CN219388761U - Valve rod limit structure and valve - Google Patents
Valve rod limit structure and valve Download PDFInfo
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- CN219388761U CN219388761U CN202321621117.2U CN202321621117U CN219388761U CN 219388761 U CN219388761 U CN 219388761U CN 202321621117 U CN202321621117 U CN 202321621117U CN 219388761 U CN219388761 U CN 219388761U
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- 230000000670 limiting effect Effects 0.000 claims abstract description 233
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of valves, in particular to a valve rod limiting structure and a valve, wherein the valve rod limiting structure comprises a connecting disc and a limiting piece, the connecting disc is arranged on a valve body, a valve rod is rotatably arranged on the connecting disc, the limiting piece is arranged on the valve rod, and the limiting piece comprises a first limiting piece and a second limiting piece; the connecting disc is provided with a limiting groove, the limiting groove comprises a first limiting groove and a second limiting groove, and the limiting piece is matched with the limiting groove; when the valve rod rotates, when the first limiting piece rotates to be limited by the first limiting groove, the second limiting piece is limited by the second limiting groove, double limiting of the valve rod is achieved, and after one limiting piece fails, the other limiting piece still can play a limiting role; meanwhile, acting force generated by the limiting grooves on the limiting pieces is dispersed, so that acting force borne by a single limiting piece is reduced, and the service life of the limiting piece is prolonged; comprehensively improving the service life of the valve.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a valve rod limiting structure and a valve.
Background
Valve control typically requires the stem and stop to cooperate.
There is a valve rod limit structure in the market at present, for example, chinese patent with application number CN202220535853.5, this valve rod limit structure, including connection pad, valve rod and locating part, the connection pad is fixed in on the valve, and the valve rod passes the connection pad, and the valve rod is connected with the electric actuator key that is used for driving valve rod pivoted, and electric actuator is fixed in on the connection pad, and the locating part is established on the valve rod, has offered on the connection pad to be used for with locating part complex spacing recess, and the bottom of locating part is located spacing recess, and the both ends of spacing recess can form spacingly to the locating part.
However, although this valve rod limit structure can play the limiting action, in the in-service use process, the inventor finds that this valve rod limit structure still has the defect, specifically lies in:
the limiting part is only one, in the frequent use process of the valve, the single limiting part is relatively large in stress and easy to damage, and the damaged limiting part cannot effectively limit the valve, so that the valve is not correct in switch position, and the valve is not ideal in switch effect.
Therefore, based on the above-mentioned shortcomings, there is a need to design a valve rod limiting structure and a valve for reducing the stress of the limiting member, improving the service life of the limiting member and improving the service life of the valve.
Disclosure of Invention
The utility model aims at: to the single defect of locating part that present valve rod limit structure exists, provide a valve rod limit structure and valve for reduce the atress of locating part, improve the life of valve.
In order to achieve the above object, the present utility model provides the following technical solutions:
the valve rod limiting structure comprises a connecting disc and a limiting piece, wherein the connecting disc is arranged on a valve body, a through hole for a valve rod to pass through is further formed in the connecting disc, the valve rod is rotatably arranged in the through hole, the limiting piece is arranged on the valve rod, and the limiting piece comprises a first limiting piece and a second limiting piece;
the connecting disc is provided with a limiting groove, the limiting groove comprises a first limiting groove and a second limiting groove, the first limiting piece is matched with the first limiting groove, and at least one part of the first limiting piece is positioned in the first limiting groove; the second limiting piece is matched with the second limiting groove, and at least one part of the second limiting piece is positioned in the second limiting groove;
in the circumferential direction around the valve rod, the size of the limit groove is matched with the rotation stroke of the valve rod;
when the valve rod rotates, the first limiting piece rotates to be limited by the first limiting groove, and the second limiting piece is limited by the second limiting groove.
As the preferential technical scheme of this application, first locating part with the second locating part symmetry sets up on the valve rod.
As the preferential technical scheme of this application, the locating part with the valve rod is detachable connection.
As a preferential technical scheme of the application, a first mounting groove and a second mounting groove are formed in the valve rod, the first limiting piece is matched with the first mounting groove, and the first limiting piece is fixed in the first mounting groove through a bolt; the second limiting piece is matched with the second mounting groove, and the second limiting piece is fixed in the second mounting groove through a bolt.
