Three-foot type high-sealing-performance pneumatic telescopic discharging valve

Abstract

The utility model provides a three-foot type pneumatic telescopic discharge valve with high sealing performance. A reinforcing rib is arranged on an upper valve body of the discharging valve, a right rotating shaft, a left rotating shaft, a right gate plate, a left gate plate and a bent sealing piece are installed in the upper valve body, the two sides, penetrating out of the upper valve body, of the rotating shafts are fixed through bearing assemblies, and a first switch air cylinder and a second switch air cylinder are installed on the two sides of the upper valve body and connected with the rotating shafts through a connecting mechanism. A first telescopic air cylinder, a second telescopic air cylinder and a third telescopic air cylinder are installed on the valve foot, a telescopic rod is connected with an adjusting connector, and a corrugated telescopic sealing sleeve is connected with the upper valve body and the lower valve body in a sealing mode through fastening bolts. According to the discharging valve, the three-foot type valve body is adopted to replace a four-foot type valve body, the discharging valve is simpler in structure, more flexible and easy to install, a guide mechanism is omitted, the telescopic air cylinder is combined with the adjusting connector to conduct vertical operation of the lower valve body, accurate control over material flowing is achieved, the discharging accuracy is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery and valves, in particular to a three-legged high-seal pneumatic telescopic discharge valve. Background Art

[0002] In industrial production, the transportation and processing of solid materials is an important link. In order to ensure that the materials can flow smoothly and be accurately discharged to the designated location, a reliable and efficient unloading equipment is needed. Pneumatic telescopic unloading valves came into being under such a background. Pneumatic telescopic unloading valves are widely used in solid material transportation and processing systems in chemical, building materials, metallurgy, electric power, light industry and other industries. They are usually installed at the bottom of silos, conveying pipelines or equipment to control the flow and unloading process of materials. Whether it is powdery, granular or small block materials, pneumatic telescopic unloading valves can provide reliable unloading control.

[0003] The discharge valve in the prior art combines the functions of the telescopic device and the discharge valve, and is driven by a pneumatic actuator to achieve fast and accurate switching actions to meet the discharge needs in different industrial scenarios. However, the lower valve body structure of the discharge valve is very complicated. During the discharge process, the lower valve body moves up and down through four guide mechanisms. The operation of the lower valve body is quite unstable and it is easy to get stuck. At the same time, the sealing performance of the discharge valve is not very good. With the continuous advancement of industrial technology and the improvement of automation level, the pneumatic telescopic discharge valve in the prior art is also constantly developing and improving to meet wider and more complex discharge needs. Summary of the invention

[0004] The purpose of the utility model is to provide a three-legged high-sealing pneumatic telescopic discharge valve. The technical problems to be solved by the utility model are: a three-legged valve body is used to replace a four-legged valve body, and the telescopic cylinder is installed evenly at three points; the guide mechanism in the existing telescopic discharge valve is cancelled, and a telescopic cylinder is used in combination with an adjusting connector to move the lower valve body up and down; a bent sealing plate is added at the gate closing position to reduce the risk of material leakage.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A three-legged high-sealing pneumatic telescopic unloading valve, comprising: an adjusting connector, a telescopic rod, a No. 1 telescopic cylinder, a right rotating shaft, a reinforcing rib, an upper valve body, a No. 1 switch cylinder, a bent seal, a left gate, a left rotating shaft, a corrugated telescopic sealing sleeve, a lower valve body, a valve foot, a bearing assembly, a No. 2 telescopic cylinder, a No. 3 telescopic cylinder, a No. 2 switch cylinder, a right gate, a control cabinet, and a connecting mechanism, wherein the connecting mechanism comprises: a shaft connecting member, a switch assembly, and a switch connecting rod. The unloading valve is provided with a reinforcing rib on the upper valve body, and a right rotating shaft and a left rotating shaft are symmetrically installed in the upper valve body, a right gate is welded on the right rotating shaft, and a left gate is welded on the left rotating shaft, a bent seal is installed on the upper part of the closed gap between the left gate and the right gate, and the right rotating shaft and the left rotating shaft pass through the reserved holes on both sides of the upper valve body respectively, pass through both sides of the upper valve body, and pass through the upper The right rotating shaft and the left rotating shaft on both sides of the valve body are fixed with bearing assemblies respectively, and the No. 1 switch cylinder and the No. 2 switch cylinder are respectively installed on both sides of the upper valve body, and the two sides of the No. 1 switch cylinder are respectively connected to one end of the right rotating shaft and the left rotating shaft by connecting mechanisms, and the two sides of the No. 2 switch cylinder are respectively connected to the other end of the right rotating shaft and the left rotating shaft by connecting mechanisms. Three valve feet are arranged on the upper valve body, and each valve foot is respectively installed with a No. 1 telescopic cylinder, a No. 2 telescopic cylinder and a No. 3 telescopic cylinder. Adjustment connectors are installed at positions of the lower valve body corresponding to the No. 1 telescopic cylinder, the No. 2 telescopic cylinder and the No. 3 telescopic cylinder, and the telescopic rods of each telescopic cylinder are respectively connected to the corresponding adjustment connectors. The upper end of the corrugated telescopic sealing sleeve is sealed and connected to the lower part of the upper valve body by fastening bolts, and the lower end of the corrugated telescopic sealing sleeve is sealed and connected to the lower valve body.

