CN201954156U

CN201954156U - Locking device

Info

Publication number: CN201954156U
Application number: CN2011200337905U
Authority: CN
Inventors: 郭春伟
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2011-01-30
Filing date: 2011-01-30
Publication date: 2011-08-31
Anticipated expiration: 2021-01-30

Abstract

The utility model provides a locking device comprising a joint body, a conical locking ring and a locking nut, wherein the conical locking ring is sheathed on the outer surface of the joint body, an accommodation interval for accommodating a to-be-connected pipe is formed between the inner surface of the conical locking ring and the outer surface of the joint body, the outer surface of the conical locking ring comprises a first conical face part, and the conical locking ring is provided with a first vertical notch cut from the small diameter end of the conical surface of the conical locking ring; and the locking nut comprises a first end and a second end, the inner surface of the first end is provided with a second screw thread matched with the first screw thread on a connecting base of the joint body, and a second conical surface matched with the first conical face part is formed on the inner surface of the second end. The locking device provided by the utility model is suitable for carrying out a plurality of times of repeated clamping actions, and has an effect of preventing the clamped pipe-shaped products from being damaged; and by using the locking device provided by the utility model, favorable security seal effect of entire clamping structure can be achieved.

Description

Locking device

Technical field

The utility model relates to a kind of locking device.

Background technique

At present soft air pipe is with being connected of joint generally to adopt the larynx hoop to carry out fastening, and this mode is applicable to situation about need not dismantle for a long time, if often dismantle the breakage that is easy to cause soft air pipe, finally causes gas leakage.

Based on above problem, need develop a kind of frequent dismounting that is applicable to, and be difficult for causing the locking device of pipe breakage such as soft air pipe, to reach purpose convenient, that prolong the working life of pipes such as soft air pipe is installed, and then reaches and increase work efficiency and the purpose of safety reliability.

The model utility content

The purpose of this utility model is to provide a kind of locking device, to solve locking device of the prior art dismounting inconvenience, easily to cause technical problems such as pipe breakage such as soft air pipe.

For solving the problems of the technologies described above, the utility model provides a kind of locking device, this device comprises: joint body, the connecting head that has connecting base and stretch from connecting base one epitaxial lateral overgrowth, on the outer periphery of the connecting base of this joint body, be formed with first screw thread, have the through hole that connects above-mentioned connecting base and connecting head in this joint body; The taper lock ring, be set in the outer surface of above-mentioned connecting head, have between the outer surface of its internal surface and above-mentioned connecting head and hold the gap that holds that is connected body, outer surface comprises first conical surface portion, and has vertical first otch of going into from conical surface path one end-grain cutting of above-mentioned taper lock ring on the above-mentioned taper lock ring; And locking nut, comprising first end and second end, the internal surface of this first end has second screw thread of first threads engaged on the connecting base with described joint body, and the internal surface of second end forms second conical surface portion that matches with above-mentioned first conical surface portion.

Further, the axial direction along connecting head is provided with a plurality of annular grooves on the internal surface of taper lock ring.

Further, has vertical second otch of going on the taper lock ring from the conical surface big footpath one end-grain cutting of taper lock ring.

Further, the outer circumferential face of connecting head is a tapered slope.

Further, the outer circumferential face of the internal surface of taper lock ring and connecting head is suitable.

Further, the periphery of above-mentioned second end is provided with the handle hole that is used to insert application of force handle.

Further, the periphery of above-mentioned first end has concaveconvex shape.

Further, the periphery of above-mentioned first end has polygonal shape.

The utlity model has following beneficial effect:

By adopting the taper lock ring to clamp, to clamping the stress of surface of contact, prevent that flexible pipe is subjected to excessive stress and damaged situation takes place in the time that grip both hose can being reduced thereby reached as bodys such as flexible pipes; And, because above-mentioned taper lock ring has been realized its structural elasticity by otch is set at periphery, thereby when grip both hose, has stress and slow down effect when the suffered stress of flexible pipe is excessive, thereby avoided flexible pipe to be subjected to excessive stress and impaired, effectively guaranteed the working life of flexible pipe; Also have, the internal surface of above-mentioned taper lock ring has a plurality of annular grooves, prevents clamped object slippage, plays the effect of anticreep groove, thereby has the effect of the sealing of clamping.In addition, the connecting head that is used for the joint body that is connected with body such as flexible pipe partly is conical surface, thereby when the internal diameter size of the body of institute's socket has deviation slightly, also can reach good sealing effect by the socket position of regulating body.And then, owing to adopt the spiral locking member that above-mentioned gripping members is locked, guaranteed the integrally-built security seal effect of above-mentioned locking device.

Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:

Fig. 1 is the generalized section according to locking device of the present utility model;

Fig. 2 a is that the master according to locking device middle joint body of the present utility model looks schematic representation;

Fig. 2 b is that the master according to locking device middle joint body of the present utility model looks generalized section;

Fig. 3 a is the plan view according to taper lock ring in the locking device of the present utility model;

Fig. 3 b is the left view according to taper lock ring in the locking device of the present utility model;

Fig. 3 c is that the master according to taper lock ring in the locking device of the present utility model looks generalized section;

Fig. 4 a is the plan view according to locking nut in the locking device of the present utility model; And

Fig. 4 b is that the master according to locking nut in the locking device of the present utility model looks generalized section.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in Figure 1, comprise according to locking device of the present utility model: joint body 1, the connecting head 14 that has connecting base 12 and stretch from connecting base 12 1 epitaxial lateral overgrowths, on the outer periphery of the connecting base 12 of this joint body 1, be formed with first screw thread, have the through hole 16 that connects above-mentioned connecting base 12 and connecting head 14 in this joint body 1; Taper lock ring 2, be set in the outer surface of connecting head 14, have between the outer surface of its internal surface and connecting head 14 and hold the gap that holds that is connected body 4, outer surface comprises first conical surface portion 22, and has vertical first otch 24 of going into from conical surface path one end-grain cutting of taper lock ring 2 on the taper lock ring 2; And locking nut 3, comprise first end 32 and second end 34, the internal surface of first end 32 has second screw thread of first threads engaged on the connecting base 12 with joint body 1, and the internal surface of second end 34 forms second conical surface portion 36 that matches with first conical surface portion 22.

