Plug-in mounting type hydraulic control one-way valve

Abstract

The utility model belongs to the technical field of one-way valves, and particularly relates to a plug-in mounting type hydraulic control one-way valve which comprises a valve body and a connecting pipeline, a valve cavity is formed in the valve body, a liquid inlet and a liquid outlet are formed in the two sides of the valve cavity respectively, and a piston channel is formed in the position, corresponding to the liquid inlet, of the surface of the valve body. A hydraulic control assembly is installed in the piston channel and comprises a piston body, a spring and a sealing cover. The piston main body abuts against the liquid inlet through the spring for sealing, liquid entering the piston channel can be isolated through the piston main body, rusting of the spring is reduced, when the liquid flows through the liquid inlet, the liquid pressure pushes the piston main body to slide to open the liquid inlet, and the liquid enters the valve cavity and is discharged through the liquid outlet. When the spring is aged and needs to be replaced, the sealing cover is detached, and the spring can be rapidly taken out and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a plug-in type hydraulically controlled one-way valve. Background Art

[0002] A one-way valve, also known as a check valve or a non-return valve, is used in hydraulic systems to prevent reverse flow of oil, or in pneumatic systems to prevent reverse flow of compressed air. A one-way valve allows fluid to only flow along the inlet, but the outlet medium cannot flow back. There are two types of one-way valves: straight-through and right-angle.

[0003] There are many types of such hydraulically controlled one-way valves on the market today, which can basically meet people's needs, but there are still certain shortcomings. The springs inside the existing hydraulically controlled one-way valves are easily rusted due to long-term contact with liquid, which shortens the service life.

[0004] The existing Chinese patent with the announcement number CN214788291U discloses a plug-in metal ring line sealed hydraulically controlled one-way valve, including a one-way valve body, a valve cavity, a valve core, a spring sleeve and a supporting spring. The one-way valve body is provided with a valve cavity inside, and a valve core is provided inside the valve cavity. A flow cavity is provided on the inner wall of the valve cavity outside the valve core, and a retaining ring is fixed on the outer wall of the valve core at the position of the flow cavity.

[0005] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device installs the spring inside a closed space, and after the spring ages, it is not convenient to replace it, and improvement is needed; therefore, a plug-in hydraulically controlled one-way valve is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a plug-in type hydraulically controlled one-way valve.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a plug-in type hydraulically controlled one-way valve, comprising a valve body and a connecting pipe, a valve cavity is provided inside the valve body, a liquid inlet and a liquid outlet are respectively provided on both sides of the valve cavity, a piston channel is provided on the surface of the valve body corresponding to the liquid inlet, a hydraulic control component is installed inside the piston channel, the hydraulic control component comprises a piston body, a spring and a sealing cover, the piston body is slidably installed at one end inside the piston channel, the sealing cover is fastened to one end outside the piston channel by bolts, the spring is installed inside the piston channel, the piston body is sealed against the liquid inlet by the spring, and the liquid entering the piston channel can be isolated by the piston body, thereby reducing rusting of the spring, when the liquid flows from the liquid inlet, the liquid pressure pushes the piston body to slide and open the liquid inlet, so that the liquid enters the valve cavity and is discharged from the liquid outlet, when the spring is aged and needs to be replaced, the sealing cover is removed to quickly take out and replace the spring.

[0008] Preferably, the spring is located between the piston body and the sealing cover.

[0009] Preferably, a connecting rod is fixedly connected at the center of the side wall of the piston body, and the connecting rod is located between the piston body and the sealing cover. The area of ​​the connecting rod located outside the piston channel may be provided with scale lines. By observing the scale lines, the position of the piston body and the opening and closing of the liquid inlet can be obtained, and the connecting rod plays a guiding role on the piston.

[0010] Preferably, the connecting rod passes through the sealing cover and extends to the outside.

[0011] Preferably, the ports of the liquid inlet and the liquid outlet are respectively fixedly connected with connecting joints, and connecting components are installed on the connecting joints and the connecting pipes.

[0012] Preferably, the connecting assembly includes a tapered channel and a tapered hot-melt joint, the tapered channel is installed inside the connecting joint, and the hot-melt joint is hot-melt installed at one end of the connecting pipe. When the valve body and the connecting pipe are assembled, the hot-melt joint is inserted into the interior of the tapered channel for interference fit to seal, and then the threaded cover is rotated to connect the threaded cover with the threaded ring, and the hot-melt joint is fixedly connected to the connecting joint to prevent the connecting pipe from falling off and achieve quick connection.

[0013] Preferably, a threaded ring is fixedly connected to the surface of the hot melt joint.

