CN211667167U

CN211667167U - Hinge type dustproof sealing gate valve

Info

Publication number: CN211667167U
Application number: CN201922132307.8U
Authority: CN
Inventors: 郭晓玲; 林煌; 黄玲敏; 凌志优; 林颍轩; 任金波; 赵芳伟
Original assignee: Fujian Agriculture and Forestry University
Current assignee: Fujian Agriculture and Forestry University
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-10-13
Anticipated expiration: 2029-12-03

Abstract

The utility model relates to a hinge formula dustproof sealing push-pull valve, which comprises a housin, be provided with the division board at the casing middle part, be provided with airflow channel on the division board right side, wear to be equipped with the picture peg that is used for controlling airflow channel switching on the division board, the picture peg can the relative division board carry out lateral shifting, the picture peg left end is provided with rotates the accommodate the lead screw who is connected with the picture peg, accommodate the lead screw passes the casing left side and passes through threaded connection with the casing, be provided with a plurality of hinge plates in the division board left side, be provided with the mounting panel that is used for fixed mounting hinge plate in hinge plate both sides, hinge plate rotates with the mounting panel to be connected, hinge plate one side is provided with and is used for driving hinge plate pivoted fork wheel, be provided with on. The utility model discloses novel structure, easy and simple to handle can carry out the multilayer and block the dust, avoids the dust to blow off outside the push-pull valve, and the leakproofness is strong.

Description

Hinge type dustproof sealing gate valve

Technical Field

The utility model relates to a hinge formula dustproof sealing push-pull valve.

Background

The principle of the knife gate valve is that a round opening with the size of a drift diameter is formed on the flashboard, and the round opening on the flashboard and the drift diameter are completely separated and matched through opening and closing the flashboard. The valve has the advantages that the drift diameter of the valve body is not provided with a groove, the medium cannot be blocked and blocked, the valve has the full-drift-diameter circulation characteristic, and the sealing structure can be divided into a soft sealing structure and a hard sealing structure. The penetrating knife gate valve has the characteristics of precise structure, good manufacturability, compact structure and the like, and the sealing valve seat is designed to be a movable structure and has the functions of abrasion resistance and automatic compensation, so the service life is longer. The valve seat and the gate plate always move in a clinging manner in the closing and opening processes, so that the opening and closing force of the valve is stable, and the valve has the characteristics of cutting off media and the like.

However, the existing gate valve is poor in sealing performance, dust is easily accumulated on the gate, and clamping stagnation is easily caused when the gate moves.

Disclosure of Invention

In view of this, the utility model aims at providing a hinge formula dustproof sealing push-pull valve, novel structure, easy and simple to handle can carry out the multilayer and block the dust, avoid the dust to blow off outside the push-pull valve, the leakproofness is strong.

The technical scheme of the utility model is that: the utility model provides a hinge formula dustproof sealing push-pull valve, which comprises a housin, be provided with the division board in the middle part of the casing, be provided with airflow channel on the division board right side, wear to be equipped with the picture peg that is used for controlling airflow channel switching on the division board, the picture peg can carry out lateral shifting relative to the division board, the picture peg left end is provided with the accommodate the lead screw who rotates the connection with the picture peg, accommodate the lead screw passes the casing left side and passes through threaded connection with the casing, be provided with a plurality of hinge plates on the division board left side, be provided with the mounting panel that is used for fixed mounting hinge plate in hinge plate both sides, hinge plate and mounting panel rotate to be connected, hinge plate one side is provided with and is used for driving hinge plate pivoted fork wheel.

Furthermore, two adjacent hinge plates are installed in opposite directions.

Furthermore, a sealing assembly is arranged on the left side of the partition plate.

Further, the sealing assembly comprises a labyrinth structure, an oil film structure, a V-shaped pressurizing structure and a spring bridge structure from right to left.

Furthermore, the labyrinth structure includes the first vertical baffle of a plurality of vertical installations, and vertical baffle distributes in the upper and lower both sides of picture peg, and one side that vertical baffle kept away from the picture peg is provided with the first horizontal mounting panel that is used for fixed mounting vertical baffle.

Furthermore, the oil film structure comprises oil storage felts distributed on the upper side and the lower side of the inserting plate, and fixing clamping plates are arranged on the left side and the right side of each oil storage felt.

Furthermore, V type pressurization structure is provided with V type elastic separation plate including the second vertical baffle that distributes in the upper and lower both sides of picture peg at vertical baffle towards the tip of picture peg, and V type elastic separation plate's opening is towards the left side.

