Functional valve group of cylindrical overhead working truck

Abstract

The utility model provides a cylindrical overhead working truck functional valve group which comprises a valve body, a flow valve, a plurality of electromagnetic valves, a plurality of overflow valves and a first working oil port are installed on the first surface of the valve body, a plurality of second working oil ports are installed on the second surface of the valve body, and a third working oil port is installed on the third surface of the valve body. The multiple electromagnetic valves and the first working oil port are arranged on one side of the first surface, and the multiple overflow valves are arranged on the other side of the first surface. The first surface, the second surface and the third surface intersect at one point. The functional valve and the working oil port are integrated on one valve body, so that compact layout is facilitated, the size is reduced, and maintenance and replacement are convenient and fast.

Description

Technical Field

[0001] This utility model relates to the technical field of valve groups, specifically to a functional valve group for a cylindrical aerial work platform. Background Technology

[0002] Aerial work platforms, also known as tube lifts, are common types of aerial work equipment. Their lightweight structure and flexible operation make them suitable for use in narrow passageways and spaces, such as warehouses and supermarkets. Safety and flexibility are paramount during operation. The functional valve assembly is a crucial component of the tube lift; its compact design, light weight, and ease of maintenance and replacement make it more suitable for the unique working conditions of tube lifts compared to other solutions.

[0003] A Chinese patent with publication number CN117780706A discloses a modular multi-way valve and its oil circuit system, including an inlet / return oil connection, several working connections, and a terminal connection; the working connections are located between the inlet / return oil connection and the terminal connection; the inlet / return oil connection, the working connections, and the terminal connection are all interconnected; the inlet / return oil connection is provided with an oil inlet and an oil return port; the working connections are provided with multiple working oil ports; a directional valve is provided within the working connections, and the directional valve is connected to the working oil ports; a control component is detachably provided on the working connections, and the control component is dynamically connected to the valve core of the directional valve.

[0004] Existing technology installs the oil inlet, oil return, overflow valve, and solenoid valve in different locations, adopting a decentralized layout, which occupies a large volume and makes maintenance and replacement inconvenient. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a functional valve group for a cylindrical aerial work platform.

[0006] According to the present invention, a functional valve group for a cylindrical aerial work vehicle includes a valve body. A flow valve, multiple solenoid valves, multiple overflow valves and a first working oil port are installed on the first surface of the valve body. Multiple second working oil ports are installed on the second surface of the valve body and a third working oil port is installed on the third surface of the valve body.

[0007] Multiple solenoid valves and a first working oil port are disposed on one side of the first surface, and multiple overflow valves and an overflow valve are disposed on the other side of the first surface;

[0008] The first surface, the second surface, and the third surface intersect at a point.

[0009] Preferably, the solenoid valve includes a first solenoid valve and a second solenoid valve, which are disposed adjacent to each other on one side of the first surface.

[0010] Preferably, the first working port includes a system pressure testing port, one side of which is close to the edge of the first surface, and the other side of which is adjacent to the second solenoid valve.

[0011] Preferably, the overflow valve includes a first overflow valve and a second overflow valve, which are disposed adjacent to each other on the other side of the first surface.

[0012] Preferably, one side of the flow valve is close to the edge of the first surface, the other side of the flow valve is adjacent to the first relief valve, and the flow valve is diagonally arranged with the system pressure measuring port.

[0013] Preferably, the second working oil port includes a first wheel steering oil port, a second wheel steering oil port, a system return oil port, and a work platform lifting oil port;

[0014] The first wheel steering oil port and the second wheel steering oil port are located on one side of the second surface, and the system return oil port and the work rail lifting oil port are located on the other side of the second surface.

[0015] Preferably, the third working oil port includes a system oil inlet, which is located on one side of the third surface and is positioned close to the first working oil port.

[0016] Preferably, the first surface is disposed on the top of the valve body, the second surface is disposed on the first side of the valve body, and the third surface is disposed on the second side of the valve body, with the first side and the second side being adjacent to each other.

[0017] Preferably, the first surface, the second surface, and the third surface are each provided with a plurality of process plugs, and the plurality of process plugs are dispersedly distributed on the first surface, the second surface, and the third surface.

