CN113586819A

CN113586819A - Loose joint device of valve and pipe fitting

Info

Publication number: CN113586819A
Application number: CN202110832066.7A
Authority: CN
Inventors: 叶海港
Original assignee: Wenzhou Polytechnic
Current assignee: Wenzhou Polytechnic
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-11-02

Abstract

The invention provides a loose joint device of a valve and a pipe fitting, which relates to the technical field of loose joint structures and comprises a loose joint part and a valve body joint, wherein the loose joint part comprises a pipe body, any one end of the pipe body is detachably connected with the valve body joint, the other end of the pipe body is provided with a connecting port, a connecting pipe matched with the connecting port is arranged in the connecting port in a penetrating way, the side wall of the connecting pipe, opposite to the connecting port, is provided with a sealing part, and the pipe body is provided with a locking part for locking the connecting pipe on the pipe body. The pipe body can be connected with any one of the pipeline or the valve body joint firstly through the invention, then the connecting pipe penetrating through the connecting port is connected with the valve body joint or the pipeline, the connecting pipe and the valve body joint can rotate relatively at the moment, and after the pipeline and the valve body joint are respectively connected with the movable joint part, the connecting pipe is fixed on the pipe body through the locking piece arranged on the pipe body, so that the connecting pipe and the pipe body are prevented from rotating.

Description

Loose joint device of valve and pipe fitting

Technical Field

The invention relates to the technical field of loose joint structures, in particular to a loose joint device of a valve and a pipe fitting.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves for fluid control systems, from the simplest shut-off valves to the most complex valves used in autonomous systems, are of a wide variety of types and specifications, the valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of the medium to be transported, and loose joints are required for connection between the valves and pipes, but there are problems with existing loose joints:

for example, when the loose joint structure of the existing valve and the pipe fitting is connected with the valve, the loose joint structure is usually required to be installed in a narrow space, so that the inoperability during installation is greatly increased, and the installation difficulty is increased.

Disclosure of Invention

The invention aims to provide a loose joint device for a valve and a pipe fitting, which can solve the problems in the prior art and is convenient for an operator to install the valve and the pipe fitting.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a loose joint device of valve and pipe fitting, including loose joint portion and valve body joint, loose joint portion includes the body, and the arbitrary one end and the valve body joint of body can be dismantled and be connected, and the connector has been seted up to the other end of body, wears to be equipped with the connecting pipe that matches with it in the connector, is equipped with the sealing on the lateral wall that the connecting pipe is relative with the connector, is equipped with the locking piece with the connecting pipe locking on the body.

In some embodiments of the invention, the locking member includes a locking ring that is disposed around the connector tube, the locking ring being rotatably coupled to the tube body, and the connector tube being threadably coupled to the locking ring.

In some embodiments of the invention, the pipe body further comprises a locking block, a plurality of locking holes are formed in the side wall of the pipe body opposite to the locking ring, limiting holes corresponding to the locking holes are formed in the side wall of the locking ring, and the locking block is arranged in the locking holes after penetrating through the locking holes and the limiting holes.

In some embodiments of the invention, the inner diameter of the connection port on the side close to the pipe body is gradually reduced toward the side far away from the pipe body.

In some embodiments of the invention, the sealing portion comprises a sealing sleeve matching the connection port, the sealing sleeve being mounted on the connection tube.

In some embodiments of the present invention, a limiting ring is disposed at an end of the connecting tube opposite to the tube body.

In some embodiments of the present invention, an end of the connecting tube facing away from the tube body is provided with a bellows in communication with the connecting tube.

In some embodiments of the invention, a spoiler is rotatably disposed within the tube.

In some embodiments of the present invention, the number of the tube bodies is two, and the two tube bodies are detachably connected.

