Mute waterproof hammer check valve convenient to maintain

Abstract

The utility model relates to the technical field of check valves, and discloses a mute waterproof hammer check valve convenient to maintain, which comprises a main body mechanism. The cylindrical protruding block is arranged at the bottom of the valve body, the interior of the protruding block is hollow, the protruding block is connected with the connecting rod in the valve body, the connecting rod can be inserted into the protruding block to be fixed, when water flow flows in the valve body, the impact pressure of the water flow enables the limiting block to drive the movable rod to move rightwards, and therefore the water flow is prevented from flowing out of the valve body. When the water flow flows back, the baffle drives the movable rod to move leftwards, the limiting block blocks the pipe opening of the connecting piece and prevents the water flow from continuously flowing back due to the impact pressure of the backflow water flow, the movable rod is internally provided with a thread and is connected with the baffle through the screw, and when the baffle is screwed off through the thread, the movable rod is screwed off. And the movable rod loses the baffle which is a part with a limiting function, so that the movable rod can drive the limiting block to slide out of the adjusting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a silent and waterproof check valve which is easy to maintain. Background Art

[0002] The anti-water hammer check valve is a device used to prevent the backflow of liquid in the pipeline. It is usually installed at the end or elbow of the pipeline and has two states: open and closed. The anti-water hammer check valve is an important pipeline accessory that can prevent the backflow of liquid in the pipeline and protect the safe and stable operation of the pipeline system.

[0003] The existing check valve is fixed at the connection between the pipeline and the check valve body by using a mounting plate, so that the pipeline and the check valve body are more stable and do not shake. However, too many connecting objects are used at the connection between the check valve body and the pipeline, which makes it inconvenient to disassemble and maintain the check valve if it is damaged inside. Therefore, a silent and waterproof check valve that is easy to maintain is needed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a silent and waterproof check valve which is easy to maintain.

[0005] The utility model is implemented by the following technical scheme: a silent anti-water hammer check valve which is easy to maintain, comprising a main body mechanism, connecting mechanisms are arranged on both sides of the main body mechanism, and a fixing mechanism is arranged on the top of the main body mechanism;

[0006] The main body mechanism includes a valve body, a connecting rod is inserted into the inner wall of the valve body, an adjusting piece is fixedly connected to the top of the connecting rod, a movable rod is slidably connected to the inner wall of the adjusting piece, a threaded hole is opened on the right side of the movable rod, a screw is threadedly connected to the inner wall of the threaded hole, a baffle is fixedly connected to the right side of the screw, a limiting block is fixedly connected to the left side of the movable rod, and a protrusion is fixedly connected to the bottom of the valve body.

[0007] Through the above technical solution, a cylindrical protrusion is provided at the bottom of the valve body, and the protrusion is connected to the connecting rod inside the valve body, so that the connecting rod can be inserted into the protrusion for fixation, and when water flows in the valve body, the impact pressure of the water flow will cause the limit block to drive the movable rod to move to the right, thereby vacating a position for water to pass through, but if the water flow flows back, the impact pressure of the backflowing water flow will cause the baffle to drive the movable rod to move to the left, and cause the limit block to block the pipe mouth of the connector, preventing the water flow from continuing to flow back.

[0008] As a further improvement of the above solution, the interior of the valve body is hollow.

[0009] Through the above technical solution, the movable rod inside the valve body is threaded inside and connected to the baffle through a screw. When the baffle is unscrewed through the thread, the movable rod will lose the baffle as a part with limiting function, so that the movable rod can slide out of the adjusting part with the limiting block. This arrangement can effectively and conveniently replace damaged parts, making the equipment maintenance more convenient.

[0010] As a further improvement of the above scheme, the connecting mechanism includes two connecting parts, which are respectively fixedly connected to the left and right sides of the valve body, and the outer sides of the connecting parts are fixedly connected to a first flange plate, and a plurality of connecting holes are opened on the surface of the first flange plate, and the inner sides of the connecting parts are fixedly connected to a sealing ring.

[0011] Through the above technical solution, multiple connecting holes are set on the surface of the first flange to be fixedly connected to the external pipes. When the limit block is hit against the internal pipe mouth of the connector by the pressure of the water flow impact, the rubber sealing ring will unload the force, thereby increasing its buffering force and effectively reducing the sound during the collision.

