Liquid inlet one-way valve with filtering function

Abstract

The utility model relates to the technical field of liquid inlet one-way valves, and discloses a liquid inlet one-way valve with a filtering function, which comprises a valve body, a filtering mechanism is fixedly connected in the valve body, and a dismounting mechanism is fixedly connected on the surface of the valve body. The pressing assembly comprises a first spring, the first spring is fixedly connected to the interior of the valve body, one end of the first spring is fixedly connected with a sliding block, the surface of the sliding block is fixedly connected with a supporting cylinder, a conical cylinder is arranged in the supporting cylinder, and a filter screen plate is fixedly connected to the interior of the conical cylinder; and a sealing ring is arranged in the left end of the conical barrel. According to the liquid inlet one-way valve with the filtering function, the filtering net plate can be cleaned through the arranged filtering mechanism, in addition, when fluid circulates in the valve body, the fluid collides with the supporting barrel and is limited and supported by the sliding block, then the tight attaching effect on the conical barrel can be kept at any time, and therefore the filtering effect is improved. And the situation that the sealing performance in the device is poor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid inlet one-way valves, in particular to a liquid inlet one-way valve with a filtering function. Background Art

[0002] In the hydraulic system, the inlet check valve prevents the reverse flow of oil and avoids excessive system pressure. It cooperates with the throttle valve or other valves to form an actuator to prevent reaction. In addition, check valves have different types and forms, such as manual control, spring type, pneumatic type, hydraulic type, hydraulic type and electromagnetic type, etc., to meet the needs of different application scenarios.

[0003] According to patent number CN 218377843 U, a hydraulic one-way valve with a filtering structure is disclosed. A liquid inlet cavity and a liquid outlet cavity are respectively arranged inside the valve body, and the cavity diameter of the liquid outlet cavity is larger than the cavity diameter of the liquid inlet cavity. A filtering mechanism is detachably installed at the liquid inlet of the liquid inlet cavity, a liquid outlet is opened on one side of the liquid outlet cavity, and an adjusting block is installed inside the liquid outlet cavity. One side of the adjusting block is connected to the threaded rotating rod, and the other side of the adjusting block is connected to the inner side of the movable groove through a spring.

[0004] The hydraulic one-way valve with a filtering structure can filter impurities in the oil through the filter during its use, and the hollow cylinder can be taken out regularly to replace the filter to prevent the filter from being blocked. However, when installing the filter, it is not convenient to maintain a close fit between the filter and the inside of the equipment, which may result in poor sealing. Therefore, the device needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid inlet one-way valve with a filtering function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a liquid inlet one-way valve with filtering function, comprising a valve body, a filtering mechanism is fixedly connected inside the valve body, and a disassembly mechanism is fixedly connected on the surface of the valve body;

[0007] The filtering mechanism comprises a pressing assembly and a locking assembly, wherein the locking assembly is arranged on the top of the pressing assembly;

[0008] The pressing assembly includes a first spring, which is fixedly connected to the inside of the valve body, one end of the first spring is fixedly connected to a slider, the surface of the slider is fixedly connected to a support cylinder, a conical cylinder is arranged inside the support cylinder, a filter screen is fixedly connected inside the conical cylinder, a sealing ring is arranged inside the left end of the conical cylinder, and the left end of the sealing ring is fixedly connected to a supporting outer ring.

[0009] Preferably, a conical hole is opened inside the support tube, and the surface of the conical tube fits tightly with the inside of the conical hole, so as to facilitate the use of the close fit between the conical tube and the conical hole to perform a sealing effect on the device.

[0010] Preferably, a slide groove is provided inside the valve body, the surface of the slider is slidably connected to the inside of the slide groove, a sealing groove is provided at the left end of the conical cylinder, and the surface of the sealing ring is tightly fitted to the inside of the sealing groove.

