Assembly type thermal resistor based on quick plug-pull type connector structure

Abstract

The invention relates to the technical field of thermal resistors, and discloses an assembly type thermal resistor based on a quick plug type joint structure, which comprises a junction box, a protection tube is arranged at the lower end of the junction box, a quick plug mechanism is arranged on the junction box and the protection tube together, and a buffer damping mechanism is arranged on the inner wall of the protection tube. A flange adjusting mechanism is arranged on the outer wall of the protection pipe. According to the assembly type thermal resistor based on the quick plug type connector structure, after the junction box is manually rotated by 90 degrees or reset through reverse operation, the step-shaped twisting sleeve is pushed upwards and rotated by 90 degrees in the direction of the arc-shaped guide sliding groove, then the junction box is pulled upwards, and therefore the effect that the junction box and the protection tube are quickly connected in an inserted mode or separated from each other is achieved; meanwhile, the two arc-shaped limiting plates circumferentially fix the two arc-shaped inserting plates, and the multiple arc-shaped magnetic suction plates can slide up and down along the corresponding arc-shaped containing grooves for compensation, so that the influence of external vibration on the junction box is reduced, and the problem that internal electronic elements are damaged due to long-term vibration is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal resistors, and in particular to an assembled thermal resistor based on a quick plug-in connector structure. Background Art

[0002] In the field of industrial temperature measurement, RTDs are key sensor components. The reliability and maintenance efficiency of their protective sleeves and junction boxes directly impact equipment stability. The core structure of an assembled RTD connector consists of a thermocouple wire, an insulation layer, a protective sleeve, and a junction box. The protective sleeve primarily protects the thermocouple from direct environmental interference such as dust, corrosion, and vibration, ensuring stable and accurate operation.

[0003] The protective tube and junction box of traditional assembled thermal resistors are mostly connected by threads. In actual use, due to the direct transmission of external mechanical vibration to the junction box through the rigid joint, the threaded structure of the assembled thermal resistor may be damaged by vibration after long-term operation. When the junction box is subsequently replaced, it is necessary to manually unscrew the junction box for disassembly, which is time-consuming and labor-intensive. In addition, the external mechanical vibration will also be directly transmitted to the thermode through the rigid joint, which will aggravate material fatigue. There is a lack of vibration buffering for the thermode inside the assembled thermal resistor. Long-term use may also cause thermode breakage or signal drift. Summary of the Invention

[0004] In response to the above-mentioned shortcomings of the prior art, the present invention provides an assembled thermal resistor based on a quick plug-in connector structure, which can effectively solve the problem in the prior art that the protective tube and the junction box are mostly connected by threads, and the threaded structure is damaged due to vibration and then disassembled by manually twisting the junction box, which is time-consuming and labor-intensive; and the external mechanical vibration will also be directly transmitted to the thermode through the rigid joint, which will aggravate material fatigue, and long-term use will also cause the thermode to break or signal drift.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides an assembled thermal resistor based on a quick plug-in connector structure, comprising:

[0007] A junction box is provided with a protective tube at the lower end of the junction box. A quick plug-in mechanism is provided on both the junction box and the protective tube. A buffering and vibration reduction mechanism is provided on the inner wall of the protective tube, and a flange adjustment mechanism is provided on the outer wall of the protective tube.

[0008] Among them, the quick plug-in mechanism includes a circular groove opened in the middle of the lower end of the junction box, an annular docking groove is opened on the lower end of the junction box outside the circular groove, a docking portion is provided on the annular docking groove, an insertion portion is provided at a position corresponding to the docking portion on the protective tube, and an adjustment groove is opened on the outer wall of the junction box. The adjustment groove consists of an annular groove, a plurality of connecting grooves evenly distributed around the circumference, and two arc-shaped grooves. A rotating mating portion is provided at a position corresponding to the adjustment groove on the junction box;

[0009] The buffering and vibration reduction mechanism includes mounting grooves symmetrically provided on the inner wall of the protection tube, and a buffer portion is provided in both the front and rear mounting grooves.

