Hydraulic valve block for agricultural machine

Abstract

The utility model provides a hydraulic valve block for agricultural machinery, which relates to the technical field of hydraulic valve blocks, and comprises a mounting base and a hydraulic valve block body, and further comprises clamping pieces arranged on the outer sides of the two ends of the hydraulic valve block body, and clamping claws arranged on the two sides of the hydraulic valve block body and used for clamping and limiting the hydraulic valve block body, through coaxial locking of a second rotating arm and a connecting plate, stable clamping of a hydraulic valve block body can be maintained without the continuous action of hydraulic power, the situation that clamping of the hydraulic valve block body by a clamping claw fails due to system pressure fluctuation is avoided, and the reliability of workpiece fixing in agricultural machine operation is guaranteed; a rigid supporting structure is formed in the self-locking state, and the overall external force interference resisting capacity is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve block technology, and in particular to a hydraulic valve block for agricultural machinery. Background Technology

[0002] As a core component of a hydraulic system, a hydraulic valve block is essentially a modular assembly that integrates multiple hydraulic valves. Its core function is to precisely control the fluid parameters within the hydraulic system, including flow rate, pressure, and flow direction, thereby driving various hydraulic actuators to complete predetermined actions. Structurally, hydraulic valve blocks are typically made of block metal or other high-strength materials, with precision-machined channels and chambers of various shapes and precise dimensions inside for installing hydraulic valves, connecting pipelines, and fixing accessories. Through the connecting holes on the valve block surface and the internal channels, it can seamlessly connect with the pipelines of the hydraulic system. In industrial applications, the operation of mechanical equipment and the bumpy transportation conditions will generate strong impacts and vibrations. To ensure the stable operation of the hydraulic system, the hydraulic valve block must have excellent impact resistance to resist the interference and damage caused by external impact forces to the system.

[0003] A search revealed that Chinese patent CN220816106U discloses an impact-resistant hydraulic valve block, including a base. The base has a protective shell on its top, and support blocks are fixedly connected to the bottom of the base. Multiple fixing blocks are fixedly connected to the front and rear sides of the top of the base. Installation components are provided on the inner walls of the fixing blocks, and clamping components are fixedly connected to the inner walls of the base. This design provides a protective shell for easy manual installation of the hydraulic valve block and facilitates the removal of the impact-resistant hydraulic valve block by workers. It also protects the top of the hydraulic valve block from impact forces, thereby improving the working efficiency of the hydraulic valve block.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] The fixing mechanism lacks a dual protection mechanism: The fixing mechanism of the above-mentioned device lacks a dual protection mechanism. The single fixing method has insufficient reliability. Motor failure will lead to loss of fixing function, causing safety accidents such as workpiece falling off. In addition, it has weak resistance to external interference such as vibration and impact, poor adaptability to working conditions, and reduced fixing accuracy and stability in complex environments. At the same time, failure can easily trigger a chain of safety hazards.

[0006] The installation of protective cases is quite complicated: not only does it increase manual operation time and reduce work efficiency, but it also requires high technical skills from operators and is prone to improper installation. In addition, it increases the difficulty of maintenance, prolongs equipment downtime, and complicated installation can easily cause component interference, affecting equipment layout and function, and reducing reliability. Utility Model Content

[0007] The purpose of this utility model is to provide a hydraulic valve block for agricultural machinery, which can solve the problems of the lack of dual protection mechanism in the fixing mechanism of the above-mentioned device, the insufficient reliability of the single fixing method, the loss of fixing function due to motor failure, the safety accidents such as workpiece falling off, weak resistance to external interference such as vibration and impact, poor adaptability to working conditions, and decreased fixing accuracy and stability in complex environments. At the same time, failure can easily lead to a chain of safety hazards, and the installation of the protective shell is complicated, which not only increases manual operation time and reduces work efficiency, but also requires high technical skills from operators and is prone to improper installation. It also increases the difficulty of maintenance, prolongs equipment downtime, and complicated installation can easily cause component interference, affecting the layout and function of the equipment and reducing reliability.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic valve block for agricultural machinery, comprising a mounting base and a hydraulic valve block body, and further comprising clamping members disposed on the outer sides of both ends of the hydraulic valve block body, clamping claws disposed on both sides of the hydraulic valve block body for clamping and limiting the hydraulic valve block body, the limiting member being disposed on one side of the mounting base, and a cover being disposed on the outer side of the hydraulic valve block body.

