CN213842450U

CN213842450U - Temperature measuring device for vacuum furnace

Info

Publication number: CN213842450U
Application number: CN202023097945.XU
Authority: CN
Inventors: 林辉; 武永强
Original assignee: Shanxi Tuohang Electronic Technology Co ltd
Current assignee: Shanxi Tuohang Electronic Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-07-30
Anticipated expiration: 2030-12-21

Abstract

The utility model provides a temperature measuring device for a vacuum furnace, which relates to the field of vacuum furnace temperature measurement. The temperature measuring device for the vacuum furnace comprises at least two temperature measuring boxes and thermocouples, wherein a connecting pipe is arranged at the top of each temperature measuring box and is fixedly connected and communicated with the temperature measuring boxes, a connecting seat is arranged at the top of each connecting pipe and is movably sleeved with the connecting pipe, and a connecting structure is arranged between each connecting pipe and the corresponding connecting seat. When the thermocouple is damaged due to temperature, the temperature measuring box can be rotated, the sensing part of the damaged thermocouple is moved out of the furnace body, and the head of a new thermocouple enters, so that the function of measuring the temperature of the furnace body can be lost in the shortest time, the measurement of the temperature of the furnace body can be ensured, a large amount of time is not wasted due to the disassembly and the replacement of the thermocouple, the shutdown and the maintenance can not be caused due to the damage of the thermocouple, and the benefit of the furnace is improved.

Description

Temperature measuring device for vacuum furnace

Technical Field

The utility model relates to a vacuum furnace temperature measurement technical field specifically is a temperature measuring device for vacuum furnace.

Background

A high temperature vacuum furnace is a device that heats in a vacuum environment. The high vacuum pump system is connected with a furnace chamber sealed by a metal cover or a quartz glass cover by a pipeline. The vacuum degree of the hearth can reach 133 x (10 < -2 > -10 < -4 >) Pa. The heating system in the furnace can be directly electrified and heated by resistance furnace wires (such as tungsten wires) or by high-frequency induction heating. The highest temperature can reach about 3000 ℃. The method is mainly used for ceramic firing, vacuum smelting, degassing of electric vacuum parts, annealing, brazing of metal parts, ceramic-metal sealing and the like; for the vacuum furnace with such a high temperature, the internal temperature needs to be monitored and detected in real time, and a thermocouple can be used for temperature monitoring.

The thermocouple easily causes the damage when the furnace body internal temperature is too high, and the thermocouple after the damage can not be torn open immediately and trade, because the furnace body temperature is higher, need to shut down the vacuum furnace after maintain and tear open and trade, this waste more time, convenient inadequately.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a temperature measuring device for vacuum furnace, which aims to solve the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a temperature measuring device for a vacuum furnace comprises at least two temperature measuring boxes and thermocouples, wherein the top of each temperature measuring box is provided with a connecting pipe, the connecting pipes are fixedly connected and communicated with the temperature measuring boxes, the top of each connecting pipe is provided with a connecting seat, the connecting seats are movably sleeved with the connecting pipes, and a connecting structure is arranged between each connecting pipe and each connecting seat;

the connecting structure comprises a limiting clamping groove and an installation groove hole, the limiting clamping groove is arranged at the bottom of the inner side of the connecting pipe, a clamping hole is formed in the inner side of the limiting clamping groove, the installation groove hole is arranged at the bottom of the outer side of the connecting seat, a clamping block is arranged inside the installation groove hole, the clamping block is sleeved with the installation groove hole in a sliding mode and extends to the outer side of the installation groove hole, the clamping block is close to one end of the inside of the installation groove hole and fixedly connected with a compression spring, the compression spring is fixedly connected with the connecting seat, and the clamping block is movably clamped with the connecting pipe through the clamping hole.

Preferably, the through hole has been seted up on the temperature measurement box, the slope cell body has all been seted up to the thermocouple both sides, the inside press platen that is equipped with of slope cell body, press the equal fixedly connected with pivot in press platen one end top and bottom, rotate through the pivot between press platen and the thermocouple and be connected, press platen is close to temperature measurement box one side and is equipped with the embedding piece, embedding piece and press platen fixed connection, press platen is close to the inside one side fixedly connected with reset spring of slope cell body, reset spring contacts with the thermocouple.

