CN210484874U

CN210484874U - Structure for preventing simultaneous rotation and torsion of pipelines during screwing of hydraulic pipe joint

Info

Publication number: CN210484874U
Application number: CN201921233640.1U
Authority: CN
Inventors: 廖锦辉
Original assignee: Shuofeng Enterprise Co ltd
Current assignee: Shuofeng Enterprise Co ltd
Priority date: 2018-08-03
Filing date: 2019-08-01
Publication date: 2020-05-08
Anticipated expiration: 2029-08-01
Also published as: TWM569381U

Abstract

A structure for preventing hydraulic pipe joint from twisting when screwing is featured as setting a inner step edge and an outer step edge between switching nut and mouth, setting a snap ring on outer step edge of mouth for making said snap ring and inner step edge of switching nut form a line contact state to let mouth not rotate with switching nut when switching nut is locked.

Description

Structure for preventing simultaneous rotation and torsion of pipelines during screwing of hydraulic pipe joint

Technical Field

The disclosure relates to a structure for preventing a pipeline from twisting synchronously when a hydraulic pipe joint is screwed, which is mainly applied to the technology for preventing the hydraulic pipe from twisting synchronously when a switching nut is locked.

Background

The conventional hydraulic pipe joint is shown in fig. 1: is a prior three-dimensional decomposition schematic diagram. The method mainly comprises the following steps: a transfer nut 40, a mouth 50 and a coupling member 60; wherein:

the outer part of the adapting nut 40 is provided with a regular hexagonal rotating surface 41, the inner part of the adapting nut 40 is provided with an internal thread 42, the front part of the adapting nut 40 is provided with a sleeve port 43, the rear part of the adapting nut 40 is provided with a through hole 44, the inner diameter of the through hole 44 is smaller than that of the sleeve port 43, so as to form an inner stepped edge 45 for penetrating a mouth part 50;

the inner portion of the mouth portion 50 is provided with a through-hole 51, the mouth portion 50 is sequentially provided with a first round bar 52, a second round bar 53 and a third round bar 54 from front to back, the outer diameter of the first round bar 52 is larger than that of the second round bar 53, the outer diameter of the second round bar 53 is larger than that of the third round bar 54, the outer diameter of the first round bar 52 is larger than that of the through-hole 44 of the adapting nut 40, the outer diameters of the second round bar 53 and the third round bar 54 are smaller than that of the through-hole 44 of the adapting nut 40, an outer step 55 is formed between the first round bar 52 and the second round bar 54, when the second round bar 53 and the third round bar 54 of the mouth portion 50 pass through the through-hole 44 of the adapting nut 40, the outer step 55 and the inner step 45 of the adapting nut 40 form a surface contact state, the second round bar 53 is provided with a combining groove 56 for combining with a combining member 60, the outer diameter of the third round bar 53 is equivalent to the inner diameter of the hydraulic pipe 1, the third round bar 53 is provided with a plurality of inverted ratchet teeth 57, for use in conjunction with a hydraulic tube 1;

the front end of the combining member 60 is provided with a necking portion 61, the necking portion 62 is deformed by a strong engagement clamp method, so that the necking portion 62 can be combined and fixed with the combination groove 57 of the mouth 50 into a whole, the inside of the combining member 60 is provided with a sleeve hole 62, the inner diameter of the sleeve hole 62 is larger than the outer diameter of the hydraulic pipe 1, the inner wall of the sleeve hole 62 is provided with a plurality of engaging teeth 63 in a saw-toothed configuration, the sleeve hole 62 is deformed by the strong engagement clamp method, so that the engaging teeth 63 can be clamped and fixed with the ratchet 58 of the mouth 50 together with the ratchet 58 of the mouth 1, and the front end of the necking portion 61 of the combining member 60 is provided with a regular hexagonal fixing surface 64 for fixing when being used as an open wrench tool clamp.

However, the conventional hydraulic pipe joint described above is shown in fig. 2 and 3: is a three-dimensional and sectional schematic diagram of the prior use state. In practical use, since the outer step edge 55 of the nozzle 50 is in surface contact with the inner step edge 45 of the adapter nut 40, when the adapter nut 40 is tightened, the nozzle 50 and the hydraulic pipe 1 rotate together with the adapter nut 40, so that the adapter 2 is also twisted and tangled, and another open-end wrench tool must be used to clamp and fix the fixed surface 64 of the coupling member 60. In operation, two open-end wrench tools are required, which is troublesome and inconvenient in operation. Moreover, the fastening member 60 requires the fixing surface 64 having a regular hexagonal shape, so that the manufacturing cost and material are wasted, and the problems and disadvantages to be solved are still left.

