Fixed armored explosion-proof thermocouple

Abstract

The utility model discloses a kind of fixed armoured explosion-proof thermocouple, including junction box, the side of junction box top is equipped with outgoing line head;The bottom of junction box is fixed with detection tube, and detection tube is inserted into the inside of protective tube and constitutes sliding mechanism, and the top of protective tube is fixed with sliding block, the outside end of sliding block is inserted into the inside of sliding slot and constitutes sliding mechanism, and the bottom of sliding block is rotatably connected with pulley, the bottom of pulley is attached in the bottom of sliding slot and constitutes sliding mechanism, and the bottom of junction box is slidably connected with sealing ring, and the bottom of sealing ring is inserted into the inside of junction box and constitutes limiting mechanism;Equal angle is equipped with through-hole on the protective tube. The fixed armoured explosion-proof thermocouple is installed with pulley, through the attachment of pulley and sliding slot, then the hard friction between sliding block and sliding slot can be avoided, so the abrasion between sliding block and sliding slot can be reduced, thereby the service life of protective tube explosion-proof is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermocouple technology, specifically to a fixed armored explosion-proof thermocouple. Background Technology

[0002] Thermocouples can monitor temperature data in real time and trigger alarms or safety mechanisms (such as cutting off power or starting the cooling system) when the temperature exceeds the safe range to prevent equipment damage or accidents.

[0003] When existing thermocouples are in use, the flow of liquid can impact the sensing end of the thermocouple, thus damaging the thermocouple through impact.

[0004] To address the aforementioned deficiencies, the fixed armored explosion-proof thermocouple with publication number CN220380635U, through its explosion-proof components, effectively strengthens the overall structural strength of the protective tube. While providing protection, it does not affect the temperature transmission and detection. Furthermore, the cooperation between the lifting ring and the guide groove allows the protective tube to rotate, further reducing the impact from the object being tested. When used together, these features effectively improve the explosion-proof performance of the thermocouple.

[0005] In actual use of the above-mentioned device, although the flow channel is used to protect the thermocouple from explosion, the assembly ring slides inside the lifting ring. Due to the fast sliding efficiency, wear will occur between the assembly ring and the lifting ring, which will affect subsequent use.

[0006] Therefore, we proposed a fixed armored explosion-proof thermocouple that can effectively solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a fixed armored explosion-proof thermocouple to solve the problem mentioned in the background art where the assembly ring slides inside the lifting ring, which leads to wear between the assembly ring and the lifting ring due to the fast sliding efficiency, thus affecting subsequent use.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fixed armored explosion-proof thermocouple, including a junction box, wherein a wire outlet is provided on the side of the top of the junction box;

[0009] The bottom of the junction box is fixed with a detection tube, which extends into the interior of the protective tube to form a sliding mechanism. The top of the protective tube is fixed with a slider, the outer end of which extends into the interior of the slide groove to form a sliding mechanism. The bottom of the slider is rotatably connected with a pulley, the bottom of which is in contact with the bottom of the slide groove to form a sliding mechanism. The bottom of the junction box is slidably connected with a sealing ring, and the bottom of the sealing ring extends into the interior of the junction box to form a limiting mechanism.

[0010] The protective tube is provided with through holes at equal angles, and anti-impact strips are provided at equal angles on the protective tube.

[0011] Preferably, there is a gap between the through hole and the anti-impact strip, and the anti-impact strip is arranged in an arc shape.

[0012] Preferably, the top of the sealing ring is parallel to the bottom of the slide groove, and the slide groove has symmetrical openings, which are located inside the junction box.

[0013] Preferably, a locking block is slidably connected inside the bottom of the junction box, and the bottom of the outer end of the locking block is arc-shaped.

[0014] Preferably, the outer end of the card block extends into the interior of the card groove to form a locking mechanism, and the card groove is formed inside the sealing ring.

[0015] Preferably, the inner end of the card block is connected to a spring, and the inner end of the spring is connected inside the junction box to form a limiting mechanism.

