CN213839630U

CN213839630U - Valve sealing structure

Info

Publication number: CN213839630U
Application number: CN202023134315.5U
Authority: CN
Inventors: 张云霞; 杜易苇
Original assignee: Shandong Zhuoyang Intelligent Environmental Protection Equipment Co ltd
Current assignee: Shandong Zhuoyang Intelligent Environmental Protection Equipment Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-07-30
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a valve sealing structure, which comprises a valve body, a control groove is arranged in the middle of the upper side wall of the valve body, the upper side wall of the control groove is provided with a threaded hole, a screw rod is connected with the threaded hole through an internal thread, the upper end of the screw rod is provided with a handle, the lower end of the screw rod is provided with a gate in a rotating way, the gate is a ceramic gate, the left end and the right end of the lower side wall in the control groove are respectively provided with a first sealing gasket, a fluid channel is arranged in the middle of the valve body, the upper end of the gate of the utility model gradually compresses the first sealing gasket in the downward moving process, simultaneously, the lower side wall of the gate downwards presses a movable cover, so that the movable cover moves downwards, the lower ends of the left side wall and the right side wall of the movable cover respectively drive one end of two rotating rods to move downwards, the two rotating rods rotate around the rotating shaft, the other end respectively drives a mandril to move upwards, the mandril drives a top plate to extrude a second sealing gasket when the mandril moves upwards, thereby enhancing the sealing effect.

Description

Valve sealing structure

Technical Field

The utility model relates to the technical field of valves, specific field is valve seal structure.

Background

The valve is a control part in the fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, etc., is used for the valve of the fluid control system, from the simplest stop valve to various valves used in a very complicated automatic control system, the variety and the specification are quite various, the known valve structure is that the position of the sealing element for stopping the fluid is the position with the smallest cross section of a fluid channel, when the fluid passes through the position of the sealing element, the flow rate of the fluid is accelerated due to the small channel area, the fast flowing fluid usually has the erosion effect on the sealing element of the valve, particularly, the fluid pressure difference between two ends of the valve is large at the moment of opening and closing the valve, the fast flowing fluid has extremely obvious influence on the erosion of the rubber and plastic sealing element of the valve, the aging of the sealing element directly reduces the sealing performance of the valve, and has the advantages of stopping, regulating, guiding, preventing reverse flow, stabilizing pressure, shunting or overflowing and relieving pressure, etc Inconvenience is caused in life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the valve sealing structure comprises a valve body, wherein a control groove is arranged in the middle of the upper side wall of the valve body, the upper side wall of the control groove is provided with a threaded hole, a threaded hole is connected with a screw rod in a threaded manner, the upper end of the screw rod is provided with a handle, the lower end of the screw rod is rotatably provided with a gate, the gate is a ceramic gate, the left end and the right end of the inner lower side wall of the control groove are respectively provided with a first sealing gasket, the middle of the valve body is provided with a fluid channel, the lower side wall of the fluid channel is provided with a butt joint groove corresponding to the gate, the lower side wall of the butt joint groove is respectively provided with a first groove and a second groove, the second grooves are arranged on the left side and the right side of the first groove, a rotating groove is respectively arranged between the first groove and the second grooves, a rotating shaft is respectively arranged between the front side wall and the rear side wall of the two rotating grooves, a rotating shaft is rotatably sleeved with a rotating rod, the inner lower side wall of the first groove is provided with a telescopic rod, and a spring is sleeved on the upper end of the telescopic rod, the upper end of telescopic link is equipped with and removes the cover, two the inside lower lateral wall of second recess has the one end of ejector pin, two respectively through spring elastic connection the other end of ejector pin is equipped with the roof respectively, the lower lateral wall of gate just corresponds two the roof is equipped with the sealed pad of second respectively, the lower extreme of the left and right sides wall of removal cover rotates respectively and is connected with two the one end of bull stick, two the lower extreme of ejector pin rotates respectively and connects two the other end of bull stick, both ends are equipped with the connector respectively about the valve body, fluid passage's last lateral wall just is in both ends are equipped with the seal groove respectively about the gate, two the inside wall of seal groove is equipped with the rubber pad respectively, the lateral wall of gate just corresponds two the seal groove is equipped with the kicking block respectively.

Preferably, the lower side wall of the handle at the upper end of the screw rod and the upper side wall of the control groove are respectively provided with an annular clamping groove and an annular clamping block.

Preferably, the left side wall and the right side wall of each of the two sealing grooves are inclined planes respectively.