[0007] A switch assembly is installed at one end of the switch connecting rod of the connecting mechanism in the discharge valve, and the other end of the switch assembly is connected to the switch cylinder. A shaft connecting piece is installed at the other end of the switch connecting rod, and the shaft connecting piece is connected to the rotating shaft.

[0008] The three valve feet in the discharge valve equally divide the upper valve body, and the center lines of every two valve feet form an angle of 120°.

[0009] The No. 1 telescopic cylinder, the No. 1 switch cylinder, the No. 2 telescopic cylinder, the No. 3 telescopic cylinder and the No. 2 switch cylinder in the discharge valve are respectively connected to the pneumatic unit in the control cabinet through air pipes.

[0010] The bellows telescopic sealing sleeve in the discharge valve is made of high temperature resistant material.

[0011] The bearing components involved in the discharge valve include bearings, bearing seats, telescopic cylinders and switch cylinders, which are all mature equipment in the prior art.

[0012] Compared with the prior art, the positive effects of the utility model are:

[0013] 1. The discharge valve adopts a three-legged valve body instead of a four-legged valve body. Its structure is simpler. The three-legged valve body is more flexible and easier to install than the four-legged valve body, and has a larger lower space.

[0014] 2. The telescopic cylinder of the discharge valve adopts a three-point evenly distributed installation, which cancels the guide mechanism in the existing telescopic discharge valve, and uses a telescopic cylinder combined with an adjusting connector to move the lower valve body up and down;

[0015] 3. The discharge valve is driven by a pneumatic actuator. The valve can be raised, retracted and opened and closed by the air source. It has a fast response speed and can quickly switch and adjust the material flow, making the valve opening and closing action more precise, realizing precise control of material flow, improving the accuracy of discharge and improving production efficiency.

[0016] 4. The structure and material of the discharge valve are specially designed to withstand the wear of solid materials, have good wear resistance, extend the service life, and are suitable for the discharge operation of various non-sticky solid materials;

[0017] 5. The sealing parts of the discharge valve can be adjusted and replaced, with excellent sealing performance, which ensures the reliability of the sealing performance of the discharge valve and reduces the risk of material leakage;

[0018] 6. Compared with traditional mechanical unloading equipment, the unloading valve has lower energy consumption, reduces energy consumption and environmental pollution, and has wide applicability and stability;

[0019] 7. The discharge valve has a simple structural design and is easy to operate, making the repair and replacement of parts of the discharge valve more convenient and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technology of the utility model, the drawings required for use in the implementation are briefly introduced. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. of the drawings shown in this specification are only used to match the contents disclosed in the specification so as to facilitate the understanding and reading of those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the technology of the present invention.

[0022] Figure 1 , three The main structural diagram of the foot-type high-sealing pneumatic telescopic discharge valve;

[0023] Figure 2 , three A schematic diagram of the top view of the foot-type high-sealing pneumatic telescopic discharge valve;

[0024] Figure 3 , the connection diagram of each telescopic cylinder, switch cylinder and control cabinet.

[0025] In the figure: 1. adjusting connector, 2. telescopic rod, 3. No. 1 telescopic cylinder, 4. right rotating shaft, 5. shaft connecting part, 6. reinforcing rib, 7. upper valve body, 8. No. 1 switch cylinder, 9. bending seal, 10. left gate, 11. left rotating shaft, 12. corrugated telescopic sealing sleeve, 13. lower valve body, 14. switch assembly, 15. switch connecting rod, 16. valve foot, 17. bearing assembly, 18. No. 2 telescopic cylinder, 19. No. 3 telescopic cylinder, 20. No. 2 switch cylinder, 21. right gate, 22. control cabinet. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model is further described clearly and completely below in conjunction with the accompanying drawings.