[0014] Preferably, the connection assembly further comprises an annular limiting layer and a threaded cover, wherein the limiting layer is fixedly mounted on the outer wall of the connection joint, and the threaded cover is slidably mounted on the outer side of the connection joint.

[0015] Preferably, a sealing ring is installed between the limiting layer and the threaded cover, and the sealing ring is sleeved on the outside of the connecting joint. When the threaded cover is connected to the threaded ring, the intersection of the threaded cover and the limiting ring is sealed by the sealing ring, thereby realizing double leakage prevention measures.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model seals the liquid inlet by pressing the piston body against the liquid inlet through the spring, and the piston body can isolate the liquid entering the piston channel to reduce the rust of the spring. When the liquid flows from the liquid inlet, the liquid pressure pushes the piston body to slide and open the liquid inlet, so that the liquid enters the valve cavity and is discharged from the liquid outlet. When the spring is aged and needs to be replaced, the sealing cover can be removed to quickly take out and replace the spring.

[0018] 2. The utility model seals by inserting the hot melt joint into the inner interference fit of the tapered channel, and then rotating the threaded cover to connect the threaded cover with the threaded ring, and fixing the hot melt joint with the connecting joint to prevent the connecting pipe from falling off, thereby achieving quick connection, and sealing the intersection of the threaded cover and the limit ring with a sealing ring, thereby achieving double leakage prevention measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0021] Figure 2 This is a cross-sectional view of the valve body of the utility model;

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

[0023] Figure 4 This is a schematic diagram of the structure of the hydraulic control component of the utility model;

[0024] Figure 5 This is a schematic diagram of the expanded structure of the connection component of the utility model.

[0025] In the figure: 1. valve body; 2. valve chamber; 3. liquid inlet; 4. liquid outlet; 5. piston channel; 6. hydraulic control component; 61. piston body; 62. spring; 63. sealing cover; 64. connecting rod; 7. connecting pipe; 8. connecting joint; 9. connecting assembly; 91. tapered channel; 92. hot melt joint; 93. threaded ring; 94. limiting layer; 95. threaded cover; 96. sealing ring. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1

[0028] See also Figure 1-4 As shown, a plug-in hydraulically controlled one-way valve comprises a valve body 1 and a connecting pipe 7. A valve cavity 2 is provided inside the valve body 1. A liquid inlet 3 and a liquid outlet 4 are provided on both sides of the valve cavity 2. A piston channel 5 is provided on the surface of the valve body 1 corresponding to the liquid inlet 3. A hydraulic control component 6 is installed inside the piston channel 5. The hydraulic control component 6 comprises a piston body 61, a spring 62 and a sealing cover 63. The piston body 61 is slidably installed at one end inside the piston channel 5. The sealing cover 63 is fastened to one end outside the piston channel 5 by bolts. The spring 62 is installed inside the piston channel 5. The piston body 61 is sealed against the liquid inlet 3 by the spring 62, and the liquid entering the piston channel 5 can be isolated by the piston body 61 to reduce the rust of the spring 62. When the liquid flows from the liquid inlet 3, the liquid pressure pushes the piston body 61 to slide and open the liquid inlet 3, so that the liquid enters the valve cavity 2 and is discharged from the liquid outlet 4. When the spring 62 is aged and needs to be replaced, the sealing cover 63 is removed to quickly take out and replace the spring 62.

[0029] The spring 62 is located between the piston body 61 and the sealing cover 63 .

[0030] A connecting rod 64 is fixedly connected to the center of the side wall of the piston body 61, and the connecting rod 64 is located between the piston body 61 and the sealing cover 63. The area where the connecting rod 64 is located outside the piston channel 5 can be provided with scale lines. By observing the scale lines, the position of the piston body 61 and the opening and closing status of the liquid inlet 3 can be obtained, and the connecting rod 64 plays a guiding role on the piston.

[0031] The connecting rod 64 penetrates the sealing cover 63 and extends to the outside.

[0032] Embodiment 2

[0033] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, the ports of the liquid inlet 3 and the liquid outlet 4 are respectively fixedly connected with connecting joints 8, and connecting components 9 are installed on the connecting joints 8 and the connecting pipe 7.

[0034] The connecting assembly 9 includes a tapered channel 91 and a tapered hot-melt joint 92. The tapered channel 91 is installed inside the connecting joint 8. The hot-melt joint 92 is hot-melt installed at one end of the connecting pipe 7. When the valve body 1 and the connecting pipe 7 are assembled together, the hot-melt joint 92 is inserted into the tapered channel 91 and the internal interference fit is used for sealing. Then, the threaded cover 95 is rotated to connect the threaded cover 95 with the threaded ring 93, and the hot-melt joint 92 is fixedly connected to the connecting joint 8 to prevent the connecting pipe 7 from falling off and realize quick connection.

