Gate closing device

Abstract

The utility model discloses a gate closing device, which relates to the technical field of gates, and comprises a funnel body and a fan-shaped gate hinged on the funnel body, and further comprises a cylinder body, the cylinder body is arranged on the outer side of the funnel body, a piston rod is slidably connected in the cylinder body, and the end part of the piston rod on the outer side of the cylinder body is rotatably connected with the fan-shaped gate; and the driving piece is connected with the cylinder body, so that the piston rod reciprocates in the cylinder body. According to the gate closing device, the technical problems that the gate closing speed is low and the structure is complex are solved, and the technical effects that the gate is effectively closed, complex mechanical parts are reduced, and the manufacturing and maintenance cost is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gates, and particularly relates to a gate closing device. Background Art

[0002] During the process of mine exploitation, the underground funnel gate, as a key equipment component, is designed to flexibly adjust the opening and closing speed of the gate according to the physical properties of different materials, so as to precisely control the material flow rate, ensure that the discharge amount of the funnel matches the capacity of the subsequent processing equipment, and thus maintain the stability and efficiency of the entire production process.

[0003] Traditionally, the speed of the underground funnel gate during the closing process is often difficult to reach the ideal state and is too slow, resulting in a large amount of wet coal gushing out before the gate is completely closed, causing the so-called "bin overflow" phenomenon, endangering the safety of equipment and personnel, and the existing gate opening and closing structure is complex.

[0004] Therefore, how to provide a gate closing device to effectively close the gate, simplify the structure and improve the operation convenience is a technical problem that those skilled in the art need to solve currently. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a gate closing device, which solves the technical problems of slow gate closing speed and complex structure.

[0006] To achieve the above purpose, the utility model provides a gate closing device, which includes a funnel body and a sector gate hinged on the funnel body, and further includes:

[0007] A cylinder body, which is arranged outside the funnel body, a piston rod is slidably connected in the cylinder body, and the end of the piston rod located outside the cylinder body is rotatably connected to the sector gate;

[0008] A driving member, which is connected to the cylinder body to make the piston rod reciprocate in the cylinder body.

[0009] Preferably, the driving member includes:

[0010] A reversing valve, which includes a first air outlet and a second air outlet, and the reversing valve is connected to an air pipe;

[0011] A first three-way joint, the first end of the first three-way joint is communicated with the first opening of the cylinder body, the second end of the first three-way joint is communicated with the first air outlet of the reversing valve, and the third end of the first three-way joint is communicated with a first air pipe;

[0012] A second three-way joint, the first end of the second three-way joint is communicated with the second opening of the cylinder block, the second end of the second three-way joint is communicated with the second air outlet of the reversing valve, the third end of the second three-way joint is communicated with a second air outlet pipe, and control valves are arranged on both the first air outlet pipe and the second air outlet pipe;

[0013] A controller, the reversing valve and the control valve are both in signal connection with the controller.

[0014] Preferably, both the first three-way joint and the second three-way joint are reducing three-way joints, the aperture of the first end is equal to the aperture of the second end, and the aperture of the third end is larger than the aperture of the second end.

[0015] Preferably, the control valve is a solenoid valve.

[0016] Preferably, the controller is a programmable logic controller.

[0017] Preferably, a connecting plate is arranged at the bottom of the sector gate, and the end of the piston rod is connected with the connecting plate through a pin shaft.

[0018] Preferably, the hopper body is connected with the sector gate through a pin shaft.

[0019] Preferably, a sealing strip is arranged at the edge of the sector gate.

[0020] Compared with the above background art, in the piston rod reciprocating motion provided by the present invention within the cylinder body will be converted into the rotation of the sector gate, so as to realize the opening and closing of the gate. The driving member is connected with the cylinder block and is used to provide power for the piston rod to reciprocate within the cylinder body. To sum up, the gate closing device provided by this application can effectively close the gate, reduce complex mechanical components, and lower the manufacturing and maintenance costs. The working state of the driving member can be adjusted through remote control or an automatic control system, making the operation more convenient. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0022] Figure 1 It is a schematic structural diagram of the gate closing device provided by the embodiment of the present invention.

[0023] Wherein: 1 - hopper body, 2 - sector gate, 3 - cylinder block, 4 - piston rod, 5 - reversing valve, 51 - air pipe, 52 - air vent, 6 - first three-way joint, 7 - first air outlet pipe, 8 - second three-way joint, 9 - second air outlet pipe, 91 - control valve. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figure 1 , a gate closing device provided by the present application includes a hopper body 1 and a sector gate 2 hinged to the hopper body 1, and further includes a cylinder block 3 disposed outside the hopper body 1. A piston rod 4 is slidably connected inside the cylinder block 3, and the end of the piston rod 4 located outside the cylinder block 3 is rotatably connected to the sector gate 2; a driving member is connected to the cylinder block 3 to enable the piston rod 4 to reciprocate inside the cylinder block 3.