As a preferential technical scheme of the application, the limiting piece adopts a flat key.
As the preferential technical scheme of this application, spacing recess is convex, around in the valve rod hoop direction, be convex spacing recess's lateral wall with there is the clearance between the locating part.
As a preferred technical scheme of the present application, a first extending groove is formed on the connecting disc, the first extending groove is communicated with the first limiting groove, when the first limiting piece is detached from the valve rod, the first limiting piece can be taken out from the position of the first extending groove, and the taking-out direction is perpendicular to the bottom surface of the first mounting groove;
the connecting disc is provided with a second extending groove, the second extending groove is communicated with the second limiting groove, and when the second limiting piece is detached from the valve rod, the second limiting piece can be taken out from the position of the second extending groove, and the taking-out direction is perpendicular to the bottom surface of the second mounting groove.
As a preferred technical scheme of the application, the number of the first extending grooves is two, and the two first extending grooves are respectively positioned at two ends of the first limiting groove; the number of the second extending grooves is two, and the two second extending grooves are respectively positioned at two ends of the second limiting groove.
As a preferential technical scheme of the application, the connecting disc is detachably connected with the valve body.
As the preferential technical scheme of this application, be provided with the baffle in the spacing recess, the baffle is elastic rubber, the baffle with the valve rod contact the valve rod gyration in-process, the baffle acts on the both sides face of locating part.
In order to achieve the above object, the present utility model further provides the following technical solutions:
a valve adopts the valve rod limiting structure.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the scheme of the application, the connecting disc is arranged on the valve body, the valve rod stretches into the valve body through the through hole on the connecting disc, the valve rod can rotate in the through hole on the connecting disc, the valve rod is provided with the limiting piece, and the corresponding connecting disc is provided with the limiting groove, so that the valve rod can only rotate in the area limited by the limiting groove, and limiting of the valve rod is realized; further, the locating part includes first locating part and second locating part, corresponds spacing recess and includes first spacing recess and second spacing recess, and when the valve rod rotates, when first locating part rotates to by first spacing recess spacing, second locating part is spacing by second spacing recess, so, realizes the double spacing to the valve rod, and double spacing beneficial effect is: when the first limiting piece fails, the second limiting piece still can play a limiting role, or when the second limiting piece fails, the first limiting piece still can play a limiting role, so that the service life of the limiting piece is prolonged; meanwhile, in the process of rotating the valve rod, acting force of the limiting groove on the limiting piece is dispersed, so that acting force of a single limiting piece is reduced, and the service life of the limiting piece is prolonged; the service life of the valve is comprehensively prolonged;
2. the locating part is for dismantling the connection with the valve rod, can dismantle the connection specifically and be: the valve rod is provided with the first mounting groove and the second mounting groove which are used for adapting the limiting piece, the limiting piece is fixed on the valve rod through the bolt, so that when the invalid limiting piece is replaced, the bolt is only required to be unscrewed, the invalid limiting piece is taken down, a new limiting piece is replaced, the bolt is screwed down, the new limiting piece is fixed on the valve rod, the operation is convenient and simple, the replacement of the limiting piece is facilitated, and the flexibility of valve maintenance is improved;
3. the valve rod rotates in the through hole of the connecting disc, the rotating path of the valve rod is a section of arc, the rotating path of the limiting piece arranged on the valve rod is also a section of arc, the limiting groove is arranged to be a section of arc, on one hand, the rotating path of the limiting block is avoided, the side wall of the limiting groove is prevented from touching, the abrasion of the limiting block is reduced, the service life of the limiting block is prolonged, on the other hand, the connecting disc does not need to remove excessive materials, only one end of the arc groove is required to be arranged for avoiding the rotating path of the limiting block, the strength of the connecting disc is improved, the long-time use of the connecting disc is facilitated, the service life of the connecting disc is prolonged, and the service life of the valve is further prolonged;
4. the arrangement of the first extending groove and the second extending groove enables the first limiting piece to be taken out of the first extending groove or the second limiting piece to be taken out of the second extending groove without taking the valve rod off the connecting disc after the limiting piece fails, so that replacement of the limiting piece is facilitated, and the flexibility of valve maintenance is improved; meanwhile, the direction of the first limiting piece is perpendicular to the bottom surface of the first mounting groove, the direction of the second limiting piece is perpendicular to the bottom surface of the second mounting groove, and the arrangement reduces the abrasion of the first limiting piece to the side surface of the first mounting groove, reduces the abrasion of the second limiting piece to the side surface of the second mounting groove, prolongs the service lives of the first mounting groove and the second mounting groove, prolongs the service life of the valve rod, and further prolongs the service life of the valve;
