Hydraulic unloading structure and mounting system

Abstract

The utility model relates to the technical field of pressure relief of hydraulic pipeline systems, in particular to a hydraulic unloading structure and an installation system, which comprises a connecting assembly, the connecting assembly comprises a first executing piece and a second executing piece which are in butt joint with each other, and the second executing piece is connected with a load loosening piece; the load releasing part comprises a pressure relief valve, a hydraulic oil tank is arranged on one side of the pressure relief valve, the pressure relief valve is arranged on one side of the oil outlet of the O-shaped hydraulic control valve, pressure relief operation of pipeline butt joint can be achieved, and the diversity of function selection of the hydraulic control valve is increased.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipeline system pressure relief technology, and in particular to a hydraulic unloading structure and installation system. Background Technology

[0002] Currently, when disassembling and assembling the pole grabber of the power distribution network operation integrated machine, it is necessary to connect the hydraulic hose. When connecting the quick male and female connectors, hydraulic pressure will be generated in the hydraulic pipeline. Because there is no hydraulic system to release the pressure, it is difficult to connect and assemble the two.

[0003] In the existing technical solutions, one is to achieve pressure relief by connecting directly through quick couplings, which has the problem of hydraulic oil leakage. Another solution is that the hydraulic control valve must be a "Y" type valve, which can achieve pressure relief, but cannot be an "O" type valve, which limits the application range of the hydraulic control valve.

[0004] Based on the above-mentioned technical problems, we propose a hydraulic unloading structure and installation system. Utility Model Content

[0005] In view of the above problems, a hydraulic unloading structure is proposed in this utility model.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hydraulic unloading structure, comprising a connecting assembly, the connecting assembly including a first actuator and a second actuator that are mated to each other, the second actuator being connected to a load-releasing component; the load-releasing component including a pressure relief valve, one side of which is provided with a hydraulic oil tank; the first actuator including a hydraulic hose, one side of which is connected to a quick-connect female connector; and the second actuator including an O-type hydraulic control valve, the O-type hydraulic control valve including two oil outlets.

[0007] As a preferred embodiment of the hydraulic unloading structure described in this utility model, quick-connect male connectors are connected to one side of each of the two oil outlets.

[0008] As a preferred embodiment of the hydraulic unloading structure of this utility model, two hydraulic hoses are provided, and one side of each of the two hydraulic hoses is connected to a quick-connect female connector.

[0009] In a preferred embodiment of the hydraulic unloading structure of this utility model, the two quick-change male connectors and the two quick-change female connectors are connected in a one-to-one correspondence.

[0010] In a preferred embodiment of the hydraulic unloading structure of this utility model, the other side of the pressure relief valve is connected between the quick-change male connector and the oil outlet.

[0011] As a preferred embodiment of the hydraulic unloading structure of this utility model, there are two pressure relief valves, and the two pressure relief valves are connected to the two oil outlets one by one.

[0012] In view of the above problems, the installation system of this utility model is proposed.

[0013] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an installation system, comprising a hydraulic unloading structure, and further comprising a gripping cylinder located on a utility pole gripper; and wherein the gripping cylinder has large and small cavities, and the large and small cavities on the gripping cylinder are connected one-to-one with two hydraulic hoses in a connecting assembly.

[0014] In a preferred embodiment of the installation system described in this utility model, the energization and de-energization of the pole grabber are synchronously controlled with the energization and de-energization of the pressure relief valve.

[0015] The beneficial effects of this utility model are as follows: by setting a pressure relief valve, when it is necessary to connect the hydraulic hose, the control machine is powered off, so that the pressure relief valve is powered off and connected to the hydraulic oil tank to achieve unloading. At this time, the pressure of the two oil outlets of the O-type hydraulic control valve is zero, reducing the difficulty of quick male and female connection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the installation system connection in this utility model. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0021] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0022] Example 1

[0023] Reference Figure 1 This is the first embodiment of the present utility model. This embodiment provides a hydraulic unloading structure, which includes a connecting component 100. The connecting component 100 includes a first actuator 101 and a second actuator 102 that are docked to each other. A load-releasing component 103 is connected to the second actuator 102. The load-releasing component 103 includes a pressure relief valve 103a. A hydraulic oil tank 103b is provided on one side of the pressure relief valve 103a.

