Plug-in mounting type hydraulic control one-way valve convenient to mount

Abstract

The utility model relates to the technical field of hydraulic control one-way valves, and discloses a plug-in mounting type hydraulic control one-way valve convenient to mount, which comprises a shell, a liquid guide device is arranged in the shell, and the liquid guide device comprises a mounting part; the mounting part comprises a first baffle, a second baffle, a liquid guide pipe, a sealing ring, a sealing block, a mounting block, a sliding rod and a sleeve, the outer surface of the mounting block is fixedly connected with the inner wall of the shell, the sleeve slidably sleeves the outer surface of the sliding rod, and the top surface of the liquid guide pipe and the top surface of the sleeve are fixedly connected with the bottom surface of the mounting block. According to the plug-in mounting type hydraulic control one-way valve convenient to mount, by arranging a clamping block, a mounting plate, a bolt, a second spring and a clamping rod, after the mounting part is mounted, the clamping rod moves rightwards through the elastic force of the second spring, the mounting block is positioned, the mounting plate is mounted on the shell through the bolt, the mounting block is clamped through the clamping block, and the mounting block is prevented from rotating; and the situation that the sealing performance of the device is reduced due to rotation of the mounting block due to vibration during use is prevented.

Description

Technical Field

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

[0002] The hydraulically controlled one-way valve is a type of directional control valve. The hydraulically controlled one-way valve relies on controlling the fluid pressure to make the one-way valve flow in the reverse direction. This valve occupies a relatively important position in the hydraulic support equipment of coal mine machinery. The difference between the hydraulically controlled one-way valve and the ordinary one-way valve is that the hydraulically controlled one-way valve has an additional control oil circuit. When the control oil circuit is not connected to the pressurized oil, the hydraulically controlled one-way valve works like an ordinary one-way valve. The pressurized oil only flows from the oil inlet to the oil outlet and cannot flow in the reverse direction. When the control oil circuit has control pressure input, the piston push rod moves to the right under the action of the pressurized oil, and the push rod is used to push open the one-way valve, so that the inlet and outlet oil ports are connected. If the oil outlet is larger than the oil inlet, the oil can flow in the reverse direction.

[0003] In the prior art, cartridge-type hydraulically controlled one-way valves generally use a threaded connection to achieve installation of the one-way valve.

[0004] However, there are still some disadvantages: the threaded connection method may loosen due to vibration during use, which will reduce the sealing performance of the device and have a certain impact on the normal use of the device. To this end, we have proposed an easy-to-install plug-in hydraulic control check valve to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a plug-in hydraulically controlled one-way valve that is easy to install, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a plug-in hydraulically controlled one-way valve that is easy to install, comprising a housing, a liquid guide device disposed inside the housing, and the liquid guide device comprising a mounting portion;

[0007] The mounting portion includes a first baffle, a second baffle, a liquid guide tube, a sealing ring, a sealing block, a mounting block, a sliding rod and a sleeve, wherein the outer surface of the mounting block is fixedly connected to the inner wall of the shell, the sleeve is slidably sleeved on the outer surface of the sliding rod, the top surface of the liquid guide tube and the top surface of the sleeve are both fixedly connected to the bottom surface of the mounting block, the bottom surface of the sliding rod is fixedly connected to the top surface of the sealing block, the outer surface of the sealing ring is fixedly connected to the inner wall of the liquid guide tube, the outer surface of the first baffle is fixedly connected to the inner wall of the shell, and the second baffle is fixedly sleeved on the outer surface of the liquid guide tube;

[0008] The upper portion of the housing is provided with a positioning portion;

[0009] The positioning part includes a mounting plate, a clamping rod and a bolt. A clamping groove is provided on the outer surface of the mounting block. The mounting plate is sleeved on the outer surface of the bottom end of the bolt. The thread on the outer surface of the bottom end of the bolt passes through the top surface of the shell and extends to the inside of the shell. A sliding groove is provided on the top surface of the shell, and the clamping rod is arranged inside the sliding groove.

