Sealing screw with anti-reversion component

Abstract

The utility model discloses a sealing screw with an anti-reversion component, which comprises a screw rod, a screw cap is arranged above the screw rod, and the sealing screw with the anti-reversion component further comprises a limiting device arranged above the screw rod; the sealing device is arranged above the screw rod; wherein the limiting device can prevent the screw from reversion, and the sealing device can improve the sealing performance of the sealing screw with the anti-reversion component. According to the sealing screw with the anti-reversion component, the screw rod, the nut and the limiting device are matched, after the sealing screw with the anti-reversion component is installed, a worker can separate the nut from the screw rod, and therefore the phenomenon that the screw rod is damaged when the nut is subjected to external force can be avoided. And the screw rod cannot be screwed out from the inside of equipment, so that the fixing efficiency of the sealing screw with the anti-reversal component can be greatly ensured, and the probability of accidents is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a sealing screw with an anti-reversal component. Background Art

[0002] Screws are tools that use the physics and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually tighten objects and parts, including a sealing screw;

[0003] Screws, also known as "screws" (screws) and "screw rods" (screw rods), are actually a general term, while screws and screw rods are different from each other. Screws are generally called wood screws, which have a pointed head at the front end and a larger pitch. They are generally used to fasten wooden and plastic parts. Screw rods are machine screws (mechanical screws), which have a flat head at the front end and a smaller and more uniform pitch. They are generally used to fasten metal and machine parts.

[0004] When the current sealing screws are in use, when the screws are installed inside the equipment, due to other factors such as friction of materials inside the equipment or material entanglement on the outer wall of the nut, the nut is easily subjected to force and then the screw is twisted out of the equipment and loosened. On the one hand, it will affect the sealing efficiency of the sealing screws. On the other hand, it will also cause the equipment to loosen and be damaged due to loose fixation, thus bringing inconvenience to people's use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sealing screw with an anti-reversal component, which solves the problem that when the current sealing screw is in use, due to friction of materials inside the equipment or other factors such as materials being entangled around the outer wall of the nut, the nut is easily subjected to force and thus causes the screw to twist out of the equipment and become loose, which on the one hand affects the sealing efficiency of the sealing screw and on the other hand causes the equipment to become loose and damaged due to loose fixation, thus causing inconvenience to people's use.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a sealing screw with an anti-reversal component, including a screw rod, a nut is arranged on the top of the screw rod, and the sealing screw with the anti-reversal component also includes: a limiting device, which is arranged on the top of the screw rod; a sealing device, which is arranged on the top of the screw rod; the limiting device includes: a spring, which is installed inside the screw rod; a plug rod, which is arranged inside the screw rod and is tightly pressed against the top of the spring; a connecting block, which is installed on the top of the screw rod and is movably connected to the top of the plug rod; a sleeve, which is sleeved on the outer wall of the connecting block, and The limiting device can prevent the screw from reversing, and the sealing device can improve the sealing performance of the sealing screw with an anti-reversal component. When the plug leaves the inside of the screw, the rotation of the nut will not affect the screw, and the third rubber pad can seal the gap between the screw and the external device.

[0007] Preferably, a spare groove is processed on the top of the nut.

[0008] Preferably, a first rubber pad is installed on the inner wall of the sleeve, the outer wall of the first rubber pad is in contact with the outer wall of the connecting block, and a second rubber pad in contact with the inner wall of the sleeve is installed above the connecting block.

[0009] Beneficial Effects

[0010] The utility model provides a sealing screw with an anti-reversal component. It has the following beneficial effects: the sealing screw with the anti-reversal component can be installed by the cooperation of the screw rod, the nut and the limiting device, and the staff can separate the nut from the screw rod, thereby preventing the nut from twisting the screw rod out of the device when subjected to external force, thereby greatly ensuring the fixing efficiency of the sealing screw with the anti-reversal component and reducing the probability of accidents;

[0011] By cooperating with the sealing device, the connection position between the screw and the equipment can be sealed, which can effectively prevent the gas or liquid inside the equipment from leaking through the connection gap, and can also prevent corrosion to the screw, thereby extending the service life of the sealing screw with an anti-reversal component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the appearance;

[0014] Figure 3 for Figure 1 A schematic diagram of the structure of the first rubber pad, the second rubber pad and the connecting block;

[0015] Figure 4 for Figure 1 Schematic diagram of the structure of the connecting block, spring and plug rod.

[0016] In the figure: 1, screw rod, 2, limiting device, 201, spring, 202, plug rod, 203, connecting block, 204, sleeve, 205, limit rod, 3, sealing device, 301, protrusion, 302, third rubber pad, 4, first rubber pad, 5, second rubber pad, 6, nut, 7, spare groove. DETAILED DESCRIPTION

[0017] 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.

[0018] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0019] When the current sealing screws are used, when the screws are installed inside the equipment, due to friction of the materials inside the equipment or other factors such as the materials being entangled on the outer wall of the nut, the nut is easily subjected to force, which causes the screw to be twisted out of the equipment and loosen. On the one hand, this affects the sealing efficiency of the sealing screws, and on the other hand, it also causes the equipment to become loose and damaged due to loose fixation, thus bringing inconvenience to people's use.

[0020] In view of this, the utility model provides a sealing screw with an anti-reversal component. Through the cooperation of the screw, the nut and the limiting device, after the sealing screw with the anti-reversal component is installed, the staff can separate the nut from the screw, thereby preventing the nut from twisting the screw out of the interior of the equipment when subjected to external force, thereby greatly ensuring the fixing efficiency of the sealing screw with the anti-reversal component and reducing the probability of accidents.