5. when the limiting piece is positioned at one end of the limiting groove, the corresponding valve is in a closed state, when the limiting piece is positioned at the other end of the limiting groove, the corresponding valve is in an open state, the number of the first extending grooves is two, the two extending grooves are respectively positioned at the two ends of the first limiting groove, the number of the second extending grooves are two, and the two extending grooves are respectively positioned at the two ends of the second limiting groove;
6. the valve rod rotates for a long time, the two side surfaces of the limiting piece collide with the two ends of the limiting groove back and forth for a long time, so that the generation of trivia is avoided, the generated trivia possibly enters into a gap between the valve rod and the through hole on the connecting disc, the rotation of the valve rod is not facilitated, the arrangement of the baffle is not beneficial, the generated trivia can be concentrated into the first extending groove and the second extending groove, the trivia can be cleaned conveniently in time, the trivia is prevented from entering into the gap between the valve rod and the through hole on the connecting disc, the operation of the valve is facilitated, and the service life of the valve is prolonged.
Drawings
FIG. 1 is a schematic illustration of one embodiment of a valve stem spacing structure of the present application;
FIG. 2 is a schematic illustration of another view of one embodiment of a valve stem retention structure of the present application;
FIG. 3 is a schematic illustration of a land configuration of one embodiment of a valve stem retention feature of the present application;
FIG. 4 is a schematic view of a split-type structure of a valve stem and a stopper according to one embodiment of a valve stem stop structure of the present application;
the figures indicate: 1-connecting disc, 2-limit groove, 3-locating part, 4-valve rod, 5-valve body, 6-baffle, 21-first limit groove, 22-second limit groove, 211-first extension groove, 221-second extension groove, 31-first locating part, 32-second locating part, 41-first installation groove, 42-second installation groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.
Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some 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.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Embodiment one: as can be seen in figures 1-4,
the valve rod limiting structure comprises a connecting disc 1 and a limiting piece 3, wherein the connecting disc 1 is arranged on a valve body 5, a through hole for a valve rod 4 to pass through is further formed in the connecting disc 1, the valve rod 4 is rotatably arranged in the through hole, the limiting piece 3 is arranged on the valve rod 4, and the limiting piece 3 comprises a first limiting piece 31 and a second limiting piece 32;
the connecting disc 1 is provided with a limiting groove 2, the limiting groove 2 comprises a first limiting groove 21 and a second limiting groove 22, the first limiting piece 31 is matched with the first limiting groove 21, and at least a part of the first limiting piece 31 is positioned in the first limiting groove 21; the second limiting member 32 is adapted to the second limiting groove 22, and at least a portion of the second limiting member 32 is located in the second limiting groove 22;
in the circumferential direction around the valve rod 4, the size of the limit groove 2 is adapted to the rotational travel of the valve rod 4;
when the valve rod 4 rotates, the first limiting piece 31 rotates to be limited by the first limiting groove 21, and the second limiting piece 32 is limited by the second limiting groove 22.
The connecting disc 1 is arranged on the valve body 5, the valve rod 4 extends into the valve body 5 through a through hole on the connecting disc 1, the valve rod 4 can rotate in the through hole on the connecting disc 1, the valve rod 4 is provided with the limiting piece 3, and the corresponding connecting disc 1 is provided with the limiting groove 2, so that the valve rod 4 can only rotate in the area limited by the limiting groove 2, and the limiting of the valve rod 4 is realized; further, the spacing piece 3 includes first spacing piece 31 and second spacing piece 32, corresponds spacing recess 2 and includes first spacing recess 21 and second spacing recess 22, and when valve rod 4 rotates, when first spacing piece 31 rotates to by first spacing recess 21 spacing, second spacing piece 32 is spacing by second spacing recess 22, so, realizes the double spacing to valve rod 4, and double spacing beneficial effect is: when the first limiting piece 31 fails, the second limiting piece 32 can still play a limiting role, or when the second limiting piece 32 fails, the first limiting piece 31 can still play a limiting role, so that the service life of the limiting piece 3 is prolonged; meanwhile, in the process of rotating the valve rod 4, acting force of the limiting groove 2 on the limiting piece 3 is dispersed, so that acting force of a single limiting piece 3 is reduced, and the service life of the limiting piece 3 is prolonged; comprehensively improving the service life of the valve.
