Anti-loosening pipe joint

Abstract

The utility model discloses an anti-loosing pipe joint which comprises a joint body, anti-loosing sleeves, pipelines, anti-loosing assemblies, fixing rings, anti-loosing rings and clamping rings, the anti-loosing sleeves are arranged at the two ends of the joint body respectively, the interiors of the two anti-loosing sleeves are both connected with the pipelines in a threaded mode, and the anti-loosing assemblies are connected with the pipelines in a threaded mode. Anti-loosening assemblies used for preventing loosening are installed on the outer portions of the pipelines, each anti-loosening assembly comprises a fixing ring, an anti-loosening ring and a clamping ring, the fixing rings are movably installed on one sides of the outer portions of the pipelines, the side faces of the fixing rings are connected with the anti-loosening rings, and the clamping rings are embedded in the connecting positions of the joint body and the interiors of the anti-loosening sleeves. The clamping ring and the anti-loosening ring are used in a matched mode, the two clamping blocks are symmetrically arranged on the side face of the fixing ring, the two clamping grooves are symmetrically formed in the side face of the anti-loosening ring, the connecting stability between a pipeline and the connector body can be greatly improved, and the pipeline is not prone to loosening after encountering external high-strength vibration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe joint, especially the technical field of pipe joint of preventing loosening. BACKGROUND

[0002] Pipe joint is a part of connecting pipeline or mounting pipeline on hydraulic element in hydraulic system, which is a general term of connecting piece capable of being assembled and disassembled in fluid passage.

[0003] At present, pipe joint all needs to process thread on connecting pipe, then connects with nut, pipe fitting and sealing element, so when repairing connecting pipe, especially in field construction, it needs to be equipped with thread processing tool and other tools, these tools are large and heavy, which increases transportation difficulty and construction difficulty, and the connecting port is easy to leak, needs to be reworked, and influences repair quality.

[0004] To solve the problems in the background art, for example, the pipe joint disclosed in application No.CN200420014939.5 contains nut, pipe fitting and sealing element, and its features are pressing element, conical connecting piece and fastening piece, the pressing element has taper hole or round hole matched with the taper of the conical connecting piece, the fastening piece is sleeved on the pressing element, one end of the fastening piece has thread matched with the thread of the conical connecting piece, the gap between the inner hole of the fastening piece and the pressing element can put in the connected pipe, when the fastening piece moves to the large end of the taper, the pressing element also moves to the large end of the taper, so the pressing element is expanded, and the connected pipe is pressed on the inner wall of the fastening piece, the pressing element of the pipe joint of the utility model has expansion performance, and the connected pipe is pressed between the pressing element and the fastening piece, the pressing element can be made of plastic or rubber material, since it does not need thread connection, it can be used for connecting thin pipe, but the structure still has the following defects:

[0005] Although the structure uses the expansion performance of the pressing element to press the connected pipe between the pressing element and the fastening piece, but the pipe joint and the joint pipe may be loosened due to various external factors after long-term use, which affects the conveying function of the pipeline.

[0006] To solve the problems raised in the above-mentioned technologies, for example, application No. CN201420837895.X discloses a pipe joint preventing loosening, comprising a joint pipe and a gland, the gland is sleeved on the joint pipe, the gland and the joint pipe are detachably connected through threads, a second sealing ring, an elastic snap ring, a snap ring seat and a first sealing ring are sequentially arranged between the gland and the joint pipe, the lower end of the outer wall of the gland is further provided with at least two protrusions, the thickness of the protrusions is half of the thickness of the side wall of the gland, the upper end of the protrusions is a slope surface, and an internal hexagonal screw is screwed in the center of the protrusions, the internal hexagonal screw penetrates through the gland and abuts against the outer wall of the joint pipe, since the protrusions are arranged on the outer wall of the gland and the internal hexagonal screw is arranged in the protrusions and abuts against the pipe joint, the pipe joint can be effectively prevented from loosening with the joint pipe after long-term use, and since the upper end of the protrusions is a slope surface and the internal hexagonal screw is completely embedded in the protrusions, the user's fingers can be effectively prevented from being scratched when the cap is screwed, and the safety is improved, but the structure still has the following defects:

