CN210135306U - Anti-opening worm and worm gear device - Google Patents
Anti-opening worm and worm gear device Download PDFInfo
- Publication number
- CN210135306U CN210135306U CN201920502823.2U CN201920502823U CN210135306U CN 210135306 U CN210135306 U CN 210135306U CN 201920502823 U CN201920502823 U CN 201920502823U CN 210135306 U CN210135306 U CN 210135306U
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- opening
- worm
- rotating sleeve
- cover
- preventing
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- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides an anti-opening worm and worm gear device which has reasonable structure and high safety and can limit non-working personnel to rotate the worm, comprising a shell, the worm arranged on one side in the shell and a worm gear arranged on the other side of the shell and meshed and linked with the lower part of the worm, the upper end of the worm penetrates out of the upper part of the shell, the middle part of the worm wheel is provided with a key hole which is used for being interlocked with an external element, an anti-opening cover is rotatably arranged on the shell, a space is arranged between the anti-opening cover and the worm, a rotating sleeve is arranged in the space, the rotating sleeve can be arranged on the worm in a sliding way up and down, the rotating sleeve and the worm rotate in a coupling way, the rotating sleeve can be coupled with the opening-proof cover to rotate, an opening-proof key is detachably arranged on the opening-proof cover, the opening and closing key can be coupled with the opening-preventing cover to rotate, and the opening and closing key can be attracted and attracted with the rotating sleeve.
Description
Technical Field
The utility model relates to the technical field of transmission, in particular to prevent opening worm and worm gear.
Background
The worm and gear mechanism is widely applied because of stable transmission work and small impact vibration and noise. Moreover, the worm wheel and the worm have a self-locking function, the worm can only drive the worm wheel to rotate, and the worm wheel cannot drive the worm to rotate, so that the valve worm is also often used for the worm of the valve. Not only can realize the start and stop of the worm, but also can realize the self-locking of the worm. However, the application of the worm gear mechanism in the valve is not usually provided with encryption protection measures, so that any worker or non-worker can rotate the worm by clamping the upper end part of the worm to open the valve. Therefore, the opening and closing of the valve cannot be effectively protected, and potential safety hazards exist. For example, in public facilities or factories, valves are opened by non-managers or non-workers, which results in waste of resources and economic loss.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a worm and worm gear device is prevented opening that rational in infrastructure, security are high, can restrict non-staff's rotation worm.
In order to realize the technical problem, the utility model discloses the solution who takes does: an anti-opening worm and worm gear device comprises a shell, a worm arranged on one side in the shell and a worm gear arranged on the other side of the shell and meshed and linked with the lower part of the worm, the upper end of the worm penetrates out of the upper part of the shell, the middle part of the worm wheel is provided with a key hole which is used for being interlocked with an external element, an anti-opening cover is rotatably arranged on the shell, a space is arranged between the anti-opening cover and the worm, a rotating sleeve is arranged in the space, the rotating sleeve can be arranged on the worm in a sliding way up and down, the rotating sleeve and the worm rotate in a coupling way, the rotating sleeve can be coupled with the opening-proof cover to rotate, an opening-proof key is detachably arranged on the opening-proof cover, the opening and closing key can be coupled with the opening-preventing cover to rotate, and the opening and closing key can be attracted and attracted with the rotating sleeve.
The further improvement is that: encircle prevent opening being provided with the lag around the lid, the lag fixed set up in the casing, the lag with prevent opening to have between the lid and supply open and close key male clearance.
The further improvement is that: an elastic reset device which enables the anti-opening cover and the rotating sleeve to be separated is arranged between the anti-opening cover and the rotating sleeve.
The further improvement is that: the lag encircles along the axle center and is equipped with the first spacing boss that prevents to open the lid and upwards slide, it is equipped with the spacing boss of second to prevent opening the lid bottom, the spacing boss card of second is located between first spacing boss and the casing.
The further improvement is that: the inner cavity of the opening-proof cover is provided with a socket, and the rotating sleeve is fixedly provided with a socket bulge which can slide into the socket.
The further improvement is that: the bottom of the rotating sleeve is provided with a third boss around the axis, and the opening-preventing cover is provided with a limiting surface for limiting the third boss to slide upwards.
