Sealing spring nut assembly

Abstract

The utility model discloses a sealing spring nut assembly, and belongs to the technical field of spring nuts. The sealing spring nut assembly comprises an internal thread nut, two clamping frames are fixedly connected to the outer surface of one side of the internal thread nut, and a thread displacement shaft tube is fixedly connected to the outer surface of one side of the internal thread nut; and the clamping gaskets are embedded in the two clamping frames in a sliding mode, and the outer surfaces of one sides of the clamping gaskets are fixedly connected with anti-loosening springs. According to the sealing spring nut assembly, when the anti-loosening spring is fatigued or damaged due to long-term use, the spring can be independently replaced without replacing the whole nut, the cost is saved, the concentricity between the bolt and the internal thread nut is greatly improved through the thread displacement shaft pipe and the guide ring, and sealing performance reduction caused by unbalance loading is avoided; the combination of dynamic sealing and static sealing is achieved through the anti-loosening spring and the sealing rubber ring, and therefore the sealing device adapts to long-term stable sealing in the vibration environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring nut technical field, more specifically, relate to sealed spring nut assembly. BACKGROUND

[0002] Spring nut is a kind of fastener with built-in spring or elastic structure, usually made of metal, its characteristics are the spring force is used to generate sustained pressure when installing, make nut still can keep locking under vibration or dynamic load, prevent loosening.

[0003] Traditional spring nut usually adopts integral structure, when lock spring is damaged due to long-term vibration or fatigue, the whole nut needs to be replaced, maintenance cost is increased, in addition, ordinary nut is prone to misalignment of thread in the process of bolt tightening due to eccentric load, influence sealing performance, especially in vibration environment, thread connection is easy to loosen, cause sealing failure. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide sealed spring nut assembly, it can replace spring alone without replacing the whole nut, save cost, realize the combination of dynamic sealing and static sealing, to adapt to long-term stable sealing in vibration environment.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] Sealed spring nut assembly, comprising:

[0007] Internal thread nut, one side outer surface of the internal thread nut is fixedly connected with two clamping frames, one side outer surface of the internal thread nut is fixedly connected with threaded displacement shaft pipe, and

[0008] Clamping gasket, the clamping gasket is slidably embedded in the interior of two clamping frames, and one side outer surface of the clamping gasket is fixedly connected with lock spring.

[0009] As a preferred scheme of the utility model, the threaded displacement shaft pipe is slidably sleeved with sealing rubber ring.

[0010] As a preferred scheme of the utility model, the sealing rubber ring is located between lock spring and threaded displacement shaft pipe.

[0011] As a preferred scheme of the utility model, one end of the threaded displacement shaft pipe is fixedly embedded with guide ring.

[0012] As a preferred scheme of the utility model, two clamping frames are made of stainless steel material.

[0013] As a preferred scheme of the utility model, the clamping gasket is made of stainless steel material.

[0014] Compared with the prior art, the sealing spring nut assembly has the following beneficial effects:

[0015] The sealing spring nut assembly only needs to rotate the clamping gasket to install or take out the clamping gasket from the inside of the two clamping frames, the spring can be replaced alone without replacing the entire nut when the lock spring is fatigued or damaged due to long-term use, cost is saved, the bolt is screwed into the inside of the threaded displacement shaft tube first, and then threaded connection is made with the internal thread nut after passing through the threaded displacement shaft tube, the threaded displacement shaft tube and the guide ring greatly improve the concentricity between the bolt and the internal thread nut, and the sealing performance is reduced due to eccentric load is avoided, the lock spring is in a compressed state after the bolt is screwed into the internal thread nut, the restoring force of the lock spring acts on the bolt, so that the bolt always maintains a moving trend in the direction of separating from the internal thread nut, thereby the threaded connection between the bolt and the internal thread nut is more compact, the lock spring and the sealing rubber ring are combined to realize dynamic sealing and static sealing, thereby long-term stable sealing in a vibrating environment is adapted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a perspective view of the utility model;

[0017] Fig. 2 It is an overall structure explosion view of the utility model;

[0018] Fig. 3 It is a partial structure explosion view of the utility model.

[0019] Explanation of reference numerals in the drawing:

[0020] 1, internal thread nut; 2, clamping frame; 3, clamping gasket; 4, lock spring; 5, threaded displacement shaft tube; 6, sealing rubber ring; 7, guide ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1-3 , the sealing spring nut assembly comprises:

[0023] The internal thread nut 1 is fixedly connected with two clamping frames 2 on one side of the outer surface, and the threaded displacement shaft tube 5 is fixedly connected with the internal thread nut 1 on one side of the outer surface.

[0024] The clamping pad 3 is slidably arranged in the interior of the two clamping frames 2, and one side of the clamping pad 3 is fixedly connected with the anti-loosening spring 4.