[0018] Preferably, the valve body comprises a cuboid.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This utility model integrates the functional valve and working oil port into one valve body, which is conducive to a compact layout, reducing the size and making maintenance and replacement convenient;

[0021] 2. This utility model integrates the functional valve and the working oil port on adjacent surfaces of a valve body, making the layout of multiple valves more compact;

[0022] 3. By setting the large solenoid valve and the relief valve separately on a main surface, this utility model is beneficial to integrate multiple functional valves on this main surface while also setting smaller flow valves or working oil ports, making the layout of multiple functional valves more compact. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of the valve assembly that mainly embodies the functions of this utility model;

[0025] Figure 2 This is a top view of the valve assembly that mainly embodies the functions of this utility model;

[0026] Figure 3 This is the main view of the functional valve assembly of this utility model;

[0027] Figure 4 This is a right view of the main functional valve assembly of this utility model.

[0028] In the picture:

[0029] Valve body 1 System oil inlet P

[0030] First solenoid valve 2 System pressure test port M

[0031] Second solenoid valve 3, first wheel steering port S1

[0032] First overflow valve 4 Second wheel steering oil port S2

[0033] Second overflow valve 5, working column lifting oil port L

[0034] Flow valve 6 System return port T

[0035] Process plug 7 Detailed Implementation

[0036] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0037] like Figure 1As shown, a functional valve group for a cylindrical aerial work platform provided by this utility model includes a valve body 1. A plurality of solenoid valves, a plurality of overflow valves, a flow valve 6 and a first working port are installed on the first surface of the valve body 1. A plurality of second working ports are installed on the second surface of the valve body 1. A third working port is installed on the third surface of the valve body 1. The plurality of solenoid valves and the first working port are located on one side of the first surface, and the plurality of overflow valves and flow valves 6 are located on the other side of the first surface. The first surface, the second surface and the third surface intersect at a point.

[0038] A functional valve assembly is a small circuit that serves as a carrier for various valves that are interconnected through related channels. The valve body 1 of this invention integrates a flow valve 6, multiple solenoid valves, multiple relief valves, and multiple working ports together, with multiple valves arranged on adjacent surfaces of the valve body 1, resulting in a compact layout, small size, and convenient maintenance and replacement.

[0039] Specifically, valve body 1 is the carrier of the valve, and the functional valves and working ports installed on it can achieve direction, pressure, and flow regulation. The valve body 1 of this invention can be a cuboid, a cube, or other shapes as the integrated block, with the multi-functional valves mounted on it, thus forming a functional valve assembly. When a cuboid is chosen as the valve body 1, the first and second surfaces are preferably larger cuboid surfaces, allowing for the installation of more functional valves and working ports.

[0040] Specifically, such as Figure 2 As shown, a flow valve 6, a first working port, multiple solenoid valves, and multiple relief valves are integrated on the first surface of the valve body 1. The solenoid valves include a first solenoid valve 2 and a second solenoid valve 3, which are arranged adjacent to each other on one side of the first surface. The first working port includes a system pressure measuring port M, with one side of the system pressure measuring port M close to the edge of the first surface and the other side of the system pressure measuring port M adjacent to the second solenoid valve 3. The relief valves include a first relief valve 4 and a second relief valve 5, which are arranged adjacent to each other on the other side of the first surface. One side of the flow valve 6 is close to the edge of the first surface, and the other side of the flow valve 6 is adjacent to the first relief valve 4. The flow valve 6 is diagonally arranged with the system pressure measuring port M.

[0041] Specifically, such as Figure 3 As shown, multiple second working ports are integrated on the second surface of the valve body 1. The second working ports include a first wheel steering port S1, a second wheel steering port S2, a system return port T, and a work platform lifting port L. The first wheel steering port S1 and the second wheel steering port S2 are located on one side of the second surface, and the system return port T and the work platform lifting port L are located on the other side of the second surface.

[0042] Specifically, such as Figure 4 As shown, the third working port is integrated on the third surface of the valve body 1. The third working port includes a system inlet port P, which is located on one side of the third surface and is close to the first working port.

[0043] Preferably, multiple process plugs 7 are provided on the first, second, and third surfaces, and the multiple process plugs 7 are distributed on the first, second, and third surfaces. For example, on the first surface, the process plugs 7 can be provided in the gap space enclosed by the first solenoid valve 2, the second solenoid valve 3, the first overflow valve 4, and the flow valve 6. For example, on the second surface, the process plugs 7 can be distributed between the side where the first wheel steering oil port S1 and the second wheel steering oil port S2 are located and the other side where the system return oil port T and the work rail lifting oil port L are located.

