Hydraulic control valve

Abstract

The utility model discloses a hydraulic control valve, and belongs to the field of hydraulic control valves. Comprising a valve body and a hydraulic pressure gauge, and the two ends of the valve body communicate with connecting pipes correspondingly; a mounting plate is fixedly connected into the valve body, and a plurality of liquid outlet holes are uniformly formed in the mounting plate; a sliding groove is formed in the mounting plate; a sliding rod is installed on the sliding groove in a sliding mode, and the other end of the sliding rod is fixedly connected with a plugging block. A fixing plate is fixedly connected to the valve body, and an opening corresponding to the plugging block is formed in the fixing plate; the sliding rod is sleeved with a reset spring, and the reset spring is fixedly connected between the mounting plate and the plugging block. The hydraulic control valve further comprises a mounting groove, the mounting groove is formed in the valve body, and a driving assembly is arranged on the mounting box. The hydraulic control valve has the beneficial effect that the hydraulic control valve capable of adjusting pressure is provided.

Description

Technical Field

[0001] The present application relates to the field of hydraulic control valves, and in particular, to a hydraulic control valve. Background Art

[0002] Hydraulic control valve refers to the component used to control the pressure, flow and direction of the liquid in the hydraulic transmission system or hydraulic control system. The one that controls pressure is called pressure control valve, the one that controls flow is called flow control valve, and the one that controls on, off and flow direction is called directional control valve.

[0003] The structure of the product can refer to the one disclosed in Chinese patent document 201120175137.2, which can change the shut-off direction, including: a valve body, a valve cavity, a valve core and a pull rod located in the valve cavity, and a T oil port and a P oil port located on the upper part of the valve body and opening upward. The stop valve mechanism is composed of a sleeve, a spring located in the sleeve and a steel ball arranged on the spring, and is characterized in that: the pull rod is fixedly connected to the lower part of the sleeve as a whole, and the pull rod is located in the through groove; the change of the shut-off direction of the one-way valve is achieved by horizontal movement of the pull rod.

[0004] Although the direction can be changed in the above structure, the magnitude of the liquid pressure cannot be changed according to actual needs.

[0005] There is no hydraulic control valve with a variable pressure. Utility Model Content

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a hydraulic control valve, including: a valve body and a hydraulic gauge, wherein the two ends of the valve body are respectively connected with connecting pipes; and a mounting plate is fixedly connected in the valve body, and a plurality of liquid outlet holes are evenly provided on the mounting plate; a slide groove is provided on the mounting plate; a slide rod is slidably installed on the slide groove, and a blocking block is fixedly connected to the other end of the slide rod; a fixed plate is fixedly connected to the valve body, and an opening corresponding to the blocking block is provided on the fixed plate; a return spring is sleeved on the slide rod. , and a return spring is fixedly connected between the mounting plate and the blocking block; the hydraulic control valve also includes: a mounting groove, the mounting groove is opened on the valve body, and a mounting box is fixedly connected to the mounting groove, a threaded rod is rotatably installed between the left and right side plates of the mounting box, a movable plate is threadedly connected to the threaded rod, and an abutment block corresponding to the blocking block is fixedly connected to the bottom of the movable plate, and the abutment block contacts the inclined surface of the blocking block, a limit rod is fixedly connected between the left and right side plates of the mounting box, and the limit rod and the movable plate are slidably installed, and a driving assembly is arranged on the mounting box.

[0008] By setting a hydraulic gauge, the pressure in the valve body can be observed. When the pressure is too high, the threaded rod can be rotated by adjusting the assembly. At the same time, under the action of the limit rod, the movable plate moves to the left, thereby driving the abutment block to move to the left, thereby driving the blocking block to move to the left. When the blocking block moves to the left, the blocking area of ​​the opening blocked by the blocking block becomes smaller and smaller, so that more liquid flows in per unit time, thereby reducing the liquid pressure. At the same time, when the pressure needs to be increased, the threaded rod can be rotated in the opposite direction by driving the assembly.

[0009] Furthermore, the driving assembly includes a worm wheel, which is fixedly connected to the left end of the threaded rod. A rotating rod is rotatably installed on the top plate of the mounting box, and a worm is fixedly connected to the bottom of the rotating rod, and the worm is meshed with the worm wheel.

[0010] Furthermore, the blocking block is in the shape of a quadrangular pyramid, and the inner wall of the opening fits with the outer part of the blocking block.

[0011] Furthermore, the mounting plate is located on the left side of the fixing plate, the mounting box is located at the upper end of the valve body, and the mounting box is located between the mounting plate and the fixing plate.

[0012] Furthermore, the connecting pipes are respectively provided with internal threads.

[0013] Furthermore, the worm is located at the rear side of the worm wheel.

[0014] Furthermore, the limiting rod is located at the lower end of the threaded rod.

