CN219551711U - Anti-electric bimetal thermometer - Google Patents
Anti-electric bimetal thermometer Download PDFInfo
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- CN219551711U CN219551711U CN202320600737.1U CN202320600737U CN219551711U CN 219551711 U CN219551711 U CN 219551711U CN 202320600737 U CN202320600737 U CN 202320600737U CN 219551711 U CN219551711 U CN 219551711U
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- conical surface
- bimetal
- nut
- temperature measuring
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Abstract
The utility model provides an anti-electricity bimetal thermometer, which comprises: the bimetal temperature measuring element is cylindrical, one end of the bimetal temperature measuring element, which is far away from the detection end, is fixedly connected with one end of the connecting nut along the axial direction, the sleeve is a cylindrical cavity, one end opening of the sleeve is closed, one end of the sleeve opening is embedded inside the insulating nut, the first sealing ring is coaxially arranged between the sleeve and the insulating nut and is respectively sealed with the surface of the sleeve and the surface of the insulating nut, the bimetal temperature measuring element is coaxially embedded inside the sleeve, the connecting nut is coaxially embedded inside the opening of the end, which is far away from the sleeve, of the insulating nut, the bimetal temperature measuring element is arranged at intervals with the sleeve, and the connecting nut is arranged at intervals with the sleeve. The discharge bimetal thermometer has reasonable design, adopts the insulation nut and the sleeve to isolate the bimetal temperature measuring element, and avoids the current in the container wall or the fluid to be measured from being led to the human body.
Description
Technical Field
The utility model relates to the technical field of instrument equipment, in particular to an anti-electricity bimetal thermometer.
Background
The bimetal thermometer is widely applied to temperature measurement of various flowing media such as liquid, gas and the like, and the working principle is mainly that a temperature measuring element with a bimetal spiral sheet is in transmission connection with an instrument pointer, and the temperature measuring element with the bimetal spiral sheet structure is driven to rotate by utilizing different expansion coefficients of different metal materials, and finally the instrument pointer is rotated, so that the aim of temperature indication is achieved.
Because the needs of production, some flowing medium that awaits measuring or bimetal thermometer's mounting structure probably have the risk of electrification, consequently in order to avoid bimetal thermometer surface electrification and bring the potential safety hazard, need carry out insulating treatment to bimetal thermometer's mounting structure for avoid the power to switch on to operating personnel through bimetal thermometer, take place for precaution safety accident.
How to provide an insulated anti-electricity type bimetal thermometer with reasonable structural design is a technical problem to be solved at present.
Disclosure of Invention
In view of the above, the utility model provides an anti-electric bimetal thermometer with an insulation function, and aims to solve the problem that the conventional bimetal thermometer is poor in insulation performance.
The technical scheme of the utility model is realized as follows: the utility model provides an anti-electricity bimetal thermometer, which comprises: the bimetal temperature measuring element is cylindrical, one end of the bimetal temperature measuring element, which is far away from the detection end, is fixedly connected with one end of the connecting nut along the axial direction, the sleeve is a cylindrical cavity, one end opening of the sleeve is closed, one end of the sleeve opening is embedded inside the insulating nut, the first sealing ring is coaxially arranged between the sleeve and the insulating nut and is respectively sealed with the surface of the sleeve and the surface of the insulating nut, the bimetal temperature measuring element is coaxially embedded inside the sleeve, the connecting nut is coaxially embedded inside the opening of the end, which is far away from the sleeve, of the insulating nut, the bimetal temperature measuring element is arranged at intervals with the sleeve, and the connecting nut is arranged at intervals with the sleeve.
In some embodiments, the bimetal temperature measuring element comprises a bimetal spiral sheet, a pointer shaft, a pointer and a metal protection tube, one end of the bimetal spiral sheet is fixedly connected with one end of the inner wall of the metal protection tube, the other end of the bimetal spiral sheet is fixedly connected with the pointer through the pointer shaft, one end of the metal protection tube, which is far away from the fixed end of the bimetal spiral sheet, is connected with a watchcase, the pointer shaft extends into the watchcase, the pointer is arranged in the watchcase, the structure of the bimetal temperature measuring element is the prior art, wherein the cylindrical shape specifically refers to the metal protection tube in the structure, the structures of the bimetal spiral sheet, the pointer shaft, the pointer and the like which are positioned in the metal protection tube are not described in the prior art, and other similar structures with the same function can be regarded as the bimetal temperature measuring element.
