CN213420053U

CN213420053U - Valve structure for preventing sealing surface from scouring

Info

Publication number: CN213420053U
Application number: CN202022250812.5U
Authority: CN
Inventors: 陈景进; 朱钊钢
Original assignee: Dingda Valve Co ltd
Current assignee: Dingda Valve Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-11
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a valve structure for preventing the erosion of a sealing surface, which comprises a valve body, wherein one side of the lower end of the valve body is provided with a water inlet, one side of the lower end of the valve body, which is far away from the water inlet, is provided with a water outlet, the water inlet and the water outlet are communicated with the inner cavity of the valve body, the inner cavity of the valve body is slidably connected with a valve core, the lower end of the valve core is fixed with a valve core sealing surface, the top of the valve core is provided with a valve rod, the upper end of the valve body is fixed with a protection mechanism for protecting the valve core sealing surface from the erosion of fluid, the protection mechanism comprises a protection box, a protection block, a threaded hole, a screw rod and a motor, the upper end of the valve body is fixed with a protection box, the protection box is arranged in a cuboid, the utility model discloses can sealed face of effectual protection case not erodeed, prolong the life of valve.

Description

Valve structure for preventing sealing surface from scouring

Technical Field

The utility model relates to the technical field of valves, specifically be a valve structure that sealed face erodees is prevented.

Background

Valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be classified into shut-off valves, check valves, regulating valves, etc. according to their functions, the valves are control parts in a fluid conveying system, have functions of stopping, regulating, guiding, preventing backflow, stabilizing pressure, shunting or overflowing pressure relief, etc., are used for valves of fluid control systems, ranging from the simplest stop valves to various valves used in extremely complicated automatic control systems, and have quite various varieties and specifications, the valves can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oils, liquid metals and radioactive media, etc., and are classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, etc. according to the materials, dual phase steel valves, plastic valves, non-standard valves, and the like.

The valve core sealing surface of the valve is easily subjected to the phenomena of gap, pitting corrosion and the like after being washed by fluid for a long time in the open state of the valve core, so that the valve core is not tightly sealed when closed, and the leakage phenomenon is caused. Therefore, a valve structure for preventing the sealing surface from being washed away is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve structure that sealed face erodees is prevented 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 utility model provides a valve structure that sealed face erodees, includes the valve body, the water inlet has been seted up to one side of the lower extreme of valve body, the delivery port has been seted up to one side that the water inlet was kept away from to the valve body lower extreme, and water inlet and delivery port all are linked together with the inner chamber of valve body, the inner chamber sliding connection of valve body has the case, the lower extreme of case is fixed with the sealed face of case, the valve rod is installed at the top of case, the upper end of valve body is fixed with the protection machanism that is used for protecting.

Preferably, the protection mechanism includes protection box, protection piece, screw hole, screw rod and motor, the upper end of valve body is fixed with the protection box, the protection box is the setting of cuboid form, and the protection box is linked together with the valve body inner chamber, the inner wall symmetry sliding connection of protection box has the protection piece, the middle part set up screw hole of protection piece, the protection piece has the screw rod through screw hole threaded connection, the one end that the protection piece was kept away from to the screw rod is passed through the bearing and is connected with the inner wall rotation of protection box, the both ends symmetry of protection box is fixed with the motor, the one end that the screw rod is close to the motor is passed the protection box and is fixed with the output of motor.

Preferably, the valve core sealing surface is arranged in a conical shape.

Preferably, one end of the inner cavity of the valve body, which is close to the water inlet, is fixed with a valve body sealing surface, and the valve body sealing surface is matched with the valve core sealing surface.

Preferably, the lower end of the valve body is symmetrically provided with a connecting port, the inner wall of the connecting port is provided with threads, and the inner wall of the connecting port is fixedly provided with a first sealing ring.

Preferably, a second sealing ring is fixed at the lower end of the valve core sealing surface.

Compared with the prior art, the beneficial effects of the utility model are that:

when the utility model is used, the valve is connected with the water pipe of the use position through the two connecting ports and the screw thread, the first sealing ring which is arranged at the same time can ensure that the valve is tightly connected with the water pipe of the use position, and further when the valve is closed, the screw rod is driven to rotate through the driving motor, so that the two protection blocks move along the inner wall of the protection box towards the direction which is far away from each other, further the valve rod moves downwards, further the valve core is driven to move downwards along the inner wall of the valve body until the sealing surface of the valve core is contacted with the sealing surface of the valve body, meanwhile, the second sealing ring is tightly pressed against the valve body, so that the water of the water inlet is stopped, when the valve is opened, the valve rod moves upwards, further the valve core is driven to move upwards along the inner cavity of the valve body, the sealing surface of, and when the sealed face of case removed to the protection piece upper end, two motors of drive the screw rod and rotate, and then drive two protection pieces and slide to the direction that is close to each other along the protection box inner wall, it is inconsistent until two protection pieces for rivers cut apart with the sealed face of case, avoid the sealed face of case to accept washing away of rivers for a long time, the utility model discloses can the sealed face of effectual protection case not erodeed, prolonged the life of valve.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the point A of the present invention;

FIG. 3 is an enlarged view of the point B of the present invention;

fig. 4 is an enlarged view of the position C of the present invention.

In the figure: 1. a valve body; 2. a water inlet; 3. a water outlet; 4. a valve core; 5. a valve core sealing surface; 6. a valve stem; 7. a protection mechanism; 71. a protective case; 72. a protection block; 73. a threaded hole; 74. a screw; 75. a motor; 8. a valve body sealing surface; 9. a connecting port; 10. a thread; 11. a first seal ring; 12. and a second seal ring.