[0035] A threaded ring 93 is fixedly connected to the surface of the hot melt joint 92 .

[0036] The connection assembly 9 further includes an annular limiting layer 94 and a threaded cover 95 . The limiting layer 94 is fixedly mounted on the outer wall of the connection joint 8 , and the threaded cover 95 is slidably mounted on the outer side of the connection joint 8 .

[0037] A sealing ring 96 is installed between the limiting layer 94 and the threaded cover 95. The sealing ring 96 is sleeved on the outside of the connecting joint 8. When the threaded cover 95 is connected to the threaded ring 93, the intersection of the threaded cover 95 and the limiting ring is sealed by the sealing ring 96, thereby realizing double leakage prevention measures.

[0038] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art.

[0039] Working principle: when the valve body 1 and the connecting pipe 7 are assembled, the hot melt joint 92 is inserted into the internal interference fit of the tapered channel 91 for sealing, and then the threaded cover 95 is rotated to connect the threaded cover 95 with the threaded ring 93, and the hot melt joint 92 is fixedly connected to the connecting joint 8 to prevent the connecting pipe 7 from falling off and realize quick connection. When the threaded cover 95 is connected to the threaded ring 93, the intersection of the threaded cover 95 and the limit ring is sealed by the sealing ring 96, thereby realizing double leakage prevention measures.

[0040] The piston body 61 is sealed against the liquid inlet 3 by the spring 62, and the piston body 61 can isolate the liquid entering the piston channel 5, reducing the rust of the spring 62. When the liquid flows from the liquid inlet 3, the liquid pressure pushes the piston body 61 to slide and open the liquid inlet 3, so that the liquid enters the valve cavity 2 and is discharged from the liquid outlet 4. By observing the scale line, the position of the piston body 61 and the opening and closing status of the liquid inlet 3 can be obtained. When the spring 62 is aged and needs to be replaced, the sealing cover 63 is removed to quickly take out and replace the spring 62.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A plug-in hydraulically controlled one-way valve, comprising a valve body (1) and a connecting pipe (7), characterized in that: The valve body (1) has a valve cavity (2) formed inside, and a liquid inlet (3) and a liquid outlet (4) are formed on both sides of the valve cavity (2). A piston channel (5) is formed on the surface of the valve body (1) corresponding to the liquid inlet (3). A hydraulic control component (6) is installed inside the piston channel (5). The hydraulic control component (6) comprises a piston body (61), a spring (62) and a sealing cover (63). The piston body (61) is slidably mounted on one end inside the piston channel (5), and the sealing cover (63) is fastened to one end outside the piston channel (5) by bolts. The spring (62) is installed inside the piston channel (5).

2. The cartridge type hydraulically controlled one-way valve according to claim 1, characterized in that: The spring (62) is located between the piston body (61) and the sealing cover (63).

3. The cartridge type hydraulically controlled one-way valve according to claim 1, characterized in that: A connecting rod (64) is fixedly connected to the center of the side wall of the piston body (61), and the connecting rod (64) is located between the piston body (61) and the sealing cover (63).

4. The cartridge type hydraulically controlled one-way valve according to claim 3, characterized in that: The connecting rod (64) passes through the sealing cover (63) and extends to the outside.

5. The cartridge type hydraulically controlled one-way valve according to claim 1, characterized in that: The ports of the liquid inlet (3) and the liquid outlet (4) are respectively fixedly connected with connecting joints (8), and connecting components (9) are installed on the connecting joint (8) and the connecting pipe (7).

6. The cartridge type hydraulically controlled one-way valve according to claim 5, characterized in that: The connection assembly (9) comprises a tapered channel (91) and a tapered hot-melt joint (92), wherein the tapered channel (91) is installed inside the connection joint (8), and the hot-melt joint (92) is hot-melt-installed at one end of the connection pipe (7).

7. The cartridge type hydraulically controlled one-way valve according to claim 6, characterized in that: A threaded ring (93) is fixedly connected to the surface of the hot melt joint (92).

8. The cartridge type hydraulically controlled one-way valve according to claim 6, characterized in that: The connection assembly (9) further comprises an annular limiting layer (94) and a threaded cover (95); the limiting layer (94) is fixedly mounted on the outer wall of the connection joint (8); and the threaded cover (95) is slidably mounted on the outer side of the connection joint (8).

9. The cartridge type hydraulically controlled one-way valve according to claim 8, characterized in that: A sealing ring (96) is installed between the limiting layer (94) and the threaded cover (95), and the sealing ring (96) is sleeved on the outside of the connecting joint (8).

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