Resistance furnace temperature control protection device

Abstract

The invention discloses a resistance furnace temperature control protection device, and belongs to the technical field of temperature control protection devices.The resistance furnace temperature control protection device comprises a furnace body, a furnace door is installed on the front face of the furnace body, a temperature control box is fixedly installed at the right end of the furnace body, a cooling mechanism is arranged in the temperature control box, and a heat insulation plate is fixedly connected to the inner wall of the furnace body; a sensing box is slidably connected to the back face of the furnace body, a maintenance mechanism is arranged on the furnace body, a socket is fixedly connected to the upper end of the sensing box, a control box is installed at the upper end of the furnace body, and a data line is fixedly connected to the middle of the back face of the control box. The limiting frame is additionally arranged on the furnace body, the positioning column is additionally arranged on the furnace body, the protective cover is additionally arranged on the sensing box and other structures are additionally arranged on the sensing box, when overhauling is needed, limiting of the sensing box can be relieved only by pulling the limiting frame to enable the limiting frame to be separated from the sensing box, the protective cover is pulled in the direction of being separated from the sensing box after the sensing box is taken down, and the sensing box can be overhauled. And the temperature sensing probe can be exposed for detection.

Description

Technical Field

[0001] The invention relates to the technical field of temperature control and protection devices, and more specifically to a temperature control and protection device for a resistance furnace. Background Art

[0002] A resistance furnace is an industrial furnace that uses electric current to heat the electric heating elements or heating medium in the furnace, thereby heating the workpiece or material. It is a heating furnace that uses electric current to pass through resistance materials to generate heat energy. In order to avoid overheating of the internal temperature of the resistance furnace during operation, the working process of the resistance furnace needs to be controlled by a temperature control protection device. However, in order to ensure the accuracy of the temperature sensing probe, the temperature control protection device in the prior art needs to regularly detect and repair the temperature sensing probe. However, the installation of the temperature sensing probe and the sensor box is too cumbersome, resulting in inconvenience in detection. In addition, when the resistance furnace is overheated, it can only rely on natural cooling, and it is impossible to quickly cool down the inside of the resistance furnace. Therefore, it is necessary to improve the prior art. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a temperature control and protection device for a resistance furnace, which can solve the problems.

[0004] To solve the above problems, the present invention adopts the following technical solutions: A temperature control and protection device for a resistance furnace comprises a furnace body, a furnace door is installed on the front of the furnace body, a temperature control box is fixedly installed on the right end of the furnace body, a cooling mechanism is arranged inside the temperature control box, a heat insulation board is fixedly connected to the inner wall of the furnace body, a sensor box is slidably connected to the back of the furnace body, a maintenance mechanism is arranged on the furnace body, a socket is fixedly connected to the upper end of the sensor box, a control box is installed on the upper end of the furnace body, a data cable is fixedly connected to the middle part of the back side of the control box, the data cable is plugged into the socket, a filter is fixedly connected to the lower right end of the temperature control box, and a plurality of evenly distributed temperature sensing probes are fixedly connected to the outer side of the sensor box.

[0005] As a preferred embodiment of the temperature control and protection device of a resistance furnace of the present invention, the cooling mechanism comprises an air inlet pipe, an inner upper portion of the temperature control box is fixedly connected with the air inlet pipe, an inner upper portion of the temperature control box is fixedly connected with a fan, the air inlet pipe is located at an inner side of the furnace body and is hingedly connected with a cover plate on the outer side, the inner top of the air inlet pipe is fixedly connected with a fixing plate, a tension spring is arranged on the outer side of the fixing plate, an inner lower portion of the temperature control box is fixedly connected with an exhaust frame, a one-way cover is slidably connected with the outer side of the exhaust frame, a guide nail is fixedly connected to the interior of the temperature control box, a connecting strip is slidably connected to the outer side of the guide nail, a spring is arranged on the outer side of the guide nail, a partition is fixedly connected to the interior of the temperature control box, a filter box is fixedly connected between the partition and the temperature control box, and the interior of the filter box is filled with filter material.

[0006] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, one end of the tension spring is fixedly connected to the fixing plate, the other end of the tension spring is fixedly connected to the cover plate, and the air inlet pipe is fixedly connected to the furnace body.