[0012] As a further improvement of the above scheme, two first flanges are provided, and the two first flanges are symmetrically distributed with the valve body as the center, two groups of connecting holes are provided, and the two groups of connecting holes are symmetrically distributed with the valve body as the center, and two sealing rings are provided, and the two sealing rings are symmetrically distributed with the valve body as the center.

[0013] As a further improvement of the above solution, the sealing ring is made of rubber.

[0014] Through the above technical solution, the rubber material has the effect of reducing pressure and silencing noise.

[0015] As a further improvement of the above scheme, the fixing mechanism includes a valve port, which is opened at the top of the valve body, and a second flange is fixedly connected to the top of the valve port. A plurality of flange screw holes are opened on the top surface of the second flange, and a flange connecting plate is connected to the top of the second flange by bolts. Bolts are arranged at positions corresponding to the flange screw holes, and the number and positions of the flange screw holes correspond to the bolts.

[0016] According to the technical solution, a second flange is arranged on the top of the valve port, and a plurality of flange screw holes are used to connect and fix the second flange to the flange connection plate.

[0017] As a further improvement of the above solution, the valve port is communicated with the interior of the valve body.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model provides a cylindrical protrusion at the bottom of the valve body, the interior of the protrusion is hollow and connected to the connecting rod inside the valve body, so that the connecting rod can be inserted into the protrusion for fixing, and when water flows in the valve body, the impact pressure of the water flow will cause the limit block to drive the movable rod to move to the right, thereby vacating a position for the water flow to pass through; however, if the water flow flows back, the impact pressure of the backflowing water flow will cause the baffle to drive the movable rod to move to the left, and cause the limit block to block the pipe mouth of the connecting piece, preventing the water flow from continuing to flow back; the interior of the movable rod is provided with a thread and is connected to the baffle by a screw; when the baffle is unscrewed by the thread, the movable rod will lose the baffle as a part with limiting function, so that the movable rod can slide out of the adjusting piece with the limit block, and such an arrangement can effectively and conveniently replace damaged parts therein, making the maintenance of the equipment more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model without the flange connection plate;

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the valve body of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the adjusting member of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the adjusting member without the connecting rod of the utility model.

[0025] Description of main symbols:

[0026] 1. Main body; 101. Valve body; 102. Connecting rod; 103. Adjusting member; 104. Movable rod; 105. Threaded hole; 106. Screw; 107. Baffle; 108. Limit block; 109. Bump; 2. Connecting mechanism; 201. Connecting member; 202. First flange; 203. Connecting hole; 204. Sealing ring; 3. Fixing mechanism; 301. Valve port; 302. Second flange; 303. Flange screw hole; 304. Flange connecting plate; 305. Bolt. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5 , a silent anti-water hammer check valve that is easy to maintain in this embodiment includes a main body mechanism 1, a connecting mechanism 2 is provided on both sides of the main body mechanism 1, and a fixing mechanism 3 is provided on the top of the main body mechanism 1;

[0030] The main body mechanism 1 includes a valve body 101, a connecting rod 102 is inserted into the inner wall of the valve body 101, an adjusting piece 103 is fixedly connected to the top of the connecting rod 102, a movable rod 104 is slidably connected to the inner wall of the adjusting piece 103, a threaded hole 105 is opened on the right side of the movable rod 104, a screw 106 is threadedly connected to the inner wall of the threaded hole 105, a baffle 107 is fixedly connected to the right side of the screw 106, a limiting block 108 is fixedly connected to the left side of the movable rod 104, a protrusion 109 is fixedly connected to the bottom of the valve body 101, and the interior of the valve body 101 is hollow.

[0031] The connecting mechanism 2 includes two connecting parts 201, and the two connecting parts 201 are fixedly connected to the left and right sides of the valve body 101 respectively. The outer sides of the connecting parts 201 are fixedly connected with first flanges 202, and the surface of the first flanges 202 is provided with multiple connecting holes 203. The inner sides of the connecting parts 201 are fixedly connected with sealing rings 204. There are two first flanges 202, and the two first flanges 202 are symmetrically distributed with the valve body 101 as the center. There are two groups of connecting holes 203, and the two groups of connecting holes 203 are symmetrically distributed with the valve body 101 as the center. There are two sealing rings 204, and the two sealing rings 204 are symmetrically distributed with the valve body 101 as the center. The sealing rings 204 are made of rubber.

