CN220551511U

CN220551511U - Combined flange valve

Info

Publication number: CN220551511U
Application number: CN202321766276.1U
Authority: CN
Inventors: 刘云喜
Original assignee: Tianjin Feihuan Valve Group Co ltd
Current assignee: Tianjin Feihuan Valve Group Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-03-01
Anticipated expiration: 2033-07-06

Abstract

The utility model relates to the technical field of flange valves, and discloses a combined flange valve, which solves the technical problems that when a valve body does not have pressure buffering, the pressure in the valve body is increased suddenly, the joint of the flange is easy to leak; the valve comprises a valve body and a buffer tank, wherein a valve plate is arranged in the valve body, a valve rod is fixedly connected to the valve plate, a first rod sleeve is fixedly arranged at the top end of the valve body, a second rod sleeve is fixedly connected to the top end of the first rod sleeve through two first flanges, a shell is fixedly arranged at the top end of the second rod sleeve, and the top end of the valve rod penetrates through the shell and is fixedly connected with a worm wheel; according to the utility model, the buffer tank is connected with the valve body through the connecting pipe and the neck pipe, so that the communication between the buffer tank and the valve body can be ensured, when the pressure of fluid in the valve body is increased suddenly, the pressure can be transferred to the supporting spring, the supporting spring is compressed and contracted, the sealing piston can be lowered, and the buffer can be provided for the increased suddenly.

Description

Combined flange valve

Technical Field

The utility model relates to the technical field of flange valves, in particular to a combined flange valve.

Background

The valve is a pipeline accessory for controlling medium flow or stop, flow direction and flow speed in a pipeline, the flange is a part for connecting shafts, the flange can be used for connecting the pipeline and the accessory, the valve and the pipeline can adopt the flange as a connecting mode, and the valve and the pipeline can be divided into a shutoff valve, a check valve, a regulating valve and the like according to the functions of the valve and the pipeline;

according to the "high-pressure-resistant valve rod combined flange" provided by Chinese patent grant publication No. CN213629338U, the valve body can be assembled and installed through the flange plate, but when the valve body does not have pressure buffering, the pressure inside the valve body is suddenly increased, the leakage of the joint of the flange plate is easily caused, the valve rod is required to be manually rotated, the valve body can be opened and closed, the labor is relatively consumed, and the self-locking property of the valve rod is difficult to ensure.

Disclosure of Invention

The utility model provides a combined flange valve, which solves the technical problem that when the pressure in the valve body is suddenly increased and the joint of a flange plate is easily leaked when the valve body does not have pressure buffering, the valve body can be assembled and installed through the flange plate.

In order to solve the technical problems, the combined flange valve comprises a valve body and a buffer tank, wherein a valve plate is arranged in the valve body, a valve rod is fixedly connected to the valve plate, a first rod sleeve is fixedly arranged at the top end of the valve body, a second rod sleeve is fixedly connected to the top end of the first rod sleeve through two first flanges, a shell is fixedly arranged at the top end of the second rod sleeve, the top end of the valve rod penetrates through the shell and is fixedly connected with a worm wheel, a worm is rotatably connected to the inside of the shell, the worm is in meshed connection with the worm wheel, a motor is connected to the worm, a connecting pipe is welded to the bottom of the valve body, a neck pipe is fixedly connected to the connecting pipe through two second flanges, the buffer tank is fixedly arranged at the bottom end of the neck pipe, a sealing piston is slidingly connected to the inside of the buffer tank, a sealing sleeve is arranged on the surface of the sealing piston, and a supporting spring is arranged at the bottom end of the sealing piston.

Preferably, the bottom and the top of the valve rod are respectively connected with the inside of the valve body and the inside of the shell in a rotating way, the front surface of the shell is fixedly connected with a cover plate through screws, the motor is fixedly connected with one side of the back surface of the shell, and the output shaft of the motor is fixedly connected with one end of the worm.

Preferably, the valve rod is connected with the first rod sleeve and the second rod sleeve in a penetrating way, the bottom of the valve rod is sleeved with sealing filler, and the sealing filler is positioned in the first rod sleeve.