Further, the spring bridge structure is including being located the rubber strip of picture peg upper end, set up a plurality of compression spring A above the rubber strip, be provided with the horizontal mounting panel of second above compression spring A, be provided with the first straining device that is used for controlling the horizontal mounting panel of second to rise or descend above the horizontal mounting panel of second, be provided with the abrasive material strip at the picture peg lower extreme, be provided with compression spring B below the abrasive material strip, be provided with the horizontal mounting panel of third below compression spring B, be provided with the second straining device that is used for controlling the horizontal mounting panel of third to rise or descend below the horizontal mounting panel of third.

Further, first straining device is including being located the articulated seat in second transverse installation board middle part, and articulated being provided with two connecting rods on articulated seat, two connecting rod symmetric distribution all are provided with the nut lasso in two connecting rod tip, and the connecting rod articulates with the nut lasso, wears to be equipped with the double threaded screw who passes two nut lassos simultaneously on the nut lasso, and the screw spin opposite direction of double threaded screw both sides is provided with rotatory hand wheel in double threaded screw's one end.

Further, the second tensioning mechanism comprises a wedge-shaped inclined plane A arranged below the third transverse mounting plate, a top plate is arranged on the left side of the third transverse mounting plate, a wedge-shaped inclined plane B is arranged on the top plate, a bolt is arranged on the left side of the top plate, the bolt and the top plate are rotatably connected, a first vertical mounting plate is arranged on the left side of the top plate, two sides of the first vertical mounting plate are fixed on the shell, and an adjusting nut sleeved on the bolt is arranged on the first vertical mounting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure, easy and simple to handle, through hinge plate, labyrinth structure, oil film structure, V type pressurization structure and spring bridge structure, carry out the multilayer and block the dust, avoid the dust to blow off outside the push-pull valve, the leakproofness is strong.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of the embodiment of the present invention;

fig. 5 is a partial schematic view a of the embodiment of the present invention shown in fig. 4;

fig. 6 is a partial schematic view B of the embodiment of the present invention shown in fig. 4;

fig. 7 is a schematic structural view of a plug board according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a hinge plate according to an embodiment of the present invention;

in the figure: 100-a housing; 110-a divider plate; 120-an airflow channel; 130-plug board; 131-a slot; 140-adjusting the screw rod; 200-hinge plates; 210-a mounting plate; 220-a fork wheel; 300-a seal assembly; 400-labyrinth structure; 410-a first vertical partition; 420-a first transverse mounting plate; 500-oil film structure; 510-oil storage felt; 520-a fixed splint; a 600-V type pressurization structure; 610-a second vertical partition; 620-V-shaped elastic partition plate; 700-spring bridge configuration; 710-rubber strips; 720-compression spring a; 730-a second transverse mounting plate; 740 — a first tensioning mechanism; 741-a hinged seat; 742-a connecting rod; 743-nut collar; 744-double-ended screw; 745-rotating the handwheel; 750-abrasive strips; 760-compression spring B; 770-a third transverse mounting plate; 780-a second tensioning mechanism; 781-wedge bevel a; 782-a top plate; 783-wedge bevel B; 784-bolt; 785-a first vertical mounting plate; 786-adjusting the nut.

Detailed Description

As shown in fig. 1 to 8, a hinge type dustproof sealing gate valve includes a housing 100, a partition plate 110 is disposed in the middle of the housing 100, an airflow channel 120 is disposed on the right side of the partition plate 110, an insertion plate 130 for controlling the opening and closing of the airflow channel 120 is disposed on the partition plate 110 in a penetrating manner, the insertion plate 130 can move transversely relative to the partition plate 110, an adjusting screw 140 rotatably connected to the insertion plate 130 is disposed at the left end of the insertion plate 130, the adjusting screw 140 penetrates the left side of the housing 100 and is in threaded connection with the housing 100, a plurality of hinge plates 200 are disposed on the left side of the partition plate 110, mounting plates 210 for fixedly mounting the hinge plates 200 are disposed on both sides of the hinge plates 200, the hinge plates 200 are rotatably connected to the mounting plates, a fork wheel 220 for driving the hinge plates 200 to rotate is disposed on one side of the hinge plates 200, and a slot 131 matched with the fork. The two sides of the partition plate 110 are fixed on the casing 100, dividing the casing 100 into the outside of the valve cavity at the left side and the inside of the valve cavity at the right side, and the airflow passage 120 is positioned at the inside of the valve cavity; the transverse movement of the inserting plate 130 can adjust the opening or closing of the airflow channel 120; the adjusting screw rod 140 is rotated to enable the adjusting screw rod 140 to move left and right relative to the shell 100, so that the inserting plate 130 is driven to move left and right, and the opening or closing of the air flow channel 120 is adjusted; the hinge plate 200 is fixed on the mounting plate 210 and is rotatably connected with the mounting plate 210, when the hinge plate 200 is horizontally oriented, the airflow channel 120 is closed, one end of the mounting plate is fixed on the shell 100, the other end of the mounting plate is fixed on the partition plate 110, the mounting plate is provided with a slot 131 matched with the fork wheel 220, when the inserting plate 130 moves left and right, the slot 131 is matched with the fork wheel 220, the fork wheel 220 is driven to rotate forward or backward, the hinge plate 200 is driven to rotate forward or backward, the inserting plate 130 is linked with the hinge plate 200, when the inserting plate 130 moves left, the airflow channel 120 is opened, and when the inserting plate 130 moves left, the fork wheel 220 is driven to rotate forward, so that the hinge is opened, airflow flows in the airflow channel 120, when the inserting plate 130 moves right, the airflow channel 120 is closed, and when the inserting plate 130 moves right, the fork wheel 220 is driven to rotate backward, so that the hinge is closed, the airflow is blocked by the inserting plate 130 and the hinge plate 200 at the same time, and the closing of the hinge plate 200 can avoid dust from accumulating on the inserting plate 130 when the inserting plate 130 is closed.

