Thermocouple

Abstract

The utility model relates to a thermocouple, which belongs to the field of thermocouples, and comprises a thermocouple main body, a bump and a terminal, and an anti-wear assembly is arranged outside the terminal. The anti-wear assembly comprises a sleeve arranged at an opening of the wiring terminal, plug bushes fixedly connected to the top and the bottom of the wiring terminal, plug boards fixedly connected to the top and the bottom of the sleeve, dampers fixedly connected to the inner side and the outer side of the sleeve, and protective sleeves fixedly connected to the top ends of the dampers. The rubber pad is bonded to the outer surface of the protective sleeve, the first fixing plate is fixedly connected to the front face and the back face of the wiring end, the threaded column is fixedly connected to the right side of the fixing plate, the second fixing plate is fixedly connected to the front face and the back face of the sleeve, and the nut is connected to the top end of the threaded column in a threaded and sleeving mode. According to the thermocouple, through the arrangement of the anti-wear assembly, when the thermocouple is used, compared with an existing thermocouple, cable wear can be avoided, and the thermocouple is more beneficial to use.

Description

Technical Field

[0001] The present application relates to the technical field of thermocouples, and in particular to a thermocouple. Background Art

[0002] Thermocouple is a commonly used temperature measurement element. It can directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). Thermocouple is actually an energy converter that converts thermal energy into electrical energy and measures temperature using the generated thermoelectric potential.

[0003] Announcement No. CN210774392U discloses a thermocouple, including a measuring head and a terminal, an insulating section is axially arranged at the terminal, a hexagonal insulating section with a smaller diameter is arranged at the insulating section, the insulating section is connected to one end of a copper tube, and a stainless steel mounting tube is axially connected to the other end of the copper tube, and a measuring head made of a nickel-chromium alloy material is axially welded to the end of the stainless steel mounting tube. The measuring head of the utility model is made of a nickel-chromium alloy material, and the mounting and positioning sleeve is made of stainless steel material for high temperature resistance. The internal threading of the insulating section is more centered to prevent the thermocouple electrode from loosening and avoid short circuit during use. However, since no anti-wear component is provided, under long-term use of the thermocouple, the outer surface of the cable is in long-term contact with the opening of the terminal, which can easily cause the cable sheath to wear and the core wire to be exposed to the outside, and then the cable breaks, which is not conducive to use. Therefore, a thermocouple is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In response to the deficiencies in the prior art, the present application provides a thermocouple that solves the problem that due to the lack of an anti-wear component, the outer surface of the cable is in long-term contact with the opening of the terminal during long-term use of the thermocouple, which can easily cause the cable sheath to wear and the core wire to be exposed, leading to cable breakage and inconvenient use.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a thermocouple, comprising a thermocouple body, a protrusion and a terminal, wherein an anti-wear component is arranged outside the terminal;

[0006] The anti-wear component includes a sleeve arranged at the opening of the terminal, a socket fixedly connected to the top and bottom of the terminal, a plug plate fixedly connected to the top and bottom of the sleeve, a damper fixedly connected to the inside and outside of the sleeve, a protective sleeve fixedly connected to the top of the damper, a rubber pad bonded to the outer surface of the protective sleeve, a first fixing plate fixedly connected to the front and back of the terminal, a threaded column fixedly connected to the right side of the fixing plate, a second fixing plate fixedly connected to the front and back of the sleeve, and a nut threadedly sleeved on the top of the threaded column.

[0007] By adopting the above technical solution, the present application can avoid cable wear and is more convenient to use compared with existing thermocouples.

[0008] Furthermore, a left half tube and a right half tube are provided on the left and right sides of the thermocouple main body protection tube, and mounting plates are fixedly connected to the front and back sides of the left half tube and the right half tube.

[0009] The beneficial effect of adopting the above further solution is that by providing the left half tube and the right half tube, the effect of protecting the thermocouple body protection tube is achieved, and at the same time, it is more convenient for transportation.

[0010] Furthermore, a positioning hole is formed on the outer surface of the mounting plate, a positioning bolt is disposed inside the positioning hole, and a positioning nut is threadedly sleeved on the outer surface of the positioning bolt.

[0011] The beneficial effect of adopting the above further scheme is: by setting positioning bolts and positioning nuts, when the left half pipe and the right half pipe affect the installation of the thermocouple body, the staff only needs to remove the positioning bolts and the positioning nuts to release the limit on the left half pipe and the right half pipe, thereby disassembling them and achieving the effect of easy disassembly and assembly.

[0012] Furthermore, the inner side and the outer side of the left half pipe and the right half pipe are fixedly connected with thermal insulation pads, and the material of the thermal insulation pads is glass wool.

