Thermal resistor elastic protection device

Abstract

The utility model discloses an elastic protection device for a thermal resistor. The elastic protection device comprises a resistance tube, the fixed ring is arranged outside the resistance tube, and a slot is formed in the fixed ring; the arc-shaped mounting plates are arranged outside the fixing ring, the number of the arc-shaped mounting plates is four, the arc-shaped mounting plates are annularly distributed at equal intervals, sliding grooves are formed in the arc-shaped mounting plates, arc-shaped buffer plates are arranged in the sliding grooves, and the arc-shaped buffer plates are in sliding fit with the sliding grooves; one end of the arc-shaped buffer plate extends out of the arc-shaped mounting plate; and the springs are arranged in the sliding grooves, the number of the springs is nine, and the springs are fixedly connected with the arc-shaped mounting plate and the arc-shaped buffer plate correspondingly, and the structure solves the problems that an elastic protection mechanism is difficult to protect in all directions, and an elastic protection device is difficult to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal resistors, in particular to an elastic protective device for thermal resistors. Background Art

[0002] A thermal resistor is a sensor that measures temperature based on the property that the resistance of a metal conductor increases with temperature. It is mainly made of pure metal materials, such as platinum, copper, and nickel. Platinum thermal resistors have the highest measurement accuracy, so they are widely used in industrial temperature measurement and are even made into standard reference instruments. The principle of thermal resistor temperature measurement is based on the property that the resistance of a conductor or semiconductor changes with temperature to measure temperature. Most thermal resistors are made of pure metal materials, such as platinum and copper. Thermal resistors are widely used in industrial control, laboratories, and other fields. In industrial environments, it can be used to monitor and control temperature; in laboratories, it can be used to measure reaction temperatures in many chemical and physical experiments, where the elastic protective structure is an important component of the thermal resistor.

[0003] For example, the Chinese patent "Elastic Protection Device for Thermal Resistor" with announcement number CN220230736U includes a thermal resistor body, a connector is provided at the top of the thermal resistor body, a baffle and an elastic protection mechanism are vertically installed symmetrically with respect to the thermal resistor body on the bottom surface of the connector, a mounting plate is provided inside the elastic protection mechanism, a buffer rod is provided on the surface of the mounting plate, a limit rod is provided on the surface of the baffle, a limit cavity is provided on the end surface of the limit rod, one end of the buffer rod is inserted into the limit cavity, a spring is provided inside the limit cavity, one end of the spring is fixed to the end surface of the buffer rod, an arc plate is installed on the mounting plate, an elastic plate is provided on the outside of the arc plate, a flow channel is provided on the outer surface of the elastic plate, and multiple flow channels are provided, and multiple flow channels are equidistantly provided on the outer surface of the elastic plate, multiple buffer rods and limit rods are provided, and are equidistantly installed on the surfaces of the mounting plate and the baffle respectively, the outer diameter of the buffer rod is equal to the inner diameter of the limit cavity, and one end of the elastic plate is a conical structure.

[0004] Although the above-mentioned prior art can realize elastic protection of thermal resistors, in actual use, on the one hand, the elastic protection mechanism is difficult to provide all-round protection. During the use of the thermal resistor, the elastic protection mechanism is not fully set up, resulting in damage to the thermal resistor due to impact during use, thereby shortening the service life of the thermal resistor. On the other hand, the elastic protection device is difficult to adjust, resulting in the need to replace the elastic protection device every time the thermal resistor is replaced, thereby reducing the adaptability of the elastic protection device to thermal resistors of different calibers. Therefore, it does not meet existing needs. In this regard, we propose an elastic protection device for thermal resistors. Utility Model Content

[0005] The utility model aims to provide a thermal resistor elastic protection device to solve the problems that the elastic protection mechanism proposed in the above background technology is difficult to provide all-round protection and the elastic protection device is difficult to adjust.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal resistor elastic protection device, including a resistor tube; and also including:

[0007] A fixing ring is arranged outside the resistor tube, three fixing rings are arranged and are evenly distributed, a slot is arranged inside the fixing ring, and the resistor tube passes through the slot and extends to the bottom of the fixing ring;

[0008] An arc-shaped mounting plate is arranged outside the fixing ring, four arc-shaped mounting plates are arranged, and the arc-shaped mounting plates are distributed in an annular manner with equal spacing, a slide groove is arranged inside the arc-shaped mounting plate, an arc-shaped buffer plate is arranged inside the slide groove, the arc-shaped buffer plate is slidably matched with the slide groove, and one end of the arc-shaped buffer plate extends to the outside of the arc-shaped mounting plate;

[0009] A spring is arranged inside the slide groove, nine springs are arranged, and the springs are fixedly connected to the arc-shaped mounting plate and the arc-shaped buffer plate respectively.