As a preferred embodiment, in addition to the above-described embodiments, the first stopper 31 and the second stopper 32 are symmetrically disposed on the valve stem 4.
The first locating part 31 and the second locating part 32 symmetry set up on valve rod 4, so, at the in-process of valve rod 4 gyration, the effort that spacing recess 2 produced spacing piece 3 is evenly dispersed, and first locating part 31 and second locating part 32 receive equal effort, and first locating part 31 and second locating part 32 are all difficult to impaired, and the life of first locating part 31 and second locating part 32 all increases, has further improved the life of valve.
In a preferred embodiment, in addition to the above-described embodiment, the stopper 3 is detachably connected to the valve stem 4.
The locating part 3 is detachably connected with the valve rod 4, so that the setting is that after the locating part 3 fails, only the locating part 3 which fails is required to be taken down from the valve rod 4, a new locating part 3 is replaced, the new locating part 3 can play a limiting role, the valve can be used continuously, and the service life of the valve is prolonged.
As a preferred embodiment, on the basis of the above mode, further, a first mounting groove 41 and a second mounting groove 42 are provided on the valve rod 4, the first limiting member 31 is adapted to the first mounting groove 41, and the first limiting member 31 is fixed in the first mounting groove 41 by a bolt; the second limiting member 32 is adapted to the second mounting groove 42, and the second limiting member 32 is fixed in the second mounting groove 42 by a bolt.
The limiting piece 3 is detachably connected with the valve rod 4, and the detachable connection is specifically as follows: offer first mounting groove 41 and second mounting groove 42 on valve rod 4 for adaptation locating part 3, fix locating part 3 on valve rod 4 through the bolt, so, when changing inefficacy locating part 3, only need unscrew the bolt, take off inefficacy locating part 3, change new locating part 3, screw up the bolt, new locating part 3 is fixed on valve rod 4, convenient operation is simple, is favorable to the change of locating part 3, has improved the flexibility to the valve maintenance.
Embodiment two: as can be seen in figures 2-4,
on the basis of the first technical scheme of the embodiment, further, the limiting piece 3 adopts a flat key.
The flat key is used as a common part, and is sold in a hardware store, so that the flat key is easy to obtain, simple in structure and convenient for secondary processing, and required parts can be obtained by cutting the length and drilling the through holes, so that the replacement of the limiting part 3 is facilitated, and the flexibility of valve maintenance is improved.
As a preferred embodiment, in addition to the above-mentioned embodiment, the limit groove 2 has a circular arc shape, and a gap exists between a side wall of the circular arc-shaped limit groove 2 and the limit member 3 in a circumferential direction around the valve stem 4.
The valve rod 4 rotates in the through-hole of connection pad 1, the rotation route of valve rod 4 is one section circular arc, the rotation route of locating part 3 that sets up on valve rod 4 also is one section circular arc, set up spacing recess 2 into arc, avoid the rotation route of stopper on the one hand, prevent the lateral wall touching of stopper and spacing recess 2, reduce the wearing and tearing of stopper, the life of stopper has been increased, on the other hand connection pad 1 need not remove too much material, only need set up one end circular arc recess and be used for avoiding the rotation route of stopper, the intensity of connection pad 1 has been improved, be favorable to the long-time use of connection pad 1, the life-span of connection pad 1 has been increased, the life-span of valve has further been increased.
As a preferred embodiment, in addition to the above-mentioned aspect, the connecting disc 1 is further provided with a first extending groove 211, the first extending groove 211 is communicated with the first limiting groove 21, and when the first limiting member 31 is detached from the valve rod 4, the first limiting member 31 can be taken out from the position of the first extending groove 211, and the taking-out direction is perpendicular to the bottom surface of the first mounting groove 41;
the connecting disc 1 is provided with a second extending groove 221, the second extending groove 221 is communicated with the second limiting groove 22, and when the second limiting piece 32 is detached from the valve rod 4, the second limiting piece 32 can be taken out from the position of the second extending groove 221, and the taking-out direction is perpendicular to the bottom surface of the second mounting groove 42.
