Combined one-way valve

Abstract

The utility model discloses a combined one-way valve which comprises a valve assembly, the valve assembly comprises a combined one-way valve body, an installation pipeline, fixing shells and a sealing piece, the installation pipeline is fixed to one side of the combined one-way valve body, the fixing shells are fixed to the top and the bottom of the installation pipeline, and the sealing piece is fixed to the top and the bottom of the installation pipeline. The sealing piece is mounted on one side of the interior of the mounting pipeline; and the auxiliary assembly is arranged in the mounting pipeline and comprises an external pipeline, a limiting shell, a mounting piece and a first clamping plate. The valve assembly has the advantages that the installation pipeline and the external pipeline in the valve assembly are matched with the sealing piece, so that connection and installation are tighter, the leakage problem is reduced, the external pipeline and the installation pipeline are conveniently and rapidly clamped and fixed through the installation piece in the auxiliary assembly, and therefore the installation convenience is improved, and the service life of the valve assembly is prolonged. The defects of a traditional pipeline connecting mode are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of combined check valve, especially a combined check valve. BACKGROUND

[0002] The combined check valve is a valve integrating multiple functions, used for controlling the one-way flow of fluid in a pipeline. It combines the functions of multiple check valves and can simultaneously control flow, pressure, temperature, etc., and is widely used in hydraulic, pneumatic, etc. systems. The combined check valve modularly combines multiple valve bodies through unique design, simplifying the system structure, reducing space occupation, and improving the reliability and efficiency of the system.

[0003] In the existing installation and use process of the combined check valve, for the installation of the pipeline, the traditional installation method is generally through threaded connection or flange connection, which needs to be tightened and calibrated multiple times during installation, which may increase the installation time and workload, and the installation environment may require a large installation space, especially in the case of compact pipeline layout or limited space, which may limit the convenience of installation and maintenance, and the sealing ring on the pipeline is easy to be damaged during multiple disassembly and reinstallation, which may affect the sealing between the pipeline and the valve, increasing the risk of leakage. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0005] In view of the above and / or existing problems in the combined check valve, the present utility model is proposed.

[0006] Therefore, the problem to be solved by the present utility model is that the connection between the prior art combined check valve and the pipeline is relatively complicated.

[0007] To solve the above technical problems, the present utility model provides the following technical scheme: a combined check valve, comprising

[0008] a valve assembly, the valve assembly comprising a combined check valve body, an installation pipeline, a fixed shell and a sealing element, the installation pipeline being fixed to one side of the combined check valve body, the fixed shell being fixed to the top and bottom of the installation pipeline, and the sealing element being installed on one side inside the installation pipeline; and

[0009] The auxiliary assembly is arranged inside the mounting pipe, comprising an external connecting pipe, a limiting shell, a mounting piece and a first clamping plate, the external connecting pipe is connected to one side of the mounting pipe, the limiting shell is fixed to one side inside the mounting pipe, the mounting piece is arranged inside the fixed shell, and the first clamping plate is fixed to the top and bottom of the external connecting pipe.

[0010] As a preferred scheme of the combined check valve, the auxiliary assembly further comprises a filter plate and a mounting plate, the filter plate is connected to the inside of the limiting shell, and the mounting plate is fixed to the front and back of the filter plate and is mounted with the limiting shell through screws.

[0011] As a preferred scheme of the combined check valve, the auxiliary assembly further comprises a handle, the handle is fixed to the top of the filter plate, and a notch for the filter plate is arranged in the inside of the limiting shell.

[0012] As a preferred scheme of the combined check valve, the auxiliary assembly further comprises a reinforcing block, the reinforcing block is fixed to one side of the first clamping plate and is fixedly connected to one side of the external connecting pipe.

[0013] As a preferred scheme of the combined check valve, the valve assembly further comprises a sealing groove and a sealing strip, the sealing groove is arranged on one side of the mounting pipe, the sealing strip is fixed to the surface of the external connecting pipe, and the surface of the sealing strip is attached to the inside of the sealing groove.