In some embodiments of the present invention, a locking sleeve is sleeved on the tube body, and the locking sleeve is in threaded connection with the two tube bodies.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the application provides a loose joint device of valve and pipe fitting, including loose joint portion and valve body joint, loose joint portion includes the body, and the arbitrary one end and the valve body joint of body can be dismantled and be connected, and the connector has been seted up to the other end of body, wears to be equipped with the connecting pipe that matches with it in the connector, is equipped with the sealing on the lateral wall that the connecting pipe is relative with the connector, is equipped with the locking piece with the connecting pipe locking on the body. The device is detachably connected with the valve body joint through the connecting part, so that the valve joint can be prevented from being directly fixed on a pipeline in actual use, the disassembly of an operator is not facilitated when the valve joint is separated from the pipeline in the later period and the pipeline is separated from the pipeline, and the pipeline and the valve joint are damaged in the later period of disassembly due to the direct connection of the valve joint and the pipeline, so that unnecessary economic loss is caused; in real life, a pipeline is usually fixed on the ground or a wall, the moving space of the pipeline is limited, the volume of a valve body connected with the pipeline is slightly large, the pipeline cannot normally move or rotate at a narrow position, and then the pipeline and the valve body joint are extremely difficult to install; after pipeline and valve body connector finish with loose joint portion connection respectively, the connecting pipe is fixed on the body to the lock piece of rethread setting on the body, prevent that connecting pipe and body from taking place the rotation, influence the leakproofness between body and the connecting pipe, when the lock piece is fixed connecting pipe and body, the sealing that the cover was located on the connecting pipe carries out the shutoff with the clearance between connector and the connecting pipe under the restriction of lock piece, strengthen the leakproofness between body and the connecting pipe, avoid the emergence of water leakage accident.

During the in-service use, earlier with pipeline and valve body joint junction clean up, then with the back that the live connecting portion and pipeline and valve body joint be connected one by one firm, the body is pulled out with the connecting pipe is gradual to the lock piece that the rethread set up on the body to fix the connecting pipe on the body, then the leakproofness between rethread water inspection body and the connecting pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the tube assembly of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 2.

Icon: 1. a connecting pipe; 2. a locking ring; 3. a pipe body; 4. a locking sleeve; 5. a bellows; 6. a spoiler; 7. a seal ring; 8. a limiting ring; 9. sealing sleeves; 10. a connecting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1-4, fig. 1 is a schematic front view of the present invention; FIG. 2 is a schematic cross-sectional view of the present invention; FIG. 3 is a schematic view of the tube 3 according to the present invention; fig. 4 is a partially enlarged view of a portion a in fig. 2.

The embodiment of the application provides a loose joint device of valve and pipe fitting, including loose joint portion and valve body joint, loose joint portion includes body 3, and arbitrary one end and the valve body joint of body 3 can be dismantled and be connected, and the connector has been seted up to the other end of body 3, wears to be equipped with connecting pipe 1 that matches with it in the connector, is equipped with the sealing on the lateral wall that connecting pipe 1 is relative with the connector, is equipped with the locking piece of connecting pipe 1 locking on body 3. The device is detachably connected with the valve body joint through the connecting part, so that the valve joint can be prevented from being directly fixed on a pipeline in actual use, the disassembly of an operator is not facilitated when the valve joint is separated from the pipeline in the later period and the pipeline is separated from the pipeline, and the pipeline and the valve joint are damaged in the later period of disassembly due to the direct connection of the valve joint and the pipeline, so that unnecessary economic loss is caused; in real life, a pipeline is usually fixed on the ground or a wall, the moving space of the pipeline is limited, the volume of a valve body connected with the pipeline is slightly large, the pipeline cannot normally move or rotate at a narrow position, and then the pipeline and a valve body joint are extremely difficult to install; after finishing with loose joint portion connection respectively when pipeline and valve body connector, the rethread sets up the locking piece on body 3 and fixes connecting pipe 1 on body 3, prevent that connecting pipe 1 and body 3 from taking place the rotation, influence the leakproofness between body 3 and the connecting pipe 1, when the locking piece is fixed connecting pipe 1 and body 3, the sealing part that the cover was located on connecting pipe 1 carries out the shutoff with the clearance between connector and the connecting pipe 1 under the restriction of locking piece, strengthen the leakproofness between body 3 and the connecting pipe 1, avoid the emergence of water leakage accident.

During the in-service use, earlier with pipeline and valve body joint junction clean up, then with the back that the live connecting portion and pipeline and valve body joint be connected one by one firm, body 3 is pulled out gradually with connecting pipe 1 to the lock piece that the rethread set up on body 3 to fix connecting pipe 1 on body 3, then the leakproofness between rethread water inspection body 3 and connecting pipe 1.

