CN219416468U

CN219416468U - Temperature measuring device

Info

Publication number: CN219416468U
Application number: CN202320298910.7U
Authority: CN
Inventors: 龙占勇; 陈梓展; 林佳继; 刘群
Original assignee: Laplace Guangzhou Semiconductor Technology Co ltd
Current assignee: Laplace Guangzhou Semiconductor Technology Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-25
Anticipated expiration: 2033-02-23

Abstract

The utility model belongs to the technical field of detection equipment, and particularly discloses a temperature measuring device which comprises a telescopic mechanism, a temperature measuring mechanism and a guiding mechanism, wherein the telescopic mechanism is connected with the temperature measuring mechanism, the telescopic mechanism can drive the temperature measuring mechanism to move in a furnace body in a telescopic way, the guiding mechanism is connected with the telescopic mechanism, a moving track of a temperature measuring end of the temperature measuring mechanism can be limited through the guiding mechanism, the situation that the temperature measuring mechanism or/and the telescopic mechanism are extruded and even damaged due to the deviation of the temperature measuring mechanism or/and the telescopic mechanism in the telescopic moving process is avoided, meanwhile, the temperature measuring mechanism of the temperature measuring device can be freely telescopic, the operation is simple and convenient, the displacement of the temperature measuring mechanism is accurate, and a temperature signal is obtained.

Description

Temperature measuring device

Technical Field

The utility model relates to the technical field of detection equipment, in particular to a temperature measuring device.

Background

In order to measure the temperature in the furnace, a thermocouple is usually adopted as a temperature measuring device, however, the existing thermocouple is generally arranged in a protective sleeve, then the protective sleeve is fixedly arranged outside a furnace shell through a flange or threads, the extending length of the thermocouple in the furnace body is fixed, if the extending length of the thermocouple needs to be adjusted, the position of the thermocouple in the protective sleeve can be manually adjusted, or the connecting position of the protective sleeve and the furnace shell can be adjusted, so that the thermocouple is inconvenient in the actual temperature measuring process, and a certain danger exists. Therefore, in the prior art, thermocouples with telescopic mechanisms are arranged, so that the telescopic function of the thermocouples can be realized, but the problem of route deviation exists in the telescopic movement process of the thermocouples, the condition of extruding the thermocouples and the telescopic mechanisms can possibly occur, and the thermocouples or/and the telescopic mechanisms can be damaged in severe cases.

Therefore, a temperature measuring device is needed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a temperature measuring device, the length of a thermocouple penetrating into a furnace body can be adjusted, so that the temperature in the furnace body can be accurately detected, the problem of route deviation of the thermocouple in the telescopic movement process is avoided, and the displacement is accurate.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a temperature measuring device, comprising:

a temperature measuring mechanism;

the telescopic mechanism is connected with the temperature measuring mechanism and used for driving the temperature measuring mechanism to move in a telescopic way in the furnace body;

the guiding mechanism is connected with the telescopic mechanism and used for preventing the temperature measuring mechanism or/and the telescopic mechanism from deviating in the telescopic movement process.

Optionally, the temperature measuring device further comprises a fixing mechanism, one end of the fixing mechanism is connected with the furnace body, the other end of the fixing mechanism is connected with the fixing plate, and the temperature measuring end of the temperature measuring mechanism is slidably arranged in the fixing mechanism in a penetrating mode.

Optionally, fixed establishment includes sealed pipe box and fixed plate, temperature measurement mechanism's temperature measurement end slides wears to locate in the sealed pipe box, sealed pipe box one end is fixed in the furnace body, the other end with the fixed plate is connected, be equipped with first seal assembly in the sealed pipe box, first seal assembly cover is established on the temperature measurement mechanism, first seal assembly presss from both sides to establish sealed pipe box with between the temperature measurement mechanism, telescopic machanism guiding mechanism all with the fixed plate is connected.

Optionally, the first sealing component comprises a spring sealing ring, and the spring sealing ring is installed in the sealing pipe sleeve and sleeved on the temperature measuring mechanism.