[0010] Preferably, four threaded holes are arranged inside the side wall of the fixing ring, and the threaded holes are distributed at equal intervals. A threaded rod is arranged inside the threaded hole, and one end of the threaded rod extends to the inside of the slot.

[0011] Preferably, a mounting seat is provided at one end of the threaded rod located inside the slot, and the mounting seat is fixedly connected to the threaded rod, and an arc-shaped rubber block is provided at the other end of the mounting seat, and the arc-shaped rubber block is fixedly connected to the mounting seat, and the arc-shaped rubber block contacts and squeezes the resistor tube.

[0012] Preferably, a connecting rod is provided between the fixing ring and the arc-shaped mounting plate, and the connecting rod is fixedly connected to the arc-shaped mounting plate and the fixing ring respectively.

[0013] Preferably, a junction box is provided at the upper end of the resistor tube, and the junction box is fixedly connected to the resistor tube.

[0014] Preferably, an electrical interface is provided on one side of the exterior of the junction box.

[0015] Preferably, a protective cover is provided at the upper end of the junction box, and the protective cover is connected to the junction box by threaded engagement.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model can absorb the impact generated by the surroundings through the arc buffer plate and the arc mounting plate. During the use of the thermal resistor, the thermal resistor moves and collides in the detection environment, and the collision will impact the arc buffer plate. When the arc buffer plate is impacted, the arc buffer plate slides in the slide groove and the arc buffer plate will squeeze the spring installed in the arc mounting plate. The squeezing causes the spring to deform, and absorbs the impact force during the deformation of the spring to prevent the impact force from directly acting on the resistor tube and causing damage to the resistor tube. When the impact is absorbed, the spring is reset, and the force generated during the spring reset process pushes the arc buffer plate to move in the slide groove until the spring is in the initial state. At this time, the arc buffer plate moves to its original position, which enhances the all-round protection performance of the resistor tube, thereby increasing the service life of the thermal resistor.

[0018] 2. The utility model can make the elastic protection device adapt to resistance tubes of different calibers through the slot and the threaded rod. When the thermal resistor is used, first align the resistance tube with the slot and push the resistance tube into the slot until the resistance tube reaches a suitable position, and then rotate the threaded rod. At this time, the threaded rod rotates in the threaded hole, so that the threads on the threaded rod move along the axial direction of the threaded rod. When the threaded rod is inserted into the threaded hole and rotated, each thread on the threaded rod will fit tightly with the corresponding part in the threaded hole, so that the threaded rod moves toward the inside of the slot until the arc-shaped rubber block on the threaded rod contacts and squeezes the outer wall of the resistance tube, so that the resistance tube is fixed. When replacing the thermal resistor of a different caliber, insert the resistance tube into the slot and rotate the threaded rod, so that the arc-shaped rubber block on the threaded rod contacts and squeezes the resistance tube, thereby improving the adaptability of the elastic protection device to resistance tubes of different calibers.

[0019] 3. The utility model can absorb the impact transmitted from the connecting rod by providing an arc-shaped rubber block. After the resistor tube is fixed, the arc-shaped rubber block contacts and clings to the outer wall of the resistor tube. When the thermal resistor is impacted, most of the impact is first absorbed by the arc-shaped buffer plate, and the remaining impact is transmitted to the fixing ring through the connecting rod. At this time, the impact on the fixing ring is squeezed by the arc-shaped rubber block on the threaded rod. When the arc-shaped rubber block is squeezed, the arc-shaped rubber block can quickly bear the impact force and deform through the molecular chain and cross-linking structure inside the arc-shaped rubber block. The deformation enables the arc-shaped rubber block to disperse and absorb the impact energy, thereby avoiding damage to the resistor tube caused by the impact. At the same time, the friction between the threaded rod and the resistor tube can be increased through the arc-shaped rubber block, so that the resistor tube is fixed more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the internal structure of the utility model;

[0021] Figure 2 It is a top view of the internal structure of the utility model;

[0022] Figure 3 It is a partial enlarged view of the fixing structure of the utility model;

[0023] Figure 4 For the utility model Figure 2 A partial enlarged view of area A.