[0007] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, one end of the spring one is fixedly connected to the connecting strip, the other end of the spring one is fixedly connected to the guide pin, and the connecting strip is fixedly connected to the one-way cover.

[0008] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, the partition is fixedly connected to the air inlet pipe, and the partition is in contact with the filter screen.

[0009] As a preferred embodiment of the temperature control and protection device of a resistance furnace of the present invention, the maintenance mechanism includes a fixing bar, two symmetrically distributed fixing bars are fixedly connected to the middle part of the back side of the furnace body, a fixing nail is fixedly connected to the end of the fixing bar away from the sensor box, the outer side of the fixing nail is slidably connected to the limiting frame, the outer side of the limiting frame is fixedly connected to a pull ring, a spring 2 is arranged on the outer side of the fixing nail, a fixing tube is fixedly connected to the outer side of the sensor box, a square rod nail is fixedly connected to the outer side of the fixing tube, a connecting plate is slidably connected to the outer side of the square rod nail, a spherical block is fixedly connected to the side of the connecting plate away from the fixing tube, a spring 3 is arranged on the outer side of the square rod nail, a protective cover is slidably connected to the outer side of the sensor box, and a positioning column is fixedly connected to the back side of the furnace body.

[0010] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, the fixing bar is slidably connected to the sensor box, the limiting frame is slidably connected to the furnace body, the limiting frame is slidably connected to the sensor box, and the limiting frame contacts the fixing bar.

[0011] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, one end of the second spring is fixedly connected to the limit frame, and the other end of the second spring is fixedly connected to the fixing nail.

[0012] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, the positioning column is slidably connected to the sensor box, the protective cover is slidably connected to the furnace body, and the spherical block is snap-fitted to the protective cover.

[0013] As a preferred solution of the temperature control protection device for a resistance furnace of the present invention, one end of the spring three is fixedly connected to the fixed tube, and the other end of the spring three is fixedly connected to the connecting plate.

[0014] Compared with the prior art, the advantages of the present invention are: (1) In the present invention, by adding a limit frame to the furnace body, adding a positioning column to the furnace body, adding a protective cover to the sensor box and other structures, when maintenance is required, the limit frame can be released by pulling the limit frame to separate from the sensor box, and after the sensor box is removed, the protective cover is pulled in the direction of separation from the sensor box, so that the temperature sensor probe can be exposed for detection.

[0015] (2) In the present invention, by adding structures such as an air inlet pipe, an exhaust frame and a fan inside the temperature control box, when it is necessary to cool the inside of the furnace body, low-temperature gas can be injected into the inside of the furnace body through the fan and the air inlet pipe, and at the same time, high-temperature gas can be discharged from the inside of the temperature control box through the exhaust frame, thereby effectively improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the present invention is Figure 1 ; Figure 2 The structure of the present invention is Figure 2 ; Figure 3 For the present invention Figure 1 A front cross-sectional view of a temperature control box; Figure 4 For the present invention Figure 2 A three-dimensional enlarged image of the sensor box; Figure 5 For the present invention Figure 4 A partial structure enlarged front view and cross-sectional view; Figure 6 For the present invention Figure 2 A magnified view of the structure of part A; Figure 7 For the present invention Figure 3 A magnified view of the structure of part B; Figure 8 For the present invention Figure 3 A magnified view of the C-section structure; Fig. 9 For the present invention Figure 5 A magnified view of the D-section structure; Fig.10 For the present invention Figure 6 A three-dimensional enlarged view of the limit frame; Fig.11 For the present invention Figure 6 A magnified three-dimensional image of the fixing bar.