[0010] Furthermore, the flange adjustment mechanism includes an annular sleeve plate threadedly connected to the upper side of the outer wall of the protective tube through a threaded section, a flange is fixed on the outer wall of the annular sleeve plate, an annular support plate is installed on the upper end of the annular sleeve plate, and a plurality of arc-shaped clamping plates evenly distributed in a circle are provided on the inner side of the annular support plate. The outer wall of the arc-shaped clamping plate is connected to the inner wall of the annular support plate through a plurality of compression springs, and the upper end of the outer wall of the arc-shaped clamping plate is a sloped protrusion structure, and the inner wall is a threaded structure, and a position adjustment part is provided on the annular sleeve plate.

[0011] Furthermore, the docking part includes an annular magnet installed through the inner wall of the upper end of the circular groove, and an arc groove is symmetrically provided on the annular inner wall of the annular docking groove. An arc limit plate is slidably connected in the arc groove through a compression spring. The lower end of the arc limit plate is a wedge-shaped structure, and a positioning guide groove is provided at the middle position. A resistance slide rod is symmetrically installed on the arc outer wall of the arc limit plate. The resistance slide rod slides through the outer wall of the junction box, and a roller is rotatably installed in the middle of the end of the resistance slide rod away from the arc limit plate.

[0012] Furthermore, the docking part also includes an arc-shaped clamping plate installed symmetrically on the left and right sides of the annular inner wall of the annular docking groove. The upper and lower ends of the arc-shaped clamping plate are provided with arc-shaped accommodating grooves. The upper and lower arc-shaped magnetic plates are symmetrically arranged in the upper and lower arc-shaped accommodating grooves. The upper and lower arc-shaped magnetic plates are arranged to magnetically repel each other.

[0013] Furthermore, the rotational fitting part includes a stepped torque sleeve movably mounted on the outer wall of the junction box, and magnetic card plates are symmetrically installed on the upper end of the inner wall of the stepped torque sleeve. The left and right magnetic card plates are movably fitted on the corresponding inner walls of the connecting slide groove. An annular slide groove is provided on the inner wall of the stepped torque sleeve, and an arc-shaped locking plate is symmetrically installed on the upper end of the annular inner wall of the annular slide groove. Arc-shaped guide grooves are provided at the bottom end of the annular slide groove corresponding to the positions of multiple interference slide rods.

[0014] Furthermore, the buffer part includes a U-shaped support frame jointly installed on the inner walls of the front and rear mounting grooves. A tapered through-hole is provided in the middle of the horizontal section of the U-shaped support frame. Buffer groups are symmetrically arranged on the inner walls at both ends of the U-shaped support frame. Each buffer group includes a strip-shaped plate fixedly connected to the inner wall of the U-shaped support frame through a plurality of telescopic sleeves and a plurality of compression springs. A plurality of clamping buffer plates are evenly installed on the end of the strip-shaped plate away from the inner wall of the U-shaped support frame from top to bottom. An extension plate is installed on the upper side of the inner wall of the U-shaped support frame. The upper end of the extension plate is slidably connected to an L-shaped pressing plate through a compression spring. The upper end of the strip-shaped plate and the vertical section of the L-shaped pressing plate are wedge-shaped structures facing each other.

[0015] Furthermore, the position adjustment part includes a thrust sleeve movably sleeved on the outer wall of a plurality of arc-shaped clamping plates. The cross-section of the thrust sleeve is L-shaped, and the upper end of the thrust sleeve is a wedge-shaped structure. An annular support plate II is installed on the upper end of the annular sleeve plate. The outer wall of the thrust sleeve is movably fitted to the inner wall of the annular support plate II. Rotating sliding holes are symmetrically provided on the front and rear outer walls of the annular support plate II. The rotating sliding holes are composed of arc-shaped sliding holes and accommodating sliding holes. Limit sliding rods are symmetrically installed on the front and rear outer walls of the thrust sleeve. The front and rear two limit sliding rods are respectively slidably connected to the inner walls of the corresponding rotating sliding holes.

[0016] Furthermore, the insertion part includes a mounting plate fixedly sleeved on the upper side of the outer wall of the protection tube. Arc-shaped insertion plates with a U-shaped cross-section are symmetrically installed on the upper end of the mounting plate. The upper end of the arc-shaped insertion plate is a wedge-shaped structure, and an arc-shaped alignment plate is installed at the middle position.