Optionally, the first seal assembly further comprises a guide ring seat and a retainer ring which are sleeved on the temperature measuring mechanism, the retainer ring is clamped on the inner side wall of the seal pipe sleeve to compress the guide ring seat, a guide sleeve and a dust ring are installed in the guide ring seat, the guide sleeve and the dust ring are sleeved on the temperature measuring mechanism and clamped between the guide ring seat and the temperature measuring mechanism, and the dust ring is arranged on one side, close to the retainer ring, in the guide ring seat.

Optionally, the first sealing components are arranged in two groups, the two groups of the first sealing components are symmetrically arranged in the sealing pipe sleeve, and the two spring sealing rings in the two groups of the first sealing components are installed in the sealing pipe sleeve in opposite directions.

Optionally, a cooling runner is arranged inside the sealing pipe sleeve, a water inlet interface and a water outlet interface are arranged on the outer side wall of the sealing pipe sleeve, and the water inlet interface and the water outlet interface are communicated with the cooling runner.

Optionally, the temperature measuring mechanism includes thermocouple, movable pipe sleeve and second seal assembly, the thermocouple wears to establish in the movable pipe sleeve, just the movable pipe sleeve with fixed connection between the thermocouple, the second seal assembly sets up the thermocouple with between the movable pipe sleeve, the movable pipe sleeve slides and wears to establish in the fixed establishment, the thermocouple is close to fixed establishment's one end is the temperature measurement end.

Optionally, the telescopic mechanism comprises an air cylinder and a connecting plate, wherein the air cylinder is connected with the connecting plate, and the connecting plate is connected with the temperature measuring mechanism.

Optionally, guiding mechanism includes guide rail pole, linear bearing and stopper, the one end of guide rail pole with the fixed plate is connected, linear bearing slidable cover is established guide rail pole is last, just linear bearing fixes on the connecting plate, the stopper set up in guide rail pole is close to one side of connecting plate, the stopper can with linear bearing butt is avoided linear bearing is followed deviate from on the guide rail pole.

The beneficial effects of the utility model are as follows:

the utility model provides a temperature measuring device which comprises a telescopic mechanism, a temperature measuring mechanism and a guiding mechanism, wherein the telescopic mechanism is connected with the temperature measuring mechanism, the telescopic mechanism can drive the temperature measuring mechanism to move in a furnace body in a telescopic way, the guiding mechanism is connected with the telescopic mechanism, the moving track of the temperature measuring mechanism can be limited through the guiding mechanism, the temperature measuring mechanism can move along a set route accurately, the situation that the temperature measuring mechanism or/and the telescopic mechanism is extruded and even damaged due to deviation is avoided, meanwhile, the temperature measuring mechanism can stretch freely, a worker can adjust the depth of a temperature measuring end of the temperature measuring mechanism extending into the furnace body through the telescopic mechanism, and the displacement of the temperature measuring mechanism is accurately controlled, so that the temperature measuring mechanism can obtain more accurate temperature signals.

Drawings

FIG. 1 is a schematic diagram of a temperature measuring device and a furnace body provided in an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a temperature measurement device provided in an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partial enlarged view at B in FIG. 2;

FIG. 5 is a simplified force diagram of a temperature measurement device (when retracted) provided in an embodiment of the present utility model.

In the figure:

100. a fixing mechanism; 110. a fixing plate; 120. sealing the pipe sleeve; 121. a first connector; 122. a flange seal ring; 131. a spring seal ring; 132. a guide ring seat; 133. a retainer ring; 134. a guide sleeve; 135. a dust ring; 140. a water inlet port; 150. a water outlet interface;

200. a telescoping mechanism; 210. a connecting plate; 220. a cylinder; 230. a piston rod; 240. a second connector;

300. a temperature measuring mechanism; 310. a thermocouple; 320. a moving pipe sleeve; 331. pressing the sleeve; 332. a pipe sleeve sealing ring; 340. a third connecting member; 350. a flat gasket;

