CN109990158B

CN109990158B - Polypropylene anti-corrosion pipe joint

Info

Publication number: CN109990158B
Application number: CN201910320398.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Dongying Ruigang Investment Service Co ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2021-04-13
Anticipated expiration: 2039-04-19
Also published as: CN109990158A

Abstract

The invention belongs to the technical field of tubular joints, and particularly relates to a polypropylene anti-corrosion pipe joint; the first pipe and the second pipe are connected with the joint pipe in a welding mode; the first pipe is close to the second pipe, a groove is formed in the first pipe, a piston block is arranged in the groove, the piston block is connected with the groove in a sliding mode, and the piston block is connected with the joint pipe through a spring; a counterweight plate is arranged below the first pipe, the counterweight plate is connected with the piston block through an elastic rope, and water flow enters the first pipe and then drives the counterweight plate to move to the second pipe; the invention has simple structure, and can prevent the first pipe from falling off from the joint pipe and improve the tightness between the first pipe and the joint pipe by driving the balance weight plate to move into the second pipe by utilizing the flow of water flow in the first pipe.

Description

Polypropylene anti-corrosion pipe joint

Technical Field

The invention belongs to the technical field of tubular joints, and particularly relates to a polypropylene anti-corrosion pipe joint.

Background

The joint pipe is a connecting tool between pipelines and is a connecting point between an element and the pipeline, which can be disassembled and assembled; the joint pipe is used for linear connection of instruments and the like, the connection form is socket welding or threaded connection, the joint pipe is mainly used for low-pressure pipelines with small calibers and used for parts needing to be frequently assembled and disassembled or used for final adjustment of pipelines using threaded pipes, the structural form is suitable to adopt a metal surface contact sealing structure, and the gasket sealing structural form is usually used for common pipelines for conveying water, oil, air and the like and is made of malleable cast iron materials; in addition, the use requirement, the price and the like are also factors considered during selection; the joint pipes are of various types, and commonly used joint pipes can be generally divided into hard joint pipes and soft joint pipes, wherein the hard joint pipes are divided into three types of flaring type, clamping sleeve type and welding type according to the connection mode of the joint pipes and pipelines, and the soft joint pipes are mainly buckling type glue joint pipes.

The joint pipe is usually a joint for connecting two pipes, the two pipes can be communicated through the joint pipe, but the pressure in the joint pipe is very high, because water flow can impact the joint pipe after flowing into the joint pipe, after long-term use, the joint pipe is easy to separate from the pipe, and waste of water is caused.

Disclosure of Invention

The invention provides a polypropylene anti-corrosion pipe joint, which aims to make up the defects of the prior art and solve the problem that a pipe is easy to fall off from a joint pipe after the pipe and the joint pipe are used for a long time in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a polypropylene anti-corrosion pipe joint which comprises a first pipe, a second pipe and a joint pipe, wherein the first pipe and the second pipe are connected with the joint pipe in a welding mode; the first pipe is close to the second pipe, a groove is formed in the first pipe, a piston block is arranged in the groove, the piston block is connected with the groove in a sliding mode, and the piston block is connected with the joint pipe through a spring; a counterweight plate is arranged below the first pipe, the counterweight plate is connected with the piston block through an elastic rope, and water flow enters the first pipe and then drives the counterweight plate to move to the second pipe; after water flow enters from the first pipe, if the flow velocity of the water flow is small, the water pressure at the contact part of the first pipe and the second pipe is small, and the first pipe and the second pipe are not easy to fall off from the joint pipe; if the velocity of flow of rivers is fast, the water pressure of a pipe and No. two pipe contact departments is big, and the fast rivers of velocity of flow can drive the weight plate and remove to the inner wall of No. two pipes, through the gravity of weight plate, when preventing that the rivers from being too big, a pipe drops from the joint pipe, has increased the degree of tightness between a pipe and the joint pipe.

Preferably, the pressure which can be borne by the spring is larger than the total weight of the piston block and the weight plate; because the pressure that the spring can bear is greater than the gross weight power of piston piece and weight plate, so when the speed of intraductal rivers is less, the weight plate can not be like No. two pipe departments removal to influence the normal flow of intraductal rivers of No. one and No. two.