Preferably, the two first flanges are fixedly connected with the top end of the first rod sleeve and the bottom end of the second rod sleeve respectively, one side of the bottom end of the first flange is provided with a clamping block, one side of the top end of the first flange is provided with a clamping groove, the clamping block is connected with the clamping groove in a clamping way, and a first sealing ring is arranged between the two first flanges.

Preferably, the two second flanges are fixedly connected with the bottom end of the connecting pipe and the top end of the neck pipe respectively, a second sealing ring is arranged between the two second flanges, and the two ends of the valve body are fixedly connected with third flanges.

Preferably, the bottom of buffer tank is through go-between fixedly connected with sealed lid, be equipped with the third sealing washer between sealed lid and the go-between, the middle part on sealed top and the middle part on sealed piston bottom all are equipped with the spring post, the both ends of supporting spring are connected with two spring post block respectively.

Compared with the related art, the utility model has the beneficial effects that:

the utility model provides a combined flange valve, which is characterized in that a buffer tank is connected with a valve body through a connecting pipe and a neck pipe, so that the communication between the buffer tank and the valve body can be ensured, fluid in the valve body can enter the buffer tank, a supporting spring in the buffer tank can support a sealing piston and keep the height of the sealing piston, a sealing sleeve can ensure the tightness of the sealing piston, the fluid can be prevented from reaching the bottom end of the sealing piston, when the pressure of the fluid in the valve body is increased suddenly, the pressure can be transmitted to the supporting spring, the supporting spring is compressed and contracted, the sealing piston can be lowered, the fluid storage space can be increased after the sealing piston is lowered, the buffer can be provided for the suddenly increased pressure, the compression resistance is improved, and the joint of the flange is not easy to leak;

through motor forward and backward drive worm, the worm can drive worm wheel forward and backward rotation, the worm wheel can drive the valve plate through the valve rod and rotate, can carry out the operation that opens and shuts of valve body, do not need manual operation, saved the manpower, the worm wheel can lock the valve rod through the angle friction between with the worm, can play the effect of auto-lock, the in-process of opening and shutting the valve body, fixture block and draw-in groove can improve the fastness and the stability between two first flanges, be difficult for not hard up between two first flanges, can guarantee good sealing state, can guarantee the leakproofness between two first flanges through first sealing washer, with shell and buffer tank and valve body combination through two first flanges and two second flanges, have good fastness and leakproofness, and conveniently install and dismantle it, through opening sealed lid, conveniently install and tear sealed piston and supporting spring open.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a valve body according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a surge tank according to the present utility model;

fig. 4 is a schematic view of the structure of the worm wheel of the present utility model.

Reference numerals in the drawings: 1. a valve body; 2. a valve plate; 3. a valve stem; 4. a first sleeve; 5. a first flange; 6. a first seal ring; 7. a second sleeve; 8. a housing; 9. a worm wheel; 10. a worm; 11. a cover plate; 12. a motor; 13. a connecting pipe; 14. a second flange; 15. a neck tube; 16. a buffer tank; 17. a connecting ring; 18. sealing cover; 19. a sealing piston; 20. sealing sleeve; 21. a support spring; 22. a spring post; 23. a second seal ring; 24. sealing filler; 25. a third flange; 26. a clamping block; 27. and a third sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a combined flange valve comprises a valve body 1 and a buffer tank 16, a valve plate 2 is arranged in the valve body 1, a valve rod 3 is fixedly connected with the valve plate 2, a first rod sleeve 4 is fixedly arranged at the top end of the valve body 1, a second rod sleeve 7 is fixedly connected with the top end of the first rod sleeve 4 through two first flanges 5, a shell 8 is fixedly arranged at the top end of the second rod sleeve 7, the top end of the valve rod 3 penetrates through the shell 8 and is fixedly connected with a worm wheel 9, a worm 10 is rotatably connected with the inside of the shell 8, the worm 10 is meshed with the worm wheel 9, a motor 12 is connected with the worm wheel 10, a connecting pipe 13 is welded at the bottom of the valve body 1, a neck pipe 15 is fixedly connected with the connecting pipe 13 through two second flanges 14, a buffer tank 16 is fixedly arranged at the bottom end of the neck pipe 15, a sealing piston 19 is slidingly connected with the inside of the buffer tank 16, a sealing sleeve 20 is arranged on the surface of the sealing piston 19, a supporting spring 21 is arranged at the bottom end of the sealing piston 19, the worm 10 is driven by the motor 12 to drive the worm 10 to rotate in the reverse direction, the worm 9 can drive the worm wheel 2 to rotate in the reverse direction, the worm wheel 9 can drive the valve plate 2 through the valve rod 3 to rotate, the worm wheel 1 can be opened and closed, the worm wheel can be manually and closed, the operation can be performed, the manual friction and closed and the worm wheel can be locked with the valve rod 3 can be locked by the worm 3.