[0027] See attached Figure 1-3 , installation and connection of the device, weld the reinforcing rib 6 to the upper valve body 7 and the three valve feet 16. The right gate plate 21 is welded on the right rotating shaft 4, and the left gate plate 10 is welded on the left rotating shaft 11. The right rotating shaft 4 and the left rotating shaft 11 are symmetrically installed in the upper valve body 7, and the bending seal 9 is installed on the upper part of the closed gap between the left gate plate 10 and the right gate plate 21. The two ends of the right rotating shaft 4 and the left rotating shaft 11 pass through the reserved holes on both sides of the upper valve body 7, respectively, and pass through the two sides of the upper valve body 7, and are fixed to the right rotating shaft 4 and the left rotating shaft 11 passing through the two sides of the upper valve body 7 by the bearing assembly 17. The No. 1 switch cylinder 8 and the No. 2 switch cylinder 20 are respectively installed on both sides of the upper valve body 7, and one end of the right rotating shaft 4 and the left rotating shaft 11 are respectively connected by the two-side connecting mechanism of the No. 1 switch cylinder 8, and the other end of the right rotating shaft 4 and the left rotating shaft 11 are respectively connected by the two-side connecting mechanism of the No. 2 switch cylinder 20. The upper valve body 7 is provided with three valve feet 16, and the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18 and the No. 3 telescopic cylinder 19 are respectively installed on each valve foot 16. The three adjustment connectors 1 are respectively installed at the positions corresponding to the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18 and the No. 3 telescopic cylinder 19 of the lower valve body 13, and the telescopic rod 2 of each telescopic cylinder is respectively connected to the corresponding adjustment connector 1. The upper end of the corrugated telescopic sealing sleeve 12 is sealed and connected to the lower part of the upper valve body 7 by fastening bolts, and the lower end of the corrugated telescopic sealing sleeve 12 is sealed and connected to the lower valve body 13.

[0028] The switch assembly 14 is installed at one end of the switch connecting rod 15, and the other end of the switch assembly 14 is connected to the switch cylinder. The shaft connecting member 5 is installed at the other end of the switch connecting rod 15, and the shaft connecting member 5 is connected to the rotating shaft.

[0029] The No. 1 telescopic cylinder 3, the No. 1 switch cylinder 8, the No. 2 telescopic cylinder 18, the No. 3 telescopic cylinder 19, and the No. 2 switch cylinder 20 are respectively connected to the pneumatic unit in the control cabinet 22 by air pipes.

[0030] Before use, the process parameters of the No. 1 telescopic cylinder 3, the No. 1 switch cylinder 8, the No. 2 telescopic cylinder 18, the No. 3 telescopic cylinder 19, and the No. 2 switch cylinder 20 are respectively input into the air control unit of the control cabinet 22. The material receiving port of the upper valve body 7 is reasonably docked and installed at the position of the material unloading on site, and the control cabinet 22 issues a command, and the pneumatic unit in the control cabinet 22 drives the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18, and the No. 3 telescopic cylinder 19 to work through the connecting air pipe, and the telescopic rods 2 of the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18, and the No. 3 telescopic cylinder 19 push the lower valve body 13 downward through the adjusting connector 1. When the lower valve body 13 reaches the reasonable unloading position, the control cabinet 22 issues a command, and the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18, and the No. 3 telescopic cylinder 19 stop working, and the unloading position of the lower valve body 13 is determined.

[0031] After the above work is completed, the control cabinet 22 issues a command, and the pneumatic unit in the control cabinet 22 drives the No. 1 switch cylinder 8 and the No. 2 switch cylinder 20 to work through the connecting air pipe. The No. 1 switch cylinder 8 and the No. 2 switch cylinder 20 respectively drive the switch components 14 on both sides. The switch components 14 respectively drive the right rotating shaft 4 and the left rotating shaft 11 to rotate through the switch connecting rod 15 and the shaft connecting member 5. The right rotating shaft 4 and the left rotating shaft 11 rotate to open the left valve plate 10 and the right valve plate 21. The existing unloaded materials pass through the discharge port of the upper valve body 7, along the corrugated telescopic sealing sleeve 12 to the discharge port of the lower valve body 13, and finally the materials enter the storage device prepared below.

[0032] After the unloading process is completed, the control cabinet 22 issues a command, and the pneumatic unit in the control cabinet 22 drives the No. 1 switch cylinder 8 and the No. 2 switch cylinder 20 through the connecting air pipe to drive the switch components 14 on both sides respectively. The switch components 14 drive the right rotating shaft 4 and the left rotating shaft 11 to rotate in the opposite direction through the switch connecting rod 15 and the shaft connecting member 5, and the left valve plate 10 and the right valve plate 21 move upward. When the left valve plate 10 and the right valve plate 21 reach the position of the bending seal 9, the left gate plate 10 and the right valve plate 21 are completely closed. The control cabinet 22 issues a command, and the telescopic rods 2 of the No. 1 telescopic cylinder 3, the No. 2 telescopic cylinder 18, and the No. 3 telescopic cylinder 19 respectively drive the lower valve body 13 to move upward through the adjusting connector 1, and the lower valve body 13 returns to the initial position, and the entire unloading process is completed. The entire unloading process is carried out under closed conditions.