[0016] Preferably, the inner end of the locking block is connected to a pull rope, and the top of the pull rope extends out of the inside of the junction box through a roller to form a sliding mechanism. The roller is connected to the inside of the junction box through a bearing, and there is a gap between the pull rope and the spring.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the fixed armored explosion-proof thermocouple can reduce wear and is replaceable. The use of pulleys can reduce wear, thereby increasing the service life of the protective tube, and the use of locking blocks allows the protective tube to be replaced. The specific details are as follows:

[0018] Equipped with pulleys, the pulleys fit into the groove, thus avoiding hard friction between the slider and the groove, reducing wear between the slider and the groove, and improving the service life of the explosion-proof protective tube.

[0019] It is equipped with a locking block. By moving the locking block, the locking block can be disengaged from the inside of the locking slot, and the protective tube can be disassembled and replaced individually, thereby avoiding wear and tear on the protective tube and affecting the explosion-proof effect.

[0020] The device is equipped with anti-collision strips. Through holes at equal angles are provided on the protective pipe, and anti-collision strips are provided at equal angles on the protective pipe. The anti-collision strips can reduce the impact of water flow on the protective pipe, thus protecting the detection pipe.

[0021] A spring is provided, which is connected to the inner end of the locking block. The inner end of the spring is connected to the inside of the junction box to form a limiting mechanism, thereby enabling the spring to limit the locking block and improving the stability of the locking block.

[0022] A pull rope is provided, which is connected to the inner end of the locking block. The top of the pull rope extends out of the junction box through a roller to form a sliding mechanism. The roller is connected to the inside of the junction box through a bearing. There is a gap between the pull rope and the spring. The movement of the pull rope can drive the locking block to disengage from the locking slot, thereby facilitating the replacement of the protective tube. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection structure between the junction box and the wire outlet of this utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure between the protective tube and the anti-impact strip of this utility model;

[0026] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the protective tube after it has been moved.

[0028] Figure 6 This is a schematic diagram of the connection structure between the card block and the card slot of this utility model.

[0029] In the diagram: 1. Junction box; 2. Outlet wire; 3. Detection tube; 4. Protective tube; 5. Through hole; 6. Anti-impact strip; 7. Slider; 8. Slide groove; 9. Pulley; 10. Sealing ring; 11. Locking block; 12. Locking groove; 13. Spring; 14. Pull rope; 15. Roller. 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] Example 1: A fixed armored explosion-proof thermocouple solves the problem that existing assembly rings slide within the lifting ring, leading to wear between the assembly ring and the lifting ring due to the rapid sliding efficiency, thus affecting subsequent use. The use of pulley 9 reduces wear and improves service life. The following is disclosed:

[0032] A wire outlet 2 is provided on the side of the top of the junction box 1; a detection tube 3 is fixed at the bottom of the junction box 1, and the detection tube 3 extends into the interior of the protective tube 4 to form a sliding mechanism; a slider 7 is fixed at the top of the protective tube 4, and the outer end of the slider 7 extends into the interior of the slide groove 8 to form a sliding mechanism; a pulley 9 is rotatably connected to the bottom of the slider 7, and the bottom of the pulley 9 is attached to the bottom of the slide groove 8 to form a sliding mechanism; a sealing ring 10 is slidably connected to the bottom of the junction box 1, and the bottom of the sealing ring 10 extends into the interior of the junction box 1 to form a limiting mechanism; through holes 5 are provided at equal angles on the protective tube 4, and anti-impact strips 6 are provided at equal angles on the protective tube 4; there is a gap between the through holes 5 and the anti-impact strips 6; the anti-impact strips 6 are arc-shaped; the top of the sealing ring 10 is parallel to the bottom of the slide groove 8; openings are symmetrically provided in the slide groove 8; and the openings on the slide groove 8 are opened inside the junction box 1.