[0011] Preferably, the positioning assembly includes a socket, which is fixedly connected to the top of the valve body, a T-block is inserted into the socket, a second spring is fixedly connected to the inside of the T-block, one end of the second spring is fixedly connected to a T-bar, one side of the T-bar is fixedly connected to a clamping strip, a guide groove is provided inside the T-block, the surface of the T-bar is slidably connected to the inside of the guide groove, and the left end of the T-block is fixedly connected to the top of the right side of the support outer ring.

[0012] Preferably, the inside of the holder is provided with an oblique tooth groove, the surface of the clamping strip is provided with an inclined surface, the oblique tooth groove matches the inclined surface, and the conical tube can be conveniently installed by utilizing the clamping strip and the inside of the oblique clamping groove.

[0013] Preferably, the disassembly and assembly mechanism includes an L-shaped right plate, the L-shaped right plate is fixedly connected to the surface of the valve body, an L-shaped left plate is arranged at the left end of the L-shaped right plate, a mounting shell is fixedly connected to the side of the L-shaped left plate, a bolt is arranged inside the L-shaped left plate, a nut is threadedly connected to the surface of the bolt, the left end of the first spring is fixedly connected to the left end of the first spring, and the surface of the nut is threadedly connected to the inside of the L-shaped right plate.

[0014] Preferably, the four right corners of the installation shell are provided with limiting holes, and the surface of the clamping shaft is slidably connected with the inside of the limiting hole, so that the clamping shaft is easily clamped into the inside of the limiting hole, thereby facilitating the installation and fixation of the installation shell.

[0015] Compared with the prior art, the utility model provides a liquid inlet one-way valve with filtering function, which has the following beneficial effects:

[0016] 1. The liquid inlet one-way valve with filtering function moves the T-shaped block and drives the supporting outer ring to move through the provided filtering mechanism, so that the conical cylinder and the filter screen plate can be taken out, and the filter screen plate can be disassembled, and then the filter screen plate can be cleaned. In addition, when the fluid flows inside the valve body, the fluid hits the supporting cylinder and uses the limiting support of the slider, so that the conical cylinder can be kept in close contact at all times, avoiding the situation of poor sealing inside the device.

[0017] 2. The liquid inlet one-way valve with filtering function, through the provided disassembly and assembly mechanism, when the filter screen needs to be cleaned accordingly, the bolts are removed and the L-shaped left plate and the L-shaped right plate are separated, and then the mounting shell is moved and its interior is separated from the clamping shaft surface, and then the mounting shell can be removed from the valve body, and the locking fixation of the filter screen can be released, so as to facilitate the next step of disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 This is a three-dimensional split cross-sectional view of the press-fit assembly of the utility model;

[0021] Figure 3 This is a three-dimensional split cross-sectional view of the clamping assembly of the utility model;

[0022] Figure 4 This is a three-dimensional split cross-sectional view of the disassembly and assembly mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional cross-sectional view of the valve body of the utility model.

[0024] In the figure: 1. valve body; 2. filtering mechanism; 21. pressing assembly; 211. first spring; 212. sliding block; 213. supporting cylinder; 214. filtering screen; 215. conical cylinder; 216. sealing ring; 217. supporting outer ring; 22. positioning assembly; 221. clamping seat; 222. T-shaped block; 223. second spring; 224. T-shaped strip; 225. clamping strip; 3. disassembly and assembly mechanism; 31. L-shaped right plate; 32. L-shaped left plate; 33. mounting shell; 34. bolt; 35. clamping shaft; 36. nut. DETAILED DESCRIPTION

[0025] 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.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] Embodiment 1

[0029] Combination Figures 2 to 5 , a liquid inlet one-way valve with filtering function, comprising a valve body 1, a filtering mechanism 2 is fixedly connected inside the valve body 1, and a disassembly mechanism 3 is fixedly connected on the surface of the valve body 1;

[0030] The filter mechanism 2 includes a pressing assembly 21 and a locking assembly 22, wherein the locking assembly 22 is arranged on the top of the pressing assembly 21;