[0027] That is to say, the sector gate 2 of the present application is hinged to the bottom of the hopper body 1 for controlling the discharge of materials. By opening and closing the sector gate 2, the flow rate of the materials can be adjusted. The cylinder block 3 is located outside the hopper body 1, and a piston rod 4 is slidably connected inside the cylinder block 3 for driving the rotation of the sector gate 2. One end of the piston rod 4 is located inside the cylinder block 3, and the other end extends out of the cylinder block 3 and is rotatably connected to the sector gate 2. The reciprocating movement of the piston rod 4 inside the cylinder block 3 will be converted into the rotation of the sector gate 2, thereby realizing the opening and closing of the gate. The driving member is connected to the cylinder block 3 for providing power to enable the piston rod 4 to reciprocate inside the cylinder block 3; in summary, the gate closing device provided by the present application can effectively close the gate, reduce complex mechanical components, and reduce manufacturing and maintenance costs. The working state of the driving member can be adjusted through remote control or an automated control system, making the operation more convenient.

[0028] On the basis of the above embodiment, the driving member includes a reversing valve 5. The reversing valve 5 includes a first air outlet and a second air outlet, and the reversing valve 5 is connected to the air pipe 51;

[0029] The first three-way joint 6, the first end of the first three-way joint 6 is communicated with the first opening of the cylinder block 3, the second end of the first three-way joint 6 is communicated with the first air outlet of the reversing valve 5, and the third end of the first three-way joint 6 is communicated with the first air outlet pipe 7;

[0030] The second three-way joint 8, the first end of the second three-way joint 8 is communicated with the second opening of the cylinder block 3, the second end of the second three-way joint 8 is communicated with the second air outlet of the reversing valve 5, and the third end of the second three-way joint 8 is communicated with the second air outlet pipe 9. Control valves 91 are provided on both the first air outlet pipe 7 and the second air outlet pipe 9;

[0031] The controller, both the reversing valve 5 and the control valve 91 are signal-connected to the controller.

[0032] Specifically, the reversing valve 5 has a first air outlet and a second air outlet, and is used to control different movement directions of the piston rod 4 in the cylinder block 3. The reversing valve 5 is connected to an external air source or hydraulic source through an air pipe 51 to obtain necessary power. The reversing valve 5 is also provided with an air release hole 52, which is used to quickly release the pressure in the valve body through the air release hole in case of an emergency.

[0033] The first end of the first three-way joint 6 is closely connected to the first opening of the cylinder block 3, the second end of the first three-way joint 6 is connected to the first air outlet of the reversing valve 5, and then the reversing valve 5 can control the air intake of the cylinder block 3 through the first air outlet. The third end of the first three-way joint 6 is connected to the first air outlet pipe 7 for further air path connection and control.

[0034] The first end of the second three-way joint 8 is closely connected to the second opening of the cylinder block 3, the second end of the second three-way joint 8 is connected to the second air outlet of the reversing valve 5, and then the reversing valve 5 can control the air intake of the cylinder block 3 through the second air outlet. The third end of the second three-way joint 8 is connected to the second air outlet pipe 9.

[0035] Control valves 91 are provided on both the first air outlet pipe 7 and the second air outlet pipe 9 to control the working states of the reversing valve 5 and the control valve 91.

[0036] Open the sector gate 2

[0037] When the controller receives a signal to open the sector gate 2, it immediately sends an instruction to the reversing valve 5 to make the first air outlet of the reversing valve 5 start to work. At the same time, the controller closes the control valve 91 on the first air outlet pipe 7 and opens the control valve 91 on the second air outlet pipe 9. Through the first three-way joint 6, power is transmitted to the cylinder block 3 to push the piston rod 4 to slide outwards in the cylinder block 3; the movement of the piston rod 4 drives the sector gate 2 to rotate and gradually open it.

[0038] Close the sector gate 2:

[0039] When it is necessary to close the sector gate 2, the controller will send another instruction to the reversing valve 5 to make the second air outlet of the reversing valve 5 start to work. At the same time, the controller opens the control valve 91 on the first air outlet pipe 7 and closes the control valve 91 on the second air outlet pipe 9. The gas in the cylinder block 3 is discharged through the second three-way joint 8. At the same time, relying on the self-weight of the sector gate 2, the piston rod 4 slides inward in the cylinder block 3, so that the sector gate 2 is quickly closed, achieving the purpose of effectively closing the gate.

[0040] Based on the above embodiment, both the first three-way joint 6 and the second three-way joint 8 are stepped three-way joints. The aperture of its first end is equal to that of the second end, and the aperture of the third end is larger than that of the second end. The aperture of the third end is 25mm, which is used for further air circuit connection and control, providing a larger air flow channel.

