Discharging door with limiting proximity switch

Abstract

The utility model discloses a discharging door with a limiting proximity switch, and relates to the field of discharging doors. The discharging door with the limiting proximity switch comprises a discharging door body, a driving unit and a limiting switch unit are arranged on the side face of the discharging door body, and the limiting switch unit is connected with the driving unit. The limiting switch unit comprises a support fixed to the discharging door body, a plurality of proximity switches arranged on the support at equal intervals and an induction plate arranged above the proximity switches, and the induction plate coincides with the different proximity switches so that different operation states of the discharging door body can be controlled. The driving unit comprises an oil cylinder, a horizontal hydraulic station, an electromagnetic valve, a hydraulic telescopic rod and a swing rod. According to the discharge door with the limiting proximity switches, when the induction plate coincides with the proximity switches at different positions, different operation states of the discharge door body can be accurately controlled, the position control precision of the discharge door is greatly improved, and various production requirements with high position control requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of unloading gate technology, specifically an unloading gate with a limit proximity switch. Background Technology

[0002] In many fields such as industrial production and material handling, unloading gates are key equipment components used to control the discharge and storage of materials. However, traditional unloading gates often face difficulties in precisely controlling their position during operation.

[0003] Currently, some unloading gates rely solely on simple mechanical limit devices for position control. This method has low precision and is insufficient for production scenarios with high requirements for unloading gate position control. Furthermore, mechanical limit devices are prone to wear and loosening during long-term use, leading to inaccurate positioning, which in turn affects the normal operation of the unloading gate and may even cause equipment failure and safety accidents. Therefore, developing an unloading gate with limit proximity switches that can effectively solve the above problems is of significant practical importance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a discharge gate with a limit proximity switch. This solves the problem that some discharge gates rely solely on simple mechanical limit devices for position control, which has low precision and is unsuitable for production scenarios with high requirements for discharge gate position control. Furthermore, mechanical limit devices are prone to wear and loosening during long-term use, leading to inaccurate positioning, affecting the normal operation of the discharge gate, and potentially causing equipment malfunctions and safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A discharge gate with a limit proximity switch includes a discharge gate body, a drive unit and a limit switch unit are provided on the side of the discharge gate body, the limit switch unit is connected to the drive unit, and the limit switch unit includes:

[0006] The bracket is fixedly connected to the unloading gate body;

[0007] A proximity switch, wherein multiple proximity switches are provided and are equidistantly arranged on the bracket, and the proximity switches are used to control the operating position of the unloading gate body;

[0008] The sensing plate is positioned above the proximity switch. When the sensing plate coincides with the proximity switch at different positions, it can control different operating states of the unloading gate body.

[0009] Preferably, the driving unit includes:

[0010] Hydraulic cylinder;

[0011] A horizontal hydraulic power unit, wherein the horizontal hydraulic power unit is located on one side of the oil cylinder;

[0012] A solenoid valve is disposed between the oil cylinder and the horizontal hydraulic station;

[0013] A hydraulic telescopic rod, the top end of which is rotatably connected to the unloading gate body;

[0014] A swing arm, one end of which is rotatably connected to the bottom end of a hydraulic telescopic rod.

[0015] Preferably, the horizontal hydraulic station is provided with a connecting pipe, and the horizontal hydraulic station is connected to the hydraulic telescopic rod through the connecting pipe.

[0016] Preferably, a rotating rod is fixedly connected to the other end of the swing arm, and the rotating rod is rotatably connected to the unloading gate body.

[0017] Preferably, the limit switch unit further includes a connecting rod, one end of which is fixedly connected to the swing arm.

[0018] Preferably, the other end of the connecting rod is fixedly connected to the sensing plate.

[0019] Preferably, the proximity switch is equipped with a sensing head, which, in conjunction with the sensing plate, enables the operation of the unloading gate body.

