Anti-falling sealing locking screw

Abstract

The utility model relates to the technical field of screws, and discloses an anti-falling sealing locking screw which comprises a bolt rod, a nut is fixedly connected to the top of the bolt rod, and a metal washer is arranged at the bottom of the nut in a matched mode. When a cross screwdriver abuts against the deformation petal piece and extends into the hard supporting body to be matched with the nut to screw a bolt, the deformation petal piece can deform downwards, and the cross screwdriver cannot be affected. Therefore, when the screw is installed and used, the problem that when the screw is installed and used, external water makes contact with the cross-shaped groove, the cross-shaped groove is seriously rusted, and the bolt cannot be screwed and disassembled is solved, meanwhile, when the bolt is screwed down, the metal gasket is matched to press the sealing gasket, and external water entering a gap between the bolt rod and a used object is reduced; and the sealing performance of the joint of the screw and an object is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw technical field, concretely is the sealed locking screw of preventing falling off. BACKGROUND

[0002] Screw refers to a kind of mechanical fastener, usually made of metal material, with threaded portion, for connecting or fixing two or more objects. The type of screw is very much, can be classified according to shape, purpose, material quality etc., commonly known as self-tapping screw, machine screw, wood screw etc. When installing screw, usually need to use nut or directly spin into corresponding hole, utilize the mutual embedding of thread to firmly connect object. Screw is widely used in building, machinery manufacturing, electronic product and many other fields. And locking cross screw is a kind of common screw.

[0003] The existing screw is partially exposed outside the use object when using, it is easy to contact rainwater and other external moisture, and long-term rainwater exists in cross groove inside cross screw, easy to appear the rust of cross groove, further make cross groove unable to cooperate with cross screw driver to be twisted, make screw appear the problem of disassembly, affect the use of screw, for this purpose, we propose the sealed locking screw of preventing falling off. UTILITY MODEL CONTENT

[0004] The utility model aims at providing the sealed locking screw of preventing falling off to solve the rust problem of cross groove long-term contact with moisture in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: the sealed locking screw of preventing falling off, including bolt rod, the top of bolt rod is fixedly connected with nut, the bottom of nut is matched with metal washer, the bottom of metal washer is provided with sealing washer, the outside of sealing washer is fixedly connected with support ring, the top of support ring is provided with hard support, the top of hard support is provided with a plurality of deformation petals, the top of nut is processed with cross groove.

[0006] Preferably, the outside of bolt rod is provided with extension cylinder, the top of extension cylinder is fixedly connected with external body.

[0007] Preferably, the inside of external body is provided with nut, the top of external body is fixedly connected with welding ring.

[0008] Preferably, the top of welding ring is provided with embedded ring, and the embedded ring is sleeved on the outside of bolt rod.

[0009] Preferably, a plurality of sharp blocks are arranged on the surface of embedded ring in a ring shape and at equal intervals, and the sharp blocks have a triangular structure.

[0010] Preferably, threads are formed on the circumferential inner wall of extension cylinder, and the extension cylinder is matched with the bottom of nut.

[0011] Preferably, the supporting ring is matched with the outside of the metal washer, and the hard supporting body is matched with the top of the metal washer.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、the utility model discloses a supporting ring, a sealing washer and a hard supporting body are arranged on the outside of the metal washer and the nut, the hard supporting body can realize the closure of the outside of the nut by the deformation of the deformation petal, and when the cross screwdriver is inserted into the hard supporting body and cooperates with the nut to rotate the bolt, the deformation petal deforms downward and does not affect the cross screwdriver, and when the bolt is not rotated, the multiple deformation petals restore to realize the closure of the top of the hard supporting body, the nut is wrapped to reduce the entry of external water, thereby the problem that the bolt cannot be rotated and disassembled due to the serious rust of the cross groove caused by the contact of external water with the cross groove during the installation and use of the screw can be solved, and when the bolt is tightened, the metal washer is compressed to tightly press the sealing washer, the entry of external water into the gap between the bolt rod and the used object is reduced, and the sealing performance of the connection between the screw and the object is improved.

[0014] 2、when the external body is rotated, the nut in the inside cooperates with the bolt rod to rotate synchronously, when the nut is tightened on the bolt rod, the extension cylinder is also tightened on the bolt rod by the thread and is resisted upward by the nut, and the sharp block of the embedded ring is embedded into the surface of the object, so that the external body can be stably matched with the outside of the bolt rod and attached to the object, the position of the nut is positioned, the risk that the nut is fallen off due to the vibration of the object connected by the screw during use is reduced, the stable use of the screw is facilitated, and during transportation, the positioning frame does not need to be installed, so that the multiple water purifiers can be transported or stacked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0016] Fig. 2 It is the inside structure schematic diagram of the hard supporting body of the utility model;

[0017] Fig. 3 It is the inside structure schematic diagram of the welding ring of the utility model.