[0024] When the hydraulic lines of the first actuator 101 and the second actuator 102 are connected, the system pressure is released by setting the unloading element 103 and using the pressure relief valve 103a. The oil will flow back to the oil tank through the discharge port, releasing the system pressure, making it easier for the first actuator 101 and the second actuator 102 to connect.

[0025] The pressure relief valve 103a mainly controls the pressure in the hydraulic system to prevent excessive pressure from damaging the system. When the system pressure is high, the pressure relief valve 103a can allow excess oil to flow back to the hydraulic oil tank 103b, releasing the pressure and reducing the difficulty of connecting and assembling hydraulic pipelines. The pressure relief valve 103a is usually directly connected to the hydraulic oil tank 103b through a pipeline, which can ensure that the pressurized oil can flow back smoothly and maintain the safe and stable operation of the system.

[0026] In summary, the unloading component 103 is mainly used to relieve pressure when the first actuator 101 and the second actuator 102 are docked together, so as to reduce assembly difficulties and hydraulic oil leakage.

[0027] Example 2

[0028] Reference Figure 1This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the first actuator 101 includes a hydraulic hose 101a, and a quick-change female connector 101b is connected to one side of the hydraulic hose 101a.

[0029] Preferably, the second actuator 102 includes an O-type hydraulic control valve 102a, and the O-type hydraulic control valve 102a includes two outlet ports 102a-1.

[0030] The proposed solution allows the use of an O-type hydraulic control valve 102a, which, in conjunction with the pressure relief valve 103a, can to some extent avoid the limitation of hydraulic control valve function selection.

[0031] The outlet port 102a-1 of the O-type hydraulic control valve 102a is as follows: Figure 1 Points A and B as indicated in the text.

[0032] Preferably, quick-change male connectors 102b are connected to one side of each of the two oil outlets 102a-1.

[0033] Preferably, there are two hydraulic hoses 101a, and one side of each hydraulic hose 101a is connected to a quick-connect female connector 101b.

[0034] Preferably, the two quick-connect male connectors 102b and the two quick-connect female connectors 101b are connected in a one-to-one correspondence.

[0035] The first actuator 101 and the second actuator 102 are mainly connected by the insertion of quick-connect female connector 101b and quick-connect male connector 102b. Specifically, quick-connect female connector 101b and quick-connect male connector 102b play the role of quickly connecting and disconnecting the hydraulic pipeline when it is connected. The specific structure of quick-connect female connector 101b and quick-connect male connector 102b has been well recorded in the prior art and will not be elaborated in detail in this case.

[0036] Preferably, the other side of the pressure relief valve 103a is connected between the quick-change male connector 102b and the oil outlet 102a-1.

[0037] Preferably, there are two pressure relief valves 103a, and the two pressure relief valves 103a are connected to the two oil outlets 102a-1 in a one-to-one correspondence.

[0038] There are two pressure relief valves 103a, which control two oil circuits respectively.

[0039] When the unloading valve 103a is energized, such as Figure 1As shown, A2 and B2 are independently locked and not connected to the hydraulic oil tank 103b. When the unloading valve 103a is de-energized, A2 and B2 are connected to the hydraulic oil tank 103b, thereby achieving unloading and making the pressure at ports A and B of the O-type hydraulic control valve 102a zero. At this time, during the insertion process of the quick-connect female connector 101b and the quick-connect male connector 102b, all ports are connected, achieving the purpose of quick-connect connection and reducing the operational difficulties for workers in connecting the two pipelines.

[0040] In summary, by de-energizing the pressure relief valve 103a, the hydraulic oil tank 103b is connected, thereby unloading the two oil circuits connected to it. Then, through the cooperation of the quick-change female connector 101b and quick-change male connector 102b, quick assembly can be easily achieved. This connection method also allows the O-type hydraulic control valve 102a to be used.

[0041] Example 3

[0042] Reference Figure 1 This is the third embodiment of the present invention. This embodiment provides an installation system, which includes a gripping cylinder 200 located on a pole gripper; and the gripping cylinder 200 has large and small cavities, and the large and small cavities on the gripping cylinder 200 are connected one-to-one with two hydraulic hoses 101a in the connecting assembly 100.

