Detachable armored thermocouple
By designing the housing, sleeve, and other structures, as well as the snap-fit mechanism, the problem of the inability to quickly disassemble existing detachable armored thermocouples has been solved, enabling rapid maintenance and stable connection, and improving the service life and working efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing detachable armored thermocouples cannot be quickly disassembled when equipment is damaged or during routine inspections, affecting maintenance efficiency and service life.
It adopts a structural design including a shell, sleeve, outer tube, rotating plate, cover, snap-fit mechanism, plug-in assembly and stabilizing assembly, and utilizes the cooperation of springs and locking blocks to achieve quick opening and closing and fastening, which facilitates maintenance.
It enables rapid disassembly and installation of equipment, improves maintenance efficiency, extends service life, and ensures equipment stability and safety.
Smart Images

Figure CN224081089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermocouple technology, and in particular to a detachable armored thermocouple. Background Technology
[0002] An armored thermocouple is a temperature sensor composed of a conductor, insulating material, and a metal protective sheath. It features high temperature resistance, oxidation resistance, corrosion resistance, and rapid response, making it suitable for temperature measurement in complex environments. Furthermore, armored thermocouples have high mechanical strength, can withstand vibration and shock, and possess excellent shock resistance.
[0003] The existing detachable armored thermocouple is a robust and durable temperature measuring element that can withstand high temperatures and pressures. It has a fast thermal response and flexibility and is suitable for measuring the temperature of liquids, steam, gases and solid surfaces. Its structure includes a junction box, terminals and armored thermocouple core, and it is widely used in temperature detection in industrial production.
[0004] While existing detachable armored thermocouples can meet the needs of most scenarios, they cannot be quickly disassembled for inspection to extend their service life when the equipment is damaged or during regular equipment checks. Therefore, a detachable armored thermocouple is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a detachable armored thermocouple, which aims to improve the problem that the existing technology cannot quickly disassemble the thermocouple for maintenance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A detachable armored thermocouple includes a housing and a sheath. An outer tube is fixedly connected to the outside of the housing, a rotating plate is fixedly connected to the outside of the outer tube, a cover is rotatably connected to the outside of the rotating plate, a snap-fit mechanism is installed on the outside of the housing, a fixing rod is fixedly connected to the bottom of the housing, a connecting mechanism is installed on the outside of the fixing rod, a sealing ring is fixedly connected to the outside of the fixing rod, and the sheath is slidably connected inside the sealing ring. The snap-fit mechanism includes a plug-in assembly and a stabilizing assembly. The plug-in assembly includes a housing, which is fixedly connected to the outside of the housing. A pin is slidably connected inside the housing, a spring is sleeved on the outside of the pin, and a limit plate is fixedly connected to the outside of the pin.
[0008] As a further description of the above technical solution:
[0009] The stabilizing component includes a plate, which is fixedly connected to the outside of the cover. A slot is provided in the middle of the plate, and the pin engages with the slot.
[0010] As a further description of the above technical solution:
[0011] The pin is externally fixedly connected to a pull ring;
[0012] As a further description of the above technical solution:
[0013] The connecting mechanism includes a sliding component and a fixing component. The sliding component includes a connecting tube, which is slidably connected to the outside of the fixing rod and the sleeve. Movable ring blocks are slidably connected to the outside of both ends of the connecting tube. Positioning rings are fixedly connected to both ends of the connecting tube. Springs are fixedly connected to both ends of the outside of the connecting tube. The ends of the two springs are fixedly connected to the inside of the two movable ring blocks.
[0014] As a further description of the above technical solution:
[0015] The fixing component includes multiple locking blocks, all of which are disposed inside the connecting tube. Two movable ring blocks are slidably connected to the outside of the multiple locking blocks. The fixing rod and the outside of the sleeve are both fixedly connected with collars, and the collars are engaged with the locking blocks.
[0016] As a further description of the above technical solution:
[0017] The fixed rod has an insertion hole on its outside, and the sleeve is fixedly connected to the insertion rod, which is engaged with the insertion hole.
[0018] As a further description of the above technical solution:
[0019] A handle is fixedly connected to the outside of the lid.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the elasticity of the spring enables the rapid opening and closing of the equipment, facilitating the inspection of the internal parts of the housing and improving the service life of the equipment. At the same time, the buckle design makes it convenient for users to use and improves work efficiency.