In some embodiments, the temperature sensor further comprises an insulating layer, wherein the insulating layer is coated on the outer surface of the bimetal temperature measuring element.
In some embodiments, the insulating layer is a slip fit with the inner wall of the sleeve.
In some embodiments, a second seal ring is further included, the second seal ring being coaxially disposed between the coupling nut and the sleeve, the second seal ring being in sealing engagement with the sleeve surface and the coupling nut surface, respectively.
In some embodiments, the sleeve opening has a flared end, a first tapered surface is provided on an outside of the sleeve opening end, a second tapered surface is provided on an inside of the insulating nut, the first tapered surface is disposed face-to-face with the second tapered surface, and the first seal ring is disposed between the first tapered surface and the second tapered surface.
In some embodiments, the surface of the second conical surface is provided with a first annular groove, at least part of the first sealing ring is embedded in the first annular groove, and the first sealing ring protrudes out of the second conical surface.
In some embodiments, a third conical surface is arranged on the inner side of the sleeve opening, a fourth conical surface is arranged on one end, close to the bimetal temperature measuring element, of the connecting nut, the third conical surface and the fourth conical surface are arranged face to face, and the second sealing ring is arranged between the third conical surface and the fourth conical surface.
In some embodiments, the surface of the fourth conical surface is provided with a second annular groove, at least part of the second sealing ring is embedded in the second annular groove, and the second sealing ring protrudes out of the fourth conical surface.
In some embodiments, a side of the sleeve proximate one end of the first tapered surface is in threaded engagement with an inner wall of the insulating nut.
In some embodiments, the outer wall of the coupling nut is threadedly engaged with the inner wall of the insulating nut.
Compared with the prior art, the anti-electricity bimetal thermometer has the following beneficial effects:
compared with the existing bimetal thermometer, the anti-electricity bimetal thermometer has a better insulation effect, the bimetal thermometer is wrapped by adopting the insulation nut and the sleeve to be matched, electric leakage caused by direct contact of fluid to be measured with the bimetal thermometer is avoided, meanwhile, the insulation nut can prevent the container wall of the fluid to be measured from being directly contacted with the bimetal thermometer, and the insulation performance of the integral structure is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an isometric view of a tamper bimetallic thermometer of the present utility model;
FIG. 2 is an axial cross-sectional view of the anti-electric bimetallic thermometer of the present utility model;
FIG. 3 is an axial cross-sectional view of the anti-electric bimetallic thermometer of the present utility model in an exploded condition;
FIG. 4 is an axial cross-sectional view of the anti-electric bimetallic thermometer of the present utility model in an alternate view from an exploded condition;
FIG. 5 is a front cross-sectional view of the anti-electric bimetallic thermometer of the present utility model;
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a cross-sectional view of a bimetal temperature measuring element in the anti-electric bimetal thermometer of the present utility model.
In the figure: 1-bimetal temperature measuring element, 2-insulating nut, 3-coupling nut, 4-first sealing washer, 5-sleeve pipe, 6-insulating layer, 7-second sealing washer, 21-second conical surface, 22-first ring channel, 31-fourth conical surface, 32-second ring channel, 51-first conical surface, 52-third conical surface.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, all technical terms and science used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present utility model belong. If the definitions set forth in this section are contrary to or otherwise inconsistent with the definitions set forth in the patents, patent applications, published patent applications and other publications incorporated herein by reference, the definitions set forth in this section are preferentially set forth in the definitions set forth herein.
