High-precision large hydraulic valve

Abstract

The utility model discloses a high-precision large hydraulic valve which comprises a valve body assembly, and the valve body assembly comprises a shell. The protection assembly comprises a supporting plate, a supporting block, a connecting block, a fixed pipe, a telescopic spring, a movable pipe and a baffle; the supporting plates are fixedly connected to the two sides of the outer end of the shell, the supporting blocks are connected to the inner sides of the supporting plates and the inner sides of the baffles respectively, the connecting blocks are fixedly connected to the outer ends of the fixed pipe and the movable pipe respectively, the telescopic spring is fixedly connected to the interior of the fixed pipe, and the movable pipe is fixedly connected to the outer end of the telescopic spring. The high-precision large hydraulic valve solves the problems that when an existing high-precision large hydraulic valve is used, due to the fact that high precision needs to be kept in the hydraulic valve, when the hydraulic valve collides with the outside, parts in the hydraulic valve can be shaken and collided, the parts in the hydraulic valve can be damaged seriously, and the precision and the function of the hydraulic valve are affected.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a high-precision large-scale hydraulic valve. Background Art

[0002] A hydraulic valve is an automatic component operated by pressure 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 the oil, gas, and water pipeline systems of a hydropower station. High-precision large hydraulic valves are a type of hydraulic valve.

[0003] However, it still has the following disadvantages in actual use:

[0004] When the existing high-precision large hydraulic valves are in use, since the internal part of the hydraulic valve needs to maintain high precision, when the hydraulic valve collides with the outside world, it will cause shaking and collision to the internal parts of the hydraulic valve, seriously causing damage to the internal parts of the hydraulic valve, affecting the accuracy and function of the hydraulic valve.

[0005] Therefore, a new high-precision large hydraulic valve is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-precision large-scale hydraulic valve to solve the problem raised in the above-mentioned background technology that when the existing high-precision large-scale hydraulic valve is in use, since the internal part of the hydraulic valve needs to maintain high precision, when the hydraulic valve collides with the outside world, it will cause shaking and collision to the internal parts of the hydraulic valve, seriously causing damage to the internal parts of the hydraulic valve, thereby affecting the accuracy and function of the hydraulic valve.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a high-precision large hydraulic valve, comprising:

[0009] A valve body assembly, the valve body assembly comprising a housing;

[0010] A protection assembly, the protection assembly comprising a support plate, a support block, a connecting block, a fixed tube, a telescopic spring, a movable tube and a baffle;

[0011] The support plate is fixedly connected to the two sides of the outer end of the shell, the support blocks are respectively connected to the inner side of the support plate and the inner side of the baffle, the connecting blocks are respectively fixedly connected to the outer ends of the fixed tube and the movable tube, the telescopic spring is fixedly connected to the inner position of the fixed tube, and the movable tube is fixedly connected to the outer end of the telescopic spring.

[0012] Furthermore, the valve body assembly also includes an ejector pin and an oil hole;

[0013] The ejector pins are sleeved at two sides of the shell, and the oil hole is opened at the upper end of the shell.

[0014] Furthermore, the baffle is located outside the shell, and the front end of the movable tube is located inside the front end of the fixed tube.

[0015] Furthermore, a rotating shaft is provided inside the supporting block, and a hollow structure is provided at the outer end of the connecting block, and the connecting block is rotatably connected to a position inside the supporting block.

[0016] Furthermore, it also includes a movable assembly, which includes a pulley, a fixed column, a fixed bolt, a fixed plate and a movable column;

[0017] The pulley is rotatably connected to the inner position of the outer end of the support plate, the fixed column is rotatably connected to the outer position of the pulley, the fixing bolt is threadedly connected to the outer end position of the fixing column, the fixing plate is fixedly connected to the outer end position of the fixing column, and the movable column passes through the central position of the fixing plate and extends to both sides.