[0031] The pressing assembly 21 includes a first spring 211, which is fixedly connected to the inside of the valve body 1. A slider 212 is fixedly connected to one end of the first spring 211. A support cylinder 213 is fixedly connected to the surface of the slider 212. A conical cylinder 215 is arranged inside the support cylinder 213. A filter screen 214 is fixedly connected to the inside of the conical cylinder 215. A sealing ring 216 is arranged inside the left end of the conical cylinder 215. A support outer ring 217 is fixedly connected to the left end of the sealing ring 216. A slide groove is provided inside the valve body 1. The surface of the slider 212 is slidably connected to the inside of the slide groove. A sealing groove is provided at the left end of the conical cylinder 215. The surface of the sealing ring 216 fits tightly with the inside of the sealing groove.

[0032] Furthermore, the positioning assembly 22 includes a holder 221, the holder 221 is fixedly connected to the top of the valve body 1, a T-shaped block 222 is inserted inside the holder 221, a second spring 223 is fixedly connected inside the T-shaped block 222, one end of the second spring 223 is fixedly connected to a T-shaped bar 224, one side of the T-shaped bar 224 is fixedly connected to a clamping bar 225, a guide groove is provided inside the T-shaped block 222, the surface of the T-shaped bar 224 is slidably connected to the inside of the guide groove, the left end of the T-shaped block 222 is fixedly connected to the top of the right side of the support outer ring 217, and an oblique tooth groove is provided inside the holder 221 The surface of the card strip 225 is provided with an inclined surface, and the inclined tooth groove matches the inclined surface. The T-shaped block 222 is moved and drives the supporting outer ring 217 to move, so that the conical cylinder 215 and the filter screen plate 214 can be taken out, and the filter screen plate 214 can be disassembled, and then the filter screen plate 214 can be cleaned. In addition, when the fluid flows inside the valve body 1, the fluid hits the supporting cylinder 213 and uses the limiting support of the slider 212, so that the conical cylinder 215 can be kept in close contact at all times to avoid the situation where the sealing inside the device is poor.

[0033] Embodiment 2

[0034] See also Figure 1-5 On the basis of the first embodiment, the disassembly and assembly mechanism 3 further comprises an L-shaped right plate 31, the L-shaped right plate 31 is fixedly connected to the surface of the valve body 1, an L-shaped left plate 32 is arranged at the left end of the L-shaped right plate 31, a mounting shell 33 is fixedly connected to the side of the L-shaped left plate 32, a bolt 34 is arranged inside the L-shaped left plate 32, a nut 36 is threadedly connected to the surface of the bolt 34, a first spring 211 is fixedly connected at the left end, a clamping shaft 35 is fixedly connected to the left end of the first spring 211, and the surface of the nut 36 is threadedly connected to the inside of the L-shaped right plate 31.

[0035] Furthermore, limiting holes are provided at the four right corners of the installation shell 33, and the surface of the clamping shaft 35 is slidably connected with the inside of the limiting holes. When the filter screen plate 214 needs to be cleaned accordingly, the bolt 34 is removed and the L-shaped left plate 32 and the L-shaped right plate 31 are separated. Then, the installation shell 33 is moved and its interior is separated from the surface of the clamping shaft 35. After that, the installation shell 33 can be removed from the valve body 1, and the locking fixation of the filter screen plate 214 can be released, which facilitates the next step of disassembly.

[0036] In actual operation, when the device is used, the fluid enters the interior through the right side of the valve body 1 for circulation, and the impurities in the fluid are filtered accordingly through the action of the filter screen plate 214. In addition, when the filter screen plate 214 needs to be cleaned accordingly, the bolts 34 are removed and the L-shaped left plate 32 and the L-shaped right plate 31 are separated. Then, the mounting shell 33 is moved and its interior is separated from the surface of the clamping shaft 35. Then, the mounting shell 33 can be removed from the valve body 1, and the locking and fixing of the filter screen plate 214 can be released, so as to facilitate the next step of disassembly.