[0017] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0018] The present invention is provided with a quick plugging and unplugging mechanism and a buffer and shock absorption mechanism. An operator inserts the upper end of the protection tube into the circular groove, and rotates the junction box 90 degrees manually to achieve the effect of quickly plugging the junction box and the protection tube; at the same time, the front and rear two arc-shaped limiting plates will play a role in circumferentially fixing the two arc-shaped insertion plates. When external mechanical vibration is directly transmitted to the junction box through the protection tube, the two arc-shaped insertion plates will push the corresponding plurality of arc-shaped magnetic attraction plates, causing them to slide up and down along the corresponding arc-shaped accommodating grooves respectively to compensate, so as to reduce the influence of external vibration on the junction box and avoid the problem that the internal electronic components are damaged due to long-term vibration; the operator first rotates the stepped twist sleeve 90 degrees and continues to push it upward for resetting, then pushes the stepped twist sleeve upward and continues to rotate it 90 degrees along the direction of the arc-shaped guiding chute, and finally pulls the junction box upward to achieve the effect of quickly disconnecting the connection between the junction box and the protection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0020] Figure 1 It is a three-dimensional structural diagram of an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the structure in which the docking portion and the rotational fitting portion are three-dimensionally separated in an embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the three-dimensional structure of the inserting portion and the flange adjustment mechanism in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the three-dimensional separation of the position adjustment part in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a three-dimensional partial cross-section of a stepped twist sleeve in an embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a three-dimensional partial cross-section of a flange adjustment mechanism in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional state change of the protective tube inserted into the junction box according to an embodiment of the present invention;

[0027] Figure 8 Schematic diagram of the state change of the stepped twist sleeve after the protective tube is inserted into the junction box 3D according to the embodiment of the present invention;

[0028] Figure 9 Schematic diagram of the three-dimensional state change of the stepped twist sleeve when the protective tube is separated from the junction box in an embodiment of the present invention.

[0029] The reference numerals in the figure respectively represent: 1, junction box; 2, protection tube; 3, quick plug - and - unplug mechanism; 31, docking part; 311, annular magnet; 312, arc - shaped limiting plate; 313,抵触 slide bar; 314, roller; 315, arc - shaped clamping plate; 316, arc - shaped magnetic suction plate; 32, insertion part; 321, mounting plate; 322, arc - shaped insertion plate; 33, adjustment chute; 34, rotation - fitting part; 341, stepped torsion sleeve; 342, magnetic suction clamping plate; 343, arc - shaped抵触 plate; 344, arc - shaped guiding chute; 4, buffer and shock - absorption mechanism; 41, mounting groove; 42, buffer part; 421, U - shaped support frame; 422, strip - shaped plate; 423, clamping buffer plate; 424, extension plate; 425, L - shaped extrusion plate; 5, flange adjustment mechanism; 51, annular sleeve plate; 52, first annular support plate; 53, arc - shaped locking plate; 54, position - adjustment part; 541, pushing sleeve plate; 542, second annular support plate; 543, rotation slide hole; 544, limiting slide bar. Specific embodiments

[0030] In order to make the purposes, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Embodiment:

[0033] Please refer to Figures 1-9 , the present invention provides a technical solution: an assembled thermal resistor based on a quick - plug - and - unplug joint structure, including:

[0034] A junction box 1, a protection tube 2 is provided at the lower end of the junction box 1, a quick plug - and - unplug mechanism 3 is provided on both the junction box 1 and the protection tube 2, a buffer and shock - absorption mechanism 4 is provided on the inner wall of the protection tube 2, and a flange adjustment mechanism 5 is provided on the outer wall of the protection tube 2;

[0035] Among them, the quick plug - and - unplug mechanism 3 includes a circular groove opened in the middle of the lower end of the junction box 1, an annular docking groove is opened outside the circular groove at the lower end of the junction box 1, a docking part 31 is provided on the annular docking groove, an insertion part 32 corresponding to the docking part 31 is provided on the protection tube 2, an adjustment chute 33 is opened on the outer wall of the junction box 1, the adjustment chute 33 is composed of an annular chute, a plurality of communicating chutes evenly distributed in a circumferential direction, and two arc - shaped chutes, and a rotation - fitting part 34 corresponding to the adjustment chute 33 is provided on the junction box 1;

[0036] The buffering and vibration reduction mechanism 4 includes mounting grooves 41 symmetrically provided on the inner wall of the protection tube 2 , and a buffer portion 42 is provided in both the front and rear mounting grooves 41 .

