Automatic conduction device for oil way of power accessory

By designing an automatic hydraulic circuit connection device for power attachments, and utilizing a sliding guide mechanism to achieve rapid connection between the male and female hydraulic circuit connection blocks, the problem of time-consuming and labor-intensive manual connection of hydraulic pipelines in existing technologies is solved, thereby improving the efficiency of excavator attachment installation and replacement.

CN224199957UActive Publication Date: 2026-05-05傅光保
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
傅光保
Filing Date
2025-06-03
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The installation and replacement of hydraulic lines for existing excavator attachments require manual connection, which is time-consuming, labor-intensive, and inefficient.

Method used

Design an automatic hydraulic circuit connection device for power attachments, including attachment bracket and hydraulic circuit connection component. The device utilizes a sliding guide mechanism to achieve rapid connection between male and female hydraulic circuit connection blocks. Through automatic connection between male and female quick-connect connectors, the device enables synchronous connection of multiple hydraulic circuits.

Benefits of technology

It improved the efficiency of installing and replacing power attachments, reduced manual operation, and improved construction efficiency and work quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224199957U_ABST
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Abstract

The utility model discloses a power accessory oil way automatic conduction device, which belongs to the technical field of excavator accessories and comprises an accessory support, an oil way conduction component fixing frame is fixedly arranged at the inner bottom of the accessory support, a male oil way conduction block is clamped and fixed in a U-shaped groove of the oil way conduction component fixing frame, and a female oil way conduction block is clamped and fixed in a U-shaped groove of the male oil way conduction block. A female oil way conduction block is correspondingly arranged on one side of the outer portion of the male oil way conduction block. According to the split type automatic oil way conduction device, the female oil way conduction block is installed on the mechanical arm and externally connected with a driving oil way, the male oil way conduction block is fixedly arranged on the power accessory and connected into an external oil way of an accessory power unit, and under the action of the sliding guide mechanism, the male quick connector and the female quick connector are in butt joint quickly, so that the mechanical arm is connected with the power accessory. And therefore, the aim of quickly and synchronously butting multiple groups of oil ways is fulfilled, the operation of manually butting the oil ways one by one is reduced, and the mounting and replacing efficiency of the power accessory is improved.
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Description

Technical Field

[0001] This utility model relates to the field of excavator attachment technology, and in particular to an automatic hydraulic circuit control device for power attachments. Background Technology

[0002] Excavator attachments refer to various auxiliary tools and equipment installed on excavators to enhance their functionality and applicability, adapting to different construction needs. These attachments are connected to the excavator through a hydraulic system and powered by hydraulic cylinders to achieve various construction functions. Different attachments are suitable for different working conditions and can significantly improve construction efficiency and work quality.

[0003] Currently, hydraulic lines for power attachments are mostly connected and installed using threaded couplings or quick couplings. Therefore, during installation or replacement, the hydraulic lines need to be manually connected, which is time-consuming, labor-intensive, and inefficient.

[0004] To address the aforementioned issues, an automatic hydraulic circuit control device for power attachments is proposed. Utility Model Content

[0005] The main purpose of this utility model is to provide an automatic hydraulic circuit control device for power attachments, which solves the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] An automatic hydraulic circuit connection device for a power attachment includes an attachment bracket, an hydraulic circuit connection component fixing frame is fixedly provided at the inner bottom of the attachment bracket, a male hydraulic circuit connection block is fixedly inserted in the U-shaped groove of the hydraulic circuit connection component fixing frame, and a female hydraulic circuit connection block is correspondingly provided on the outer side of the male hydraulic circuit connection block.

[0008] The top of the public oil circuit guide block is formed with a guide groove, and one end of the guide groove is provided with a second guide hole. The inside of the public oil circuit guide block is formed with multiple oil channels, and the input and output ends of the multiple oil channels are respectively connected to a second quick-connect mounting hole and a second oil circuit mounting hole.