400. a guide mechanism; 410. a guide rail rod; 420. a linear bearing; 430. a limiting block;

500. a furnace body.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-4, the present embodiment provides a temperature measuring device, the temperature measuring device includes a telescopic mechanism 200, a temperature measuring mechanism 300 and a guiding mechanism 400, wherein the telescopic mechanism 200 is connected with the temperature measuring mechanism 300, the temperature measuring end of the temperature measuring mechanism 300 is slidably inserted into the furnace body 500, the telescopic mechanism 200 is used for driving the temperature measuring mechanism 300 to move telescopically in the furnace body 500, the guiding mechanism 400 is connected with the telescopic mechanism 200, the guiding mechanism 400 is used for preventing the temperature measuring mechanism 300 or/and the telescopic mechanism 200 from shifting during the telescopic movement, so that the guiding mechanism 400 defines a movement track of the temperature measuring end of the temperature measuring mechanism 300, so that the temperature measuring mechanism can move accurately along a given path, the situation that the temperature measuring mechanism 300 or/and the telescopic mechanism 200 is extruded without shifting, even the situation that the temperature measuring mechanism 300 or/and the telescopic mechanism 200 are damaged, meanwhile, since the temperature measuring end of the temperature measuring mechanism 300 can be freely telescopic mechanism 200 can adjust the depth that the temperature measuring end of the temperature measuring mechanism 300 stretches into the furnace body 500, and accurately control the displacement of the temperature measuring mechanism 300, the operation is simple and convenient, so that the temperature measuring mechanism 300 obtains more accurate temperature signals, and meanwhile, the temperature measuring mechanism 300 can be driven to stretch out of the furnace body 500 from the temperature measuring mechanism under the condition that the temperature measuring signal detection condition that the temperature measuring mechanism 200 can not be damaged, and the temperature measuring mechanism 300 is damaged when the temperature measuring mechanism is driven to stretch inside the furnace body 500.

Further, the temperature measuring device in this embodiment further includes a fixing mechanism 100, one end of the fixing mechanism 100 is connected to the furnace body 500, and the temperature measuring end of the temperature measuring mechanism 300 is slidably inserted into the fixing mechanism 100. Specifically, with continued reference to fig. 3, the fixing mechanism 100 in this embodiment includes a sealing sleeve 120 and a fixing plate 110, the temperature measuring end of the temperature measuring mechanism 300 is slidably disposed in the sealing sleeve 120, one end of the sealing sleeve 120 is fixed to the furnace body 500, the other end is connected to the fixing plate 110, and the telescopic mechanism 200 and the guiding mechanism 400 are both disposed on the fixing plate 110.

As an alternative, the furnace body 500 is provided with a flange, and one end of the sealing sleeve 120 is fixed on the flange through the first connecting piece 121, for example, the first connecting piece 121 can be selected from a screw, a bolt, etc., so that the disassembly or the installation of the worker is convenient. The other end of the sealing sleeve 120 is detachably connected to the fixing plate 110. Illustratively, the end surface of the sealing sleeve 120 far away from the furnace body 500 is provided with a threaded hole, correspondingly, a countersink is arranged at a corresponding position on the fixing plate 110, and a screw or a bolt can pass through the countersink and then be fixed in the threaded hole on the sealing sleeve 120, so that the sealing sleeve 120 is detachably connected with the fixing plate 110, and the sealing sleeve is convenient to install and detach and has higher assembly efficiency. More preferably, in order to ensure the sealing performance between the sealing sleeve 120 and the flange, a flange sealing ring 122 is further arranged between the sealing sleeve 120 and the flange. For example, in some embodiments, a first groove is provided on an end surface of the sealing sleeve 120 near the side of the furnace body 500, and a flange seal 122 is disposed in the first groove, where the end surface of the sealing sleeve 120 abuts against an end surface of the flange, and the flange seal 122 seals the sealing sleeve 120 and the flange, so as to ensure the reliability of the sealing.