As shown in fig. 1, in combination with fig. 2 to 7, the anti-electric bimetal thermometer of the present utility model comprises:
the bimetal temperature measuring element 1 is in a cylindrical shape, the bimetal temperature measuring element 1 is in the prior art, and mainly comprises a bimetal sheet with a metal shell capable of being arranged in the metal shell and a pointer shaft for mechanical transmission, wherein the tail end of the pointer shaft is connected with a pointer, and the pointer is arranged in a watchcase and is matched with a dial plate, so that the temperature indicating effect is achieved;
the insulation nut 2 is used for fixing the bimetal thermometer on the surface of equipment so that the detection end of the bimetal thermometer can be in contact with fluid to be detected and carry out temperature detection, a through hole is formed in the middle of the insulation nut, the bimetal temperature measuring element penetrates through the through hole so as to be insulated from external equipment, the insulation nut 2 is made of insulation materials, and preferably, the insulation nut 2 can be made of polytetrafluoroethylene materials;
the connecting nut 3 is used for fixing the bimetal temperature measuring element 1 and connecting the bimetal temperature measuring element 1 with a watchcase structure, and as a further preferred mode, an extension pipe can be connected between the watchcase and the connecting nut 3, a pointer shaft can extend in the extension pipe and is in transmission connection with a pointer in the watchcase, the bimetal temperature measuring element 1 is coaxially arranged at one end of the connecting nut 3, one end of the connecting nut 3 provided with the bimetal temperature measuring element 1 is embedded into an opening at one end of the insulating nut 2, and the bimetal temperature measuring element 1 extends out from an opening at one end of the insulating nut 2 far away from the connecting nut 3;
the sleeve 5 is of a columnar structure and is provided with a columnar cavity, one end of the sleeve 5 in the axial direction is open, the other end of the sleeve is closed, one end of the opening is embedded into the opening of one end of the insulating nut 2 far away from the connecting nut 3, meanwhile, the bimetal temperature measuring element 1 is embedded into the sleeve 5, the bimetal temperature measuring element 1 and the sleeve 5 are arranged at intervals, and the connecting nut 3 and the sleeve 5 are arranged at intervals;
the first seal ring 4, the first seal ring 4 is coaxially arranged outside the sleeve 5, and the first seal ring 4 is respectively in close fit with the outer side surface of the sleeve 5 and the inner side surface of the insulating nut 2.
In the above embodiment, the bimetal temperature measuring element 1 is fixed on the insulating nut 2 through the connecting nut 3, the insulating nut 2 is fixed on the housing of the container apparatus during the process for fluid detection, the sleeve 5 is directly in contact with the fluid, and the sleeve 5 is mounted on the insulating nut 2, so that when the fluid is charged or the housing of the container apparatus is charged, the current finally flows to the insulating nut 2, thereby effectively avoiding the current from flowing to the bimetal temperature measuring element 1 or directly to the connecting nut 3, and effectively avoiding the case of the bimetal thermometer from being charged.
In some embodiments, the temperature measuring device further comprises an insulating layer 6, and the insulating layer 6 is arranged on the outer surface of the bimetal temperature measuring element 1 in a coating mode.
In the above embodiment, since the bimetal temperature measuring element 1 has a larger length-diameter ratio, in the use process, the bimetal temperature measuring element 1 is easy to contact with the inner wall of the sleeve 5, and in order to avoid the current conduction caused by the contact problem, an insulating layer 6 is arranged on the outer surface of the bimetal temperature measuring element 1, so that the contact conduction between the bimetal temperature measuring element 1 and the inner wall of the sleeve 5 is effectively avoided.
The insulating layer 6 may be made of a common insulating material such as polymer, ceramic, insulating composition, etc., preferably polytetrafluoroethylene.
In some embodiments, the insulating layer 6 is a sliding fit with the inner wall of the sleeve 5.
In the above embodiment, when the bimetal temperature measuring element 1 and the sleeve 5 are arranged at intervals, although a good insulation effect is achieved, the heat conduction effect between the bimetal temperature measuring element 1 and the sleeve 5 is reduced, and the temperature measuring accuracy and the response speed of the bimetal temperature measuring element 1 are directly affected, so that the insulating layer 6 is attached to the sleeve 5 after the insulating layer 6 is arranged, and the heat conduction efficiency between the insulating layer 6 and the sleeve 5 can be effectively improved.
In some embodiments, heat-conducting silicone grease can be filled between the insulating layer 6 and the sleeve 5, so that the contact area is increased, and the heat transfer efficiency is further improved.
