CN214946828U

CN214946828U - Multiple combination sealed stepless locking valve rod structure

Info

Publication number: CN214946828U
Application number: CN202120633405.4U
Authority: CN
Inventors: 林挺
Original assignee: Zhejiang Hengtong Valve Co ltd
Current assignee: Zhejiang Hengtong Valve Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-30
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a multiple combination sealed stepless locking valve rod structure, which comprises a base and a cabin body, a valve rod part is arranged in the cabin body, a fixing ring is arranged at the top of the cabin body, an elastic ring is arranged on the fixing ring, a buckle is arranged on the elastic ring, a square shaft on a base internal mounting disc is inserted in a square groove at the bottom of a bottom column, a clamping strip on one side of the bottom column is clamped in a clamping groove on the inner wall of a sleeve ring, when the valve rod part is lifted and rotated, a ratchet wheel is arranged at the top of a connecting column positioned in a pin disc II and is meshed with a tooth groove formed in a limiting groove, so that the labor-saving rotation of the whole valve rod in the single direction is realized, a connecting plate is arranged at the bottom of the connecting column in the mounting groove, the connecting plate is connected with the bottom of the mounting groove through a spring, thereby the labor is saved when the whole valve rod is pressed down, the locking requirement is realized through the clamping strip being connected with the side wall of an annular open groove, the multistage sealing of the valve rod is realized through the reinforcing sleeve, the fixing ring, the elastic ring and the buckle.

Description

Multiple combination sealed stepless locking valve rod structure

Technical Field

The utility model relates to the technical field of mechanical equipment, specifically be a stepless locking valve rod structure of multiple combination sealed.

Background

With the development of modern science and technology, valves are increasingly commonly used in the aspects of industry, construction, agriculture, national defense, scientific research, people's life and the like, and become indispensable general mechanical products in various fields of human activities; in the field of fluid control, such as hydrogen working conditions in oil and gas production flow switching, pipeline switching, metering, pressure regulating, molecular sieve switching, inlet and outlet of a compressor, an oil refining process, air separation of a synthetic ammonia device and other fields with frequent operation and strict requirements on fluid switch control and closing tightness, the valve is required to generate pressure drop as small as possible in a straight-through state and to provide forced torque sealing without being influenced by pipeline medium pressure;

the Chinese invention patent (publication number CN105927750A) discloses a forced sealing ball valve which is driven by a screw, and the forced sealing between the ball valve and a valve body is realized by a screw jacking mode. However, when the valve ball is applied to a large-diameter high-pressure pipeline, the valve ball needs to bear very high pressure, huge friction force can be generated on the contact surface of the threads, the opening and closing operation torque of the valve is increased, operation difficulty is caused, and the service life of the threads can be seriously shortened. The adoption of the planetary roller screw device is a way for solving the technical problem, and can obviously reduce the torque of the opening and closing operation of the valve. However, the problem that the planetary roller screw device has small operation friction force and does not have the self-locking characteristic of common screw threads is that the valve can move towards the opening direction because the valve cannot be self-locked after being closed. Although some actuators may be used to solve this problem, the overall structural complexity and manufacturing cost of the valve are increased, and the workload of transporting, installing and maintaining the valve is also increased. In addition, for butterfly valves or other angular travel valves needing to realize valve closing and sealing by keeping torque, the original operating handle locks the handle by arranging a fixed fluted disc, the stepless locking function cannot be realized, the unlocking and locking are controlled by a grab handle during operation, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stepless locking valve rod structure of multiple combination sealed 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: a multiple combination sealed stepless locking valve rod structure comprises a base and a cabin body, wherein the cabin body is fixedly arranged on the base,

the valve rod part is penetrated through in the internal activity of cabin, and the valve rod part that is located cabin body top is fixed with solid fixed ring with the junction of the cabin body, and solid fixed ring fixed connection is in the bottom of elastic ring, the fixed buckle that is equipped with on the elastic ring, and the opening part of buckle is fixed and is equipped with parallel knot riser, passes through bolt fixed connection between the parallel knot riser.

Preferably, the cavity is seted up to the base internal fixation, and the fixed mounting disc that is equipped with of bottom in the cavity, and fixed mounting square shaft on the mounting disc, the top activity of square shaft runs through the top of base to the internal portion of cabin, is located the square shaft fixed connection of the internal portion of cabin is in the bottom of the internal portion of cabin's valve rod portion, valve rod portion includes that the valve rod is whole, and fixed mounting thread circle on the holistic outer lane of valve rod, the holistic bottom mounting of valve rod is pegged graft at the inner circle of round pin dish one, and round pin dish below swing joint is in the one end of spliced pole, the other end fixed connection of spliced pole is at round pin dish two tops, and the bottom fixed connection sill pillar of round pin dish two.