[0007] Although the structure uses the protrusions to abut against the outer wall of the joint pipe, thereby improving the loosening prevention effect, if high-strength external vibration is encountered for a long time, the pipe is still prone to loosening, thereby resulting in an unsatisfactory loosening prevention effect. SUMMARY

[0008] The purpose of the present utility model is to solve the problems in the prior art, and provide a pipe joint preventing loosening, which can greatly improve the connection stability between a pipe and a joint body and prevent loosening after high-strength external vibration.

[0009] To achieve the above-mentioned purpose, the present utility model provides a pipe joint preventing loosening, comprising a joint body, an anti-loosening sleeve, a pipe, an anti-loosening assembly, a fixing ring, an anti-loosening ring and a clamping ring, both ends of the joint body are provided with anti-loosening sleeves, the interiors of the two anti-loosening sleeves are threadedly connected with pipes, the exteriors of the pipes are both provided with anti-loosening assemblies for preventing loosening, the anti-loosening assembly comprises a fixing ring, an anti-loosening ring and a clamping ring, the fixing ring is movably installed on one side of the exterior of the pipe, the side surface of the fixing ring is connected with the anti-loosening ring, the clamping ring is embedded in the connection between the joint body and the interior of the anti-loosening sleeve, and the clamping ring is used in cooperation with the anti-loosening ring.

[0010] Preferably, the side surface of the fixing ring is symmetrically provided with two clamping blocks, the side surface of the anti-loosening ring is symmetrically provided with two clamping grooves, and the clamping blocks are matched with the clamping grooves.

[0011] Preferably, the other surface of the anti-loosening ring is provided with a plurality of sharp teeth, the side surface of the clamping ring is provided with a plurality of anti-loosening grooves, and the sharp teeth are used for being embedded in the anti-loosening grooves.

[0012] Preferably, the tines and the anti-loosening grooves are annularly and equidistantly distributed.

[0013] Preferably, the fixing ring, the anti-loosening ring and the clamping ring are of the same size and are made of nickel alloy.

[0014] Preferably, the outer side of the inner part of the anti-loosening sleeve is provided with a sealing ring, which is movably installed on the outer part of the pipeline and is made of an ethylene-propylene-diene sealing ring.

[0015] The utility model discloses the beneficial effects of:

[0016] 1. The utility model discloses a anti -loosening subassembly can greatly improve the connecting stability between pipeline and joint body, first use special tool and tighten the fixing ring on the outer wall one side of pipeline, then the clamping block of fixing ring side and the clamping groove of anti -loosening ring side are connected, and then realize the installation of fixing ring and anti -loosening ring, then the one end of pipeline with anti -loosening ring is screwed into the anti -loosening sleeve, along with pipeline constantly screwing in, until the tine of the other side of anti -loosening ring is completely inserted into the anti -loosening groove on the clamping ring, and then realize the fixed connection between pipeline and joint body, because the tine is completely inserted into the anti -loosening groove, makes the tine firmly resist the clamping ring, therefore in the later use process, even if pipeline is subjected to the high -strength vibration force of outside, also can not lead to the loose connection end, avoids the occurrence of the oil leakage phenomenon, provides great convenience for staff, solves the situation that pipeline is loose after long -time high -strength vibration of outside, and then leads to the problem of undesirable anti -loosening effect.

