Anti-clogging switch

Abstract

The utility model discloses a kind of anti-blocking switches, the utility model includes the opening and contact plate being opened in the side wall of the slide body, the slide body outer wall is welded with connecting plate, connecting plate is located outside the opening, the one side of connecting plate is provided with closure plate, the bottom outer wall of closure plate is equipped with limit switch, closure plate outer wall is fixed with soft sealing cover, limit switch is located in the space inside surrounded by soft sealing cover, the top outer wall of contact plate is fixed with top rod, top rod is below limit switch, the both ends of the top outer wall of contact plate are fixed with lifting lug, lifting lug is connected with closure plate by connecting rope;The utility model is provided with opening, contact plate and soft sealing cover, soft sealing cover is closed to the outside of limit switch, can avoid material and limit switch contact, and can be based on existing slide to be reformed, and waste material effectively utilized generated by reformation.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, and in particular to an anti-blocking switch. Background Technology

[0002] Clay is one of the raw materials for cement production. Due to its high moisture content and viscosity, material blockage often occurs in the conveyor during transportation. If it is not detected in time, the inside of the chute will become blocked, causing material to overflow at the feed inlet and accumulate, which will eventually lead to equipment shutdown and affect production.

[0003] To address the aforementioned issues, a search revealed Chinese Patent Publication No. CN204643092U, which discloses a material chute anti-blocking device. This device includes a material chute body with an anti-blocking component installed on one outer wall. By incorporating this anti-blocking component, a photoelectric switch can instantly cut off the power to the conveyor belt's drive motor, thus stopping the conveyor belt from transporting material. However, its anti-blocking component is connected to the feeding chute. When there is a blockage, some material will enter the mounting cavity of the photoelectric switch through the connecting hole between the anti-blocking component and the feeding chute. After multiple blockages, the material accumulates near the photoelectric switch, affecting the detection. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-blocking switch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anti-blocking switch includes an opening and a contact plate formed in the side wall of a chute body. A connecting plate is welded and fixed to the outer wall of the chute body, and the connecting plate is located outside the opening. A sealing plate is provided on one side of the connecting plate. A limit switch is installed on the bottom outer wall of the sealing plate. A soft sealing cover is fixed to the outer wall of the sealing plate. The limit switch is located inside the space enclosed by the soft sealing cover. A top rod is fixed to the top outer wall of the contact plate, and the top rod is located below the limit switch.

[0006] As a further improvement of this utility model: both ends of the top outer wall of the contact plate are fixed with lifting lugs, and the lifting lugs are connected to the closed plate by connecting ropes.

[0007] As a further improvement of this utility model, the opening is a rectangle of 20cm*20cm.

[0008] As a further improvement of this utility model: threaded holes are provided on the outer walls of the four corners of the connecting plate, and bolts are provided on the four corners of the sealing plate, with one end of the bolt engaging with the threaded hole.

[0009] As a further improvement of this utility model, a control plate is provided on the outer wall of the connecting plate.

[0010] As a further improvement of this utility model, status lights are provided on the outer wall of the control panel.

[0011] As a further improvement of this utility model: the outer wall of the closed plate has two through holes, and one end of the connecting rope passes through the through holes and is connected to a pull ring.

[0012] Compared with the prior art, the present invention provides an anti-blocking switch, which has the following beneficial effects: 1. This utility model, by providing an opening, a contact plate and a soft sealing cover, the soft sealing cover seals the outside of the limit switch, which can prevent materials from contacting the limit switch, and can be modified based on the existing chute, and effectively utilize the waste generated by the modification.

[0013] 2. This utility model incorporates status lights that use different lights to reflect the status of the conveyor body. This makes the status of the conveyor body visible, facilitating workers to determine its condition.

[0014] 3. This utility model, by providing a pull ring and a through hole, allows the contact plate to be pulled up during maintenance to test and verify the limit switch, eliminating the need for manual simulation of material blockage in the chute body to test the limit switch.

[0015] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-blocking switch proposed in this utility model; Figure 2 This is a schematic diagram of the structure of an anti-blocking switch contact plate proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the anti-blocking switch sealing plate and connecting plate proposed in this utility model; Figure 4 This is a side view of the anti-blocking switch enclosure plate proposed in this utility model.

[0017] In the diagram: 1. Conveyor body; 2. Opening; 3. Contact plate; 4. Lifting lug; 5. Connecting rope; 6. Connecting plate; 7. Enclosing plate; 8. Limit switch; 9. Top rod; 10. Soft sealing cover; 11. Bolt; 12. Threaded hole; 13. Pull ring; 14. Control board; 15. Status light. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 utility model 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 utility model. Example 1

[0020] An anti-blocking switch, such as Figures 1 to 4 As shown, the device includes an opening 2 and a contact plate 3 on the side wall of the chute body 1. The opening 2 is a rectangle of 20cm*20cm. A connecting plate 6 is welded and fixed to the outer wall of the chute body 1. The connecting plate 6 is located outside the opening 2. A closing plate 7 is provided on one side of the connecting plate 6. Lifting lugs 4 are fixed at both ends of the top outer wall of the contact plate 3. The lifting lugs 4 are connected to the closing plate 7 by connecting ropes 5. A limit switch 8 is installed on the bottom outer wall of the closing plate 7. A soft sealing cover 10 is fixed to the outer wall of the closing plate 7. The limit switch 8 is located inside the space enclosed by the soft sealing cover 10. A top rod 9 is fixed to the top outer wall of the contact plate 3. The top rod 9 is located below the limit switch 8.