[0013] The beneficial effect of adopting the above further solution is: by providing a heat insulating pad made of glass wool, a heat insulating effect can be achieved, thereby preventing the external temperature from affecting the normal operation of the thermocouple body.

[0014] Furthermore, the number of the wiring terminals is two, and the socket is plugged and fixed to the plugboard.

[0015] The beneficial effect of adopting the above further solution is that by providing the socket and the plug plate, it is convenient for the staff to perform rapid positioning.

[0016] Furthermore, the number of the protrusions is consistent with that of the wiring terminals, and the bottom of the protrusion is fixedly connected to the top of the thermocouple body.

[0017] The beneficial effect of adopting the above further solution is that by providing the protrusion, the sensitive part of the thermocouple can be protected from physical damage or environmental influence.

[0018] Furthermore, an isolation pad is fixedly connected to the outer surface of the thermocouple body protection tube, and the isolation pad is made of ceramic.

[0019] The beneficial effect of adopting the above further solution is that by providing an isolation pad made of ceramic material, the corrosion resistance of the thermocouple body is enhanced and its service life is increased.

[0020] Compared with the prior art, the present application provides a thermocouple having the following beneficial effects:

[0021] The thermocouple is provided with an anti-wear component. When in use, the cable will pass through the wiring terminal to the outside of the sleeve. When the cable is about to contact the sleeve opening, the rubber pad on the outer surface of the protective sleeve can play a cushioning role to avoid cable wear, and the damper can play a buffering role to avoid excessive pressure on the cable. At the same time, it can also simply clamp the cable to prevent it from deflecting. Compared with the existing thermocouple, it can avoid cable wear and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a cross-sectional view of the internal structure of this application;

[0023] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a front view of the terminal and bushing structure for this application;

[0025] Figure 4 A three-dimensional diagram of the protective cover structure for this application;

[0026] Figure 5 This is the front view of the structure of this application.

[0027] In the figure: 1. Thermocouple body; 2. Bump; 3. Wiring terminal; 4. Sleeve; 5. Plug sleeve; 6. Plug plate; 7. Damper; 8. Protective sleeve; 9. Rubber pad; 10. Fixing plate; 11. Threaded column; 12. Second fixing plate; 13. Nut; 14. Left half pipe; 15. Right half pipe; 16. Mounting plate; 17. Positioning hole; 18. Positioning bolt; 19. Positioning nut; 20. Insulation pad; 21. Isolation pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] See also Figure 1-5 A thermocouple in this embodiment includes a thermocouple body 1, a protrusion 2 and a terminal 3, and an anti-wear component is provided outside the terminal 3;

[0030] The anti-wear component includes a sleeve 4 arranged at the opening of the terminal 3, a socket 5 fixedly connected to the top and bottom of the terminal 3, a plug plate 6 fixedly connected to the top and bottom of the sleeve 4, a damper 7 fixedly connected to the inside and outside of the sleeve 4, a protective sleeve 8 fixedly connected to the top of the damper 7, a rubber pad 9 bonded to the outer surface of the protective sleeve 8, a first fixing plate 10 fixedly connected to the front and back of the terminal 3, a threaded column 11 fixedly connected to the right side of the fixing plate 10, a second fixing plate 12 fixedly connected to the front and back of the sleeve 4 and a nut 13 threadedly sleeved on the top of the threaded column 11. When in use, the cable will pass through the terminal 3 to the outside of the sleeve 4. When the cable is about to contact the opening of the sleeve 4, the rubber pad 9 on the outer surface of the protective sleeve 8 can play a bottoming role to prevent cable wear.

[0031] The damper 7 can play a buffering role to prevent the cable from being subjected to excessive pressure. At the same time, it can also simply clamp the cable to prevent it from deflecting.

[0032] In addition, when the rubber pad 9 reaches the end of its service life, the staff only needs to remove the nut 13, and then pull out the sleeve 4 with force to release the plug-in connection between the socket 5 and the plug plate 6, and then remove the sleeve 4 and replace the rubber pad 9, which is more convenient. Compared with the existing thermocouple, it can avoid cable wear and is more conducive to use.

[0033] Among them, a left half tube 14 and a right half tube 15 are arranged on the left and right sides of the protection tube of the thermocouple body 1, and the front and back sides of the left half tube 14 and the right half tube 15 are fixedly connected with a mounting plate 16. By arranging the left half tube 14 and the right half tube 15, the effect of protecting the protection tube of the thermocouple body 1 is achieved, and at the same time, it is more convenient for transportation.