[0017] 2. The utility model discloses a sealing ring can improve the sealing performance, when the pipeline is screwed in the process cooperation sleeve is covered sealing ring, make sealing ring can fill the gap between anti -loosening sleeve and pipeline, thereby improved the leakproofness, and sealing ring adopts ethylene -propylene -diene sealing ring, and ethylene -propylene -diene sealing ring has good leakproofness and durability, makes pipeline not easy to leak after long -time use, and then provides great convenience for staff. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the utility model discloses a prevent loosening's pipe joint;

[0019] Figure 2 It is the clamping block and clamping groove schematic view of the utility model discloses a prevent loosening's pipe joint;

[0020] Figure 3 It is the tine schematic view of the utility model discloses a prevent loosening's pipe joint;

[0021] Figure 4It is the anti-loose groove schematic view of the pipe joint of the utility model for preventing loosening;

[0022] Figure 5 It is the sectional view of the pipe joint of the utility model for preventing loosening;

[0023] In the drawing: 1 - joint body, 2 - anti-loose sleeve, 3 - pipeline, 4 - anti-loose assembly, 41 - fixed ring, 411 - clamping block, 42 - anti-loose ring, 422 - clamping groove, 423 - tine, 43 - clamping ring, 433 - anti-loose groove, 5 - sealing ring. Specific implementation

[0024] Referring to Figures 1 to 5 The utility model discloses a kind of pipe joints for preventing loosening, including joint body 1, anti-loose sleeve 2, pipeline 3, anti-loose assembly 4, fixed ring 41, anti-loose ring 42, clamping ring 43, the both ends of the joint body 1 are provided with anti-loose sleeve 2, the inside of two anti-loose sleeve 2 is all screw thread connection with pipeline 3, the outside of the pipeline 3 is all installed with the anti-loose assembly 4 for preventing loosening, the anti-loose assembly 4 includes fixed ring 41, anti-loose ring 42 and clamping ring 43, the fixed ring 41 movably installs at the outside one side of pipeline 3, the side of the fixed ring 41 is connected with anti-loose ring 42, the clamping ring 43 is embedded in the connecting place of joint body 1 and anti-loose sleeve 2 inside, the clamping ring 43 is used in cooperation with anti-loose ring 42.

[0025] Referring to Figure 2 The utility model discloses a kind of pipe joints for preventing loosening, the side of the fixed ring 41 is symmetrically provided with two clamping blocks 411, the side of the anti-loose ring 42 is symmetrically provided with two clamping grooves 422, the clamping block 411 is adapted with clamping groove 422, by setting clamping block 411 and clamping groove 422, the fixed connection between fixed ring 41 and anti-loose ring 42 can be realized, to help the connection stability between pipeline 3 and joint body 1.

[0026] Referring to Figure 3 The utility model discloses a kind of pipe joints for preventing loosening, the other side of the anti-loose ring 42 is provided with several tines 423, the side of the clamping ring 43 is provided with several anti-loose grooves 433, the tine 423 is used for embedding in anti-loose groove 433, the tine 423 and anti-loose groove 433 are all annularly equidistant distribution, by tine 423 embedding into anti-loose groove 433, so that tine 423 can firmly resist clamping ring 43, so even if pipeline 3 is subjected to external high-intensity vibration force in later use process, it also does not cause connecting end loosening, avoids the occurrence of oil leakage phenomenon.

[0027] Referring to Figure 1This utility model discloses a pipe joint for preventing loosening. The fixing ring 41, anti-loosening ring 42, and clamping ring 43 are all the same size and are made of nickel alloy. By making the fixing ring 41, anti-loosening ring 42, and clamping ring 43 all of the same material, the fixing ring 41, anti-loosening ring 42, and clamping ring 43 have the characteristics of corrosion resistance, high temperature resistance, and high strength, which can prevent the pipe 3 from becoming loose after long-term use.

[0028] See Figure 1 This utility model discloses a pipe joint designed to prevent loosening. Both inner and outer sides of the two anti-loosening sleeves 2 are equipped with sealing rings 5. The sealing rings 5 ​​are movably installed on the outside of the pipe 3, and are made of EPDM (ethylene propylene diene monomer) sealing rings. By using the sealing rings 5, the sealing performance is improved. When the pipe 3 is screwed in, the sealing rings 5 ​​fit together, filling the gap between the anti-loosening sleeves 2 and the pipe 3, thereby improving the sealing performance. Furthermore, the use of EPDM sealing rings provides excellent sealing and durability, making it less prone to leakage even after prolonged use, thus providing great convenience for workers.