[0017] Description of the numbers in the figure: 1. Furnace body; 2. Furnace door; 3. Temperature control box; 4. Cooling mechanism; 5. Heat insulation board; 6. Sensor box; 7. Maintenance mechanism; 8. Socket; 9. Control box; 10. Data cable; 11. Filter; 12. Temperature sensor; 41. Inlet pipe; 42. Fan; 43. Cover plate; 44. Fixed plate; 45. Tension spring; 46. Exhaust frame; 47. One-way cover; 48. Guide nail; 49. Connecting strip; 40. Spring one; 401. Partition; 402. Filter box; 403. Filter material; 71. Fixed strip; 72. Fixed nail; 73. Limiting frame; 74. Pull ring; 75. Spring two; 76. Fixed pipe; 77. Square rod nail; 78. Connecting plate; 79. Spherical block; 70. Spring three; 701. Protective cover; 702. Positioning column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example: See also Figure 1-11A temperature control and protection device for a resistance furnace comprises a furnace body 1, a furnace door 2 is installed on the front of the furnace body 1, a temperature control box 3 is fixedly installed on the right end of the furnace body 1, a cooling mechanism 4 is arranged inside the temperature control box 3, a heat insulation board 5 is fixedly connected to the inner wall of the furnace body 1, a sensor box 6 is slidably connected to the back of the furnace body 1, a maintenance mechanism 7 is arranged on the furnace body 1, a socket 8 is fixedly connected to the upper end of the sensor box 6, a control box 9 is installed on the upper end of the furnace body 1, a data cable 10 is fixedly connected to the middle part of the back side of the control box 9, the data cable 10 is plugged into the socket 8, a filter screen 11 is fixedly connected to the lower right end of the temperature control box 3, and a plurality of evenly distributed temperature probes 12 are fixedly connected to the outer side of the sensor box 6.

[0022] In this embodiment, multiple temperature sensing probes 12 can make the detected data more accurate.

[0023] For details, please refer to Figure 3 The cooling mechanism 4 includes an air inlet pipe 41, an air inlet pipe 41 is fixedly connected to the upper inner part of the temperature control box 3, a fan 42 is fixedly connected to the upper inner part of the temperature control box 3, a cover plate 43 is hinged on the outer side of one end of the air inlet pipe 41 located on the inner side of the furnace body 1, a fixing plate 44 is fixedly connected to the inner top of the air inlet pipe 41, a tension spring 45 is arranged on the outer side of the fixing plate 44, an exhaust frame 46 is fixedly connected to the lower inner part of the temperature control box 3, a one-way cover 47 is slidably connected to the outer side of the exhaust frame 46, a guide pin 48 is fixedly connected to the inside of the temperature control box 3, a connecting strip 49 is slidably connected to the outer side of the guide pin 48, a spring 40 is arranged on the outer side of the guide pin 48, a partition 401 is fixedly connected to the inside of the temperature control box 3, a filter box 402 is fixedly connected between the partition 401 and the temperature control box 3, and a filter material 403 is filled inside the filter box 402.

[0024] In the present embodiment, the fan 42 blows air into the air pipe 41. When the wind force received by the cover plate 43 is greater than the elastic force of the tension spring 45, the cover plate 43 can be deflected. The suction force generated by the fan 42 can inject the air on the outside of the temperature control box 3 into the interior of the furnace body 1 after being filtered by the filter material 403 and the filter screen 11. At the same time, the hot air enters the exhaust frame 46 inside the furnace body 1 and pushes the one-way cover 47 to move. When the one-way cover 47 is separated from the exhaust frame 46, the hot air can be discharged.

[0025] For details, please refer to Figure 7 One end of the tension spring 45 is fixedly connected to the fixing plate 44 , the other end of the tension spring 45 is fixedly connected to the cover plate 43 , and the air inlet pipe 41 is fixedly connected to the furnace body 1 .

[0026] In this embodiment, the tension spring 45 can drive the cover plate 43 to automatically return to its original position through elastic force.

[0027] For details, please refer to Figure 8One end of the spring 40 is fixedly connected to the connecting strip 49 , the other end of the spring 40 is fixedly connected to the guide pin 48 , and the connecting strip 49 is fixedly connected to the one-way cover 47 .

[0028] In this embodiment, the spring 1 40 can drive the connecting strip 49 to automatically reset through elastic force.

[0029] For details, please refer to Figure 3 The partition 401 is fixedly connected to the air inlet pipe 41 , and the partition 401 is in contact with the filter screen 11 .

[0030] In this embodiment, the partition 401 can separate the interior of the temperature control box 3.