[0024] In the figure: 1. resistor tube; 2. fixing ring; 3. connecting rod; 4. arc-shaped mounting plate; 5. slide groove; 6. arc-shaped buffer plate; 7. spring; 8. junction box; 9. electrical interface; 10. protective cover; 11. slot; 12. threaded rod; 13. arc-shaped rubber block; 14. mounting seat; 15. threaded hole. DETAILED DESCRIPTION

[0025] 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, rather than all of the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a thermal resistor elastic protection device, including a resistor tube 1; and also including:

[0027] A fixing ring 2 is arranged outside the resistor tube 1. Three fixing rings 2 are arranged and are evenly distributed. A slot 11 is arranged inside the fixing ring 2. The resistor tube 1 passes through the slot 11 and extends to the bottom of the fixing ring 2.

[0028] The arc-shaped mounting plate 4 is arranged outside the fixing ring 2. Four arc-shaped mounting plates 4 are arranged and are equidistantly distributed in a ring shape. A slide groove 5 is arranged inside the arc-shaped mounting plate 4. An arc-shaped buffer plate 6 is arranged inside the slide groove 5. The arc-shaped buffer plate 6 is slidably matched with the slide groove 5, and one end of the arc-shaped buffer plate 6 extends to the outside of the arc-shaped mounting plate 4.

[0029] The spring 7 is arranged inside the slide groove 5. Nine springs 7 are provided, and the springs 7 are fixedly connected to the arc-shaped mounting plate 4 and the arc-shaped buffer plate 6 respectively.

[0030] During use, during the use of the thermal resistor, the thermal resistor moves and collides in the detection environment, and the collision will have an impact on the arc buffer plate 6. When the arc buffer plate 6 is impacted, the arc buffer plate 6 slides inside the slide groove 5 and the arc buffer plate 6 will squeeze the spring 7 installed inside the arc mounting plate 4. The squeezing causes the spring 7 to deform, and absorbs the impact force during the deformation of the spring 7 to prevent the impact force from directly acting on the resistor tube 1 and causing damage to the resistor tube 1. When the impact is absorbed, the spring 7 is reset, and the force generated during the reset of the spring 7 pushes the arc buffer plate 6 to move inside the slide groove 5 until the spring 7 is in the initial state, at which time the arc buffer plate 6 moves to its original position.

[0031] See also Figure 2 and Figure 3 Four threaded holes 15 are arranged inside the side wall of the fixing ring 2, and the threaded holes 15 are evenly distributed. A threaded rod 12 is arranged inside the threaded hole 15, and one end of the threaded rod 12 extends to the inside of the slot 11, so that the resistor tube 1 of different calibers can be fixed by the threaded rod 12.

[0032] See also Figure 2 and Figure 4 A mounting seat 14 is provided at one end of the threaded rod 12 located inside the slot 11, and the mounting seat 14 is fixedly connected to the threaded rod 12. An arc-shaped rubber block 13 is provided at the other end of the mounting seat 14, and the arc-shaped rubber block 13 is fixedly connected to the mounting seat 14, and the arc-shaped rubber block 13 contacts and squeezes the resistor tube 1, so that the arc-shaped rubber block 13 can absorb the impact.

[0033] See also Figure 1 A connecting rod 3 is provided between the fixing ring 2 and the arc-shaped mounting plate 4, and the connecting rod 3 is fixedly connected to the arc-shaped mounting plate 4 and the fixing ring 2 respectively, so that the arc-shaped mounting plate 4 and the fixing ring 2 are connected through the connecting rod 3.

[0034] See also Figure 1 A junction box 8 is provided at the upper end of the resistor tube 1, and the junction box 8 is fixedly connected to the resistor tube 1, so as to facilitate receiving and transmitting detection data through the junction box 8.

[0035] See also Figure 1 An electrical interface 9 is provided on one side of the outside of the junction box 8 to facilitate connection with the circuit through the electrical interface 9.

[0036] See also Figure 1 A protective cover 10 is provided at the upper end of the junction box 8, and the protective cover 10 is connected to the junction box 8 by threaded engagement, so that the interface on the junction box 8 can be protected by the protective cover 10.

