Stainless steel rubber clack check valve

Abstract

The utility model relates to the technical field of rubber clack check valves, and discloses a stainless steel rubber clack check valve which comprises a valve seat, two supporting blocks are installed on the inner wall of the valve seat, one side of each supporting block is fixedly connected with a protection mechanism, and the left side of the valve seat is connected with a connecting pipe A in a penetrating mode. According to the stainless steel rubber clack check valve, through the arrangement of the protection mechanism, when the stainless steel rubber clack check valve is used, a silica gel pad on the back of a rubber clack body is in lap joint with the bottom of a valve seat, a water source bursts through the rubber clack body to form a passage after water is introduced, and after the water source is closed, the rubber clack body bears opposite acting force provided by two torsion springs on the top; when the valve seat is opened, the rubber clack body returns to the initial position, the valve seat is sealed, at the moment, the bottom of the rubber clack body and the inner bottom of the valve seat are abraded, friction between the rubber clack body and the valve seat is replaced with the added silica gel pad, and therefore the effect of protecting the rubber clack body is achieved, and the service life of equipment is prolonged.

Description

A stainless steel rubber flap check valve Technical Field

[0001] This utility model relates to the technical field of rubber flap check valves, and in particular to a stainless steel rubber flap check valve. Background Technology

[0002] In fluid transport systems, check valves are crucial components, preventing backflow of the medium and ensuring the normal operation and safety of the system. With continuous industrial development and increasingly stringent fluid control requirements in various engineering projects, higher standards are being set for the performance, reliability, and durability of check valves.

[0003] In existing stainless steel rubber flap check valves, wear often occurs at the contact point between the rubber flap and the valve seat during use. Therefore, it is necessary to install buffer material at this contact point to reduce the water hammer effect when the valve is closed, extend the valve's service life, and improve the stability of system operation. Thus, a stainless steel rubber flap check valve is proposed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a stainless steel rubber flap check valve, which solves the problem mentioned in the background art that the contact part between the rubber flap and the valve seat of the existing stainless steel rubber flap check valve usually wears during use. Therefore, it is necessary to install a buffer material at the contact part to reduce the water hammer effect generated when the valve is closed, extend the service life of the valve, and improve the stability of the system operation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel rubber flap check valve, comprising a valve seat, two support blocks installed on the inner wall of the valve seat, a protective mechanism fixedly connected to one side of the support blocks, a connecting pipe A extending through the left side of the valve seat, a connecting mechanism slidably connected to the surface of the connecting pipe A, the protective mechanism comprising a fixed column fixedly connected to one side of the support blocks, a torsion spring fixedly connected to one side of the fixed column, a rotating rod fixedly connected to one side of the torsion spring, a rubber flap body fixedly connected to one side of the rotating rod, and a silicone pad fixedly connected to the bottom of the rubber flap body; the connecting mechanism comprises a flange slidably connected to the surface of the connecting pipe A, a plurality of positioning holes being formed on the surface of the flange, and a double-ended screw threaded into the internal of each positioning hole.

[0008] As a further embodiment of this utility model, the rotating rod is rotatably connected to the inside of the fixed column, and the silicone pad is attached to the inner bottom of the valve seat. The rotating rod, through its arrangement, drives the rubber flap body to rotate.

[0009] As a further embodiment of this utility model, the surface of the double-ended screw is provided with a threaded hole, and a positioning nut is threadedly connected inside the threaded hole. The positioning nut serves to limit the movement of the double-ended screw.

[0010] As a further embodiment of this utility model, a connecting pipe B is connected through the back of the valve seat, and a flange connector is fixedly connected to one side of the connecting pipe B. The flange connector serves to connect the equipment.

[0011] As a further embodiment of this utility model, a sealing port is provided on the top of the valve seat, and a sealing cap is threaded onto the surface of the sealing port, thereby achieving a sealing function.

[0012] As a further embodiment of this utility model, a connecting block is fixedly connected to the surface of the valve seat, and a water pressure warning mechanism is installed on the surface of the connecting block. The water pressure warning mechanism serves to detect water pressure.

[0013] As a further embodiment of this utility model, the water pressure warning mechanism includes a PLC controller installed on the surface of the connecting block. One side of the PLC controller is electrically connected to a pressure gauge via a power cord, and the other side of the PLC controller is electrically connected to an alarm light via a power cord. The pressure gauge is installed on the surface of the connecting pipe A, and the alarm light serves as a warning.

