Corrosion-resistant anti-deformation double-thread screw

Abstract

The utility model relates to the technical field of double-thread screws, and discloses a corrosion-resistant anti-deformation double-thread screw which comprises a double-thread screw body, an installation sleeve is fixedly arranged on the outer side of the double-thread screw body, and sliding grooves are formed in the left side and the right side of the installation sleeve. Through the arrangement of the mounting sleeve, the spring, the sliding plates and the first sealing gasket, the sliding plates on the two sides are pressed towards the interiors of the sliding grooves, then the two ends of the double-thread screw body can be inserted into the mounting positions, and the sliding plates are loosened; the sliding plates on the two sides can push the first sealing gasket to be attached to the side wall of the installation part under the action of resilience force of the springs. By arranging a second sealing gasket, a protective sleeve and a third sealing gasket, a person screws a hexagon nut through a first screw and the protective sleeve and a second screw, at the moment, the second sealing gasket can be attached to the side wall of an installation part, the third sealing gasket can be attached to the side wall in a sealing groove, and a gap between the second sealing gasket and the third sealing gasket can be shielded and protected; and permeation corrosion of rainwater can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of double - headed screws, and particularly relates to a corrosion - resistant and deformation - proof double - headed screw. Background Technique

[0002] A screw is a tool that uses the physical and mathematical principles of the inclined - plane circle rotation and friction of an object to gradually fasten the machine parts step by step. A screw is a general term for fasteners and is an indispensable industrial necessity in daily life.

[0003] Among them, both ends of a double - headed screw have threads, and the middle screw can be thick or thin. It is generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, tower cranes, large - span steel structures, and large buildings, etc.

[0004] At present, the screw structures on the market have strong structural strength and good anti - deformation performance. However, most of them are installed and used outdoors. When encountering rainy and humid weather, they are easily affected by wind and rain and gradually corroded, thus reducing their service life. Moreover, after corrosion, they are prone to jamming, and subsequent disassembly is very troublesome. Content of the Utility Model

[0005] The purpose of the utility model is to provide a corrosion - resistant and deformation - proof double - headed screw, which can solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A corrosion - resistant and deformation - proof double - headed screw, including a double - headed screw body, an installation sleeve is fixedly arranged on the outer side of the double - headed screw body. Chutes are opened on both the left and right sides of the installation sleeve. A plurality of springs are fixedly arranged on the inner side of the chute. The other end of the spring is fixedly provided with a sliding plate. A sealing gasket I is fixedly arranged on the outer side of the sliding plate. Screw I is fixedly arranged on both the left and right sides of the double - headed screw body. Screw II is fixedly arranged at the other end of the screw I. A hexagonal nut is threadedly connected to the outer side of the screw I. A protective sleeve is sleeved on the outer side of the screw II. A sealing gasket II is arranged on the inner side of the hexagonal nut. A sealing gasket III is arranged on the inner side of the protective sleeve.

[0007] Preferably, an installation groove I is opened on the inner side of the hexagonal nut, and the sealing gasket II is arranged inside the installation groove I.

[0008] Preferably, an installation groove II is opened on the inner side of the protective sleeve, and the sealing gasket III is arranged inside the installation groove II.

[0009] Preferably, a sealing groove is opened on the outer side of the hexagonal nut, and the sealing gasket III is matched with the sealing groove.

[0010] Preferably, a relief groove is opened on the inner side of the protective sleeve.

[0011] Preferably, a thread groove is provided on the inner side of the clearance groove, and the thread groove matches the second screw.

[0012] Preferably, the threads of screw one and screw two are opposite.

[0013] Compared with the prior art, the utility model provides a corrosion-resistant and deformation-resistant double-head screw, which has the following beneficial effects:

[0014] 1. The utility model is provided with an installation sleeve, a spring, a sliding plate, and a sealing gasket. A person presses the sliding plates on both sides toward the inside of the slide groove, and then inserts the two ends of the double-headed screw body into the installation position. The sliding plates are loosened, and the sliding plates on both sides are acted upon by the spring rebound force, so that the sealing gasket and the side wall of the installation position can be pushed to fit each other, thereby protecting the gap therebetween.

