Pipeline switching valve assembly

Abstract

The utility model provides a pipeline switching valve assembly which aims at solving the problems that on-off control of a traditional three-way valve needs manual adjustment, and automation is lacked. The three-way valve block mainly comprises a three-way valve block body, a main pipeline, a first branch pipeline and a second branch pipeline are inserted into a three-way valve block body, an adjusting assembly used for switching the on-off state of the main pipeline is arranged in the three-way valve block, and the tail end of the adjusting assembly is connected with a driving piece. Compared with the prior art, the valve body is designed to be the square valve block, the adjusting assembly and the driving piece can be integrated in the valve block, the appearance structure is more integrated and simpler, and meanwhile the square block-shaped design enables the valve to have a more flexible installation mode. The adjusting assembly composed of the outer lining and the inner sliding block is arranged in the valve, the driving piece is used for driving the inner sliding block to move linearly, so that switching of pipelines is achieved, and the purpose of automation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially a pipeline switching valve door subassembly. BACKGROUND

[0002] In the field of material conveying, pneumatic, hydraulic and the like, the flow direction of fluid in the pipeline system needs to be changed, that is, the fluid needs to be switched between different pipelines, and a three-way valve needs to be used. The pipeline adjustment and switching of the traditional three-way valve subassembly still adopts manual adjustment, which cannot meet the use demand under the current background of automation, and therefore it is urgent to propose a valve subassembly capable of being automatically adjusted and controlled. SUMMARY

[0003] The present application aims at the above-mentioned defects in the prior art, and provides a pipeline switching valve door subassembly, which is internally provided with an adjusting subassembly composed of an outer bushing and an inner sliding block. The inner sliding block is driven by a driving member to linearly displace, so as to realize the switching of the pipeline and achieve the purpose of automation.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A pipeline switching valve door subassembly comprises a three-way valve block, a main pipeline, a first branch pipeline and a second branch pipeline are respectively inserted into the three-way valve block, an adjusting subassembly for switching the on-off state of the main pipeline is arranged in the three-way valve block, and a driving member is connected to the tail end of the adjusting subassembly.

[0006] Further, the adjusting subassembly comprises an outer bushing penetrating through the inside of the three-way valve block, an inner sliding block is slidably arranged in the outer bushing, wall holes corresponding to the main pipeline, the first branch pipeline and the second branch pipeline are arranged on the circumference of the outer bushing, a first reversing hole for connecting the main pipeline and the first branch pipeline is formed in the inner sliding block along the axial direction, and a second reversing hole for connecting the main pipeline and the second branch pipeline is also formed in the inner sliding block.

[0007] Further, a screw rod is formed on the side shaft of the inner sliding block, the driving member is a pneumatic cylinder, the pneumatic cylinder body is fixed to one side of the three-way valve block through a flange plate, and the driving end of the pneumatic cylinder is threadedly connected with the screw rod.

[0008] Further, a threaded hole is formed on the circumference of the outer bushing, and the three-way valve block is connected with the outer bushing integrally through bolts.

[0009] Further, an internal thread is formed at the connection position of the three-way valve block and the pipeline, and a sealing ring is further arranged at the threaded connection position of the main pipeline, the first branch pipeline and the second branch pipeline and the three-way valve block.

[0010] Further, the outer bush is provided with a limiting block embedded in the end of the three-way valve block, and flexible gaskets are arranged between the limiting block and the inner sliding block.

[0011] Further, the inner sliding block is further provided with a key groove, and the lower part of the bolt is a smooth cylinder which is arranged in the key groove.

[0012] The pipe switching valve assembly has the advantages that the valve body is designed as a square valve block, the adjusting assembly and the driving member can be integrated in the valve block, the appearance structure is more integrated and simple, and the square block design makes the valve block have a more flexible installation mode.

[0013] Compared with the prior art, the pipe switching valve assembly has the advantages that the valve body is designed as a square valve block, the adjusting assembly and the driving member can be integrated in the valve block, the appearance structure is more integrated and simple, and the square block design makes the valve block have a more flexible installation mode. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic view of the utility model;

[0015] Figure 2 It is an exploded view; Figure 1

[0016] Figure 3 It is an exploded view of the adjusting assembly in the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic view of the inner sliding block in the utility model.