[0032] The fixing mechanism 3 includes a valve port 301, which is opened at the top of the valve body 101. A second flange 302 is fixedly connected to the top of the valve port 301. A plurality of flange screw holes 303 are opened on the top surface of the second flange 302. The top of the second flange 302 is connected to a flange connecting plate 304 through bolts 305. Bolts 305 are arranged at positions corresponding to the flange screw holes 303. The number and positions of the flange screw holes 303 correspond to the bolts 305. The valve port 301 is connected to the inside of the valve body 101.

[0033] The implementation principle of a silent anti-water hammer check valve that is easy to maintain in the embodiment of the present application is as follows: the silent anti-water hammer check valve that is easy to maintain is provided with a cylindrical protrusion 109 at the bottom of the valve body 101, the interior of the protrusion 109 is hollow and connected to the connecting rod 102 inside the valve body 101, so that the connecting rod 102 can be inserted into the protrusion 109 for fixation, and when the water flows in the valve body 101, the impact pressure of the water flow will cause the limit block 108 to drive the movable rod 104 to move to the right, thereby vacating a position for the water to pass through, but if the water flows back, The impact pressure of the backflowing water will cause the baffle 107 to drive the movable rod 104 to move to the left, and cause the limit block 108 to block the pipe mouth of the connecting piece 201 to prevent the water from continuing to flow back. The movable rod 104 is provided with a thread inside and is connected to the baffle 107 by a screw 106. When the baffle 107 is unscrewed through the thread, the movable rod 104 will lose the baffle 107, which has the limiting function, so that the movable rod 104 can slide out of the adjusting piece 103 with the limit block 108. This arrangement can effectively and conveniently replace damaged parts, making the equipment maintenance more convenient.

[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A silent anti-water hammer check valve that is easy to maintain, characterized in that: It comprises a main body mechanism (1), the left and right sides of the main body mechanism (1) are provided with connecting mechanisms (2), and the top of the main body mechanism (1) is provided with a fixing mechanism (3); The main body mechanism (1) comprises a valve body (101), a connecting rod (102) is inserted into the inner wall of the valve body (101), an adjusting member (103) is fixedly connected to the top of the connecting rod (102), a movable rod (104) is slidably connected to the inner wall of the adjusting member (103), a threaded hole (105) is provided on the right side of the movable rod (104), a screw rod (106) is threadedly connected to the inner wall of the threaded hole (105), a baffle (107) is fixedly connected to the right side of the screw rod (106), a limiting block (108) is fixedly connected to the left side of the movable rod (104), and a protrusion (109) is fixedly connected to the bottom of the valve body (101).

2. The easy-to-maintain silent anti-water hammer check valve according to claim 1, characterized in that: The interior of the valve body (101) is hollow.

3. The easy-to-maintain silent anti-water hammer check valve according to claim 1, characterized in that: The connecting mechanism (2) comprises two connecting members (201), the two connecting members (201) being fixedly connected to the left and right sides of the valve body (101), respectively; the outer sides of the connecting members (201) are fixedly connected to a first flange (202), a surface of the first flange (202) is provided with a plurality of connecting holes (203), and the inner sides of the connecting members (201) are fixedly connected to a sealing ring (204).

4. The easy-to-maintain silent anti-water hammer check valve according to claim 3, characterized in that: Two first flanges (202) are provided, and the two first flanges (202) are symmetrically distributed with the valve body (101) as the center. Two groups of connecting holes (203) are provided, and the two groups of connecting holes (203) are symmetrically distributed with the valve body (101) as the center. Two sealing rings (204) are provided, and the two sealing rings (204) are symmetrically distributed with the valve body (101) as the center.

5. The easy-to-maintain silent anti-water hammer check valve according to claim 3, characterized in that: The sealing ring (204) is made of rubber.

6. The easy-to-maintain silent anti-water hammer check valve according to claim 1, characterized in that: The fixing mechanism (3) comprises a valve port (301), wherein the valve port (301) is provided at the top of the valve body (101), a second flange (302) is fixedly connected to the top of the valve port (301), a plurality of flange screw holes (303) are provided on the top surface of the second flange (302), the top of the second flange (302) is connected to a flange connecting plate (304) via bolts (305), bolts (305) are provided at positions corresponding to the flange screw holes (303), and the number and positions of the flange screw holes (303) correspond to the bolts (305).

7. The easy-to-maintain silent anti-water hammer check valve according to claim 6, characterized in that: The valve port (301) is in communication with the interior of the valve body (101).

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