The further improvement is that: the upper end part of the worm is a square rod, and a square inner cavity matched with the square rod is formed in the inner cavity of the rotating sleeve.
The further improvement is that: the upper end part of the opening-preventing cover is a hexagonal cover head, and the opening-closing key is provided with a hexagonal groove matched with the hexagonal cover head.
The further improvement is that: and the opening and closing key is provided with a through hole for an external force application rod to pass through.
By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model provides an prevent opening worm gear controls the rotation of worm through opening and close the key, can effectual protection worm not rotated by non professional and open, is favorable to utility and property management's use, the security when having improved the use. Meanwhile, in public places or production, the worm can be effectively prevented from rotating, and loss and resource waste are avoided.
Drawings
Fig. 1 is a schematic sectional structure view of an opening prevention worm and worm gear device according to an embodiment of the present invention.
Fig. 2 is a schematic view of a rotating sleeve structure according to an embodiment of the present invention.
Fig. 3 is a schematic view of a rotating sleeve structure according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of the opening prevention cover according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of the opening prevention cover according to the embodiment of the present invention.
Fig. 6 is a schematic view of an opening and closing key according to an embodiment of the present invention.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, the embodiment of the present invention discloses an anti-opening worm and worm gear device, which comprises a housing 1, a magnetic opening and closing key 4, a first rotating sleeve 5, a second rotating sleeve 6 with magnetism attracting to the opening and closing key 4, a worm 2 disposed on one side of the housing, and a worm wheel 3 disposed on the other side of the housing and meshed with the lower part of the worm, wherein the upper end of the worm 2 penetrates the upper part of the housing 1, the middle part of the worm wheel 3 is provided with a keyhole 31 for being interlocked with an external element, the housing 1 is rotatably provided with an anti-opening cover 9, a space is provided between the anti-opening cover 9 and the worm 2, the rotating sleeve 10 is disposed in the space, the rotating sleeve 10 can be slidably disposed on the worm 2 up and down, the rotating sleeve 10 is coupled with the worm 2 for rotation, a socket 94 is disposed in the inner cavity of the anti-opening cover 9, the rotating sleeve 10 is fixedly provided with a socket bulge 104 capable of sliding into the socket 94, the rotating sleeve 10 can rotate in a coupling mode with the opening-preventing cover 9, the opening-preventing cover 9 is detachably provided with an opening-closing key 8, the opening-closing key 8 can rotate in a coupling mode with the opening-preventing cover 9, and the opening-closing key 8 can be attracted and attracted with the rotating sleeve 10 in a magnetic mode.
In order to protect the opening-proof cover 9 and prevent other people from rotating the opening-proof cover 9 by using other clamping tools and damaging the opening-proof cover 9, a protective sleeve 7 is arranged around the opening-proof cover 9, the protective sleeve 7 is fixedly arranged on the valve body 1, and a gap 72 for inserting the opening-proof key 8 is formed between the protective sleeve 7 and the opening-proof cover 9.
In order to prevent the cover 9 and the rotating sleeve 10 from being separated and returned better after the opening and closing key 8 is taken away, a return spring 11 for separating the cover 9 and the rotating sleeve 10 is arranged between the cover 9 and the rotating sleeve 10, the return spring 11 allows the turbine worm device to be mounted at multiple angles, and the cover 9 and the rotating sleeve 10 can be separated and returned at any angles.
In order to simply and effectively prevent the opening-preventing cover 9 from sliding upwards, the protecting sleeve 7 is provided with a first limiting boss 71 which prevents the opening-preventing cover 9 from sliding upwards along the axis in a surrounding manner, the bottom of the opening-preventing cover 9 is provided with a second limiting boss 92, and the second limiting boss 92 is clamped between the first limiting boss 71 and the valve body 1.
In order to further prevent the rotating sleeve 10 from being separated from the worm 2, a third boss 101 is circumferentially arranged at the bottom of the rotating sleeve 10 along the axis, and a limiting surface 92 for limiting the third boss 101 to slide upwards is arranged on the opening-preventing cover 9.
In order to simply and conveniently open and close the key 8 and prevent the cover 9 from coupling transmission, the upper end of the cover 9 is a hexagonal cover head 93, and the key 8 is provided with a hexagonal groove 81 matched with the hexagonal cover head.
