CN217845449U

CN217845449U - Thermocouple calibrating device

Info

Publication number: CN217845449U
Application number: CN202221537185.6U
Authority: CN
Inventors: 韩海桢; 徐延执; 冯明波; 包妍; 江萍; 陈杰
Original assignee: Fangsuo Metrology Testing Zhejiang Co ltd
Current assignee: Fangsuo Metrology Testing Zhejiang Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-18
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a thermocouple calibrating installation, including thermocouple calibrating furnace, one side of thermocouple calibrating furnace be provided with the support frame, the support frame include base, dead lever, sleeve and layer board, the lower extreme of dead lever with base fixed connection, the sleeve cover in the dead lever on, telescopic lateral surface on be provided with screw and bolt, the bolt pass behind the screw butt in the lateral surface of dead lever on, the layer board fixed set up in telescopic top, the layer board be used for putting the thermocouple bundle; the advantage is that the suitability is better.

Description

Thermocouple calibrating device

Technical Field

The utility model belongs to the technical field of the industrial instrument calibration, especially, relate to a thermocouple calibrating installation.

Background

Thermocouples are commonly used temperature measuring elements in temperature measuring instruments, and need to be periodically verified after factory inspection or use for a period of time to ensure the accuracy of measurement. At present, a thermocouple verification furnace is generally adopted for verifying a thermocouple, when the thermocouple is verified, a to-be-detected thermocouple and a standard thermocouple are bound into a thermocouple bundle, then one end of the thermocouple bundle extends into the thermocouple verification furnace, the other end of the thermocouple bundle is supported by a supporting frame, the other end of the thermocouple bundle is prevented from being suspended, and the thermocouple bundle is ensured to be located on the same axis.

The conventional support frame has a single structure, the height of the support frame is fixed, although the structures of thermocouples in the market are basically the same, the wire diameters of different thermocouples have certain difference, and the support frames with different heights are required to be matched when the thermocouples with different wire diameters are detected, so that the conventional support frame has an improvement space.

Disclosure of Invention

The utility model aims to solve the technical problem that a thermocouple calibrating installation is provided, the suitability is better.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a thermocouple calibrating installation, includes thermocouple calibration furnace, one side of thermocouple calibration furnace be provided with the support frame, the support frame include base, dead lever, sleeve and layer board, the lower extreme of dead lever with base fixed connection, the muffjoint in the dead lever on, telescopic lateral surface on be provided with screw and bolt, the bolt pass screw back butt be in the lateral surface of dead lever on, the layer board fixed set up telescopic top, the layer board be used for putting the thermocouple bundle.

The layer board include along the bottom plate that the horizontal direction extends and distribute two curb plates of the bottom plate left and right sides, be located the left the curb plate from the right side left side and tilt up the setting, be located the right side the curb plate from the left side right side and tilt up the setting, the bottom plate with two the curb plate between form big-end-up's opening. In the structure, the thermocouple bundle cannot sway left and right when placed on the bottom plate through the arrangement of the openings with the large upper part and the small lower part, and the stability is good.

And the side plates are provided with locking assemblies for limiting the thermocouple bundle in the opening so as to further improve the structural stability.

The locking assembly comprises an installation block with a guide hole, a guide post, a pressing plate and a compression spring, the installation block is fixedly arranged on the side plate, the guide hole faces the bottom plate, the lower end of the guide post is fixedly connected with the pressing plate, the guide hole is arranged at the upper end of the guide post in a penetrating mode, the compression spring is sleeved on the guide post, and the compression spring is located between the pressing plate and the installation block. When the thermocouple bundle fixing device is used, the guide posts are pulled upwards firstly, the compression springs are compressed, the pressing plate is separated from the bottom plate, then the thermocouple bundle is placed on the bottom plate, the guide posts are released, the pressing plate moves downwards through resilience force of the compression springs and is pressed on the thermocouple bundle to be fixed, and operation is simple.

The mounting block is positioned at the top of the side plate.

The pressing plate is an arc-shaped plate, the convex cambered surface of the arc-shaped plate is fixedly connected with the lower ends of the guide posts, and the concave cambered surface of the arc-shaped plate faces the bottom plate.

The upper end of guide post be provided with the handle to conveniently pull up the guide post.

The side of the fixed rod is provided with scale marks extending along the up-down direction so as to confirm the overall height of the support frame quickly.

The supporting plate is arranged in a V shape or a U shape.

Compared with the prior art, the utility model has the advantages of the muffjoint is on the dead lever, and the sleeve can slide from top to bottom to lock through the bolt, so that adjust the height at layer board place, thereby be applicable to the thermocouple of different line footpaths, the suitability is better, and it is also comparatively convenient to operate.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the middle supporting frame of the present invention;

fig. 3 is a schematic view of a partial structure of the middle support frame of the present invention.

In the figure: 1. a thermocouple verification furnace; 2. a support frame; 21. a base; 22. fixing the rod; 221. scale marks; 23. a sleeve; 231. a screw hole; 232. a bolt; 24. a support plate; 241. a base plate; 242. a side plate; 25. an opening; 3. a locking assembly; 31. mounting blocks; 311. a guide hole; 32. a guide post; 33. pressing a plate; 331. a convex cambered surface; 332. an inner concave cambered surface; 34. a compression spring; 35. a handle; 4. a thermocouple to be detected; 5. a standard thermocouple.