Preferably, a pressing block is arranged at the other end of the pressing plate, and the pressing block is fixedly connected with the pressing plate.

Preferably, the two thermocouples are arranged at different heights, the thermocouples penetrate through the through holes, and the thermocouples penetrate through the temperature measuring box.

Preferably, the joint hole is provided with four, the joint hole is seted up on the connecting pipe, adjacent two the joint hole uses the axle center of connecting pipe as central evenly distributed.

Preferably, the top of the limiting clamping groove is provided with a limiting ring, the limiting ring is fixedly connected with the inner wall of the connecting pipe, the inner side of the limiting ring is provided with frosted particles, and the limiting ring is made of rubber.

Preferably, an embedded groove is formed in one side, close to the pressing plate, of the temperature measuring box, and the embedded block extends into the embedded groove.

The utility model provides a temperature measuring device for vacuum furnace, its beneficial effect who possesses as follows:

1. this temperature measuring device for vacuum furnace lives temperature measuring box with hand control and rotates owing to design the joint hole with the inboard that restricts the draw-in groove, when the inside in joint hole is gone into to the fixture block card, certain stable connection effect is established to connecting pipe and connecting seat, owing to set up a plurality ofly with the joint hole, when the thermocouple leads to damaging because of the temperature reason, can rotate temperature measuring box, make the response part of the thermocouple that damages shift out from the furnace body, the head of a new thermocouple gets into, the time that can accomplish as short as possible like this loses the measurement function to the furnace body temperature, can guarantee that the measurement of furnace body temperature does not waste a large amount of time because of tearing open the thermocouple of changing, can not damage because of a thermocouple, lead to the shutdown maintenance, improve the benefit of stove, can maintain when the vacuum furnace cost is on duty.

2. This temperature measuring device for vacuum furnace is under the normal mounted state of thermocouple, the embedding piece on the pressing plate is the inside of inserting the embedded groove, directly pull the thermocouple this moment, the thermocouple can not break away from the through-hole is inside easily, provide a stability, when maintainer pressed two according to the pressing block, because one section according to the pressing plate has set up the pivot, the pressing plate rotates for the thermocouple, reset spring is compressed this moment, the embedding piece is from the inside time that breaks away from of embedded groove, stimulate the thermocouple this moment, can take out the thermocouple easily, it is all comparatively convenient to install and disassemble, it is very convenient to use.

Drawings

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

FIG. 2 is a schematic view of the structure of the connecting tube and the connecting seat of the present invention;

FIG. 3 is an enlarged view of the structure of part A of FIG. 1 according to the present invention;

fig. 4 is a schematic diagram of the pressing plate structure of the present invention.

In the figure: 1. a temperature measuring box; 2. a thermocouple; 3. a connecting pipe; 4. a connecting seat; 5. a limiting clamping groove; 6. a clamping hole; 7. mounting a slotted hole; 8. a clamping block; 9. a confinement ring; 10. a through hole; 11. an inclined trough body; 12. a pressing plate; 13. a rotating shaft; 14. embedding a block; 15. a return spring; 16. and pressing the block.

Detailed Description

The embodiment of the utility model provides a temperature measuring device for vacuum furnace, as shown in fig. 1-4, including temperature measuring box 1 and thermocouple 2, thermocouple 2 sets up to two at least, two thermocouples 2 set up in different height, thermocouple 2 passes temperature measuring box 1, the top of temperature measuring box 1 is equipped with connecting pipe 3, connecting pipe 3 and temperature measuring box 1 are fixedly connected and communicated, the top of connecting pipe 3 is equipped with connecting seat 4, connecting seat 4 and connecting pipe 3 are movably muff-coupled, there is a connection structure between connecting pipe 3 and connecting seat 4;