In order to simplify and facilitate the coupling transmission of the worm 2 and the rotating sleeve 10, the upper end part of the worm 2 is a square rod, and a square inner cavity 102 matched with the square rod is formed in the inner cavity of the rotating sleeve 10.
In order to enable the worm 2 to be opened more conveniently, the opening and closing key 8 is provided with a through hole 82 through which an external force application rod passes.
The working principle is as follows:
when the worm needs to be rotated, the opening and closing key is inserted into the opening-preventing cover, the hexagonal groove card of the opening and closing key is clamped into the opening-preventing cover, the end face of the opening and closing key has magnetism under the action of the magnet and is attracted with the magnet on the end face of the rotating sleeve, the rotating sleeve is attracted upwards, the rotating sleeve slides upwards, the socket bulge on the rotating sleeve slides into the socket in the opening-preventing cover, at the moment, the elastic deformation of the reset spring is compressed, then the opening and closing key is rotated, the opening and closing key drives the opening-preventing cover to rotate, the opening-preventing cover drives the rotating sleeve to rotate, the rotating sleeve drives the worm to rotate, and the worm drives the worm wheel to rotate. After the worm and worm gear device is opened, the opening and closing key is taken out, the magnet attraction effect is relieved, and the rotating sleeve is restored to the original position under the action of gravity and elastic reset of the reset spring. The worm is in a protected state, preventing non-workers from rotating.
Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a prevent opening worm and worm gear, includes the casing, locates the worm of one side in the casing and locates the worm wheel of casing opposite side and worm lower part meshing interlock, casing upper portion is worn out to the upper end of worm, the middle part of worm wheel is equipped with the keyhole that is used for with external element interlock, its characterized in that: the anti-opening cover is rotatably arranged on the shell, a space is formed between the anti-opening cover and the worm, a rotating sleeve is arranged in the space, the rotating sleeve can slide up and down and is arranged on the worm, the rotating sleeve is coupled with the worm to rotate, the rotating sleeve can be coupled with the anti-opening cover to rotate, an opening and closing key can be detachably arranged on the anti-opening cover, the opening and closing key can be coupled with the anti-opening cover to rotate, and the opening and closing key can be magnetically attracted with the rotating sleeve.
2. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: encircle prevent opening being provided with the lag around the lid, the lag fixed set up in the casing, the lag with prevent opening to have between the lid and supply open and close key male clearance.
3. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: an elastic reset device which enables the anti-opening cover and the rotating sleeve to be separated is arranged between the anti-opening cover and the rotating sleeve.
4. The opening-preventing worm and worm gear device as claimed in claim 2, wherein: the lag encircles along the axle center and is equipped with the first spacing boss that prevents to open the lid and upwards slide, it is equipped with the spacing boss of second to prevent opening the lid bottom, the spacing boss card of second is located between first spacing boss and the casing.
5. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: the inner cavity of the opening-proof cover is provided with a socket, and the rotating sleeve is fixedly provided with a socket bulge which can slide into the socket.
6. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: the bottom of the rotating sleeve is provided with a third boss around the axis, and the opening-preventing cover is provided with a limiting surface for limiting the third boss to slide upwards.
7. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: the upper end part of the worm is a square rod, and a square inner cavity matched with the square rod is formed in the inner cavity of the rotating sleeve.
8. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: the upper end part of the opening-preventing cover is a hexagonal cover head, and the opening-closing key is provided with a hexagonal groove matched with the hexagonal cover head.
9. The opening-preventing worm and worm gear device as claimed in claim 1, wherein: and the opening and closing key is provided with a through hole for an external force application rod to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502823.2U CN210135306U (en) | 2019-04-15 | 2019-04-15 | Anti-opening worm and worm gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502823.2U CN210135306U (en) | 2019-04-15 | 2019-04-15 | Anti-opening worm and worm gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135306U true CN210135306U (en) | 2020-03-10 |
Family
ID=69703053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920502823.2U Expired - Fee Related CN210135306U (en) | 2019-04-15 | 2019-04-15 | Anti-opening worm and worm gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210135306U (en) |
-
2019
- 2019-04-15 CN CN201920502823.2U patent/CN210135306U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 |