[0010] A further improvement is that the mounting part also includes a first sealing ring, a second sealing ring, a first spring, a third sealing ring and an adjusting block. The first sealing ring is sleeved on the outside of the liquid guide tube, the top surface of the first sealing ring is in compression contact with the top surface of the mounting block, and the bottom surface of the first sealing ring is in compression contact with the inner wall of the shell. By setting the first sealing ring, it is convenient to seal the top of the device.

[0011] A further improvement is that the bottom surface of the second sealing ring is in extrusion contact with the top surface of the first baffle, and the top surface of the second sealing ring is in extrusion contact with the bottom surface of the second baffle. By arranging the second sealing ring, the first baffle and the second baffle, the outside of the catheter is blocked.

[0012] A further improvement is that the outer surface of the adjusting block is slidably connected to the inner wall of the shell, and the top of the adjusting block extends to the inside of the liquid guide tube. By setting the adjusting block and controlling the upward movement of the adjusting block, the sealing block is pushed upward, and the liquid can be discharged from the lower left through hole and introduced from the upper part of the shell.

[0013] A further improvement is that a ring groove is provided on the outer surface of the adjustment block, the third sealing ring is arranged inside the ring groove, and the outer surface of the third sealing ring is in extrusion contact with the inner wall of the shell. By providing the third sealing ring, the sealing performance between the outer surface of the adjustment block and the inner wall of the shell is improved.

[0014] A further improvement is that the positioning part also includes a clamping block and a second spring, the outer surface of the clamping block is fixedly connected to the inner wall of the mounting plate, the outer surface of the clamping block extends into the inside of the clamping slot and is clamped with the inner wall of the clamping slot, and the positioning of the mounting block is facilitated by arranging the clamping block, the mounting plate and the bolt.

[0015] A further improvement is that the right end of the second spring is fixedly connected to the left end face of the card rod, the left end of the second spring is fixedly connected to the inner wall of the shell, the right end of the card rod extends to the inside of the left card slot and is engaged with the inner wall of the mounting block. By setting the second spring and the card rod, the elastic force of the second spring is utilized to limit the mounting block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the plug-in type hydraulically controlled one-way valve, which is easy to install, is provided with a clamping block, a mounting plate, a bolt, a second spring and a clamping rod. After the mounting portion is installed, the elastic force of the second spring is used to move the clamping rod to the right to position the mounting block. The mounting plate is installed on the housing by the bolt. The clamping block is used to clamp the mounting block to prevent the mounting block from rotating. This prevents the mounting block from rotating due to vibration during use, thereby reducing the sealing performance of the device. The liquid guide tube, the sealing ring, the sealing block, the mounting block, the first sealing ring, the first spring, the sliding rod, the sleeve, the third sealing ring and the adjusting block are provided. The elastic force of the first spring is used to seal the outer surface of the sealing block with the inner wall of the sealing ring, so that liquid enters from the lower left through-hole and is discharged from the upper left through-hole. Liquid is introduced from the lower part of the housing, and the adjusting block is moved upward to push the sealing block upward, thereby realizing reverse conduction of the liquid passage. The first baffle, the second sealing ring and the second baffle are provided. The second sealing ring is used to block the outer side of the liquid guide tube, thereby facilitating the control of one-way flow of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a sectional view of the three-dimensional structure of the liquid guiding device of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0020] Figure 4 for Figure 2 A magnified view of the structure at point B in the middle;

[0021] Figure 5 for Figure 2 Enlarged view of the structure at point C in the middle.

[0022] In the figure: 1 housing, 2 liquid guiding device, 21 mounting portion, 22 positioning portion, 211 liquid guiding tube, 212 sealing ring, 213 sealing block, 214 mounting block, 215 first sealing ring, 216 first baffle, 217 second sealing ring, 218 second baffle, 219 first spring, 210 sliding rod, 201 sleeve, 202 third sealing ring, 203 adjusting block, 221 clamping block, 222 mounting plate, 223 bolt, 224 second spring, 225 clamping rod. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a plug-in hydraulic control one-way valve that is easy to install, comprising a housing 1, a liquid guide device 2 is provided inside the housing 1, and the liquid guide device 2 includes a mounting portion 21;