In this embodiment, two adjacent hinge plates 200 are installed in opposite directions. The hinge plate 200 is reversely installed to prevent the adjacent fork wheels 220 from interfering with each other

In this embodiment, a sealing assembly 300 is further provided on the left side of the partition plate 110. By sealing assembly 300, gas flow is prevented from exiting the valve insert 130, preventing the valve insert 130 from leaking.

In this embodiment, the seal assembly 300 includes a labyrinth structure 400, an oil film structure 500, a V-shaped pressurizing structure 600, and a spring bridge structure 700 from right to left.

In this embodiment, the labyrinth structure 400 includes a plurality of vertically installed first vertical partition plates 410, the vertical partition plates are distributed on the upper and lower sides of the inserting plate 130, and a first horizontal installation plate 420 for fixedly installing the vertical partition plates is disposed on one side of the vertical partition plates away from the inserting plate 130. The flow rate of the gas can be reduced by the labyrinth structure 400, and when the gas flows through the gap between the first vertical partition 410 and the insert plate 130, the gas flow is subjected to a throttling action, the pressure and temperature of the gas flow are reduced, and the flow rate is increased. After passing through the gap, the airflow enters a cavity formed by two adjacent first vertical partition plates 410, the volume of the gas in the cavity is suddenly increased to form a strong vortex, the airflow speed in the cavity with the volume much larger than that of the gap is rapidly reduced, the kinetic energy is completely changed into heat due to the vortex to heat the gas, and therefore the temperature of the gas in the cavity returns to the position before throttling, but the pressure is slightly increased, so that the energy and the momentum of the airflow are consumed, and the flow speed of the airflow is reduced.

In this embodiment, the oil film structure 500 includes oil storage felts 510 distributed on the upper and lower sides of the inserting plate 130, and fixing clamping plates 520 are disposed on the left and right sides of the oil storage felts 510. The oil stored in the oil storing felt 510 will infiltrate the upper and lower surfaces of the insert plate 130, so that the gaps between the insert plate 130 and the first horizontal mounting plate 420, the fixed clamping plate 520, and the V-shaped elastic partition 620 are filled with the oil, and the gaps are sealed by the oil.

In this embodiment, the V-shaped pressing structure 600 includes second vertical partition plates 610 distributed on the upper and lower sides of the insert plate 130, a V-shaped elastic partition plate 620 is disposed at the end of the vertical partition plate facing the insert plate 130, and the opening of the V-shaped elastic partition plate 620 faces the left side. The opening of the V-shaped elastic partition plate 620 faces the outer side of the valve cavity, when the valve insert 130 is in use, the pressure outside the pipeline is often larger than the pressure inside the pipeline, and at the moment, the V-shaped elastic partition plate 620 is pressed towards the direction of the insert plate 130 by the external high pressure to realize further sealing.