The first extending groove 211 and the second extending groove 221 are arranged, so that after the limiting piece 3 fails, the first limiting piece 31 can be taken out of the first extending groove 211 or the second limiting piece 32 can be taken out of the second extending groove 221 without taking the valve rod 4 off the connecting disc 1, thereby being beneficial to replacement of the limiting piece 3 and improving the flexibility of valve maintenance; meanwhile, the direction of taking out the first limiting piece 31 is perpendicular to the bottom surface of the first mounting groove 41, the direction of taking out the second limiting piece 32 is perpendicular to the bottom surface of the second mounting groove 42, and the arrangement reduces the abrasion of the first limiting piece 31 to the side surface of the first mounting groove 41, reduces the abrasion of the second limiting piece 32 to the side surface of the second mounting groove 42, prolongs the service lives of the first mounting groove 41 and the second mounting groove 42, prolongs the service life of the valve rod 4, and further prolongs the service life of the valve.
As a preferred embodiment, on the basis of the above manner, the number of the first extending grooves 211 is two, and the two first extending grooves 211 are respectively located at two ends of the first limiting groove 21; the number of the second extending grooves 221 is two, and the two second extending grooves 221 are respectively located at two ends of the second limiting groove 22.
Normally, when the limiting piece 3 is located at one end of the limiting groove 2, the corresponding valve is in a closed state, when the limiting piece 3 is located at the other end of the limiting groove 2, the corresponding valve is in an open state, the first extending grooves 211 are arranged to be two, and are respectively located at two ends of the first limiting groove 21, the second extending grooves 221 are arranged to be two, and are respectively located at two ends of the second limiting groove 22, and the limiting piece is arranged in such a way that no matter the valve is in a closed state or an open state, the limiting piece can be replaced, normal use of the valve is not affected, and flexibility of valve maintenance is improved.
Embodiment III: as can be seen in figures 1-2,
on the basis of the first technical scheme of the embodiment, further, the connecting disc 1 is detachably connected with the valve body 5.
The connection pad 1 is detachably connected with the valve body 5, so that the valve is arranged, under the condition that the limiting groove 2 is damaged, the limiting piece 3 is only required to be detached, the connection pad 1 is detached again for maintenance, the maintained connection pad 1 is assembled, the limiting piece 3 is assembled, the maintained connection pad 1 can play a limiting role again, the valve can be used continuously, and the service life of the valve is prolonged.
As a preferred embodiment, in addition to the above-mentioned embodiment, a baffle 6 is further disposed in the limit groove 2, the baffle 6 is made of elastic rubber, the baffle 6 contacts the valve rod 4, and the baffle 6 acts on both side surfaces of the limit member 3 during the rotation of the valve rod 4.
The valve rod 4 rotates for a long time, the two side surfaces of the limiting piece 3 collide with the two ends of the limiting groove 2 back and forth for a long time, so that the generation of trivia is avoided, the generated trivia possibly enters into a gap between the valve rod 4 and the through hole on the connecting disc 1, the rotation of the valve rod 4 is not facilitated, the baffle 6 is arranged, the generated trivia can be concentrated into the first extending groove 211 and the second extending groove 221, the trivia can be conveniently cleaned in time, the trivia is prevented from entering into the gap between the valve rod 4 and the through hole on the connecting disc 1, the operation of the valve is facilitated, and the service life of the valve is prolonged.
Embodiment four: as can be seen in figures 1-4,
the embodiment also provides a valve, the valve adopts the valve rod limit structure described in the previous embodiment, so that the service life of the valve rod is prolonged, and the service life of the valve is further prolonged.
The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and although the present utility model has been described in detail in the present specification with reference to the above embodiments, the present utility model is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present utility model; all technical solutions and modifications thereof that do not depart from the spirit and scope of the utility model are intended to be included in the scope of the appended claims.