[0022] 2. In this utility model, the cooperation between the spring and the locking block solves the problem of the sleeve being inconvenient to replace after a long service life, so as to ensure the safety of the staff and the service life of the equipment. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a detachable armored thermocouple proposed in this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of a detachable armored thermocouple rotating plate proposed in this utility model;
[0025] Figure 3 This is a cross-sectional schematic diagram of the snap-fit mechanism of a detachable armored thermocouple proposed in this utility model.
[0026] Figure 4 This is a cross-sectional schematic diagram of the connection mechanism for a detachable armored thermocouple proposed in this utility model.
[0027] Figure 5 This is a schematic diagram of the sealing ring of a detachable armored thermocouple proposed in this utility model.
[0028] Legend:
[0029] 1. Cover; 2. Handle; 3. Outer tube; 4. Housing; 5. Sleeve; 6. Moving ring block; 7. Insert plate; 8. Slot; 9. Outer shell; 10. Rotating plate; 11. Pin; 12. Spring 1; 13. Limiting plate; 14. Pull ring; 15. Fixing rod; 16. Sealing ring; 17. Spring 2; 18. Positioning ring; 19. Collar; 20. Locking block; 21. Connecting tube; 22. Insert rod; 23. Insertion hole. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-3This utility model provides an embodiment of a detachable armored thermocouple, comprising a housing 4 and a sheath 5. An outer tube 3 is fixedly connected to the outside of the housing 4, through which wiring can be connected. A rotating plate 10 is fixedly connected to the outside of the outer tube 3, through which a cover 1 can be rotated. The cover 1 is rotatably connected to the outside of the rotating plate 10, which protects the housing 4 from external interference and effectively fixes the equipment. A snap-fit mechanism is installed on the outside of the housing 4, through which the cover 1 can be quickly opened. A fixing rod 15 is fixedly connected to the bottom of the housing 4, through which the fixing rod 15 can be connected to the sheath 5. A connecting mechanism is installed on the outside of the fixing rod 15, through which the sheath 5 and the fixing rod 15 can be connected more tightly. A sealing ring 16 is fixedly connected to the outside of the fixing rod 15, through which the sealing ring 16 can stabilize the sheath 5 and the fixing rod 15. The sheath 5 is slidably connected inside the sealing ring 16. The latching mechanism includes a plug-in assembly and a stabilizing assembly. The plug-in assembly includes a housing 9, which is fixedly connected to the outside of the housing 4. The housing 9 protects the internal parts. A pin 11 is slidably connected inside the housing 9, which can tightly fix the cover 1 to the top of the housing 4. A spring 12 is sleeved on the outside of the pin 11, which can quickly return the pin 11 to its original position. A limit plate 13 is fixedly connected to the outside of the pin 11, which can prevent the pin 11 from popping out due to excessive elasticity. The stabilizing assembly includes a plate 7, which is fixedly connected to the outside of the cover 1. The plate 7 allows the cover 1 and the housing 4 to be better latched. A slot 8 is opened in the middle of the plate 7, and the pin 11 is latched into the slot 8. The latching of the two makes the device more secure. A pull ring 14 is fixedly connected to the outside of the pin 11, which allows the user to operate it more conveniently.
[0032] Reference Figure 4 and Figure 5The connecting mechanism includes a sliding component and a fixing component. The sliding component includes a connecting tube 21, which is slidably connected to the outside of the fixing rod 15 and the sleeve 5, connecting the fixing rod 15 and the sleeve 5 together. Moving ring blocks 6 are slidably connected to both outer ends of the connecting tube 21, facilitating rapid sliding and pressing to improve work efficiency. Positioning rings 18 are fixedly connected to both ends of the connecting tube 21 to prevent the moving ring blocks 6 from moving out of the fixed area. Springs 17 are fixedly connected to both outer ends of the connecting tube 21, with the ends of the two springs 17 fixedly connected to the inner sides of the two moving ring blocks 6. The elasticity of the springs 17 allows the moving ring blocks 6 to be quickly returned to their original position. The fixing component includes multiple locking blocks 20. Each locking block 20 is located inside the connecting pipe 21, which can better fix the fixing rod 15 and the sleeve 5. Two moving ring blocks 6 are slidably connected to the outside of the multiple locking blocks 20. The fixing rod 15 and the sleeve 5 are both fixedly connected to the outside of the collar 19. The collar 19 and the locking block 20 are interlocked with each other, and the interlocking action makes the equipment more stable. The fixing rod 15 has an insertion hole 23 on the outside, and the sleeve 5 is fixedly connected to the outside of the insertion rod 22. The insertion rod 22 and the insertion hole 23 are interlocked with each other, and the interlocking action makes the equipment run stably and prevents damage to the equipment due to unstable installation. The cover 1 is fixedly connected to the outside of the handle 2, which allows the user to easily open the cover 1 for maintenance.