In this embodiment, the spring bridge structure 700 includes a rubber strip 710 located at the upper end of the insert plate 130, a plurality of compression springs a720 are disposed above the rubber strip 710, a second transverse mounting plate 730 is disposed above the compression springs a720, a first tensioning mechanism 740 is disposed above the second transverse mounting plate 730 for controlling the second transverse mounting plate 730 to ascend or descend, an abrasive strip 750 is disposed at the lower end of the insert plate 130, a compression spring B760 is disposed below the abrasive strip 750, a third transverse mounting plate 770 is disposed below the compression spring B760, and a second tensioning mechanism 780 is disposed below the third transverse mounting plate 770 for controlling the third transverse mounting plate 770 to ascend or descend. The up-and-down movement of the second transverse mounting plate 730 can be adjusted by adjusting the first tensioning mechanism 740, when the sealing performance of the valve needs to be improved, the second transverse mounting plate 730 can move downwards, the rubber strip 710 is enabled to press the inserting plate 130 to achieve the sealing effect, and when the inserting plate 130 needs to be adjusted to move, the second transverse mounting plate 730 moves upwards, and the rubber strip 710 is enabled to release the inserting plate 130; the up-and-down movement of the third transverse mounting plate 770 can be adjusted by adjusting the second tensioning mechanism 780, when the sealing performance of the valve needs to be increased, the third transverse mounting plate 770 can move upwards to enable the abrasive strips 750 to press the inserting plate 130 to achieve the sealing effect, and when the inserting plate 130 needs to be adjusted to move, the third transverse mounting plate 770 moves downwards to enable the abrasive strips 750 to loosen the inserting plate 130.

In this embodiment, the first tensioning mechanism 740 includes a hinge seat 741 located in the middle of the second transverse mounting plate 730, two connecting rods 742 are hinged to the hinge seat 741, the two connecting rods 742 are symmetrically distributed on two sides of the hinge seat 741, nut collars 743 are respectively disposed at end portions of the two connecting rods 742, the connecting rods 742 are hinged to the nut collars 743, double-threaded screws 744 passing through the two nut collars 743 simultaneously are disposed on the nut collars 743 in a penetrating manner, the thread spinning directions of two sides of the double-threaded screws 744 are opposite, and a rotating handwheel 745 is disposed at one end of the double-threaded screws 744. Two ends of the double-end screw 744 are fixed on the casing 100 and are rotatably connected with the casing 100, when the second transverse installation plate 730 needs to move downwards, the rotating hand wheel 745 is twisted in the forward direction to drive the double-end screw 744 to rotate in the forward direction, so that the two nut ferrules 743 are close to each other, the connecting rod 742 presses the second transverse installation plate 730 downwards, and the second transverse installation plate 730 moves downwards; when the second transverse mounting plate 730 needs to move upwards, the hand wheel 745 is rotated in a reverse twisting mode to drive the double-headed screw 744 to rotate reversely, so that the two nut ferrules 743 are far away from each other, the connecting rod 742 lifts the second transverse mounting plate 730 upwards, and the second transverse mounting plate 730 moves upwards.

In this embodiment, the second tensioning mechanism 780 includes a wedge-shaped inclined plane a781 disposed below the third transverse mounting plate 770, a top plate 782 is disposed on the left side of the third transverse mounting plate 770, a wedge-shaped inclined plane B783 is disposed on the top plate 782, a bolt 784 is disposed on the left side of the top plate 782, the bolt 784 and the top plate 782 are rotatably connected to each other, a first vertical mounting plate 785 is further disposed on the left side of the top plate 782, two sides of the first vertical mounting plate 785 are fixed on the housing 100, and an adjusting nut 786 sleeved on the bolt 784 is disposed on the first vertical mounting plate 78. When the third transverse mounting plate 770 needs to move upwards, the bolt 784 is twisted in the forward direction to drive the top plate 782 to move rightwards, so that the wedge-shaped inclined plane A781 slides upwards relative to the wedge-shaped inclined plane B783, and the third transverse mounting plate 770 moves upwards; when the third transverse mounting plate 770 needs to move downwards, the bolt 784 is turned reversely, the top plate 782 is driven to move left, the wedge-shaped inclined surface A781 slides downwards relative to the wedge-shaped inclined surface B783, and then the third transverse mounting plate 770 moves downwards.

The specific implementation mode is as follows: when the plug board 130 valve needs to be opened during operation, the adjusting screw rod 140 is rotated forward to enable the adjusting screw rod 140 to move leftward relative to the shell 100, so that the plug board 130 is driven to move leftward, the adjusting airflow channel 120 is opened, and meanwhile, in the process that the plug board 130 moves leftward, the fork wheel 220 is driven to rotate forward to enable the hinge to be opened, and airflow flows in the airflow channel 120; when the valve of the inserting plate 130 needs to be closed, the adjusting screw rod 140 is rotated reversely, so that the adjusting screw rod 140 moves rightwards relative to the shell 100, the inserting plate 130 is driven to move rightwards, the adjusting air flow channel 120 is closed, meanwhile, in the process that the inserting plate 130 moves rightwards, the fork wheel 220 is driven to rotate reversely, the hinge is closed, air flow is blocked by the inserting plate 130 and the hinge plate 200 at the same time, and when the hinge plate 200 is closed, dust is prevented from being accumulated on the inserting plate 130 when the inserting plate 130 is closed.