[0044] One feasible implementation method is as follows:

[0045] The functional valve group consists of a valve body 1, two solenoid valves (including a first solenoid valve 2 and a second solenoid valve 3), two relief valves (including a first relief valve 4 and a second relief valve 5), and a flow valve 6. The functional valve group has 6 working ports. When the first solenoid valve 2 is energized in the parallel position, the wheel turns left; when it is energized in the cross position, the wheel turns right. The flow valve 6 controls the steering speed. When the wheel reaches the end point, the first relief valve 4 operates to limit the maximum steering pressure. The second solenoid valve 3 is energized to lift the working platform of the aerial work platform. After the working platform is raised to the highest position, the second relief valve 5 operates to limit the maximum lifting pressure.

[0046] The first surface is located on the top of the valve body 1, and can be used to... Figure 1 and Figure 2 As seen in the diagram: On one side of the first surface near the second surface, from left to right, are arranged a first solenoid valve 2, a second solenoid valve 3, and a system oil inlet P; on the other side of the first surface, from left to right, are a flow valve 6, a first relief valve 4, and a second relief valve 5. The second surface is located on the first side of the valve body 1, which is the front of the valve body 1, and can... Figure 1 and Figure 3 As seen in the image: On one side of the second surface, from bottom to top, are sequentially arranged a first wheel steering port S1 and a second wheel steering port S2; on the other side of the second surface, from bottom to top, are sequentially arranged a system return port T and a work platform lifting port L. Several process plugs 7 are dispersed between one side and the other side of the second surface. The third surface is located on the second side of the valve body 1, which is the right side of the valve body 1. The first side is adjacent to the second side and can be... Figure 1 and Figure 4As can be seen: a system oil inlet P is provided on the third surface. The system oil inlet P is located on one side of the third surface, which is close to the working rail lifting oil inlet L and the system pressure measuring oil inlet M. Several process plugs 7 are scattered in other positions on the third surface.

[0047] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A functional valve group for a cylindrical aerial work platform, characterized in that, The valve body includes a flow valve, a plurality of solenoid valves, a plurality of relief valves and a first working port mounted on a first surface of the valve body, a plurality of second working ports mounted on a second surface of the valve body, and a third working port mounted on a third surface of the valve body. Multiple solenoid valves and a first working oil port are disposed on one side of the first surface, and multiple overflow valves and an overflow valve are disposed on the other side of the first surface; The first surface, the second surface, and the third surface intersect at a point.

2. The functional valve group of the cylindrical aerial work platform as described in claim 1, characterized in that, The solenoid valve includes a first solenoid valve and a second solenoid valve, which are arranged adjacent to each other on one side of the first surface.

3. The functional valve group of the cylindrical aerial work platform vehicle as described in claim 2, characterized in that, The first working port includes a system pressure testing port, one side of which is close to the edge of the first surface, and the other side of which is adjacent to the second solenoid valve.

4. The functional valve group of the cylindrical aerial work platform as described in claim 3, characterized in that, The overflow valve includes a first overflow valve and a second overflow valve, which are disposed adjacent to each other on the other side of the first surface.

5. The functional valve group of the tubular aerial work platform vehicle as described in claim 4, characterized in that, One side of the flow valve is close to the edge of the first surface, and the other side of the flow valve is adjacent to the first relief valve. The flow valve is diagonally positioned to the system pressure measuring port.

6. The functional valve group of the tubular aerial work platform as described in claim 1, characterized in that, The second working oil port includes a first wheel steering oil port, a second wheel steering oil port, a system return oil port, and a work platform lifting oil port; The first wheel steering oil port and the second wheel steering oil port are located on one side of the second surface, and the system return oil port and the work rail lifting oil port are located on the other side of the second surface.

7. The functional valve group of the cylindrical aerial work platform vehicle as described in claim 1, characterized in that, The third working oil port includes a system oil inlet, which is located on one side of the third surface and is positioned close to the first working oil port.

8. The functional valve group of the tubular aerial work platform vehicle as described in claim 1, characterized in that, The first surface is disposed on the top of the valve body, the second surface is disposed on the first side of the valve body, and the third surface is disposed on the second side of the valve body, with the first side and the second side being adjacent to each other.

9. The functional valve group of the cylindrical aerial work platform vehicle as described in claim 1, characterized in that, The first surface, the second surface, and the third surface are each provided with a plurality of process plugs, which are dispersedly distributed on the first surface, the second surface, and the third surface.

10. The functional valve group of the tubular aerial work platform vehicle as described in claim 1, characterized in that, The valve body comprises a cuboid.

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