[0015] 2. The utility model provides sealing gasket 2, protective sleeve and sealing gasket 3. When the personnel tightens the hexagonal nut through screw 1, sealing gasket 2 can fit together with the side wall of the installation part. When the protective sleeve is tightened through screw 2, sealing gasket 3 can fit together with the side wall inside the sealing groove, so as to play a role of shielding and protecting the gap therebetween, avoid the penetration and corrosion of rainwater, and thus ensure the service life of the double-headed screw body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without a protective cover;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0020] Among them: 1. Double-head screw body; 2. Mounting sleeve; 3. Slide groove; 4. Spring; 5. Sliding plate; 6. Sealing gasket 1; 7. Screw 1; 8. Screw 2; 9. Hexagonal nut; 10. Mounting groove 1; 11. Sealing gasket 2; 12. Sealing groove; 13. Protective sleeve; 14. Mounting groove 2; 15. Sealing gasket 3; 16. Thread groove; 17. Give way groove. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-4 , in the figure, there is a corrosion-resistant and deformation-proof double-headed screw, including a double-headed screw body 1. An installation sleeve 2 is fixedly arranged on the outer side of the double-headed screw body 1. Chutes 3 are opened on both the left and right sides of the installation sleeve 2. A plurality of springs 4 are fixedly arranged on the inner side of the chutes 3. The other ends of the springs 4 are fixedly provided with sliding plates 5. A sealing gasket one 6 is fixedly arranged on the outer side of the sliding plate 5. Screw rods one 7 are fixedly arranged on both the left and right sides of the double-headed screw body 1. The other ends of the screw rods one 7 are fixedly provided with screw rods two 8. A hexagonal nut 9 is threadedly connected to the outer side of the screw rod one 7. A protective sleeve 13 is sleeved on the outer side of the screw rod two 8. A sealing gasket two 11 is arranged on the inner side of the hexagonal nut 9. A sealing gasket three 15 is arranged on the inner side of the protective sleeve 13.

[0024] Please refer to Figure 4 , an installation groove one 10 is opened on the inner side of the hexagonal nut 9, and the sealing gasket two 11 is arranged inside the installation groove one 10.

[0025] In this embodiment: The opening of the installation groove one 10 facilitates the installation of the sealing gasket two 11. When the personnel tighten the hexagonal nut 9, the sealing gasket two 11 on the hexagonal nut 9 can thus fit with the side wall of the installation part, thereby playing a role in sealing the gap therebetween.

[0026] Please refer to Figure 4 , an installation groove two 14 is opened on the inner side of the protective sleeve 13, and the sealing gasket three 15 is arranged inside the installation groove two 14.

[0027] In this embodiment: The opening of the installation groove two 14 facilitates the installation of the sealing gasket three 15. The setting of the sealing gasket three 15 can play a role in sealing the gap between the hexagonal nut 9 and the protective sleeve 13.

[0028] Please refer to Figure 4 , a sealing groove 12 is opened on the outer side of the hexagonal nut 9, and the sealing gasket three 15 is matched with the sealing groove 12.

[0029] In this embodiment: When the personnel tighten the protective sleeve 13, the sealing gasket three 15 can fit with the inner wall of the sealing groove 12, thereby playing a role in sealing the gap between the hexagonal nut 9 and the protective sleeve 13.

[0030] Working principle: The operator presses the sliding plates 5 on both sides into the inside of the sliding groove 3. At this time, the spring 4 is compressed. Then, the two ends of the double-headed screw body 1 are inserted into the installation position. After releasing the sliding plates 5, the sliding plates 5 on both sides are pushed by the resilience of the spring 4, so that the first sealing gasket 6 can be attached to the side wall of the installation position. Thus, the first sealing gasket 6 can play a protective role for the gap between them; the operator tightens the hexagonal nut 9 on the outside of the installation position through the first screw 7. At this time, the second sealing gasket 11 can be attached to the side wall of the installation position. The protective sleeve 13 is tightened on the outside of the hexagonal nut 9 through the second screw 8. At this time, the third sealing gasket 15 can be attached to the side wall inside the sealing groove 12, so that it can play a role in shielding and protecting the gap between them, and can prevent rainwater from corroding and rusting the first screw 7 and the second screw 8, ensuring the service life of the double-headed screw body 1. When the operator disassembles it later, it is also very convenient and there will be no phenomenon of rust jamming.

