Anti-blocking and flow-keeping structure of hydraulic valve element

Abstract

The utility model discloses an anti-blocking and flow-keeping structure of a hydraulic valve core, which relates to the field of hydraulic valve cores and comprises a hydraulic valve body, connecting shells are fixedly mounted on two sides of the hydraulic valve body, the valve core body penetrates through the inner walls of the connecting shells, two clamping grooves are formed in one side of each connecting shell, a sealing plate is arranged on one side of each connecting shell, and the valve core body penetrates through the connecting shells. A main pump pressure body is fixedly installed on the other side of the sealing plate, and an oil inlet pipe is fixedly installed on the top of one side of the hydraulic valve body. The pulling plate is arranged, the hydraulic valve element can be rapidly disassembled, cleaned, maintained or replaced, the blocking phenomenon in subsequent use is avoided, the anti-blocking and flow-keeping effects are achieved, the intercepting plate and the filter element are arranged, oil used by the hydraulic valve element can be conveniently filtered, the blocking situation of oil in the use process of the hydraulic valve element is avoided, and the bolts are arranged, so that the use safety of the hydraulic valve element is improved. The intercepting plate and the filter element can be cleaned or replaced, so that the subsequent oil filtering quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve cores, in particular to a flow-preserving structure for preventing blockage of a hydraulic valve core. Background Art

[0002] The hydraulic valve core is the core component of the hydraulic valve. It realizes the operation of the hydraulic system by controlling parameters such as fluid flow, direction and pressure. The valve core plays a very important role in the hydraulic valve. Its quality and performance directly affect the service life and safety of the valve.

[0003] For example, publication number CN219317691U discloses a hydraulic valve core structure, including a valve body, an oil passage is provided inside the valve body, an oil inlet is provided on the upper side of the oil passage, an oil outlet 1 and an oil outlet 2 are provided on the lower side of the oil passage, a fine groove is provided on the lower side of the oil passage next to the oil outlet 2, a shaft column is fixed in the fine groove, air inlet holes are provided at both ends of the valve body, a valve core column is provided in the oil passage, a hollow area 1 and a hollow area 2 are provided at both ends of the valve core column, a stop column 1 and a stop column 2 are respectively inserted in the hollow area 1 and the hollow area 2, a rebound spring 1 and a rebound spring 2 are respectively sleeved on the outer sides of the stop column 1 and the stop column 2, and a cylindrical ring groove 1 and a cylindrical ring groove are provided on the side of the valve core column Second, a limit platform is fixed on the lower side of the valve core column next to the cylindrical ring groove 2, and a through hole is opened on the side of the limit platform. The hydraulic valve core structure can be axially aligned, and both ends of the valve core have a buffering capacity. However, there are other shortcomings in the use of the hydraulic valve core structure. First, the hydraulic valve core structure is fixed, and the hydraulic valve core cannot be quickly disassembled, cleaned, repaired or replaced, so that subsequent blockages cannot be repaired, and the oil enters directly through the oil pipe, and the oil used for the hydraulic valve core cannot be filtered, so that the impurity particles in the oil are easy to cause blockage during the use of the hydraulic valve core. Therefore, there are still certain shortcomings when using this device. Utility Model Content

[0004] The utility model aims to provide a hydraulic valve core anti-blocking and flow-preserving structure to solve the problem raised in the above-mentioned background technology that when the valve core in the current market is in use, the hydraulic valve core structure is fixed, and the hydraulic valve core cannot be quickly disassembled, cleaned, repaired or replaced, so that subsequent blockages cannot be repaired, and the oil directly enters through the oil pipe, and the oil used for the hydraulic valve core cannot be filtered, so that foreign particles in the oil can easily cause blockage during the use of the hydraulic valve core.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow-preserving structure for a hydraulic valve core, comprising a hydraulic valve body, a connecting shell is fixedly installed on both sides of the hydraulic valve body, a valve core body is penetrated through the inner wall of the connecting shell, two slots are provided on one side of the connecting shell, a sealing plate is provided on one side of the connecting shell, a main pump pressure body is fixedly installed on the other side of the sealing plate, and an oil inlet pipe is fixedly installed on the top of one side of the hydraulic valve body;

[0006] A clamping plate is fixedly installed on the front and rear sides of the sealing plate, a through hole is opened inside the clamping plate, a clamping rod passes through the through hole, a pull plate is fixedly installed on one side of the clamping rod, and two springs are fixedly connected to one side of the pull plate;

[0007] The inner wall of the oil inlet pipe is provided with a movable plate, a cavity is opened inside the movable plate, an interception plate is fixedly installed on the inner wall of the cavity, a filter element is fixedly connected to the bottom of the interception plate and the bottom end passes through the hydraulic valve body.

