Device for testing heating performance of electric tracing band

Abstract

The invention relates to the technical field of electric tracing band testing equipment, in particular to an electric tracing band heating performance testing device which comprises a shell, a top cover, a guide part and an electric heating plate. The traction mechanism is arranged on the shell; the cleaning mechanism is arranged on the shell; the kneading mechanism comprises a kneading part arranged in the shell, and a linkage part is arranged on the back surface of the shell; the bending mechanism comprises an air conveying part arranged on the back face of the shell, and a bending part is arranged on the bottom face of an inner cavity of the shell; wherein the cleaning mechanism comprises extrusion rollers, the two extrusion rollers are rotationally connected to the interior of the shell, four fixing parts are further arranged on the inner wall of the shell, a supporting part is installed on every two corresponding fixing parts, and an absorbent cotton roller is installed on each supporting part. By introducing the traction mechanism, continuous movement of the electric tracing band can be realized, so that continuous performance detection is performed on the whole length of the electric tracing band.

Description

Technical Field

[0001] The invention relates to the technical field of electric heating tape testing equipment, and in particular to a device for testing the heating performance of an electric heating tape. Background Art

[0002] Electric heating cables are special cables with electric heating technology, which are mainly used to prevent freezing of pipes and equipment such as water pipes and heating pipes and to maintain constant temperature heating. It is composed of conductive materials (such as copper or aluminum) and insulating materials, and can generate heat when it is energized. Its shape is usually flat or round, and it is similar to wires and cables in appearance, but its functions and usage are different. In order to ensure the stability of the use of electric heating cables, it is generally necessary to test the electric heating cables after production to evaluate their service life and safety.

[0003] The Chinese patent with application number: CN202320396595.1 discloses a high-temperature testing device for cables. The device heats the thermal oil inside a heat-insulating box with a heating rod, and heats the thermal oil inside a heat-insulating inner tube with the thermal oil inside the heat-insulating box. The cable is passed through the heat-insulating inner tube, and the heated thermal oil in the heat-insulating inner tube is used to perform a high-temperature test on the cable. Once the cable is damaged, the two wires connected to the inside of the heat-insulating inner tube will connect a red light in series in the circuit where the battery is located under the conductive action of the thermal oil, causing the red light to emit red light, indicating that the cable is damaged. At this time, the tester only needs to record the lighting time of the red light to know the time when the cable is damaged, thereby facilitating the tester to record the time point of damage to the cable during the high-temperature test, thereby improving the accuracy of the tester's evaluation of the cable performance.

[0004] However, in practical application, the above device still has some shortcomings:

[0005] First, these devices are limited to testing a small section of the cable and lack continuous testing capabilities, making it difficult to accurately assess the service life and safety of the entire cable;

[0006] Second, the current testing device can only evaluate the heat resistance of cables. The structure of the testing device is relatively simple and cannot effectively simulate the multiple variables and complex conditions that may occur in actual application scenarios.

[0007] In addition, during the cable inspection process, oil often adheres to the cable surface, and workers are required to perform additional cleaning work after the inspection, which increases maintenance costs and labor intensity. Summary of the invention

[0008] In view of this, the purpose of the present invention is to provide an electric heating tape heating performance testing device to solve the problems raised in the background technology.

[0009] Based on the above purpose, the present invention provides an electric heating belt heating performance test device, comprising a shell, a top cover is provided at the upper end of the shell, four sets of guide members are provided in the inner cavity of the shell, and electric heating plates are provided on the inner walls on both sides of the shell;

[0010] A traction mechanism, wherein the traction mechanism is arranged at both ends of the shell, and a driving member is also installed on the front side of the shell;

[0011] A cleaning mechanism, which is disposed on the housing and is used to clean the electric heating cable;

[0012] A twisting and kneading mechanism, the twisting and kneading mechanism comprising a twisting and kneading portion arranged in the shell, and a linkage portion is arranged on the back of the shell;

[0013] A bending mechanism, the bending mechanism comprising a gas delivery portion arranged on the back of the shell, and a bending portion is arranged on the bottom surface of the inner cavity of the shell;

[0014] Wherein, the cleaning mechanism includes a squeezing roller, and the two squeezing rollers are rotatably connected to the inside of the shell. The inner wall of the shell is also provided with four fixing parts, and every two corresponding fixing parts are installed with a supporting part, and the supporting part is installed with a water-absorbing cotton roller.

[0015] Furthermore, each group of the guide members is composed of two guide rollers, the guide rollers are rotatably connected in the outer shell, and a limiting ring is fixedly sleeved on the guide rollers.

[0016] Furthermore, the top cover includes a protective cover, which is arranged on the top surface of the outer shell, and the inner cavity top surface of the protective cover is provided with heating lamps distributed in an array, the top surface of the outer shell is provided with two wiring sockets, and the top surface of the outer shell is also provided with a warning light.

[0017] Furthermore, the traction mechanism includes a bracket, and both of the two brackets are fixedly connected to the top surface of the shell, the bracket is slidably connected to a mounting seat, the bracket is threadedly connected to a threaded rod, and the lower end of the threaded rod is rotatably connected to the mounting seat, the mounting seat is rotatably connected to a first roller, both ends of the shell are rotatably connected to second rollers, and the central axis of the second roller on the left is fixedly connected to the output shaft of the driving member, and the rear end of the second roller on the left is also fixedly installed with a first driving gear and a second driving gear.

