A compression spring platinum thermal resistor
By designing a compression spring platinum thermal resistor with a probe protection tube, a locking cap and a wire retrieval mechanism, the problem of long and inability to store the connection wire in the prior art is solved, and the effective storage and fixation of the thermal resistance connecting wire is achieved, which improves the maintenance and use convenience of the equipment.
Patent Information
- Application Number
- CN202420747522.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The connecting wires of existing compression spring platinum thermal resistors are long and cannot be stored, and are susceptible to corrosion and damage, and are inconvenient for subsequent maintenance and replacement.
A compression spring platinum thermal resistance including probe protection tube, locking cap, wire guard spring, wire plug, screw, mounting base, wire retracting box, wire retracting plate, wire hole, box cover and fixing mechanism is designed. Through the cooperation of studs and clamps, the storage and compression of the excess circuit is achieved.
It realizes convenient storage and fixation of thermal resistance connecting wires, avoids line loosening and corrosion, and simplifies the maintenance and replacement process.
Smart Images
Figure CN222733693U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of compression spring type thermal resistors, in particular to a compression spring platinum thermal resistor. Background Art
[0002] The compression spring platinum thermal resistor is a sensor that consists of two parts: a compression spring and a thermistor. It indirectly measures the change in temperature by measuring the change in resistance value. It uses the relationship between the temperature coefficient of the metal wire and the resistance-temperature characteristic to measure the temperature change. When the sensor is affected by external temperature changes, the metal wire will deform due to the increase in temperature, thereby changing the resistance value of the wire.
[0003] At present, the compression spring platinum thermistors in the prior art still have limitations in actual use. For example, the connecting wires of traditional compression spring platinum thermistors are generally relatively long. During the installation of the thermistor, most of the wires cannot be stored and are coiled on the equipment. However, if the equipment overflows liquid or gas, it is easy to be corroded and damaged, and it is not convenient for subsequent maintenance and replacement. Utility Model Content
[0004] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a compression spring platinum thermal resistor to solve the problems mentioned in the background technology.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A compression spring platinum thermal resistor, comprising a connecting wire, a probe protection tube is provided at the lower end of the connecting wire, a locking cap is provided at the lower end of the connecting wire, a mounting sleeve is clamped at the lower end of the locking cap, a wire protection spring is provided on the outer side of the connecting wire, a clamping tube is provided on the outer side of the wire protection spring, a screw is threadedly connected to the inner side of the clamping tube, a mounting seat is fixedly connected to the outer side of the connecting wire, a wire take-up box is fixedly installed on the outer side of the mounting seat, a wire take-up reel is fixedly installed on the inner side of the wire take-up box, wire holes are symmetrically opened on the inner side of the wire take-up box, one end of the connecting wire passes through the wire take-up box through the wire hole, one end of the connecting wire is wound around the outer side of the wire take-up reel, a box cover is rotatably connected to one side of the box opening of the wire take-up box, a fixing mechanism is provided on the other end of the box cover, the other end of the box cover is movably installed through the fixing mechanism and the wire take-up box, and a wire pressing mechanism is symmetrically provided on the outer side of the wire take-up box;
[0007] The fixing mechanism includes a first connecting plate and a second connecting plate, wherein the first connecting plate is fixedly connected to the upper end of the box cover, and the second connecting plate is fixedly connected to the upper end of the wire take-up box. A hand-tightening bolt is provided on the inner side of the first connecting plate, and the first connecting plate is fixedly installed by the hand-tightening bolt and the second connecting plate. The fixing mechanism can facilitate the fixing between the wire take-up box and the box cover;
[0008] The wire pressing mechanism includes a concave sleeve, which is symmetrically fixedly connected to the inner side of the wire taking-up box, a clamping block is slidably connected to the opposite side of the concave sleeve, a stud is symmetrically threadedly connected to the outer side of the wire taking-up box, a rotating block is fixedly installed on one end of the stud, and one end of the stud away from the rotating handle is threadedly extended into the inner side of the concave sleeve and is rotatably connected to the clamping block. Through the wire pressing structure, it is convenient to roll up the excess line on the wire taking-up reel and press the line body at the wire groove of the wire taking-up reel.