[0008] Furthermore, a slide groove is provided on the inner wall of one side of the oil inlet pipe, and a groove is provided on the other side of the oil inlet pipe, and the oil inlet pipe is communicated with the hydraulic valve body.

[0009] Furthermore, a sliding rod is fixedly installed on one side of the movable plate and one end is inserted into the sliding groove, a fixed rod is fixedly installed on the other side of the movable plate and one end passes through the groove, a fixed plate is fixedly installed on the other side of the fixed rod, a sealing gasket is fixedly connected to one side of the fixed plate, connecting plates are fixedly installed on the front and rear sides of the top of the fixed plate, and bolts pass through the inside of the connecting plate.

[0010] Furthermore, the main pump pressure body is detachably connected to the connecting shell via a sealing plate, and the connecting shell and the hydraulic valve body are integrated.

[0011] Furthermore, the clamping rod and the through hole are movably connected, and the central axis of the clamping rod coincides with the central axis of the clamping slot.

[0012] Furthermore, the movable plate and the oil inlet pipe are detachably connected, and the movable plate and the cavity are integrated.

[0013] Furthermore, the interception plate and the cavity are sleeve-connected, and the interception plate and the filter element are communicated.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The anti-blocking and flow-preserving structure of the hydraulic valve core can quickly disassemble, clean, repair or replace the hydraulic valve core by setting a pull plate, so as to avoid blockage in subsequent use, thereby having an anti-blocking and flow-preserving effect, and an interception plate and a filter element are provided to facilitate filtering the oil used in the hydraulic valve core, so as to avoid blockage of the oil during the use of the hydraulic valve core, and bolts are provided to clean or replace the interception plate and the filter element, so as to improve the quality of subsequent oil filtration. The specific contents are as follows:

[0016] 1. A pull plate is provided. By manually pulling each pull plate outward, each pull plate drives the clamping rod to move outward through the corresponding through hole, so that each clamping rod is separated from the clamping groove and squeezes the spring at the same time, so that the sealing plate connected to the main pump pressure body is moved outward to separate from the hydraulic valve body, and then the valve core body is manually disassembled, cleaned, repaired or replaced, which is convenient for quick disassembly, cleaning, repair or replacement of the hydraulic valve core, avoiding blockage in subsequent use, thereby having the effect of preventing blockage and maintaining flow;

[0017] 2. An interception plate and a filter element are provided. The oil enters the oil inlet pipe and passes through the interception plate, so that the interception plate separates the larger particles in the oil, and the separated oil enters the filter element. The filter element is a polyester fiber filter element, which has a high filtering efficiency and good particle capture ability, and can effectively remove impurities and suspended matter in the oil. The oil after multiple filtrations enters the hydraulic valve body for use by the valve core body, so that the filtered oil is not easy to cause clogging of the hydraulic valve core during use, thereby increasing the anti-clogging and flow-preserving effect of the hydraulic valve core;

[0018] Furthermore, bolts are provided, and the bolts are manually pulled out of the connecting plate, and then the fixed plate is manually driven to drive the fixed rod to move upward in the groove, so that the fixed rod drives the sliding rod connected to the movable plate to slide upward in the sliding groove, and the movable plate drives the filter element connected to the intercepting plate to enter the oil pipe upward in sequence, and the intercepting plate and the filter element can be cleaned or replaced, thereby improving the quality of subsequent oil filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the hydraulic valve body and the valve core body of the utility model;

[0021] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the partial structure of the main pump body of the utility model;

[0023] Figure 5 This is a schematic diagram of the partial structure of the oil inlet pipe of the utility model from a top view;

