Disk valve convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of disc valves, and discloses a disc valve convenient to disassemble and assemble, which comprises a valve body, an input port is arranged on one side of the valve body, an output port I is arranged on the other side of the input port, output ports II are arranged at the top end and the bottom end of the valve body, blocking heads are connected inside the output ports II through fixing assemblies, and the blocking heads are connected with the valve body through fixing assemblies. A rubber ring is arranged on the outer wall of the bottom end of the blocking head, a rotating shaft is rotationally connected into the valve body, a control assembly is arranged at one end of the rotating shaft, a pull rod is fixedly connected to the other end of the rotating shaft, and the pull rod is connected with the valve body through a limiting assembly. The fixing assembly comprises a screw hole formed in the outer wall of the second output port, and a limiting rod is arranged in the screw hole. According to the disc valve, the use of bolts and nuts can be reduced to close and open the output port II, so that the steps of opening or closing the flow path are greatly reduced, the structure is more convenient to disassemble and assemble, and the installation efficiency of the disc valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disc valves, in particular to a disc valve which is convenient for disassembly and assembly. Background Art

[0002] Disk valve is a commonly used control valve, its design is based on one or more elastic diaphragms to control the flow of media. They are usually used in applications that require precise control of flow, such as chemical industry, pharmaceutical industry, water treatment and other fields.

[0003] After searching, the stroke-hardened wear-resistant disc valve with announcement number CN210770339U includes: a left valve body, a middle valve body, a right valve body and a valve stem assembly. The middle valve body is connected to the left valve body and the right valve body respectively through fasteners. The left valve body and the right valve body are provided with valve stem holes. The valve stem assembly is connected to the left valve body and the right valve body through the valve stem holes to drive the valve disc to rotate. A hardening layer is provided on the right valve body for stroke hardening. This application solves the technical problem that the disc valve is not hard enough due to the insufficient hardness of the valve body material, and the valve body is easily worn during the long opening and closing cycle of the disc valve, causing the valve to move unsmoothly, thereby affecting the service life and sealing of the disc valve. Based on the above patent, the disc valve needs to be closed when the middle valve body is not in use, and no flow path is set. However, the installation of the closed structure requires multiple bolts and nuts to fix it. This installation and fixing method is too cumbersome and it is troublesome to dismantle when opening the flow path. In this regard, in response to this technical problem, this application proposes a disc valve that is easy to disassemble and assemble. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a disc valve that is easy to disassemble and assemble, aiming to improve the problem in the prior art that the sealing structure of the middle valve body of the disc valve is not easy to disassemble and assemble.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A disc valve that is easy to disassemble and assemble comprises a valve body, an input port is provided on one side of the valve body, an output port 1 is provided on the other side of the input port, output port 2 is provided at the top and bottom ends of the valve body, a closing head is connected to the inside of the output port 2 via a fixing component, a rubber ring is provided on the outer wall of the bottom end of the closing head, a rotating shaft is rotatably connected to the inside of the valve body, a control component is provided at one end of the rotating shaft, a pull rod is fixedly connected to the other end of the rotating shaft, and the pull rod is connected to the valve body via a limit assembly.

[0007] Furthermore, the fixing assembly includes a screw hole opened on the second outer wall of the output port, a limiting rod is arranged inside the screw hole, one end of the limiting rod passes through the screw hole and the outer wall of the closing head in sequence, and is arranged inside the closing head, and the other end of the limiting rod is provided with a spring groove, the inside of the spring groove is connected to a threaded head through a spring, and the threaded head is threadedly connected to the inner wall of the screw hole.

[0008] Furthermore, one end of the spring is connected to the spring slot, and the other end of the spring is connected to the threaded head.

[0009] Furthermore, the control component includes a rod body fixedly connected to the bottom side of one end of the rotating shaft, a valve disc is fixedly connected to the front end of the bottom side of the rod body, a flow path channel is provided on the rear side of the input port, the flow path channel is fixedly connected to the inside of the valve body, and a flow path hole is opened on the rear side of the flow path channel.

[0010] Further, the rear side of the valve disc abuts against the rear side of the flow path channel.

[0011] Furthermore, the limit assembly includes a socket located at the top side of the other end of the rotating shaft, one end of the socket is fixedly connected to the upper front side of the outer wall of the valve body, and the other end of the socket is provided with a slot, and the outer wall of the rotating shaft is engaged and connected to the inside of the slot.

[0012] Furthermore, the pull rod is located at the top side of the input port, the outer wall of the pull rod is sleeved with a sealing sleeve, and the rear side of the sealing sleeve is arranged on the front side of the valve body.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, through the mutual cooperation of the closing head, the limit rod, the threaded head and the spring, the use of bolts and nuts to close and open the output port 2 can be reduced, thereby greatly reducing the steps of opening or closing the flow path, making the disassembly and assembly structure more convenient and improving the installation efficiency of the disc valve.