[0018] Wherein: 1, three-way valve block; 2, main pipeline; 3, first branch pipeline; 4, second branch pipeline;

[0019] 5, adjusting assembly; 51, outer bush; 52, inner sliding block; 53, wall hole; 54, first reversing hole; 55, second reversing hole; 56, screw rod; 57, threaded hole;

[0020] 6, driving member; 7, flange plate; 8, bolt; 9, sealing ring; 10, limiting block; 11, flexible gasket. DETAILED DESCRIPTION

[0021] The specific implementation manner of the utility model will be described below in combination with the drawings.

[0022] The utility model provides a kind of pipe switching valve assembly, to solve the problem that the on-off control of traditional three-way valve needs manual adjustment, lack of automation.

[0023] ​Specifically, the utility model mainly includes three -way valve block 1, three -way valve block 1 body is inserted with total pipeline 2, first branch pipeline 3 and second branch pipeline 4 respectively, the inside of three -way valve block 1 is provided with the adjusting assembly 5 for switching the on-off state of total pipeline 2, the end of adjusting assembly 5 is connected with driving part 6.

[0024] Through the above technical scheme, the medium for flowing gas, liquid or solid-liquid mixture in each pipeline can be switched when adjusting assembly 5 acts, so that total pipeline 2 is communicated with one of branch pipelines, thereby achieving the purpose of pipeline reversing, and the action of adjusting assembly 5 is based on linear slider adjustment, the slider is connected with driving part 6, so that the linear stroke of driving part 6 is converted into the linear stroke of the slider under external control, finally achieving the purpose of automatic pipeline switching adjustment.

[0025] In some embodiments, adjusting assembly 5 includes an outer sleeve 51 penetrating the inside of three-way valve block 1, an inner slider 52 is slidingly arranged in the outer sleeve 51, the circumference of the outer sleeve 51 is provided with a corresponding wall hole 53 for communication with total pipeline 2, first branch pipeline 3 and second branch pipeline 4, the inner slider 52 is provided with a first reversing hole 54 for communicating total pipeline 2 and first branch pipeline 3 along its axial direction, and a second reversing hole 55 for communicating total pipeline 2 and second branch pipeline 4.

[0026] Through the above technical scheme, the inner sleeve 51 is fixed in the inside of the three-way valve block 1 and at the intersection of each pipeline, the outer sleeve 51 body is in communication with each pipeline and the relative position of the outer sleeve 51 is immovable; the inner slider 52 is slidingly arranged in the outer sleeve 51 in a columnar shape, and the inner slider 52 can switch the on-off of the first reversing hole 54 and the second reversing hole 55 with the corresponding pipeline by sliding, thereby realizing the switching of the pipeline.

[0027] In some embodiments, a screw rod 56 is formed on one side of the inner slider 52, the driving part 6 is a gas cylinder, the gas cylinder body is fixed to one side of the three-way valve block 1 through a flange plate 7, and the driving end of the gas cylinder is threadedly connected with the screw rod 56.

[0028] Through the above technical scheme, the gas cylinder body is fixed with the three-way valve block 1, and the driving end thereof is connected with the inner slider 52 integrally, so that the external control of the gas cylinder is used to replace manual adjustment, thereby achieving the purpose of automatic control of the slider movement.

[0029] In some embodiments, a threaded hole 57 is formed on the circumference of the outer sleeve 51, and the three-way valve block 1 is connected with the outer sleeve 51 integrally through a bolt 8. Through the technical scheme, the relative position of the outer sleeve 51 is fixed, and the pipeline interface overlap is avoided.

[0030] In some embodiments, the three-way valve block 1 is provided with internal threads at the connection with the pipelines, and the total pipeline 2, the first branch pipeline 3 and the second branch pipeline 4 are further provided with sealing rings 9 at the threaded connections with the three-way valve block 1.

[0031] Through the above technical solution, the sealing ring 9 is arranged to ensure the sealing of the pipelines.

[0032] In some embodiments, the outer sleeve 51 is further provided with a limiting block 10 embedded in the end of the three-way valve block 1 on the side away from the driving member 6, and a flexible gasket 11 is further arranged between the limiting block 10 and the inner sliding block 52.