[0031] Embodiment 2

[0032] Please refer to Figure 3 , this embodiment further illustrates Embodiment 1. A relief groove 17 is provided on the inner side of the protective sleeve 13 in the figure.

[0033] In this embodiment: The provision of the relief groove 17 can play a role of making way, so that the protective sleeve 13 can be sleeved on the outside of the first screw 7 and the second screw 8, so that it can play a role of protecting and shielding the first screw 7 and the second screw 8 and preventing them from being eroded by rainwater.

[0034] Please refer to Figure 3 , a thread groove 16 is provided on the inner side of the relief groove 17, and the thread groove 16 matches the second screw 8.

[0035] In this embodiment: The provision of the thread groove 16 facilitates the protective sleeve 13 to be tightened on the double-headed screw body 1 through the second screw 8, so that the protective sleeve 13 can play a protective role for the double-headed screw body 1.

[0036] Please refer to Figure 2 , the threads of the first screw 7 and the second screw 8 are opposite.

[0037] In this embodiment: The threads of the first screw 7 and the second screw 8 are opposite, so that the protective sleeve 13 can play a certain role in restricting the loosening of the hexagonal nut 9, and can increase the fastening reliability of the double-headed screw body 1.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" - "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process - method - article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process - method - article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant and deformation-resistant double-ended screw, comprising a double-ended screw body (1), characterized in that: A mounting sleeve (2) is fixedly provided on the outer side of the double-headed screw body (1), and a slide groove (3) is provided on both the left and right sides of the mounting sleeve (2), and a plurality of springs (4) are fixedly provided on the inner side of the slide groove (3), and a sliding plate (5) is fixedly provided on the other end of the spring (4), and a sealing gasket (6) is fixedly provided on the outer side of the sliding plate (5), and a screw rod (7) is fixedly provided on both the left and right sides of the double-headed screw body (1), and a screw rod (8) is fixedly provided on the other end of the screw rod (7), and a hexagonal nut (9) is threadedly connected to the outer side of the screw rod (7), and a protective sleeve (13) is sleeved on the outer side of the screw rod (8), and a sealing gasket (2) (11) is provided on the inner side of the hexagonal nut (9), and a sealing gasket (3) (15) is provided on the inner side of the protective sleeve (13).

2. The corrosion-resistant and deformation-resistant double-head screw according to claim 1, characterized in that: The inner side of the hexagonal nut (9) is provided with a mounting groove (10), and the sealing gasket (11) is arranged inside the mounting groove (10).

3. The corrosion-resistant and deformation-resistant double-head screw according to claim 1, characterized in that: The inner side of the protective sleeve (13) is provided with a second installation groove (14), and the third sealing gasket (15) is arranged inside the second installation groove (14).

4. The corrosion-resistant and deformation-resistant double-head screw according to claim 1, characterized in that: A sealing groove (12) is provided on the outer side of the hexagonal nut (9), and the sealing gasket (15) and the sealing groove (12) are matched with each other.

5. The corrosion-resistant and deformation-resistant double-head screw according to claim 1, characterized in that: A clearance groove (17) is provided on the inner side of the protective sleeve (13).

6. The corrosion-resistant and deformation-resistant double-head screw according to claim 5, characterized in that: A thread groove (16) is provided on the inner side of the clearance groove (17), and the thread groove (16) matches the second screw rod (8).

7. The corrosion-resistant and deformation-resistant double-head screw according to claim 1, characterized in that: The threads of the screw rod 1 (7) and the screw rod 2 (8) are opposite.

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