Furthermore, the pipe body 3 is made of cast iron, the nodular cast iron pipe has the advantages of high water supply pressure bearing capacity, capability of resisting external load and adapting to changes of geological conditions, high strength, good toughness, corrosion resistance, convenient installation of a flexible interface, strong shock resistance, low labor intensity and the like, can be suitable for sections with poor geology and crossing roads without additionally processing steel pipes, and is strong in corrosion resistance, so that the nodular cast iron pipe is suitable for coastal and saline-alkali regions and is widely applied to underground pipeline engineering at present. The large-scale pipeline installation project can embody the advantages of convenient installation and low labor intensity. The ductile iron pipe has good sealing performance, is not easy to leak, can reduce the leakage rate of the pipe network and reduce the daily maintenance cost of the pipe network. The steel pipe can be divided into a seamed steel pipe and a seamless steel pipe, the seamed pipe is generally adopted in the middle pipeline of the water supply pipe, and compared with the nodular cast iron pipe, the steel pipe has the advantages of good toughness, high tensile strength, thin pipe wall, high pressure resistance, long pipe length, few joints and the like. The ductile cast iron pipe adopts the flexible joint, the construction operation is more convenient, the construction efficiency can be improved, the construction condition can be improved, and the construction cost can be reduced.

Further, the material of connecting pipe 1 is the PVC material, and PVC material matter is light, and the transport loading and unloading is convenient: the density is less, and transport, loading and unloading, construction are convenient. The corrosion resistance is excellent: has excellent acid resistance, alkali resistance and corrosion resistance, and is suitable for the application of chemical industry. The fluid resistance is small: the inner wall of the pipe is smooth, the roughness coefficient is only 0.009, the fluid resistance is small, the hydraulic condition of the pipe network is effectively improved, and the system operation cost is reduced. The mechanical strength is large: the pipe has good pressure resistance, impact resistance and tensile strength. The construction is simple: the pipeline connection construction is rapid and easy, and the construction engineering cost is low. The manufacturing cost is low: low price, convenient transportation and construction, long service life and low overall cost. Does not affect the water quality: the dissolution test proves that the water quality is not affected, and the method is suitable for large-area popularization and application.

Furthermore, the outer wall of the connecting pipe 1 is mechanically polished to be flat, the inner wall of the connecting port is also polished to be matched with the connecting pipe 1 very tightly, and the use of the device can be prevented from being influenced by the overlarge gap between the sealing part and the connecting pipe 1 as well as the mounting port through the design.

In some embodiments of the present invention, the locking member includes a locking ring 2, the locking ring 2 is disposed on the connecting tube 1, the locking ring 2 is rotatably connected to the tube body 3, and the connecting tube 1 is threadedly connected to the locking ring 2. When locking ring 2 and the cooperation of connecting pipe 1 through setting up were used, can strengthen the leakproofness between connecting pipe 1 and the body 3, its principle is: when an operator rotates the locking ring 2 to make circular motion on the pipe body 3, the locking ring 2 applies a force to the pipe body 3 to force the connecting pipe 1 to gradually move outwards the pipe body 3; when connecting pipe 1 moves outward to body 3 gradually, the outer wall of body 3 and the inner wall contact of connector are inseparabler more and more, and the clearance between body 3 and the connector is more and more littleer this moment, and the cover is equipped with the sealing on connecting pipe 1 moreover under the extrusion of connecting pipe 1 and connector with the gap shutoff between connecting pipe 1 and the connector, increases the leakproofness between body 3 and the connector then.

In some embodiments of the present invention, the locking device further includes a locking block, a plurality of locking holes are formed in a side wall of the pipe body 3 opposite to the locking ring 2, a limiting hole corresponding to the locking hole is formed in a side wall of the locking ring 2, and the locking block is disposed in the locking hole after penetrating through the locking hole and the limiting hole. Through having seted up a plurality of locking holes on the lateral wall that body 3 is relative with lock ring 2, set up the spacing hole that corresponds with the locking hole on the lateral wall of lock ring 2, can realize fixing lock ring 2 and body 3 after lock ring 2 fixes connecting pipe 1 suitable position, avoid connecting pipe 1 and body 3 to take place the rotation, influence the leakproofness between body 3 and the connecting pipe 1.