[0037] The flange adjustment mechanism 5 includes an annular sleeve 51 which is threadedly connected to the upper side of the outer wall of the protective tube 2 through a threaded section. A flange is fixedly sleeved on the outer wall of the annular sleeve 51. An annular support plate 52 is installed on the upper end of the annular sleeve 51. A plurality of arc-shaped locking plates 53 are evenly distributed on the inner side of the annular support plate 52. The outer wall of the arc-shaped locking plate 53 is connected to the inner wall of the annular support plate 52 through a plurality of compression springs. The upper end of the outer wall of the arc-shaped locking plate 53 is a beveled protrusion structure, and the inner wall is a threaded structure. A position adjustment part 54 is provided on the annular sleeve 51.

[0038] The docking portion 31 includes an annular magnet 311 installed through the inner wall of the upper end of the circular groove, and an arc groove is symmetrically provided on the inner wall of the annular docking groove. An arc limit plate 312 is slidably connected to the arc groove through a compression spring. The lower end of the arc limit plate 312 is a wedge-shaped structure, and a positioning guide groove is provided at the middle position. A resistance slide bar 313 is symmetrically installed on the arc outer wall of the arc limit plate 312. The resistance slide bar 313 slides through the outer wall of the junction box 1, and a roller 314 is rotatably installed in the middle of the end of the resistance slide bar 313 away from the arc limit plate 312.

[0039] The docking portion 31 also includes an arc-shaped clamping plate 315 symmetrically installed on the inner wall of the annular docking groove. The upper and lower ends of the arc-shaped clamping plate 315 are provided with arc-shaped receiving grooves. The upper and lower arc-shaped magnetic attraction plates 316 are symmetrically arranged in the upper and lower arc-shaped receiving grooves. The upper and lower arc-shaped magnetic attraction plates 316 are set to magnetically repel each other.

[0040] The rotating fitting part 34 includes a stepped torque sleeve 341 movably mounted on the outer wall of the junction box 1, and magnetic card plates 342 are symmetrically installed on the upper end of the inner wall of the stepped torque sleeve 341. The left and right two magnetic card plates 342 are movably fitted on the inner walls of the corresponding connecting slides. An annular slide is provided on the inner wall of the stepped torque sleeve 341, and arc-shaped resistance plates 343 are symmetrically installed on the upper end of the annular inner wall of the annular slide. Arc-shaped guide slides 344 are provided at the positions corresponding to the multiple resistance slide rods 313 at the bottom of the annular slide.

[0041] The buffer part 42 includes a U-shaped support frame 421 jointly installed on the inner walls of the front and rear mounting grooves 41. A tapered through hole is provided in the middle of the horizontal section of the U-shaped support frame 421. Buffer groups are symmetrically arranged on the inner walls at the front and rear ends of the U-shaped support frame 421. Each buffer group includes a strip-shaped plate 422 fixedly connected to the inner wall of the U-shaped support frame 421 through a plurality of telescopic sleeves and a plurality of compression springs. A plurality of clamping buffer plates 423 are evenly installed from top to bottom at one end of the strip-shaped plate 422 away from the inner wall of the U-shaped support frame 421. An extension plate 424 is installed on the upper side of the inner wall of the U-shaped support frame 421. An L-shaped pressing plate 425 is slidably connected to the upper end of the extension plate 424 through a compression spring. The upper ends of the strip-shaped plate 422 and the vertical section of the L-shaped pressing plate 425 are wedge-shaped structures facing each other.

[0042] The position adjusting part 54 includes a thrust sleeve plate 541 movably sleeved on the outer wall of a plurality of arc-shaped locking plates 53. The cross-section of the thrust sleeve plate 541 is L-shaped, and the upper end of the thrust sleeve plate 541 is a wedge-shaped structure. A second annular support plate 542 is installed at the upper end of the annular sleeve plate 51. The outer wall of the thrust sleeve plate 541 is movably fitted to the inner wall of the second annular support plate 542. Rotating sliding holes 543 are symmetrically opened on the front and rear outer walls of the second annular support plate 542. The rotating sliding holes 543 are composed of arc-shaped sliding holes and accommodating sliding holes. Limiting sliding rods 544 are symmetrically installed on the front and rear outer walls of the thrust sleeve plate 541. The front and rear two limiting sliding rods 544 are respectively slidably connected to the inner walls of the corresponding rotating sliding holes 543.