Preferably, the first pipe, the second pipe and the joint pipe are internally provided with pressure relief cavities, the contact part of the first pipe and the pressure relief cavity in the joint pipe is sealed by a first magnetic block and a second magnetic block, the magnetic poles of the surfaces, close to each other, of the first magnetic block and the second magnetic block are opposite, and the first magnetic block is fixedly connected with the joint pipe; a cavity is formed above the second magnetic block, the cavity is located in the connector pipe, the piston block is connected with the second magnetic block through a rigid rope, when the counterweight plate moves, the second magnetic block is separated from the first magnetic block, and the first pipe is communicated with a pressure relief cavity on the second pipe; when the water flow in the first pipe is excessive, the water flow can flow into the pressure relief cavity on the first pipe; along with the weight plate moves in the second pipe, the rigid rope can pull the second magnetic block to separate the first magnetic block from the second magnetic block, the first magnetic block is separated from the second magnetic block, the first pipe is communicated with the pressure relief cavity in the joint pipe, water flow in the pressure relief cavity on the first pipe can flow into the second pipe, the water pressure at the contact position of the first pipe and the second pipe is reduced, and the service life of the joint pipe is prolonged.

Preferably, the second pipe consists of a first layer and a second layer, the first layer is of a hollow structure, and the first layer is made of polypropylene materials; when the piston block moves, the gas in the compression groove enters the first layer; when the weight plate pulling piston block removed, the gas in the recess can be compressed to the piston block, and the gas of compressed can get into No. one in situ for No. one layer inflation can improve the laminating degree between No. two pipes and the joint pipe, prevents when rivers are too big, and No. two pipes drop from the joint pipe.

Preferably, the counterweight plates are formed by combining a plurality of layers of counterweight blocks, adjacent counterweight blocks are connected through tension springs, and when the counterweight plates move along with the water flow in the second pipe, the distance between the adjacent counterweight blocks is increased; when the weight plate moves in to No. two pipes, because the weight plate is formed by the combination of multilayer balancing weights, because rivers impact the weight plate, distance grow between the adjacent balancing weight to increased the area of contact of weight plate and rivers, further improved the laminating degree of a pipe and adapter tube, and reduced the volume of weight plate, reduced the influence that the weight plate flows rivers.

Preferably, the two sides of the balancing weight are fixedly connected with hollow rubber blocks, the hollow rubber blocks are used for preventing the inner wall of the second pipe from being damaged when the balancing weight is in contact with the inner wall of the second pipe, and gas discharged when the hollow rubber blocks are compressed enters the first layer; when the weight plate moves to No. two intraductal, because the irregular motion of intraductal rivers No. two, the balancing weight can strike the inner wall of No. two pipes, influence the removal of No. two pipes, through hollow block rubber of rigid coupling on the balancing weight, during the inner wall contact of hollow block rubber and No. two pipes, can protect the inner wall of No. two pipes, and simultaneously, receive the extrusion during the inner wall contact of hollow block rubber and No. two pipes, the extrusion combustion gas gets into the intraformational, further improve the laminating degree of No. two pipes and adapter tube.

After water flow enters from the first pipe, if the flow velocity of the water flow is small, the water pressure at the contact part of the first pipe and the second pipe is small, and the first pipe and the second pipe are not easy to fall off from the joint pipe; if the flow velocity of water flow is high, the water pressure at the contact part of the first pipe and the second pipe is high, the water flow with the high flow velocity can drive the weight plate to move towards the inner wall of the second pipe, the first pipe is prevented from falling off from the joint pipe through the gravity of the weight plate when the water flow is too high, the tightness between the first pipe and the joint pipe is increased, and the pressure born by the spring is greater than the total weight force of the piston block and the weight plate, so that when the speed of the water flow in the first pipe is low, the weight plate cannot move towards the second pipe, and the normal flow of the water flow in the first pipe and the second pipe is influenced; when the water flow in the first pipe is excessive, the water flow can flow into the pressure relief cavity on the first pipe; the rigid rope can pull the second magnetic block along with the movement of the counterweight plate into the second pipe, so that the first magnetic block is separated from the second magnetic block, the first pipe is communicated with the pressure relief cavity on the joint pipe after the first magnetic block is separated from the second magnetic block, water flow in the pressure relief cavity on the first pipe can flow into the second pipe, the water pressure at the contact part of the first pipe and the second pipe is reduced, and the service life of the joint pipe is prolonged; when the balance weight plate pulls the piston block to move, the piston block can compress gas in the groove, and the compressed gas can enter the first layer to expand the first layer, so that the fitting degree between the second pipe and the joint pipe can be improved, and the second pipe is prevented from falling off from the joint pipe when water flow is too large; when the counterweight plate moves into the second pipe, because the counterweight plate is formed by combining a plurality of layers of counterweight blocks, the distance between the adjacent counterweight blocks is increased due to the impact of water flow on the counterweight plate, so that the contact area between the counterweight plate and the water flow is increased, the joint degree of the first pipe and the joint pipe is further improved, the volume of the counterweight plate is reduced, and the influence of the counterweight plate on the flow of the water flow is reduced; when the weight plate moves to No. two intraductal, because the irregular motion of intraductal rivers No. two, the balancing weight can strike the inner wall of No. two pipes, influence the removal of No. two pipes, through hollow block rubber of rigid coupling on the balancing weight, during the inner wall contact of hollow block rubber and No. two pipes, can protect the inner wall of No. two pipes, and simultaneously, receive the extrusion during the inner wall contact of hollow block rubber and No. two pipes, the extrusion combustion gas gets into the intraformational, further improve the laminating degree of No. two pipes and adapter tube.

