Multi-way valve microswitch structure for position detection

Abstract

The utility model relates to the field of hydraulic multi-way valve control, in particular to a multi-way valve microswitch structure for position detection, which comprises a centering rear cover, a microswitch, a steel ball, a centering screw and a valve rod. A threaded oil port is formed in the centering rear cover, the microswitch is installed on the centering rear cover through the threaded oil port, and the centering screw is connected with the valve rod. After the microswitch is installed in place, the steel ball at the front end of the microswitch is opposite to the groove of the centering screw, and a certain distance is reserved between the steel ball and the groove. The structure does not need to be adjusted after being installed, the whole valve does not need to be adjusted after being installed, adjusting steps are omitted, the installation process is simplified, and time and labor are saved; the structure is installed in the centering rear cover, is sealed through the sealing ring and is not invaded by rainwater and the like, and the service life is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic multi-way valve control, in particular to a multi-way valve micro switch structure for position detection. Background Art

[0002] The multi-way valve is an essential component of the electric forklift. By setting a micro switch on the multi-way valve, the action is made more sensitive. The traditional structure is that the micro switch is installed at one end of the valve stem and fixed on the bracket by two nuts (such as Figure 2 (as shown). Traditional micro switches, designed to meet varying distance requirements, have limited space in the main unit and cramped installation space, making installation and adjustment time-consuming and labor-intensive. Furthermore, traditional micro switches are exposed to the outside of the valve body, making them susceptible to external interference and rainwater intrusion, leading to damage and failure. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-way valve micro switch structure for position detection, aiming to overcome the defects of the existing technology and solve the problems of limited host space, cramped installation space, and time-consuming and labor-intensive adjustment during installation. At the same time, the traditional structure micro switch is exposed to the outside of the valve body, which is easily disturbed by external forces or intrusion of rainwater, and is easily damaged and fails.

[0004] To this end, the utility model proposes a multi-way valve microswitch structure for position detection, including a centering rear cover, a microswitch, a steel ball, a centering screw and a valve stem; the centering rear cover is provided with a threaded oil port, the microswitch is installed on the centering rear cover through the threaded oil port, and the centering screw is connected to the valve stem; after installation, the steel ball at the front end of the microswitch is opposite to the groove of the centering screw and there is a distance between them.

[0005] As a preferred technical solution of the present application, a sealing ring is provided on the micro switch.

[0006] As a preferred technical solution of the present application, the micro switch is connected to the host power supply through an electric wire.

[0007] As a preferred technical solution of the present application, the groove of the centering screw has a trapezoidal slope.

[0008] As a preferred technical solution of the present application, the steel ball contacts the inclined surface of the centering screw.

[0009] The utility model provides a multi-way valve micro switch structure for position detection. The structure does not need to be adjusted after installation, and the entire valve does not need to be adjusted after installation, eliminating the adjustment steps, simplifying the installation process, saving time and effort; the structure is installed in the centering rear cover and is sealed by a sealing ring, so it is not invaded by rainwater, etc., and its service life is greatly extended.

[0010] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0012] Figure 1 This is a structural diagram of a multi-way valve micro switch structure for position detection of the present utility model;

[0013] Figure 2 This is a schematic diagram of a traditional multi-way valve micro switch structure used for position detection;

[0014] Explanation of the accompanying symbols: 1. Centering rear cover; 2. Micro switch; 3. Steel ball; 4. Centering screw; 5. Groove; 6. Valve stem; 7. Sealing ring; 8. Threaded oil port; 9. Nut; 10. Bracket; 11. Rear cover; 12. Connecting screw. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] like Figure 1 As shown, the multi-way valve microswitch structure for position detection of the present invention includes: a centering rear cover 1, a microswitch 2, a steel ball 3, a centering screw 4 and a valve stem 6; wherein, the centering rear cover 1 is provided with a threaded oil port 8, and the microswitch 2 is installed on the centering rear cover 1 through the threaded oil port 8; the microswitch 2 is connected to the host power supply through an electric wire.

[0017] Specifically, the plane of the threaded oil port 8 on the centering rear cover 1 is radially limited, and the centering screw 4 is connected to the valve stem 6; and after installation, the steel ball 3 at the front end of the micro switch 2 is at a distance from the groove 5 of the centering screw 4, ensuring that the micro switch is not energized when the valve stem 6 is not in motion and the main engine will not work.

[0018] Microswitch 2 is equipped with a sealing ring 7, which isolates the interior of centering cover 1 from external moisture and prevents rust. When the valve stem 6 is pushed or pulled, the steel ball 3 contacts the isosceles trapezoidal slope of the centering screw 4, compressing the steel ball 3 at the front of the microswitch 2 upward and connecting the internal circuit. The main engine then detects a current signal, driving the hydraulic pump to start operating, supplying oil to the multi-way valve and causing the actuator to perform related operations.

[0019] The working principle and working process of the multi-way valve micro switch structure for position detection of the present invention are briefly described below.

[0020] like Figure 2 As shown, in a conventional structure, a microswitch 2 is mounted on one end of a valve stem 6 and secured to a bracket 10 via two nuts 9. The other end of the valve stem 6 is connected to a rear cover 11 via a connecting screw 12. To meet varying distance requirements, conventional microswitch designs require limited space in the main unit, resulting in a tight installation space. Adjustment during installation is laborious and time-consuming. Furthermore, the traditional microswitch is exposed outside the valve body, making it susceptible to external interference and rainwater intrusion, leading to damage and failure.

[0021] like Figure 1 As shown, the structure of the present application does not require adjustment after installation, and the entire valve does not require adjustment after installation, eliminating the adjustment steps, simplifying the installation process, saving time and effort. The structure of the present application is installed in the centering rear cover and is sealed by the sealing ring, which is not affected by rainwater and other intrusions, greatly extending the service life.

[0022] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A multi-way valve micro switch structure for position detection, characterized in that: It includes a centering rear cover (1), a micro switch (2), a steel ball (3), a centering screw (4) and a valve stem (6); The centering rear cover (1) is provided with a threaded oil port (8), the micro switch (2) is mounted on the centering rear cover (1) through the threaded oil port (8), and the centering screw (4) is connected to the valve stem (6); and after being installed in place, the steel ball (3) at the front end of the micro switch (2) is opposite to the groove (5) of the centering screw (4) and there is a distance between them.

2. The multi-way valve micro switch structure for position detection according to claim 1, characterized in that: A sealing ring (7) is provided on the micro switch (2).

3. The multi-way valve micro switch structure for position detection according to claim 1, characterized in that: The micro switch (2) is connected to the host power supply via an electric wire.

4. The multi-way valve micro switch structure for position detection according to claim 1, characterized in that: The groove (5) of the centering screw (4) has a trapezoidal slope.

5. The multi-way valve micro switch structure for position detection according to claim 4, characterized in that: The steel ball (3) contacts the inclined surface of the centering screw (4).

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