[0021] Embodiment 1: By Figure 1 , 2, 3 and 4 show that a sealing screw with an anti-reversal component comprises a screw rod 1, a nut 6 is arranged above the screw rod 1, and the sealing screw with an anti-reversal component further comprises: a limiting device 2, arranged above the screw rod 1; a sealing device 3, arranged above the screw rod 1; the limiting device 2 comprises: a spring 201, installed inside the screw rod 1; a plug rod 202, arranged inside the screw rod 1, and tightly abutting against the top of the spring 201; a connecting block 203, installed at the top of the screw rod 1, and movably connected to the top of the plug rod 202; a sleeve 204, sleeved on the outer wall of the connecting block 203, and fixedly connected to the top of the plug rod 202; The limiting rod 205 is installed on the inner wall of the sleeve 204 and plugged into the groove of the connecting block 203; the sealing device 3 includes: a protrusion 301 installed on the bottom of the connecting block 203; a third rubber pad 302 is arranged at the bottom of the connecting block 203 and has an interference fit with the outer wall of the protrusion 301; wherein, the limiting device 2 can prevent the screw 1 from reversing, and the sealing device 3 can improve the sealing performance of the sealing screw with an anti-reversal component. When the inserting rod 202 leaves the inside of the screw 1, the rotation of the nut 6 will not affect the screw 1, and the third rubber pad 302 can seal the gap between the screw 1 and the external device;

[0022] In the specific implementation process, it is worth pointing out that the limiting device 2 can separate the nut 6 and the screw 1, thereby preventing the screw 1 from being reversed and loosened, the sealing device 3 can seal the connection between the screw 1 and the device, and ensure that the screw 1 will not be corroded and the gas or liquid inside the device will not leak, the insertion rod 202 can connect the screw 1 and the nut 6 into a whole, and then drive the screw 1 to move when the nut 6 is twisted, the limiting rod 205 can improve the connection between the nut 6 and the screw 1 and other components, and avoid the single force of the insertion rod 202 when the nut 6 is twisted, and the protrusion 301 can limit the third rubber pad 302 to prevent the third rubber pad 302 from falling off;

[0023] Furthermore, a spare groove 7 is processed on the upper side of the nut 6;

[0024] In the specific implementation process, it is worth pointing out that when the spare groove 7 is disengaged from the outer wall of the nut 6, the staff can more conveniently remove the sealing screw with the anti-reversal component;

[0025] Furthermore, a first rubber pad 4 is installed on the inner wall of the sleeve 204, and the outer wall of the first rubber pad 4 is in contact with the outer wall of the connecting block 203. A second rubber pad 5 in contact with the inner wall of the sleeve 204 is installed above the connecting block 203.

[0026] In the specific implementation process, it is worth pointing out that the first rubber pad 4 and the second rubber pad 5 can seal between the connecting block 203 and the sleeve 204;

[0027] Specifically, when using the sealing screw with an anti-reversal component, the staff first aligns the screw 1 with the connection of the device, and then uses the nut 6 to twist the screw 1 into the interior of the device. When the sealing screw with an anti-reversal component reaches a suitable position, the sealing device 3 can seal the connection between the screw 1 and the device. Then the staff uses the limiting device 2 to separate the nut 6 and the screw 1. At this time, the rotation of the nut 6 does not interfere with the screw 1. When the sealing screw with an anti-reversal component is installed, the staff pulls the nut 6, and the nut 6 can drive The sleeve 204 moves along the outer wall of the connecting block 203, and at the same time, the sleeve 204 drives the insertion rod 202 to move. When the insertion rod 202 leaves the inside of the screw 1, when the nut 6 is twisted, it will not interfere with the screw 1, thereby preventing the screw 1 from reversing and loosening. When twisting the sealing screw with an anti-reversal component, when the screw 1 moves to a certain position, the third rubber pad 302 can fit with the surface of the equipment, and then the nut 6 is continuously twisted to squeeze the third rubber pad 302. When the third rubber pad 302 is squeezed to a certain extent, the sealing installation can be completed.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing screw with an anti-reversal component, comprising a screw rod (1), characterized in that: A nut (6) is arranged above the screw rod (1), and the sealing screw with an anti-reversal component further comprises: A limiting device (2) is arranged above the screw (1); A sealing device (3) is arranged above the screw (1); The limiting device (2) comprises: A spring (201) is installed inside the screw rod (1); An insert rod (202) is disposed inside the screw rod (1) and is tightly pressed against the top of the spring (201); A connecting block (203) is installed on the top of the screw rod (1) and is movably connected to the top of the insertion rod (202); A sleeve (204) is sleeved on the outer wall of the connecting block (203) and fixedly connected to the top of the insertion rod (202); A limiting rod (205) is installed on the inner wall of the sleeve (204) and plugged into the groove of the connecting block (203); The sealing device (3) comprises: A convex block (301) is mounted on the bottom of the connecting block (203); A third rubber pad (302) is disposed at the bottom of the connecting block (203) and is interference-fitted with the outer wall of the protrusion (301); The limiting device (2) can prevent the screw (1) from reversing, the sealing device (3) can improve the sealing performance of the sealing screw with an anti-reversal component, when the insertion rod (202) leaves the inside of the screw (1), the rotation of the nut (6) will not affect the screw (1), and the third rubber pad (302) can seal the gap between the screw (1) and the external device.

2. A sealing screw with an anti-reversal component according to claim 1, characterized in that: A spare groove (7) is processed on the upper side of the nut (6).

3. The sealing screw with an anti-reversal component according to claim 1, characterized in that: A first rubber pad (4) is installed on the inner wall of the sleeve (204), and the outer wall of the first rubber pad (4) is in contact with the outer wall of the connecting block (203). A second rubber pad (5) in contact with the inner wall of the sleeve (204) is installed above the connecting block (203).

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