Disclosure of Invention

The inventor of the present invention is currently engaged in the manufacturing and design of related products, accumulates years of practical experience and thoughts, and actively invests in the spirit of innovation and improvement in order to solve the problems and disadvantages existing in the conventional hydraulic pipe joint, and provides a structure for preventing the hydraulic pipe joint from being twisted together when being screwed.

The technical means applied to solve the problems and the effects compared with the prior art in the disclosure are as follows: including a switching nut, a mouth and a conjunction, be equipped with corresponding interior rank reason and outer rank reason between this switching nut and the mouth, let this mouth can wear out the switching nut for the switching nut can free rotation, is equipped with corresponding combination slot and necking down portion between this mouth and the conjunction, and the mode that utilizes powerful meshing to press from both sides lets necking down portion can be fixed in combination slot, its characterized in that: the mouth is provided with a retaining ring on the outer step edge, so that the retaining ring and the inner step edge of the adapting nut form a line contact state, and the mouth cannot rotate with the adapting nut in a synchronous manner when the adapting nut is locked, thereby effectively preventing the hydraulic pipe from twisting and tangling. Meanwhile, the combination piece does not need to be provided with a regular hexagonal fixing surface, so that the material and the cost can be saved in the manufacturing process. Moreover, only one open end wrench is needed to be operated by one hand, so the operation is more convenient and easier, and the efficacy is improved, thereby achieving the main purpose.

Drawings

FIG. 1: is a prior three-dimensional decomposition schematic diagram.

FIG. 2: is a three-dimensional schematic diagram of the prior use state.

FIG. 3: is a cross-sectional view of the prior use state.

FIG. 4: is a three-dimensional combined partial section schematic diagram of the present disclosure. FIG. 5: is a schematic perspective exploded view of the present disclosure.

FIG. 6: is a cross-sectional combination schematic diagram of the present disclosure.

FIG. 7: is a perspective view of the present disclosure in combination with a hydraulic tube.

FIG. 8: is a schematic perspective view of the use state of the present disclosure.

FIG. 9: is a cross-sectional schematic view of the using state of the present disclosure.

Wherein the reference numerals are as follows:

this disclosure in part

1 Hydraulic pipe

2 connecting pipe

3 external screw thread

10 switching nut

11 plane of rotation

12 internal screw thread

13 socket joint

14 perforation

15 inner edge of step

20 mouth

21 axle hole

22 first round bar

23 second round bar

24 third round bar

25 conical surface

26 outer edge of step

27 bonding groove

28 ratchet tooth

29 clasp ring

30 combination piece

31 necking part

32 socket joint hole

33 engaging tooth

Existing section

40 switching nut

41 plane of rotation

42 internal thread

43 socket joint

44 perforation

45 inner edge

50 mouth

51 axle hole

52 first round bar

53 second round bar

54 third round bar

55 outer edge of step

56 bonding groove

57 ratchet

60 combination piece

61 necking part

62 sleeve joint hole

63 meshing tooth

64 fixing surface

Detailed Description

To facilitate a better understanding of the disclosure, its structural and functional benefits attained by its uses, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration, various embodiments in which:

a structure for preventing simultaneous twisting of a pipeline when a hydraulic pipe joint is screwed, please refer to fig. 4, which is a schematic perspective sectional view of the present disclosure, fig. 5 and 6, which are schematic perspective exploded and sectional views of the present disclosure, and fig. 7, which is a schematic perspective view of the present disclosure combined with a hydraulic pipe, and mainly includes: an adapting nut 10, a mouth 20 and a combining piece 30; wherein:

the outer part of the adapting nut 10 is provided with a regular hexagonal rotating surface 11, the inner part of the adapting nut 10 is provided with an internal thread 12, the front part of the adapting nut 10 is provided with a sleeve port 13, the rear part of the adapting nut 10 is provided with a through hole 14, the inner diameter of the through hole 14 is smaller than that of the sleeve port 13, so as to form an inner stepped edge 15 for penetrating a mouth part 20;

the inner part of the mouth part 20 is provided with a through shaft hole 21, the mouth part 20 is sequentially provided with a first round bar 22, a second round bar 23 and a third round bar 24 from front to back, the outer diameter of the first round bar 22 is larger than that of the second round bar 23, the outer diameter of the second round bar 23 is larger than that of the third round bar 24, the outer diameter of the first round bar 22 is larger than that of the through hole 14 of the adapting nut 10, the outer diameters of the second round bar 23 and the third round bar 24 are smaller than that of the through hole 14 of the adapting nut 10, the front end of the first round bar 22 is provided with a conical surface 25 which is narrow in front and wide in back, an outer stepped edge 26 is formed between the first round bar 22 and the second round bar 24, the second round bar 23 is provided with a combining groove 27 for combining with a combining piece 30, the outer diameter of the third round bar 23 is equivalent to that of the inner diameter of the hydraulic pipe 1, the third round bar 23 is provided with a plurality of ratchet teeth 28 which are in a hook shape for tightly connecting with the hydraulic pipe 1, the outer step edge 26 of the mouth 20 is provided with a retaining ring 29, so that when the second round bar 23 and the third round bar 24 of the mouth 20 pass through the through hole 14 of the adapting nut 10, the retaining ring 29 and the inner step edge 15 of the adapting nut 10 can form a line contact state;