[0020] This utility model discloses a discharge gate with a limit proximity switch, which has the following beneficial effects:

[0021] This unloading gate with limit proximity switches, by setting multiple equally spaced proximity switches on the side of the unloading gate body, and a corresponding sensing plate, can accurately control different operating states of the unloading gate body when the sensing plate coincides with proximity switches at different positions, greatly improving the accuracy of unloading gate position control and meeting various production needs with high position control requirements. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the drive unit structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the limit switch unit structure of this utility model.

[0026] In the diagram: 1. Unloading gate body; 2. Drive unit; 21. Oil cylinder; 22. Horizontal hydraulic station; 23. Solenoid valve; 24. Hydraulic telescopic rod; 25. Swing rod; 3. Limit switch unit; 31. Bracket; 32. Proximity switch; 33. Sensing plate; 34. Connecting rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This utility model discloses a discharge gate with a limit proximity switch.

[0029] Example 1: According to the appendix Figure 1-3 As shown, the device includes a discharge gate body 1. A drive unit 2 and a limit switch unit 3 are provided on the side of the discharge gate body 1. The limit switch unit 3 is connected to the drive unit 2 and includes:

[0030] The bracket 31 is fixedly connected to the unloading gate body 1;

[0031] Proximity switch 32, multiple proximity switches 32 are provided and are equidistantly arranged on bracket 31. The proximity switches 32 are used to control the operating position of unloading gate body 1.

[0032] The sensing plate 33 is positioned above the proximity switch 32. When the sensing plate 33 coincides with the proximity switch 32 at different positions, it can control different operating states of the unloading gate body 1.

[0033] Furthermore, the drive unit 2 includes:

[0034] Hydraulic cylinder 21;

[0035] A horizontal hydraulic station 22 is located on one side of the oil cylinder 21;

[0036] Solenoid valve 23 is located between oil cylinder 21 and horizontal hydraulic station 22;

[0037] The top end of the hydraulic telescopic rod 24 is rotatably connected to the unloading gate body 1;

[0038] The swing arm 25 has one end rotatably connected to the bottom end of the hydraulic telescopic rod 24.

[0039] Furthermore, the horizontal hydraulic station 22 is equipped with a connecting pipe, and the horizontal hydraulic station 22 is connected to the hydraulic telescopic rod 24 through the connecting pipe.

[0040] Furthermore, a rotating rod is fixedly connected to the other end of the swing arm 25, and the rotating rod is rotatably connected to the unloading gate body 1. Hydraulic oil is supplied to the cylinder 21 through the horizontal hydraulic station 22. The solenoid valve 23 controls the flow direction and flow rate of the hydraulic oil, thereby controlling the movement of the piston in the cylinder 21. When the solenoid valve 23 is opened, hydraulic oil enters the cylinder 21, pushing the piston to move, which in turn drives the hydraulic telescopic rod 24 to extend and retract. The top end of the hydraulic telescopic rod 24 is rotatably connected to the unloading gate body 1, one end of the swing arm 25 is rotatably connected to the bottom end of the hydraulic telescopic rod 24, and the other end of the swing arm 25 is rotatably connected to the unloading gate body 1 through the rotating rod. When the hydraulic telescopic rod 24 extends and retracts, it drives the swing arm 25 to swing, thereby driving the unloading gate body 1 to open or close.

[0041] Example 2: According to the appendix Figure 1-3 As shown, the device includes a discharge gate body 1. A drive unit 2 and a limit switch unit 3 are provided on the side of the discharge gate body 1. The limit switch unit 3 is connected to the drive unit 2 and includes:

[0042] The bracket 31 is fixedly connected to the unloading gate body 1;

[0043] Multiple proximity switches 32 are provided and are equidistantly arranged on the bracket 31. The proximity switches 32 are used to control the operating position of the unloading gate body 1. As a non-contact detection element, the proximity switch 32 has the advantages of fast response speed, high reliability and long service life. Compared with traditional mechanical limit devices, it reduces the phenomenon of inaccurate limit due to wear, loosening and other problems, thereby improving the stability of the unloading gate operation and reducing the equipment failure rate and maintenance costs.