Referring to fig. 1 and 4, the bottom and top of the valve rod 3 are respectively connected with the inside of the valve body 1 and the inside of the housing 8 in a rotating manner, the front surface of the housing 8 is fixedly connected with a cover plate 11 through screws, a motor 12 is fixedly connected with one side of the back surface of the housing 8, an output shaft of the motor 12 is fixedly connected with one end of the worm 10, protection can be provided for the inside of the housing 8 through the cover plate 11, and the worm 10 can be driven to rotate through the motor 12.

Referring to fig. 2, the valve rod 3 is connected with the first rod sleeve 4 and the second rod sleeve 7 in a penetrating way, the sealing filler 24 is sleeved at the bottom of the valve rod 3, the sealing filler 24 is positioned in the first rod sleeve 4, the sealing property between the valve rod 3 and the first rod sleeve 4 can be ensured through the sealing filler 24, and leakage is not easy to occur.

Referring to fig. 1 and 2, two first flanges 5 are respectively fixedly connected with the top end of the first rod sleeve 4 and the bottom end of the second rod sleeve 7, one side of the bottom end of one first flange 5 is provided with a clamping block 26, one side of the top end of the other first flange 5 is provided with a clamping groove, the clamping block 26 is connected with the clamping groove in a clamping way, a first sealing ring 6 is arranged between the two first flanges 5, the firmness and the stability between the two first flanges 5 can be improved through the clamping block 26 and the clamping groove, the two first flanges 5 are not easy to loosen in the process of opening and closing the valve body 1, and the tightness between the two first flanges 5 can be ensured through the first sealing ring 6.

Referring to fig. 1 and 3, the two second flanges 14 are fixedly connected with the bottom end of the connecting pipe 13 and the top end of the neck pipe 15 respectively, a second sealing ring 23 is arranged between the two second flanges 14, the two ends of the valve body 1 are fixedly connected with a third flange 25, and the tightness between the two second flanges 14 can be ensured through the second sealing ring 23.

Referring to fig. 3, the bottom of the buffer tank 16 is fixedly connected with a sealing cover 18 through a connecting ring 17, a third sealing ring 27 is arranged between the sealing cover 18 and the connecting ring 17, spring columns 22 are respectively arranged in the middle of the top end of the sealing cover 18 and the middle of the bottom end of the sealing piston 19, two ends of a supporting spring 21 are respectively connected with the two spring columns 22 in a clamping mode, the bottom end of the buffer tank 16 can be plugged through the sealing cover 18, the supporting spring 21 can be supported and limited by matching with the spring columns 22, the sealing performance of the sealing cover 18 can be guaranteed by the third sealing ring 27, and the anti-permeability capacity of the inside of the buffer tank 16 is improved.

