Pneumatic double-opening bar valve

Abstract

The utility model provides a pneumatic double-opening bar valve, and belongs to the technical field of bar valves. Comprising a rectangular frame and a detection mechanism, an air cylinder is installed outside the rectangular frame, the detection mechanism comprises a positioning plate, the positioning plate is fixedly installed at the position of the inner side of the rectangular frame, a cylinder is arranged on one side face of the positioning plate, an inner cylinder is arranged at the position of the inner side of the cylinder, and a through hole is formed in the inner wall of the inner cylinder. The extrusion rod is slidably mounted in the through hole, and a pressure sensor is mounted on the inner wall of the cylinder. The inner cylinder is mounted in the cylinder, the movable extrusion rod is mounted in the inner cylinder, and the pressure sensor is mounted on the inner wall of the cylinder, so that when the diameter of a bar is reduced, the pressure sensor cannot be extruded or the extrusion force on the pressure sensor is reduced, and at the moment, the display lamp cannot be turned on; therefore, a worker is reminded to repair or replace the bar, and the quantity control effect of the materials is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rod valves, in particular to a pneumatic double-opening rod valve. Background Art

[0002] Pneumatic double-opening rod valve is a device for screening materials of different specifications, similar to a filter plate. The difference from the filter plate is that the pneumatic double-opening rod valve can control materials ≤50mm. Materials of this size will pass through the rod valve, while materials larger than this size will be blocked outside the rod valve.

[0003] When the rod valve is in use, the pneumatic equipment will push the rods to move. The two rows of rods move together and form a baffle to achieve material screening. Since the rod valve screens the materials, the rod valve will be worn by the materials after long-term use. The rods will gradually wear thinner during the material transportation process, which will cause the gap between the rods to increase. The rods are installed inside the equipment, and the staff cannot discover them in time. Larger materials will pass through the position of the rods and enter the next position, resulting in a worse control effect on the material quantity and affecting use. Therefore, a pneumatic double-opening rod valve is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a pneumatic double-opening rod valve that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a pneumatic double-opening rod valve, which comprises a rectangular frame, and a cylinder is installed outside the rectangular frame;

[0007] A testing mechanism, comprising:

[0008] A positioning plate, the positioning plate is fixedly mounted at a position inside the rectangular frame, and a cylinder is provided on one side of the positioning plate;

[0009] An inner cylinder, the inner cylinder is arranged at the inner side of the cylinder, and a through hole is opened on the inner wall of the inner cylinder;

[0010] An extrusion rod is slidably installed inside the through hole, a pressure sensor is installed on the inner wall of the cylinder, and the position of one end of the extrusion rod corresponds to the position of the pressure sensor.

[0011] In a preferred embodiment, a strip groove is provided on the outer surface of the extrusion rod, a moving block is fixedly installed on the inner wall of the through hole, the moving block is arranged in a sliding arrangement in the strip groove, a spring is fixedly installed on one side of the moving block, and one end of the spring is fixedly connected to the inner wall of the strip groove.

[0012] In a preferred embodiment, the telescopic end of the cylinder is fixedly mounted with a connecting plate, and a rod is fixedly mounted on one side of the connecting plate. The rods are provided in a plurality and are evenly arranged on one side of the connecting plate, and the rods are inserted into the interior of the inner cylinder.

[0013] In a preferred solution, the number of the cylinders is two, and they are respectively arranged at the left and right ends of the rectangular frame. A rod is installed at the telescopic end of each cylinder, and the rods on the left and right sides are positioned correspondingly.

[0014] In a preferred solution, the pressure sensor is electrically connected to a PLC controller, and the PLC controller is electrically connected to a display light.

[0015] A correction mechanism is also installed at the inner side of the rectangular frame, and the correction mechanism includes a metal tube and a conical plate.

[0016] A connecting rod is fixedly installed at the position inside the rectangular frame, and a metal pipe is fixedly installed at one end of the connecting rod. The metal pipes are provided in a plurality, and the positions of the metal pipes correspond to the positions of the cylinders.

