Vertical check valve

Abstract

The utility model relates to the technical field of vertical check valves, and discloses a vertical check valve which comprises a check valve body, a supporting mechanism is arranged at the top in the check valve body, a buffering mechanism is arranged at the bottom of the supporting mechanism, the buffering mechanism comprises a fixing piece, the fixing piece is fixedly connected to the bottom in the check valve body, and the fixing piece is fixedly connected to the bottom in the check valve body. Water inlet grooves are formed in the two sides of the interior of the fixing piece, and a second mounting piece is fixedly connected to the top of the fixing piece. According to the vertical check valve, through the arranged buffering mechanism, under the elastic potential energy of a spring, generated impact force can be effectively buffered, the phenomenon that the interior of the check valve body is damaged due to the fact that the impact force is too large is avoided, and the check valve body is protected; and through the arrangement of the supporting ring, the first positioning piece and the second positioning piece, the first mounting piece can be supported, and the stability of the supporting rod in the sliding process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical check valves, in particular to a vertical check valve. Background Art

[0002] A one-way valve is a valve that allows fluid to flow only along the inlet, but the medium at the outlet cannot flow back. It is commonly known as a one-way valve. A one-way valve is also called a check valve or a non-return valve. It is used in hydraulic systems to prevent oil from flowing in the opposite direction, or in pneumatic systems to prevent compressed air from flowing in the opposite direction. There are two types of one-way valves: straight-through and right-angle. Straight-through one-way valves are installed on the pipeline with threaded connections. Right-angle one-way valves are available in three types: threaded connection, plate connection, and flange connection.

[0003] The patent network announcement number CN 203413178 U discloses a vertical check valve. It mainly solves the problems of poor sealing, short service life and low wear resistance of the existing vertical check valve when in use. The check valve includes a valve body, a valve stem, a valve disc and a valve seat. A bracket is fixed to the upper end of the valve body, a through hole is provided at the lower end of the bracket, the valve stem passes through the through hole, the valve disc is fixed to the lower end of the valve stem, and the valve seat is fixed to the inner wall of the valve body. The valve disc is located on the upper end face of the valve seat, and the end face of the valve disc is provided with a trapezoidal groove that is small outside and large inside. A seal is injection molded in the trapezoidal groove, and the end face of the seal fits the upper end face of the valve seat. The vertical check valve adopts a seal made of rubber or polytetrafluoroethylene material on the valve disc. When in use, the seal is not easy to detach, the sealing effect is good, and it also has an anti-corrosion effect and has the advantage of a long service life.

[0004] The applicant believes that the vertical check valve has the following disadvantages: the vertical check valve does not have a buffer structure inside, which means that when the water flow is too large for a long time, it is easy to cause damage to the internal components of the vertical check valve, which is not conducive to protecting the vertical check valve and has defects. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical check valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical check valve, comprising a check valve body, a support mechanism is arranged at the top of the check valve body, and a buffer mechanism is arranged at the bottom of the support mechanism.

[0007] The buffer mechanism includes a fixing part, which is fixedly connected to the bottom of the check valve body, and water inlet grooves are opened on both sides of the fixing part. A second mounting part is fixedly connected to the top of the fixing part, and a first mounting part is arranged on the top of the second mounting part. A support part is fixedly connected to the inner wall of the first mounting part, and a support rod is slidably connected in the support part, and the support rod is arranged in the check valve body.

[0008] Preferably, the number of the support rods is four, and the two support rods are symmetrically arranged, so that the first mounting member can be supported by the arranged support rods.

[0009] Preferably, a first fixing ring is fixedly connected to the surface of the support rod, and a spring is arranged on the top of the first fixing ring. The spring is sleeved on the surface of the support rod. Under the elastic potential energy of the spring itself, the impact force generated can be effectively buffered to avoid damage to the inside of the return valve body caused by excessive impact force.

[0010] Preferably, a second fixing ring is fixedly connected to the inner bottom of the first mounting member, and the second fixing ring is arranged in the check valve body. The second fixing ring is arranged to reinforce the first mounting member.

[0011] Preferably, the support mechanism includes a support ring, which is fixedly connected to the top of the support rod, and the top of the support ring is better connected to a first support plate, and the surface of the first support plate is fixedly connected to a second support plate, and the first support plate and the second support plate are both arranged in the check valve body. By setting the support ring and the first positioning member and the second positioning member, the first mounting member can be supported to ensure the stability of the support rod during the sliding process.

[0012] Preferably, the first support plate and the second support plate are fixedly connected with a first positioning member on the top, the first positioning member is fixedly connected with a second positioning member on the top, and the second positioning member is slidably connected to the top of the check valve body. The support rod can be supported by the first positioning member and the second positioning member.

[0013] Compared with the prior art, the utility model provides a vertical check valve, which has the following beneficial effects:

[0014] 1. The vertical check valve can effectively buffer the impact force generated by the spring's own elastic potential energy through the buffer mechanism, avoiding the phenomenon that the impact force is too large and causes damage to the inside of the check valve body, thereby protecting the check valve body.

[0015] 2. The vertical check valve can support the first mounting member through the support mechanism, the support ring, the first positioning member and the second positioning member, thereby ensuring the stability of the support rod during the sliding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the buffer mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the support mechanism of the utility model.