In some embodiments of the invention, the inner diameter of the connection port on the side close to the tubular body 3 is gradually reduced toward the side far from the tubular body 3. Through reducing the connector in the internal diameter that is close to body 3 one side gradually to the one side of keeping away from body 3, can utilize unsmooth complex principle more inseparabler with connecting pipe 1 and connector complex, avoid influencing the leakproofness between body 3 and the connecting pipe 1. And the local part of the connecting pipe 1 positioned in the pipe body 3 is completely matched with the shape of the connecting port.

In some embodiments of the present invention, the sealing portion comprises a sealing sleeve 9 matching with the connection port, the sealing sleeve 9 is mounted on the connection pipe 1, and an annular groove is opened on the inner wall of the connection port. The annular groove that sets up can be held through connecting pipe 1 and connector extruded seal cover 9 part, forms a complete sealing system then, and then the effectual leakproofness that has increased this device.

Furthermore, the annular grooves are formed in the axial direction of the connecting port at equal intervals, so that multilayer protection is provided for sealing the connecting pipe 1 and the connecting port, and the sealing capacity of the device is improved.

Furthermore, the material of the sealing sleeve 9 is NBR nitrile rubber sealing ring, which is suitable for being used in media such as petroleum-based hydraulic oil, glycol-based hydraulic oil, diester-based lubricating oil, gasoline, water, silicon grease, silicon oil and the like. The rubber sealing element has the widest application and the lowest cost at present. Are not suitable among polar solvents, such as ketones, ozone, nitrohydrocarbons, MEK and chloroform. The temperature range of the catalyst is-40 to 120 ℃.

In some embodiments of the present invention, the end of the connecting tube 1 opposite to the tube body 3 is provided with a limiting ring 8. Can play certain limiting displacement to connecting pipe 1 in the intraoral motion of connecting pipe through the spacing ring 8 that sets up, when spacing playing limiting displacement, can also extrude the local compaction of the seal cover 9 of connector by connector and connecting pipe 1, provide extra sealing effect for the tip of connecting pipe 1 and connector, then carry out the shutoff to the gap that connecting pipe 1 is close to installing port one side, can further avoid flowing the water in body 3 in long-time use, seal cover 9 outstanding results in rivers to flow from the gap between connector and connecting pipe 1 in the partial performance failure of connector, influence the long-term use of this device.

Furthermore, the side wall of the limiting ring 8 contacting with the pipe body 3 is provided with a sealing ring 7, so that the sealing performance of the joint of the connecting pipe 1 and the pipe body 3 can be further enhanced.

In some embodiments of the invention, the end of the connecting tube 1 facing away from the tube body 3 is provided with a bellows 5 communicating with the connecting tube 1. Through being equipped with bellows 5 with it intercommunication in the one end that connecting pipe 1 deviates from body 3, the bellows 5 of setting enables connecting pipe 1 and is connected with the valve body or the pipeline that need be connected under arbitrary harsh environment, portability when increasing this device and connecting, and the bellows 5 of setting can also release the impact force that the rivers that flow carried, the too big water pipe that leads to of energy of avoiding rivers to carry breaks, cause serious economic loss or incident.

In some embodiments of the invention, a spoiler 6 is rotatably provided within the pipe body 3. Through being equipped with spoiler 6 in body 3, the bellows 5 of setting can also release the impact force that the rivers that flow carried, and the energy that avoids the rivers to carry is too big to lead to the water pipe to break, causes serious economic loss or incident.

In some embodiments of the present invention, the number of the tube 3 is two, and the two tubes 3 are detachably connected. Design into two through the quantity with body 3, can increase the application range of this device, difficulty when reducing operating personnel installation can also increase the effective length when pipeline and valve body are connected when the pipe connection is difficult, increases the usable range of this device.

Further, the tube body 3 is connected through threads, which can increase the portability of the device when connected. And when the two pipe bodies 3 are connected, a sealant is also coated, so that the sealing property of the garden is improved.

Furthermore, a connecting rod 10 is hinged on any one pipe body 3, and a mounting opening matched with the connecting rod is formed in the side wall of the other pipe body 3; after two body 3 docks, arrange connecting rod 10 in the installing port back, two body 3 realize coming the butt joint promptly, and the junction of two body 3 is equipped with the sealing washer.