[0018] In the drawing: 100, bolt rod;110, nut;111, cross groove;112, metal washer;120, sealing washer;121, supporting ring;122, hard supporting body;123, deformation petal;130, extension cylinder;131, thread;140, external body;141, nut;150, welding ring;151, embedded ring;152, sharp block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] EMBODIMENT

[0021] Please refer to Figs. 1-3 , the anti-separation sealing locking screw in the drawing includes a bolt rod 100, the top of the bolt rod 100 is tightly welded with a nut 110, the bottom of the nut 110 is matched with a metal washer 112 sleeved on the bolt rod 100, the metal washer 112 is a common stainless steel washer on the market, the bottom of the metal washer 112 is provided with a sealing washer 120 sleeved on the bolt rod 100, the sealing washer 120 uses a common rubber washer on the market, the outside of the sealing washer 120 is bonded with a supporting ring 121 using common glue, the supporting ring 121 is made of hard plastic, the top of the supporting ring 121 is provided with a hard support body 122, the hard support body 122 is made of common transparent hard plastic, the top of the hard support body 122 is provided with a plurality of deformation petals 123, the deformation petals 123 are made of common transparent plastic sheets with elasticity, and the top of the nut 110 is processed with a cross groove 111.

[0022] Specifically, the outside of the bolt rod 100 is sleeved with an extension cylinder 130, and the top of the extension cylinder 130 is tightly welded with an external body 140.

[0023] Further, the inside of the external body 140 is provided with a nut 141 matched with the bolt rod 100, and the top of the external body 140 is tightly welded with a welding ring 150.

[0024] Still further, the top of the welding ring 150 is tightly welded with an embedded ring 151, and the embedded ring 151 is made of a stainless steel washer, and the embedded ring 151 is sleeved on the outside of the bolt rod 100.

[0025] It is worth noting that the surface of the embedded ring 151 is annularly and equidistantly tightly welded with a plurality of sharp blocks 152, and the sharp blocks 152 are in triangular structure.

[0026] It is worth noting that the circumferential inner wall of the extension cylinder 130 is provided with a thread 131 matched with the bolt rod 100, and the bottom of the extension cylinder 130 is matched with the nut 141.

[0027] In addition, the supporting ring 121 is matched with the outside of the metal washer 112, and the hard support body 122 is matched with the top of the metal washer 112.

[0028] Working principle: by setting support ring 121, sealing washer 120 and hard support 122 on the outside of metal washer 112 and nut 110, the hard support 122 can be used to realize the closure of the outside of nut 110, and when the cross screwdriver is inserted into the hard support 122 and cooperates with nut 110 to rotate the bolt, the deformed petals 123 of the hard support 122 will deform downward and will not affect the cross screwdriver, and when the screw is not rotated, the multiple deformed petals 123 restore to realize the closure of the top of the hard support 122, and the nut 110 is wrapped to reduce the entry of external water, so that the problem of the bolt being unable to be rotated and disassembled due to the serious rust of the cross groove 111 caused by the contact of external water with the cross groove 111 during the installation and use of the screw can be solved, and when the bolt is tightened, the metal washer 112 will press the sealing washer 120 tightly, reducing the entry of external water into the gap between the bolt rod 100 and the object, and improving the sealing performance of the screw and the object connection; when the outer body 140 is rotated, the nut 141 inside the outer body 140 cooperates with the bolt rod 100 to rotate synchronously, and when the nut 141 is tightened on the bolt rod 100, the extension cylinder 130 is also tightened on the bolt rod 100 by the thread 131 and abuts against the nut 141 upward, and the sharp blocks 152 of the embedded ring 151 are embedded into the surface of the object, so that the outer body 140 can be stably cooperated with the outside of the bolt rod 100 and attached to the object, and the position of the nut 141 is positioned, reducing the risk of the nut 141 falling off due to the vibration of the object connected by the screw during use, and being beneficial to the stable use of the screw.

[0029] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening sealing locking screw, including a bolt shank (100), characterized in that: The top of the bolt rod (100) is fixed with a nut (110), the bottom of the nut (110) is fitted with a metal washer (112), the bottom of the metal washer (112) is provided with a sealing washer (120), the outside of the sealing washer (120) is fixed with a support ring (121), the top of the support ring (121) is provided with a rigid support body (122), the top of the rigid support body (122) is provided with multiple deformation petals (123), and the top of the nut (110) is machined with a cross groove (111).

2. The anti-loosening sealing locking screw according to claim 1, characterized in that: An extension tube (130) is sleeved on the outside of the bolt rod (100), and an outer body (140) is fixed to the top of the extension tube (130).

3. The anti-loosening sealing locking screw according to claim 2, characterized in that: The outer body (140) is provided with a nut (141) inside, and a welding ring (150) is fixed to the top of the outer body (140).

4. The anti-loosening sealing locking screw according to claim 3, characterized in that: An inner ring (151) is provided on the top of the welding ring (150), and the inner ring (151) is sleeved on the outside of the bolt rod (100).

5. The anti-loosening sealing locking screw according to claim 4, characterized in that: The surface of the inner ring (151) is provided with a plurality of pointed blocks (152) at equal intervals in a ring shape, and the pointed blocks (152) have a triangular structure.

6. The anti-loosening sealing locking screw according to claim 2, characterized in that: The extension tube (130) has a thread (131) on its inner circumference and is fitted to the bottom of the nut (141).

7. The anti-loosening sealing locking screw according to claim 1, characterized in that: The support ring (121) fits on the outside of the metal washer (112), and the rigid support (122) fits on the top of the metal washer (112).

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