Above-mentioned operation flow and software and hardware configuration only do as the preferred embodiment of the utility model discloses a not therefore restrict the patent scope of the utility model, all utilize the utility model discloses the equivalent transform of doing of description and attached drawing content, or directly or indirectly use in relevant technical field, all the same reason is included in the patent protection scope of the utility model.

Claims

1. The utility model provides a hinge formula dustproof sealing push-pull valve, includes the casing, is provided with the division board at the casing middle part, is provided with airflow channel on the division board right side, wears to be equipped with the picture peg that is used for controlling airflow channel switching on the division board, and the picture peg can carry out lateral shifting relative to the division board, and the picture peg left end is provided with rotates the accommodate the lead screw of being connected with the picture peg, and accommodate the lead screw passes the casing left side and passes through threaded connection, its characterized in that with the casing: the left side of the partition board is provided with a plurality of hinge plates, the two sides of each hinge plate are provided with mounting plates for fixedly mounting the hinge plates, the hinge plates are rotatably connected with the mounting plates, one side of each hinge plate is provided with a fork wheel for driving the hinge plates to rotate, and the insertion plate is provided with a slot matched with the fork wheel.

2. The hinge type dust-proof sealing gate valve according to claim 1, characterized in that: two adjacent hinge plates are arranged in opposite directions.

3. The hinge type dust-proof sealing gate valve according to claim 2, characterized in that: and a sealing assembly is also arranged on the left side of the partition plate.

4. The hinge type dust-proof sealing gate valve according to claim 3, characterized in that: the sealing assembly comprises a labyrinth structure, an oil film structure, a V-shaped pressurizing structure and a spring bridge structure from right to left.

5. The hinge type dust-proof sealing gate valve according to claim 4, characterized in that: the labyrinth structure includes the first vertical baffle of a plurality of vertical installations, and vertical baffle distributes in the upper and lower both sides of picture peg, and one side that vertical baffle kept away from the picture peg is provided with the first horizontal mounting panel that is used for fixed mounting vertical baffle.

6. The hinge type dust-proof sealing gate valve according to claim 4, characterized in that: the oil film structure comprises oil storage felts distributed on the upper side and the lower side of the inserting plate, and fixing clamping plates are arranged on the left side and the right side of each oil storage felt.

7. The hinge type dust-proof sealing gate valve according to claim 4, characterized in that: the V-shaped pressurizing structure comprises second vertical partition plates distributed on the upper side and the lower side of the inserting plate, a V-shaped elastic partition plate is arranged at the end part, facing the inserting plate, of each vertical partition plate, and the opening of each V-shaped elastic partition plate faces the left side.

8. The hinge type dust-proof sealing gate valve according to claim 4, characterized in that: the spring bridge structure is including being located the rubber strip of picture peg upper end, set up a plurality of compression spring A above the rubber strip, be provided with the horizontal mounting panel of second in compression spring A top, be provided with the first straining device that is used for controlling the horizontal mounting panel of second and rises or descend above the horizontal mounting panel of second, be provided with the abrasive material strip at the picture peg lower extreme, be provided with compression spring B below the abrasive material strip, be provided with the horizontal mounting panel of third below the compression spring B, be provided with the second straining device that is used for controlling the horizontal mounting panel of third and rises or descend below the horizontal mounting panel of third.

9. The hinge type dust-proof sealing gate valve according to claim 8, characterized in that: the first tensioning mechanism comprises a hinged seat located in the middle of the second transverse mounting plate, two connecting rods are hinged to the hinged seat and symmetrically distributed on two sides of the hinged seat, nut rings are arranged at the end portions of the two connecting rods, the connecting rods are hinged to the nut rings, double-threaded screws penetrating through the two nut rings simultaneously penetrate through the nut rings, the self-rotating directions of threads on two sides of the double-threaded screws are opposite, and a rotating hand wheel is arranged at one end of each double-threaded screw.

10. The hinge type dust-proof sealing gate valve according to claim 8, characterized in that: the second tensioning mechanism comprises a wedge-shaped inclined plane A arranged below the third transverse mounting plate, a top plate is arranged on the left side of the third transverse mounting plate, a wedge-shaped inclined plane B is arranged on the top plate, a bolt is arranged on the left side of the top plate, the bolt and the top plate are rotatably connected, a first vertical mounting plate is arranged on the left side of the top plate, two sides of the first vertical mounting plate are fixed on the shell, and an adjusting nut sleeved on the bolt is arranged on the first vertical mounting plate.