[0018] Furthermore, the outer surface of the movable column is provided with scale lines, and the outer surface of the fixed column is provided with a threaded structure corresponding to the fixing bolt.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The utility model provides a protection component. When the hydraulic valve collides with the outside world, the baffle plate contacts the outside world first and moves inward. When the baffle plate moves inward, it drives the movable tube to move inward and drives the telescopic spring to be compressed. The telescopic spring generates a reverse elastic force on the movable tube, causing the movable tube to generate an outward thrust on the baffle plate, thereby reducing the collision force and realizing protection of the hydraulic valve.

[0021] 2. Based on the first beneficial effect, a movable component is set up, and when the fixed column is moved, the fixed plate drives the movable column to move. When the movable column and the valve core correspond, an inward force is applied to the movable column, so that the movable column drives the valve core to move, thereby measuring the stroke of the valve core and avoiding failure of the hydraulic valve caused by long-term use.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0024] Figure 1 This is the front view of the utility model;

[0025] Figure 2 This is a structural diagram of the valve body assembly of the utility model;

[0026] Figure 3 This is a structural diagram of the protective component of the utility model;

[0027] Figure 4 This is a structural diagram of the active components of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 11. Shell; 12. Ejector pin; 13. Oil hole; 21. Support plate; 22. Support block; 23. Connecting block; 24. Fixed pipe; 25. Telescopic spring; 26. Movable pipe; 27. Baffle; 31. Pulley; 32. Fixed column; 33. Fixed bolt; 34. Fixed plate; 35. Movable column. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-3 As shown, this embodiment is a high-precision large hydraulic valve, comprising:

[0035] A valve body assembly, the valve body assembly includes a housing 11;

[0036] A protection assembly, which includes a support plate 21, a support block 22, a connecting block 23, a fixed tube 24, a telescopic spring 25, a movable tube 26 and a baffle 27;

[0037] The support plate 21 is fixedly connected to both sides of the outer end of the shell 11, the support block 22 is respectively connected to the inner side of the support plate 21 and the inner side of the baffle 27, the connection block 23 is respectively fixedly connected to the outer ends of the fixed tube 24 and the movable tube 26, the telescopic spring 25 is fixedly connected to the inner position of the fixed tube 24, and the movable tube 26 is fixedly connected to the outer end of the telescopic spring 25;

[0038] The support plate 21 is used to support the support block 22, the support block 22 is used to support the connection block 23, the connection block 23 is used to support the fixed tube 24 and the movable tube 26 respectively, the movable tube 26 is used to move under the drive of the baffle 27, the baffle 27 is used to contact with the outside world, and the telescopic spring 25 is used to generate elastic force;

[0039] The valve body assembly also includes a ejector pin 12 and an oil hole 13;

[0040] The ejector pin 12 is sleeved on both sides of the housing 11, and the oil hole 13 is opened at the upper end of the housing 11;

[0041] The baffle 27 is located outside the housing 11, and the front end of the movable tube 26 is located inside the front end of the fixed tube 24;

[0042] When the movable tube 26 moves toward the inside of the fixed tube 24, the telescopic spring 25 can be compressed to generate elastic force;

[0043] The support block 22 has a rotating shaft inside, and the outer end of the connecting block 23 is provided with a hollow structure, and the connecting block 23 is rotatably connected to the inner position of the support block 22;

[0044] The connecting block 23 can rotate inside the supporting block 22, and drive the fixed tube 24 and the movable tube 26 to rotate;

[0045] Working principle: When external objects collide with the shell 11, the baffle 27 comes into contact with the outside world, the baffle 27 moves inward and drives the support block 22 and the connecting block 23 to move inward, the connecting block 23 drives the movable tube 26 to move inward, the movable tube 26 moves inward and drives the telescopic spring 25 to be compressed to generate elastic force, the telescopic spring 25 generates elastic force to apply an outward force to the movable tube 26 to weaken the collision force, and when the baffle 27 moves inward, the movable tube 26 and the fixed tube 24 rotate under the drive of the connecting block 23, so that the movable tube 26 and the fixed tube 24 always remain in a straight line.