Further, a first sealing component is arranged in the sealing pipe sleeve 120, the first sealing component is sleeved on the temperature measuring mechanism 300, the first sealing component is clamped between the sealing pipe sleeve 120 and the temperature measuring mechanism 300, and good dynamic sealing between the temperature measuring mechanism 300 and the sealing pipe sleeve 120 can be achieved through the first sealing component, so that air leakage of the furnace body 500 or external air entering the furnace body 500 is avoided.

As an alternative, the first sealing assemblies in this embodiment are arranged in two groups, and the two groups of first sealing assemblies are symmetrically arranged at two ends of the sealing sleeve 120. For example, the inner side walls of the two ends of the sealing tube sleeve 120 are respectively provided with mounting grooves, and the two groups of first sealing assemblies are respectively arranged in the two mounting grooves. One set of first seal assemblies is disposed on a side adjacent to the mounting plate 110 and the other set of first seal assemblies is disposed on a side adjacent to the flange. Each group of first sealing components comprises a guide ring seat 132 and a retainer ring 133 which are sleeved on the temperature measuring mechanism 300, a limiting groove is formed in the bottom wall of the mounting groove, and the retainer ring 133 is clamped in the limiting groove, so that the guide ring seat 132 can be compressed, and the guide ring seat 132 is prevented from falling out of the mounting groove. Further, the guide sleeve 134 is installed in the guide ring seat 132, the guide sleeve 134 is sandwiched between the guide ring seat 132 and the temperature measuring mechanism 300, the temperature measuring mechanism 300 can be guided by the guide sleeve 134, and the temperature measuring mechanism 300 can smoothly move in the fixing mechanism 100 due to good lubricity of the guide sleeve 134. Illustratively, the guide sleeve 134 may be made of teflon or brass material, so as to ensure high temperature resistance of the guide sleeve 134, so that the guide sleeve can be used normally in a high temperature environment.

Further, each group of first sealing components comprises a dust ring 135, the dust ring 135 is installed in the guide ring seat 132 and sleeved on the temperature measuring mechanism 300, and the dust ring 135 is arranged on one side, close to the retainer ring 133, of the guide ring seat 132. The dust ring 135 can prevent dust in air from entering the sealing sleeve, and meanwhile, the sintered graphite dust inside the furnace body 500 can be prevented from overflowing, so that the sealing reliability is further ensured.

More preferably, each group of the first sealing assemblies further comprises a spring sealing ring 131, the spring sealing ring 131 is installed in the sealing sleeve 120 and sleeved on the temperature measuring mechanism 300, and the spring sealing ring 131 is located on one side of the guide ring seat 132, which is far away from the retainer ring 133. Further, the installation directions of the spring sealing rings 131 of the two groups of first sealing assemblies are opposite, so that the good dynamic sealing between the sealing sleeve 120 and the temperature measuring mechanism 300 is ensured when the furnace body 500 is in vacuum or positive pressure, and reliable sealing can be respectively realized under both conditions, and air leakage is prevented.

With continued reference to fig. 1, in this embodiment, a cooling flow channel is disposed inside the sealing tube sleeve 120, a water inlet port 140 and a water outlet port 150 are disposed on an outer side wall of the sealing tube sleeve 120, the water inlet port 140 and the water outlet port 150 are both communicated with the cooling flow channel, and a cooling medium enters the cooling flow channel through the water inlet port 140 and then flows out from the water outlet port 150. The cooling medium can exchange heat with the sealing sleeve 120, the temperature measuring mechanism 300 and the first sealing assembly, so that the temperature of the furnace body 500 transmitted from the temperature measuring mechanism 300 is greatly reduced, the sealing sleeve 120, the temperature measuring mechanism 300 and the first sealing assembly are well cooled, parts are protected, and the service life is prolonged.