[0009] As a preferred technical solution, a through hole is provided on the inner side of the first connecting plate, and a screw hole is provided on the inner side of the second connecting plate. The threaded end of the hand-tightening bolt passes through the through hole and the screw hole for threaded installation. The through hole and the screw hole can be used to conveniently install the box cover and the wire receiving box in combination with the hand-tightening bolt.
[0010] As a preferred technical solution, the outer side of the clamp block is symmetrically provided with sliding grooves, and the end of the clamp block close to the stud is slidably connected to the inner side of the recessed sleeve through the sliding groove. The sliding groove can facilitate the sliding of the clamp block on the recessed sleeve.
[0011] As a preferred technical solution, a screw sleeve is fixedly installed on the outer side of the wire take-up box, and the end of the stud away from the rotary block is threadedly penetrated through the screw sleeve. The screw sleeve can facilitate the threaded extension and retraction of the stud on the wire take-up box.
[0012] As a preferred technical solution, an adhesive layer is fixedly connected to a side of the wire receiving box away from the box cover, and the adhesive layer can be used to conveniently fix the wire receiving box on the device.
[0013] In summary, the utility model mainly has the following beneficial effects:
[0014] First, when the box cover and the wire receiving box are opened and closed, the box cover is flipped over the wire receiving box, so that the first connecting plate on the box cover moves to the second connecting plate close to the wire receiving box, and then the first connecting plate and the second connecting plate are connected and fixed by hand-tightening bolts, so that the box cover and the wire receiving box can be opened and closed conveniently;
[0015] Second, according to the connection position of the connecting wire of the thermal resistor, wind the excess connecting wire on the take-up reel, and then rotate the stud according to the rotary block at the nearest position, so that the stud can be threaded and retracted on the take-up box. At the same time, the rotation of the stud pushes the clamping block to slide in the concave sleeve, and the clamping block extends into the wire groove of the take-up reel, which can press the wire body to prevent it from loosening, thereby facilitating the storage and fixation of the connecting wire of the thermal resistor. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 The utility model Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 It is a schematic diagram of the internal structure of the wire collection box of the utility model;
[0019] Figure 4 The utility model Figure 3 Enlarged view of point B in the middle.
[0020] Figure numerals: 1. Probe protection tube; 2. Locking cap; 201. Installation sleeve; 3. Wire protection spring; 4. Clamp tube; 5. Screw; 6. Connecting wire; 7. Mounting seat; 8. Box cover; 9. Wire pressing mechanism; 901. Concave sleeve; 902. Clamp block; 903. Stud; 904. Rotary block; 10. Adhesive layer; 11. Wire take-up box; 12. Fixing mechanism; 121. First connecting plate; 122. Second connecting plate; 123. Hand-tightening bolt; 13. Through hole; 14. Wire hole; 15. Wire take-up reel; 16. Screw hole; 17. Slide groove; 18. Screw sleeve. DETAILED DESCRIPTION
[0021] refer to Figures 1 to 4 The compression spring platinum thermal resistor described in this embodiment includes a connecting wire 6, a probe protection tube 1 is provided at the lower end of the connecting wire 6, a locking cap 2 is provided at the lower end of the connecting wire 6, a mounting sleeve 201 is clamped at the lower end of the locking cap 2, a wire protection spring 3 is provided on the outer side of the connecting wire 6, a clamping tube 4 is provided on the outer side of the wire protection spring 3, a screw 5 is threadedly connected to the inner side of the clamping tube 4, a mounting seat 7 is fixedly connected to the outer side of the connecting wire 6, a wire take-up box 11 is fixedly installed on the outer side of the mounting seat 7, a wire take-up reel 15 is fixedly installed on the inner side of the wire take-up box 11, and a wire hole 14 is symmetrically opened on the inner side of the wire take-up box 11, and a connecting wire 201 is connected to the outer side of the connecting wire 6. One end of the wire 6 passes through the wire box 11 through the wire hole 14, and one end of the connecting wire 6 is wound around the outside of the wire reel 15. A box cover 8 is rotatably connected to one side of the box mouth of the wire box 11, and a fixing mechanism 12 is provided at the other end of the box cover 8. The other end of the box cover 8 is movably installed through the fixing mechanism 12 and the wire box 11. A wire pressing mechanism 9 is symmetrically provided on the outside of the wire box 11. An adhesive layer 10 is fixedly connected to the side of the wire box 11 away from the box cover 8. The adhesive layer 10 of the wire box 11 can be used to further fix the wire box 11. The temperature sensing element in the probe is specifically made of high-purity platinum wire. Platinum has a good resistance-temperature characteristic, and its resistance value changes with temperature. This characteristic enables the platinum thermistor to accurately sense temperature changes and convert them into changes in resistance value. The outside of the connecting wire 6 is a shielding layer, and the upper end of the connecting wire 6 is provided with two U-shaped terminal heads, which can be conveniently connected to external devices for use.