[0014] As a preferred scheme of the combined check valve, the sealing member comprises a bidirectional screw rod, a rotating disc, an internally threaded plate and a pressing ring, the bidirectional screw rod is rotatably connected to the inside of the mounting pipe through a bearing, the top of the bidirectional screw rod penetrates to the outside of the mounting pipe and is fixedly connected to the rotating disc, the inside of two internally threaded plates is threadedly connected with the bidirectional screw rod, and the pressing ring is fixed to one side of the internally threaded plate.

[0015] As a preferred scheme of the combined check valve, the sealing member further comprises a rubber ring, the rubber ring is fixed to one side of the pressing ring, and the number of the rubber ring is two and is symmetrically arranged.

[0016] As a preferred scheme of the combined check valve, the sealing member further comprises a sliding rod and a sliding plate, the sliding rod is fixed to the front and back of the inside of the mounting pipe, the surface of the sliding plate is slidably connected with the sliding rod, and one side of the sliding plate is fixedly connected with the pressing ring.

[0017] As a preferred scheme of the combined check valve, the mounting member comprises a spring, a toothed plate and a pull rod, the spring is fixed to one side of the inner cavity of the fixed shell, and the other side is fixedly connected with the toothed plate, the pull rod is fixed to one side of the toothed plate, and the other side penetrates to the outside of the fixed shell.

[0018] As a preferred scheme of the combined check valve, the sealing member further comprises a limiting rod and a limiting ring, the limiting rod is fixed to the front sides of one side of the toothed plate, and one end penetrates to the outside of the fixed shell, the limiting ring is sleeved on the surface of the pull rod, and one side is fixedly connected with the fixed shell.

[0019] The utility model discloses beneficial effects are: through the installation pipeline and the external connecting pipeline in valve assembly, cooperate sealing member can make the connection installation more closely, reduce the problem of leakage, through the mounting member in auxiliary assembly, then the external connecting pipeline and installation pipeline between quick clamping fixed are facilitated, thereby improve the convenience of installation, solve the drawback of traditional pipeline connection mode. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. Wherein:

[0021] Figure 1 It is the overall structure diagram of combined check valve.

[0022] Figure 2 It is the overall structure diagram of combined check valve.

[0023] Figure 3 It is the sealing member structure diagram of combined check valve.

[0024] Figure 4 It is the mounting member structure diagram of combined check valve.

[0025] The figure label: 100, valve assembly; 101, combined check valve body; 102, mounting pipe; 103, fixed shell; 104, sealing element; 105, sealing groove; 106, sealing strip; 104a, bidirectional screw rod; 104b, rotating disc; 104c, internally threaded plate; 104d, pressing ring; 104e, rubber ring; 104f, sliding rod; 104g, sliding plate; 200, auxiliary assembly; 201, external pipe; 202, limiting shell; 203, mounting element; 204, first clamping plate; 205, filter plate; 206, mounting plate; 207, handle; 208, reinforcing block; 203a, spring; 203b, toothed plate; 203c, pull rod; 203d, limiting rod; 203e, limiting ring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0028] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0029] Embodiment 1

[0030] Reference Figures 1-4 For the first embodiment of the present application, the embodiment provides a combined check valve, the combined check valve includes a valve assembly 100 and an auxiliary assembly 200, through the mounting pipe 102 in the valve assembly 100 and the external pipe 201, cooperating with the sealing element 104 can make the connection more closely during installation, reduce the problem of leakage, through the mounting element 203 in the auxiliary assembly 200, it is convenient to quickly clamp and fix between the external pipe 201 and the mounting pipe 102, thereby improving the convenience of installation, solving the drawbacks of the traditional pipeline connection mode.

[0031] Valve assembly 100, valve assembly 100 including combined check valve body 101, installation pipeline 102, fixed shell 103 and sealing member 104, installation pipeline 102 is fixed to one side of combined check valve body 101, fixed shell 103 is fixed to the top and bottom of installation pipeline 102, sealing member 104 is installed inside one side of installation pipeline 102.