the front end of the combining member 30 is provided with a necking portion 31, the necking portion 31 is deformed by a strong engagement clip method, so that the necking portion 31 can be combined and fixed with the combining groove 27 of the mouth 20 into a whole, a sleeve hole 32 is arranged inside the combining member 30, the inner diameter of the sleeve hole 32 is larger than the outer diameter of the hydraulic pipe 1, the inner wall of the sleeve hole 32 is provided with a plurality of engaging teeth 33 in a saw-toothed configuration, the sleeve hole 32 is deformed by the strong engagement clip method, so that the engaging teeth 33 can clamp and fix the hydraulic pipe 1 together with the ratchet 28 of the mouth 20.

The present disclosure combined by the above element structures provides a structure for preventing the pipeline from simultaneously twisting when the hydraulic pipe joint is screwed, and in practical operation application:

please refer to FIG. 8 and FIG. 9, which are schematic diagrams of the present disclosure in a three-dimensional and cross-sectional view. When the operator connects the hydraulic pipe 1 to the connection pipe 2, the internal thread 12 of the adapting nut 10 is locked in the external thread 3 of the hydraulic pipe joint 2 only by hand, and then the opening wrench is sleeved on the rotating surface 11 of the adapting nut 10, so that the internal thread 12 of the adapting nut 10 can be pulled to be locked in the external thread 3 of the connection pipe 2, and because a line contact state is formed between the retaining ring 29 of the mouth part 20 and the inner step edge 15 of the adapting nut 10, when the adapting nut 10 is locked, the mouth part 20 and the hydraulic pipe 1 can not rotate along with the adapting nut 10, and the situation that the hydraulic pipe 1 is twisted and entangled can be effectively prevented. Meanwhile, the fastener 30 does not need to be provided with a regular hexagonal fixing surface, so that the material and cost can be saved in manufacturing. Moreover, only one open end wrench needs to be operated by one hand, so that the operation is more convenient and easier.

In summary, the present disclosure provides a structure for preventing the hydraulic pipe joint from twisting during screwing, which, after the practical manufacturing and repeated operation tests of the inventor, proves that the expected functional benefits of the present disclosure can be achieved, and meanwhile, the inventor has no first creation for the current workshop, has industrial utilization value, and admittedly meets the significance of the utility model and the advancement, and the inventor proposes the utility model patent application to the jun bureau according to the regulations of the patent law.

Claims

1. A structure for preventing simultaneous rotation and torsion of pipelines when a hydraulic pipe joint is screwed comprises: a switching nut, a mouth and a conjunction, this switching nut is equipped with a perforation, lets during this mouth can wear to locate the switching nut, is equipped with corresponding interior step edge and outer step edge between this switching nut and the mouth, lets this switching nut can the free rotation, and this mouth is fixed as an organic whole, its characterized in that with the conjunction: the outer step edge of the mouth is provided with a retaining ring, so that the retaining ring and the inner step edge of the adapting nut form a line contact state.

2. The structure for preventing simultaneous twisting of a pipe line when a hydraulic pipe joint is tightened according to claim 1, wherein: the interior of the adapting nut is provided with an internal thread.

3. The structure for preventing simultaneous twisting of a pipe line when a hydraulic pipe joint is tightened according to claim 1, wherein: the exterior of the adapting nut is provided with a regular hexagonal rotating surface.

4. The structure for preventing simultaneous twisting of a pipe line when a hydraulic pipe joint is tightened according to claim 1, wherein: the outer part of the mouth part is provided with a plurality of reverse-hook-shaped ratchets, and the inner part of the combining part is provided with a plurality of engaging teeth which are arranged in a saw-toothed shape.

5. The structure for preventing simultaneous twisting of a pipe line when a hydraulic pipe joint is tightened according to claim 1, wherein: the front end of the mouth part is provided with a conical surface which is narrow in front and wide in back.

6. The structure for preventing simultaneous twisting of a pipe line when a hydraulic pipe joint is tightened according to claim 1, wherein: a corresponding necking part and a combining groove are arranged between the mouth part and the combining piece.