[0031] For details, please refer to Figure 6 , Fig. 9 , Fig.10 , Fig.11 The maintenance mechanism 7 includes a fixing bar 71. Two symmetrically distributed fixing bars 71 are fixedly connected to the middle part of the back side of the furnace body 1. A fixing nail 72 is fixedly connected to the end of the fixing bar 71 away from the sensor box 6. The outer side of the fixing nail 72 is slidably connected to a limiting frame 73. A pull ring 74 is fixedly connected to the outer side of the limiting frame 73. A spring 2 75 is arranged on the outer side of the fixing nail 72. A fixing tube 76 is fixedly connected to the outer side of the sensor box 6. A square rod nail 77 is fixedly connected to the outer side of the fixing tube 76. A connecting plate 78 is slidably connected to the outer side of the square rod nail 77. A spherical block 79 is fixedly connected to the side of the connecting plate 78 away from the fixing tube 76. A spring 3 70 is arranged on the outer side of the square rod nail 77. A protective cover 701 is slidably connected to the outer side of the sensor box 6. A positioning column 702 is fixedly connected to the back side of the furnace body 1.

[0032] In this embodiment, the pull ring 74 is pulled, and the pull ring 74 drives the limiting frame 73 to move and compresses the spring 2 75. When the limiting frame 73 is separated from the sensor box 6, the sensor box 6 can be removed from the furnace body 1.

[0033] For details, please refer to Figure 6 The fixing bar 71 is slidably connected to the sensor box 6 , the limiting frame 73 is slidably connected to the furnace body 1 , the limiting frame 73 is slidably connected to the sensor box 6 , and the limiting frame 73 contacts the fixing bar 71 .

[0034] In this embodiment, the limit frame 73 can limit the sensor box 6. For details, please refer to Figure 6 One end of the spring 75 is fixedly connected to the limiting frame 73 , and the other end of the spring 75 is fixedly connected to the fixing nail 72 .

[0035] In this embodiment, the second spring 75 can drive the limiting frame 73 to automatically reset through elastic force.

[0036] For details, please refer to Fig. 9 The positioning column 702 is slidably connected to the sensor box 6 , the protective cover 701 is slidably connected to the furnace body 1 , and the spherical block 79 is snap-fitted to the protective cover 701 .

[0037] In this embodiment, the spherical block 79 can limit the protective cover 701.

[0038] For details, please refer to Fig. 9 One end of the spring three 70 is fixedly connected to the fixed tube 76 , and the other end of the spring three 70 is fixedly connected to the connecting plate 78 .

[0039] In this embodiment, the spring three 70 can drive the connecting plate 78 to automatically reset through elastic force.

[0040] Working principle: when the temperature sensing probe 12 needs to be tested, the data line 10 is pulled out from the inside of the socket 8, and then the pull ring 74 is pulled, the pull ring 74 drives the limit frame 73 to move, and compresses the spring 2 75. When the limit frame 73 is separated from the sensor box 6, the sensor box 6 can be removed from the furnace body 1, and then the protective cover 701 is pulled, and the protective cover 701 pushes the connecting plate 78 through the spherical block 79 to compress the spring 3 70. When the spherical block 79 is separated from the protective cover 701, the limit of the protective cover 701 can be released, and then the protective cover 701 can be removed to test the temperature sensing probe 12; When it is necessary to quickly cool down the interior of the furnace body 1, start the fan 42, and the fan 42 first blows air into the air pipe 41. When the wind force received by the cover plate 43 is greater than the elastic force of the tension spring 45, the cover plate 43 can be driven to deflect. The suction force generated by the fan 42 can inject the air from the outside of the temperature control box 3 into the interior of the furnace body 1 after being filtered by the filter material 403 and the filter screen 11. At the same time, the hot air enters the exhaust frame 46 inside the furnace body 1 and pushes the one-way cover 47 to move. When the one-way cover 47 is separated from the exhaust frame 46, the hot air can be discharged, thereby achieving the purpose of rapid cooling.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and improved concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A temperature control and protection device for a resistance furnace, comprising a furnace body (1), characterized in that: A furnace door (2) is installed on the front of the furnace body (1); a temperature control box (3) is fixedly installed on the right end of the furnace body (1); a cooling mechanism (4) is arranged inside the temperature control box (3); a heat insulation board (5) is fixedly connected to the inner wall of the furnace body (1); a sensor box (6) is slidably connected to the back of the furnace body (1); a maintenance mechanism (7) is arranged on the furnace body (1); a socket (8) is fixedly connected to the upper end of the sensor box (6); a control box (9) is installed on the upper end of the furnace body (1); a data line (10) is fixedly connected to the middle of the back of the control box (9); the data line (10) is plugged into the socket (8); a filter screen (11) is fixedly connected to the lower right end of the temperature control box (3); and a plurality of evenly distributed temperature probes (12) are fixedly connected to the outer side of the sensor box (6).