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 and 2, a thermocouple calibration device comprises a thermocouple calibration furnace 1, a support frame 2 is arranged on one side of the thermocouple calibration furnace 1, the support frame 2 comprises a base 21, a fixed rod 22, a sleeve 23 and a supporting plate 24, the lower end of the fixed rod 22 is fixedly connected with the base 21, the sleeve 23 is sleeved on the fixed rod 22, a screw hole 231 and a bolt 232 are arranged on the outer side surface of the sleeve 23, the bolt 232 penetrates through the screw hole 231 and then abuts against the outer side surface of the fixed rod 22, the supporting plate 24 is fixedly arranged at the top end of the sleeve 23, and the supporting plate 24 is used for placing a thermocouple bundle.

Before verification, the height of the sleeve 23 is adjusted and locked by the bolt 232, then a thermocouple bundle formed by bundling the detected thermocouple 4 and the standard thermocouple 5 extends into the thermocouple verification furnace 1, then the other end of the thermocouple bundle is placed on the supporting plate 24, and high-temperature cotton is filled between the furnace mouth of the thermocouple verification furnace 1 and the thermocouple bundle.

The second embodiment: as shown in fig. 1 and fig. 2, the rest of the embodiment is the same as the first embodiment, except that the supporting plate 24 includes a bottom plate 241 extending along the horizontal direction and two side plates 242 distributed at the left and right sides of the bottom plate 241, the side plate 242 at the left side is disposed obliquely from right to left and upward, the side plate 242 at the right side is disposed obliquely from left to right and upward, and an opening 25 with a large top and a small bottom is formed between the bottom plate 241 and the two side plates 242.

In the present embodiment, the side plate 242 is provided with the locking assembly 3 for restraining the thermocouple bundle within the opening 25.

Example three: as shown in fig. 2 and fig. 3, the remaining parts are the same as the embodiment, except that the locking assembly 3 includes a mounting block 31 having a guide hole 311, a guide post 32, a pressing plate 33 and a compression spring 34, the mounting block 31 is fixedly disposed on the side plate 242, the guide hole 311 faces the bottom plate 241, the lower end of the guide post 32 is fixedly connected with the pressing plate 33, the upper end of the guide post 32 penetrates through the guide hole 311, the compression spring 34 is sleeved on the guide post 32, and the compression spring 34 is located between the pressing plate 33 and the mounting block 31.

In this embodiment, the mounting block 31 is located at the top of the side plate 242.

In this embodiment, the pressing plate 33 is an arc-shaped plate, the outer convex arc surface 331 of the arc-shaped plate is fixedly connected with the lower end of the guiding column 32, and the inner concave arc surface 332 of the arc-shaped plate faces the bottom plate 241.

In this embodiment, the upper end of the guide post 32 is provided with a handle 35.

In this embodiment, the side surface of the fixing rod 22 is provided with a scale mark 221 extending in the up-down direction.

Example four: the rest of the embodiment is the same as the first embodiment, except that the supporting plate 24 is arranged in a V-shape or U-shape.

Claims

1. The utility model provides a thermocouple calibrating installation, includes thermocouple verification furnace, one side of thermocouple verification furnace be provided with the support frame, its characterized in that the support frame include base, dead lever, sleeve and layer board, the lower extreme of dead lever with base fixed connection, the muffjoint be in the dead lever on, telescopic lateral surface on be provided with screw and bolt, the bolt pass screw back butt be in the lateral surface of dead lever on, the layer board fixed set up telescopic top, the layer board be used for putting the thermocouple bundle.

2. The thermocouple calibration device according to claim 1, wherein the supporting plate comprises a bottom plate extending in a horizontal direction and two side plates distributed on the left and right sides of the bottom plate, the side plate on the left side is arranged to incline from right to left and upwards, the side plate on the right side is arranged to incline from left to right and upwards, and an opening with a large top and a small bottom is formed between the bottom plate and the two side plates.

3. A thermocouple verification device as claimed in claim 2, wherein said side plates are provided with locking means for restraining the bundle within said opening.

4. A thermocouple verification device as claimed in claim 3, wherein said locking assembly comprises a mounting block having a guide hole, a guide post, a pressure plate and a compression spring, said mounting block is fixedly disposed on said side plate, said guide hole faces said base plate, the lower end of said guide post is fixedly connected with said pressure plate, said guide hole is penetrated through the upper end of said guide post, said compression spring is sleeved on said guide post, said compression spring is located between said pressure plate and said mounting block.

5. A thermocouple verification device as claimed in claim 4, wherein said mounting block is located at the top of said side plates.

6. The thermocouple calibration device according to claim 4, wherein the pressing plate is an arc-shaped plate, an outer convex arc surface of the arc-shaped plate is fixedly connected with the lower end of the guide post, and an inner concave arc surface of the arc-shaped plate faces the bottom plate.

7. A thermocouple calibration device as claimed in claim 4 wherein the upper end of the guide post is provided with a handle.

8. A thermocouple calibration device as claimed in claim 2, wherein the fixing rod is provided with graduations extending in an up-down direction on a side surface thereof.

9. The thermocouple calibration device according to claim 1, wherein the support plate is disposed in a V-shape or a U-shape.