[0032] By installing pipeline 102 installed on one side of the combined check valve body 101, it is convenient to cooperate with the external pipeline 201 connection fixed, through the fixed shell 103 is convenient for the installation of the installation piece 203, through the sealing member 104 can improve the sealing between the installation pipeline 102 and the external pipeline 201, reduce the possibility of pipeline leakage.

[0033] Auxiliary assembly 200, auxiliary assembly 200 is arranged in the inside of installation pipeline 102, including external pipeline 201, limiting shell 202, installation piece 203 and first clamping plate 204, external pipeline 201 is inserted into one side of installation pipeline 102, limiting shell 202 is fixed to one side of the inside of installation pipeline 102, installation piece 203 is arranged in the inside of fixed shell 103, first clamping plate 204 is fixed to the top and bottom of external pipeline 201.

[0034] Through the external pipeline 201 is convenient for the installation of the installation pipeline 102 between the fixed, through the limiting shell 202 is convenient for the installation of the filter plate 205 limiting, through the installation piece 203 cooperation first clamping plate 204 is convenient for the external pipeline 201 and the installation pipeline 102 between the quick clamping fixed, thereby improving the convenience of pipeline connection.

[0035] Example 2

[0036] Referring to Figure 3 And Figure 4 , the second embodiment of the present application, this embodiment is based on the last embodiment.

[0037] Specifically, the auxiliary assembly 200 further comprises a filter plate 205 and an installation plate 206, the filter plate 205 is inserted into the inside of the limiting shell 202, the installation plate 206 is fixed to the front and back of the filter plate 205 and is installed through the screw and the limiting shell 202.

[0038] Through the filter plate 205 is inserted into the inside of the limiting shell 202, the impurities in the conveying water can be filtered, and the installation plate 206 is convenient for the quick assembly and disassembly work between the filter plate 205 and the limiting shell 202.

[0039] Specifically, the auxiliary assembly 200 further comprises a handle 207, the handle 207 is fixed to the top of the filter plate 205, the limiting shell 202 is provided with a slot for cooperating with the filter plate 205.

[0040] The handle 207 can provide a more convenient way for the staff to take out the filter plate 205 for maintenance.

[0041] Specifically, the auxiliary assembly 200 further comprises a reinforcing block 208 fixed to one side of the first clamping plate 204 and fixedly connected to the external pipeline 201.

[0042] By fixing the reinforcing block 208 between the external pipeline 201 and the first clamping plate 204, the stability between the external pipeline 201 and the first clamping plate 204 can be improved, so that the first clamping plate 204 is more stable when the external pipeline 201 is fixed by the fitting mounting 203.

[0043] Specifically, the valve assembly 100 further comprises a sealing groove 105 and a sealing strip 106, the sealing groove 105 is opened on one side of the mounting pipeline 102, and the sealing strip 106 is fixed to the surface of the external pipeline 201, and the surface of the sealing strip 106 is in close contact with the inside of the sealing groove 105.

[0044] By opening the sealing groove 105 on one side of the mounting pipeline 102, the sealing strip 106 is clamped to the inside of the sealing groove 105 when the external pipeline 201 is assembled, achieving double sealing, thereby reducing the possibility of water leakage.

[0045] Specifically, the sealing member 104 comprises a bidirectional screw rod 104a, a rotating disc 104b, an internally threaded plate 104c, and a pressing ring 104d, the bidirectional screw rod 104a is rotatably connected to the inside of the mounting pipeline 102 through a bearing, and the top penetrates to the outside of the mounting pipeline 102 and is fixedly connected with the rotating disc 104b, the inside of the two internally threaded plates 104c is threadedly connected with the bidirectional screw rod 104a, and the pressing ring 104d is fixed to one side of the internally threaded plate 104c.