Preferably, the fixed square groove of seting up in bottom of foundation pillar, and the activity of square shaft is pegged graft at square inslot, the fixed card strip that is equipped with in one side of foundation pillar is located the movable lantern ring that cup joints on the foundation pillar of the internal portion of cabin, and one side of the lantern ring is fixed and is seted up annular open slot, the fixed draw-in groove of seting up on the inner wall of the lantern ring, card strip activity joint is in the draw-in groove, the outer lane fixed connection of the lantern ring circles in the reinforcing sleeve.

Preferably, the pin disc I is internally and fixedly provided with a limiting groove, the connecting column movably penetrates through the pin disc I and the pin disc II, a ratchet wheel is fixedly arranged on the connecting column positioned in the limiting groove, a tooth socket is fixedly arranged at the joint of the ratchet wheel and the limiting groove, and the outer ring of the ratchet wheel is movably meshed with the tooth socket.

Preferably, the pin disc II is fixedly provided with a mounting groove, a connecting plate is fixedly arranged on a connecting column in the mounting groove, and the connecting plate is movably connected with the bottom of the mounting groove through a spring.

Preferably, the diameter of the first pin disc is the same as that of the second pin disc, the length of the second pin disc is larger than that of the first pin disc, and the diameter of the connecting column is smaller than that of the whole valve rod and the bottom column.

Preferably, the lantern ring and the reinforcing sleeve are located inside the cabin body, and the base and the cabin body are fixedly connected through fastening bolts.

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

1. install the cabin body on the base, and the valve stem portion runs through at the internal activity of cabin, the valve stem portion lies in the junction at cabin body top and is equipped with solid fixed ring, be equipped with the elastic ring on solid fixed ring, and through the buckle joint on the elastic ring, the foundation column of valve stem portion bottom in the cabin body is connected in the lantern ring of internal portion of cabin and reinforcement sleeve, the square shaft on the square inslot interpolation of foundation column bottom connects the base internally mounted dish, because the draw-in groove joint of the card strip on foundation column one side on the lantern ring inner wall, when promoting the rotation to valve stem portion, the card strip is connected with annular open slot lateral wall, thereby realize the requirement of locking, through reinforcement sleeve and solid fixed ring, the multistage of valve rod is realized to elastic ring and buckle.

2. The valve rod part comprises a valve rod whole body, a threaded ring, a first pin disc and a second pin disc which are parallel, the parallel pin discs are movably connected through a connecting column, and the bottom of the second pin disc below is connected with the top end of a bottom column; offer the spacing groove in round pin dish one inside, be located the connecting post top installation ratchet of round pin dish two, and the tooth's socket meshing of seting up of ratchet and spacing inslot portion, thereby realize the laborsaving rotation of the holistic folk prescription of valve rod, set up the mounting groove in round pin dish two simultaneously, be equipped with the connecting plate bottom the inside spliced pole of mounting groove, be connected connecting plate and mounting groove bottom through the spring, thereby it is more laborsaving when pushing down the valve rod whole, also can carry out the subtracting to the part of cabin body and base inside when the whole external atress of valve rod.

Drawings

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

FIG. 2 is a schematic view of the installation of the internal structure of the middle cabin body of the present invention;

fig. 3 is a schematic view of the valve stem portion of the present invention;

figure 4 is the cross-sectional view of the ratchet wheel mounting structure of the utility model

In the figure: 1. a base; 11. mounting a disc; 111. a square shaft; 2. a cabin body; 21. fastening a bolt; 22. a collar; 221. an annular open slot; 222. a card slot; 23. reinforcing the sleeve; 3. a fixing ring; 31. buckling; 311. Buckling a vertical plate; 32. an elastic ring; 4. a valve stem portion; 41. a first pin disc; 411. a limiting groove; 412. a tooth socket; 42. a thread ring; 43. the valve rod is integral; 44. a bottom pillar; 441. a square groove; 442. clamping the strip; 45. A second pin disc; 451. mounting grooves; 452. a spring; 453. a connecting plate; 46. a connecting column, 461 and a ratchet wheel.