[0017] A conical plate is fixedly installed at one end of the metal tube, the rod passes through the interior of the metal tube, and a rotatable roller is installed inside the metal tube.

[0018] The utility model provides a pneumatic double-opening rod valve, the beneficial effects of which include:

[0019] 1. A positioning plate is installed on the inner side of the rectangular frame, a cylinder is fixed inside the positioning plate, an inner cylinder is installed inside the cylinder, and a movable extrusion rod is installed inside the inner cylinder. A pressure sensor is installed on the inner wall of the cylinder. When the diameter of the rod becomes smaller, the pressure sensor cannot be squeezed or the extrusion force on the pressure sensor becomes smaller. At this time, the display light will not light up, thereby reminding the staff to repair or replace the rod to ensure the control effect of the material quantity.

[0020] 2. A metal tube is installed on the inner side of the rectangular frame, and a conical plate is installed on the end of the metal tube. Since the conical plate has a certain slope, the bent rod will move into the interior of the metal tube and straighten the bent part of the rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort.

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the metal tube of the utility model;

[0024] Figure 3 This is a schematic diagram of the roller structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the cylinder of the utility model;

[0026] In the figure: 1. Rectangular frame; 2. Cylinder; 3. Detection mechanism; 31. Positioning plate; 311. Cylinder; 32. Inner cylinder; 321. Through hole; 33. Extrusion rod; 331. Pressure sensor; 4. Strip groove; 5. Moving block; 6. Spring; 7. Connecting plate; 8. Rod; 9. PLC controller; 10. Display light; 11. Correction mechanism; 111. Metal tube; 112. Conical plate; 113. Roller; 12. Connecting rod. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0028] Reference Figure 1-Figure 4 The utility model provides a technical solution: a pneumatic double-opening rod valve, including a rectangular frame 1 and a detection mechanism 3, and a cylinder 2 is installed on the outside of the rectangular frame 1, the detection mechanism 3 includes a positioning plate 31, the positioning plate 31 is fixedly installed at a position inside the rectangular frame 1, a cylinder 311 is opened on one side of the positioning plate 31, an inner cylinder 32 is arranged at a position inside the cylinder 311, a through hole 321 is opened on the inner wall of the inner cylinder 32, an extrusion rod 33 is slidably installed inside the through hole 321, a pressure sensor 331 is installed on the inner wall of the cylinder 311, and one end position of the extrusion rod 33 corresponds to the position of the pressure sensor 331.

[0029] In a preferred embodiment, a strip groove 4 is provided on the outer surface of the extrusion rod 33, and a moving block 5 is fixedly installed on the inner wall of the through hole 321. The moving block 5 is set in a sliding setting in the strip groove 4. A spring 6 is fixedly installed on one side of the moving block 5, and one end of the spring 6 is fixedly connected to the inner wall of the strip groove 4. In order to facilitate the detection of the size change of the rod 8, a pressure sensor 331 is installed on the inner wall of the cylinder 311, and an extrusion rod 33 is slidably installed inside the inner cylinder 32. When the size of the rod 8 is normal, it enters the inner cylinder 32 and squeezes the extrusion rod 33, and the pressure sensor 331 is squeezed by the extrusion rod 33. When the pressure sensor 331 detects the presence of pressure, the display light 10 will light up, thereby indicating that the specifications of the rod 8 are normal, otherwise it is abnormal.

[0030] In a preferred embodiment, the telescopic end of the cylinder 2 is fixedly installed with a connecting plate 7, and a rod 8 is fixedly installed on one side of the connecting plate 7. The rods 8 are set to be several and evenly arranged on one side of the connecting plate 7. The rods 8 are inserted into the interior of the inner tube 32. There are two cylinders 2 and they are respectively arranged at the left and right ends of the rectangular frame 1. The telescopic end of each cylinder 2 is installed with a rod 8, and the positions of the rods 8 on the left and right sides correspond. In order to facilitate the control of the material conveying amount, this device uses rods 8 for shielding. By bringing two rows of rods 8 close together, they will be combined into a baffle to control the amount of material to meet the needs of use.

