Hydraulic control main valve energy-saving system for aerial work platform

Abstract

The utility model relates to the technical field of hydraulic control valves, and discloses a hydraulic control main valve energy-saving system for an aerial work platform, which comprises a valve body, a control handle is movably mounted on the valve body, four connectors are arranged on the outer wall of the valve body, and oil pipes are movably connected to the four connectors. A threaded connector in threaded connection with the connector is fixedly mounted on the bottom face of the oil pipe, a mounting ring is fixedly mounted at the position, corresponding to the connector, of the outer wall of the valve body, a sealing ring is fixedly mounted on the upper surface of the mounting ring, a clamping ring is fixedly connected to the outer wall of the upper end of the sealing ring, and multiple sets of clamping assemblies are arranged on the outer wall of the mounting ring at equal intervals. According to the utility model, when the oil pipe is in threaded connection with the interface through the screwed joint, the oil pipe can extrude the sealing ring, and the sealing ring is deformed after being extruded, so that the sealing performance between the screwed joint and the interface can be enhanced, and further energy consumption increase caused by change of the flowing state of a medium in an oil way is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic control valve technology, and in particular to an energy-saving system for a hydraulic control main valve used in aerial work platforms. Background Technology

[0002] Aerial work platforms are widely used in various industries for high-altitude operations, equipment installation, and maintenance, and are characterized by mobility and adaptability to different working conditions. Traditional aerial work platform hydraulic control systems typically use an electric motor or engine as a power source to drive a hydraulic pump that converts mechanical energy into hydraulic energy. This hydraulic energy is then used to lift and move the work platform via actuators such as the boom lifting cylinder.

[0003] However, during the operation of hydraulic systems, insufficient sealing at the connections between pipelines and valve bodies often leads to hydraulic oil leakage. This leakage not only causes material loss but also increases energy consumption due to changes in the flow state of the medium, and causes environmental pollution. Therefore, we propose an energy-saving system for the hydraulic control main valve of aerial work platforms. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide an energy-saving hydraulic control main valve system for aerial work platforms.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hydraulic control main valve energy-saving system for aerial work platforms, comprising a valve body, a control handle movably mounted on the valve body, four interfaces on the outer wall of the valve body, and oil pipes movably connected to each of the four interfaces, threaded connectors that are threadedly connected to the interfaces are fixedly mounted on the bottom surface of the oil pipes, mounting rings are fixedly mounted on the outer wall of the valve body at positions corresponding to the interfaces, sealing rings are fixedly mounted on the upper surface of the mounting rings, snap rings are fixedly connected to the upper outer wall of the sealing rings, and multiple sets of clamping components are equidistantly arranged on the outer wall of the mounting rings.

[0006] Preferably, the clamping assembly specifically includes two fixing plates fixedly installed on the outer wall of the mounting ring, a gear rotatably installed between the two fixing plates, a clamping rod fixedly installed on the outer wall of the gear, and a rack plate movably connected to the bottom surface of the clamping ring at the corresponding position of the gear, and the rack plate meshing with the gear.

[0007] Preferably, a guide block is fixedly installed on the outer wall of the mounting ring between the rack plate and the mounting ring, and the guide block is wedge-shaped.

[0008] Preferably, a raised strip is fixedly installed on the inner wall of the sealing ring, and the cross-section of the raised strip is arc-shaped.

[0009] Preferably, both the sealing ring and the raised strip are elastically configured, the outer wall of the sealing ring has multiple buffer grooves, and the outer circular wall of the sealing ring is flush with the outer wall of the oil pipe.

[0010] Preferably, the clamping rod has an L-shaped structure, and an elastic pad is fixedly installed at the end of the clamping rod.

[0011] Beneficial effects

[0012] This utility model provides an energy-saving system for the hydraulic control main valve of an aerial work platform. It has the following beneficial effects:

[0013] (1) The hydraulic control main valve energy-saving system for aerial work platforms can squeeze the sealing ring when the oil pipe is connected to the interface through the threaded joint. When the sealing ring is squeezed and deformed, it can enhance the sealing between the threaded joint and the interface, thereby avoiding the change of the medium flow state in the oil circuit and increasing energy consumption.