[0046] By rotating the rotating disc 104b, the bidirectional screw rod 104a can be rotated, and when the bidirectional screw rod 104a is rotated, the two internally threaded plates 104c will drive the pressing ring 104d to move in opposite directions, so as to press on the inner wall of the external pipeline 201, making the external pipeline 201 and the mounting pipeline 102 more closely.

[0047] Specifically, the sealing member 104 further comprises a rubber ring 104e, the rubber ring 104e is fixed to one side of the pressing ring 104d, and the number is two and symmetrically arranged.

[0048] By symmetrically fixing the rubber ring 104e on one side of the pressing ring 104d, the pressing strength between the pressing ring 104d and the external pipeline 201 can be improved.

[0049] Example 3

[0050] Reference Figure 3 andFigure 4 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0051] Specifically, the sealing member 104 further comprises a sliding rod 104f and a sliding plate 104g, the sliding rod 104f is fixed to the front and back sides inside the mounting pipe 102, the surface of the sliding plate 104g is in sliding connection with the sliding rod 104f, and one side of the sliding plate 104g is fixedly connected with the pressing ring 104d.

[0052] The sliding rod 104f is fixed inside the mounting pipe 102 and slides with the sliding plate 104g, so that the sliding plate 104g is limited to move on the surface of the sliding rod 104f during the movement of the pressing ring 104d, thereby limiting the stroke of the pressing ring 104d and ensuring the stability of the movement of the pressing ring 104d.

[0053] Specifically, the mounting member 203 comprises a spring 203a, a toothed plate 203b and a pull rod 203c, the spring 203a is fixed to one side of the inner cavity of the fixed shell 103 and is fixedly connected with the toothed plate 203b on the other side, and the pull rod 203c is fixed to one side of the toothed plate 203b and penetrates to the outside of the fixed shell 103 on the other side.

[0054] When the user needs to disassemble the external pipe 201, the pull rod 203c can be pulled to drive the toothed plate 203b to rise inside the fixed shell 103 and simultaneously press the spring 203a, and then the external pipe 201 can be pulled out to realize quick disassembly, and the external pipe 201 can be quickly installed in the same direction.

[0055] Specifically, the sealing member 104 further comprises a limiting rod 203d and a limiting ring 203e, the limiting rod 203d is fixed to the front sides of one side of the toothed plate 203b and penetrates to the outside of the fixed shell 103 at one end, and the limiting ring 203e is sleeved on the surface of the pull rod 203c and is fixedly connected with the fixed shell 103 on one side.

[0056] The limiting rod 203d is fixed to one side of the toothed plate 203b, and the surface of the limiting rod 203d is in sliding connection with the inside of the fixed shell 103, so that the limiting rod 203d forces the toothed plate 203b to move up and down inside the fixed shell 103 when the toothed plate 203b moves, thereby improving the movement stability, and the limiting ring 203e is fixed to one side of the fixed shell 103 and is in sliding connection with the inside of the limiting ring 203e, so that the pull rod 203c is limited to move up and down, thereby ensuring the movement stability.