[0009] In a preferred embodiment, the clamping member includes a mounting plate fixedly disposed on the upper surface of the mounting base, connecting blocks fixedly disposed on the outer sides of both ends of the mounting plate, a first rotating arm rotatably disposed on the inner side of the end of the connecting block, a second rotating arm rotatably disposed on the inner side of one end of the first rotating arm, a third rotating arm rotatably disposed on the inner side of the other end of the first rotating arm, the outer side of the end of the second rotating arm being connected to the inner side of one end of the clamping claw for driving the clamping claw to move laterally, a connecting plate rotatably disposed on the outer side of the ends of the two second rotating arms, and a slide rail mounted on the outer side of one end of the mounting plate for limiting the clamping claw.

[0010] In a preferred embodiment, a first limiting post is fixedly provided on the outer side of one end of the mounting plate, and the outer side of the first limiting post is connected to the inner sides of both ends of the connecting plate.

[0011] In a preferred embodiment, a telescopic cylinder is provided on one side of the mounting base, and the outer side of the main shaft of the telescopic cylinder is connected to one side of the connecting plate.

[0012] In a preferred embodiment, a top block is fixedly provided on one side of the mounting plate, and second limiting posts are fixedly provided on the outer sides of both ends of the mounting plate. The second limiting posts are connected to the inner sides of both ends of the clamping claw to limit the clamping claw.

[0013] In a preferred embodiment, the limiting member includes a first limiting plate fixedly disposed on one side of the mounting base for limiting one side of the cover, and a second limiting plate fixedly disposed on one side of the mounting base for limiting the other side of the cover.

[0014] In a preferred embodiment, a top head is fixedly provided on the outer side of one end of the second rotating arm. The top head is made of rubber and is used to limit the inner wall surface of the cover.

[0015] In a preferred embodiment, two handles are fixedly provided on one side of the cover.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In use, this utility model, through the coaxial locking of the second rotating arm and the connecting plate, can maintain stable clamping of the hydraulic valve block body without continuous hydraulic power, avoiding the clamping failure of the clamping claws on the hydraulic valve block body due to system pressure fluctuations, ensuring the reliability of workpiece fixation in agricultural machinery operations. The self-locking state forms a rigid support structure, greatly improving the overall resistance to external interference, reducing the displacement risk of the hydraulic valve block body under agricultural machinery vibration, transportation and other working conditions, reducing safety hazards. This structure simplifies the operation process, and users only need to start the clamping and locking once to complete the operation, without the need for frequent monitoring and adjustment, significantly improving the automation level and efficiency of agricultural machinery operations.

[0018] 2. In use, this utility model allows for the rapid installation of the cover while simultaneously fixing the hydraulic valve block body, avoiding repeated start-stop of the hydraulic system, reducing energy consumption and shortening operation time. The rubber top can both conform to the inner wall of the cover through deformation, providing stable friction to prevent the cover from sliding, and buffer stress to protect the cover and the hydraulic valve block body, ensuring the safety of double fixation. Reverse drive can simultaneously release the constraints on the cover and the hydraulic valve block body. The handle and disassembly process are simple, making it easy to quickly switch whether to use the cover for protection according to operational needs. Attached Figure Description

[0019] Figure 1 A schematic diagram of the main structure of a hydraulic valve block for agricultural machinery provided by this utility model;

[0020] Figure 2 A schematic diagram of the structure of the hydraulic valve block body and clamping claw in a hydraulic valve block for agricultural machinery provided by this utility model;

[0021] Figure 3 A schematic diagram of the structure of the mounting plate and the first rotating arm in a hydraulic valve block for agricultural machinery provided by this utility model;

[0022] Figure 4This utility model provides a schematic diagram of the structure of the second and third rotating arms in a hydraulic valve block for agricultural machinery.

[0023] Legend:

[0024] 1. Mounting base; 2. Hydraulic valve block body; 3. Clamping claw; 301. Mounting plate; 302. First rotating arm; 303. Second rotating arm; 304. Third rotating arm; 305. Connecting block; 306. Telescopic cylinder; 307. Connecting plate; 308. First limiting post; 309. Slide rail; 310. Top block; 311. Second limiting post; 4. Cover; 401. First limiting plate; 402. Top head; 403. Second limiting plate; 404. Handle. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] In this embodiment, a hydraulic valve block for agricultural machinery is provided, such as... Figures 1 to 4 As shown, the device includes a mounting base 1, a hydraulic valve block body 2, clamping claws 3, and clamping components. The hydraulic valve block body 2 contacts one side of the multiple clamping claws 3, meaning that the hydraulic valve block body 2 is clamped on both sides by the four clamping claws 3. The clamping components include:

[0028] A mounting plate 301 is fixedly connected to the upper surface of the mounting base 1. The mounting plate 301 has a plate-like structure. Connecting blocks 305 are fixedly connected to the outer sides of both ends of the mounting plate 301. The connecting blocks 305 have a U-shaped structure, and a first rotating arm 302 is rotatably connected to the inner side of each connecting block 305. A second rotating arm 303 and a third rotating arm 304 are rotatably connected to the inner sides of the two ends of the first rotating arms 302, respectively. A connecting plate 307 is rotatably connected to the outer sides of the ends of the two first rotating arms 302. The connecting plate 307 is used to pull or push the two second rotating arms 303 to move synchronously. One outer side of one end of the third rotating arm 304 is rotatably connected to the inner side of one end of the clamping claw 3, and is used to push or pull the clamping claw 3 to move laterally on one side of the mounting plate 301. A slide rail 309 is installed, and a clamping claw 3 is installed on one side of the slide rail 309 to limit the clamping claw 3 and restrict its movement trajectory. At the same time, a top block 310 is fixedly connected to one side of the mounting plate 301, and two first limiting posts 308 are fixedly connected to the other side. The top block 310 limits the clamping claw 3 by slidingly connecting the second limiting posts 311 on the outer sides of its two ends to the inner side of the bottom end of the clamping claw 3. The outer side of the first limiting post 308 is slidably connected to the inner side of both ends of the connecting plate 307. The first limiting post 308 is used to limit the movement of the connecting plate 307 along the outer side of the first limiting post 308. A telescopic cylinder 306 is installed on one side of the mounting base 1, and the outer side of the main shaft of the telescopic cylinder 306 is fixedly connected to one side of the connecting plate 307.

[0029] In the specific implementation process: When the user needs to clamp and limit the hydraulic valve block body 2, the user can place the hydraulic valve block body 2 on the upper surface of the mounting base 1 and on the inner side of the two clamping claws 3. At this time, the user can activate the telescopic cylinder 306. The telescopic cylinder 306 pushes the connecting plate 307 to move towards the side of the mounting plate 301. When the connecting plate 307 moves, it will push the second rotating arm 303 on the inner side of both ends until they are in the same axis position. When the second rotating arm 303 rotates, it will push the end of the first rotating arm 302 outward, thereby driving the inner side of the connecting block 305 of the first rotating arm 302 to rotate, which can drive the other end of the first rotating arm 302 to clamp towards the middle. At this time, the first rotating arm 302 will push the third rotating arm 304, and then push the clamping claw 3 on the outer side of the slide rail 309 to clamp towards the middle through the third rotating arm 304, thus clamping the outer side of the hydraulic valve block body 2. At the same time, the second limiting post 311 is inserted into the inner side of the bottom end of the clamping claw 3 to limit it.

[0030] Example 2

[0031] It should be noted that, based on Example 1, such as Figure 2 and Figure 4As shown, in this embodiment, a first limiting plate 401 and a second limiting plate 403 are fixedly connected to the upper surface of the mounting base 1 to abut against the inner side of the cover 4 and limit its movement. A top head 402 is fixedly connected to the outer side of one end of the second rotating arm 303. The top head 402 is made of rubber and is used to increase the friction between it and the inner wall of the cover 4. Two handles 404 are fixedly connected to the upper surface of the cover 4 for lifting the cover 4.

[0032] When the two second rotating arms 303 are in the same horizontal axis position, the top head 402 on the outer side of their ends will abut against the inner wall of the cover 4 to limit the cover 4.

[0033] In the specific implementation process: When the user needs to cover the outside of the hydraulic valve block body 2 for protection, the user can place the cover 4 inside the first limiting plate 401 and the second limiting plate 403 to limit the bottom of the cover 4. At this time, the user starts the telescopic cylinder 306, which pushes the connecting plate 307, thereby driving the two second rotating arms 303 to gradually rotate to the same axis position. As the second rotating arms 303 gradually rotate, the top head 402 on the outer side of the end of the second rotating arm 303 can abut against the inner wall of the cover 4. The rubber top head 402 can deform to a certain extent to prevent excessive stress and increase friction. When the cover 4 is no longer needed, the telescopic cylinder 306 is started again to retract it, thereby driving the two second rotating arms 303 to rotate in the opposite direction, so that the top head 402 at its end is separated from the inner wall of the cover 4. Then the cover 4 can be disassembled by the handle 404.