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 multiple combination sealing type stepless locking valve rod structure comprises a base 1 and a cabin body 2, the cabin body 2 is fixedly arranged on the base 1,

the valve rod portion 4 runs through in the cabin body 2 internalization, and the valve rod portion 4 that is located the cabin body 2 top is fixed with solid fixed ring 3 with the junction of the cabin body 2, and solid fixed ring 3 fixed connection is in the bottom of elastic ring 32, the fixed buckle 31 that is equipped with on the elastic ring 32, and the opening part of buckle 31 is fixed and is equipped with parallel knot riser 311, and parallel knot passes through bolt fixed connection between the riser 311.

The cavity is seted up to base 1 internal fixation, and the fixed mounting disc 11 that is equipped with of bottom in the cavity, and fixed mounting square shaft 111 on the mounting disc 11, the top activity of square shaft 111 runs through base 1's top to the cabin body 2 in, be located the inside square shaft 111 fixed connection of cabin body 2 bottom at the inside valve rod portion 4 of cabin body 2, valve rod portion 4 includes the whole 43 of valve rod, and fixed mounting thread circle 42 on the whole 43 outer lane of valve rod, the whole 43 bottom mounting of valve rod pegs graft in the inner circle of round pin dish 41, and round pin dish 41 below swing joint is in the one end of spliced pole 46, the other end fixed connection of spliced pole 46 is at round pin dish two 45 tops, and the bottom fixed connection sill pillar 44 of round pin dish two 45, when promoting rotation to valve rod portion 4, the card strip 442 is connected with annular open slot 221 lateral wall, thereby realize the requirement of locking.

The fixed square groove 441 of seting up in bottom column 44's bottom, and square shaft 111 activity is pegged graft in square groove 441, and one side of bottom column 44 is fixed and is equipped with card strip 442, is located the movable lantern ring 22 that cup joints on the inside bottom column 44 of cabin body 2, and one side of lantern ring 22 is fixed and is seted up annular open slot 221, and fixed draw-in groove 222 of seting up on the inner wall of lantern ring 22, card strip 442 activity joint is in draw-in groove 222, and the outer lane fixed connection of the lantern ring 22 is on the inner circle of reinforcing sleeve 23.

The limiting groove 411 is fixedly formed in the first pin disc 41, the connecting column 46 movably penetrates through the first pin disc 41 and the second pin disc 45, the ratchet wheel 461 is fixedly installed on the connecting column 46 located in the limiting groove 411, a tooth groove 412 is fixedly formed at the joint of the ratchet wheel 461 and the limiting groove 411, the outer ring of the ratchet wheel 461 is movably meshed with the tooth groove 412, and the ratchet wheel 461 is meshed with the tooth groove 412 formed in the limiting groove 411, so that unidirectional labor-saving rotation of the whole valve rod 43 is achieved.

The mounting groove 451 is fixedly formed in the second pin disc 45, the connecting plate 453 is fixedly arranged on the connecting column 46 in the mounting groove 451, the connecting plate 453 is movably connected with the bottom of the mounting groove 451 through the spring 452, the connecting plate 453 is connected with the bottom of the mounting groove 451 through the spring 452, therefore, labor is saved when the whole valve rod 43 is pressed down, and the force can be reduced for the cabin 5 and the components in the base 1 when the whole valve rod 43 is stressed from the outside.

The diameter of the first pin disc 41 is the same as that of the second pin disc 45, the length of the second pin disc 45 is larger than that of the first pin disc 41, and the diameter of the connecting column 46 is smaller than that of the valve rod whole body 43 and the bottom column 44.

The lantern ring 22 and the reinforcing sleeve 23 are located inside the cabin body 2, the base 1 and the cabin body 2 are fixedly connected through the fastening bolt 21, and multi-stage sealing of the valve rod is achieved through the reinforcing sleeve 23, the fixing ring 3, the elastic ring 32 and the buckle 31.