[0037] When disassembling, the T-shaped bar 224 is moved to drive the card bar 225 to disengage from the meshing position on the surface of the card seat 221, and then the T-shaped block 222 is moved to drive the supporting outer ring 217 to move, so that the conical cylinder 215 and the filter screen plate 214 can be taken out, and the filter screen plate 214 can be disassembled, and then the filter screen plate 214 can be cleaned. In addition, when the fluid flows inside the valve body 1, the fluid hits the supporting cylinder 213 and uses the limiting support of the slider 212, so that the conical cylinder 215 can be kept in close contact at all times.

[0038] 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 liquid inlet one-way valve with filtering function, comprising a valve body (1), characterized in that: The valve body (1) has a filtering mechanism (2) fixedly connected inside, and a disassembly mechanism (3) fixedly connected on the surface of the valve body (1); The filtering mechanism (2) comprises a pressing assembly (21) and a locking assembly (22), wherein the locking assembly (22) is arranged on the top of the pressing assembly (21); The pressing assembly (21) comprises a first spring (211), the first spring (211) being fixedly connected to the inside of the valve body (1), one end of the first spring (211) being fixedly connected to a slider (212), the surface of the slider (212) being fixedly connected to a support cylinder (213), a conical cylinder (215) being arranged inside the support cylinder (213), a filter screen (214) being fixedly connected inside the conical cylinder (215), a sealing ring (216) being arranged inside the left end of the conical cylinder (215), and a supporting outer ring (217) being fixedly connected to the left end of the sealing ring (216).

2. The liquid inlet one-way valve with filtering function according to claim 1, characterized in that: A conical hole is provided inside the support tube (213), and the surface of the conical tube (215) fits tightly with the inside of the conical hole.

3. The liquid inlet one-way valve with filtering function according to claim 1, characterized in that: A sliding groove is provided inside the valve body (1), the surface of the sliding block (212) is slidably connected to the inside of the sliding groove, a sealing groove is provided at the left end of the conical cylinder (215), and the surface of the sealing ring (216) is tightly fitted to the inside of the sealing groove.

4. The liquid inlet one-way valve with filtering function according to claim 1, characterized in that: The clamping assembly (22) comprises a clamping seat (221), the clamping seat (221) being fixedly connected to the top end of the valve body (1), a T-shaped block (222) being inserted into the clamping seat (221), a second spring (223) being fixedly connected to the inside of the T-shaped block (222), one end of the second spring (223) being fixedly connected to a T-shaped bar (224), one side of the T-shaped bar (224) being fixedly connected to a clamping bar (225), a guide groove being provided inside the T-shaped block (222), a surface of the T-shaped bar (224) being slidably connected to the inside of the guide groove, and a left end of the T-shaped block (222) being fixedly connected to the top end of the right side of the supporting outer ring (217).

5. The liquid inlet one-way valve with filtering function according to claim 4, characterized in that: An oblique tooth groove is provided inside the clamping seat (221), and an inclined surface is provided on the surface of the clamping strip (225), wherein the oblique tooth groove matches the inclined surface.

6. The liquid inlet one-way valve with filtering function according to claim 1, characterized in that: The disassembly and assembly mechanism (3) comprises an L-shaped right plate (31), the L-shaped right plate (31) being fixedly connected to the surface of the valve body (1), an L-shaped left plate (32) being provided at the left end of the L-shaped right plate (31), a mounting housing (33) being fixedly connected to the side of the L-shaped left plate (32), a bolt (34) being provided inside the L-shaped left plate (32), a nut (36) being threadedly connected to the surface of the bolt (34), the first spring (211) being fixedly connected to the left end, a clamping shaft (35) being fixedly connected to the left end of the first spring (211), and a surface of the nut (36) being threadedly connected to the inside of the L-shaped right plate (31).

7. The liquid inlet one-way valve with filtering function according to claim 6, characterized in that: Limiting holes are provided at four right corners of the installation shell (33), and the surface of the clamping shaft (35) is slidably connected to the inside of the limiting holes.

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