[0033] Through the above technical solution, the limiting block 10 is arranged at the end of the stroke of the inner sliding block 52 and is embedded and fixed at the end of the three-way valve block 1, so as to ensure that the working stroke of the inner sliding block 52 does not exceed the safe range, and the flexible gasket 11 is arranged to improve the rigid impact after the limiting block 10 abuts against the inner sliding block 52.

[0034] It should be noted that the inner sliding block 52 is further provided with a key groove in the embodiment, and the lower part of the bolt 8 is a smooth cylinder which is arranged in the axial direction of the key groove, that is, the smooth cylinder limits the rotation of the inner sliding block 52 in the circumferential direction, and when the inner sliding block 52 extends and retracts in the axial direction, the lower part of the bolt 8 is arranged in the key groove in a sliding manner, so as to achieve the purpose of circumferential limiting.

[0035] The working principle of the utility model is as follows: when in use, the utility model is installed on equipment requiring pipeline switching, such as material conveying equipment, hydraulic equipment or pneumatic equipment, and the specific medium and application scene are not limited here. Specifically, the three pipelines of the three-way valve block 1 are connected in place, for example, the total pipeline 2 is connected to the liquid inlet end, the first branch pipeline 3 is connected to the discharge end A, the second branch pipeline 4 is connected to the discharge end B, and the driving member 6 (cylinder) acts under the control command.

[0036] When the driving end extends, it is switched to the position of the first reversing hole 54 in the axial direction, at this time, the first branch pipeline 3 is communicated with the total pipeline 2, and the second branch pipeline 4 is disconnected.

[0037] When the driving end retracts, it is switched to the position of the second reversing hole 55 in the axial direction, at this time, the second branch pipeline 4 is communicated with the total pipeline 2, and the first branch pipeline 3 is disconnected.

[0038] The above description is an explanation of the utility model, not a limitation of the utility model, the scope defined by the utility model is referred to the claims, and any form of modification within the protection scope of the utility model can be made.

Claims

1. A pipeline switching valve assembly, characterized in that: The utility model provides a three -way valve block (1), the main line (2), first branch line (3) and second branch line (4) are inserted respectively on the body of three -way valve block (1), the inside of three -way valve block (1) is provided with the adjusting assembly (5) for switching the on-off state of main line (2), the tail end of adjusting assembly (5) is connected with driving part (6).

2. A valve manifold assembly of claim 1, wherein: The adjusting assembly (5) includes an outer sleeve (51) that extends through the interior of the three-way valve block (1), an inner sliding block (52) is slidably disposed within the outer sleeve (51), and a wall hole (53) is provided on the circumference of the outer sleeve (51) and corresponds to the main line (2), the first branch line (3), and the second branch line (4). The inner sliding block (52) has a first reversing hole (54) that is formed along its axial direction and is used to connect the main line (2) and the first branch line (3), and a second reversing hole (55) that is formed along its axial direction and is used to connect the main line (2) and the second branch line (4).

3. A valve manifold assembly of claim 2, wherein: A screw rod (56) is formed on one side of the inner sliding block (52), the driving part (6) is a cylinder, the cylinder body is fixed to one side of the three-way valve block (1) through a flange plate (7), and the driving end of the cylinder is threadedly connected with the screw rod (56).

4. A valve manifold assembly of claim 2, wherein: Threaded holes (57) are formed on the circumference of the outer sleeve (51), and the three-way valve block (1) is connected with the outer sleeve (51) through bolts (8).

5. A valve manifold assembly of claim 1 wherein: Internal threads are formed at the connection between the three-way valve block (1) and the pipelines, and sealing rings (9) are further provided at the threaded connections between the main line (2), the first branch line (3), the second branch line (4), and the three-way valve block (1).

6. A valve manifold assembly of claim 2, wherein: A limiting block (10) is further provided on the end of the three-way valve block (1) and is embedded in the outer sleeve (51) away from the driving part (6), and a flexible gasket (11) is further provided between the limiting block (10) and the inner sliding block (52).

7. A valve manifold assembly of claim 4 wherein: A key groove is further provided on the inner sliding block (52), and the lower part of the bolt (8) is a smooth cylinder that is limitingly arranged in the key groove.

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