[0043] The insertion part 32 includes a mounting plate 321 fixedly sleeved on the upper side of the outer wall of the protection tube 2. Arc-shaped insertion plates 322 with a U-shaped cross-section are symmetrically installed at the upper end of the mounting plate 321. The upper end of the arc-shaped insertion plate 322 is a wedge-shaped structure, and an arc-shaped alignment plate is installed at the middle position.

[0044] Reference Figures 1-9 , between the traditional protection tube 2 and the junction box 1, most are connected by threads. After the thread structure is damaged due to vibration, the junction box 1 is disassembled by manually screwing it. This is time-consuming and laborious; and the external mechanical vibration will also be directly transmitted to the thermal electrode through the rigid joint, which will exacerbate material fatigue and cause problems such as thermal electrode fracture or signal drift after long-term use. In view of this, the present application designs an assembled thermal resistor based on a quick plug-and-play joint structure;

[0045] In order to overcome the above-mentioned existing defects, the present application designs an assembled thermal resistor based on a quick plug-and-play joint structure.

[0046] First, the junction box 1 and the protection tube 2 in this application adopt a quick plug-and-play structure. When the junction box 1 and the protection tube 2 need to be connected, the protection tube 2 is manually taken and moved towards the circular groove at the bottom end of the junction box 1. First, the two arc-shaped plug plates 322 on the protection tube 2 are inserted into the annular docking groove, and the protection tube 2 is slowly rotated until the arc-shaped alignment plates on the two arc-shaped plug plates 322 respectively correspond to the alignment guiding grooves. Then, the upper end of the protection tube 2 is manually inserted into the circular groove. During this period, the two arc-shaped plug plates 322 on the protection tube 2 will respectively squeeze the corresponding arc-shaped limiting plates 312 and make them respectively retract into the corresponding arc-shaped grooves. Then, the junction box 1 is manually rotated 90 degrees. During this period, the two arc-shaped plug plates 322 on the protection tube 2 will squeeze the corresponding arc-shaped magnetic plates 316 and make them retract into the corresponding arc-shaped accommodating grooves. After the front and rear two arc-shaped limiting plates 312 are reset under the action of the compression spring, multiple arc-shaped magnetic plates 316 will extend out of the corresponding arc-shaped accommodating grooves and magnetically attract to the corresponding arc-shaped plug plates 322 under the action of magnetic repulsion.

[0047] Then, the stepped twist sleeve 341 is manually pressed downward first and rotated 90 degrees continuously. During this period, the stepped twist sleeve 341 will drive the two magnetic attraction clamping plates 342 to move downward along the corresponding communicating chutes respectively and rotate 90 degrees along the corresponding arc-shaped chutes. At this time, the positions of the front and rear two arc-shaped limiting plates 312 will respectively correspond to the positions of multiple abutting sliding rods 313 and play a further limiting role, thus completing the insertion and docking work of the junction box 1 and the protection tube 2. It should be noted that the magnetic attraction clamping plates 342 on the stepped twist sleeve 341 are initially magnetically attracted and connected to the inner walls of the corresponding communicating chutes and are located above the multiple abutting sliding rods 313, not in contact with the multiple abutting sliding rods 313 to play a limiting role, and each pair of corresponding upper and lower arc-shaped magnetic plates 316 are initially separated from each other under the action of magnetic repulsion.

[0048] And during the connection of the junction box 1 and the protection tube 2, the multiple clamping buffer plates 423 on the front and rear sides are initially in a state of being separated from each other. The thermal electrode carried at the lower end of the junction box 1 is inserted into the protection tube 2. When the junction box 1 and the protection tube 2 are inserted and docked, the tail end of the thermal electrode will pass through the tapered through hole of the U-shaped support frame 421. Under the magnetic attraction of the annular magnet 311, the front and rear two L-shaped pressing plates 425 move upward until they tightly adsorb on the annular magnet 311. At this time, after the front and rear two strip plates 422 lose the downward pressing force of the front and rear two L-shaped pressing plates 425, they will respectively drive the corresponding multiple clamping buffer plates 423 to approach each other and jointly clamp the thermal electrode to buffer and protect it.