With continued reference to fig. 2 and 4, the telescopic mechanism 200 in this embodiment includes an air cylinder and a connecting plate 210, the cylinder body 220 of the air cylinder and the fixed end of the temperature measuring mechanism 300 are both disposed on the connecting plate 210, the air cylinder drives the connecting plate 210 to move, and the connecting plate 210 further drives the temperature measuring mechanism 300 to move. Specifically, the piston rod 230 of the cylinder and the temperature measuring end of the temperature measuring mechanism 300 are all arranged through the connecting plate 210, the piston rod 230 of the cylinder is fixedly connected with the fixing plate 110, when the piston rod 230 of the cylinder is contracted, the cylinder can provide enough power to overcome the pressure inside the furnace body 500, and further the temperature measuring end of the temperature measuring mechanism 300 is driven to stretch into the furnace body 500, so that the free movement of the temperature measuring end is realized. Because the displacement of the piston rod 230 of the air cylinder is easy to control, and the displacement of the piston rod 230 is equal to the displacement of the temperature measuring end of the temperature measuring mechanism 300, the length of the temperature measuring end extending into the furnace body 500 can be accurately controlled, and the temperature measurement is accurate. Illustratively, the piston rod 230 of the cylinder may be fixed to the fixing plate 110 by a second connector 240, for example, an internal threaded hole is formed in the fixing plate 110 corresponding to the position of the piston rod 230 of the cylinder, an external thread matching the internal threaded hole is formed in the piston rod 230 of the cylinder, and the second connector 240 can lock the piston rod 230 of the cylinder to the fixing plate 110.

Further, the temperature measuring mechanism 300 in the embodiment includes a thermocouple 310, a moving pipe sleeve 320 and a second sealing assembly, the thermocouple 310 is inserted into the moving pipe sleeve 320, the moving pipe sleeve 320 is fixedly connected with the thermocouple 310, the second sealing assembly is disposed between the thermocouple 310 and the moving pipe sleeve 320, the moving pipe sleeve 320 is slidably inserted into the fixing mechanism 100, and one end of the thermocouple 310 close to the fixing mechanism 100 is a temperature measuring end of the temperature measuring mechanism 300. The thermocouple 310 and the movable tube sleeve 320 are fixed ends of the temperature measuring mechanism 300 at one end far away from the fixing mechanism 100, an external thread is arranged at the end, far away from the fixing mechanism 100, of the movable tube sleeve 320, a limiting step is arranged at the end, a first through hole is arranged on the connecting plate 210, after one end, provided with the external thread, of the movable tube sleeve 320 passes through the first through hole, the limiting step is abutted to the connecting plate 210, and the movable tube sleeve 320 can be locked on the connecting plate 210 through the third connecting piece 340. For example, the third connecting member 340 may be a round nut, which can be screwed with external threads on the moving tube 320. In some embodiments, a flat gasket 350 may be further provided between the third connector 340 and the moving socket 320, thereby securing stability of fixation.

As an alternative, the second sealing assembly in this embodiment includes a plurality of press sleeves 331 and a plurality of sleeve sealing rings 332 alternately arranged, and the press sleeves 331 are disposed at positions outermost at both ends. In this embodiment, three pressing sleeves 331 and two sleeve sealing rings 332 are taken as an example for illustration, the pressing sleeves 331, the sleeve sealing rings 332 and the pressing sleeves 331 are sequentially placed in the moving sleeve 320, and then the thermocouple 310 penetrates into the moving sleeve 320 to press the pressing sleeves 331, so that the thermocouple 310 and the moving sleeve 320 are fixed, and the tightness between the moving sleeve 320 and the thermocouple 310 can be ensured through the sleeve sealing rings 332 between the pressing sleeves 331, so that air leakage is avoided.

It should be noted that the connection plate 210 in this embodiment receives a large bending moment M during the movement of the piston rod 230 of the cylinder, and the force analysis thereof is shown in fig. 5. This movement of retracting the thermometric mechanism 300 is described herein as an example. When the temperature measuring mechanism 300 is retracted, the piston rod 230 of the cylinder is required to push the connecting plate 210 to move away from the fixed plate 110, at this time, the piston rod 230 provides an outward force, and the force directly acts on the connecting plate 210, that is, F1 shown in fig. 5, when the connecting plate 210 moves outward, the temperature measuring mechanism 300 is driven to move outward together, so that the temperature measuring mechanism 300 can apply a force to the connecting plate 210 in the opposite direction, that is, F2, F1 and F2 simultaneously act on the connecting plate 210, so as to form the bending moment M, and the bending moment M can deflect the piston rod 230 of the cylinder and the temperature measuring mechanism 300 during movement, thereby damaging the cylinder and the temperature measuring mechanism 300.