[0044] The sensing plate 33 is positioned above the proximity switch 32. When the sensing plate 33 coincides with the proximity switch 32 at different positions, it can control different operating states of the unloading gate body 1.

[0045] Furthermore, the limit switch unit 3 also includes a connecting rod 34, one end of which is fixedly connected to the swing rod 25.

[0046] Furthermore, the other end of the connecting rod 34 is fixedly connected to the sensing plate 33. The sensing plate 33 is fixedly connected to the swing arm 25 via the connecting rod 34 and moves as the swing arm 25 swings. When the unloading gate body 1 runs under the action of the drive unit 2, the sensing plate 33 also moves accordingly. When the sensing plate 33 moves to a position corresponding to the sensing head of a proximity switch 32, the proximity switch 32 will detect the presence of the sensing plate 33, generate a signal, and transmit the signal to the control system. The control system determines the current position of the unloading gate body 1 based on the received signal and controls the operating state of the unloading gate body 1 accordingly, realizing three operating states of the unloading gate body 1: fully open, fully closed, and half open, thereby achieving precise control of the unloading gate body 1 at different positions.

[0047] Furthermore, the proximity switch 32 is equipped with a sensing head, which, in conjunction with the sensing plate 33, enables the operation of the unloading gate body 1. By arranging multiple equidistant proximity switches 32 and corresponding sensing plates 33 on the side of the unloading gate body 1, different operating states of the unloading gate body 1 can be precisely controlled when the sensing plate 33 coincides with proximity switches 32 at different positions. This greatly improves the accuracy of unloading gate position control and meets various production needs with high position control requirements.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A discharge door with a limit proximity switch, comprising a discharge door body (1), characterized in that, The unloading gate body (1) is provided with a drive unit (2) and a limit switch unit (3) on its side. The limit switch unit (3) is connected to the drive unit (2). The limit switch unit (3) includes: A bracket (31) is fixedly connected to the unloading gate body (1); A proximity switch (32) is provided, and multiple proximity switches (32) are equidistantly arranged on the bracket (31). The proximity switches (32) are used to control the operating position of the unloading gate body (1). The sensing plate (33) is located above the proximity switch (32). The sensing plate (33) can control different operating states of the unloading gate body (1) by coinciding with the proximity switch (32) at different positions.

2. The access door with limit proximity switch of claim 1, wherein, The driving unit (2) includes: Hydraulic cylinder (21); A horizontal hydraulic station (22) is located on one side of the oil cylinder (21); Solenoid valve (23) is disposed between oil cylinder (21) and horizontal hydraulic station (22); A hydraulic telescopic rod (24) is rotatably connected at its top end to the unloading gate body (1); A swing arm (25), one end of which is rotatably connected to the bottom end of a hydraulic telescopic rod (24).

3. A discharge door with limit proximity switches as claimed in claim 2, wherein, The horizontal hydraulic station (22) is equipped with a connecting pipe, and the horizontal hydraulic station (22) is connected to the hydraulic telescopic rod (24) through the connecting pipe.

4. The access door with limit proximity switch of claim 2, wherein, The other end of the swing arm (25) is fixedly connected to a rotating rod, which is rotatably connected to the unloading gate body (1).

5. The access door with limit proximity switch of claim 1, wherein, The limit switch unit (3) also includes a connecting rod (34), one end of which is fixedly connected to the swing rod (25).

6. A discharge door with limit proximity switches as claimed in claim 5 wherein, The other end of the connecting rod (34) is fixedly connected to the sensing plate (33).

7. The access door with limit proximity switch of claim 1, wherein, The proximity switch (32) is equipped with a sensing head, which, together with the sensing plate (33), enables the operation of the unloading gate body (1).

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