[0031] In order to facilitate the detection of changes in the specifications of the rod 8, the device electrically connects the pressure sensor 331 to the PLC controller 9, and the PLC controller 9 is electrically connected to the display light 10. In actual use, when the rod 8 cannot squeeze the pressure sensor 331, or the pressure value detected by the pressure sensor 331 becomes smaller, the display light 10 will be controlled by the PLC controller 9 to light up, so that the change in the size of the rod 8 can be detected in time for timely maintenance.

[0032] This device controls the amount of material shielding by the rod 8. A large amount of material will impact the rod 8 for a long time during transportation, causing the rod 8 to bend. Minor bends can be repaired by themselves, so a correction mechanism 11 is also installed on the inner side of the rectangular frame 1. The correction mechanism 11 includes a metal tube 111 and a conical plate 112. The inner side of the rectangular frame 1 is fixedly installed with a connecting rod 12, and one end of the connecting rod 12 is fixedly installed with a metal tube 111. There are several metal tubes 111, and the position of the metal tube 111 corresponds to the position of the cylinder 311. The conical plate 112 is fixedly installed on one end of the metal tube 111. The rod 8 passes through the interior of the metal tube 111, and a rotatable roller 113 is installed inside the metal tube 111.

[0033] In actual use, when the rod 8 that is bent by the impact of the material enters the interior of the metal tube 111, due to the bending of the rod 8, when the bent position enters the interior of the metal tube 111, the bent rod 8 will be moved into the interior of the metal tube 111 under the strong drive of the cylinder 2, and the position of the inner end of the metal tube 111 will squeeze the bent position of the rod 8, squeezing the rod 8 into an approximately straight line. At the same time, the bent rod 8 will also be restored to a straight state under the squeezing of the roller 113, so as to improve the repair effect of the rod 8.

[0034] Specifically, the working process or working principle of a pneumatic double-opening rod valve is as follows: when the rod valve is in use, the pneumatic equipment will push the rod 8 to move, and the two rows of rods 8 move together and form a baffle to realize material screening. Since the rod valve screens the material, the rod valve will be worn by the material under long-term use, and the rod 8 will be gradually worn thinner during the material transportation process, which causes the gap between the rods to increase. The rod 8 is installed inside the equipment, and the staff cannot discover it in time. The larger material will pass through the position of the rod 8 and enter the next position, resulting in a worse control effect on the material quantity, affecting use. Therefore, this device is designed to solve this problem.

[0035] This device can detect the wear of the rod 8, discover the problem of the rod 8 in time, and replace it in time to ensure the screening effect of the material. The specific operation is to connect the external power supply, install the device at the position of the screening material, and start working. The oil and gas cylinder 2 pushes the connecting plate 7 to move, and the rods 8 on the left and right sides are moved relative to each other. The rods 8 on the left and right sides are close to each other, and the rods 8 will pass through the inside of the inner tube 32. At the same time, they will squeeze the extrusion rod 33 and then squeeze the pressure sensor 331. When the pressure sensor 331 detects the presence of pressure, the display light 10 will be controlled by the PLC controller 9 to light up. Each pressure sensor 331 corresponds to a display light 10. When the display light 10 is on, it indicates that the rod 8 can be used normally. The rods 8 on the left and right sides form a baffle, which can block materials with a specification greater than 50mm outside the rod 8 regardless of the screening material, thereby realizing material screening.

[0036] With the long-term use of the rods 8, the rods 8 will be worn. When the rods 8 are worn and become thinner, the gaps between the rods 8 will increase, causing larger materials to pass through the position of the rods 8, reducing the control effect on the material quantity. At the same time, when the rods 8 become thinner and enter the inner cylinder 32, they will not be able to squeeze the extrusion rod 33, and thus will not be able to generate pressure on the pressure sensor 331, causing the display light 10 to fail to light up. The staff can judge that the rod 8 cannot be used normally based on the fact that the display light 10 does not light up, so that they can deal with it in time to ensure the control effect on the material quantity.