In some embodiments of the present invention, a locking sleeve 4 is sleeved on the tube 3, and the locking sleeve 4 is in threaded connection with the two tubes 3. Through the joint strength that locking sleeve 4 that is equipped with on body 3 can increase two bodies 3, prevent then that body 3 from breaking away from the normal use that the contact influences this device under the impact of rivers.

To sum up, this application embodiment provides a loose joint device of valve and pipe fitting, including loose joint portion and valve body joint, loose joint portion includes body 3, and arbitrary one end and the valve body joint of body 3 can be dismantled and be connected, and the connector has been seted up to the other end of body 3, wears to be equipped with connecting pipe 1 that matches with it in the connector, is equipped with the sealing part on the lateral wall that connecting pipe 1 is relative with the connector, is equipped with the locking piece of connecting pipe 1 locking on body 3 on the body 3. The device is detachably connected with the valve body joint through the connecting part, so that the valve joint can be prevented from being directly fixed on a pipeline in actual use, the disassembly of an operator is not facilitated when the valve joint is separated from the pipeline in the later period and the pipeline is separated from the pipeline, and the pipeline and the valve joint are damaged in the later period of disassembly due to the direct connection of the valve joint and the pipeline, so that unnecessary economic loss is caused; in real life, a pipeline is usually fixed on the ground or a wall, the moving space of the pipeline is limited, the volume of a valve body connected with the pipeline is slightly large, the pipeline cannot normally move or rotate at a narrow position, and then the pipeline and a valve body joint are extremely difficult to install; after finishing with loose joint portion connection respectively when pipeline and valve body connector, the rethread sets up the locking piece on body 3 and fixes connecting pipe 1 on body 3, prevent that connecting pipe 1 and body 3 from taking place the rotation, influence the leakproofness between body 3 and the connecting pipe 1, when the locking piece is fixed connecting pipe 1 and body 3, the sealing part that the cover was located on connecting pipe 1 carries out the shutoff with the clearance between connector and the connecting pipe 1 under the restriction of locking piece, strengthen the leakproofness between body 3 and the connecting pipe 1, avoid the emergence of water leakage accident.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a loose joint device of valve and pipe fitting, its characterized in that, includes loose joint portion and valve body joint, loose joint portion includes the body, the arbitrary one end of body with the connection can be dismantled to the valve body joint, the connector has been seted up to the other end of body, wear to be equipped with the connecting pipe that matches with it in the connector, the connecting pipe with be equipped with the sealing on the lateral wall that the connector is relative, be equipped with on the body with the connecting pipe locking in locking piece on the body.

2. The valve and fitting union of claim 1, wherein the locking member comprises a locking ring, the locking ring is disposed on the connecting tube, the locking ring is rotatably coupled to the body, and the connecting tube is threadedly coupled to the locking ring.

3. The loose joint device of the valve and the pipe fitting as claimed in claim 2, further comprising a locking block, wherein a plurality of locking holes are formed in a side wall of the pipe body opposite to the locking ring, a limiting hole corresponding to the locking hole is formed in a side wall of the locking ring, and the locking block is arranged in the locking hole after penetrating through the locking hole and the limiting hole.

4. The valve and pipe union device of claim 1, wherein the inner diameter of the connecting port on the side close to the pipe body is gradually reduced toward the side far from the pipe body.

5. The valve and pipe union device of claim 4, wherein the sealing portion comprises a sealing sleeve that mates with the connection port, the sealing sleeve being mounted on the connection pipe.

6. The valve and pipe union device of claim 5, wherein the connecting pipe is provided with a stop ring at an end opposite to the pipe body.

7. A valve and pipe union device according to claim 6, wherein the end of the connecting pipe facing away from the pipe body is provided with a bellows in communication with the connecting pipe.

8. The valve and pipe union device of claim 1, wherein a spoiler is rotatably disposed in the pipe body.

9. The valve and pipe union device of claim 1, wherein the number of said pipes is two, and two of said pipes are detachably connected.

10. The valve and pipe union device of claim 9, wherein a locking sleeve is sleeved on the pipe body, and the locking sleeve is in threaded connection with the two pipe bodies.