In some embodiments, a second sealing ring 7 is further included, the second sealing ring 7 is coaxially arranged between the connecting nut 3 and the sleeve 5, and the second sealing ring 7 is respectively in close fit with the surface of the sleeve 5 and the surface of the connecting nut 3.
In the above embodiment, the first sealing ring 4 may be used to prevent the fluid to be tested from entering the inner side of the insulating nut 2 through the gap between the sleeve 5 and the insulating nut 2, and the second sealing ring 7 may be used to keep insulation between the connecting nut 3 and the sleeve 5, and meanwhile, it may be avoided that the fluid passing through the first sealing ring 4 enters the inner side of the sleeve 5, so that the insulation performance of the bimetal thermometer is improved, and preferably, the second sealing ring 7 is made of an insulation material.
In some embodiments, the open end of the sleeve 5 is flared, the outside of the open end of the sleeve 5 is provided with a first conical surface 51, the inside of the insulating nut 2 is provided with a second conical surface 21, the first conical surface 51 is arranged face to face with the second conical surface 21, and the first sealing ring 4 is arranged between the first conical surface 51 and the second conical surface 21.
In the above embodiment, in order to facilitate improvement of the sealing performance of the gap between the sleeve 5 and the insulating nut 2, the first conical surface 51 and the second conical surface 21 are adopted to be matched with each other, the axes of the first conical surface 51 and the second conical surface 21 coincide with the axis of the sleeve 5 and the axis of the insulating nut 2, when the sleeve 5 is installed, one closed end of the sleeve 5 is embedded from the opening opposite to the end of the second conical surface 21 until the first conical surface 51 and the second conical surface 21 are close to each other, and at the moment, the first conical surface 51 and the second conical surface 21 are extruded against the first sealing ring 4, so that the contact area between the first conical surface 51 and the second conical surface 21 and the first sealing ring 4 is increased, and the sealing performance is improved.
In some embodiments, the surface of the second conical surface 21 is provided with a first annular groove 22, at least part of the first sealing ring 4 is embedded in the first annular groove 22, and the first sealing ring 4 protrudes from the second conical surface 21.
In the above embodiment, the axis of the first annular groove 22 coincides with the axis of the insulating nut 2, and the first annular groove 22 can be used for pre-installing and limiting the first sealing ring 4, so that displacement of the first sealing ring 4 in the process of approaching the first conical surface 51 and the second conical surface 21 is avoided, the sealing effect is affected, and meanwhile, the contact area between the insulating nut 2 and the first sealing ring 4 can be increased by the first annular groove 22, and the sealing performance is improved.
In some embodiments, a third conical surface 52 is arranged on the inner side of the opening of the sleeve 5, a fourth conical surface 31 is arranged at one end, close to the bimetal temperature measuring element 1, of the connecting nut 3, the third conical surface 52 and the fourth conical surface 31 are arranged face to face, a second sealing ring 7 is arranged between the third conical surface 52 and the fourth conical surface 31, and the second sealing ring 7 is in sealing fit with the surface of the third conical surface 52 and the surface of the fourth conical surface 31 respectively.
In the above embodiment, the third conical surface 52 and the fourth conical surface 31 are coaxially arranged, and the axes of the third conical surface 52 and the fourth conical surface 31 are coincident with the axis of the insulating nut 2, and the third conical surface 52 and the fourth conical surface 31 are gradually close to each other in the installation process of the connecting nut 3 and finally squeeze the second sealing ring 7, so that the second sealing ring 7 is more convenient to be closely adhered to the surfaces of the connecting nut 3 and the sleeve 5, and the sealing performance is improved.
In some embodiments, the surface of the fourth conical surface 31 is provided with a second annular groove 32, at least part of the second sealing ring 7 is embedded in the second annular groove 32, and the second sealing ring 7 protrudes from the surface of the fourth conical surface.
In the above embodiment, the second annular groove 32 is used for positioning the second sealing ring 7, and simultaneously facilitates pre-installation of the second sealing ring 7, and simultaneously can also improve the contact area between the second sealing ring 7 and the surface of the connecting nut 3, and improve the sealing effect.
In some embodiments, the sleeve 5 is threaded onto the inner wall of the insulating nut 2 near one end of the first tapered surface 51.
