CN213748814U

CN213748814U - Bimetallic thermometer with sheath

Info

Publication number: CN213748814U
Application number: CN202022945307.2U
Authority: CN
Inventors: 柯建敏
Original assignee: Tour Instruments Jiangsu Co ltd
Current assignee: Tour Instruments Jiangsu Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-20
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to the technical field of instruments and meters, and particularly provides a bimetallic thermometer with a sheath, which comprises a bearing sleeve and a probe rod inserted into the bearing sleeve, wherein the end part of the probe rod is provided with a probe, the probe rod is sleeved with a protective cover, the protective cover comprises a fixed section, an elastic section and a movable section, the protective cover is sleeved with a sealing sleeve, the sealing sleeve is sleeved on the bearing sleeve in a threaded manner, the fixed section is convexly provided with a limiting disc, the movable section is convexly provided with a limiting flange, the limiting flange can be clamped on the inner wall of the bearing sleeve, when the sealing sleeve is screwed on the bearing sleeve in a threaded manner, the fixed section can be limited between the sealing sleeve and the bearing sleeve by pressing the limiting disc, the length of the protective cover is reduced, the probe rod extends into a production system from the protective cover, when the probe rod is installed into the production system, the probe rod and the probe are both protected by the protective cover, therefore, collision between the probe of the probe rod and the bearing sleeve can be avoided, and the probe rod of the probe is protected.

Description

Bimetallic thermometer with sheath

Technical Field

The utility model relates to an instrument and meter technical field especially relates to a bimetal thermometer with sheath.

Background

In the production process, can monitor the temperature of production environment through the mode of installation thermometer, consequently the probe of thermometer need can be applicable to environment such as different acid-base high temperatures, for guaranteeing the life of thermometer, use corrosion-resistant and higher silicon products such as glass of hardness protection probe, and at user's installation, the silicon products on probe and the probe often can be because of misoperation's reason, and production system's pipeline bumps, lead to probe and probe rod to take place to break down, the detection performance of thermometer reduces and life shortens.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the probe and the probe rod on the thermometer can be damaged due to collision when being installed.

The utility model provides a technical scheme that its technical problem adopted is: a bimetal thermometer with a sheath is used for monitoring the real-time monitoring of the temperature in a production system, the bimetal thermometer comprises a bearing sleeve installed on the production system and a probe rod inserted into the bearing sleeve, the probe rod extends into the end part of the production system and is provided with a probe, a protective cover is sleeved on the probe rod and comprises a fixed section, an elastic section and a movable section, a sealing sleeve is sleeved outside the protective cover, the sealing sleeve is in threaded matching with the bearing sleeve and is provided with a limiting disc, the movable section is provided with a limiting flange, the limiting flange can be clamped on the inner wall of the bearing sleeve, when the sealing sleeve is screwed on the bearing sleeve, the limiting disc can be pressed to limit the fixed section between the sealing sleeve and the bearing sleeve, the fixed section presses and holds the elastic section to contract, the length of the protective cover is reduced, and the probe extends into the production system from the protective cover.

Furthermore, the inner wall of the bearing sleeve is provided with a propping step, the propping step corresponds to the limiting flange, and the protective cover is clamped to the propping step through the limiting flange.

Furthermore, it has sealed step to open on the inner wall of bearing the sleeve, protruding sealed flange that is equipped with still on the fixed section, sealed flange with sealed step corresponds, the protection casing alternates to back in the bearing the sleeve, sealed flange joint extremely on the sealed step.

Further, a sealing ring is arranged between the sealing step and the sealing flange, and the sealing flange presses the sealing ring onto the sealing step.

Furthermore, the sealing step is arranged on the end face of the bearing sleeve, the abutting step is arranged inside the sealing step, and the abutting step is arranged close to the production system.

Furthermore, the end part of the sealing sleeve is inwards provided with a cover plate in an inward protruding mode, and the cover plate can be attached to the limiting disc.

Furthermore, a nut is arranged on the end face of the sealing sleeve, and the nut is arranged on the end face, facing the outer side of the sealing sleeve, of the cover plate.

Furthermore, the elastic section is a spring tube, and two ends of the elastic section are respectively and fixedly connected to the fixed section and the movable section.

Furthermore, the bimetal thermometer also comprises a meter box, wherein the end part of the probe rod, which is far away from the probe, extends into the meter box, and the probe is communicated into the meter box through the probe rod.