[0034] At the same time, a positioning hole 17 is opened on the outer surface of the mounting plate 16, and a positioning bolt 18 is arranged inside the positioning hole 17. A positioning nut 19 is threadedly sleeved on the outer surface of the positioning bolt 18. By arranging the positioning bolt 18 and the positioning nut 19, when the left half pipe 14 and the right half pipe 15 affect the installation of the thermocouple body 1, the staff only needs to remove the positioning bolt 18 and the positioning nut 19 to release the limit on the left half pipe 14 and the right half pipe 15, so as to disassemble them, thereby achieving the effect of easy disassembly and assembly.

[0035] In addition, the inner and outer sides of the left half tube 14 and the right half tube 15 are fixedly connected with insulation pads 20, and the material of the insulation pads 20 is glass wool. By setting the insulation pads 20 made of glass wool, it can achieve a heat insulation effect and prevent the external temperature from affecting the normal operation of the thermocouple body 1.

[0036] It should be noted that there are two terminals 3, and the socket 5 and the plug board 6 are plugged and fixed. By providing the socket 5 and the plug board 6, it is convenient for workers to quickly locate them.

[0037] It should be understood that the number of bumps 2 is consistent with the number of terminals 3, and the bottom of the bump 2 is fixedly connected to the top of the thermocouple body 1. By providing the bump 2, the sensitive part of the thermocouple can be protected from physical damage or environmental influences.

[0038] In addition, an isolation pad 21 is fixedly connected to the outer surface of the protection tube of the thermocouple body 1. The isolation pad 21 is made of ceramic. By providing the isolation pad 21 made of ceramic, the corrosion resistance of the thermocouple body 1 is enhanced and its service life is increased.

[0039] The implementation principle of a thermocouple in the embodiment of the present application is:

[0040] When the thermocouple is in use, the cable will pass through the terminal 3 to the outside of the sleeve 4. When the cable is about to contact the opening of the sleeve 4, the rubber pad 9 on the outer surface of the protective sleeve 8 can play a bottoming role to avoid cable wear, and the damper 7 can play a buffering role to avoid excessive pressure on the cable. At the same time, it can also simply clamp the cable to avoid its deviation. In addition, when the rubber pad 9 reaches the end of its service life, the staff only needs to remove the nut 13 and then pull out the sleeve 4 outward with force, thereby releasing the plug-in fixation of the sleeve 5 and the plug board 6, and the sleeve 4 can be removed and the rubber pad 9 can be replaced.

Claims

1. A thermocouple, comprising a thermocouple body (1), a protrusion (2) and a terminal (3), characterized in that: An anti-wear component is provided on the outside of the wiring terminal (3); The anti-wear component comprises a sleeve (4) arranged at an opening of the terminal (3), a plug sleeve (5) fixedly connected to the top and bottom of the terminal (3), a plug plate (6) fixedly connected to the top and bottom of the sleeve (4), a damper (7) fixedly connected to the inner and outer sides of the sleeve (4), a protective sleeve (8) fixedly connected to the top of the damper (7), a rubber pad (9) bonded to the outer surface of the protective sleeve (8), a first fixing plate (10) fixedly connected to the front and back sides of the terminal (3), a threaded column (11) fixedly connected to the right side of the fixing plate (10), a second fixing plate (12) fixedly connected to the front and back sides of the sleeve (4), and a nut (13) threadedly sleeved on the top of the threaded column (11).

2. A thermocouple according to claim 1, characterized in that: A left half tube (14) and a right half tube (15) are provided on the left and right sides of the protection tube of the thermocouple body (1), and mounting plates (16) are fixedly connected to the front and back sides of the left half tube (14) and the right half tube (15).

3. A thermocouple according to claim 2, characterized in that: A positioning hole (17) is provided on the outer surface of the mounting plate (16), a positioning bolt (18) is provided inside the positioning hole (17), and a positioning nut (19) is threadedly sleeved on the outer surface of the positioning bolt (18).

4. A thermocouple according to claim 2, characterized in that: The inner side and the outer side of the left half pipe (14) and the right half pipe (15) are both fixedly connected with a heat insulation pad (20), and the material of the heat insulation pad (20) is glass wool.

5. A thermocouple according to claim 1, characterized in that: The number of the wiring terminals (3) is two, and the plug sleeve (5) is plugged and fixed to the plug board (6).

6. A thermocouple according to claim 5, characterized in that: The number of the protrusions (2) is consistent with that of the wiring terminals (3), and the bottom of the protrusion (2) is fixedly connected to the top of the thermocouple body (1).

7. A thermocouple according to claim 1, characterized in that: An isolation pad (21) is fixedly connected to the outer surface of the protection tube of the thermocouple body (1), and the isolation pad (21) is made of ceramic.

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