[0009] The main oil circuit guide block has a first guide hole formed on it, and a guide rod that slides with both the guide groove and the second guide hole is inserted into the second guide hole. The main oil circuit guide block also has multiple oil channels formed inside it, and the input and output ends of the multiple oil channels are respectively connected to the first quick-connect mounting hole and the first oil circuit mounting hole.

[0010] Furthermore, the oil circuit connection component fixing bracket has a U-shaped structure. One half of the oil circuit connection component fixing bracket has a vertically penetrating second bolt hole, and the other half of the wall has a vertically non-penetrating spring hole, in which a spring is pressed.

[0011] Furthermore, the outer walls of the oil passage guide block are formed with fixing grooves on both sides, and the fixing grooves are fixedly installed with the U-shaped structure by bolts, and the bottom of the oil passage guide block is in contact with the spring.

[0012] Furthermore, a female quick connector is sealed and inserted into the first quick-connect mounting hole, and a male quick connector is sealed and inserted into the second quick-connect mounting hole, wherein the female quick connector and the male quick connector are adapted to be connected.

[0013] Furthermore, the first oil circuit mounting hole is connected to the oil circuit control valve of the robotic arm through an elbow, and the second oil circuit mounting hole is connected to the oil circuit pipeline of the power attachment through an external seal.

[0014] Furthermore, a 2-3cm positioning hole is provided on the outer wall of the main oil circuit guide block, and a positioning pin is inserted into the positioning hole. The four corners of the main oil circuit guide block are formed with first bolt holes.

[0015] Furthermore, the oil circuit connection assembly fixing bracket is fixed to the attachment bracket by inserting bolts through the second bolt hole.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] This invention designs a split-type automatic oil circuit connection device. The female oil circuit connection block is installed on the robotic arm and connected to the external drive oil circuit. The male oil circuit connection block is fixed on the power attachment and connected to the external oil circuit of the attachment's power unit. Under the action of the sliding guide mechanism, the male quick-connect connector and the female quick-connect connector are quickly connected, thereby achieving the purpose of rapid synchronous connection of multiple oil circuits. This reduces the manual operation of connecting oil circuits one by one and improves the installation and replacement efficiency of the power attachment. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of a preferred embodiment of an automatic hydraulic circuit conduction device for power attachments according to the present invention;

[0019] Figure 2 This is a rear view structural schematic diagram of a preferred embodiment of an automatic hydraulic circuit conduction device for a power attachment according to the present invention;

[0020] Figure 3 This is a bottom view schematic diagram of a preferred embodiment of an automatic hydraulic circuit conduction device for a power attachment according to the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the attachment bracket after removing one side plate in a preferred embodiment of the automatic hydraulic circuit conduction device for power attachments according to the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the female oil circuit guide block and the male oil circuit guide block after separation in a preferred embodiment of the automatic oil circuit conduction device for power attachments according to the present invention;

[0023] Figure 6 This is a front view of one side of the guide rod connecting the main oil circuit guide block in a preferred embodiment of the automatic oil circuit conduction device for power attachments according to the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the oil circuit guiding component fixing frame in a preferred embodiment of an automatic oil circuit guiding device for a power attachment according to the present invention.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Attachment bracket; 2. Female oil circuit guide block; 201. Female quick connector; 202. Positioning hole; 203. First quick connector mounting hole; 204. First oil circuit mounting hole; 205. First guide hole; 206. First bolt hole; 3. Male oil circuit guide block; 301. Second guide hole; 302. Guide groove; 303. Fixing groove; 304. Male quick connector; 305. Second quick connector mounting hole; 306. Second oil circuit mounting hole; 4. Oil circuit guide component fixing bracket; 401. Second bolt hole; 402. Spring hole; 5. Guide rod. Detailed Implementation