the connecting structure comprises limiting clamping grooves 5 and mounting groove holes 7, the limiting clamping grooves 5 are arranged at the bottom of the inner side of a connecting pipe 3, clamping holes 6 are arranged at the inner side of the limiting clamping grooves 5, four clamping holes 6 are arranged on the connecting pipe 3, two adjacent clamping holes 6 are uniformly distributed by taking the axis of the connecting pipe 3 as the center, the mounting groove holes 7 are arranged at the bottom of the outer side of a connecting seat 4, a clamping block 8 is arranged inside the mounting groove holes 7, the clamping block 8 is sleeved with the mounting groove holes 7 in a sliding manner and extends to the outer side of the mounting groove holes 7, one end of the clamping block 8 close to the inner side of the mounting groove holes 7 is fixedly connected with a compression spring, the compression spring is fixedly connected with the connecting seat 4, the clamping block 8 is movably clamped with the connecting pipe 3 through the clamping holes 6, a limiting ring 9 is arranged at the top of the limiting clamping grooves 5, the limiting ring 9 is fixedly connected with the inner wall of the connecting pipe 3, and frosted particles are arranged at the inner side of the limiting ring 9, the material of limit ring 9 sets up to rubber, and limit ring 9 sets up rubber materials and goes into in order to avoid blockking the normal card of connecting seat 4, and its outside dull polish granule simultaneously can make limit ring 9 inseparable to the outer wall laminating of connecting seat 4, provides a great frictional resistance simultaneously, avoids being rotated easily or leading to breaking away from between connecting pipe 3 and the connecting seat 4.

Seted up through-hole 10 on the temperature measurement box 1, thermocouple 2 runs through-hole 10, slope cell body 11 has all been seted up to 2 both sides of thermocouple, the inside pressing plate 12 that is equipped with of slope cell body 11, the equal fixedly connected with pivot 13 in pressing plate 12 one end top and bottom, rotate through pivot 13 between pressing plate 12 and the thermocouple 2 and be connected, pressing plate 12 is close to 1 one side of temperature measurement box and is equipped with embedded piece 14, embedded piece 14 and pressing plate 12 fixed connection, pressing plate 12 is close to 11 inside one side fixedly connected with reset spring 15 of slope cell body, reset spring 15 contacts with thermocouple 2, embedded groove has been seted up near pressing plate 12 one side to temperature measurement box 1, embedded piece 14 extends to embedded groove inside.

The other end of the pressing plate 12 is provided with a pressing block 16, the pressing block 16 is fixedly connected with the pressing plate 12, and the pressing block 16 is used for pressing.

The implementation mode is specifically as follows: the utility model discloses at the in-process of in-service use, with connecting seat 4 and furnace body coupling, for guaranteeing stability, can place connecting pipe 3 in the top of connecting seat 4 and install when the installation, connecting seat 4 plays the effect that supports, thermocouple 2 sets up at least two, the head of one of them thermocouple 2 is close to the vacuum furnace body and carries out temperature measurement, thermocouple 2's circuit can be followed connecting pipe 3 and connecting seat 4 inboard and spread and link to each other with external equipment, in order to obtain furnace body temperature data, two thermocouples 2 are no less than in the setting, and make it be located the not co-altitude of temperature measurement box 1, in order to make things convenient for follow-up reserve replacement.

After the connecting seat 4 is installed, the connecting tube 3 is aligned with the connecting seat 4 to be sleeved, the end part of the connecting seat 4 is firstly inserted into the inner side of the connecting tube 3, then the position of the fixture block 8 and the position of the limiting clamping groove 5 are on the same horizontal plane, then the temperature measuring box 1 is controlled by hands to rotate, as the clamping hole 6 is designed on the inner side of the limiting clamping groove 5, when the fixture block 8 is clamped into the clamping hole 6, a certain stable connection effect is established between the connecting tube 3 and the connecting seat 4, in the process, a compression spring designed in the installation groove hole 7 is in a compressed state when the fixture block 8 is abutted against the wall of the connecting tube 3, when the fixture block 8 enters into the clamping hole 6, as the clamping hole 6 is in a release state, as a plurality of the clamping holes 6 are arranged, when the thermocouple 2 is damaged due to temperature, the temperature measuring box 1 can be rotated, so that the induction part of the damaged thermocouple 2 is moved out of the furnace body, the head of a new thermocouple 2 enters, so that the function of measuring the temperature of the furnace body can be lost in the shortest time, the temperature of the furnace body can be measured without wasting a large amount of time due to the disassembly and replacement of the thermocouple 2, the shutdown and maintenance caused by the damage of one thermocouple 2 can be avoided, and the benefit of the furnace can be improved.