[0021] In the figure: 1. check valve body; 2. buffer mechanism; 21. support rod; 22. first fixing ring; 23. fixing member; 24. spring; 25. support member; 26. second fixing ring; 27. first mounting member; 28. second mounting member; 3. supporting mechanism; 31. first supporting plate; 32. first positioning member; 33. second supporting plate; 34. second positioning member; 35. supporting ring. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides a technical solution:

[0024] Embodiment 1:

[0025] Combination Figure 1-2 to Figure 3 A vertical check valve comprises a check valve body 1, a support mechanism 3 is arranged at the top of the check valve body 1, and a buffer mechanism 2 is arranged at the bottom of the support mechanism 3.

[0026] The buffer mechanism 2 includes a fixing member 23, which is fixedly connected to the bottom of the check valve body 1. Water inlet grooves are provided on both sides of the fixing member 23. A second mounting member 28 is fixedly connected to the top of the fixing member 23. A first mounting member 27 is provided on the top of the second mounting member 28. A support member 25 is fixedly connected to the inner wall of the first mounting member 27. A support rod 21 is slidably connected to the support member 25. The support rod 21 is provided in the check valve body 1.

[0027] Furthermore, four support rods 21 are provided, and two support rods 21 are symmetrically provided. The first mounting member 27 is supported by the provided support rods 21 .

[0028] Furthermore, a first fixing ring 22 is fixedly connected to the surface of the support rod 21, and a spring 24 is arranged on the top of the first fixing ring 22. The spring 24 is sleeved on the surface of the support rod 21. Under the elastic potential energy of the spring 24 itself, the impact force generated can be effectively buffered to avoid damage to the inside of the return valve body caused by excessive impact force.

[0029] Furthermore, a second fixing ring 26 is fixedly connected to the bottom of the first mounting member 27 . The second fixing ring 26 is disposed in the check valve body 1 . The second fixing ring 26 is provided to reinforce the first mounting member 27 .

[0030] Embodiment 2:

[0031] See also Figure 4 On the basis of the first embodiment, the support mechanism 3 further comprises a support ring 35, the support ring 35 is fixedly connected to the top of the support rod 21, the top of the support ring 35 is better connected with a first support plate 31, the surface of the first support plate 31 is fixedly connected with a second support plate 33, the first support plate 31 and the second support plate 33 are both arranged in the check valve body 1, and the first mounting member 27 can be supported by the support ring 35 and the first positioning member 32 and the second positioning member 34, thereby ensuring the stability of the support rod 21 during the sliding process.

[0032] Furthermore, a first positioning member 32 is fixedly connected to the top of the first support plate 31 and the second support plate 33, a second positioning member 34 is fixedly connected to the top of the first positioning member 32, and the second positioning member 34 is slidably connected to the top of the check valve body 1. The support rod 21 can be supported by the first positioning member 32 and the second positioning member 34.

[0033] During actual operation, when this device is used, water will first flow in from the water inlet groove. At this time, the water will impact the second fixing ring 26 and drive the support member 25 to slide upward on the surface of the support rod 21, so that its spring 24 itself is in a compressed state. Under the elastic potential energy of the spring 24 itself, the impact force generated can be effectively buffered to avoid damage to the return valve body caused by excessive impact force, thereby protecting the return valve body. By setting the support ring 35, the first positioning member 32 and the second positioning member 34, the first mounting member 27 can be supported to ensure the stability of the support rod 21 during the sliding process.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vertical check valve, comprising a check valve body (1), characterized in that: A support mechanism (3) is provided at the top of the check valve body (1), and a buffer mechanism (2) is provided at the bottom of the support mechanism (3); The buffer mechanism (2) comprises a fixing member (23), the fixing member (23) being fixedly connected to the bottom of the check valve body (1), water inlet grooves being provided on both sides of the fixing member (23), a second mounting member (28) being fixedly connected to the top of the fixing member (23), a first mounting member (27) being provided on the top of the second mounting member (28), a support member (25) being fixedly connected to the inner wall of the first mounting member (27), a support rod (21) being slidably connected to the inside of the support member (25), and the support rod (21) being provided in the check valve body (1).

2. A vertical check valve according to claim 1, characterized in that: The number of the support rods (21) is four, and the two support rods (21) are symmetrically arranged.

3. A vertical check valve according to claim 1, characterized in that: A first fixing ring (22) is fixedly connected to the surface of the support rod (21); a spring (24) is arranged on the top of the first fixing ring (22); and the spring (24) is sleeved on the surface of the support rod (21).

4. A vertical check valve according to claim 1, characterized in that: A second fixing ring (26) is fixedly connected to the inner bottom of the first mounting member (27), and the second fixing ring (26) is arranged in the check valve body (1).

5. A vertical check valve according to claim 1, characterized in that: The support mechanism (3) comprises a support ring (35), wherein the support ring (35) is fixedly connected to the top of the support rod (21), and the top of the support ring (35) is preferably connected to a first support plate (31), and a second support plate (33) is fixedly connected to the surface of the first support plate (31), and the first support plate (31) and the second support plate (33) are both arranged in the check valve body (1).

6. A vertical check valve according to claim 5, characterized in that: A first positioning member (32) is fixedly connected to the top of the first support plate (31) and the second support plate (33), a second positioning member (34) is fixedly connected to the top of the first positioning member (32), and the second positioning member (34) is slidably connected to the top of the check valve body (1).

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