[0021] The connecting plate 6 has threaded holes 12 on its four outer corners, and the sealing plate 7 has bolts 11 on its four corners. One end of the bolts 11 is threaded into the threaded holes 12. The connecting plate 6 has a control plate 14 on its outer wall. The control plate 14 is a mature existing technology, and its basic structure and working principle are well known to those skilled in the art, so it will not be described in detail here. The control plate 14 has status lights 15 on its outer wall. The control plate 14 is electrically connected to the limit switch 8 and the power control unit of the external conveying mechanism.

[0022] During installation, an opening 2 is cut into the outer shell of the chute body 1. The cut-off iron block serves as the contact plate 3. Lifting lugs 4 and a top rod 9 are welded to the outer wall of the contact plate 3. The contact plate 3 is connected to the sealing plate 7 via connecting ropes 5 and lifting lugs 4. A connecting plate 6 is welded to the outer wall of the chute body 1. The contact plate 3 is placed inside the chute body 1. Then, the sealing plate 7 is connected to the connecting plate 6 via bolts 11. When the chute body 1 is normally conveying materials, the contact plate 3 is vertically downward under gravity, the top rod 9 is located below the limit switch 8, and the status light 1... When the chute body 1 is blocked, as the material accumulates in the chute body 1, the material will push the contact plate 3 to move. The push rod 9 will squeeze the soft sealing cover 10 to trigger the limit switch 8. The electrical signal is transmitted to the control board 14. The control board 14 sends a signal of the chute body 1 to the power control unit of the external conveying mechanism to shut down the conveying mechanism. At the same time, the status light 15 turns red to make the status of the chute body 1 visible. The soft sealing cover 10 seals the limit switch 8 to prevent the material from contacting the limit switch 8.

[0023] By providing an opening 2, a contact plate 3, and a soft sealing cover 10, the soft sealing cover 10 encloses the outside of the limit switch 8, which can prevent materials from contacting the limit switch 8. It can also be modified based on the existing chute and effectively utilize the waste generated from the modification.

[0024] By setting status lights 15, different lights are used to reflect the status of the conveyor body 1. This makes the status of the conveyor body 1 visible, making it easier for staff to determine its status. Example 2

[0025] An anti-blocking switch, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 1 , Figure 4 As shown, the outer wall of the sealing plate 7 has two through holes, and one end of the connecting rope 5 passes through the through holes and is connected to a pull ring 13.

[0026] During maintenance, staff can simultaneously pull both pull rings 13 to move the contact plate 3 upward, triggering the limit switch 8 to test and verify whether the device is working properly. There is no need to manually simulate material blockage in the chute body 1 to test the limit switch 8.

[0027] With the pull ring 13 and through hole, the contact plate 3 can be pulled up during maintenance to test and verify the limit switch 8, eliminating the need to manually simulate material blockage in the chute body 1 to test the limit switch 8.

[0028] Working principle: During installation, an opening 2 is cut into the outer shell of the chute body 1. The cut-off iron block serves as the contact plate 3. Lifting lugs 4 and a top rod 9 are welded to the outer wall of the contact plate 3. The contact plate 3 is connected to the closing plate 7 via connecting ropes 5 and lifting lugs 4. A connecting plate 6 is welded to the outer wall of the chute body 1. The contact plate 3 is placed inside the chute body 1. Then, the closing plate 7 is connected to the connecting plate 6 via bolts 11. When the chute body 1 is normally conveying materials, the contact plate 3 is vertically downward under gravity, the top rod 9 is located below the limit switch 8, and the status light 15 emits a green light. When the chute body 1 becomes blocked, as the material accumulates in the chute body 1, the material will push the contact plate 3 to move. When the push rod 9 presses against the soft sealing cover 10, it triggers the limit switch 8. The electrical signal is transmitted to the control board 14, which sends a signal to the power control unit of the external conveying mechanism to shut down the conveying mechanism. At the same time, the status light 15 turns red, making the status of the chute body 1 visible. The soft sealing cover 10 seals the limit switch 8 to prevent material from contacting it. During maintenance, the operator can pull both pull rings 13 simultaneously to move the contact plate 3 upward, triggering the limit switch 8. This allows for testing and verification of the limit switch 8, confirming that the device is working properly. There is no need to manually simulate material blockage in the chute body 1 to test the limit switch 8.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-blocking switch, comprising an opening (2) formed in the side wall of a chute body (1) and a contact plate (3), characterized in that, A connecting plate (6) is welded and fixed to the outer wall of the chute body (1). The connecting plate (6) is located outside the opening (2). A closing plate (7) is provided on one side of the connecting plate (6). A limit switch (8) is installed on the bottom outer wall of the closing plate (7). A soft sealing cover (10) is fixed to the outer wall of the closing plate (7). The limit switch (8) is located inside the space enclosed by the soft sealing cover (10). A top rod (9) is fixed to the top outer wall of the contact plate (3). The top rod (9) is located below the limit switch (8).

2. The anti-blocking switch according to claim 1, characterized in that, The contact plate (3) has two lifting lugs (4) fixed at both ends of the top outer wall. The lifting lugs (4) are connected to the closing plate (7) by a connecting rope (5).

3. The anti-blocking switch according to claim 1, characterized in that, The opening (2) is a rectangle of 20cm*20cm.

4. The anti-blocking switch according to claim 1, characterized in that, The connecting plate (6) has threaded holes (12) on its four outer corners, and the sealing plate (7) has bolts (11) on its four corners. One end of the bolt (11) is threaded into the threaded hole (12).

5. The anti-blocking switch according to claim 1, characterized in that, A control plate (14) is provided on the outer wall of the connecting plate (6).

6. The anti-blocking switch according to claim 5, characterized in that, Status lights (15) are provided on the outer wall of the control panel (14).

7. The anti-blocking switch according to claim 1, characterized in that, The outer wall of the closed plate (7) has two through holes, and one end of the connecting rope (5) passes through the through holes and is connected to a pull ring (13).

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