[0014] (III) Beneficial Effects

[0015] This utility model provides a stainless steel rubber flap check valve, which has the following beneficial effects:

[0016] 1. This stainless steel rubber flap check valve, through the setting of the protective mechanism, when in use, the silicone pad on the back of the rubber flap body overlaps the bottom of the valve seat. After water is turned on, the water source flushes open the rubber flap body, forming a passage. When the water source is turned off, the rubber flap body is subjected to the reverse force provided by the two torsion springs at the top, causing the rubber flap body to return to the initial position and seal the valve seat. At this time, the bottom of the rubber flap body will wear against the bottom of the valve seat. The added silicone pad replaces the friction between the rubber flap body and the valve seat, thereby achieving the effect of protecting the rubber flap body and extending the service life of the equipment.

[0017] 2. This stainless steel rubber flap check valve, through its connection mechanism, allows for quick installation of the equipment. First, the flange connector on one side of the equipment is installed on the external pipeline. Then, the connecting pipe A is inserted into the pipeline on the other side. Next, the flange on the surface of the connecting pipe A is rotated and moved so that the positioning holes on the flange are aligned with the positioning holes on the external pipeline. Finally, the double-ended screw and positioning nut are used for quick installation. This eliminates the need to spend a lot of time and effort aligning the bolt holes of the two flanges before installation, greatly shortening the installation time and improving installation efficiency. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is a schematic diagram of the protective mechanism structure of this utility model;

[0020] Figure 3 is a schematic diagram of the connection mechanism of this utility model;

[0021] Figure 4 is a schematic diagram of the valve seat structure of this utility model.

[0022] In the diagram: 1. Valve seat; 2. Support block; 3. Protective mechanism; 301. Fixed column; 302. Torsion spring; 303. Rotating rod; 304. Rubber flap body; 305. Silicone gasket; 4. Connecting pipe A; 5. Connecting mechanism; 501. Flange; 502. Double-ended screw; 6. Positioning nut; 7. Connecting pipe B; 8. Flange connector; 9. Sealing port; 10. Sealing cover; 11. Connecting block; 12. Water pressure warning mechanism; 1201. PLC controller; 1202. Pressure gauge; 1203. Alarm light. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please refer to Figures 1 to 4. This utility model provides a technical solution: a stainless steel rubber flap check valve, including a valve seat 1. Two support blocks 2 are installed on the inner wall of the valve seat 1. A protective mechanism 3 is fixedly connected to one side of the support block 2. The protective mechanism 3 protects the rubber flap body 304, extending the service life of the equipment. A connecting pipe A4 is connected through the left side of the valve seat 1. A connecting mechanism 5 is slidably connected to the surface of the connecting pipe A4. The connecting mechanism 5 eliminates the need to spend a lot of time and effort aligning the bolt holes of the two flanges before installation, greatly improving efficiency. The installation time is shortened and the installation efficiency is improved. The protective mechanism 3 includes a fixed column 301 fixedly connected to one side of the support block 2. A torsion spring 302 is fixedly connected to one side of the fixed column 301. A rotating rod 303 is fixedly connected to one side of the torsion spring 302. A rubber flap body 304 is fixedly connected to one side of the rotating rod 303. A silicone pad 305 is fixedly connected to the bottom of the rubber flap body 304. The connecting mechanism 5 includes a flange 501 slidably connected to the surface of the connecting pipe A4. Several positioning holes are opened on the surface of the flange 501. Double-ended screws 502 are threaded into the internal of the positioning holes.

[0025] The rotating rod 303 is rotatably connected to the inside of the fixed column 301, and the silicone pad 305 overlaps the inner bottom of the valve seat 1. The rotating rod 303 plays the role of driving the rubber flap body 304 to rotate.

[0026] The surface of the double-ended screw 502 is provided with a threaded hole, and a positioning nut 6 is threadedly connected inside the threaded hole. The positioning nut 6 serves to limit the position of the double-ended screw 502.

[0027] A connecting pipe B7 is connected through the back of the valve seat 1, and a flange connector 8 is fixedly connected to one side of the connecting pipe B7. The flange connector 8 serves to connect the equipment.