[0025] In the embodiment of the utility model, only need to rotate clamping pad 3 can be installed in the interior of two clamping frames 2 or be taken out from the interior of two clamping frames 2, when anti-loosening spring 4 is tired or damaged due to long-term use, can be individually replaced spring and need not to replace whole nut, save the cost, bolt is screwed into the interior of threaded displacement shaft pipe 5 first, is screwed after passing threaded displacement shaft pipe 5 again with internal thread nut 1 thread connection, threaded displacement shaft pipe 5 greatly promotes the concentricity between bolt and internal thread nut 1, avoid the sealing property reduction caused by eccentric load, when bolt is screwed into internal thread nut 1, anti-loosening spring 4 will be in compression state, the restoring force of anti-loosening spring 4 acts on bolt, make bolt keep the moving trend to the direction of separating from internal thread nut 1, thereby make the thread connection between bolt and internal thread nut 1 more closely, anti-loosening spring 4 realizes dynamic sealing, thereby adapt to long-term stable sealing under the vibration environment.

[0026] Specifically, the sealing rubber ring 6 is slidably sleeved on the threaded displacement shaft pipe 5.

[0027] In this embodiment, the sealing rubber ring 6 mainly realizes the static sealing between the bolt and the internal thread nut 1, and further improves the sealing property.

[0028] Specifically, the sealing rubber ring 6 is located between the anti-loosening spring 4 and the threaded displacement shaft pipe 5.

[0029] In this embodiment, the sealing rubber ring 6 is located between the anti-loosening spring 4 and the threaded displacement shaft pipe 5, and the installation space is reasonably utilized.

[0030] Specifically, the threaded displacement shaft pipe 5 is fixedly embedded with a guide ring 7 at one end.

[0031] In this embodiment, the guide ring 7 is used to further improve the concentricity between the bolt and the internal thread nut 1 when the bolt and the internal thread nut 1 are connected, and thus the sealing property is improved.

[0032] Specifically, the two clamping frames 2 are made of stainless steel.

[0033] In this embodiment, the two clamping frames 2 are not prone to rust, and can maintain stable connection and disconnection with the two clamping pads 3.

[0034] Specifically, the clamping pad 3 is made of stainless steel.

[0035] In this embodiment, the clamping pad 3 is not prone to rust, and will not be unstable in connection with the clamping frame 2 due to surface wear after long-term use.

[0036] Working principle: only need to rotate the clamping gasket 3 can be installed in the two clamping frame 2 inside or from the two clamping frame 2 inside take out, when the lock spring 4 fatigue or damage due to long-term use, can be individually replaced spring without replacing the entire nut, save cost, bolt first to the inside of the threaded displacement shaft tube 5, after passing through the threaded displacement shaft tube 5 and internal thread nut 1 threaded connection, threaded displacement shaft tube 5 and guide ring 7 greatly improve the concentricity between the bolt and the internal thread nut 1, avoid the sealability of the partial load caused by the decrease, when the bolt is screwed into the internal thread nut 1, the lock spring 4 will be in compression state, the restoring force of the lock spring 4 acts on the bolt, so that the bolt always keep moving trend in the direction of separation from the internal thread nut 1, so that the bolt and the internal thread nut 1 between the threaded connection is more closely, lock spring 4 and sealing rubber ring 6, realize the combination of dynamic sealing and static sealing, so as to adapt to the long-term stable sealing in the vibration environment.

[0037] The above, only for the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range disclosed by the present application, according to the technical scheme of the present application and its improvement concept to replace or change, should be covered in the protection scope of the present application.

Claims

1. A sealed spring nut assembly characterized by, Include: The inner thread nut (1), one side of the outer surface of the inner thread nut (1) is fixedly connected with two clamping frames (2), and the outer surface of one side of the inner thread nut (1) is fixedly connected with a threaded displacement shaft tube (5); and The clamping gasket (3) is slidably embedded in the inner part of the two clamping frames (2), and the outer surface of one side of the clamping gasket (3) is fixedly connected with the anti-loose spring (4).

2. The seal spring nut assembly of claim 1, wherein: The threaded displacement shaft tube (5) is slidably sleeved with a sealing rubber ring (6).

3. The seal spring nut assembly of claim 2, wherein: The sealing rubber ring (6) is located between the anti-loose spring (4) and the threaded displacement shaft tube (5).

4. The seal spring nut assembly of claim 1, wherein: One end of the threaded displacement shaft tube (5) is fixedly embedded with a guide ring (7).

5. The seal spring nut assembly of claim 1, wherein: Both of the two clamping frames (2) are made of stainless steel material.

6. The seal spring nut assembly of claim 1, wherein: The clamping gasket (3) is made of stainless steel material.

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