Leak-proof hydraulic valve element

Abstract

The utility model relates to the technical field of hydraulic valve elements, and discloses a leakproof hydraulic valve element which comprises a valve element pipe, a pressing pipe is fixedly connected to the middle of the surface of the valve element pipe, springs are connected to the periphery of the inner wall of the pressing pipe, a baffle is connected to the top ends of the springs, a sliding plate is fixedly connected to the inner wall of the baffle, and the sliding plate is fixedly connected to the valve element pipe. A first connecting plate is slidably connected to the left side of the surface of the sliding plate, first sliding rods are fixedly connected to the left side and the right side of the top of the first connecting plate, a second connecting plate is slidably connected to the surfaces of the first sliding rods, and second sliding rods are fixedly connected to the left side and the right side of the top of the second connecting plate. According to the utility model, the plurality of layers of second connecting plates are slidably blocked in the gap with the hydraulic valve, so that the gaps with different sizes can be sealed, and the device has lower manufacturing process requirements, so that the device has lower manufacturing and using cost, the interval between the hydraulic valve and the valve core can be reduced in a manner of reducing the cost, and the service life of the hydraulic valve is prolonged. And therefore, the oil leakage amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve cores, in particular to a leakage-proof hydraulic valve core. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressure oil of a pressure regulating valve and is usually used in combination with an electromagnetic pressure regulating valve. It can be used to remotely control the on / off of oil, gas and water pipeline systems in hydropower stations. The valve core is one of the components of the hydraulic valve. In order to reduce oil leakage, the gap between the valve core and the hydraulic cylinder is generally small, but there are still some problems.

[0003] For example, the patent document with the announcement number CN216479259U discloses: "A hydraulic valve core, belonging to the field of hydraulic valve technology, includes a valve cylinder, a turning handle and a support rod, the turning handle is fixedly connected to the top of the support rod, and the support rod is connected to the valve cylinder through and through, the right side of the valve cylinder is connected through a connecting pipe, the lower end of the valve cylinder is connected through a branch pipe, the bottom of the branch pipe is fixedly connected with a bolt, the bottom of the bolt is fixedly connected with a threaded rod, the inside of the valve cylinder is fixedly connected with two card plates, the inside of the valve cylinder is provided with a valve core, and the top of the valve core is fixedly connected to the bottom of the support rod by screws, and the valve core is connected to the two The middle part of the block card is connected through the structure. The hydraulic valve core is improved in structure, so that when the device is actually used, it is not necessary to disassemble the entire hydraulic valve before replacing it, thereby facilitating the replacement of the valve core, and when the valve core is installed later, it is not necessary to oil its surface, thus saving the use of lubricating oil. Through the improvement of structure, the device is actually used, so that when the device is actually used, it is not necessary to disassemble the entire hydraulic valve before replacing it, thereby facilitating the replacement of the valve core, and when the valve core is installed later, it is not necessary to oil its surface, thus saving the use of lubricating oil.

[0004] However, when the valve cylinder and branch pipe of the above-mentioned device are in use, it is difficult to achieve zero gap between them with the existing technology, which leads to the oil leaking out easily from the gap between them. The components with better process and less oil leakage have higher manufacturing costs, resulting in higher cost of using the hydraulic valve. Therefore, a hydraulic valve with reduced oil leakage is needed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a leakage-proof hydraulic valve core to solve the problem of high manufacturing cost of components with better process and less oil leakage proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution, disclosing a leakage-proof hydraulic valve core, including: a valve core tube, a pressure tube is fixedly connected to the middle part of the surface of the valve core tube, springs are connected to the four sides of the inner wall of the pressure tube, a baffle is connected to the top of the spring, a sliding plate is fixedly connected to the inner wall of the baffle, a first connecting plate is slidably connected to the left side of the surface of the sliding plate, a first sliding rod is fixedly connected to the left and right sides of the top of the first connecting plate, a second connecting plate is slidably connected to the surface of the first sliding rod, and a second sliding rod is fixedly connected to the left and right sides of the top of the second connecting plate.

[0007] As a preferred technical solution of the utility model, a connecting ring is fixedly connected to the front side of the valve core tube surface, and a first pressure ring is fixedly connected to the front end of the valve core tube.

