CN210135311U - Magnetic locking structure of valve - Google Patents
Magnetic locking structure of valve Download PDFInfo
- Publication number
- CN210135311U CN210135311U CN201920985688.1U CN201920985688U CN210135311U CN 210135311 U CN210135311 U CN 210135311U CN 201920985688 U CN201920985688 U CN 201920985688U CN 210135311 U CN210135311 U CN 210135311U
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- China
- Prior art keywords
- permanent magnet
- valve
- valve body
- vertical displacement
- pin rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 37
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000005484 gravity Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
A magnetic locking structure of a valve comprises a valve body of the valve, a spherical valve core arranged in the valve body and a rotating shaft fixedly connected with the spherical valve core, a pin rod is arranged in the valve body in a sliding way, a first permanent magnet is arranged at one end of the pin rod away from the rotating shaft, the first vertical displacement block is provided with a second permanent magnet and a third permanent magnet which correspond to the first permanent magnet, the top end of the first vertical displacement block is provided with a fourth permanent magnet, the two ends of the connecting wire are respectively connected with a fifth permanent magnet and a second vertical displacement block, the bottom of the unlocking hole is close to the fourth permanent magnet, the fifth permanent magnet is close to the inner side wall of the unlocking hole, the unlocking hole is internally provided with an unlocking block, the utility model discloses simple structure, the spacing pivot of pin rod, the spacing pin rod of second displacement block adopt twice magnetism unblock mode, have improved the performance that the valve prevented the switching.
Description
Technical Field
The utility model relates to a valve field, especially a magnetism locking structure of valve.
Background
Although the structures of the valves with the locks are different, mechanical lock bodies are mostly used and are unlocked by matched keys, the method is safe and reliable, when the number of the valves is increased, the keys cannot be used universally and are not beneficial to centralized management, and the existing magnetic valves are complex in structure and poor in opening and closing prevention performance.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a magnetism locking structure of valve.
The utility model adopts the technical proposal that:
a magnetic locking structure of a valve comprises a valve body of the valve, a spherical valve core arranged in the valve body and a rotating shaft fixedly connected with the spherical valve core, wherein the rotating shaft is connected with the valve body through a bearing, a sealing sleeve is arranged between the spherical valve core and the valve body, a locking structure is arranged in the valve body, a pin rod is arranged in the valve body in a sliding manner, a limiting groove which is in limiting fit with the pin rod when the valve is closed is arranged on the outer surface of the rotating shaft, a first permanent magnet is arranged at one end, away from the rotating shaft, of the pin rod, a first vertical displacement block is further arranged in the valve body, the bottom end of the first vertical displacement block is connected with a spring, a second permanent magnet and a third permanent magnet which correspond to the first permanent magnet are arranged on the first vertical displacement block, a fourth permanent magnet is arranged at the top end of the first vertical displacement block, a rotating wheel is further arranged, the two ends of the connecting wire are respectively connected with a fifth permanent magnet and a second vertical displacement block, an annular groove is formed in the outer surface of the pin rod, one end, far away from the connecting wire, of the second displacement block is in limit fit with the annular groove when the valve is closed, an unlocking hole communicated with the outside is further formed in the valve body, the bottom of the unlocking hole is close to the fourth permanent magnet, the fifth permanent magnet is close to the inner side wall of the unlocking hole, an unlocking block is arranged in the unlocking hole, and a sixth permanent magnet corresponding to the fourth permanent magnet and a seventh permanent magnet corresponding to the fifth permanent magnet are arranged on the unlocking block;
the second permanent magnet is located below the third permanent magnet, corresponding magnetic poles of the second permanent magnet and the first permanent magnet are the same, corresponding magnetic poles of the third permanent magnet and the first permanent magnet are different, corresponding magnetic poles of the fourth permanent magnet and the sixth permanent magnet are the same, and corresponding magnetic poles of the fifth permanent magnet and the seventh permanent magnet are different.