[0015] In the utility model, through the mutual cooperation of the clamping seat, the clamping groove and the pull rod, the pull rod can be limited when the disc valve is not in use, so that it is not easy to move, and the valve disc connected thereto is prevented from deflecting, thereby improving the stability of the disc valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a disc valve that is easy to assemble and disassemble proposed by the utility model;

[0017] Figure 2 A cross-sectional view of a disc valve that is easy to disassemble and assemble proposed by the utility model;

[0018] Figure 3This is a schematic diagram of the structure of a valve disc of a disc valve that is easy to disassemble and assemble proposed by the utility model;

[0019] Figure 4 This is a structural schematic diagram of a disc valve holder that is easy to assemble and disassemble proposed by the utility model;

[0020] Figure 5 This is a structural schematic diagram of a blocking head of a disc valve that is easy to disassemble and assemble proposed by the utility model;

[0021] Figure 6 The utility model provides a schematic diagram of the position of a spring of a disc valve which is easy to disassemble and assemble.

[0022] Legend:

[0023] 1. Valve body; 2. Input port; 3. Output port 1; 4. Output port 2; 5. Rotating shaft; 6. Rod body; 7. Valve disc; 8. Flow channel; 9. Sealing sleeve; 10. Pull rod; 11. Seat; 12. Shut-off head; 13. Limit rod; 14. Threaded head; 15. Spring; 16. Rubber ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment: a disc valve that is easy to disassemble and assemble, comprising a valve body 1, an input port 2 is provided on one side of the valve body 1, an output port 1 3 is provided on the other side of the input port 2, an output port 2 4 is provided on the top and bottom ends of the valve body 1, a blocking head 12 is connected to the inside of the output port 2 4 through a fixing component, a rubber ring 16 is provided on the outer wall of the bottom end of the blocking head 12, a rotating shaft 5 is rotatably connected to the inside of the valve body 1, a valve disc 7 is fixedly connected to the bottom front end of a rod body 6 fixedly connected to the bottom side of one end of the rotating shaft 5, a flow path passage is provided on the rear side of the input port 2 The flow path channel 8 is fixedly connected to the inside of the valve body 1, a flow path hole is opened on the rear side of the flow path channel 8, the rear side of the valve disc 7 abuts against the rear side of the flow path channel 8, the other end of the rotating shaft 5 is fixedly connected to the pull rod 10, one end of the holder 11 located on the top side of the other end of the rotating shaft 5 is fixedly connected to the upper front side of the outer wall of the valve body 1, the other end of the holder 11 is opened with a slot, the outer wall of the rotating shaft 5 is snap-fitted and connected to the inside of the slot, the pull rod 10 is located on the top side of the input port 2, the outer wall of the pull rod 10 is sleeved with a sealing sleeve 9, and the rear side of the sealing sleeve 9 is arranged on the front side of the valve body 1.

[0026] Specifically, the input port 2, the output port 1 3 and the output port 2 4 are all connected to the external pipeline through the flange. The flow path hole is used to circulate the liquid, and the degree of covering of the flow path hole by the valve disc 7 determines the flow amount and flow rate of the transported liquid. The holder 11 has a certain elasticity, and the opening size of the slot is slightly smaller than the diameter of the pull rod 10, so that the pull rod 10 is not easy to fall out after being inserted into the slot. When it is necessary to open the disc valve to transport the liquid, pull the pull rod 10 to apply force to the opening of the slot, so that the opening of the slot is deformed, so that the pull rod 10 is separated from the holder 11, and then the pull rod 10 is rotated to drive the rotating shaft 5 connected thereto to rotate, and the rod body 6 of the valve disc 7 connected to the bottom side of one end of the rotating shaft 5 is driven to rotate together, so that the valve disc 7 is displaced on the surface of the flow path channel 8, so that the flow path hole is exposed, thereby carrying out the liquid transportation work. When liquid delivery is not required, it can be reset, the squeeze slot is deformed, so that the pull rod 10 is snapped back into the slot and is not easy to move, thus avoiding the displacement of the valve disc 7 connected thereto, thereby improving the stability of the disc valve.

[0027] Reference Figure 5 and Figure 6 A limiting rod 13 is arranged inside the screw hole opened on the outer wall of the output port 24, one end of the limiting rod 13 passes through the screw hole and the outer wall of the closing head 12 in sequence, and is arranged inside the closing head 12, the other end of the limiting rod 13 is provided with a spring groove, the inside of the spring groove is connected with a threaded head 14 through a spring 15, one end of the spring 15 is connected to the spring groove, and the other end of the spring 15 is connected to the threaded head 14, the threaded head 14 is threadedly connected to the inner wall of the screw hole, and the threaded head 14 is provided with a force-applying member for assisting the rotation of the threaded head 14, so as to achieve the purpose of convenient twisting without tools.