[0027] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0028] like Figures 1-7 As shown, this embodiment provides an automatic hydraulic circuit connection device for power attachments, including an attachment bracket 1. An hydraulic circuit connection component fixing frame 4 is fixedly installed at the inner bottom of the attachment bracket 1. A male hydraulic circuit connection block 3 is fixedly inserted into the U-shaped groove of the hydraulic circuit connection component fixing frame 4. A female hydraulic circuit connection block 2 is correspondingly provided on one side of the outer side of the male hydraulic circuit connection block 3. A guide groove 302 is formed on the top of the male hydraulic circuit connection block 3, and a second guide hole 301 is provided at one end of the guide groove 302. The interior of the male hydraulic circuit connection block 3 is formed with... The type has multiple oil channels, and the input and output ends of the multiple oil channels are respectively connected to the second quick-connect mounting hole 305 and the second oil circuit mounting hole 306; the main oil circuit guide block 2 is formed with a first guide hole 205, and a guide rod 5 that slides with both the guide groove 302 and the second guide hole 301 is inserted into the second guide hole 301. The main oil circuit guide block 2 is also formed with multiple oil channels, and the input and output ends of the multiple oil channels are respectively connected to the first quick-connect mounting hole 203 and the first oil circuit mounting hole 204.

[0029] In the above structure, the attachment bracket 1 is fixedly connected to the attachment with the power unit at the bottom, the oil circuit guide block 3 is fixed to the data through the oil circuit guide component fixing bracket 4, and the oil circuit pipeline is fixedly connected through the elbow.

[0030] The oil circuit connection component fixing bracket 4 has a U-shaped structure. One half of the wall of the oil circuit connection component fixing bracket 4 has a vertical through second bolt hole 401, and the other half of the wall has a vertical non-through spring hole 402. A spring is pressed into the spring hole 402. The spring is used to buffer and fine adjust the position when the male and female oil circuit connection components are connected.

[0031] The outer walls of the oil passage guide block 3 are formed with fixing grooves 303 on both sides. The fixing grooves 303 are fixed to the U-shaped structure by bolts, and the bottom of the oil passage guide block 3 is in contact with the spring.

[0032] The first quick-connect mounting hole 203 is sealed with a female quick-connect coupling 201, and the second quick-connect mounting hole 305 is sealed with a male quick-connect coupling 304. The female quick-connect coupling 201 and the male quick-connect coupling 304 are compatible for mating. The male quick-connect coupling 304 and the female quick-connect coupling are common plug-in quick-connect couplings, suitable for connecting oil pipelines.

[0033] The first oil circuit mounting hole 204 is connected to the oil circuit control valve of the robotic arm through an elbow, and the second oil circuit mounting hole 306 is connected to the oil circuit pipeline of the power attachment through an external seal. The oil circuit control valve is the oil circuit control center of the excavator robotic arm, used to control the circulation of the oil circuit driving the power attachment.

[0034] The outer wall of the mother oil circuit guide block 2 is also provided with a 2-3cm positioning hole 202. A positioning pin is inserted into the positioning hole 202. The four corners of the mother oil circuit guide block 2 are formed with first bolt holes 206. The positioning pin is used to temporarily position the mother oil circuit guide block 2 during installation, which can improve the installation accuracy and facilitate the male oil circuit guide block 3 to reduce errors and prevent damage during actual docking.

[0035] The oil circuit guide assembly fixing bracket 4 is fixed to the attachment bracket 1 by inserting bolts through the second bolt hole 401. The top of the mother oil circuit guide block 2 is also provided with a machining hole that communicates with the internal oil passage, which serves to set up a bend pipe to adjust the pressure of the internal oil passage. In actual use, a sealing structure is set at the top of the machining hole to maintain the seal.

[0036] The working principle of this device is as follows:

[0037] When this device is in use, the main oil circuit guide block 2 is installed on the attachment connector of the robotic arm through the first bolt hole 206, and the first oil circuit mounting hole 204 is connected to the main oil circuit control valve of the excavator. The female quick connector 201 is inserted into the first quick connector mounting hole 203, the guide rod is fixedly inserted into the first guide hole 205, and the positioning pin is inserted into the positioning hole 202 for positioning, so as to minimize the installation position deviation of the main oil circuit guide block 2.