The beneficial effects of the utility model are that, at the in-process of installation thermometer, when the protection casing was followed the probe rod and is stretched into the bearing sleeve of installing on production system, the restriction flange of protection casing joint in advance is on bearing sleeve's inner wall, and when further screwing tight sealing sleeve, sealing sleeve and the spacing dish of bearing sleeve centre gripping suppression, hold down in sealing sleeve's pressure, the elastic segment receives the extrusion shrink of canned paragraph, thereby change the length of the relative probe rod of protection casing, stretch into production system in the probe follow protection casing on the probe rod, when installation probe to production system, probe rod and probe are under the protection of protection casing, can avoid and bear the collision between the sleeve, thereby improve the detection performance and increase of service life of thermometer.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view of a bimetallic thermometer of the present invention in use in a production system;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

in the figure: the double-metal thermometer comprises a sheathed double-metal thermometer 100, a production system 200, a bearing sleeve 10, a probe 20, a watch box 30, a sealing step 110, a holding step 120, a probe 210, a protective cover 220, a sealing sleeve 230, a locking component 240, a fixed section 221, an elastic section 222, a movable section 223, a limiting disc 224, a sealing flange 225, a sealing ring 226, a limiting flange 227, a cover plate 231, a nut 232, a holding ring 241, a bearing block 242, a moving block 243, a linkage screw 244, a linkage pin 245, a sliding groove 246, a rotating wheel 248, a limiting groove 247 and a holding nut 249.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

As shown in fig. 1 to 4, the present invention provides a sheathed bimetallic thermometer 100 for monitoring the real-time temperature in a production system 200, wherein the sheathed bimetallic thermometer 100 comprises a bearing sleeve 10 installed on the production system 200, a probe rod 20 inserted into the bearing sleeve 10 and a watch box 30 installed at the end of the probe rod 20.

The bearing sleeve 10 is preferably welded to the production system 200 in a welding manner, an inner cavity of the bearing sleeve 10 is communicated with the production system 200, the bearing sleeve 10 is provided with a sealing step 110 and a supporting step 120, the sealing step 110 is arranged on an end face of the bearing sleeve 10, the supporting step 120 is arranged inside the sealing step 110, and the supporting step 120 is arranged close to the production system 200.

The probe rod 20 is inserted into the bearing sleeve 10, the probe 210 is arranged at the inner end part of the bearing sleeve 10 at the probe rod 20, the end part of the probe rod 20 far away from the probe 210 is inserted into the meter box 30, the probe 210 detects the ambient temperature in the production system 200 in real time, the detection data of the probe 210 is transmitted to the meter box 30 through the probe rod 20, and the meter box 30 can display specific detection data, so that the real-time monitoring of the temperature in the production system 200 is realized.

Preferably, an electronic element (not shown) is disposed in the case 30, a thermistor with type pt100 is used as a detection element in the probe 210, the detection element is electrically connected to the electronic element in the case 30 through the probe 20, the resistivity in the probe 210 changes due to the change of the ambient temperature, the change is transmitted to the electronic element in the case 30 through the probe 30, and the electronic element amplifies the change and displays the change in a digital display manner or a pointer rotation manner.

Preferably, a movement (not shown) is disposed in the case 20, the probe 210 contains a heat transfer liquid such as mercury, the heat transfer liquid can drive the movement to operate through the probe rod 20, so as to show the ambient temperature of the probe 210, the heat transfer liquid is a liquid sensitive to temperature, i.e., having a low evaporation point, and when the heat transfer liquid expands due to heating or contracts due to cooling, the volume change of the heat transfer liquid can be transmitted to the movement through the probe rod 20, so as to drive the movement to operate, so as to show the temperature change in the production system 200.

The probe 20 is sleeved with a protective cover 220, the protective cover 220 is sleeved with a sealing sleeve 230, and preferably, the sealing sleeve 230 is provided with a locking assembly 240. The position of the shield 220 relative to the probe rod 20 is restricted by the clamping action of the sealing sleeve 230 and the carrier sleeve 10, and the position of the sealing sleeve 230 relative to the carrier sleeve 10 can be fixed after the locking assembly 240 is operated.

As shown in fig. 4, the protective cover 220 is a sleeve-shaped structure, the protective cover 220 is slidably sleeved on the probe rod 20, the protective cover 220 can be inserted into the bearing sleeve 10 along with the probe rod 20, and the protective cover 220 includes a fixed section 221, an elastic section 222, and a movable section 223.