[0022] The fixing mechanism 12 includes a first connecting plate 121 and a second connecting plate 122. The first connecting plate 121 is fixedly connected to the upper end of the box cover 8, and the second connecting plate 122 is fixedly connected to the upper end of the wire take-up box 11. A hand-tightening bolt 123 is provided on the inner side of the first connecting plate 121. The first connecting plate 121 is fixedly installed by the hand-tightening bolt 123 and the second connecting plate 122. When the box cover 8 and the wire take-up box 11 are opened and closed, the box cover 8 is turned over on the wire take-up box 11, so that the first connecting plate 121 on the box cover 8 moves to the second connecting plate 122 close to the wire take-up box 11, and then the hand-tightening bolt 123 is used to connect and fix the first connecting plate 121 and the second connecting plate 122, so that the box cover 8 and the wire take-up box 11 can be conveniently opened and closed;
[0023] The wire pressing mechanism 9 includes a concave sleeve 901, which is symmetrically fixedly connected to the inner side of the wire taking-up box 11, and a clamping block 902 is slidably connected to the opposite side of the concave sleeve 901. A stud 903 is symmetrically threadedly connected to the outer side of the wire taking-up box 11, and a rotary block 904 is fixedly installed at one end of the stud 903. The end of the stud 903 away from the rotary handle is threadedly extended into the inner side of the concave sleeve 901 and rotatably connected to the clamping block 902. According to the connection position of the connecting wire 6 of the thermal resistor, the excess connecting wire 6 is wound around the wire taking-up reel 15, and then the stud 903 is rotated according to the rotary block 904 at the nearest position, so that the stud 903 is threadedly extended and retracted on the wire taking-up box 11, and at the same time, the stud 903 rotates to push the clamping block 902 to slide at the concave sleeve 901, and the clamping block 902 extends into the wire groove of the wire taking-up reel 15, which can press the wire body to prevent it from loosening, thereby facilitating the storage and fixation of the connecting wire 6 of the thermal resistor.
[0024] refer to Figure 3 A through hole 13 is provided on the inner side of the first connecting plate 121, and a screw hole 16 is provided on the inner side of the second connecting plate 122. The threaded end of the hand-tightening bolt 123 passes through the through hole 13 and the screw hole 16 for threaded installation. The hand-tightening bolt 123 passes through the through hole 13 on the first connecting plate 121 and is connected and installed with the screw hole 16 on the second connecting plate 122, so that the box cover 8 and the wire receiving box 11 can be conveniently connected.
[0025] refer to Figure 4 The outer side of the clamping block 902 is symmetrically provided with a slide groove 17, and the end of the clamping block 902 close to the stud 903 is slidably connected to the inner side of the concave sleeve 901 through the slide groove 17. A screw sleeve 18 is fixedly installed on the outer side of the wire take-up box 11, and the end of the stud 903 away from the rotary block 904 is threaded through the screw sleeve 18. The stud 903 is threaded through the screw sleeve 18 and then extends into the concave sleeve 901, which can be conveniently rotated to drive the clamping block 902 to slide; a circular hole is also provided on the inner side of the concave sleeve 901, which can facilitate the stud 903 to penetrate the screw sleeve 18 and the wall of the concave sleeve 901; a friction-increasing rubber layer is also provided at the clamping groove of the clamping block 902, which has a better stability effect after clamping the wire body.
