CN209781793U - Water leakage protection knob of electric ball valve - Google Patents
Water leakage protection knob of electric ball valve Download PDFInfo
- Publication number
- CN209781793U CN209781793U CN201920402669.1U CN201920402669U CN209781793U CN 209781793 U CN209781793 U CN 209781793U CN 201920402669 U CN201920402669 U CN 201920402669U CN 209781793 U CN209781793 U CN 209781793U
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- knob
- bottom plate
- guide groove
- ball valve
- telescopic head
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Abstract
The utility model discloses a water leakage protection knob of an electric ball valve, a knob bottom plate is fixed on a rotating shaft, a knob sleeve is sleeved on the knob bottom plate, a plurality of limit bulges are arranged on the inner wall of the knob sleeve at intervals in a surrounding way, the lower surfaces of the limit bulges are propped against the upper surface of the knob bottom plate, the knob sleeve can rotate relative to the knob bottom plate, a knob cover plate is covered on the knob bottom plate, the knob cover plate is fixedly connected with the knob bottom plate, the knob bottom plate is provided with a boss which protrudes upwards, the boss is provided with at least one guide groove, a telescopic assembly is arranged in the guide groove and comprises a telescopic head, the telescopic head is tightly pressed between the guide groove and the knob sleeve ring, and the telescopic head partially extends out of the guide groove, the telescopic head has the advantages that when the rotary knob is excessively stressed or hard to rotate, the telescopic head is pressed into the guide groove, so that the lantern ring of the rotary knob slips, and the function of limiting is achieved; when the torque of the rotary knob is smaller than the compression deformation limit of the telescopic assembly, the telescopic head abuts against the side wall of the limit protrusion and can still play the role of the rotary knob.
Description
Technical Field
The utility model relates to an electric ball valve's the protection device that leaks especially relates to an electric ball valve's protection knob that leaks.
background
The electric ball valve is an important actuating mechanism in an industrial automation control system. The composite material is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. A water leakage protection actuator is arranged in the electric ball valve, and when a flood occurs, the power is cut off, and the water leakage protection actuator drives the ball valve to close a water source. If the water trouble or the power failure does not occur for a long time, the initial rotating torque of the ball valve is very large once the water trouble or the power failure occurs after the ball valve does not rotate for a long time, so that the ball valve cannot be driven by an internal driver, and the ball valve cannot be closed; even if the ball valve is damaged in use, the damage cannot be found in time, and the ball valve cannot be normally used when water trouble or power failure occurs. Can set up the protection device that leaks that has the automatic switch function among the current electronic ball valve, but because the protection device that leaks need be under the sufficient condition of electric power storage from the area, just can normally switch the ball valve, when the electric power storage is not enough or the protection device that leaks damages, can't adopt normally to close the switch water source, can set up manual adjustment mechanism among the protection device that consequently leaks to the manual ball valve that opens under the power failure state guarantees can normally supply water.
However, when the water leakage protection device is screwed manually, the transmission structure of the water leakage protection device is easily broken when the water leakage protection device is screwed to the limit position, because the northern european people have high hand strength and high screwing speed, the water leakage protection device is damaged.
Disclosure of Invention
the utility model aims to solve the technical problem that a protection knob that leaks that not only can guarantee the knob normal rotation but also can be used for preventing rotatory knob too hard to lead to the electric ball valve of the protector damage that leaks is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a water leakage protection knob of an electric ball valve comprises a knob bottom plate, a knob cover plate, a knob sleeve ring and a rotating shaft, wherein the knob bottom plate is fixed on the rotating shaft, the knob sleeve ring is arranged on the knob bottom plate, a plurality of limiting protrusions are arranged on the inner wall of the knob sleeve ring in a surrounding mode at intervals, the lower surfaces of the limiting protrusions abut against the upper surface of the knob bottom plate, the knob sleeve ring can rotate relative to the knob bottom plate, the knob cover plate covers the knob bottom plate, the knob cover plate is fixedly connected with the knob bottom plate, an upward protruding boss is arranged on the knob bottom plate and is located on the inner side of the limiting protrusions, at least one guide groove is formed in the boss, a telescopic assembly is arranged in the guide groove, and the telescopic assembly comprises a telescopic head, the telescopic head is pressed between the guide groove and the knob lantern ring, the telescopic head partially extends out of the guide groove, when the knob lantern ring is rotated, the extending end of the telescopic head props against the side wall of the limiting protrusion, and the rotation is continued to enable the rotating shaft to rotate.
The guide grooves are two, the two guide grooves are symmetrically arranged relative to the center line of the boss respectively, the telescopic head is arranged in each guide groove, and an elastic reset piece is arranged between the telescopic head and the guide grooves. Therefore, the telescopic assemblies are symmetrically arranged relative to the center line of the boss, so that the force of the knob is balanced.
One end of the guide groove, which is close to the knob lantern ring, is provided with an arc-shaped pressing plate, and the arc-shaped pressing plate is pressed on the telescopic head. The arc-shaped pressing plate can be limited in the guide groove when the telescopic head is ensured to be contracted, and the limiting effect is achieved.