The fixing section 221 abuts against the end face of the bearing sleeve 10, the fixing section 221 is provided with a limiting disc 224 in a protruding manner, the limiting disc 224 corresponds to the end face of the bearing sleeve 10, and when the fixing section 221 penetrates through the bearing sleeve 10 along with the probe rod 20, the limiting disc 224 can abut against the end face of the bearing sleeve 10. The outer side wall of the fixing section 221 is further provided with a sealing flange 225 in a protruding manner, the sealing flange 225 is disposed below the limiting disc 224, the sealing flange 225 corresponds to the sealing step 110, when the limiting disc 224 abuts against the end surface of the bearing sleeve 10, the sealing flange 225 can abut against the sealing step 110, preferably, a sealing ring 226 is further disposed between the sealing flange 225 and the sealing step 110, and under the clamping of the sealing flange 225 and the sealing step 110, the sealing ring 226 can fill a gap between the sealing flange 225 and the sealing step 110. The movable section 223 is further provided with a limiting flange 227 in a protruding manner, the limiting flange 227 corresponds to the abutting step 120, and after the movable section 223 is inserted into the bearing sleeve 10, the limiting flange 227 on the movable section 223 can abut against the abutting step 120, so that the movable section 223 is limited on the bearing sleeve 10. The elastic section 222 is preferably a spring tube, the elastic section 222 is fixedly connected to the limiting flange 227 and the fixed section 221, and after the protection cover 220 is inserted into the bearing sleeve 10, the movable section 223 is pressed into the protection cover 220 under the abutting action of the elastic section 222.

The sealing sleeve 230 is fixedly sleeved on the bearing sleeve 10 in a threaded manner, and the end of the sealing sleeve 230 is provided with a cover plate 231 protruding inwards, when the sealing sleeve 230 is screwed onto the bearing sleeve 10, the cover plate 231 can be abutted against the limiting disc 224, under the clamping and limiting action of the cover plate 231 and the end of the bearing sleeve 10, the shield 220 can be initially limited in the bearing sleeve 10, and in the further screwing process of the sealing sleeve 230, the limiting flange 227 on the movable section 223 in the shield 220 is abutted against the abutting step 120 in advance, under the pressing of the movable section 230, the elastic section 222 is compressed, and the probe 210 extends out of the movable section 230 and extends into the production system 200.

Preferably, a nut 232 is provided on an end face of the sealing sleeve 230, the nut 232 is fixedly mounted on an end face of the cover plate 231 facing the outside of the sealing sleeve 230, and the sealing sleeve 230 can be screwed to the carrier sleeve 10 by the nut 232.

As shown in fig. 2, the locking assembly 240 includes an abutting ring 241 mounted on the cover plate 231, two bearing blocks 242 symmetrically mounted on the abutting ring 241, a moving block 243 slidably disposed on the bearing block 242, a linkage screw 244 corresponding to the moving block 243 and fixedly mounted on the protective cover 220, and a linkage pin 245 penetrating and connecting the linkage screw 244 and the moving block 243.

The holding ring 241 can be fixedly mounted on the nut 232, the two bearing blocks 242 are symmetrically arranged about the axis of the holding ring 241, a sliding groove 246 is formed in the bearing block 242, a limit groove 247 is further formed in the groove wall of the sliding groove 242, the moving block 243 is slidably received in the sliding groove 246, the moving block 243 is inserted into the linkage screw 244, after the moving block 243 is sleeved on the linkage screw 244, the moving block 243 is obliquely arranged between the bearing block 242 and the protective cover 220, rotating wheels 248 are fixedly mounted on two sides of the moving block 243, the rotating wheels 248 are received in the limit groove 247, and under the limit of the rotating wheels 248, the moving block 243 cannot be separated from the sliding groove 246 in the sliding process. After the moving block 243 is sleeved on the linkage screw 244 and the moving block 243 and the linkage screw 244 are aligned, the linkage pin 245 can relatively and rotatably penetrate and connect the moving block 243 and the linkage screw 244.

The linkage screw 244 is sleeved with a holding nut 249 in a matching manner, after the holding nut 249 is screwed along the linkage screw 244, the movable block 243 can be pressed and held to be changed from an inclined state relative to the bearing block 242 to a parallel state, in the changing process, the movable block 243 can lift the protective cover 220 towards the direction of the watch box 30 through the linkage pin 245, and meanwhile, the movable block 243 can rotate around the linkage pin 245. When the protection cover 220 moves towards the direction of the watch box 30, the attaching force between the limiting disc 224 and the cover plate 231 on the protection cover 220 is increased, so that the sealing performance between the protection cover 220 and the sealing sleeve 230 can be improved, and the medium leakage in the production system 200 is avoided.