[0049] When the assembled thermocouple needs to be installed through the protection tube 2 and the insertion depth of the protection tube 2 is adjusted, the pushing sleeve 541 is manually rotated 90 degrees along the rotating sliding hole 543 to unlock it, and then the pushing sleeve 541 is pressed downward to drive the corresponding two limiting slide bars 544 to move downward synchronously until the two limiting slide bars 544 are respectively located in the corresponding receiving sliding holes for limiting. At this time, under the action of the compression spring, the multiple arc-shaped locking plates 53 will be away from the threaded section on the outer wall of the protection tube 2 to release the lock, The flange can be rotated freely to drive the annular sleeve 51 to move upward or downward along the threaded section on the outer wall of the protective tube 2. When the flange position is adjusted to a suitable position, the push sleeve 541 is pushed upward and the push sleeve 541 is rotated 90 degrees along the rotating sliding hole 543 to restore it to its original position. At this time, under the extrusion of the push sleeve 541, multiple arc-shaped locking plates 53 will lock the threaded section on the outer wall of the protective tube 2 again, thereby achieving the effect of adjusting the insertion depth of the protective tube 2 in a short distance when installing.

[0050] When the assembled thermocouple needs to replace the junction box 1, the stepped twist sleeve 341 is manually rotated 90 degrees and continued to be pushed upward to reset. During this period, the stepped twist sleeve 341 will drive the two magnetic card plates 342 to rotate 90 degrees in the opposite direction along the corresponding arc chute, and move upward along the corresponding connecting chute to restore to their original positions. Then the stepped twist sleeve 341 is pushed upward and rotated 90 degrees along the direction of the arc guide chute 344. During this period, the stepped twist sleeve 341 will drive the two magnetic card plates 342 to continue to move upward along the corresponding connecting chute into the annular chute and rotate 90 degrees along the annular chute. At this time, the positions of the multiple interference slide bars 313 will correspond to the positions of the lower side of the inner wall of the annular chute, and the multiple rollers 314 will be inserted into the corresponding When the locking cam 314 is unlocked, the locking cam 314 will be unlocked, and the winch cam 310 will be unlocked, so the winch cam 310 will be unlocked.

[0051] In summary, this application has the following advantages:

[0052] Advantage 1: In this application, the junction box 1 and the protection tube 2 adopt a quick plug-and-play structure. First, insert the two arc-shaped insertion plates 322 on the protection tube 2 into the annular docking groove, and slowly rotate the protection tube 2. After the arc-shaped alignment plates respectively correspond to the alignment guiding grooves, manually insert the upper end of the protection tube 2 into the circular groove. During this period, the two arc-shaped insertion plates 322 on the protection tube 2 will respectively squeeze the corresponding arc-shaped limiting plates 312 and cause them to retract into the corresponding arc-shaped grooves. Then, manually rotate the junction box 1 by 90 degrees. During this period, the two arc-shaped insertion plates 322 on the protection tube 2 will squeeze the corresponding arc-shaped magnetic plates 316 and cause them to retract into the corresponding arc-shaped accommodation grooves. After the front and rear arc-shaped limiting plates 312 are reset under the action of the compression springs, multiple arc-shaped magnetic plates 316 will protrude from the corresponding arc-shaped accommodation grooves and be magnetically attracted to the corresponding arc-shaped insertion plates 322 under the action of magnetic repulsion, thus achieving the effect of quick plugging of the junction box 1 and the protection tube 2.

[0053] Advantage 2: At the same time, the front and rear arc-shaped limiting plates 312 will play a role in circumferentially fixing the two arc-shaped insertion plates 322. Multiple arc-shaped magnetic plates 316 are magnetically attracted to the corresponding arc-shaped insertion plates 322 under the action of magnetic repulsion. When external mechanical vibration is directly transmitted to the junction box 1 through the protection tube 2, the two arc-shaped insertion plates 322 will push the corresponding multiple arc-shaped magnetic plates 316, causing them to slide up and down in the corresponding arc-shaped accommodation grooves respectively for compensation, thus reducing the influence of external vibration on the junction box 1 and avoiding the problem that the internal electronic components are damaged due to long-term vibration.

[0054] Advantage 3: The multiple clamping buffer plates 423 on the front and rear sides are initially in a state of moving away from each other, which is convenient for the hot electrodes carried at the lower end of the junction box 1 to be inserted into the protection tube 2. When the junction box 1 and the protection tube 2 are inserted and docked, the tail end of the hot electrode will pass through the tapered through hole of the U-shaped support frame 421. Under the magnetic attraction of the annular magnet 311, the front and rear strip plates 422 will lose the downward pressing force of the front and rear L-shaped pressing plates 425, and can respectively带动 the corresponding multiple clamping buffer plates 423 to approach each other and jointly clamp the hot electrode, thus achieving the effect of buffering and protecting the hot electrode, and effectively avoiding the problem that external mechanical vibration is also directly transmitted to the hot electrode through the rigid joint, which will加剧 material fatigue and cause the hot electrode to break or signal drift after long-term use.