2. A resistance furnace temperature control protection device according to claim 1, characterized in that: The cooling mechanism (4) comprises an air intake pipe (41), the inner upper portion of the temperature control box (3) is fixedly connected to the air intake pipe (41), the inner upper portion of the temperature control box (3) is fixedly connected to a fan (42), the outer side of one end of the air intake pipe (41) located inside the furnace body (1) is hingedly connected to a cover plate (43), the inner top of the air intake pipe (41) is fixedly connected to a fixing plate (44), the outer side of the fixing plate (44) is provided with a tension spring (45), and the inner lower portion of the temperature control box (3) is fixedly connected to an exhaust frame (46). The outside of the exhaust frame (46) is slidably connected to a one-way cover (47), the inside of the temperature control box (3) is fixedly connected to a guide pin (48), the outside of the guide pin (48) is slidably connected to a connecting strip (49), a spring (40) is provided on the outside of the guide pin (48), the inside of the temperature control box (3) is fixedly connected to a partition (401), a filter box (402) is fixedly connected between the partition (401) and the temperature control box (3), and the inside of the filter box (402) is filled with filter material (403).

3. A resistance furnace temperature control protection device according to claim 2, characterized in that: One end of the tension spring (45) is fixedly connected to the fixing plate (44), the other end of the tension spring (45) is fixedly connected to the cover plate (43), and the air inlet pipe (41) is fixedly connected to the furnace body (1).

4. A resistance furnace temperature control protection device according to claim 2, characterized in that: One end of the spring one (40) is fixedly connected to the connecting strip (49), the other end of the spring one (40) is fixedly connected to the guide pin (48), and the connecting strip (49) is fixedly connected to the one-way cover (47).

5. The temperature control and protection device for a resistance furnace according to claim 2 is characterized in that: The partition plate (401) is fixedly connected to the air intake pipe (41), and the partition plate (401) is in contact with the filter screen (11).

6. The temperature control and protection device for a resistance furnace according to claim 1, characterized in that: The inspection mechanism (7) comprises a fixing bar (71), two symmetrically distributed fixing bars (71) are fixedly connected to the middle of the back side of the furnace body (1), one end of the fixing bar (71) away from the sensor box (6) is fixedly connected to a fixing nail (72), the outer side of the fixing nail (72) is slidably connected to a limiting frame (73), the outer side of the limiting frame (73) is fixedly connected to a pull ring (74), the outer side of the fixing nail (72) is provided with a spring 2 (75), the outer side of the sensor box (6) is fixedly connected to the fixing nail (72), and the outer side of the fixing nail (72) is fixedly connected to the limiting frame (73). A fixing tube (76) is fixedly connected to the outside of the fixing tube (76), a square rod nail (77) is fixedly connected to the outside of the square rod nail (77), a connecting plate (78) is slidably connected to the outside of the square rod nail (77), a spherical block (79) is fixedly connected to the side of the connecting plate (78) away from the fixing tube (76), a spring three (70) is arranged on the outside of the square rod nail (77), a protective cover (701) is slidably connected to the outside of the sensor box (6), and a positioning column (702) is fixedly connected to the back of the furnace body (1).

7. A resistance furnace temperature control protection device according to claim 6, characterized in that: The fixing bar (71) is slidably connected to the sensor box (6), the limiting frame (73) is slidably connected to the furnace body (1), the limiting frame (73) is slidably connected to the sensor box (6), and the limiting frame (73) is in contact with the fixing bar (71).

8. The temperature control and protection device for a resistance furnace according to claim 6, characterized in that: One end of the second spring (75) is fixedly connected to the limiting frame (73), and the other end of the second spring (75) is fixedly connected to the fixing nail (72).

9. The temperature control and protection device for a resistance furnace according to claim 6, characterized in that: The positioning column (702) is slidably connected to the sensor box (6), the protective cover (701) is slidably connected to the furnace body (1), and the spherical block (79) is snap-fitted to the protective cover (701).

10. The temperature control and protection device for a resistance furnace according to claim 6, characterized in that: One end of the spring three (70) is fixedly connected to the fixing tube (76), and the other end of the spring three (70) is fixedly connected to the connecting plate (78).

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