The invention has the following beneficial effects:

1. the polypropylene anti-corrosion pipe joint is simple in structure, and the balance weight plate is driven to move into the second pipe by utilizing the flow of water flow in the first pipe, so that the first pipe can be prevented from falling off from the joint pipe, and the tightness between the first pipe and the joint pipe is improved.

2. According to the polypropylene anti-corrosion pipe joint, the actions are consistent, the piston block is pulled to move when the counterweight plate moves, air can be supplied to the first layer in the second pipe, the attaching degree between the second pipe and the joint pipe is improved, and the second pipe is prevented from falling off from the joint pipe.

Drawings

The invention will be further explained with reference to the drawings.

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

FIG. 5 is a schematic representation of the operation of the present invention;

in the figure: the device comprises a first pipe 1, a groove 11, a piston block 12, a spring 13, a second pipe 2, a first layer 21, a second layer 22, a connector pipe 3, a counterweight plate 4, a counterweight block 41, a tension spring 42, a hollow rubber block 43, an elastic rope 5, a pressure relief cavity 6, a first magnetic block 61, a second magnetic block 62 and a rigid rope 63.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the polypropylene anticorrosive pipe joint of the present invention includes a first pipe 1, a second pipe 2 and a joint pipe 3, wherein the first pipe 1 and the second pipe 2 are connected with the joint pipe 3 in a welding manner; the first pipe 1 is close to the second pipe 2, a groove 11 is formed in the first pipe, a piston block 12 is arranged in the groove 11, the piston block 12 is connected with the groove 11 in a sliding mode, and the piston block 12 is connected with the joint pipe 3 through a spring 13; a counterweight plate 4 is arranged below the first pipe 1, the counterweight plate 4 is connected with the piston block 12 through an elastic rope 5, and water flow enters from the first pipe 1 and then drives the counterweight plate 4 to move towards the second pipe 2; after water flow enters from the first pipe 1, if the flow velocity of the water flow is small, the water pressure at the contact part of the first pipe 1 and the second pipe 2 is small, and the first pipe 1 and the second pipe 2 are not easy to fall off from the joint pipe 3; if the velocity of flow of rivers is fast, the water pressure of a tub 1 and No. 2 contact departments of pipe is big, and the fast rivers of velocity of flow can drive the inner wall removal of weight plate 4 to No. 2 pipe, through the gravity of weight plate 4, prevents that the rivers from too big time, and a pipe 1 drops from the joint pipe 3, has increased the degree of tightness between a tub 1 and the joint pipe 3.

As an embodiment of the present invention, the pressure that the spring 13 can bear is greater than the total gravity of the piston block 12 and the weight plate 4; because the pressure that spring 13 can bear is greater than the total gravity of piston piece 12 and weight plate 4, so when the speed of the rivers in a number 1 is less, weight plate 4 can not remove to number 2 pipe, so do not influence the normal flow of rivers in a number 1 pipe and number 2 pipe.

As a specific embodiment of the invention, pressure relief cavities 6 are respectively arranged in the first pipe 1, the second pipe 2 and the joint pipe 3, the contact part of the first pipe 1 and the pressure relief cavity 6 in the joint pipe 3 is sealed by a first magnetic block 61 and a second magnetic block 62, the magnetic poles of the surfaces, close to each other, of the first magnetic block 61 and the second magnetic block 62 are opposite, and the first magnetic block 61 is fixedly connected with the joint pipe 3; a cavity is formed above the second magnetic block 62, the cavity is positioned in the joint pipe 3, the piston block 12 is connected with the second magnetic block 62 through a rigid rope 63, when the counterweight plate 4 moves, the second magnetic block 62 is separated from the first magnetic block 61, and the pressure relief cavities 6 on the first pipe 1 and the second pipe 2 are communicated; when water in the first pipe 1 flows through a large amount, the water flow can flow into the pressure relief cavity 6 on the first pipe 1; along with the counterweight plate 4 removes to No. two pipe 2, rigidity rope 63 can stimulate No. two magnetic paths 62, makes a magnetic path 61 and No. two magnetic paths 62 separately, and a magnetic path 61 separates the back with No. two magnetic paths 62, and the pressure release chamber 6 intercommunication on a pipe 1 and the adapter tube 3, rivers in the pressure release chamber 6 on a pipe 1 can flow in No. two pipe 2, have reduced the water pressure of a pipe 1 and No. two pipe 2 contact department, have improved adapter tube 3's life.