[0033] Working principle: First, when it is necessary to inspect the inside of the housing 4, the pin 11 can be pulled. At this time, the limiting plate 13 will move with the pin 11 and squeeze the spring 12. When the pin 11 is completely pulled out of the slot 8, the cover 1 is opened along the rotating plate 10. At this time, the inside can be inspected, which extends the service life of the equipment. When the work is finished, the cover 1 is put back on, and the hand holding the pin 11 is released. Due to the elasticity, the spring 12 will quickly return to the original position and insert the pin 11 into the slot 8, which greatly improves the user's work efficiency.
[0034] Secondly, when it is necessary to snap the sleeve 5 and the fixing rod 15 together, by moving the moving ring block 6 to both sides and squeezing the second spring 17, the locking block 20 inside the connecting tube 21 will retract into the connecting tube 21. Then, insert the sleeve 5 and insert the insertion rod 22 into the insertion hole 23 to secure it. Since there is a sealing ring 16 outside the fixing rod 15 and the sleeve 5, the two will be tightly connected. Then, release your hand. Due to the elasticity of the second spring 17, the moving ring block 6 will quickly return to the center and squeeze the locking block 20, which will be inserted into the collar 19 outside the fixing rod 15 and the sleeve 5, thus snapping the sleeve 5 and the fixing rod 15 together tightly and quickly.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A detachable armored thermocouple, comprising a housing (4) and a sheath (5), characterized in that: The outer tube (3) is fixedly connected to the outside of the housing (4), the rotating plate (10) is fixedly connected to the outside of the outer tube (3), the cover (1) is rotatably connected to the outside of the rotating plate (10), the snap-fit mechanism is installed on the outside of the housing (4), the bottom of the housing (4) is fixedly connected to the fixing rod (15), the fixing rod (15) is installed with a connecting mechanism, the fixing rod (15) is fixedly connected to the outside of the sealing ring (16), and the sleeve (5) is slidably connected inside the sealing ring (16). The latching mechanism includes a plug-in assembly and a stabilizing assembly. The plug-in assembly includes a housing (9), which is fixedly connected to the outside of the housing (4). A pin (11) is slidably connected inside the housing (9). A spring (12) is sleeved on the outside of the pin (11). A limit plate (13) is fixedly connected to the outside of the pin (11).
2. The detachable armored thermocouple according to claim 1, characterized in that: The stabilizing component includes a plug plate (7), which is fixedly connected to the outside of the cover (1). A slot (8) is provided in the middle of the plug plate (7), and the pin (11) engages with the slot (8).
3. A detachable armored thermocouple according to claim 1, characterized in that: The pin (11) is externally fixedly connected to a pull ring (14).
4. A detachable armored thermocouple according to claim 1, characterized in that: The connecting mechanism includes a sliding component and a fixing component. The sliding component includes a connecting tube (21), which is slidably connected to the outside of the fixing rod (15) and the sleeve (5). Moving ring blocks (6) are slidably connected to the outside of both ends of the connecting tube (21). Positioning rings (18) are fixedly connected to both ends of the connecting tube (21). Springs (17) are fixedly connected to both ends of the outside of the connecting tube (21). The ends of the two springs (17) are fixedly connected to the inside of the two moving ring blocks (6).
5. A detachable armored thermocouple according to claim 4, characterized in that: The fixing component includes multiple locking blocks (20), all of which are disposed inside the connecting tube (21). Two movable ring blocks (6) are slidably connected to the outside of the multiple locking blocks (20). The fixing rod (15) and the sleeve (5) are both fixedly connected with collars (19), and the collars (19) are engaged with the locking blocks (20).
6. A detachable armored thermocouple according to claim 1, characterized in that: The fixing rod (15) has an insertion hole (23) on its outside, and the sleeve (5) has a fixed connection to the outside of the insertion rod (22), and the insertion rod (22) and the insertion hole (23) are engaged with each other.
7. A detachable armored thermocouple according to claim 1, characterized in that: The cover (1) is externally fixedly connected to a handle (2).