[0033] refer to Figures 1 to 5 The junction box 1 is connected to the object to be tested via a threaded connection. The wire outlet 2 can be connected to an external wiring harness. The temperature of the liquid can be detected in real time through the detection tube 3. To prevent the detection tube 3 from being damaged by impact, the liquid flows and impacts the anti-impact strip 6. The anti-impact strip 6 can drive the protective tube 4 to rotate, thereby reducing the damage caused by the impact. The through hole 5 allows the liquid to flow onto the detection tube 3 for testing. The rotation of the protective tube 4 causes the slider 7 to slide inside the slide groove 8. The sliding of the slider 7 will drive the pulley 9 to move synchronously, so that the pulley 9 can rub against the surface of the slide groove 8, thereby reducing the wear between the slider 7 and the slide groove 8, thus improving the service life of the protective tube 4. The protective tube 4 can achieve the function of explosion protection for the detection tube 3.

[0034] Example 2: A fixed armored explosion-proof thermocouple solves the problem of reduced performance of the protective tube 4 after wear in Example 1. By disengaging the locking block 11 from the locking slot 12, the protective tube 4 can be easily disassembled and replaced. The following is disclosed:

[0035] A locking block 11 is slidably connected inside the bottom of the junction box 1, and the bottom of the outer end of the locking block 11 is arc-shaped. The outer end of the locking block 11 extends into the interior of the locking groove 12 to form a locking mechanism, and the locking groove 12 is opened inside the sealing ring 10.

[0036] refer to Figure 3 and Figure 6When the protective tube 4 needs to be replaced, the pull rope 14 is pulled, which moves the pull rope 14 and drives the locking block 11 to move through the roller 15. The locking block 11 then moves and disengages from the locking groove 12. The movement of the locking block 11 compresses the spring 13, causing the spring 13 to be compressed. Then, the sealing ring 10 is pulled, which disengages the sealing ring 10 from the junction box 1. This causes the slide 8 to disengage from the sealing ring 10, exposing the bottom opening of the slide 8. Then, the protective tube 4 is pulled, which causes the protective tube 4 to move the slider 7 through the slide 8 to separate, thus achieving the purpose of disassembling the protective tube 4.

[0037] Example 3: Based on Example 2, a locking mechanism between the card block 11 and the card slot 12 is also disclosed, which discloses:

[0038] The inner end of the locking block 11 is connected to a spring 13, and the inner end of the spring 13 is connected to the inside of the junction box 1 to form a limiting mechanism. The inner end of the locking block 11 is connected to a pull rope 14, and the top of the pull rope 14 extends out of the inside of the junction box 1 through a roller 15 to form a sliding mechanism. The roller 15 is connected to the inside of the junction box 1 through a bearing, and there is a gap between the pull rope 14 and the spring 13.

[0039] refer to Figure 3 and Figure 6 When the protective tube 4 needs to be installed, the detection tube 3 is inserted into the interior of the protective tube 4, causing the protective tube 4 to drive the slider 7 into the interior of the slide groove 8. The movement of the protective tube 4 will pass through the sealing ring 10 and push the sealing ring 10, allowing the bottom of the sealing ring 10 to extend into the interior of the junction box 1, sealing the opening on the slide groove 8. This allows the slider 7 in the slide groove 8 to slide normally. The movement of the sealing ring 10 will squeeze the locking block 11, causing the locking block 11 to slide into the interior of the junction box 1. The movement of the locking block 11 will then squeeze the spring 13, causing the spring 13 to be compressed. After the sealing ring 10 moves to the position, the force of the spring 13 pushes the locking block 11 into the interior of the locking groove 12, thus fixing the sealing ring 10 to the bottom of the junction box 1, thereby achieving the purpose of installing the protective tube 4.

[0040] Working principle: When using this type of fixed armored explosion-proof thermocouple, firstly, refer to... Figures 1 to 5The junction box 1 is connected to the object to be detected via a threaded connection. The wire outlet 2 can be connected to an external wire harness. The temperature of the liquid can be detected in real time through the detection tube 3. In order to prevent the detection tube 3 from being damaged by impact, the anti-impact strip 6 can drive the protective tube 4 to rotate. The liquid can flow onto the detection tube 3 for detection through the through hole 5. The sliding of the slider 7 will drive the pulley 9 to move synchronously, so that the pulley 9 can rub against the surface of the slide groove 8, thus improving the service life of the protective tube 4. The protective tube 4 can achieve the function of explosion protection for the detection tube 3.