In the technical scheme, the pin rod plays a role in limiting rotation of the rotating shaft, the second vertical displacement block plays a role in limiting sliding of the pin rod, the first permanent magnet and the second permanent magnet have the same magnetic pole and generate repulsion, because the displacement track of the first vertical displacement block is only limited to be vertical, the pin rod is forced to transversely pop out to the limiting groove of the rotating shaft, after the unlocking block is placed in the unlocking block, the fourth permanent magnet and the sixth permanent magnet generate repulsion, the first displacement block is vertically extruded downwards, the third permanent magnet reaches the position of the second permanent magnet and corresponds to the first permanent magnet, the third permanent magnet sucks the pin rod from the limiting groove and releases the limitation of the pin rod on the rotating shaft, when the pin rod is limiting the rotating shaft, in order to avoid the pin rod from sliding, the second vertical displacement block descends to an annular groove on a pin hole due to self gravity and performs sliding limitation on the pin rod, the suction force between the fifth permanent magnet and the seventh permanent magnet lifts the second vertical displacement block upwards, the limiting effect of the second vertical displacement block on the pin rod is relieved, and therefore only the limiting effect on the pin rod is relieved, and the limiting effect on the rotating shaft can be relieved.
Preferably, the repulsive force between the fourth permanent magnet and the sixth permanent magnet is greater than the elastic force of the spring, and the attractive force between the fifth permanent magnet and the seventh permanent magnet is greater than the gravity of the second vertical displacement block.
Among the above-mentioned technical scheme, the spring can compress, and the vertical displacement piece of second can upwards promote.
The utility model has the advantages that:
1) the utility model makes full use of the principle that like poles of the magnets repel each other and opposite poles attract each other to carry out two-stage limiting on the rotating shaft, and because of the specific position setting of the magnets, the valve can not be opened by a general unlocking block, thereby having a certain opening prevention function;
2) the utility model discloses a permanent magnet, magnetism effect is good.
Drawings
Fig. 1 is a schematic structural view of the valve of the present invention when closed;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of the valve of the present invention when opened;
reference numerals: 10-a valve body; 11-a pin rod; 12-a first vertical displacement block; 13-a spring; 14-a rotating wheel; 15-connecting lines; 16-a second vertical displacement block; 17-an annular groove; 18-unlocking the hole; 19-unlocking the block; 20-a rotating shaft; 21-a limiting groove; 31-a first permanent magnet; 32-a second permanent magnet; 33-a third permanent magnet; 34-a fourth permanent magnet; 35-a fifth permanent magnet; 36-a sixth permanent magnet; 37-seventh permanent magnet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example (b):
referring to fig. 1-3, a magnetic locking structure of a valve includes a valve body 10 of the valve, a spherical valve core disposed in the valve body 10, and a rotating shaft 20 fixedly connected to the spherical valve core, the rotating shaft 20 is connected to the valve body 10 through a bearing, a sealing sleeve is disposed between the spherical valve core and the valve body 10, a locking structure is disposed in the valve body 10, a pin rod 11 is slidably disposed in the valve body 10, a limit groove 21 that is in limit fit with the pin rod 11 when the valve is closed is disposed on an outer surface of the rotating shaft 20, a first permanent magnet 31 is disposed on one end of the pin rod 11 away from the rotating shaft 20, a first vertical displacement block 12 is further disposed in the valve body 10, a spring 13 is connected to a bottom end of the first vertical displacement block 12, a second permanent magnet 32 and a third permanent magnet 33 corresponding to the first permanent magnet 31 are disposed on the first vertical displacement block 12, a fourth permanent magnet 34 is disposed on a top end of the first vertical, a rotating wheel 14 is further arranged in the valve body 10, a connecting line 15 is arranged on the rotating wheel 14, two ends of the connecting line 15 are respectively connected with a fifth permanent magnet 35 and a second vertical displacement block 16, an annular groove 17 is formed in the outer surface of the pin rod 11, one end, far away from the connecting line 15, of the second displacement block is in limit fit with the annular groove 17 when the valve is closed, an unlocking hole 18 communicated with the outside is further formed in the valve body 10, the bottom of the unlocking hole 18 is close to the fourth permanent magnet 34, the fifth permanent magnet 35 is close to the inner side wall of the unlocking hole 18, an unlocking block 19 is arranged in the unlocking hole 18, and a sixth permanent magnet 36 corresponding to the fourth permanent magnet 34 and a seventh permanent magnet 37 corresponding to the fifth permanent magnet 35 are arranged on the unlocking block 19;
the second permanent magnet 32 is located below the third permanent magnet 33, the corresponding magnetic poles of the second permanent magnet 32 and the first permanent magnet 31 are the same, the corresponding magnetic poles of the third permanent magnet 33 and the first permanent magnet 31 are different, the corresponding magnetic poles of the fourth permanent magnet 34 and the sixth permanent magnet 36 are the same, and the corresponding magnetic poles of the fifth permanent magnet 35 and the seventh permanent magnet 37 are different.