[0037] In actual use, a large amount of material will pass through the position of the rod 8, and the rod 8 is easily squeezed and bent under the pressure of the material, which increases the gap between the bent rod 8 and the adjacent rod 8, making it easy for large-sized materials to pass through the gap. Therefore, the device installs a metal tube 111 at the inner side of the rectangular frame 1, and the bent rod 8 will enter the interior of the metal tube 111. Since the rod 8 is bent, when the bent position enters the interior of the metal tube 111, the bent rod 8 will be moved into the interior of the metal tube 111 under the strong drive of the cylinder 2. The position of the inner end of the metal tube 111 will squeeze the bent position of the rod 8, squeezing the rod into an approximately straight line. At the same time, the bent rod 8 will also be restored to a straight state under the pressure of the roller 113, so as to improve the repair effect of the rod 8, thereby restoring the use function of the rod 8 and meeting the use requirements.

[0038] It should be noted that the cylinder 2 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art. Its power supply, specific composition and principles are clear to those skilled in the art, so they are not described in detail.

Claims

1. A pneumatic double-opening rod valve, characterized in that: It includes a rectangular frame (1), and a cylinder (2) is installed outside the rectangular frame (1); A detection mechanism (3), wherein the detection mechanism (3) comprises: A positioning plate (31), the positioning plate (31) is fixedly mounted on a position inside the rectangular frame (1), and a cylinder (311) is provided on one side of the positioning plate (31); An inner cylinder (32), the inner cylinder (32) being arranged at a position inside the cylinder (311), and a through hole (321) being formed on the inner wall of the inner cylinder (32); An extrusion rod (33) is slidably mounted inside the through hole (321), a pressure sensor (331) is mounted on the inner wall of the cylinder (311), and the position of one end of the extrusion rod (33) corresponds to the position of the pressure sensor (331).

2. The pneumatic double-opening rod valve according to claim 1, characterized in that: A strip groove (4) is provided on the outer surface of the extrusion rod (33); a moving block (5) is fixedly mounted on the inner wall of the through hole (321); the moving block (5) is arranged in a sliding manner in the strip groove (4); a spring (6) is fixedly mounted on one side of the moving block (5); and one end of the spring (6) is fixedly connected to the inner wall of the strip groove (4).

3. The pneumatic double-opening rod valve according to claim 2, characterized in that: The telescopic end of the cylinder (2) is fixedly mounted with a connecting plate (7), and a rod (8) is fixedly mounted on one side of the connecting plate (7). The rods (8) are provided in a plurality and are evenly arranged on one side of the connecting plate (7). The rods (8) are inserted into the interior of the inner cylinder (32).

4. The pneumatic double-opening rod valve according to claim 3, characterized in that: The cylinders (2) are provided in two numbers and are respectively provided at the left and right ends of the rectangular frame (1). A rod (8) is installed at the telescopic end of each cylinder (2), and the rods (8) on the left and right sides are positioned correspondingly.

5. The pneumatic double-opening rod valve according to claim 4, characterized in that: The pressure sensor (331) is electrically connected to a PLC controller (9), and the PLC controller (9) is electrically connected to a display light (10).

6. The pneumatic double-opening rod valve according to claim 5, characterized in that: A correction mechanism (11) is also installed inside the rectangular frame (1), and the correction mechanism (11) comprises a metal tube (111), a roller (113) and a conical plate (112).

7. The pneumatic double-opening rod valve according to claim 6, characterized in that: A connecting rod (12) is fixedly mounted on the inner side of the rectangular frame (1), and a metal tube (111) is fixedly mounted on one end of the connecting rod (12). The metal tubes (111) are provided in a plurality, and the positions of the metal tubes (111) correspond to the positions of the cylinders (311).

8. The pneumatic double-opening rod valve according to claim 7, characterized in that: A conical plate (112) is fixedly mounted on one end of the metal tube (111), the rod (8) passes through the interior of the metal tube (111), and a rotatable roller (113) is mounted inside the metal tube (111).

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