As a specific embodiment of the present invention, the second tube 2 is composed of a first layer 21 and a second layer 22, the first layer 21 is a hollow structure, and the first layer 21 is made of polypropylene material; when the piston block 12 moves, the gas in the compression groove 11 enters the first layer 21; when 4 pulling piston blocks 12 at the weight plate remove, gas in piston blocks 12 can the compression recess 11, and compressed gas can get into No. one in the layer 21 for No. one layer 21 inflation can improve the laminating degree between No. two pipes 2 and the joint pipe 3, prevents when rivers are too big, and No. two pipes 2 drop from the joint pipe 3.

As a specific embodiment of the present invention, the weight plate 4 is formed by combining a plurality of layers of weight blocks 41, adjacent weight blocks 41 are connected by a tension spring 42, and when the weight plate 4 moves along with the water flow toward the second pipe 2, the distance between the adjacent weight blocks 41 increases; when the weight plate 4 moves in to No. two pipes 2, because the weight plate 4 is formed by the combination of multilayer balancing weight 41, because rivers to the impact of weight plate 4, the distance grow between the adjacent balancing weight 41 to increased the area of contact of weight plate 4 with rivers, further improved a pipe 1 and adapter tube 3's laminating degree, and reduced the volume of weight plate 4, reduced the influence that the weight plate 4 flows to rivers.

As a specific embodiment of the present invention, the two sides of the weight block 41 are fixedly connected with the hollow rubber blocks 43, the hollow rubber blocks 43 are used for preventing the inner wall of the second tube 2 from being damaged when the weight block 41 contacts the inner wall of the second tube 2, and the gas discharged when the hollow rubber blocks 43 are compressed enters the first layer 21; when moving in weight plate 4 to No. two pipes 2, because the irregular motion of rivers in No. two pipes 2, No. two pipe 2's inner wall may be strikeed to balancing weight 41, influence No. two pipe 2's removal, through hollow block rubber 43 of rigid coupling on balancing weight 41, during hollow block rubber 43 and No. two pipe 2's inner wall contact, can protect No. two pipe 2's inner wall, and simultaneously, receive the extrusion when hollow block rubber 43 and No. two pipe 2's inner wall contact, the extrusion combustion gas gets into No. one in the layer 21, further improve No. two pipe 2 and the laminating degree of joint pipe 3.