[0038] The male oil circuit guide block 3 is fixed to the inner wall of the oil circuit guide component fixing frame 4 through the fixing groove 303, and a spring is clamped between the bottom of the male oil circuit guide block 3 and the oil circuit guide component fixing frame 4. The oil circuit guide component fixing frame 4 is installed on the attachment bracket 1 through the second bolt hole 401. The oil circuit pipe connecting the attachment power unit is inserted into the second oil circuit mounting hole 306, and the male quick connector 304 is inserted into the second quick mounting hole.

[0039] When the robotic arm is installing attachments, the connector snaps into the attachment bracket 1, pushing the attachment bracket 1 to move. At the same time, the male oil circuit guide block 3 moves and slides into the guide rod 5 through the guide groove 302, and is inserted into the second guide hole 301. This allows for precise positioning of the male quick connector 304 and the female quick connector, enabling rapid docking. It also connects the oil circuit of the power unit on the power attachment to the oil circuit pipeline of the robotic arm's main idle valve.

[0040] The above structure allows for quick and accurate connection of the hydraulic circuit during the installation of power attachments.

[0041] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

[0042] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

Claims

1. An automatic hydraulic circuit connection device for power attachments, comprising an attachment bracket (1), characterized in that: The inner bottom of the attachment bracket (1) is fixed with an oil passage connecting component fixing frame (4), and a male oil passage connecting block (3) is fixed in the U-shaped groove of the oil passage connecting component fixing frame (4). A female oil passage connecting block (2) is correspondingly provided on the outer side of the male oil passage connecting block (3). The top of the public oil passage guide block (3) is formed with a guide groove (302), and one end of the guide groove (302) is provided with a second guide hole (301). The interior of the public oil passage guide block (3) is formed with multiple oil passages, and the input and output ends of the multiple oil passages are respectively connected to a second quick-connect mounting hole (305) and a second oil passage mounting hole (306). The main oil circuit guide block (2) is formed with a first guide hole (205), and a guide rod (5) that slides with both the guide groove (302) and the second guide hole (301) is inserted into the second guide hole (301). The main oil circuit guide block (2) is also formed with multiple oil channels, and the input and output ends of the multiple oil channels are respectively connected to the first quick-connect mounting hole (203) and the first oil circuit mounting hole (204).

2. The automatic hydraulic circuit connection device for power attachments according to claim 1, characterized in that: The oil circuit connection component fixing bracket (4) has a U-shaped structure. One half of the oil circuit connection component fixing bracket (4) has a vertically penetrating second bolt hole (401), and the other half of the wall has a vertically non-penetrating spring hole (402). A spring is pressed into the spring hole (402).

3. The automatic hydraulic circuit connection device for power attachments according to claim 2, characterized in that: The outer walls of the oil passage guide block (3) are formed with fixing grooves (303), the fixing grooves (303) are fixed to the U-shaped structure by bolts, and the bottom of the oil passage guide block (3) is in contact with the spring.

4. The automatic hydraulic circuit connection device for power attachments according to claim 3, characterized in that: A female quick connector (201) is sealed and inserted into the first quick-connect mounting hole (203), and a male quick connector (304) is sealed and inserted into the second quick-connect mounting hole (305). The female quick connector (201) and the male quick connector (304) are adapted to be connected.

5. The automatic hydraulic circuit connection device for power attachments according to claim 4, characterized in that: The first oil circuit mounting hole (204) is connected to the oil circuit control valve of the robotic arm through an elbow, and the second oil circuit mounting hole (306) is connected to the oil circuit pipeline of the power attachment through an external seal.

6. The automatic hydraulic circuit connection device for power attachments according to claim 5, characterized in that: The outer wall of the main oil passage guide block (2) is also provided with a positioning hole (202) of 2-3cm. A positioning pin is inserted into the positioning hole (202). The four corners of the main oil passage guide block (2) are formed with first bolt holes (206).

7. The automatic hydraulic circuit connection device for power attachments according to claim 6, characterized in that: The oil circuit guide assembly fixing bracket (4) is fixed to the attachment bracket (1) by inserting bolts through the second bolt hole (401).