[0024] Figure 6 This is a schematic diagram of the local structure of the movable plate of the utility model;

[0025] Figure 7 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. hydraulic valve body; 2. connecting shell; 3. valve core body; 4. slot; 5. sealing plate; 6. main pump pressure body; 7. clamping plate; 8. through hole; 9. clamping rod; 10. pull plate; 11. spring; 12. oil inlet pipe; 13. slide groove; 14. groove; 15. movable plate; 16. cavity; 17. intercepting plate; 18. filter element; 19. slide rod; 20. fixing rod; 21. fixing plate; 22. sealing gasket; 23. connecting plate; 24. bolt. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0029] Embodiment 1: In order to solve the problem that the valve core on the market is fixed when in use, the hydraulic valve core cannot be quickly disassembled, cleaned, repaired or replaced, so that subsequent blockage cannot be repaired, and the oil directly enters through the oil pipe, the oil used for the hydraulic valve core cannot be filtered, and the impurity particles in the oil are easy to cause blockage during the use of the hydraulic valve core. Figure 1 -Attached Figure 4 and attached Figure 7, including a hydraulic valve body 1, a connecting shell 2 is fixedly installed on both sides of the hydraulic valve body 1, a valve core body 3 is penetrated through the inner wall of the connecting shell 2, two card slots 4 are opened on one side of the connecting shell 2, a sealing plate 5 is arranged on one side of the connecting shell 2, a main pump pressure body 6 is fixedly installed on the other side of the sealing plate 5, and an oil inlet pipe 12 is fixedly installed on the top of one side of the hydraulic valve body 1; a card plate 7 is fixedly installed on the front and rear sides of the sealing plate 5, a through hole 8 is opened inside the card plate 7, a card rod 9 is penetrated inside the through hole 8, a pull plate 10 is fixedly installed on one side of the card rod 9, and two springs 11 are fixedly connected to one side of the pull plate 10; the main pump pressure body 6 is disassembled and connected to the connecting shell 2 through the sealing plate 5, and the connecting shell 2 and the hydraulic valve body 1 are integrated. The card rod 9 and the through hole 8 are movably connected, and the card rod 9 coincides with the central axis of the card slot 4. By manually pulling each pull plate 10 outward, each pull plate 10 drives the clamping rod 9 to move outward through the corresponding through hole 8, so that each clamping rod 9 disengages from the clamping slot 4 and squeezes the spring 11, so that the sealing plate 5 connected to the main pump pressure body 6 is moved outward to separate from the hydraulic valve body 1, and then the valve core body 3 is manually disassembled, cleaned, repaired or replaced, which is convenient for quick disassembly, cleaning, repair or replacement of the hydraulic valve core to avoid blockage in subsequent use, thereby having the effect of preventing blockage and maintaining flow.