[0037] Working principle: When the thermal resistor is used, first align the resistor tube 1 with the slot 11 and push the resistor tube 1 into the slot 11 until the resistor tube 1 reaches a suitable position, and then rotate the threaded rod 12. At this time, the threaded rod 12 rotates in the threaded hole 15, so that the thread on the threaded rod 12 moves along the axial direction of the threaded rod 12. When the threaded rod 12 is inserted into the threaded hole 15 and rotated, each thread on the threaded rod 12 will fit tightly with the corresponding part in the threaded hole 15, so that the threaded rod 12 moves toward the inside of the slot 11 until the arc-shaped rubber block 13 on the threaded rod 12 contacts and squeezes the outer wall of the resistor tube 1, so that the resistor tube 1 is fixed. When replacing a thermal resistor of a different caliber, insert the resistor tube 1 into the slot 11 and rotate the threaded rod 12 so that the arc-shaped rubber block 13 on the threaded rod 12 contacts And squeeze the resistor tube 1. After the resistor tube 1 is fixed, the arc-shaped rubber block 13 contacts and clings to the outer wall of the resistor tube 1. When the thermal resistor is impacted, most of the impact is first absorbed by the arc-shaped buffer plate 6, and the remaining impact is transmitted to the fixing ring 2 through the connecting rod 3. At this time, the impact on the fixing ring 2 is squeezed by the arc-shaped rubber block 13 on the threaded rod 12 to squeeze the resistor tube 1. When the arc-shaped rubber block 13 is squeezed, the arc-shaped rubber block 13 can quickly bear the impact force and deform through the molecular chain and cross-linking structure inside the arc-shaped rubber block 13. The deformation enables the arc-shaped rubber block 13 to disperse and absorb the impact energy, thereby avoiding damage to the resistor tube 1 caused by the impact. At the same time, the friction between the threaded rod 12 and the resistor tube 1 can be increased through the arc-shaped rubber block 13, so that the resistor tube 1 is fixed more stably.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A thermal resistor elastic protection device, comprising a resistor tube (1); Features: Also includes: A fixing ring (2) is arranged outside the resistor tube (1), three fixing rings (2) are arranged, and the fixing rings (2) are evenly spaced, a slot (11) is arranged inside the fixing ring (2), and the resistor tube (1) passes through the slot (11) and extends to the bottom of the fixing ring (2); An arc-shaped mounting plate (4) is arranged outside the fixing ring (2), four arc-shaped mounting plates (4) are arranged, and the arc-shaped mounting plates (4) are equidistantly distributed in a ring shape, a slide groove (5) is arranged inside the arc-shaped mounting plate (4), an arc-shaped buffer plate (6) is arranged inside the slide groove (5), the arc-shaped buffer plate (6) is slidably matched with the slide groove (5), and one end of the arc-shaped buffer plate (6) extends to the outside of the arc-shaped mounting plate (4); A spring (7) is arranged inside the slide groove (5), nine springs (7) are arranged, and the springs (7) are fixedly connected to the arc-shaped mounting plate (4) and the arc-shaped buffer plate (6) respectively.

2. The thermal resistor elastic protection device according to claim 1, characterized in that: Four threaded holes (15) are arranged inside the side wall of the fixing ring (2), and the threaded holes (15) are distributed at equal intervals. A threaded rod (12) is arranged inside the threaded hole (15), and one end of the threaded rod (12) extends to the inside of the slot (11).

3. The thermal resistor elastic protection device according to claim 2, characterized in that: A mounting seat (14) is provided at one end of the threaded rod (12) located inside the slot (11), and the mounting seat (14) is fixedly connected to the threaded rod (12); an arc-shaped rubber block (13) is provided at the other end of the mounting seat (14), and the arc-shaped rubber block (13) is fixedly connected to the mounting seat (14), and the arc-shaped rubber block (13) contacts and squeezes the resistor tube (1).

4. The thermal resistor elastic protection device according to claim 1, characterized in that: A connecting rod (3) is provided between the fixing ring (2) and the arc-shaped mounting plate (4), and the connecting rod (3) is fixedly connected to the arc-shaped mounting plate (4) and the fixing ring (2) respectively.

5. The thermal resistor elastic protection device according to claim 1, characterized in that: A junction box (8) is provided at the upper end of the resistor tube (1), and the junction box (8) is fixedly connected to the resistor tube (1).

6. A thermal resistor elastic protection device according to claim 5, characterized in that: An electrical interface (9) is provided on one side of the exterior of the junction box (8).

7. The thermal resistor elastic protection device according to claim 5, characterized in that: A protective cover (10) is provided at the upper end of the junction box (8), and the protective cover (10) is connected to the junction box (8) by threaded engagement.

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