[0055] Advantage four, when replacing junction box 1, manually rotate the stepped twist sleeve 341 90 degrees first and continue to push upward to reset it, then push the stepped twist sleeve 341 upward and continue to rotate 90 degrees along the direction of the arc guide slot 344. At this time, the positions of the multiple interference slide bars 313 will correspond to the positions of the lower sides of the inner wall of the annular slot. Under the cooperation of the multiple arc guide slots 344 and the corresponding rollers 314, the multiple rollers 314 will drive the corresponding interference slide bars 313 to move synchronously toward the outside of the junction box 1. At this time, the two arc plug plates 322 will lose the limit of the adjacent arc limit plates 312, and the junction box 1 can be manually driven to rotate 90 degrees in the same direction again through the stepped twist sleeve 341. The junction box 1 drives the two arc clamping plates 315 to rotate synchronously 90 degrees, and finally the junction box 1 is pulled upward, thereby achieving the effect of quickly disconnecting the junction box 1 from the protective tube 2.

[0056] When the flange is adjusted to the desired position, the push sleeve 541 is pushed upward and the push sleeve 541 is rotated 90 degrees along the rotating slide hole 543 to restore it to its original position. At this time, under the squeezing action of the push sleeve 541, the multiple arc locking plates 53 will lock the threaded sections on the outer wall of the protective tube 2 again, thereby achieving the effect of quickly adjusting the installation insertion depth of the protective tube 2 over a short distance.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled thermal resistor based on a quick plug-in connector structure, characterized in that: include: A junction box (1), a protective tube (2) is provided at the lower end of the junction box (1), a quick plug-in mechanism (3) is provided on both the junction box (1) and the protective tube (2), a buffering and vibration reduction mechanism (4) is provided on the inner wall of the protective tube (2), and a flange adjustment mechanism (5) is provided on the outer wall of the protective tube (2); The quick plug-in mechanism (3) comprises a circular groove provided in the middle of the lower end of the junction box (1); an annular docking groove is provided on the lower end of the junction box (1) outside the circular groove; a docking portion (31) is provided on the annular docking groove; an insertion portion (32) is provided on the protective tube (2) at a position corresponding to the docking portion (31); an adjustment slot (33) is provided on the outer wall of the junction box (1); the adjustment slot (33) consists of an annular slot, a plurality of connecting slots evenly distributed on the circumference, and two arc-shaped slots; a rotational fitting portion (34) is provided on the junction box (1) at a position corresponding to the adjustment slot (33); The buffering and vibration reduction mechanism (4) comprises mounting grooves (41) symmetrically provided on the inner wall of the protection tube (2), and a buffer portion (42) is provided in both the front and rear mounting grooves (41).

2. The assembled thermal resistor based on the quick plug-in connector structure according to claim 1, characterized in that: The flange adjustment mechanism (5) comprises an annular sleeve (51) which is threadedly connected to the upper side of the outer wall of the protection tube (2) through a threaded section, a flange is fixedly sleeved on the outer wall of the annular sleeve (51), an annular support plate (52) is installed on the upper end of the annular sleeve (51), a plurality of arc-shaped locking plates (53) uniformly distributed on the circumference are arranged on the inner side of the annular support plate (52), the outer wall of the arc-shaped locking plate (53) is connected to the inner wall of the annular support plate (52) through a plurality of compression springs, and the upper end of the outer wall of the arc-shaped locking plate (53) is a slanted protrusion structure, and the inner wall is a threaded structure, and a position adjustment portion (54) is provided on the annular sleeve (51).