[0025] The mounting portion 21 includes a first baffle 216, a second baffle 218, a liquid guiding tube 211, a sealing ring 212, a sealing block 213, a mounting block 214, a sliding rod 210 and a sleeve 201. The outer surface of the mounting block 214 is fixedly connected to the inner wall of the housing 1. The sleeve 201 is slidably sleeved on the outer surface of the sliding rod 210. The top surfaces of the liquid guiding tube 211 and the top surfaces of the sleeve 201 are both fixedly connected to the bottom surface of the mounting block 214. The bottom surface of the sliding rod 210 is fixedly connected to the top surface of the sealing block 213. The outer surface of the sealing ring 212 is fixedly connected to the inner wall of the liquid guiding tube 211. The outer surface of the first baffle 216 is fixedly connected to the inner wall of the housing 1. The second baffle 218 is fixedly sleeved on the outer surface of the liquid guiding tube 211. The mounting portion 21 also includes a first sealing ring 215, a second sealing ring 217, a first spring 219, a third sealing ring 202 and an adjusting block 203.

[0026] The bottom surface of the second sealing ring 217 is in press contact with the top surface of the first baffle 216, and the top surface of the second sealing ring 217 is in press contact with the bottom surface of the second baffle 218. By providing the first baffle 216, the second sealing ring 217 and the second baffle 218, the second sealing ring 217 is used to block the outer side of the liquid guide tube 211, thereby facilitating the one-way flow of liquid.

[0027] The first sealing ring 215 is sleeved on the outside of the liquid guiding tube 211. The top surface of the first sealing ring 215 is in press contact with the top surface of the mounting block 214, and the bottom surface of the first sealing ring 215 is in press contact with the inner wall of the housing 1.

[0028] The outer surface of the regulating block 203 is slidably connected to the inner wall of the shell 1, and the top of the regulating block 203 extends to the inside of the liquid guide tube 211. The outer surface of the regulating block 203 is provided with an annular groove, and the third sealing ring 202 is arranged inside the annular groove. The outer surface of the third sealing ring 202 is in squeeze contact with the inner wall of the shell 1. By arranging the liquid guide tube 211, the sealing ring 212, the sealing block 213, the mounting block 214, the first sealing ring 215, the first spring 219, the sliding rod 210, the sleeve 201, the third sealing ring 202 and the regulating block 203, the elastic force of the first spring 219 is utilized to seal the outer surface of the sealing block 214 with the inner wall of the sealing ring 212, so that the liquid enters from the lower left through hole and is discharged from the upper left through hole. The liquid is introduced from the lower part of the shell 1, the regulating block 210 moves upward, and the sealing block 213 is pushed upward, so that the liquid passage can be reversely conducted.

[0029] A positioning portion 22 is provided on the upper portion of the housing 1;

[0030] The positioning portion 22 includes a mounting plate 222, a clamping rod 225, and a bolt 223. A clamping groove is formed on the outer surface of the mounting block 214. The mounting plate 222 is sleeved on the outer surface of the bottom end of the bolt 223. The outer surface of the bottom end of the bolt 223 has a thread that penetrates the top surface of the housing 1 and extends into the interior of the housing 1. A sliding groove is formed on the top surface of the housing 1. The clamping rod 225 is disposed inside the sliding groove. The positioning portion 22 also includes a clamping block 221 and a second spring 224.

[0031] The right end of the second spring 224 is fixedly connected to the left end surface of the clamping rod 225, and the left end of the second spring 224 is fixedly connected to the inner wall of the housing 1. The right end of the clamping rod 225 extends into the inside of the left clamping slot and is clamped to the inner wall of the mounting block 214;

[0032] The outer surface of the clamping block 221 is fixedly connected to the inner wall of the mounting plate 222, and the outer surface of the clamping block 221 extends to the inside of the clamping slot and is clamped with the inner wall of the clamping slot. By setting the clamping block 221, the mounting plate 222, the bolt 223, the second spring 224 and the clamping rod 225, after the mounting part 21 is installed, the elastic force of the second spring 224 is used to move the clamping rod 225 to the right to position the mounting block 214, and the mounting plate 222 is installed on the shell 1 using the bolt 223, and the mounting block 214 is clamped by the clamping block 221 to prevent the mounting block 214 from rotating, and to prevent the mounting block 214 from rotating due to vibration during use, so as to reduce the sealing performance of the device.