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 and fig. 2, the present invention provides a technical solution: the utility model provides a valve structure of sealed face scour protection, includes valve body 1, water inlet 2 has been seted up to one side of the lower extreme of valve body 1, the delivery port 3 has been seted up to one side that water inlet 2 was kept away from to 1 lower extreme of valve body, and water inlet 2 all is linked together with the inner chamber of valve body 1 with delivery port 3, the inner chamber sliding connection of valve body 1 has case 4, the lower extreme of case 4 is fixed with the sealed face 5 of case, valve rod 6 is installed at the top of case 4, the upper end of valve body 1 is fixed with and is used for protecting the sealed face 5 of case not receiving the protection mach.

Referring to fig. 1, the protection mechanism 7 includes a protection box 71, a protection block 72, a threaded hole 73, a screw 74 and a motor 75, the protection box 71 is fixed at the upper end of the valve body 1, the protection box 71 is disposed in a rectangular shape, the protection box 71 is communicated with an inner cavity of the valve body 1, the protection block 72 is symmetrically and slidably connected to an inner wall of the protection box 71, the threaded hole 73 is formed in the middle of the protection block 72, the screw 74 is threadedly connected to the protection block 72 through the threaded hole 73, one end of the screw 74, which is far away from the protection block 72, is rotatably connected to the inner wall of the protection box 71 through a bearing, the motors 75 are symmetrically fixed at two ends of the protection box 71, one end of the screw 74, which is close to the motor 75, penetrates through the protection box 71 and is fixed to an output end.

Referring to fig. 2, the valve core sealing surface 5 is arranged in a conical shape, so that the valve core sealing surface can be conveniently matched with the valve body sealing surface 8, and the sealing performance of the valve is improved.

Referring to fig. 3, a valve body sealing surface 8 is fixed at one end of the inner cavity of the valve body 1 close to the water inlet 2, and the valve body sealing surface 8 is matched with the valve core sealing surface 5, so that the valve sealing effect can be improved.

Referring to fig. 4, the lower end of the valve body 1 is symmetrically provided with a connecting port 9, the inner wall of the connecting port 9 is provided with threads 10, and the inner wall of the connecting port 9 is fixed with a first sealing ring 11, which is convenient for installing a valve.

Referring to fig. 2, a second sealing ring 12 is fixed to the lower end of the valve core sealing surface 5, so that the sealing performance of the valve can be improved.

The working principle is as follows:

when the valve is opened, the valve rod 6 is moved upwards to drive the valve core 4 to move upwards along the inner cavity of the valve body 1 to separate the valve core sealing surface 5 from the valve body sealing surface 8, and the second sealing ring 12 is pressed against the valve body 1 to stop water at the water inlet 2, so that water at the water inlet 2 enters the water outlet 3 through the inner cavity of the valve body 1 by moving the valve rod 6 upwards, when the valve core sealing surface 5 moves to the upper end of the protection block 72, the two motors 75 are driven to drive the screw rods 74 to rotate, so that the two protection blocks 72 are driven to slide along the inner wall of the protection box 71 in the direction close to each other until the two protection blocks 72 are abutted, water flow is separated from the valve core sealing surface 5, and the valve core sealing surface 5 is prevented from being washed by the water flow for a long time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides a valve structure that sealed face erodees prevents, includes valve body (1), its characterized in that: a water inlet (2) is formed in one side of the lower end of the valve body (1), a water outlet (3) is formed in one side, far away from the water inlet (2), of the lower end of the valve body (1), the water inlet (2) and the water outlet (3) are communicated with an inner cavity of the valve body (1), a valve core (4) is connected to the inner cavity of the valve body (1) in a sliding mode, a valve core sealing surface (5) is fixed to the lower end of the valve core (4), a valve rod (6) is installed at the top of the valve core (4), a protection mechanism (7) used for protecting the valve core sealing surface (5) from being washed by fluid is fixed to the upper end of the valve body (1), the protection mechanism (7) comprises a protection box (71), a protection block (72), a threaded hole (73), a screw rod (74) and a motor (75), the protection box (71) is fixed, and protection box (71) are linked together with valve body (1) inner chamber, the inner wall symmetry sliding connection of protection box (71) has protection piece (72), screw hole (73) have been seted up at the middle part of protection piece (72), protection piece (72) have screw rod (74) through screw hole (73) threaded connection, the one end that protection piece (72) were kept away from in screw rod (74) is passed through the bearing and is connected with the inner wall rotation of protection box (71), the both ends symmetry of protection box (71) is fixed with motor (75), the one end that screw rod (74) are close to motor (75) is passed protection box (71) and is fixed with the output of motor (75).

2. A valve structure for preventing a sealing surface from being washed away according to claim 1, wherein: the valve core sealing surface (5) is arranged in a conical shape.

3. A valve structure for preventing a sealing surface from being washed away according to claim 2, wherein: one end, close to the water inlet (2), of the inner cavity of the valve body (1) is fixed with a valve body sealing surface (8), and the valve body sealing surface (8) is matched with the valve core sealing surface (5).

4. A valve structure for preventing a sealing surface from being washed away according to claim 1, wherein: the lower end of the valve body (1) is symmetrically provided with a connecting port (9), the inner wall of the connecting port (9) is provided with threads (10), and the inner wall of the connecting port (9) is fixed with a first sealing ring (11).

5. A valve structure for preventing a sealing surface from being washed away according to claim 3, wherein: and a second sealing ring (12) is fixed at the lower end of the valve core sealing surface (5).