By the longitudinal cut of going into from conical surface path one end-grain cutting of taper lock ring is set on the taper lock ring, realized the structural elasticity of this taper lock ring, thereby adopt this to have the taper lock ring pinch tube body of structural elasticity, to clamping the stress of surface of contact, prevent that body is subjected to excessive stress and breakage in the time of can reducing to clamp body thereby reached.And, clamp the taper lock ring by locking nut, make clamped body closely be socketed on the connecting head of joint body, guaranteed effective clamping sealing effect.

Shown in Fig. 3 a and 3c, preferably, the axial direction along connecting head 14 on the internal surface of taper lock ring 2 is provided with a plurality of annular grooves 26.By a plurality of annular grooves are set, can effectively prevent the pipe slippage, played the effect of anticreep groove.

Shown in Fig. 3 a, Fig. 3 b and 3c, preferably, has vertical second otch 28 of going on the taper lock ring 2 from the conical surface big footpath one end-grain cutting of this taper lock ring 2.Can improve the elasticity of taper lock ring integral body by said structure, thereby enlarge its deformable scope, it is more remarkable to make that the stress of gripping members slows down effect, thereby has improved its effective rate of utilization.

Shown in Fig. 1 and Fig. 2 b, preferably, the outer circumferential face of connecting head 14 is a tapered slope.Shown in Fig. 1, Fig. 3 b and 3c, more preferably, the outer circumferential face of the internal surface of taper lock ring 2 and connecting head 14 is suitable.Be used for tapered of the connecting head part of the joint body that is connected with body, thereby solved because the poor sealing problem that the internal diameter size of clamped body exists error to cause.And, because the tapered inclined-plane of taper lock ring and connecting head are suitable, thereby can improve applying degree between taper lock ring and the clamped body, and then can reach good clamping effect and sealing effect.

Shown in Fig. 4 a, preferably, the periphery of second end 34 of locking nut 3 is provided with the handle hole 38 that is used to insert application of force handle.More preferably, the periphery of second end 34 of locking nut 3 is provided with four handle holes 38.Like this, when carrying out spiral locking, can handle hole be Point of Strength, be convenient to apply external force, can reach the purpose of increasing work efficiency.

Shown in Fig. 4 b, preferably, the periphery perpendicular to the section of connecting base 12 axial directions of first end 32 of locking nut 3 has concaveconvex shape.Like this, when carrying out spiral locking, put forth effort the frictional force of part,, also can increase work efficiency thereupon to reach easy to operate purpose by increasing above-mentioned first end.

Preferably, in a unshowned embodiment, the section perpendicular to connecting base 12 axial directions of first end 32 of locking nut 3 can have polygonal shape.Like this, when carrying out spiral locking, put forth effort the frictional force of part,, also can increase work efficiency thereupon to reach easy to operate purpose by increasing above-mentioned front end.

The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a locking device is characterized in that, comprising:

Joint body (1), the connecting head (14) that has connecting base (12) and stretch from described connecting base (12) one epitaxial lateral overgrowths, on the outer periphery of the connecting base (12) of described joint body (1), be formed with first screw thread, have the through hole (16) that connects described connecting base (12) and connecting head (14) in the described joint body (1);

Taper lock ring (2), be set in the outer surface of described connecting head (14), have between the outer surface of its internal surface and described connecting head (14) and hold the gap that holds that is connected body (4), outer surface comprises first conical surface portion (22), and has vertical first otch (24) of going into from conical surface path one end-grain cutting of described taper lock ring (2) on the described taper lock ring (2); And

Locking nut (3), comprise first end (32) and second end (34), the internal surface of described first end (32) has second screw thread of first threads engaged on the connecting base (12) with described joint body (1), and the internal surface of described second end (34) forms second conical surface portion (36) that matches with described first conical surface portion (22).

2. locking device according to claim 1 is characterized in that, the axial direction along described connecting head (14) on the internal surface of described taper lock ring (2) is provided with a plurality of annular grooves (26).

3. locking device according to claim 2 is characterized in that, has vertical second otch (28) of going into from the conical surface big footpath one end-grain cutting of described taper lock ring (2) on the described taper lock ring (2).

4. locking device according to claim 1 is characterized in that, the outer circumferential face of described connecting head (14) is a tapered slope.

5. locking device according to claim 4 is characterized in that, the outer circumferential face of the internal surface of described taper lock ring (2) and described connecting head (14) is suitable.

6. according to each described locking device of claim 1-5, it is characterized in that the periphery of described second end (34) is provided with the handle hole (38) that is used to insert application of force handle.

7. locking device according to claim 6 is characterized in that, the periphery of described first end (32) has concaveconvex shape.

8. locking device according to claim 6 is characterized in that, the periphery of described first end (32) has polygonal shape.