Claims (10)
1. A valve rod limit structure which characterized in that: the valve comprises a connecting disc and a limiting piece, wherein the connecting disc is arranged on a valve body, a through hole for a valve rod to pass through is further formed in the connecting disc, the valve rod is rotatably arranged in the through hole, the limiting piece is arranged on the valve rod, and the limiting piece comprises a first limiting piece and a second limiting piece;
the connecting disc is provided with a limiting groove, the limiting groove comprises a first limiting groove and a second limiting groove, the first limiting piece is matched with the first limiting groove, and at least one part of the first limiting piece is positioned in the first limiting groove; the second limiting piece is matched with the second limiting groove, and at least one part of the second limiting piece is positioned in the second limiting groove;
in the circumferential direction around the valve rod, the size of the limit groove is matched with the rotation stroke of the valve rod;
when the valve rod rotates, the first limiting piece rotates to be limited by the first limiting groove, and the second limiting piece is limited by the second limiting groove.
2. A valve stem spacing structure as defined in claim 1, wherein: the first limiting piece and the second limiting piece are symmetrically arranged on the valve rod.
3. A valve stem spacing structure as defined in claim 1, wherein: the limiting piece is detachably connected with the valve rod.
4. A valve stem spacing structure as defined in claim 3, wherein: the valve rod is provided with a first mounting groove and a second mounting groove, the first limiting piece is matched with the first mounting groove, and the first limiting piece is fixed in the first mounting groove through a bolt; the second limiting piece is matched with the second mounting groove, and the second limiting piece is fixed in the second mounting groove through a bolt.
5. A valve stem spacing structure as defined in claim 1, wherein: the limiting piece adopts a flat key.
6. A valve stem spacing structure as defined in claim 1, wherein: the limiting groove is arc-shaped, and a gap exists between the side wall of the limiting groove which is arc-shaped and the limiting piece in the circumferential direction around the valve rod.
7. A valve stem spacing structure as defined in claim 4, wherein: the connecting disc is provided with a first extending groove, the first extending groove is communicated with the first limiting groove, and when the first limiting piece is detached from the valve rod, the first limiting piece can be taken out from the position of the first extending groove, and the taking-out direction is perpendicular to the bottom surface of the first mounting groove;
the connecting disc is provided with a second extending groove, the second extending groove is communicated with the second limiting groove, and when the second limiting piece is detached from the valve rod, the second limiting piece can be taken out from the position of the second extending groove, and the taking-out direction is perpendicular to the bottom surface of the second mounting groove.
8. A valve stem spacing structure as defined in claim 7, wherein: the number of the first extending grooves is two, and the two first extending grooves are respectively positioned at two ends of the first limiting groove; the number of the second extending grooves is two, and the two second extending grooves are respectively positioned at two ends of the second limiting groove.
9. A valve stem spacing structure as defined in claim 1, wherein: the connecting disc is detachably connected with the valve body, a baffle is arranged in the limiting groove, the baffle is made of elastic rubber and is in contact with the valve rod, and the baffle acts on two side surfaces of the limiting piece in the rotation process of the valve rod.
10. A valve, characterized in that: a valve stem spacing structure comprising any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621117.2U CN219388761U (en) | 2023-06-26 | 2023-06-26 | Valve rod limit structure and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621117.2U CN219388761U (en) | 2023-06-26 | 2023-06-26 | Valve rod limit structure and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388761U true CN219388761U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321621117.2U Active CN219388761U (en) | 2023-06-26 | 2023-06-26 | Valve rod limit structure and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219388761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906614A (en) * | 2023-09-13 | 2023-10-20 | 成都成高阀门股份有限公司 | Anti-rotation device for valve seat of low-temperature ball valve and use method of anti-rotation device |
-
2023
- 2023-06-26 CN CN202321621117.2U patent/CN219388761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906614A (en) * | 2023-09-13 | 2023-10-20 | 成都成高阀门股份有限公司 | Anti-rotation device for valve seat of low-temperature ball valve and use method of anti-rotation device |
| CN116906614B (en) * | 2023-09-13 | 2023-11-21 | 成都成高阀门股份有限公司 | Anti-rotation device for valve seat of low-temperature ball valve and use method of anti-rotation device |
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Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330 Patentee after: Chengdu Chenggao Valve Co.,Ltd. Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee after: Chengfeng FLOW-TECH Group Address before: 611330 No. 67, Gongye Avenue, Dayi County, Chengdu, Sichuan Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee before: Chengfeng FLOW-TECH Group |
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