[0015] Furthermore, a sealing cover is fixedly connected to the top plate of the installation box, and the rotating rod passes through the sealing cover.

[0016] Furthermore, a knob is fixedly connected to the top of the rotating rod.

[0017] Furthermore, the knob is provided with anti-slip grooves.

[0018] The beneficial effect of the present application is that a hydraulic control valve for specifically adjusting pressure is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0020] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0021] In the attached picture:

[0022] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0023] Figure 2 is a cross-sectional view of an embodiment;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure;

[0025] Figure 4 It is a plan view;

[0026] Figure 5 yes Figure 2 Schematic diagram of the enlarged structure of A.

[0027] Reference numerals:

[0028] 1. Valve body; 2. Liquid outlet; 3. Turning rod; 4. Sealing cover; 5. Anti-skid pattern; 6. Knob; 7. Mounting box; 8. Moving plate; 9. Abutment block; 10. Opening; 11. Blocking block; 12. Sliding rod; 13. Reset spring; 14. Mounting plate; 15. Worm gear; 16. Internal thread; 17. Connecting pipe; 18. Hydraulic gauge; 19. Fixed plate; 20. Limiting rod; 21. Slide groove; 22. Worm; 23. Threaded rod; 24. Mounting groove. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0030] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] Reference Figure 2 A hydraulic control valve comprises: a valve body 1 and a hydraulic gauge 18, wherein both ends of the valve body 1 are connected with connecting pipes 17; the connecting pipes 17 are respectively provided with internal threads 16, and the internal threads 16 are provided to facilitate connection with other pipelines.

[0035] A mounting plate 14 is fixedly connected to the valve body 1, and a plurality of liquid outlet holes 2 are evenly provided on the mounting plate 14; a slide groove 21 is provided on the mounting plate 14; a slide rod 12 is slidably installed on the slide groove 21, and a blocking block 11 is fixedly connected to the other end of the slide rod 12; a fixing plate 19 is fixedly connected to the valve body 1, and an opening 10 corresponding to the blocking block 11 is provided on the fixing plate 19; the blocking block 11 is in the shape of a quadrangular pyramid, and the inner wall of the opening 10 fits with the outer surface of the blocking block 11; a return spring 13 is sleeved on the slide rod 12, and the return spring 13 is fixedly connected between the mounting plate 14 and the blocking block 11; the hydraulic control valve also includes: a mounting groove 24, and the mounting groove 24 is provided on the valve The valve body 1 is provided with a mounting box 7 fixedly connected to the mounting groove 24, a threaded rod 23 is rotatably installed between the left and right side plates of the mounting box 7, a movable plate 8 is threadedly connected to the threaded rod 23, and abutment blocks 9 corresponding to the blocking blocks 11 are fixedly connected to the bottom of the movable plate 8, and the abutment blocks 9 are in contact with the inclined surface of the blocking blocks 11, a limiting rod 20 is fixedly connected between the left and right side plates of the mounting box 7, and the limiting rod 20 is slidably installed with the movable plate 8, the mounting plate 14 is located on the left side of the fixed plate 19, the mounting box 7 is located at the upper end of the valve body 1, and the mounting box 7 is located between the mounting plate 14 and the fixed plate 19; the limiting rod 20 is located at the lower end of the threaded rod 23; a driving assembly is arranged on the mounting box 7.

[0036] Reference Figure 2 The connecting pipes 17 at both ends can be connected to the corresponding pipes through the internal threads 16. When the liquid enters the valve body 1 through the connecting pipe 17 at the right end, the blocking block 11 is pushed to the left under the action of the liquid pressure, so that the liquid enters the left end of the valve body 1 through the opening 10, and then flows out through the pipe at the left end through the liquid outlet 2. Under the action of the reset spring 13, the blocking block 11 is pushed to the right. The blocking block 11 is in the shape of a quadrangular pyramid and has a large area at the left end, which prevents backflow.

[0037] By setting up the hydraulic gauge 18, the pressure in the valve body 1 can be observed. When the pressure is too high, the threaded rod 23 can be rotated by adjusting the component. At the same time, under the action of the limit rod 20, the movable plate 8 moves to the left, thereby driving the abutment block 9 to move to the left, thereby driving the blocking block 11 to move to the left. When the blocking block 11 moves to the left, the blocking area of ​​the opening 10 blocked by the blocking block 11 becomes smaller and smaller, so that more and more liquid flows in per unit time, thereby reducing the liquid pressure. At the same time, when the pressure needs to be increased, the threaded rod 23 can be rotated in the opposite direction by driving the component.