[0043] The connecting component 100 is used in the integrated distribution network operation and is mainly used for the quick loading and unloading of the pole grabber. The large and small chambers of the grabber cylinder 200 are connected to the quick-change female connector 101b through two hydraulic hoses 101a.

[0044] Preferably, the energization and de-energization of the pole grabber are synchronously controlled with the energization and de-energization of the pressure relief valve 103a.

[0045] The unloading valve 103a is powered on and off together with the machine; when the power is off, hydraulic oil enters the hydraulic oil tank 103b to achieve pressure relief; when the power is on, the pressure relief valve 103a will then lock the pressure relief function.

[0046] The main implementation process is as follows: When the first actuator 101 and the second actuator 102 need to be connected, the quick-connect female connector 101b and the quick-connect male connector 102b need to be inserted into each other. However, due to the relative locking of the large and small chambers of the gripper cylinder 200, the two oil ports are as follows: Figure 1 At points A1 and B1, as shown, hydraulic oil cannot enter or exit, resulting in the inability to release hydraulic pressure within hydraulic hose 101a; on the other side, because of the two outlet ports 102a-1 of the O-type hydraulic control valve 102a, such as Figure 1Points A and B are independently locked, preventing oil discharge. When the machine is powered off, the pressure relief valve 103a is de-energized. The power on / off of the entire machine is synchronized with the power on / off of the unloading valve, connecting oil ports A2 and B2 on the pressure relief valve 103a to the hydraulic oil tank 103b. When the quick-change female connector 101b and quick-change male connector 102b are inserted, they are pressurized, causing pressure to be generated inside the hydraulic hose 101a. Because the quick-change female connector 101b and quick-change male connector 102b are inserted, oil ports A, A1, and A2 are also connected, as are B... B1 and B2 are interconnected. Under the de-energization control of the pressure relief valve 103a, all oil ports are connected to the hydraulic oil tank 103b, which unloads the pressure oil generated during the insertion of the quick-change female connector 101b and quick-change male connector 102b, and finally enables the quick-change female connector 101b and quick-change male connector 102b to be successfully inserted. When the machine is powered on and started, the pressure relief valve 103a is energized, cutting off the return oil from ports A and B of the O-type hydraulic control valve 102a, and ports A2 and B2 are locked and no longer connected to the hydraulic oil tank 103b.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hydraulic unloading structure, characterized in that: include, A connecting assembly (100) includes a first actuator (101) and a second actuator (102) that are mated to each other. A load-releasing member (103) is connected to the second actuator (102). The load-releasing member (103) includes a pressure relief valve (103a) and a hydraulic oil tank (103b) is provided on one side of the pressure relief valve (103a). The first actuator (101) includes a hydraulic hose (101a), one side of which is connected to a quick-connect female connector (101b); and, The second actuator (102) includes an O-type hydraulic control valve (102a), and the O-type hydraulic control valve (102a) includes two outlets (102a-1).

2. The hydraulic unloading structure as described in claim 1, characterized in that: Each of the two oil outlets (102a-1) is connected to a quick-change male connector (102b) on one side.

3. The hydraulic unloading structure as described in claim 2, characterized in that: Two hydraulic hoses (101a) are provided, and one side of each hydraulic hose (101a) is connected to a quick-connect female connector (101b).

4. The hydraulic unloading structure as described in claim 3, characterized in that: The two quick-connect male connectors (102b) and the two quick-connect female connectors (101b) are connected in a one-to-one correspondence.

5. The hydraulic unloading structure as described in claim 4, characterized in that: The other side of the pressure relief valve (103a) is connected between the quick-change male connector (102b) and the oil outlet (102a-1).

6. The hydraulic unloading structure as described in claim 1 or 5, characterized in that: There are two pressure relief valves (103a), and the two pressure relief valves (103a) are connected to the two oil outlets (102a-1) one by one.

7. An installation system, characterized in that: Including the hydraulic unloading structure as described in any one of claims 1 to 6, it further includes a gripper cylinder (200) located on the pole gripper; and, The gripper cylinder (200) has large and small cavities, and the large and small cavities on the gripper cylinder (200) are connected one-to-one with the two hydraulic hoses (101a) in the connecting assembly (100).

8. The installation system as described in claim 7, characterized in that: The energization and de-energization of the pole grabber are synchronously controlled with the energization and de-energization of the pressure relief valve (103a).

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