[0033] During use, liquid enters from the lower left through-hole, and the liquid pushes the sealing block 213 upward and is discharged from the upper left through-hole. When the liquid enters from the upper left through-hole, high-pressure liquid is introduced from the lower part of the shell 1, and the high-pressure liquid pushes the regulating block 203 to move upward, and the regulating block 203 pushes the sealing block 213 to move upward, so that the liquid can be discharged from the lower left through-hole.

[0034] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug-in hydraulically controlled one-way valve that is easy to install, comprising a housing (1), characterized in that: A liquid guiding device (2) is provided inside the housing (1), and the liquid guiding device (2) comprises a mounting portion (21); The mounting portion (21) includes a first baffle (216), a second baffle (218), a liquid guiding tube (211), a sealing ring (212), a sealing block (213), a mounting block (214), a sliding rod (210) and a sleeve (201), wherein the outer surface of the mounting block (214) is fixedly connected to the inner wall of the shell (1), the sleeve (201) is slidably sleeved on the outer surface of the sliding rod (210), the top surface of the liquid guiding tube (211) and the top surface of the sleeve (201) are both fixedly connected to the bottom surface of the mounting block (214), the bottom surface of the sliding rod (210) is fixedly connected to the top surface of the sealing block (213), the outer surface of the sealing ring (212) is fixedly connected to the inner wall of the liquid guiding tube (211), the outer surface of the first baffle (216) is fixedly connected to the inner wall of the shell (1), and the second baffle (218) is fixedly sleeved on the outer surface of the liquid guiding tube (211); A positioning portion (22) is provided on the upper portion of the housing (1); The positioning portion (22) includes a mounting plate (222), a clamping rod (225) and a bolt (223); a clamping groove is provided on the outer surface of the mounting block (214); the mounting plate (222) is sleeved on the outer surface of the bottom end of the bolt (223); a thread on the outer surface of the bottom end of the bolt (223) passes through the top surface of the shell (1) and extends into the interior of the shell (1); a slide groove is provided on the top surface of the shell (1), and the clamping rod (225) is arranged inside the slide groove.

2. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 1, characterized in that: The mounting portion (21) further comprises a first sealing ring (215), a second sealing ring (217), a first spring (219), a third sealing ring (202) and an adjusting block (203), wherein the first sealing ring (215) is sleeved on the outside of the liquid guide tube (211), the top surface of the first sealing ring (215) is in press-contact with the top surface of the mounting block (214), and the bottom surface of the first sealing ring (215) is in press-contact with the inner wall of the housing (1).

3. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 2, characterized in that: The bottom surface of the second sealing ring (217) is in press contact with the top surface of the first baffle (216), and the top surface of the second sealing ring (217) is in press contact with the bottom surface of the second baffle (218).

4. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 2, characterized in that: The outer surface of the regulating block (203) is slidably connected to the inner wall of the shell (1), and the top end of the regulating block (203) extends to the interior of the liquid guiding tube (211).

5. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 2, characterized in that: An annular groove is provided on the outer surface of the regulating block (203), the third sealing ring (202) is arranged inside the annular groove, and the outer surface of the third sealing ring (202) is in compression contact with the inner wall of the housing (1).

6. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 1, characterized in that: The positioning portion (22) further comprises a clamping block (221) and a second spring (224); the outer surface of the clamping block (221) is fixedly connected to the inner wall of the mounting plate (222); and the outer surface of the clamping block (221) extends into the interior of the clamping slot and is clamped to the inner wall of the clamping slot.

7. The easy-to-install cartridge-type hydraulically controlled one-way valve according to claim 6, characterized in that: The right end of the second spring (224) is fixedly connected to the left end face of the clamping rod (225), the left end of the second spring (224) is fixedly connected to the inner wall of the housing (1), and the right end of the clamping rod (225) extends into the inside of the left clamping slot and is clamped to the inner wall of the mounting block (214).

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