[0008] As a preferred technical solution of the utility model, the tail side of the valve core tube surface is fixedly connected with a rotating shaft, the tail end of the rotating shaft is fixedly connected with a screw, and the inner wall of the screw is fixedly connected to the inner wall of the valve core tube.

[0009] As a preferred technical solution of the utility model, a second pressure ring is fixedly connected to the tail end of the surface of the valve core tube, and a pull rod is fixedly connected to the tail end of the valve core tube.

[0010] As a preferred technical solution of the utility model, the left and right sides of the second sliding rod are fixedly connected with limiting plates, the horizontal cross-section of the second sliding rod and the second connecting plate is circular, and the material of the second connecting plate is rubber.

[0011] As a preferred technical solution of the utility model, the radius of the first pressure ring is the same as that of the second pressure ring, and the radius of the first pressure ring and the second pressure ring is larger than the radius of the valve core tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model uses a second connecting plate in combination, and the multi-layer second connecting plates can be slidably blocked in the gap with the hydraulic valve, and the baffle can be extended and retracted back and forth, so that it can close gaps of different sizes, and the manufacturing process requirements of this device are relatively low, so that the manufacturing and use costs of this device are relatively low, thereby reducing the distance between the hydraulic valve and the valve core while reducing costs, thereby reducing oil leakage.

[0014] 2. The utility model uses the first pressure ring and the second pressure ring in combination. The first pressure ring and the second pressure ring can be pushed by the spring to drive the valve core to move, thereby achieving the effect of facilitating the movement of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural stereogram of the utility model;

[0016] Figure 2 This is a structural stereogram of the baffle of the utility model;

[0017] Figure 3 It is a structural stereogram of the second connecting plate of the utility model;

[0018] Figure 4 This is a structural distribution diagram of the valve core tube of the utility model;

[0019] Figure 5 This is a structural distribution diagram of the pull rod of the utility model.

[0020] In the figure: 1. valve core tube; 2. pressure tube; 3. spring; 4. baffle; 5. sliding plate; 6. first connecting plate; 7. first slide rod; 8. second connecting plate; 9. second slide rod; 10. connecting ring; 11. first pressure ring; 12. rotating shaft; 13. screw; 14. second pressure ring; 15. pull rod; 16. limit plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 , Figure 2 and Figure 4 , a leak-proof hydraulic valve core:

[0023] It includes: a valve core tube 1, a pressure tube 2 is fixedly connected to the middle of the surface of the valve core tube 1, springs 3 are connected to the four sides of the inner wall of the pressure tube 2, a baffle 4 is connected to the top of the spring 3, a sliding plate 5 is fixedly connected to the inner wall of the baffle 4, a first connecting plate 6 is slidably connected to the left side of the surface of the sliding plate 5, a first sliding rod 7 is fixedly connected to the left and right sides of the top of the first connecting plate 6, a second connecting plate 8 is slidably connected to the surface of the first sliding rod 7, and a second sliding rod 9 is fixedly connected to the left and right sides of the top of the second connecting plate 8.

[0024] When the valve core is used through this device, due to the gap between the hydraulic valve core and the hydraulic valve, the spring 3 pushes the baffle 4, thereby pushing the baffle 4 and pressing it against the inner wall of the hydraulic valve, and then the valve core tube 1 is rotated, so that the first connecting plate 6 is affected by gravity, and the sliding plate 5 drives the first connecting plate 6 to slide down, so that the first connecting plate 6 drives the second connecting plate 8 on the top to slide, and the second connecting plate 8 is restricted by the second sliding rod 9 and slides, so that the first connecting plate 6 and the second connecting plate 8 cannot be separated. At this time, the second connecting plate 8 blocks the gap between the hydraulic valve core and the hydraulic valve, thereby reducing the gap and reducing the oil leakage.

[0025] See also Figure 1 and Figure 5 A connecting ring 10 is fixedly connected to the front side of the surface of the valve core tube 1, a first pressure ring 11 is fixedly connected to the front end of the valve core tube 1, a rotating shaft 12 is fixedly connected to the rear side of the surface of the valve core tube 1, a screw 13 is fixedly connected to the rear end of the rotating shaft 12, and the inner wall of the screw 13 is fixedly connected to the inner wall of the valve core tube 1, a second pressure ring 14 is fixedly connected to the rear end of the surface of the valve core tube 1, and a pull rod 15 is fixedly connected to the rear end of the valve core tube 1.