[0057] In use, first, the user needs to install the external pipe 201, and the external pipe 201 drives the first clamping plate 204 to be aligned with the insertion of the fixed shell 103, at this time the sealing strip 106 on the external pipe 201 will be inserted into the inside of the sealing groove 105 for sealing, and the mounting member 203 inside the fixed shell 103 will be in contact with the inclined surface of the first clamping plate 204 through the tooth plate 203b, until the external pipe 201 is completely inserted into the inside of the installation pipe 102, the tooth plate 203b will limit and fix the teeth on the first clamping plate 204 by relying on the elasticity of the spring 203a, so as to complete the installation work, then the user rotates the rotating disc 104b to make the bidirectional screw rod 104a rotate, when the bidirectional screw rod 104a rotates, the two internal threaded plates 104c will drive the abutting ring 104d to move in opposite directions, when the abutting ring 104d moves, it will drive the sliding plate 104g to limit and move on the surface of the sliding rod 104f, so as to limit the stroke of the abutting ring 104d and ensure the stability of the abutting ring 104d when moving, then the abutting ring 104d will drive the rubber ring 104e to abut against the inner wall of the external pipe 201, so that the external pipe 201 and the installation pipe 102 are more closely fitted, and the sealing performance of the pipe connection is ensured.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A combined check valve, characterized by: The utility model relates to a valve assembly (100) and auxiliary assembly (200), the valve assembly (100) includes combined check valve body (101), installation pipeline (102), fixed shell (103) and seal (104), installation pipeline (102) is fixed to one side of combined check valve body (101), fixed shell (103) is fixed to the top and bottom of installation pipeline (102), and seal (104) is installed to one side inside installation pipeline (102), and the auxiliary assembly (200) is arranged inside installation pipeline (102) and includes external connection pipeline (201), limiting shell (202), mounting (203) and first clamping plate (204), external connection pipeline (201) is inserted to one side of installation pipeline (102), limiting shell (202) is fixed to one side inside installation pipeline (102), mounting (203) is arranged inside fixed shell (103), and first clamping plate (204) is fixed to the top and bottom of external connection pipeline (201). The auxiliary assembly (200) further includes filter plate (205) and mounting plate (206), the filter plate (205) is inserted into the inside of the limiting shell (202), and the mounting plate (206) is fixed to the front and back of the filter plate (205) and is installed with the limiting shell (202) through screws. The auxiliary assembly (200) further includes handle (207), the handle (207) is fixed to the top of the filter plate (205), and the inside of the limiting shell (202) is provided with a notch matched with the filter plate (205).

2. The combined check valve of claim 1, wherein: The auxiliary assembly (200) further includes reinforcing block (208), the reinforcing block (208) is fixed to one side of the first clamping plate (204), and one side is fixedly connected with the external connection pipeline (201).

3. The combination check valve of claim 2 wherein: The valve assembly (100) further includes sealing groove (105) and sealing strip (106), the sealing groove (105) is arranged on one side of the installation pipeline (102), and the sealing strip (106) is fixed to the surface of the external connection pipeline (201), and the surface of the sealing strip (106) is attached to the inside of the sealing groove (105).

4. The combination check valve of claim 1 wherein: The sealing piece (104) includes bidirectional screw rod (104a), rotating disc (104b), internal thread plate (104c) and pressing ring (104d), the bidirectional screw rod (104a) is rotatably connected to the inside of the installation pipeline (102) through a bearing, and the top penetrates to the outside of the installation pipeline (102) and is fixedly connected with the rotating disc (104b), the inside of the two internal thread plates (104c) is threadedly connected with the bidirectional screw rod (104a), and the pressing ring (104d) is fixed to one side of the internal thread plate (104c).

5. The combination check valve of claim 4 wherein: The sealing piece (104) further includes rubber ring (104e), the rubber ring (104e) is fixed to one side of the pressing ring (104d), and the number is two and is symmetrically arranged.

6. The combination check valve of claim 1, wherein: ​ 7. The combination check valve of claim 6 wherein: ​ 8. The combined check valve of claim 7, wherein: The sealing piece (104) further comprises slide rods (104f) fixed to the front and back sides inside the mounting pipe (102), and a slide plate (104g) with a surface in sliding connection with the slide rods (104f), one side of the slide plate (104g) being fixedly connected with the pressing ring (104d).

9. The combination check valve of claim 1, wherein: The mounting piece (203) comprises a spring (203a) fixed to one side of the inner cavity of the fixed shell (103) and fixedly connected with a tooth plate (203b) on the other side, and a pull rod (203c) fixed to one side of the tooth plate (203b) and penetrating through to the outside of the fixed shell (103) on the other side.

10. The combination check valve of claim 9, wherein: The sealing piece (104) further comprises limiting rods (203d) fixed to the front and back sides of one side of the tooth plate (203b) and penetrating through to the outside of the fixed shell (103) on one end, and a limiting ring (203e) sleeved on the surface of the pull rod (203c) and fixedly connected with the fixed shell (103) on one side.

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