[0014] (2) The hydraulic control main valve energy-saving system for aerial work platforms can keep the sealing ring in the deformed state when the end of the clamping rod in the clamping assembly clamps the clamping ring, thereby ensuring that the convex strip set on the inner wall of the sealing ring is squeezed against the outer wall of the threaded joint, further ensuring the sealing of the oil pipe and the interface connection, and preventing the oil in the oil circuit from leaking from the gap between the threaded joint and the interface. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the oil pipe and interface of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the sealing ring structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the mounting ring structure of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.

[0023] Legend: 1. Valve body; 2. Control handle; 3. Oil pipe; 4. Threaded connector; 5. Interface; 6. Sealing ring; 7. Mounting ring; 8. Snap ring; 9. Clamping assembly; 901. Rack plate; 902. Guide block; 903. Gear; 904. Clamping rod; 905. Raised bar; 906. Fixing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-6 As shown, the hydraulic control main valve energy-saving system for aerial work platforms includes a valve body 1, a control handle 2 movably mounted on the valve body 1, four interfaces 5 on the outer wall of the valve body 1, and oil pipes 3 movably connected to each of the four interfaces 5. A threaded connector 4, threaded to the interface 5, is fixedly mounted on the bottom surface of the oil pipe 3. An installation ring 7 is fixedly mounted on the outer wall of the valve body 1 at a position corresponding to the interface 5. A sealing ring 6 is fixedly mounted on the upper surface of the installation ring 7. A snap-fit ​​ring 8 is fixedly connected to the upper outer wall of the sealing ring 6. Multiple sets of clamping components 9 are equidistantly arranged on the outer wall of the installation ring 7. When the oil pipe 3 is threadedly connected to the interface 5 through the threaded connector 4, the oil pipe 3 can compress the sealing ring 6. When the sealing ring 6 is compressed, it deforms, which enhances the sealing performance between the threaded connector 4 and the interface 5, thereby preventing changes in the flow state of the medium in the oil circuit and increasing energy consumption.

[0026] like Figure 5 and Figure 6As shown, the clamping assembly 9 specifically includes two fixing plates 906 fixedly installed on the outer wall of the mounting ring 7. A gear 903 is rotatably installed between the two fixing plates 906. A clamping rod 904 is fixedly installed on the outer wall of the gear 903. A rack plate 901 is movably connected to the bottom surface of the locking ring 8 at the corresponding position of the gear 903, and the rack plate 901 is meshed with the gear 903. When the sealing ring 6 is not compressed, the end of the rack plate 901 meshes with the outer wall of the gear 903. At this time, the clamping rod 904 is in an outwardly open state. The gear 903 can be rotated by the rack plate 901 continuously moving downward, thereby causing the clamping rod 904 to rotate to the end and clamp with the locking ring 8.

[0027] like Figure 5 and Figure 6 As shown, a guide block 902 is fixedly installed on the outer wall of the mounting ring 7 between the rack plate 901 and the mounting ring 7, and the guide block 902 is wedge-shaped; the wedge-shaped guide block 902 can guide the rack plate 901, so that the rack plate 901 always remains in mesh with the gear 903.

[0028] like Figure 5 and Figure 6 As shown, a protrusion 905 is fixedly installed on the inner wall of the sealing ring 6, and the cross section of the protrusion 905 is arc-shaped. The arc-shaped protrusion 905 is an elastic material with high sealing performance. When it deforms, it can be squeezed tightly against the outer wall of the threaded joint 4, thereby enhancing the sealing performance at the connection between the threaded joint 4 and the interface 5.

[0029] like Figure 5 and Figure 6 As shown, both the sealing ring 6 and the protrusion 905 are elastically designed. The outer wall of the sealing ring 6 has multiple buffer grooves, and the outer circular wall of the sealing ring 6 is flush with the outer wall of the oil pipe 3. As the threaded joint 4 extends into the interface 5, the oil pipe 3 can continuously squeeze the sealing ring 6. After the sealing ring 6 is squeezed and deformed, the buffer grooves on its outer wall become narrower, and the inner wall bulges inward and is squeezed tightly between the inner wall and the outer wall of the threaded joint 4.

[0030] like Figure 5 and Figure 6 As shown, the clamping rod 904 has an L-shaped structure, and an elastic pad is fixedly installed at the end of the clamping rod 904. The setting of the elastic pad can increase the friction between the end of the clamping rod 904 and the upper surface of the locking ring 8, thereby making the end of the clamping rod 904 and the locking ring 8 clamp together.