With continued reference to fig. 2, the guiding mechanism 400 in the present embodiment can eliminate the influence of the bending moment M on the movement of the cylinder and the temperature measuring mechanism 300, the guiding mechanism 400 is disposed on the fixed plate 110, and the guiding mechanism 400 is connected with the connecting plate 210 of the telescopic mechanism 200. Specifically, the guide mechanism 400 includes a guide rail rod 410, a linear bearing 420 and a limiting block 430, wherein one end of the guide rail rod 410 is connected with the fixing plate 110, the linear bearing 420 is slidably sleeved on the guide rail rod 410, the linear bearing 420 is fixed on the connecting plate 210, the limiting block 430 is disposed on one side of the guide rail rod 410, which is close to the connecting plate 210, and the limiting block 430 can be abutted with the linear bearing 420 to prevent the linear bearing 420 from falling out of the guide rail rod 410. Through connecting plate 210 and linear bearing 420 fixed connection, linear bearing 420 and guide rail pole 410 sliding connection to can transmit moment of flexure M to guide rail pole 410, so as to guarantee that cylinder and temperature measuring mechanism 300 can accurately follow predetermined orbit motion, the skew can not appear and lead to extrusion temperature measuring mechanism 300, even damage temperature measuring mechanism 300 and the condition of cylinder.

Specifically, one end of the guide rail rod 410 can be fixed on the fixed plate 110 through a screw or a bolt, the other end of the guide rail rod 410 is provided with a limiting block 430, the limiting block 430 is provided with a round nut, one side of the guide rail rod 410, which is close to the connecting plate 210, is provided with external threads, the round nut is in threaded connection with the external threads on the guide rail rod 410, the round nut can be abutted with the linear bearing 420, and the worker can conveniently detach and install the guide rail rod by setting the limiting block 430 as the round nut.

The specific working steps are as follows:

when the temperature measuring mechanism 300 needs to extend into the furnace body 500 or be pulled out of the furnace body 500, the temperature measuring mechanism 300 can be driven by the piston rod 230 of the air cylinder to realize expansion and contraction. For example, when the temperature inside the furnace body 500 is lower than 1200 ℃, the piston rod 230 of the air cylinder is retracted, the telescopic mechanism 200 and the temperature measuring mechanism 300 approach the furnace body 500 along the arrangement direction of the guide rail rod 410, and the thermocouple 310 passes through the sealing sleeve 120 under the protection of the moving sleeve 320 and stretches into the furnace body 500 for measuring the temperature;

when the temperature inside the furnace body 500 is higher than 1200 ℃, the piston rod 230 of the air cylinder stretches out, the telescopic mechanism 200 and the temperature measuring mechanism 300 are far away from the furnace body 500 along the setting direction of the guide rail rod 410, the thermocouple 310 passes through the sealing sleeve 120 again under the protection of the movable sleeve 320, leaves the inside of the furnace body 500, and can accurately adjust the stretching length of the thermocouple 310 inside the furnace body 500 in real time according to the temperature inside the furnace body 500 by enabling the temperature measuring mechanism 300 to freely stretch out and draw back, so that the aims of protecting the thermocouple 310 and utilizing the thermocouple 310 to accurately measure the temperature are fulfilled.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A temperature measurement device, comprising:

a temperature measuring mechanism (300);

the telescopic mechanism (200) is connected with the temperature measuring mechanism (300) and is used for driving the temperature measuring mechanism (300) to move in a telescopic way in the furnace body (500);

and the guide mechanism (400) is connected with the telescopic mechanism (200), and the guide mechanism (400) is used for preventing the temperature measuring mechanism (300) or/and the telescopic mechanism (200) from shifting in the telescopic movement process.