[0029] The working process of this utility model:

[0030] In operation, this utility model discloses a pipe fitting designed to prevent loosening. First, a special tool is used to tighten the fixing ring 41 onto one side of the outer wall of the pipe 3. Then, the clamping block 411 on the side of the fixing ring 41 engages with the clamping groove 422 on the side of the anti-loosening ring 42, thereby installing the fixing ring 41 and the anti-loosening ring 42. Next, the end of the pipe 3 with the anti-loosening ring 42 is screwed into the anti-loosening sleeve 2. As the pipe 3 is continuously screwed inward, the sharp teeth 423 on the other side of the anti-loosening ring 42 are completely embedded into the anti-loosening groove 433 on the clamping ring 43, thereby achieving a fixed connection between the pipe 3 and the fitting body 1. Since several sharp teeth 423 are completely embedded in the anti-loosening groove 433, the sharp teeth 423 can firmly abut against the clamping ring 43. Therefore, even if the pipe 3 is subjected to high-intensity external vibration during later use, the connection end will not loosen, avoiding oil leakage and providing great convenience for workers.

[0031] By setting the sealing ring 5, the sealing performance can be improved. When the pipe 3 is screwed in, the sealing ring 5 is put on to fill the gap between the anti-loosening sleeve 2 and the pipe 3, thereby improving the sealing performance. At the same time, the sealing ring 5 is made of EPDM, which has good sealing performance and durability, so that the pipe 3 is not prone to leakage after long-term use, thus providing great convenience for the staff.

[0032] The above examples are illustrative of the present application and are not limiting. Any simple modifications of the present application are considered to be within the scope of the present application.

Claims

1. A loose-tight pipe joint, characterized by: The utility model provides a pipe joint, including joint body (1), anti -loose sleeve (2), pipeline (3), anti -loose assembly (4), fixed ring (41), anti -loose ring (42), clamping ring (43), both ends of joint body (1) are provided with anti -loose sleeve (2) respectively, the inside of two anti -loose sleeve (2) is all screw -threaded connection has pipeline (3), the outside of pipeline (3) is all installed for preventing loosening anti -loose assembly (4), anti -loose assembly (4) includes fixed ring (41), anti -loose ring (42) and clamping ring (43), fixed ring (41) swing installation is in the outside one side of pipeline (3), the side of fixed ring (41) is connected with anti -loose ring (42), clamping ring (43) is embedded in the connecting place of joint body (1) and anti -loose sleeve (2) inside, clamping ring (43) is used in cooperation with anti -loose ring (42).

2. A pipe joint to prevent loosening as set forth in claim 1, characterized in that: The side of fixed ring (41) is provided with two clamping blocks (411) symmetrically, the side of anti -loose ring (42) is provided with two clamping grooves (422) symmetrically, the clamping block (411) is matched with clamping groove (422).

3. A pipe joint to prevent loosening as set forth in claim 1, characterized in that: The other side of anti -loose ring (42) is provided with a plurality of tines (423), the side of clamping ring (43) is provided with a plurality of anti -loose grooves (433), the tine (423) is used for embedding in anti -loose groove (433) inner.

4. A pipe joint to prevent loosening as set forth in claim 3, characterized in that: The tine (423) and anti -loose groove (433) are all annular equally spaced distribution.

5. A pipe joint to prevent loosening as claimed in claim 3 wherein: The size of fixed ring (41), anti -loose ring (42) and clamping ring (43) is same, and fixed ring (41), anti -loose ring (42) and clamping ring (43) all adopt nickel alloy material to be made.

6. A pull resistant pipe joint as claimed in any one of claims 1 to 5 wherein: The inside outside of two anti -loose sleeve (2) is provided with sealing ring (5), sealing ring (5) swing installation is in the outside of pipeline (3), and sealing ring (5) adopts three yuan ethylene -propylene sealing ring.

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