[0041] refer to Figure 3 and Figure 6 When the protective tube 4 needs to be replaced, the pull rope 14 is pulled, which moves the pull rope 14 and drives the locking block 11 to move through the roller 15. The locking block 11 then moves and disengages from the locking groove 12. Then the sealing ring 10 is pulled, which disengages the sealing ring 10 from the junction box 1. The sliding groove 8 then disengages from the sealing ring 10. Then the protective tube 4 is pulled, which drives the slider 7 to separate through the sliding groove 8, thus achieving the purpose of disassembling the protective tube 4.

[0042] refer to Figure 3 and Figure 6 When the protective tube 4 needs to be installed, the detection tube 3 is inserted into the interior of the protective tube 4, and the protective tube 4 moves and passes through the sealing ring 10, then pushes the sealing ring 10 so that the bottom of the sealing ring 10 can extend into the interior of the junction box 1, thereby allowing the slider 7 in the slide groove 8 to slide normally. The movement of the sealing ring 10 will squeeze the locking block 11, thereby causing the locking block 11 to slide into the interior of the junction box 1. Then the movement of the locking block 11 will squeeze the spring 13. After the sealing ring 10 moves to the position, the force of the spring 13 pushes the locking block 11 into the interior of the slot 12, thereby fixing the sealing ring 10 to the bottom of the junction box 1, thus achieving the purpose of installing the protective tube 4.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A fixed armored explosion-proof thermocouple, comprising a junction box (1), wherein a wire outlet (2) is provided on the side of the top of the junction box (1); Its features are, The bottom of the junction box (1) is fixed with a detection tube (3), and the detection tube (3) extends into the interior of the protective tube (4) to form a sliding mechanism. The top of the protective tube (4) is fixed with a slider (7), the outer end of the slider (7) extends into the interior of the slide groove (8) to form a sliding mechanism. The bottom of the slider (7) is rotatably connected with a pulley (9), the bottom of the pulley (9) is attached to the bottom of the slide groove (8) to form a sliding mechanism. The bottom of the junction box (1) is slidably connected with a sealing ring (10), and the bottom of the sealing ring (10) extends into the interior of the junction box (1) to form a limiting mechanism. The protective tube (4) is provided with through holes (5) at equal angles, and the protective tube (4) is provided with anti-impact strips (6) at equal angles.

2. The fixed armored explosion-proof thermocouple according to claim 1, characterized in that: There is a gap between the through hole (5) and the anti-impact strip (6), and the anti-impact strip (6) is arranged in an arc shape.

3. A fixed armored explosion-proof thermocouple according to claim 1, characterized in that: The top of the sealing ring (10) is parallel to the bottom of the slide groove (8), and the slide groove (8) has symmetrical openings, and the openings on the slide groove (8) are opened inside the junction box (1).

4. A fixed armored explosion-proof thermocouple according to claim 1, characterized in that: The junction box (1) has a sliding connection inside the bottom end with a locking block (11), and the bottom of the outer end of the locking block (11) is set in an arc shape.

5. A fixed armored explosion-proof thermocouple according to claim 4, characterized in that: The outer end of the card block (11) extends into the interior of the card groove (12) to form a locking mechanism, and the card groove (12) is opened inside the sealing ring (10).

6. A fixed armored explosion-proof thermocouple according to claim 5, characterized in that: The inner end of the card block (11) is connected to a spring (13), and the inner end of the spring (13) is connected to the inside of the junction box (1) to form a limiting mechanism.

7. A fixed armored explosion-proof thermocouple according to claim 5, characterized in that: The inner end of the card block (11) is connected to a pull rope (14), and the top of the pull rope (14) extends out of the inside of the junction box (1) through a roller (15) to form a sliding mechanism. The roller (15) is connected to the inside of the junction box (1) through a bearing, and there is a gap between the pull rope (14) and the spring (13).

Images