[0034] Working principle:

[0035] Based on Example 1, the two 303s and their inner 307 are aligned on the same axis to achieve a self-locking function. Rigid support is formed by axial alignment. The second rotating arm 303 is coaxially locked with the connecting plate 307. This allows for stable clamping of the hydraulic valve block body 2 without continuous hydraulic power, preventing clamping failure of the clamping claw 3 on the hydraulic valve block body 2 due to system pressure fluctuations. This ensures the reliability of workpiece fixation during agricultural machinery operations. The self-locking state forms a rigid support structure, greatly improving the overall resistance to external interference and reducing the risk of displacement of the hydraulic valve block body 2 under conditions such as agricultural machinery vibration and transportation, thus reducing safety hazards. This structure simplifies the operation process. Users only need to start the clamping and locking process once, without frequent monitoring and adjustment, significantly improving the automation level and efficiency of agricultural machinery operations.

[0036] Based on Example 2, the cover 4 can be installed quickly while the hydraulic valve block body 2 is fixed, avoiding repeated start-stop of the hydraulic system, reducing energy consumption and shortening operation time. The rubber top 402 can both conform to the inner wall of the cover 4 through deformation to provide stable friction to prevent the cover 4 from sliding, and buffer stress to protect the cover 4 and the hydraulic valve block body 2, ensuring the safety of double fixation. Reverse drive can simultaneously release the constraints on the cover 4 and the hydraulic valve block body 2. The handle 404 and the disassembly process are simple, making it easy to quickly switch whether to use the cover 4 for protection according to the operation requirements, enhancing the multi-functional adaptability of agricultural machinery.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A hydraulic valve block for agricultural machinery, comprising a mounting base (1) and a hydraulic valve block body (2), characterized in that: Also includes: Clamping components are disposed on the outer sides of both ends of the hydraulic valve block body (2); Clamping claws (3) are disposed on both sides of the hydraulic valve block body (2) for clamping and limiting the hydraulic valve block body (2); A limiting component is provided on one side of the mounting base (1); The cover (4) is located on the outside of the hydraulic valve block body (2).

2. The hydraulic valve block for agricultural machinery according to claim 1, characterized in that: The clamping element includes: Mounting plate (301) is fixedly mounted on the upper surface of mounting base (1); Connecting blocks (305) are fixedly disposed on the outer sides of both ends of the mounting plate (301); The first rotating arm (302) is rotatably disposed on the inner side of the end of the connecting block (305); The second rotating arm (303) is rotatably disposed on the inner side of one end of the first rotating arm (302); The third rotating arm (304) is rotatably disposed on the inner side of the other end of the first rotating arm (302), and the outer side of the end of the second rotating arm (303) is connected to the inner side of one end of the clamping claw (3) to drive the clamping claw (3) to move laterally; The connecting plate (307) is rotatably disposed on the outer side of the ends of the two second rotating arms (303); The slide rail (309) is installed on the outer side of one end of the mounting plate (301) and is used to limit the clamping claw (3).

3. A hydraulic valve block for agricultural machinery according to claim 2, characterized in that: A first limiting post (308) is fixedly provided on the outer side of one end of the mounting plate (301), and the outer side of the first limiting post (308) is connected to the inner sides of both ends of the connecting plate (307).

4. A hydraulic valve block for agricultural machinery according to claim 3, characterized in that: A telescopic cylinder (306) is provided on one side of the mounting base (1), and the outer side of the main shaft of the telescopic cylinder (306) is connected to one side of the connecting plate (307).

5. A hydraulic valve block for agricultural machinery according to claim 2, characterized in that: A top block (310) is fixedly provided on one side of the mounting plate (301), and a second limiting post (311) is fixedly provided on the outer sides of both ends of the mounting plate (301). The second limiting post (311) is connected to the inner sides of both ends of the clamping claw (3) and is used to limit the clamping claw (3).

6. A hydraulic valve block for agricultural machinery according to claim 2, characterized in that: The limiting component includes: The first limiting plate (401) is fixedly disposed on one side of the mounting base (1) and is used to limit one side of the cover (4); The second limiting plate (403) is fixedly installed on one side of the mounting base (1) and is used to limit the other side of the cover (4).

7. A hydraulic valve block for agricultural machinery according to claim 6, characterized in that: A top head (402) is fixedly provided on the outer side of one end of the second rotating arm (303). The top head (402) is made of rubber and is used to limit the inner wall surface of the cover (4).

8. A hydraulic valve block for agricultural machinery according to claim 6, characterized in that: Two handles (404) are fixedly installed on one side of the cover (4).

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