3. The assembled thermal resistor based on the quick plug-in connector structure according to claim 1, characterized in that: The docking portion (31) includes an annular magnet (311) installed through the inner wall of the upper end of the circular groove, an arc groove is symmetrically opened on the inner wall of the annular docking groove, an arc limit plate (312) is slidably connected in the arc groove through a compression spring, the lower end of the arc limit plate (312) is a wedge-shaped structure, and a positioning guide groove is opened at the middle position, and a resistance slide bar (313) is symmetrically installed on the arc outer wall of the arc limit plate (312), the resistance slide bar (313) slides through the outer wall of the junction box (1), and a roller (314) is rotatably installed in the middle of the end of the resistance slide bar (313) away from the arc limit plate (312).

4. The assembled thermal resistor based on the quick plug-in connector structure according to claim 3, characterized in that: The docking portion (31) further comprises an arc-shaped clamping plate (315) symmetrically mounted on the inner wall of the annular docking groove. The upper and lower ends of the arc-shaped clamping plate (315) are both provided with arc-shaped receiving grooves. Arc-shaped magnetic attraction plates (316) are symmetrically arranged in the upper and lower arc-shaped receiving grooves. The upper and lower arc-shaped magnetic attraction plates (316) are arranged to magnetically repel each other.

5. The assembled thermal resistor based on a quick plug-in connector structure according to claim 1, characterized in that: The rotation fitting part (34) includes a stepped torsion sleeve (341) movably sleeved on the outer wall of the junction box (1). Magnetically attracted clamping plates (342) are symmetrically installed on the upper end of the inner wall of the stepped torsion sleeve (341) in the left and right directions. The left and right magnetically attracted clamping plates (342) are respectively movably fitted on the inner walls of the corresponding connecting sliding grooves. An annular sliding groove is formed on the inner wall of the stepped torsion sleeve (341). Arc-shaped abutting plates (343) are symmetrically installed on the upper end of the annular inner wall of the annular sliding groove in the front and back directions. Arc-shaped guiding sliding grooves (344) are formed at the bottom end of the annular sliding groove corresponding to the positions of a plurality of abutting sliding rods (313).

6. The assembled thermal resistor based on a quick plug-in connector structure according to claim 1, characterized in that: The buffering part (42) includes a U-shaped support frame (421) jointly installed on the inner walls of two front and back installation grooves (41). A conical through hole is formed in the middle of the horizontal section of the U-shaped support frame (421). Buffer groups are symmetrically arranged on the inner walls at the front and back ends of the U-shaped support frame (421). Each buffer group includes a strip-shaped plate (422) fixedly connected to the inner wall of the U-shaped support frame (421) through a plurality of telescopic sleeves and a plurality of compression springs. A plurality of clamping buffer plates (423) are uniformly installed on the end of the strip-shaped plate (422) far from the inner wall of the U-shaped support frame (421) from top to bottom. An extension plate (424) is installed on the upper side of the inner wall of the U-shaped support frame (421). An L-shaped pressing plate (425) is slidably connected to the upper end of the extension plate (424) through a compression spring. The upper end of the strip-shaped plate (422) and the vertical section of the L-shaped pressing plate (425) are respectively wedge-shaped structures facing each other.

7. The assembled thermal resistor based on a quick plug-in connector structure according to claim 2, characterized in that: The position adjusting part (54) includes a pushing sleeve plate (541) movably sleeved on the outer walls of a plurality of arc-shaped locking plates (53). The cross section of the pushing sleeve plate (541) is L-shaped, and the upper end of the pushing sleeve plate (541) is a wedge-shaped structure. An annular support plate II (542) is installed on the upper end of the annular sleeve plate (51). The outer wall of the pushing sleeve plate (s541) is movably fitted on the inner wall of the annular support plate II (542). Rotating sliding holes (543) are symmetrically formed on the outer wall of the annular support plate II (542) in the front and back directions. The rotating sliding holes (543) are composed of arc-shaped sliding holes and accommodating sliding holes. Limiting sliding rods (544) are symmetrically installed on the outer wall of the pushing sleeve plate (541) in the front and back directions. The front and back limiting sliding rods (544) are respectively slidably connected to the inner walls of the corresponding rotating sliding holes (543).

8. The assembled thermal resistor based on a quick plug-in connector structure according to claim 1, characterized in that: The insertion part (32) includes a mounting plate (321) fixedly sleeved on the upper side of the outer wall of the protection tube (2). Arc-shaped insertion plates (322) with a U-shaped cross section are symmetrically installed on the upper end of the mounting plate (321). The upper end of the arc-shaped insertion plate (322) is a wedge-shaped structure, and an arc-shaped alignment plate is installed at the middle position.

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