[0028] Specifically, if it is necessary to increase the flow path to open the output port 24, the force-applying part on the threaded head 14 is used to rotate, thereby twisting the threaded head 14 to disengage the threaded head 14 from the screw hole, and releasing the fixation of the limiting rod 13 on the output port 24. Then, the limiting rod 13 is pulled out of the blocking head 12 to release the limiting fixation of the blocking head 12, so that the blocking head 12 is detached from the output port 24, and then the output port 24 is connected to an external pipeline for transportation. If the flow path needs to be closed, the plug 12 is inserted into the output port 24. The rubber ring 16 on the plug 12 can block the gap between the plug 12 and the inner wall of the output port 24, thereby increasing the sealing performance. Then the limit rod 13 is inserted into the plug 12, and the threaded head 14 is pressed while twisting to tighten it in the screw hole, and the spring 15 inside the limit rod 13 is compressed, so that the force generated by the reset of the spring 15 pushes the threaded head 14, so that the threads on the threaded head 14 bite the threads on the inner wall of the screw hole, so that the threaded head 14 is installed more firmly, and the plug 12 is installed more firmly. This installation method reduces the use of bolts and nuts, thereby greatly reducing the steps of opening or closing the flow path, making the disassembly and assembly structure more convenient, and improving the installation efficiency of the disc valve.

[0029] Working principle: Before connecting the disc valve, first confirm the flow path to be used to determine whether it is necessary to unseal the output port 24. If the flow path needs to be increased, use the force-applying part on the threaded head 14 to rotate, thereby twisting the threaded head 14, and disengaging the threaded head 14 from the screw hole, thereby releasing the fixation of the limit rod 13 on the output port 24, and then pull the limit rod 13 out of the blocking head 12 to release the limit fixation of the blocking head 12, so that the blocking head 12 is detached from the output port 24, and then the output port 24 is externally connected to a pipeline for transportation. When the disc valve needs to be opened to transport liquid, the pull rod 10 is pulled to apply force to the opening of the slot, causing the opening of the slot to deform, so that the pull rod 10 is separated from the seat 11, and then the pull rod 10 is rotated to drive the rotating shaft 5 connected to it to rotate, and the rod body 6 of the valve disc 7 connected to the bottom side of one end of the rotating shaft 5 is driven to rotate together, so that the valve disc 7 is displaced on the surface of the flow path 8, exposing the flow path hole, thereby transporting liquid.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc valve that is easy to assemble and disassemble, comprising a valve body (1), characterized in that: An input port (2) is provided on one side of the valve body (1), an output port 1 (3) is provided on the other side of the input port (2), an output port 2 (4) is provided at the top and bottom ends of the valve body (1), the interior of the output port 2 (4) is connected to a closing head (12) via a fixing assembly, a rubber ring (16) is provided on the outer wall of the bottom end of the closing head (12), a rotating shaft (5) is rotatably connected to the interior of the valve body (1), a control assembly is provided at one end of the rotating shaft (5), a pull rod (10) is fixedly connected to the other end of the rotating shaft (5), and the pull rod (10) is connected to the valve body (1) via a limit assembly.

2. The disc valve that is easy to assemble and disassemble according to claim 1, characterized in that: The fixing assembly comprises a screw hole formed on the outer wall of the second output port (4), a limiting rod (13) being arranged inside the screw hole, one end of the limiting rod (13) passing through the screw hole and the outer wall of the closing head (12) in sequence, and being arranged inside the closing head (12), the other end of the limiting rod (13) being provided with a spring groove, the interior of the spring groove being connected to a threaded head (14) via a spring (15), and the threaded head (14) being threadedly connected to the inner wall of the screw hole.

3. The disc valve that is easy to assemble and disassemble according to claim 2, characterized in that: One end of the spring (15) is connected to the spring slot, and the other end of the spring (15) is connected to the threaded head (14).

4. The disc valve that is easy to assemble and disassemble according to claim 1, characterized in that: The control assembly comprises a rod body (6) fixedly connected to the bottom side of one end of the rotating shaft (5); a valve disc (7) is fixedly connected to the front end of the bottom side of the rod body (6); a flow path channel (8) is provided at the rear side of the input port (2); the flow path channel (8) is fixedly connected to the inside of the valve body (1); and a flow path hole is provided at the rear side of the flow path channel (8).

5. The disc valve that is easy to assemble and disassemble according to claim 4, characterized in that: The rear side of the valve disc (7) abuts against the rear side of the flow path channel (8).

6. The disc valve that is easy to assemble and disassemble according to claim 1, characterized in that: The limit assembly comprises a holder (11) located at the top side of the other end of the rotating shaft (5), one end of the holder (11) is fixedly connected to the upper front side of the outer wall of the valve body (1), and the other end of the holder (11) is provided with a slot, and the outer wall of the rotating shaft (5) is snap-connected to the inside of the slot.

7. The disc valve that is easy to assemble and disassemble according to claim 1, characterized in that: The pull rod (10) is located on the top side of the input port (2), the outer wall of the pull rod (10) is provided with a sealing sleeve (9), and the rear side of the sealing sleeve (9) is arranged on the front side of the valve body (1).

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