Preferably, the left side wall and the right side wall of the movable cover are connected with the left side wall and the right side wall of the first groove in a sliding mode through sliding rails respectively.

Preferably, the upper side wall of the movable cover is provided with a ceramic pad.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a valve seal structure, the utility model discloses an in-process that the gate was moving down, its upper end compresses tightly first sealed pad gradually, the lower lateral wall of gate is the removal cover of pushing down simultaneously, make to move the cover and move down, it is moving down to move the cover, its left and right sides wall lower extreme drives the one end of two bull sticks respectively and moves down, two bull sticks rotate around the pivot immediately and the other end drives the ejector pin respectively and shifts up, the ejector pin drives the sealed pad of roof extrusion second when shifting up, thereby sealed effect has been strengthened, effectively prevented sealed pad ageing and the closure that causes from descending, and the change frequency of sealed pad has been reduced.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

FIG. 2 is a schematic diagram of the structure of the gate viewed from the right side;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1-valve body, 2-control groove, 3-screw, 4-gate, 5-first sealing gasket, 6-fluid channel, 7-butt joint groove, 8-first groove, 9-second groove, 10-rotation groove, 11-rotation rod, 12-expansion rod, 13-moving cover, 14-ejector rod, 15-top plate, 16-second sealing gasket, 17-connecting port, 18-sealing groove and 19-top block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a valve sealing structure comprises a valve body 1, wherein a control groove 2 is arranged in the middle of the upper side wall of the valve body 1, the upper side wall of the control groove 2 is provided with a threaded hole and is internally threaded with a screw rod 3, the upper end of the screw rod 3 is provided with a handle, the lower end of the screw rod 3 is rotated to be provided with a gate 4 and the gate 4 is a ceramic gate, so that the gate 4 has better pressure resistance, the left end and the right end of the lower side wall in the control groove 2 are respectively provided with a first sealing gasket 5, the middle of the valve body 1 is provided with a fluid channel 6, the lower side wall of the fluid channel 6 is provided with a butt joint groove 7 corresponding to the gate 4, the lower side wall of the butt joint groove 7 is respectively provided with a first groove 8 and a second groove 9, the second groove 9 is arranged at the left side and the right side of the first groove 8, and a rotating groove 10 is respectively, a rotating shaft is respectively arranged between the front side wall and the rear side wall of the two rotating grooves 10, a rotating rod 11 is rotatably sleeved on the rotating shaft, a telescopic rod 12 is arranged on the inner lower side wall of the first groove 8, a spring is sleeved on the upper end of the telescopic rod 12, a moving cover 13 is arranged on the upper end of the telescopic rod 12, one end of a top rod 14 is respectively connected to the inner lower side walls of the two second grooves 9 through spring elasticity, the other ends of the two top rods 14 are respectively provided with a top plate 15, a second sealing gasket 16 is respectively arranged on the lower side wall of the gate 4 and corresponds to the two top plates 15, the lower ends of the left side wall and the right side wall of the moving cover 13 are respectively rotatably connected with one end of the two rotating rods 11, the lower ends of the two top rods 14 are respectively rotatably connected with the other end of the two rotating rods 11, and a user can rotate the screw rod 3 to move the screw rod 3 downwards and push the gate 4 to move downwards, thereby closing the fluid channel 6, when the gate 4 moves downwards, the upper end of the gate gradually presses the first seal and the second seal 5, and simultaneously the lower side wall of the gate 4 presses the movable cover 13 downwards, so that the movable cover 13 moves downwards, the lower ends of the left and right side walls of the movable cover 13 respectively drive one end of the two rotating rods 11 to move downwards, the two rotating rods 11 immediately rotate around the rotating shaft, the other end of the two rotating rods respectively drive the two ejector rods 14 to move upwards, the ejector rods 14 drive the top plate 15 to extrude the second seal gasket 16 when moving upwards, thereby enhancing the sealing effect, the left and right ends of the valve body 1 are respectively provided with a connecting port 17, the upper side wall of the fluid channel 6 and the left and right ends of the gate 4 are respectively provided with a seal groove 18, the inner side walls of the two seal grooves 18 are respectively provided with rubber pads, the outer side wall of the gate 4 and the two seal grooves 18 are respectively provided with a top block 19, when a user needs to open the fluid channel 6, the screw 3 needs to be rotated to enable the screw 3 to drive the gate 4 to move upwards, and the top block 19 is inserted into the sealing groove 18, so that the control groove 2 can be sealed.