[0046] See also Figure 4 As shown, this embodiment is based on the above embodiment and also includes:

[0047] A movable assembly, the movable assembly includes a pulley 31, a fixing column 32, a fixing bolt 33, a fixing plate 34 and a movable column 35;

[0048] The pulley 31 is rotatably connected to the inner position of the outer end of the support plate 21, the fixed column 32 is rotatably connected to the outer position of the pulley 31, the fixing bolt 33 is threadedly connected to the outer end position of the fixing column 32, the fixing plate 34 is fixedly connected to the outer end position of the fixing column 32, and the movable column 35 passes through the central position of the fixing plate 34 and extends to both sides;

[0049] The pulley 31 is used to drive the fixed column 32 to move, the fixed column 32 is used to drive the fixed plate 34 to move, the fixed plate 34 is used to support the movable column 35, the movable column 35 is used to contact the inside of the housing 11, and the fixing bolt 33 is used to limit the fixed column 32;

[0050] The outer surface of the movable column 35 is provided with scale lines, and the outer surface of the fixed column 32 has a threaded structure corresponding to the fixing bolt 33;

[0051] When the movable column 35 moves inward, the moving distance of the movable column 35 can be measured by the scale lines on the outer surface of the movable column 35;

[0052] Working principle: After the hydraulic valve is cleaned and repaired, the fixing bolt 33 is screwed outward and a downward force is applied to the fixing column 32, so that the fixing column 32 moves downward along the support plate 21 driven by the pulley 31, and the fixing plate 34 moves downward under the drive of the fixing column 32. When the movable column 35 moves to correspond to the valve core, the fixing bolt 33 is screwed inward to fix the fixing column 32. At this time, an inward thrust is applied to the movable column 35, so that the movable column 35 pushes the valve core inward. The moving distance of the movable column 35 can be judged according to the scale lines on the outer surface of the movable column 35, and the stroke of the valve core can be measured. By comparing the stroke of the valve core with the set stroke, installation errors can be prevented.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. High-precision large hydraulic valve, characterized by: include: A valve body assembly, the valve body assembly comprising a housing (11); A protection assembly, the protection assembly comprising a support plate (21), a support block (22), a connection block (23), a fixed tube (24), a telescopic spring (25), a movable tube (26) and a baffle (27); The support plate (21) is fixedly connected to positions on both sides of the outer end of the shell (11); the support block (22) is respectively connected to the inner side of the support plate (21) and the inner side of the baffle (27); the connection block (23) is respectively fixedly connected to the outer ends of the fixed tube (24) and the movable tube (26); the telescopic spring (25) is fixedly connected to the inner position of the fixed tube (24); and the movable tube (26) is fixedly connected to the outer end of the telescopic spring (25).

2. The high-precision large hydraulic valve according to claim 1, characterized in that: The valve body assembly also includes a ejector pin (12) and an oil hole (13); The ejector pin (12) is sleeved on both sides of the housing (11), and the oil hole (13) is opened at the upper end of the housing (11).

3. The high-precision large hydraulic valve according to claim 1, characterized in that: The baffle (27) is located outside the housing (11), and the front end of the movable tube (26) is located inside the front end of the fixed tube (24).

4. The high-precision large hydraulic valve according to claim 1, characterized in that: The support block (22) has a rotating shaft inside, and a hollow structure is provided at the outer end of the connection block (23), and the connection block (23) is rotatably connected to a position inside the support block (22).

5. The high-precision large hydraulic valve according to claim 1, characterized in that: It also includes a movable assembly, which includes a pulley (31), a fixing column (32), a fixing bolt (33), a fixing plate (34) and a movable column (35); The pulley (31) is rotatably connected to the inner position of the outer end of the support plate (21), the fixed column (32) is rotatably connected to the outer position of the pulley (31), the fixing bolt (33) is threadedly connected to the outer end position of the fixing column (32), the fixing plate (34) is fixedly connected to the outer end position of the fixing column (32), and the movable column (35) passes through the central position of the fixing plate (34) and extends to both sides.

6. The high-precision large hydraulic valve according to claim 5, characterized in that: The outer surface of the movable column (35) is provided with scale lines, and the outer surface of the fixed column (32) is provided with a threaded structure corresponding to the fixing bolt (33).

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