[0026] When the valve core is used by this device, the first external spring is sleeved on the surface of the valve core tube 1, and the first external spring is placed in front of the second pressure ring 14, and then the second external spring is sleeved in front of the first pressure ring 11, so that the first pressure ring 11 and the second pressure ring 14 can resist the external spring to facilitate the forward and backward movement of the valve core. When installing the screw rod 13, the screw rod 13 can be rotated and installed in the hydraulic valve by rotating the screw rod 13.

[0027] See also Figure 3 The left and right sides of the second slide bar 9 are fixedly connected with the limiting plates 16. The horizontal cross-section of the second slide bar 9 and the second connecting plate 8 is circular, and the material of the second connecting plate 8 is rubber.

[0028] When the second connecting plate 8 is slid by this device, the limiting plate 16 limits the second slide bar 9, making it difficult for the second connecting plate 8 to slide out of the baffle 4, thereby facilitating the normal use of this device.

[0029] Working principle: two sets of external springs are installed in front of the first pressure ring 11 and the second pressure ring 14, and the external springs are sleeved on the surface of the valve core tube 1. By turning the screw 13, the valve core is rotated and installed in the hydraulic valve, so that the two external springs can move the valve core tube 1 back and forth. When the valve core needs to be pulled out, the pull rod 15 provides a force point to facilitate the hand to pull the valve core tube 1. When the hydraulic valve core is installed in the hydraulic valve, the spring 3 pushes the baffle 4 so that the baffle 4 is against the inner wall of the hydraulic valve, and then the valve core tube 1 is rotated, so that the second connecting plate 8 and the second sliding rod 9 slide down when rotated by gravity, so that the second connecting plate 8 blocks the gap between the hydraulic valve and the valve core, thereby reducing the gap between the hydraulic valve and the valve core, and then reducing the leakage of liquid oil.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A leak-proof hydraulic valve core, comprising: A valve core tube (1), characterized in that: a pressure tube (2) is fixedly connected to the middle of the surface of the valve core tube (1), springs (3) are connected to the four sides of the inner wall of the pressure tube (2), the top of the spring (3) is connected to a baffle (4), the inner wall of the baffle (4) is fixedly connected to a sliding plate (5), the left side of the surface of the sliding plate (5) is slidably connected to a first connecting plate (6), the left and right sides of the top of the first connecting plate (6) are fixedly connected to a first slide bar (7), the surface of the first slide bar (7) is slidably connected to a second connecting plate (8), and the left and right sides of the top of the second connecting plate (8) are fixedly connected to a second slide bar (9).

2. The anti-leakage hydraulic valve core according to claim 1, characterized in that: A connecting ring (10) is fixedly connected to the front side of the surface of the valve core tube (1), and a first pressing ring (11) is fixedly connected to the front end of the valve core tube (1).

3. The anti-leakage hydraulic valve core according to claim 1, characterized in that: A rotating shaft (12) is fixedly connected to the rear side of the surface of the valve core tube (1), a screw rod (13) is fixedly connected to the rear end of the rotating shaft (12), and the inner wall of the screw rod (13) is fixedly connected to the inner wall of the valve core tube (1).

4. The anti-leakage hydraulic valve core according to claim 1, characterized in that: A second pressure ring (14) is fixedly connected to the tail end of the surface of the valve core tube (1), and a pull rod (15) is fixedly connected to the tail end of the valve core tube (1).

5. The anti-leakage hydraulic valve core according to claim 1, characterized in that: The left and right sides of the second sliding rod (9) are fixedly connected to the limiting plates (16); the horizontal cross-sections of the second sliding rod (9) and the second connecting plate (8) are circular; and the second connecting plate (8) is made of rubber.

6. The anti-leakage hydraulic valve core according to claim 2, characterized in that: The radius of the first pressure ring (11) and the second pressure ring (14) are the same, and the radius of the first pressure ring (11) and the second pressure ring (14) are greater than the radius of the valve core tube (1).

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