Specifically, the lower side wall of the handle at the upper end of the screw rod 3 and the upper side wall of the control groove 2 are respectively provided with an annular clamping groove and an annular clamping block, so that the handle can be fixed with the upper side wall of the control groove 2, and a worker can be prevented from mistakenly touching the handle when the fluid channel 6 is closed.

Specifically, the left and right side walls of the two seal grooves 18 are inclined surfaces for inserting the top block 19.

Specifically, the left and right side walls of the movable cover 13 are slidably connected with the left and right side walls of the first groove 8 through sliding rails, so that the movable cover 13 is more stable in the up-and-down movement process.

Specifically, the upper side wall of the moving cover 13 is provided with a ceramic pad to reduce the impact of the moving cover 13 by the fluid in the fluid passage 6.

The working principle is as follows: the utility model discloses when using, the user accessible rotates screw rod 3 and makes screw rod 3 move down and promote gate 4 and move down, thereby close fluid passage 6, gate 4 is at the in-process that moves down, its upper end compresses tightly first sealed pad 5 gradually, simultaneously the lower lateral wall of gate 4 pushes down and removes cover 13, make and remove cover 13 and move down, it is in the time of moving down to remove cover 13, its left and right sides wall lower extreme drives the one end of two bull sticks 11 respectively and moves down, two bull sticks 11 move up around pivot rotation and other end drive ejector pin 14 respectively immediately, ejector pin 14 drives the sealed 16 of roof 15 extrusion second when moving up, thereby sealed effect has been strengthened, when the user need open fluid passage 6, need rotate screw rod 3 and make screw rod 3 drive gate 4 and shift up, and make in ejector block 19 inserts seal groove 18, can accomplish the sealed of control groove 2.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Valve seal structure, including valve body (1), its characterized in that: the improved valve is characterized in that a control groove (2) is arranged in the middle of the upper side wall of the valve body (1), the upper side wall of the control groove (2) is provided with a threaded hole and the threaded hole is connected with a screw rod (3) in an inner thread manner, the upper end of the screw rod (3) is provided with a handle, the lower end of the screw rod (3) is rotated to be provided with a gate (4) and the gate (4) is a ceramic gate, the left end and the right end of the lower side wall in the control groove (2) are respectively provided with a first sealing gasket (5), the middle of the valve body (1) is provided with a fluid channel (6), the lower side wall of the fluid channel (6) is provided with a butt joint groove (7) corresponding to the gate (4), the lower side wall of the butt joint groove (7) is respectively provided with a first groove (8) and a second groove (9), the second groove (9) is arranged on the left side and the right side of the first groove (8), a rotating groove (10) is respectively arranged between the first groove (8) and the second groove (9), the rotary shafts are respectively arranged between the front side wall and the rear side wall of the two rotary grooves (10), the rotary shafts are respectively provided with a rotary rod (11) in a rotating mode, the lower side wall in the first groove (8) is provided with a telescopic rod (12) and the upper end of the telescopic rod (12) is provided with a spring in a sleeved mode, the upper end of the telescopic rod (12) is provided with a movable cover (13), the lower side wall in the second groove (9) is respectively connected with one end of a push rod (14) through the spring in an elastic mode, the other end of the push rod (14) is respectively provided with a top plate (15), the lower side wall of the gate (4) is respectively provided with a second sealing gasket (16) corresponding to the two top plates (15), the lower ends of the left side wall and the right side wall of the movable cover (13) are respectively and rotatably connected with one end of the rotary rods (11), and the lower ends of the push rods (14) are respectively and rotatably connected with the other ends of the rotary rods (11), both ends are equipped with connector (17) respectively about valve body (1), the last lateral wall of fluid passage (6) just is in both ends are equipped with seal groove (18) respectively about gate (4), two the inside wall of seal groove (18) is equipped with the rubber pad respectively, the lateral wall of gate (4) just corresponds two seal groove (18) are equipped with kicking block (19) respectively.

2. A valve sealing structure according to claim 1, wherein: and the lower side wall of the handle at the upper end of the screw rod (3) and the upper side wall of the control groove (2) are respectively provided with an annular clamping groove and an annular clamping block.

3. A valve sealing structure according to claim 1, wherein: the left side wall and the right side wall of each of the two sealing grooves (18) are respectively provided with an inclined surface.

4. A valve sealing structure according to claim 1, wherein: the left side wall and the right side wall of the movable cover (13) are connected with the left side wall and the right side wall of the first groove (8) in a sliding mode through sliding rails respectively.

5. A valve sealing structure according to claim 1, wherein: and a ceramic pad is arranged on the upper side wall of the movable cover (13).