In the above embodiment, the screw-thread fit is more convenient for the fixed connection between the sleeve 5 and the insulating nut 2, and the screw-thread fit is beneficial to improving the sealing performance between the sleeve 5 and the insulating nut 2 and preventing the fluid to be measured from entering the inner side of the insulating nut 2.
In some embodiments, the outer wall of the coupling nut 3 is threadedly engaged with the inner wall of the insulating nut 2.
In the above embodiment, the screw thread fit is adopted to be more convenient for the fixed connection between the connecting nut 3 and the insulating nut 2, and simultaneously the sealing performance between the connecting nut 3 and the insulating nut 2 can be improved, so that the fluid to be tested is prevented from being discharged out of the container through the gap between the connecting nut 3 and the insulating nut 2, and the threat is brought to operators.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. An anti-electric bimetal thermometer, comprising: the bimetal temperature measuring element is cylindrical, one end of the bimetal temperature measuring element, which is far away from the detection end, is fixedly connected with one end of the connecting nut along the axial direction, the sleeve is a cylindrical cavity, one end opening of the sleeve is closed, one end of the sleeve opening is embedded inside the insulating nut, the first sealing ring is coaxially arranged between the sleeve and the insulating nut and is respectively sealed with the surface of the sleeve and the surface of the insulating nut, the bimetal temperature measuring element is coaxially embedded inside the sleeve, the connecting nut is coaxially embedded inside the opening of the end, which is far away from the sleeve, of the insulating nut, the bimetal temperature measuring element is arranged at intervals with the sleeve, and the connecting nut is arranged at intervals with the sleeve.
2. The anti-electric bimetal thermometer of claim 1 further comprising an insulating layer, wherein the insulating layer is wrapped on the outer surface of the bimetal temperature measuring element.
3. The anti-electrical bimetal thermometer of claim 2 wherein the insulating layer is a sliding fit with the inner wall of the sleeve.
4. The anti-electrical bimetal thermometer of claim 1 further comprising a second seal ring coaxially disposed between the coupling nut and the sleeve, the second seal ring being in sealing engagement with the sleeve surface and the coupling nut surface, respectively.
5. The anti-electric bimetal thermometer of claim 4 wherein the sleeve opening is flared at one end, a first conical surface is provided on the outside of the sleeve opening at one end, a second conical surface is provided on the inside of the insulating nut, the first conical surface is disposed in face-to-face relationship with the second conical surface, and the first seal ring is disposed between the first conical surface and the second conical surface.
6. The anti-electric bimetal thermometer of claim 5 wherein the surface of the second conical surface is provided with a first annular groove, at least a portion of the first sealing ring is embedded in the first annular groove, and the first sealing ring protrudes out of the second conical surface.
7. The anti-electric bimetal thermometer of claim 5, wherein a third conical surface is arranged on the inner side of the opening of the sleeve, a fourth conical surface is arranged at one end of the connecting nut, which is close to the bimetal temperature measuring element, the third conical surface and the fourth conical surface are arranged face to face, and the second sealing ring is arranged between the third conical surface and the fourth conical surface.
8. The anti-electric bimetal thermometer of claim 7 wherein the surface of the fourth conical surface is provided with a second annular groove, at least a portion of the second sealing ring is embedded in the second annular groove, and the second sealing ring protrudes out of the fourth conical surface.
9. The anti-electric double metal thermometer according to claim 5, wherein a side surface of one end of the sleeve adjacent to the first conical surface is in threaded engagement with an inner wall of the insulating nut.
10. The anti-electric bimetal thermometer of claim 1 wherein the outer wall of the connecting nut is threadedly engaged with the inner wall of the insulating nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600737.1U CN219551711U (en) | 2023-03-23 | 2023-03-23 | Anti-electric bimetal thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600737.1U CN219551711U (en) | 2023-03-23 | 2023-03-23 | Anti-electric bimetal thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219551711U true CN219551711U (en) | 2023-08-18 |
Family
ID=87731622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320600737.1U Active CN219551711U (en) | 2023-03-23 | 2023-03-23 | Anti-electric bimetal thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219551711U (en) |
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2023
- 2023-03-23 CN CN202320600737.1U patent/CN219551711U/en active Active
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