In another embodiment, the repulsive force between the fourth permanent magnet 34 and the sixth permanent magnet 36 is greater than the elastic force of the spring 13, and the attractive force between the fifth permanent magnet 35 and the seventh permanent magnet 37 is greater than the gravity force of the second vertical displacement block 16.
The working principle of the above embodiment is as follows: the valve is closed by the rotation of the rotating shaft 20, the limiting groove 21 corresponds to the position of the pin rod 11, the pin rod 11 is pushed into the limiting groove 21 under the action of repulsive force of the second permanent magnet 31 and the first permanent magnet 31, the rotating shaft 20 is difficult to rotate, the second vertical displacement block 16 descends into the annular groove 17 due to self gravity, the pin rod 11 cannot slide, if the valve is to be opened, the unlocking block 19 is placed into the unlocking hole 18, the second vertical displacement block 16 is lifted, then the pin rod 11 slides towards the first vertical displacement block 12, the limiting effect of the rotating shaft 20 is relieved, and the valve can be opened in a rotating mode.
The utility model discloses simple structure, the spacing pivot 20 of pin rod 11, the spacing pin rod 11 of second displacement piece adopts twice magnetism unblock mode, has improved the performance that the switching was prevented to the valve.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (2)
1. A magnetic locking structure of a valve comprises a valve body of the valve, a spherical valve core arranged in the valve body and a rotating shaft fixedly connected with the spherical valve core, wherein the rotating shaft is connected with the valve body through a bearing, a sealing sleeve is arranged between the spherical valve core and the valve body, and a locking structure is arranged in the valve body, and the magnetic locking structure is characterized in that a pin rod is arranged in the valve body in a sliding manner, a limiting groove which is in limit fit with the pin rod when the valve is closed is arranged on the outer surface of the rotating shaft, a first permanent magnet is arranged at one end, away from the rotating shaft, of the pin rod, a first vertical displacement block is further arranged in the valve body, a spring is connected with the bottom end of the first vertical displacement block, a second permanent magnet and a third permanent magnet which correspond to the first permanent magnet are arranged on the first vertical displacement block, a fourth permanent magnet is arranged at the top end of the, the rotating wheel is provided with a connecting wire, two ends of the connecting wire are respectively connected with a fifth permanent magnet and a second vertical displacement block, an annular groove is formed in the outer surface of the pin rod, one end, far away from the connecting wire, of the second vertical displacement block is in limit fit with the annular groove when the valve is closed, an unlocking hole communicated with the outside is further formed in the valve body, the bottom of the unlocking hole is close to the fourth permanent magnet, the fifth permanent magnet is close to the inner side wall of the unlocking hole, an unlocking block is arranged in the unlocking hole, and a sixth permanent magnet corresponding to the fourth permanent magnet and a seventh permanent magnet corresponding to the fifth permanent magnet are arranged on the unlocking block;
the second permanent magnet is located below the third permanent magnet, corresponding magnetic poles of the second permanent magnet and the first permanent magnet are the same, corresponding magnetic poles of the third permanent magnet and the first permanent magnet are different, corresponding magnetic poles of the fourth permanent magnet and the sixth permanent magnet are the same, and corresponding magnetic poles of the fifth permanent magnet and the seventh permanent magnet are different.
2. The magnetic locking structure of a valve according to claim 1, wherein the repulsive force between the fourth permanent magnet and the sixth permanent magnet is greater than the elastic force of the spring, and the attractive force between the fifth permanent magnet and the seventh permanent magnet is greater than the gravity of the second vertical displacement block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985688.1U CN210135311U (en) | 2019-06-27 | 2019-06-27 | Magnetic locking structure of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985688.1U CN210135311U (en) | 2019-06-27 | 2019-06-27 | Magnetic locking structure of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135311U true CN210135311U (en) | 2020-03-10 |
Family
ID=69707307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985688.1U Expired - Fee Related CN210135311U (en) | 2019-06-27 | 2019-06-27 | Magnetic locking structure of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210135311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531139A (en) * | 2021-08-25 | 2021-10-22 | 台州净安管业有限公司 | Magnetic gate valve |
-
2019
- 2019-06-27 CN CN201920985688.1U patent/CN210135311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531139A (en) * | 2021-08-25 | 2021-10-22 | 台州净安管业有限公司 | Magnetic gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 |