2. The temperature measuring device according to claim 1, further comprising a fixing mechanism (100), wherein one end of the fixing mechanism (100) is connected with the furnace body (500), and a temperature measuring end of the temperature measuring mechanism (300) is slidably arranged in the fixing mechanism (100).

3. The temperature measurement device according to claim 2, wherein the fixing mechanism (100) comprises a sealing sleeve (120) and a fixing plate (110), a temperature measurement end of the temperature measurement mechanism (300) is slidably arranged in the sealing sleeve (120), one end of the sealing sleeve (120) is fixed on the furnace body (500), the other end of the sealing sleeve is connected with the fixing plate (110), a first sealing assembly is arranged in the sealing sleeve (120), the first sealing assembly is sleeved on the temperature measurement mechanism (300), the first sealing assembly is clamped between the sealing sleeve (120) and the temperature measurement mechanism (300), and the telescopic mechanism (200) and the guide mechanism (400) are connected with the fixing plate (110).

4. A temperature measuring device according to claim 3, characterized in that the first sealing assembly comprises a spring sealing ring (131), the spring sealing ring (131) being mounted in the sealing sleeve (120) and being sleeved on the temperature measuring mechanism (300).

5. The temperature measurement device according to claim 4, wherein the first sealing assembly further comprises a guide ring seat (132) and a retainer ring (133) which are sleeved on the temperature measurement mechanism (300), the retainer ring (133) is clamped on the inner side wall of the sealing sleeve (120) to tightly press the guide ring seat (132), a guide sleeve (134) and a dust ring (135) are installed in the guide ring seat (132), the guide sleeve (134) and the dust ring (135) are sleeved on the temperature measurement mechanism (300) and clamped between the guide ring seat (132) and the temperature measurement mechanism (300), and the dust ring (135) is arranged on one side, close to the retainer ring (133), in the guide ring seat (132).

6. The temperature measuring device according to claim 5, wherein the first sealing assemblies are arranged in two groups, the two groups of the first sealing assemblies are symmetrically arranged in the sealing sleeve (120), and two spring sealing rings (131) in the two groups of the first sealing assemblies are installed in the sealing sleeve (120) in opposite directions.

7. A temperature measuring device according to claim 3, wherein a cooling flow passage is arranged inside the sealing sleeve (120), a water inlet interface (140) and a water outlet interface (150) are arranged on the outer side wall of the sealing sleeve (120), and the water inlet interface (140) and the water outlet interface (150) are both communicated with the cooling flow passage.

8. The temperature measurement device according to any one of claims 2-7, wherein the temperature measurement mechanism (300) comprises a thermocouple (310), a mobile pipe sleeve (320) and a second sealing assembly, the thermocouple (310) is arranged in the mobile pipe sleeve (320) in a penetrating manner, the mobile pipe sleeve (320) is fixedly connected with the thermocouple (310), the second sealing assembly is arranged between the thermocouple (310) and the mobile pipe sleeve (320), the mobile pipe sleeve (320) is arranged in the fixing mechanism (100) in a sliding manner, and one end, close to the fixing mechanism (100), of the thermocouple (310) is the temperature measurement end.

9. The temperature measurement device according to any one of claims 3-7, wherein the telescopic mechanism (200) comprises a cylinder and a connection plate (210), the cylinder being connected to the connection plate (210), the connection plate (210) being connected to the temperature measurement mechanism (300).

10. The temperature measurement device according to claim 9, wherein the guide mechanism (400) comprises a guide rail rod (410), a linear bearing (420) and a limiting block (430), one end of the guide rail rod (410) is connected with the fixing plate (110), the linear bearing (420) is slidably sleeved on the guide rail rod (410), the linear bearing (420) is fixed on the connecting plate (210), the limiting block (430) is arranged on one side, close to the connecting plate (210), of the guide rail rod (410), and the limiting block (430) can be abutted with the linear bearing (420) so as to prevent the linear bearing (420) from being separated from the guide rail rod (410).