[0026] Principle and advantages of use: During use, firstly, according to the connection position of the connection wire 6 of the thermal resistor, the redundant connection wire 6 is wound on the take-up reel 15, and then the stud 903 is rotated according to the rotary block 904 at the nearest position, so that the stud 903 is threadedly extended and retracted on the take-up box 11, and at the same time, the stud 903 rotates to push the clamping block 902 to slide at the concave sleeve 901, and the clamping block 902 extends into the wire groove of the take-up reel 15, which can compress the wire body;
[0027] Then, flip the box cover 8 on the wire receiving box 11, so that the first connecting plate 121 on the box cover 8 moves to the second connecting plate 122 close to the wire receiving box 11, and then use the hand-tightening bolts 123 to connect and fix the first connecting plate 121 and the second connecting plate 122 to protect the stored connecting wires 6.
Claims
1. A compression spring platinum thermal resistor, comprising a connecting wire (6), characterized in that: The lower end of the connecting wire (6) is provided with a probe protection tube (1), the lower end of the connecting wire (6) is provided with a locking cap (2), the lower end of the locking cap (2) is clamped with a mounting sleeve (201), the outer side of the connecting wire (6) is provided with a wire protection spring (3), the outer side of the wire protection spring (3) is provided with a clamping tube (4), the inner side of the clamping tube (4) is threadedly connected with a screw (5), the outer side of the connecting wire (6) is fixedly connected with a mounting seat (7), the outer side of the mounting seat (7) is fixedly installed with a wire collection box (11), the inner side of the wire collection box (11) is fixedly connected with a mounting seat (7), and the inner side of the wire collection box (11) is fixedly connected with a mounting seat (7). A wire take-up reel (15) is installed, a wire hole (14) is symmetrically opened on the inner side of the wire take-up box (11), one end of the connecting wire (6) passes through the wire hole (14) and passes through the wire take-up box (11), one end of the connecting wire (6) is wound around the outer side of the wire take-up reel (15), a box cover (8) is rotatably connected to one side of the box opening of the wire take-up box (11), a fixing mechanism (12) is provided at the other end of the box cover (8), the other end of the box cover (8) is movably installed through the fixing mechanism (12) and the wire take-up box (11), and a wire pressing mechanism (9) is symmetrically provided on the outer side of the wire take-up box (11).
2. A compression spring platinum thermal resistor according to claim 1, characterized in that: A side of the wire take-up box (11) away from the box cover (8) is fixedly connected with an adhesive layer (10).
3. The compression spring platinum thermal resistor according to claim 1, characterized in that: The fixing mechanism (12) comprises a first connecting plate (121) and a second connecting plate (122); the first connecting plate (121) is fixedly connected to the upper end of the box cover (8); the second connecting plate (122) is fixedly connected to the upper end of the wire take-up box (11); a hand-tightening bolt (123) is provided on the inner side of the first connecting plate (121); the first connecting plate (121) is fixedly installed by means of the hand-tightening bolt (123) and the second connecting plate (122).
4. A compression spring platinum thermal resistor according to claim 3, characterized in that: A through hole (13) is provided on the inner side of the first connecting plate (121), a screw hole (16) is provided on the inner side of the second connecting plate (122), and the threaded end of the hand-tightening bolt (123) passes through the through hole (13) and the screw hole (16) for threaded installation.
5. The compression spring platinum thermal resistor according to claim 1, characterized in that: The wire pressing mechanism (9) comprises a concave sleeve (901), the concave sleeve (901) is symmetrically fixedly connected to the inner side of the wire receiving box (11), a clamping block (902) is slidably connected to the opposite side of the concave sleeve (901), a stud (903) is symmetrically threadedly connected to the outer side of the wire receiving box (11), a rotary block (904) is fixedly installed at one end of the stud (903), and an end of the stud (903) away from the rotary handle is threadedly extended into the inner side of the concave sleeve (901) and is rotatably connected to the clamping block (902).
6. A compression spring platinum thermal resistor according to claim 5, characterized in that: The outer side of the clamping block (902) is symmetrically provided with a sliding groove (17), and one end of the clamping block (902) close to the stud (903) is slidably connected to the inner side of the concave sleeve (901) through the sliding groove (17).
7. The compression spring platinum thermal resistor according to claim 5, characterized in that: A screw sleeve (18) is fixedly mounted on the outer side of the wire take-up box (11), and one end of the stud (903) away from the rotary block (904) is threadedly penetrated through the screw sleeve (18).