[0038] Reference Figure 5The driving assembly includes a worm wheel 15, which is fixed to the left end of the threaded rod 23. A rotating rod 3 is rotatably mounted on the top plate of the installation box 7, and a worm 22 is fixed to the bottom of the rotating rod 3, which meshes with the worm wheel 15 and is located at the rear side of the worm wheel 15. A knob 6 is fixed to the top of the rotating rod 3, which facilitates the rotation of the rotating rod 3. The knob 6 is provided with anti-skid patterns 5, which further facilitate the rotation of the knob 6. A sealing cover 4 is fixed to the top plate of the installation box 7, and the rotating rod 3 passes through the sealing cover 4, which further has a sealing effect. The knob 6 is turned to rotate the rotating rod 3, thereby rotating the worm 22, and rotating the worm wheel 15. Since the worm wheel 15 is fixed to the threaded rod 23, the threaded rod 23 is rotated.

[0039] Working process: Refer to Figure 2 The connecting pipes 17 at both ends can be connected to the corresponding pipes through the internal threads 16. When the liquid enters the valve body 1 through the connecting pipe 17 at the right end, the blocking block 11 is pushed to the left under the action of the liquid pressure, so that the liquid enters the left end of the valve body 1 through the opening 10, and then flows out through the pipe at the left end through the liquid outlet 2. Under the action of the reset spring 13, the blocking block 11 is pushed to the right. The blocking block 11 is in the shape of a quadrangular pyramid and has a large area at the left end, which prevents backflow.

[0040] By setting a hydraulic gauge 18, the pressure in the valve body 1 can be observed. When the pressure is too high, the knob 6 is turned to rotate the rotating rod 3, thereby rotating the worm 22, and rotating the worm wheel 15. Since the worm wheel 15 is fixed to the threaded rod 23, the threaded rod 23 is rotated. At the same time, under the action of the limit rod 20, the movable plate 8 moves to the left, thereby driving the abutment block 9 to move to the left, thereby driving the blocking block 11 to move to the left. When the blocking block 11 moves to the left, the blocking area of ​​the opening 10 blocked by the blocking block 11 becomes smaller and smaller, so that more and more liquid flows in per unit time, thereby reducing the liquid pressure. At the same time, when the pressure needs to be increased, the knob 6 is turned in the opposite direction to finally cause the threaded rod 23 to rotate in the opposite direction.

[0041] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A hydraulic control valve, comprising: A valve body and a hydraulic gauge, wherein both ends of the valve body are connected with connecting pipes respectively; a mounting plate is fixedly connected in the valve body, and a plurality of liquid outlet holes are evenly provided on the mounting plate; a slide groove is provided on the mounting plate; a slide rod is slidably installed on the slide groove, and a blocking block is fixedly connected to the other end of the slide rod; a fixing plate is fixedly connected to the valve body, and an opening corresponding to the blocking block is provided on the fixing plate; a return spring is sleeved on the slide rod, and the return spring is fixedly connected between the mounting plate and the blocking block; Features: The hydraulic control valve further comprises: An installation groove is provided on the valve body, and an installation box is fixedly connected to the installation groove, a threaded rod is rotatably installed between the left and right side plates of the installation box, a movable plate is threadedly connected to the threaded rod, and an abutment block corresponding to the blocking block is fixedly connected to the bottom of the movable plate, and the abutment block contacts the inclined surface of the blocking block, a limit rod is fixedly connected between the left and right side plates of the installation box, and the limit rod and the movable plate are slidably installed, and a driving assembly is arranged on the installation box.

2. The hydraulic control valve according to claim 1, characterized in that: The driving assembly comprises a worm wheel, which is fixedly connected to the left end of the threaded rod. A rotating rod is rotatably mounted on the top plate of the mounting box, and a worm is fixedly connected to the bottom of the rotating rod, and the worm is meshed with the worm wheel.

3. The hydraulic control valve according to claim 1, characterized in that: The blocking block is in the shape of a quadrangular pyramid, and the inner wall of the opening fits with the outer portion of the blocking block.

4. The hydraulic control valve according to claim 1, characterized in that: The mounting plate is located on the left side of the fixing plate, the mounting box is located at the upper end of the valve body, and the mounting box is located between the mounting plate and the fixing plate.

5. The hydraulic control valve according to claim 1, characterized in that: The connecting pipes are respectively provided with internal threads.

6. The hydraulic control valve according to claim 2, characterized in that: The worm is located at the rear side of the worm wheel.

7. The hydraulic control valve according to claim 1, characterized in that: The limiting rod is located at the lower end of the threaded rod.

8. The hydraulic control valve according to claim 1, characterized in that: A sealing cover is fixedly connected to the top plate of the installation box, and the rotating rod passes through the sealing cover.

9. The hydraulic control valve according to claim 8, characterized in that: A knob is fixedly connected to the top of the rotating rod.

10. The hydraulic control valve according to claim 9, characterized in that: The knob is provided with anti-slip grooves.

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