The number of the limiting protrusions is 6, and the two opposite limiting protrusions are symmetrically arranged relative to the center line of the boss respectively.
The elastic reset piece is a spring.
The center of boss be provided with the mount pad that is used for fixed rotation axis, the center of mount pad be provided with the through-hole, the upper end of rotation axis fix the through-hole in. The rotating shaft is convenient to fix.
The middle part of the knob cover plate is provided with a limiting hole, and the knob cover plate is sleeved on the mounting seat through the limiting hole. The knob cover plate is limited.
The outer wall of the knob lantern ring is provided with anti-skid grooves at intervals in a surrounding mode. Has the functions of increasing friction force and preventing skid.
Compared with the prior art, the utility model has the advantages that the utility model discloses a water leakage protection knob of an electric ball valve, because the knob bottom plate is fixed on the rotating shaft, the knob lantern ring is arranged on the knob bottom plate, a plurality of spacing protrusions are arranged on the inner wall of the knob lantern ring in a spaced surrounding way, the lower surfaces of the spacing protrusions are propped against the upper surface of the knob bottom plate, the knob lantern ring can rotate relative to the knob bottom plate, the knob cover plate is covered on the knob bottom plate, the knob cover plate is fixedly connected with the knob bottom plate, the knob bottom plate is provided with a boss which protrudes upwards, the boss is positioned at the inner side of the spacing protrusions, at least one guide groove is arranged on the boss, a telescopic component is arranged in the guide groove, the telescopic component comprises a telescopic head, the telescopic head is tightly pressed between the guide groove and the knob lantern ring, and the telescopic head partially extends out of the guide groove, the telescopic head abuts against the side wall of the limiting protrusion and continues to rotate to enable the rotating shaft to rotate, so that the knob is guaranteed to normally rotate; when the rotary knob is too large or too violent, namely the rotating torque is larger than the compression deformation limit of the telescopic assembly, the telescopic head is pressed into the guide groove, so that the knob lantern ring slips, and when the knob torque is smaller than the compression deformation limit of the telescopic assembly, the telescopic head supports against the side wall of the limit protrusion again and drives the rotating shaft to rotate, thereby playing a role of protecting the water leakage protection device gear and prolonging the service life of the water leakage protection device.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the knob of the present invention with the rotating shaft removed;
Fig. 3 is a schematic diagram of the internal structure of the present invention (the telescopic assembly is in a free state);
Fig. 4 is a schematic diagram of the internal structure of the present invention (the telescopic assembly is in a compressed state);
Fig. 5 is an exploded view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: as shown in fig. 1-5, a water leakage protection knob of an electric ball valve comprises a knob bottom plate 1, a knob cover plate 2, a knob sleeve ring 3 and a rotating shaft 4, wherein the knob bottom plate 1 is fixed on the rotating shaft 4, the knob sleeve ring 3 is arranged on the knob bottom plate 1, a plurality of limit protrusions 5 are arranged on the inner wall of the knob sleeve ring 3 at intervals in a surrounding manner, the lower surfaces of the limit protrusions 5 are abutted against the upper surface of the knob bottom plate 1, the knob sleeve ring 3 can rotate relative to the knob bottom plate 1, the knob cover plate 2 covers the knob bottom plate 1, the knob cover plate 2 is fixedly connected with the knob bottom plate 1, a boss 6 which protrudes upwards is arranged on the knob bottom plate 1, the boss 6 is positioned at the inner side of the limit protrusion 5, at least one guide groove 7 is arranged on the boss 6, a telescopic assembly 8 is arranged in the guide groove 7, the telescopic assembly 8 comprises a telescopic head 81, and the telescopic head 81 partially extends out of the guide groove 7, when the knob lantern ring 3 is rotated, the extending end of the telescopic head 81 abuts against the side wall of the limiting protrusion 5, and the rotation is continued to enable the rotating shaft 4 to rotate.
Example two: as shown in fig. 1-5, a water leakage protection knob of an electric ball valve comprises a knob bottom plate 1, a knob cover plate 2, a knob sleeve ring 3 and a rotating shaft 4, wherein the knob bottom plate 1 is fixed on the rotating shaft 4, the knob sleeve ring 3 is arranged on the knob bottom plate 1, a plurality of limiting protrusions 5 are arranged on the inner wall of the knob sleeve ring 3 at intervals, the lower surfaces of the limiting protrusions 5 are abutted against the upper surface of the knob bottom plate 1, the knob sleeve ring 3 can rotate relative to the knob bottom plate 1, the knob cover plate 2 covers the knob bottom plate 1, the knob cover plate 2 is fixedly connected with the knob bottom plate 1, a boss 6 protruding upwards is arranged on the knob bottom plate 1, the boss 6 is positioned at the inner side of the limiting protrusion 5, two guide grooves 7 are arranged on the boss 6, the two guide grooves 7 are respectively arranged symmetrically relative to the center line of the boss 6, a telescopic assembly 8 is arranged in each, the telescopic head 81 is tightly pressed between the guide groove 7 and the knob sleeve ring 3, part of the telescopic head 81 extends out of the guide groove 7, and a spring 82 is arranged between the telescopic head 81 and the guide groove 7; when the knob lantern ring 3 is rotated, the extending end of the telescopic head 81 is abutted against the side wall of the limiting protrusion 5, and the rotation is continued to rotate the rotating shaft 4.