[0028] A sealing port 9 is provided on the top of the valve seat 1, and a sealing cover 10 is threaded onto the surface of the sealing port 9. The sealing cover 10 serves to seal the valve.

[0029] A connecting block 11 is fixedly connected to the surface of the valve seat 1, and a water pressure warning mechanism 12 is installed on the surface of the connecting block 11. The water pressure warning mechanism 12 serves to detect water pressure.

[0030] The water pressure warning mechanism 12 includes a PLC controller 1201 installed on the surface of the connecting block 11. A pressure gauge 1202 is electrically connected to one side of the PLC controller 1201 via a power cord, and an alarm light 1203 is electrically connected to the other side of the PLC controller 1201 via a power cord. The pressure gauge 1202 is installed on the surface of the connecting pipe A4. The alarm light 1203 serves as a warning device.

[0031] In this invention, the working steps of the device are as follows:

[0032] First step: When in use, the silicone pad 305 on the back of the rubber flap body 304 overlaps the bottom of the valve seat 1. After water is turned on, the water source flushes the rubber flap body 304 open to form a passage. When the water source is turned off, the rubber flap body 304 is subjected to the reverse force provided by the two torsion springs 302 at the top, which makes the rubber flap body 304 return to the starting position and seal the valve seat 1. At this time, the bottom of the rubber flap body 304 will wear against the bottom of the valve seat 1. The added silicone pad 305 replaces the friction between the rubber flap body 304 and the valve seat 1.

[0033] The second step: When installing the equipment, first install the flange connector 8 on one side of the equipment onto the external pipe. Then, insert the connecting pipe A4 into the pipe on the other side. Then rotate and move the flange 501 on the surface of the connecting pipe A4 so that the positioning hole on the flange 501 is aligned with the positioning hole on the external pipe. Then, use the double-ended screw 502 and the positioning nut 6 for quick installation.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel rubber flap check valve, comprising a valve seat (1), characterized in that: Two support blocks (2) are installed on the inner wall of the valve seat (1). A protective mechanism (3) is fixedly connected to one side of the support block (2). A connecting pipe A (4) is connected through the left side of the valve seat (1). A connecting mechanism (5) is slidably connected to the surface of the connecting pipe A (4). The protective mechanism (3) includes a fixed column (301) fixedly connected to one side of the support block (2). A torsion spring (302) is fixedly connected to one side of the fixed column (301). A rotating rod (303) is fixedly connected to one side of the torsion spring (302). A rubber flap body (304) is fixedly connected to one side of the rotating rod (303). A silicone pad (305) is fixedly connected to the bottom of the rubber flap body (304). The connecting mechanism (5) includes a flange (501) slidably connected to the surface of the connecting pipe A (4). Several positioning holes are opened on the surface of the flange (501). A double-ended screw (502) is threaded into the internal of the positioning holes.

2. The stainless steel rubber flap check valve according to claim 1, characterized in that: The rotating rod (303) is rotatably connected to the inside of the fixed column (301), and the silicone pad (305) overlaps the inner bottom of the valve seat (1).

3. The stainless steel rubber flap check valve according to claim 1, characterized in that: The surface of the double-ended screw (502) is provided with a threaded hole, and a positioning nut (6) is threadedly connected inside the threaded hole.

4. A stainless steel rubber flap check valve according to claim 1, characterized in that: A connecting pipe B (7) is connected through the back of the valve seat (1), and a flange connector (8) is fixedly connected to one side of the connecting pipe B (7).

5. A stainless steel rubber flap check valve according to claim 1, characterized in that: The valve seat (1) has a sealing port (9) at its top, and a sealing cap (10) is threaded onto the surface of the sealing port (9).

6. A stainless steel rubber flap check valve according to claim 1, characterized in that: A connecting block (11) is fixedly connected to the surface of the valve seat (1), and a water pressure warning mechanism (12) is installed on the surface of the connecting block (11).

7. A stainless steel rubber flap check valve according to claim 6, characterized in that: The water pressure warning mechanism (12) includes a PLC controller (1201) installed on the surface of the connecting block (11). One side of the PLC controller (1201) is electrically connected to a pressure gauge (1202) via a power cord, and the other side of the PLC controller (1201) is electrically connected to an alarm light (1203) via a power cord. The pressure gauge (1202) is installed on the surface of the connecting pipe A (4).

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