In summary, in the utility model, the valve body 1 is connected with the medium pipeline through the third flange 25, then the worm 10 is driven forward and backward through the motor 12, the worm 10 can drive the worm wheel 9 to rotate forward and backward, the worm wheel 9 can drive the valve plate 2 to rotate through the valve rod 3, the opening and closing operation of the valve body 1 can be carried out, after the work of the motor 12 is stopped, the worm wheel 9 can lock the valve rod 3 through the angle friction between the worm 10, the self-locking effect can be achieved, the clamping block 26 and the clamping groove can improve the firmness and the stability between the two first flanges 5 in the process of opening and closing the valve body 1, the two first flanges 5 are not easy to loosen, a good sealing state can be ensured, when the pressure of fluid in the valve body 1 is increased suddenly, the pressure can be transmitted to the supporting spring 21, the supporting spring 21 is pressed and contracted, the sealing piston 19 can be lowered, the fluid storage space can be increased after the sealing piston 19 is lowered, the increased pressure of the sealing piston 19 can be buffered, the junction of the flange is not easy to leak, the pressure of the fluid in the valve body 1 can be reduced, the pressure transmitted to the supporting spring 21 can be pushed by the supporting spring 21, the sealing piston 19 can be reduced, the sealing piston 19 can be opened by the sealing piston 16 and the sealing piston 18 can be opened by the sealing piston 1, the sealing piston 18 can be convenient for the two sealing piston 1 and the sealing piston 1 can be opened by the second flange, and the sealing body can be opened by the sealing case and the sealing body 18, and the sealing can be convenient for the assembly can be opened by the assembly and the valve body can be convenient for the assembly.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a combination formula flange valve, includes valve body (1) and buffer tank (16), its characterized in that: the inside of valve body (1) is equipped with valve plate (2), valve plate (2) fixedly connected with valve rod (3), the top of valve body (1) is fixed and is equipped with first pole cover (4), the top of first pole cover (4) is through two first flange (5) fixedly connected with second pole cover (7), the top of second pole cover (7) is fixed and is equipped with shell (8), the top of valve rod (3) runs through shell (8) and fixedly connected with worm wheel (9), the inside rotation of shell (8) is connected with worm (10), worm (10) are connected with worm wheel (9) meshing, worm (10) are connected with motor (12), the bottom welding of valve body (1) has connecting pipe (13), connecting pipe (13) are through two second flange (14) fixedly connected with neck pipe (15), the bottom mounting of neck pipe (15) is equipped with buffer tank (16), the inside sliding connection of buffer tank (16) has seal piston (19), seal piston (19) surface is equipped with seal sleeve (21).

2. The combined flange valve according to claim 1, wherein the bottom end and the top end of the valve rod (3) are respectively and rotatably connected with the interior of the valve body (1) and the interior of the housing (8), the front surface of the housing (8) is fixedly connected with a cover plate (11) through screws, the motor (12) is fixedly connected with one side of the back surface of the housing (8), and the output shaft of the motor (12) is fixedly connected with one end of the worm (10).

3. A combined flange valve according to claim 1, characterized in that the valve rod (3) is connected with the first rod sleeve (4) and the second rod sleeve (7) in a penetrating way, the bottom of the valve rod (3) is sleeved with a sealing filler (24), and the sealing filler (24) is positioned in the first rod sleeve (4).

4. The combined flange valve according to claim 1, wherein two first flanges (5) are fixedly connected with the top ends of the first rod sleeve (4) and the bottom ends of the second rod sleeve (7) respectively, one side of the bottom end of one first flange (5) is provided with a clamping block (26), one side of the top end of the other first flange (5) is provided with a clamping groove, the clamping block (26) is connected with the clamping groove in a clamping way, and a first sealing ring (6) is arranged between the two first flanges (5).

5. A combined flange valve according to claim 1, characterized in that two second flanges (14) are fixedly connected with the bottom end of the connecting pipe (13) and the top end of the neck pipe (15), a second sealing ring (23) is arranged between the two second flanges (14), and both ends of the valve body (1) are fixedly connected with a third flange (25).

6. The combined flange valve according to claim 1, wherein the bottom end of the buffer tank (16) is fixedly connected with a sealing cover (18) through a connecting ring (17), a third sealing ring (27) is arranged between the sealing cover (18) and the connecting ring (17), spring columns (22) are respectively arranged in the middle of the top end of the sealing cover (18) and the middle of the bottom end of the sealing piston (19), and two ends of the supporting spring (21) are respectively connected with the two spring columns (22) in a clamping mode.