The working principle is as follows: the base 1 is provided with a cabin body 2, the cabin body 2 is movably provided with a valve rod part 4 in the through hole, the valve rod part 4 is provided with a fixing ring 3 at the joint of the top of the cabin body 2, the fixing ring 3 is provided with an elastic ring 32 which is clamped on the elastic ring 32 through a buckle 31, a bottom column 44 at the bottom of the valve rod part 4 in the cabin body 2 is connected with a lantern ring 22 and a reinforcing sleeve 23 in the cabin body 2, a square groove 441 at the bottom of the bottom column 44 is inserted and connected with a square shaft 111 on an inner mounting disc 11 in the base 1, a clamping strip 442 on one side of the bottom column 44 is clamped on a clamping groove 222 on the inner wall of the lantern ring 22, when the valve rod part 4 is lifted and rotated, a ratchet wheel 461 is arranged at the top of a connecting column 46 in a pin disc two 45 and is meshed with a tooth groove 412 arranged in a limiting groove 411, so that the unidirectional labor-saving rotation of the whole valve rod 43 is realized, the bottom of the connecting column 46 in the mounting groove 451 is provided with a connecting plate 453, the connecting plate 453 is connected with the bottom of the mounting groove 451 through the spring 452, so that the whole valve rod 43 is pressed down in a labor-saving manner, the clamping strip 442 is connected with the side wall of the annular opening groove 221, the locking requirement is met, and the multi-stage sealing of the valve rod is achieved through the reinforcing sleeve 23, the fixing ring 3, the elastic ring 32 and the buckle 31.

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 stepless locking valve rod structure of multiple combination sealed, includes base (1) and cabin body (2), fixed mounting cabin body (2), its characterized in that on base (1):

the valve rod part (4) is penetrated through in the activity of the cabin body (2), and the valve rod part (4) that is located cabin body (2) top is fixed with solid fixed ring (3) with the junction of the cabin body (2), and solid fixed ring (3) fixed connection is in the bottom of elastic ring (32), fixed buckle (31) that is equipped with on elastic ring (32), and the opening part of buckle (31) is fixed and is equipped with parallel knot riser (311), passes through bolt fixed connection between parallel knot riser (311).

2. The multiple combination sealed type stepless locking valve rod structure according to claim 1, wherein: a cavity is fixedly arranged in the base (1), an installation disc (11) is fixedly arranged at the bottom in the cavity, a square shaft (111) is fixedly arranged on the mounting disc (11), the top of the square shaft (111) movably penetrates through the top of the base (1) to the cabin body (2), the square shaft (111) positioned in the cabin body (2) is fixedly connected with the bottom end of a valve rod part (4) in the cabin body (2), the valve rod part (4) comprises a whole valve rod (43), and the outer ring of the valve rod whole body (43) is fixedly provided with a thread ring (42), the bottom end of the valve rod whole body (43) is fixedly inserted on the inner ring of the pin disc I (41), and the lower part of the first pin disc (41) is movably connected with one end of a connecting column (46), the other end of the connecting column (46) is fixedly connected with the top of a second pin disc (45), and the bottom of the second pin disc (45) is fixedly connected with a bottom column (44).

3. The multiple combination sealed type stepless locking valve rod structure according to claim 2, wherein: the fixed square groove (441) of seting up in bottom of foundation column (44), and square shaft (111) activity is pegged graft in square groove (441), one side of foundation column (44) is fixed and is equipped with card strip (442), is located the movable lantern ring (22) that cup joints on foundation column (44) of the internal portion of cabin (2), and one side of lantern ring (22) is fixed sets up annular open slot (221), fixed draw-in groove (222) of seting up on the inner wall of lantern ring (22), card strip (442) activity joint is in draw-in groove (222), the outer lane fixed connection of lantern ring (22) circles in the interior of reinforcing sleeve (23).

4. The multiple combination sealed type stepless locking valve rod structure according to claim 2, wherein: the pin disc I (41) is internally and fixedly provided with a limiting groove (411), the connecting column (46) movably penetrates through the pin disc I (41) and the pin disc II (45), a ratchet wheel (461) is fixedly installed on the connecting column (46) in the limiting groove (411), a tooth groove (412) is fixedly formed in the joint of the ratchet wheel (461) and the limiting groove (411), and the outer ring of the ratchet wheel (461) is movably meshed with the tooth groove (412).

5. The multiple combination sealed type stepless locking valve rod structure according to claim 2, wherein: the pin plate II (45) is fixedly provided with an installation groove (451) inside, a connecting plate (453) is fixedly arranged on a connecting column (46) inside the installation groove (451), and the connecting plate (453) is movably connected with the bottom of the installation groove (451) through a spring (452).

6. The multiple combination sealed type stepless locking valve rod structure according to claim 2, wherein: the diameter of the first pin disc (41) is the same as that of the second pin disc (45), the length of the second pin disc (45) is larger than that of the first pin disc (41), and the diameter of the connecting column (46) is smaller than that of the whole valve rod (43) and the bottom column (44).

7. The multiple combination sealed type stepless locking valve rod structure according to claim 3, wherein: the lantern ring (22) and the reinforcing sleeve (23) are located inside the cabin body (2), and the base (1) and the cabin body (2) are fixedly connected through fastening bolts (21).