In addition, all design slope cell body 11 in thermocouple 2's both sides, and set up pressing plate 12 in the inside of slope cell body 11, under thermocouple 2's normal installation state, embedding piece 14 on pressing plate 12 is inserted the inside of embedded groove, directly pull thermocouple 2 this moment, thermocouple 2 can not break away from through-hole 10 inside easily, a stability is provided, when maintainer pressed two pressing blocks 16, because one section of pressing plate 12 has set up pivot 13, pressing plate 12 rotates for thermocouple 2, reset spring 15 is compressed this moment, embedding piece 14 is from the inside time that breaks away from of embedded groove, pull thermocouple 2 this moment, can take out thermocouple 2 easily, it is all convenient with disassembling, it is very convenient to use.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The temperature measuring device for the vacuum furnace is characterized by comprising at least two temperature measuring boxes (1) and thermocouples (2), wherein the top of each temperature measuring box (1) is provided with a connecting pipe (3), the connecting pipes (3) are fixedly connected and communicated with the temperature measuring boxes (1), the top of each connecting pipe (3) is provided with a connecting seat (4), the connecting seats (4) are movably sleeved with the connecting pipes (3), and a connecting structure is arranged between each connecting pipe (3) and each connecting seat (4);

connection structure includes restriction draw-in groove (5) and installation slotted hole (7), connection pipe (3) inboard bottom is seted up in restriction draw-in groove (5), restriction draw-in groove (5) inboard is provided with joint hole (6), installation slotted hole (7) are seted up in connecting seat (4) outside bottom, installation slotted hole (7) inside is provided with fixture block (8), fixture block (8) slide with installation slotted hole (7) and cup joint and extend to the installation slotted hole (7) outside, fixture block (8) are close to the inside one end fixedly connected with compression spring of installation slotted hole (7), compression spring and connecting seat (4) fixed connection, through joint hole (6) activity joint between fixture block (8) and connection pipe (3).

2. The temperature measuring device for the vacuum furnace according to claim 1, wherein: the temperature measurement box is characterized in that a through hole (10) is formed in the temperature measurement box (1), inclined groove bodies (11) are formed in two sides of the thermocouple (2), a pressing plate (12) is arranged inside the inclined groove bodies (11), a rotating shaft (13) is fixedly connected to the top of one end of the pressing plate (12) and the bottom of the pressing plate (12), the pressing plate (12) is rotatably connected with the thermocouple (2) through the rotating shaft (13), an embedded block (14) is arranged on one side, close to the temperature measurement box (1), of the pressing plate (12), the embedded block (14) is fixedly connected with the pressing plate (12), a reset spring (15) is fixedly connected to one side, close to the inside of the inclined groove bodies (11), of the pressing plate (12), and the reset spring (15) is in contact with the thermocouple (2).

3. The temperature measuring device for the vacuum furnace according to claim 2, wherein: the other end of the pressing plate (12) is provided with a pressing block (16), and the pressing block (16) is fixedly connected with the pressing plate (12).

4. The temperature measuring device for the vacuum furnace according to claim 1, wherein: the two thermocouples (2) are arranged at different heights, the thermocouples (2) penetrate through the through holes (10), and the thermocouples (2) penetrate through the temperature measuring box (1).

5. The temperature measuring device for the vacuum furnace according to claim 1, wherein: the connecting device is characterized in that the number of the connecting holes (6) is four, the connecting holes (6) are arranged on the connecting pipe (3) and are adjacent to each other, and the connecting holes (6) are uniformly distributed by taking the axis of the connecting pipe (3) as the center.

6. The temperature measuring device for the vacuum furnace according to claim 1, wherein: restriction draw-in groove (5) top is provided with restrictor ring (9), restrictor ring (9) and connecting pipe (3) inner wall fixed connection, restrictor ring (9) inboard is provided with dull polish granule, the material of restrictor ring (9) sets up to rubber.

7. The temperature measuring device for the vacuum furnace according to claim 2, wherein: an embedded groove is formed in one side, close to the pressing plate (12), of the temperature measuring box (1), and the embedded block (14) extends into the embedded groove.