[0030] Embodiment 2: In order to filter and prevent the oil used in the hydraulic valve core, please refer to the attached Figure 1 -Attached Figure 3 and attached Figure 5 -Attached Figure 6, a movable plate 15 is provided on the inner wall of the oil inlet pipe 12, a cavity 16 is provided inside the movable plate 15, an interception plate 17 is fixedly installed on the inner wall of the cavity 16, a filter element 18 is fixedly connected to the bottom of the interception plate 17, and the bottom end of the filter element 18 passes through the hydraulic valve body 1. A slide groove 13 is provided on the inner wall of one side of the oil inlet pipe 12, and a groove 14 is provided on the other side of the oil inlet pipe 12, and the oil inlet pipe 12 and the hydraulic valve body 1 are connected. A slide rod 19 is fixedly installed on one side of the movable plate 15, and one end is inserted into the slide groove 13, a fixed rod 20 is fixedly installed on the other side of the movable plate 15, and one end passes through the groove 14, and a fixed plate 21 is fixedly installed on the other side of the fixed rod 20, and a sealing gasket 22 is fixedly connected to one side of the fixed plate 21, and a connecting plate 23 is fixedly installed on the front and rear sides of the top of the fixing plate 21, and a bolt 24 passes through the inside of the connecting plate 23. The movable plate 15 and the oil inlet pipe 12 are detachably connected, and the movable plate 15 and the cavity 16 are integrated. The interception plate 17 and the cavity 16 are sleeve-connected, and the interception plate 17 and the filter element 18 are communicated. By setting the interception plate 17 and the filter element 18, the oil passes through the interception plate 17 through the oil inlet pipe 12, so that the interception plate 17 separates the larger particles in the oil, and the separated oil enters the filter element 18. The filter element 18 is set to be a polyester fiber filter element, which has a high filtering efficiency and a good particle capture ability, and can effectively remove impurities, suspended matter, etc. in the oil, so that the oil after multiple filtrations enters the hydraulic valve body 1 for use by the valve core body 3, so that the filtered oil is not easy to be blocked during the use of the hydraulic valve core, thereby increasing the anti-blocking and flow-keeping effect of the hydraulic valve core. After the interception plate 17 and the filter element 18 have been used for a period of time, the bolts 24 are manually pulled out of the connecting plate 23, and then the fixed plate 21 is manually driven to move the fixed rod 20 upward in the groove 14, so that the fixed rod 20 drives the sliding rod 19 connected to the movable plate 15 to slide upward in the slide groove 13, so that the movable plate 15 drives the filter element 18 connected to the interception plate 17 to enter the oil pipe 12 upward in sequence, and the interception plate 17 and the filter element 18 can be cleaned or replaced to improve the quality of subsequent oil filtration.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow-preserving structure for a hydraulic valve core, comprising a hydraulic valve body (1), a connecting shell (2) being fixedly mounted on both sides of the hydraulic valve body (1), a valve core body (3) penetrating the inner wall of the connecting shell (2), two slots (4) being provided on one side of the connecting shell (2), a sealing plate (5) being provided on one side of the connecting shell (2), a main pump body (6) being fixedly mounted on the other side of the sealing plate (5), and an oil inlet pipe (12) being fixedly mounted on the top of one side of the hydraulic valve body (1); Features: A clamping plate (7) is fixedly mounted on both the front and rear sides of the sealing plate (5); a through hole (8) is provided inside the clamping plate (7); a clamping rod (9) runs through the inside of the through hole (8); a pull plate (10) is fixedly mounted on one side of the clamping rod (9); and two springs (11) are fixedly connected to one side of the pull plate (10); The inner wall of the oil inlet pipe (12) is provided with a movable plate (15), a cavity (16) is provided inside the movable plate (15), an interception plate (17) is fixedly installed on the inner wall of the cavity (16), a filter element (18) is fixedly connected to the bottom of the interception plate (17), and the bottom end of the interception plate (17) passes through the hydraulic valve body (1).

2. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 1, characterized in that: A sliding groove (13) is provided on the inner wall of one side of the oil inlet pipe (12), and a groove (14) is provided on the other side of the oil inlet pipe (12); the oil inlet pipe (12) is communicated with the hydraulic valve body (1).

3. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 1, characterized in that: A sliding rod (19) is fixedly installed on one side of the movable plate (15) and one end of which is inserted into the sliding groove (13); a fixing rod (20) is fixedly installed on the other side of the movable plate (15) and one end of which passes through the groove (14); a fixing plate (21) is fixedly installed on the other side of the fixing rod (20); a sealing gasket (22) is fixedly connected to one side of the fixing plate (21); connecting plates (23) are fixedly installed on the front and rear sides of the top of the fixing plate (21); bolts (24) pass through the inside of the connecting plate (23).

4. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 1, characterized in that: The main pump pressure body (6) is detachably connected to the connection shell (2) via a sealing plate (5), and the connection shell (2) and the hydraulic valve body (1) are integrally arranged.

5. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 1, characterized in that: The clamping rod (9) and the through hole (8) are movably connected, and the central axis of the clamping rod (9) coincides with the central axis of the clamping slot (4).

6. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 2, characterized in that: The movable plate (15) and the oil inlet pipe (12) are detachably connected, and the movable plate (15) and the cavity (16) are integrally arranged.

7. The anti-blocking and flow-preserving structure of a hydraulic valve core according to claim 2, characterized in that: The interception plate (17) and the cavity (16) are sleeve-connected, and the interception plate (17) and the filter element (18) are in communication.

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