[0031] The working principle of this utility model is as follows: In use, this hydraulic control valve is mainly applied to aerial work platforms. The user connects the ends of four oil pipes 3 to the valve body 1 through the interface 5 via the threaded connector 4. Under the action of the threaded transmission between the inner wall of the threaded connector 4 and the interface 5, the threaded connector 4 continuously extends into the interface 5. At the same time, the ends of the oil pipes 3 continuously compress the sealing ring 6. The sealing ring 6 is elastic. When the sealing ring 6 is compressed, it deforms and becomes thinner. The protrusion 905 located on the inner wall of the sealing ring 6 also deforms. After deformation, the protrusion 905 is squeezed tightly against the upper outer wall of the threaded connector 4, enhancing the sealing between the threaded connector 4 and the inner wall of the interface 5, thereby enhancing the sealing at the connection between the oil pipes 3 and the valve body 1, and preventing the oil pipes 3 from severing from the interface 5. Oil leakage at the connection point makes the valve body 1 more energy-efficient during use. During the process of the sealing ring 6 being squeezed and deformed, the rack plate 901, which is movably connected at the bottom of the snap ring 8, continues to move downward. The end of the rack plate 901 was originally engaged with the outer wall of the gear 903. When the rack plate 901 moves downward, the meshing action between the rack plate 901 and the gear 903 causes the gear 903 to rotate. The clamping rod 904, which is fixedly installed on the outer wall of the gear 903, rotates synchronously. The end of the clamping rod 904 can clamp the snap ring 8, thereby ensuring that the sealing ring 6 is always in a state of being squeezed tightly with the outer wall of the threaded joint 4 after deformation. This further ensures the sealing performance at the connection between the oil pipe 3 and the interface 5, and prevents oil in the oil circuit from leaking from the gap between the threaded joint 4 and the interface 5.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic control master valve energy saving system for aerial work platforms, comprising a valve body (1), a control handle (2) movably mounted on the valve body (1), characterized in that: The outer wall of the valve body (1) is provided with four interfaces (5), and the four interfaces (5) are movably connected with oil pipes (3). The bottom surface of the oil pipe (3) is fixedly installed with a threaded joint (4) which is screwed with the interface (5). The outer wall of the valve body (1) is fixedly installed with a mounting ring (7) at the corresponding position of the interface (5). The upper surface of the mounting ring (7) is fixedly installed with a sealing ring (6). The outer wall of the upper end of the sealing ring (6) is fixedly connected with a clamping ring (8). The outer wall of the mounting ring (7) is equidistantly provided with a plurality of clamping assemblies (9).

2. The hydraulic control master valve energy saving system for aerial work platforms of claim 1, wherein: The clamping assembly (9) specifically comprises two fixed plates (906) fixedly installed on the outer wall of the mounting ring (7). The two fixed plates (906) are rotatably installed with a gear (903) therebetween. The outer wall of the gear (903) is fixedly installed with a clamping rod (904). The bottom surface of the clamping ring (8) is movably connected with a rack plate (901) at the corresponding position of the gear (903), and the rack plate (901) is meshingly connected with the gear (903).

3. The hydraulic control master valve energy saving system for aerial work platforms of claim 2, wherein: The outer wall of the mounting ring (7) is fixedly installed with a guide block (902) between the rack plate (901) and the mounting ring (7), and the guide block (902) is wedge-shaped.

4. The hydraulic control master valve energy saving system for aerial work platforms of claim 3, wherein: The inner wall of the sealing ring (6) is fixedly installed with a convex strip (905), and the cross section of the convex strip (905) is arc-shaped.

5. The hydraulic control master valve energy saving system for aerial work platforms of claim 4, wherein: The sealing ring (6) and the convex strip (905) are both elastically arranged. The outer wall of the sealing ring (6) is provided with a plurality of buffer grooves, and the outer circular wall surface of the sealing ring (6) is flush with the outer wall of the oil pipe (3).

6. The hydraulic control master valve energy saving system for aerial work platforms of claim 5, wherein: The clamping rod (904) is L-shaped, and the end of the clamping rod (904) is fixedly installed with an elastic pad.

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