When the water-cooled type water heater works, after water flow enters from the first pipe 1, if the flow rate of the water flow is small, the water pressure at the contact part of the first pipe 1 and the second pipe 2 is small, and the first pipe 1 and the second pipe 2 are not easy to fall off from the joint pipe 3; if the flow rate of water flow is high, the water pressure at the contact part of the first pipe 1 and the second pipe 2 is high, the water flow with the high flow rate can drive the weight plate 4 to move towards the inner wall of the second pipe 2, the first pipe 1 is prevented from falling off from the joint pipe 3 through the gravity of the weight block 41 when the water flow is too high, the tightness between the first pipe 1 and the joint pipe 3 is increased, and the pressure born by the spring 13 is greater than the total gravity of the piston block 12 and the weight plate 4, so that when the speed of the water flow in the first pipe 1 is low, the weight plate 4 cannot move towards the second pipe 2, and the normal flow of the water flow in the first pipe 1 and the second pipe 2 is influenced; when water in the first pipe 1 flows through a large amount, the water flow can flow into the pressure relief cavity 6 on the first pipe 1; along with the movement of the counterweight plate 4 into the second pipe 2, the rigid rope 63 can pull the second magnetic block 62 to separate the first magnetic block 61 from the second magnetic block 62, after the first magnetic block 61 is separated from the second magnetic block 62, the first pipe 1 is communicated with the pressure relief cavity 6 on the joint pipe 3, water flow in the pressure relief cavity 6 on the first pipe 1 can flow into the second pipe 2, the water pressure at the contact position of the first pipe 1 and the second pipe 2 is reduced, and the service life of the joint pipe 3 is prolonged; when the weight plate 4 pulls the piston block 12 to move, the piston block 12 compresses gas in the groove 11, and the compressed gas enters the first layer 21 to expand the first layer 21, so that the fitting degree between the second pipe 2 and the joint pipe 3 can be improved, and the second pipe 2 is prevented from falling off from the joint pipe 3 when water flows too much; when the weight plate 4 moves in the second pipe 2, because the weight plate 4 is formed by combining a plurality of layers of weight blocks 41, the distance between the adjacent weight blocks 41 is increased due to the impact of water flow on the weight plate 4, so that the contact area between the weight plate 4 and the water flow is increased, the joint degree of the first pipe 1 and the joint pipe 3 is further improved, the volume of the weight plate 4 is reduced, and the influence of the weight plate 4 on the flow of the water flow is reduced; when moving in weight plate 4 to No. two pipes 2, because the irregular motion of rivers in No. two pipes 2, No. two pipe 2's inner wall may be strikeed to balancing weight 41, influence No. two pipe 2's removal, through hollow block rubber 43 of rigid coupling on balancing weight 41, during hollow block rubber 43 and No. two pipe 2's inner wall contact, can protect No. two pipe 2's inner wall, and simultaneously, receive the extrusion when hollow block rubber 43 and No. two pipe 2's inner wall contact, the extrusion combustion gas gets into No. one in the layer 21, further improve No. two pipe 2 and the laminating degree of joint pipe 3.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polypropylene anticorrosion pipe joint is characterized in that: the pipe joint comprises a first pipe (1), a second pipe (2) and a joint pipe (3), wherein the first pipe (1) and the second pipe (2) are connected with the joint pipe (3) in a welding mode; the first pipe (1) is close to the second pipe (2), a groove (11) is formed in the first pipe, a piston block (12) is arranged in the groove (11), the piston block (12) is connected with the groove (11) in a sliding mode, and the piston block (12) is connected with the joint pipe (3) through a spring (13); a counterweight plate (4) is arranged below the first pipe (1), the counterweight plate (4) is connected with the piston block (12) through an elastic rope (5), and water flow enters from the first pipe (1) and then drives the counterweight plate (4) to move towards the second pipe (2).

2. The polypropylene corrosion-resistant pipe joint according to claim 1, wherein: the pressure that spring (13) can bear is greater than the total gravity of piston piece (12) and weight plate (4).

3. The polypropylene corrosion-resistant pipe joint according to claim 1, wherein: pressure relief cavities (6) are formed in the first pipe (1), the second pipe (2) and the joint pipe (3), the contact position of the pressure relief cavities (6) in the first pipe (1) and the joint pipe (3) is sealed through a first magnetic block (61) and a second magnetic block (62), the magnetic poles of the surfaces, close to each other, of the first magnetic block (61) and the second magnetic block (62) are opposite, and the first magnetic block (61) is fixedly connected with the joint pipe (3); a cavity is formed above the second magnetic block (62), the cavity is located in the connector pipe (3), the piston block (12) is connected with the second magnetic block (62) through a rigid rope (63), when the counterweight plate (4) moves, the second magnetic block (62) is separated from the first magnetic block (61), and the pressure relief cavities (6) in the first pipe (1) and the second pipe (2) are communicated.

4. The polypropylene corrosion-resistant pipe joint according to claim 3, wherein: the second pipe (2) is composed of a first layer (21) and a second layer (22), the first layer (21) is of a hollow structure, and the first layer (21) is made of polypropylene materials; when the piston block (12) moves, gas in the compression groove (11) enters the first layer (21).

5. The polypropylene corrosion-resistant pipe joint according to claim 2, wherein: the counterweight plate (4) is formed by combining a plurality of layers of counterweight blocks (41), the adjacent counterweight blocks (41) are connected through tension springs (42), and when the counterweight plate (4) moves along with the water flow direction in the second pipe (2), the distance between the adjacent counterweight blocks (41) is increased.

6. The polypropylene corrosion-resistant pipe joint according to claim 5, wherein: the equal rigid coupling in both sides of balancing weight (41) has hollow block rubber (43), and hollow block rubber (43) are used for making the balancing weight (41) do not harm the inner wall of No. two pipes (2) when No. two pipe (2) inner wall contacts, and the combustion gas gets into No. one in layer (21) when hollow block rubber (43) compress.