304 gradually contracts. When the outer surface of the limit block 305 is flush with the inner surface of the first slide groove 101, the first spring 303 restores its elasticity, pushing the slider 302 to move inside the first slide groove 101 , so that the rectangular block 301 extends outward from the inside of the through hole 102. When the first spring 303 fully recovers its elasticity, the limit block 305 is located directly below the second limit hole 104. At the same time, the limit block 305 and the first slide groove 101 are no longer in contact. The second spring 304 recovers its elasticity and pushes the limit block 305 to move upward, so that the limit block 305 is located inside the second limit hole 104, completing the fixation of the nut 1 and the rectangular block 301. When the two rectangular blocks 301 are fully extended, hold the rectangular block 301 and then rotate it counterclockwise to loosen the screws to complete the disassembly. It is convenient and quick to use.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A composite sealing screw, comprising a nut (1) and a screw (2), characterized in that: A screw rod (2) is provided at the lower end of the nut (1), a first slide groove (101) is provided inside the nut (1), a through hole (102) is provided on the outer surface of the nut (1), a first limiting hole (103) and a second limiting hole (104) are provided on the upper surface of the nut (1), one end of the through hole (102), the first limiting hole (103) and the second limiting hole (104) all extend to the inside of the first slide groove (101), the first slide groove (101), the through hole (102), the first limiting hole (103) and the second limiting hole (104) are fixed as two and symmetrically arranged, and a disassembly structure (3) is installed inside the first slide groove (101); The disassembly structure (3) comprises a rectangular block (301), a slider (302), a first spring (303), a second spring (304) and a limit block (305); the first spring (303) is mounted on the inner surface of the first slide groove (101); the other end of the first spring (303) is mounted with the slider (302); the end of the slider (302) away from the first spring (303) is mounted with the rectangular block (301); the rectangular block (301) is slidably connected inside the through hole (102); the upper surface of the slider (302) is provided with a second slide groove; the inner surface of the second slide groove is mounted with the second spring (304); the other end of the second spring (304) is mounted with the limit block (305); the limit block (305) is slidably connected inside the first limit hole (103).

2. A composite sealing screw according to claim 1, characterized in that: The outer surface of the rectangular block (301) is provided with anti-slip stripes.

3. The composite sealing screw according to claim 1, characterized in that: The upper surface of the nut (1) is provided with a first mounting groove (105).

4. The composite sealing screw according to claim 1, characterized in that: A second installation groove (106) is provided on the lower surface of the nut (1), and a sealing structure (4) is installed inside the second installation groove (106).

5. A composite sealing screw according to claim 4, characterized in that: The sealing structure (4) comprises a sealing ring (401) and an arc-shaped sealing sheet (402); the arc-shaped sealing sheet (402) is installed on the lower surface of the sealing ring (401); and the sealing ring (401) is installed in cooperation inside the second installation groove (106).

6. A composite sealing screw according to claim 5, characterized in that: A limiting groove (107) is provided on the inner surface of the second installation groove (106), a limiting ring (5) is installed on the outer surface of the sealing ring (401), and the limiting ring (5) is installed in cooperation with the inside of the limiting groove (107).

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