When the sheathed bimetallic thermometer 100 is installed, the bearing sleeve 10 is welded to the production system, then the probe rod 20 with the protective cover 220 and the probe head 210 can be inserted into the production system 200, then the sealing sleeve 230 is screwed onto the bearing sleeve 10 through the nut 232, the fixed section 221 of the protective cover 220 is pressed onto the bearing sleeve 10 under the pressing action of the cover plate 231, and after the fixed section 222 is compressed, the probe head 210 and the probe rod 20 are extended from the movable section 223 until the probe head 210 is inserted into the production system 200, so as to monitor the temperature of the production system 200. Further, the retaining nut 249 is screwed on the linkage screw 244, and under the pressing action of the retaining screw 249, the inclined state of the moving block 243 is changed, and the moving block 243 and the linkage pin 245 lift the protective cover 220 toward the watch box 30 until the protective cover 220 and the cover plate 231 are further attached to each other, so that the sealing performance between the sealing sleeve 230 and the bearing sleeve 10 is improved.

In the above installation process, the protection shield 220 is sleeved outside the probe rod 20, the protection shield 220 enters the bearing sleeve 10 along with the probe rod 20, the fixed section 221 of the protection shield 220 is limited on the end surface of the bearing sleeve 10 through the limiting disc 224, the movable section 223 of the protection shield 220 is limited on the abutting step 120 through the limiting flange 227, and in the reduction process of the pressing fixed section 222, the probe 210 can extend into the production system 200 from the protection shield 220, that is, before the probe 210 extends into the production system 200, the protection shield 220 covers the probe rod, so that collision between the probe rod 20 and the bearing sleeve 10 can be avoided, and thus safe installation of the probe rod 20 and the probe 210 can be ensured.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A bimetallic thermometer with sheath for real-time monitoring of temperature in a monitoring production system, characterized in that: the bimetal thermometer comprises a bearing sleeve mounted on the production system and a probe rod inserted into the bearing sleeve, the probe rod extends into the end of the production system and is provided with a probe, the probe rod is sleeved with a protective cover, the protective cover comprises a fixed section, an elastic section and a movable section, the protective cover is sleeved with a sealing sleeve, the sealing sleeve is sleeved with the bearing sleeve in a threaded manner, the fixed section is provided with a limit disc in an upward protruding manner, the movable section is provided with a limit flange in an upward protruding manner, the limit flange can be clamped on the inner wall of the bearing sleeve, when the sealing sleeve is screwed by threads on the bearing sleeve, the fixed section is limited between the sealing sleeve and the bearing sleeve by pressing the limit disc, the elastic section is pressed by the fixed section to shrink, and the length of the protective cover is reduced, the probe extends from the shield into the production system.

2. The sheathed bimetallic thermometer of claim 1, wherein: the inner wall of the bearing sleeve is provided with a propping step, the propping step corresponds to the limiting flange, and the protective cover is clamped to the propping step through the limiting flange.

3. The sheathed bimetallic thermometer of claim 2, wherein: the inner wall of the bearing sleeve is provided with a sealing step, the fixed section is further convexly provided with a sealing flange, the sealing flange corresponds to the sealing step, the protective cover is inserted into the bearing sleeve, and then the sealing flange is clamped on the sealing step.

4. A sheathed bimetallic thermometer according to claim 3, characterised in that: and a sealing ring is arranged between the sealing step and the sealing flange, and the sealing flange presses the sealing ring onto the sealing step.

5. The sheathed bimetallic thermometer of claim 4, wherein: the sealing step is arranged on the end face of the bearing sleeve, the abutting step is arranged inside the sealing step, and the abutting step is arranged close to the production system.

6. The sheathed bimetallic thermometer of claim 1, wherein: the end part of the sealing sleeve is inwards provided with a cover plate in a protruding mode, and the cover plate can be attached to the limiting disc.

7. The sheathed bimetallic thermometer of claim 6, wherein: be equipped with the nut on sealing sleeve's the terminal surface, the nut sets up the apron orientation on the terminal surface in the sealing sleeve outside.

8. The sheathed bimetallic thermometer of claim 1, wherein: the elastic section is a spring tube, and two ends of the elastic section are fixedly connected to the fixed section and the movable section respectively.

9. The sheathed bimetallic thermometer of claim 1, wherein: the probe comprises a probe rod and a probe, and is characterized by further comprising a meter box, wherein the end part of the probe rod, far away from the probe, extends into the meter box, and the probe is communicated into the meter box through the probe rod.