[0033] The above is only a non-limiting implementation method of the utility model, and a large number of embodiments can be derived. For ordinary technicians in this field, without departing from the creative concept of the present invention and without making creative work, several modified and improved embodiments can be made, which all fall within the scope of protection of the present invention.

Claims

1. A three-legged high-sealing pneumatic telescopic discharge valve, comprising: Adjusting connector (1), telescopic rod (2), No. 1 telescopic cylinder (3), right rotating shaft (4), reinforcing rib (6), upper valve body (7), No. 1 switch cylinder (8), bending seal (9), left gate plate (10), left rotating shaft (11), corrugated telescopic sealing sleeve (12), lower valve body (13), valve foot (16), bearing assembly (17), No. 2 telescopic cylinder (18), No. 3 telescopic cylinder (19), No. 2 switch cylinder (20), right gate plate (21), control cabinet (22), connecting mechanism, wherein the connecting mechanism includes: shaft connecting member (5), The switch assembly (14) and the switch connecting rod (15) are characterized in that: the unloading valve is provided with a reinforcing rib (6) on the upper valve body (7), a right rotating shaft (4) and a left rotating shaft (11) are symmetrically installed in the upper valve body (7), a right gate plate (21) is welded on the right rotating shaft (4), and a left gate plate (10) is welded on the left rotating shaft (11), a bent seal (9) is installed on the upper part of the closed gap between the left gate plate (10) and the right gate plate (21), and the right rotating shaft (4) and the left rotating shaft (11) respectively pass through the reserved holes on both sides of the upper valve body (7) and pass out of the upper valve body (7). On both sides of the upper valve body (7), the right rotating shaft (4) and the left rotating shaft (11) passing through the upper valve body (7) are fixed by bearing assemblies (17), and the upper valve body (7) is respectively provided with a No. 1 switch cylinder (8) and a No. 2 switch cylinder (20). The two sides of the No. 1 switch cylinder (8) are respectively connected to one end of the right rotating shaft (4) and the left rotating shaft (11) by a connecting mechanism, and the two sides of the No. 2 switch cylinder (20) are respectively connected to the other end of the right rotating shaft (4) and the left rotating shaft (11) by a connecting mechanism. The upper valve body (7) is provided with three valve feet (16), each valve foot (1 A first telescopic cylinder (3), a second telescopic cylinder (18) and a third telescopic cylinder (19) are respectively installed on the upper valve body (6), and an adjusting connector (1) is installed at a position of the lower valve body (13) corresponding to the first telescopic cylinder (3), the second telescopic cylinder (18) and the third telescopic cylinder (19). The telescopic rod (2) of each telescopic cylinder is respectively connected to the corresponding adjusting connector (1), and the upper end of the corrugated telescopic sealing sleeve (12) is sealed and connected to the lower part of the upper valve body (7) by a fastening bolt, and the lower end of the corrugated telescopic sealing sleeve (12) is sealed and connected to the lower valve body (13).

2. The three-legged high-sealability pneumatic telescopic discharge valve according to claim 1 is characterized in that: A switch assembly (14) is mounted on one end of a switch connecting rod (15) of a connecting mechanism in the discharge valve, the other end of the switch assembly (14) is connected to a switch cylinder, and a shaft connecting member (5) is mounted on the other end of the switch connecting rod (15), the shaft connecting member (5) being connected to a rotating shaft.

3. The three-legged high-sealability pneumatic telescopic discharge valve according to claim 1 is characterized in that: The three valve feet (16) of the discharge valve equally divide the upper valve body (7), and the center lines of every two valve feet (16) form an angle of 120°.

4. The three-legged high-sealability pneumatic telescopic discharge valve according to claim 1 is characterized in that: The No. 1 telescopic cylinder (3), the No. 1 switch cylinder (8), the No. 2 telescopic cylinder (18), the No. 3 telescopic cylinder (19), and the No. 2 switch cylinder (20) in the discharge valve are respectively connected to the pneumatic unit in the control cabinet (22) via air pipes.

5. The three-legged high-sealability pneumatic telescopic discharge valve according to claim 1 is characterized in that: The corrugated telescopic sealing sleeve (12) in the discharge valve is made of high temperature resistant material.

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