[0041] Based on the above embodiment, the control valve 91 is a solenoid valve; the controller is a programmable logic controller. Specifically, the solenoid valve has the characteristics of fast response and precise control, which helps to achieve fine regulation of the opening and closing speed and force of the sector gate 2. The programmable logic controller is the "brain" of the entire drive system, responsible for receiving external signals or instructions, and accurately controlling the working states of the reversing valve 5 and the control valve 91 according to these signals or instructions. The PLC has high flexibility and programmability, and can be customized for programming and control according to specific application scenarios to achieve complex logic control and automated operations.

[0042] Based on the above embodiment, a connecting plate is provided at the bottom of the sector gate 2, and the end of the piston rod 4 is connected to the connecting plate through a pin shaft; the hopper body 1 is connected to the sector gate 2 through a pin shaft.

[0043] That is to say, a connecting plate is provided at the bottom of the sector gate 2, and the connecting plate is designed with a pin hole matching the end of the piston rod 4. The end of the piston rod 4 is connected to the pin hole on the connecting plate through a pin shaft, realizing the rotational connection between the piston rod 4 and the sector gate 2.

[0044] When the piston rod 4 slides in the cylinder block 3, the sector gate 2 is driven to open and close through the pin shaft connection.

[0045] The hopper body 1 and the sector gate 2 are also connected through a pin shaft. The sector gate 2 is designed with a pin hole matching the hopper body 1, and the two are connected together through a pin shaft.

[0046] A sealing strip is provided at the edge of the sector gate 2. That is to say, the main function of the sealing strip is to ensure good sealing between the sector gate 2 and the sealing surface when it is closed. It can be made of materials with excellent elasticity and aging resistance, such as rubber, ethylene propylene diene monomer (EPDM), etc.

[0047] Based on the above embodiments, a limiting device is further included. The limiting device is arranged on the cylinder block and is used to limit the reciprocating movement stroke of the piston rod 4 in the cylinder block 3, so as to control the opening and closing angles of the sector gate 2. The limiting device includes travel switches arranged at both ends of the cylinder block 3. When the piston rod 4 moves to both ends of the cylinder block 3, the travel switches are triggered to stop the air supply. The limiting device not only improves the operation accuracy of the sector gate 2, but also greatly enhances the safety of the equipment. It can effectively prevent the piston rod 4 from damaging the cylinder block 3 due to excessive movement, and at the same time, it can also avoid accidents caused by the sector gate 2 having too large an opening or closing angle.

[0048] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0049] Specific examples are used in this article to elaborate on the principles and implementation manners of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A gate closing device, comprising a funnel body (1) and a sector gate (2) hinged to the funnel body (1), characterized in that, Further comprising: A cylinder block (3) is provided outside the funnel body (1). A piston rod (4) is slidably connected in the cylinder block (3). The end of the piston rod (4) outside the cylinder block (3) is rotatably connected to the sector gate (2). A driving member is connected to the cylinder block (3) to reciprocate the piston rod (4) in the cylinder block (3).

2. The gate closing device according to claim 1, characterized in that, The driving member includes: A reversing valve (5) includes a first air outlet and a second air outlet, and the reversing valve (5) is connected to an air pipe (51). A first three-way joint (6), the first end of the first three-way joint (6) is communicated with the first opening of the cylinder block (3), the second end of the first three-way joint (6) is communicated with the first air outlet of the reversing valve (5), and the third end of the first three-way joint (6) is communicated with a first air pipe (7). A second three-way joint (8), the first end of the second three-way joint (8) is communicated with the second opening of the cylinder block (3), the second end of the second three-way joint (8) is communicated with the second air outlet of the reversing valve (5), and the third end of the second three-way joint (8) is communicated with a second air pipe (9). Control valves (91) are provided on both the first air pipe (7) and the second air pipe (9). A controller, the reversing valve (5) and the control valves (91) are both in signal connection with the controller.

3. The gate closing device according to claim 2, characterized in that, Both the first three-way joint (6) and the second three-way joint (8) are reducing three-way joints, the aperture of the first end is equal to that of the second end, and the aperture of the third end is larger than that of the second end.

4. The gate closing device according to claim 2, wherein The control valve (91) is a solenoid valve.

5. The gate closing device according to claim 4, characterized in that, The controller is a programmable logic controller.

6. The gate closing device according to any one of claims 1-5, characterized in that, A connecting plate is provided at the bottom of the sector gate (2), and the end of the piston rod (4) is connected to the connecting plate by a pin shaft.

7. The gate closing device according to any one of claims 1-5, characterized in that, The funnel body (1) is connected to the sector gate (2) by a pin shaft.

8. The gate closing device according to claim 7, wherein, A sealing strip is provided at the edge of the sector gate (2).

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