In this embodiment, an arc-shaped pressing plate 9 is arranged at one end of the guide groove 7 close to the knob sleeve 3, and the arc-shaped pressing plate 9 presses on the telescopic head 81.
in this embodiment, the number of the position-limiting protrusions 5 is 6, and two opposite position-limiting protrusions 5 are symmetrically arranged with respect to the center line of the boss 6.
Example three: the other structures are the same as the embodiment, and the differences are as follows: the center of the boss 6 is provided with a mounting seat 10 for fixing the rotating shaft 4, the center of the mounting seat 10 is provided with a through hole 11, and the upper end of the rotating shaft 4 is fixed in the through hole 11. The middle part of the knob cover plate 2 is provided with a limiting hole 12, and the knob cover plate 2 is sleeved on the mounting seat 10 through the limiting hole 12. The knob cover plate 2 is also provided with a mounting hole 13, and the knob cover plate 2 is inserted into the mounting hole 13 through a threaded fastener and fixed on the knob bottom plate 1.
Example four: the other structures are the same as the three phases of the embodiment, and the difference is that: the outer wall of the knob lantern ring 3 is provided with anti-skid grooves 14 at intervals.
Claims (8)
1. A water leakage protection knob of an electric ball valve is characterized by comprising a knob bottom plate, a knob cover plate, a knob sleeve ring and a rotating shaft, wherein the knob bottom plate is fixed on the rotating shaft, the knob sleeve ring is arranged on the knob bottom plate, a plurality of limiting protrusions are arranged on the inner wall of the knob sleeve ring in an encircling mode at intervals, the lower surfaces of the limiting protrusions abut against the upper surface of the knob bottom plate, the knob sleeve ring can rotate relative to the knob bottom plate, the knob cover plate covers the knob bottom plate, the knob cover plate is fixedly connected with the knob bottom plate, a boss protruding upwards is arranged on the knob bottom plate and located on the inner side of the limiting protrusions, at least one guide groove is formed in the boss, and a telescopic assembly is arranged in the guide groove, the telescopic assembly comprises a telescopic head, the telescopic head is pressed between the guide groove and the knob lantern ring, the telescopic head partially extends out of the guide groove, when the knob lantern ring is rotated, the extending end of the telescopic head abuts against the side wall of the limiting protrusion, and the rotation is continued to rotate so that the rotating shaft rotates.
2. The water leakage protection knob of an electric ball valve according to claim 1, wherein the number of the guide grooves is two, the two guide grooves are symmetrically arranged with respect to the center line of the boss, the telescopic head is arranged in each guide groove, and an elastic reset member is arranged between the telescopic head and the guide grooves.
3. the water leakage protection knob of an electric ball valve as claimed in claim 2, wherein an arc pressing plate is disposed at one end of the guide groove close to the knob sleeve ring, and the arc pressing plate presses on the telescopic head.
4. The leakage protection knob of an electric ball valve according to claim 2, wherein the number of the limiting protrusions is 6, and two opposite limiting protrusions are symmetrically arranged with respect to the center line of the boss, respectively.
5. The water leakage protection knob of an electric ball valve according to claim 2, wherein the elastic restoring member is a spring.
6. The leakage protection knob of an electric ball valve according to claim 1, wherein a mounting seat for fixing the rotation shaft is provided at the center of the boss, a through hole is provided at the center of the mounting seat, and the upper end of the rotation shaft is fixed in the through hole.
7. The water leakage protection knob of an electric ball valve as claimed in claim 6, wherein a limiting hole is formed in the middle of the knob cover plate, and the knob cover plate is disposed on the mounting seat through the limiting hole.
8. The water leakage protection knob of an electric ball valve as claimed in claim 1, wherein the outer wall of the knob sleeve is provided with anti-slip grooves at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920402669.1U CN209781793U (en) | 2019-03-27 | 2019-03-27 | Water leakage protection knob of electric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920402669.1U CN209781793U (en) | 2019-03-27 | 2019-03-27 | Water leakage protection knob of electric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781793U true CN209781793U (en) | 2019-12-13 |
Family
ID=68799912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920402669.1U Active CN209781793U (en) | 2019-03-27 | 2019-03-27 | Water leakage protection knob of electric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173549A1 (en) * | 2022-03-15 | 2023-09-21 | 箭牌家居集团股份有限公司 | Float adjustment mechanism |
-
2019
- 2019-03-27 CN CN201920402669.1U patent/CN209781793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173549A1 (en) * | 2022-03-15 | 2023-09-21 | 箭牌家居集团股份有限公司 | Float adjustment mechanism |
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