[0018] Furthermore, the fixing part includes a connecting seat, which is rotatably connected to the outer shell, one end of the connecting seat is fixedly connected to a U-shaped seat, both ends of the U-shaped seat are plugged with locking rods, one end of the locking rod is fixedly sleeved with an L-shaped plate on the outer wall, both sides of the U-shaped seat are fixedly connected with tension springs, and the other end of the tension spring is fixedly connected to the L-shaped plate, a rack is fixedly connected to the L-shaped plate, one side of the U-shaped seat is rotatably connected to a first transmission gear, a follower gear is fixedly installed on one of the rear connecting seats, and first linkage gears are fixedly installed on the two front connecting seats.

[0019] Furthermore, the support portion includes two mounting rods, one end of one of the mounting rods is provided with a hexagonal groove, one end of the other mounting rod is fixedly connected with a hexagonal column, and one end of the mounting rod is also provided with a locking hole.

[0020] Furthermore, the twisting and kneading part includes a sliding rod, two of the sliding rods are slidably plugged into the outer shell in a piston-like manner, a sleeve plate is fixedly connected to the sliding rod, a movable block is slidably plugged into the sleeve plate, a twisting and kneading plate is fixedly connected to the movable block, one side of the movable block is connected to a compression spring distributed in an array, and the other end of the compression spring is fixedly connected to the inner wall of the sleeve plate.

[0021] Furthermore, the linkage part includes a rotating rod, which is rotatably connected to the back side of the shell, and a second linkage gear and a cam are fixedly installed on the rotating rod. The rear end of the sliding rod is fixedly connected to a toothed plate, one of the toothed plates is provided with a force block, and the force block is slidably connected to a groove on the cam. The back side of the shell is also fixedly connected to a support plate, and the support plate is rotatably connected to the second transmission gear. The back side of the shell is fixedly connected to a cross bar, and the cross bar is slidably connected to the toothed plate.

[0022] Furthermore, the air delivery part includes an eccentric wheel, which is fixedly mounted on a connecting seat at the rear, and a sleeve block and a first hollow cylinder are fixedly connected to the back side of the shell, a moving rod is slidably connected to the sleeve block, and one end of the moving rod is slidably inserted in the first hollow cylinder, one end of the moving rod is fixedly connected to a first piston plate, and an air delivery pipe is connected to the first hollow cylinder, and the other end of the moving rod is rotatably connected to two clamping rollers, and the two clamping rollers are clamped on the eccentric wheel.

[0023] Furthermore, the bending portion includes guide rods, four of which are fixedly connected to the bottom surface of the inner cavity of the shell, the four guide rods are slidably connected to a moving seat, the moving seat is rotatably connected to a top roller, the bottom surface of the inner cavity of the shell is also fixedly connected to a second hollow cylinder, and one end of the air pipe is connected to the second hollow cylinder, the upper end of the second hollow cylinder is connected to a lifting rod in a piston-like sliding manner, and the upper end of the lifting rod is fixedly connected to the moving seat, the lower end of the lifting rod is fixedly connected to a second piston plate, and the lower end of the lifting rod is also sleeved with a spring.

[0024] Beneficial effects of the invention: As can be seen from the above, the electric heating belt heating performance test device provided by the invention can realize the continuous movement of the electric heating belt by introducing a traction mechanism, thereby performing continuous performance testing on the entire length of the electric heating belt. This not only improves the accuracy of the test, but also makes the test process more efficient;

[0025] Through the design of the bending mechanism, the device can simulate the dynamic stress that the electric heating cable may encounter in actual application, such as bending and stretching. This design helps to more accurately evaluate the performance and durability of the electric heating cable in actual use environment;

[0026] The addition of the cleaning mechanism effectively solves the problem of oil on the surface of the electric heating cable, reducing the cleaning workload and maintenance costs of subsequent staff. The design of the absorbent cotton roller not only improves the cleaning efficiency, but also maintains a continuous water absorption effect through the action of the squeezing roller, further improving the overall convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention after the top cover is disassembled;

[0030] Figure 3 For the present invention Figure 2 Rear view of

[0031] Figure 4 For the present invention Figure 2 A cross-sectional view of

[0032] Figure 5 It is a schematic diagram of the connection between the moving rod and the first hollow cylinder of the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of the second hollow cylinder of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the twisting and kneading part of the present invention;

[0035] Figure 8 For the present invention Figure 7 An enlarged schematic diagram of part A shown in FIG.

[0036] Fig. 9 It is an exploded view of the linkage part of the present invention;

[0037] Fig.10 It is a schematic diagram of the present invention after the fixing part and the supporting part are disassembled;

[0038] Fig.11 For the present invention Fig.10 An enlarged schematic diagram of part B shown in;

[0039] Fig.12 It is a schematic diagram of the support part and the absorbent cotton roller after being disassembled;

[0040] Fig.13 is a cross-sectional view of the top cover of the present invention;

[0041] Fig.14 It is a threading schematic diagram of the present invention.

[0042] The markings in the figure are:

[0043] 1. Shell; 2. Top cover; 3. Traction mechanism; 31. Driving member; 4. Guide member; 5. Cleaning mechanism; 6. Twisting mechanism; 61. Twisting part; 62. Linkage part; 7. Bending mechanism; 71. Air transmission part; 72. Bending part; 8. Electric heating plate;

[0044] 201, protective cover; 202, baking lamp; 203, wiring socket; 204, warning light;

[0045] 301, bracket; 302, mounting seat; 303, threaded rod; 304, first rotating roller; 305, second rotating roller; 306, first driving gear; 307, second driving gear;

[0046] 51. Squeezing roller; 52. Fixing part; 53. Supporting part; 54. Water-absorbing cotton roller;

[0047] 521, connecting seat; 522, U-shaped seat; 523, locking rod; 524, L-shaped plate; 525, tension spring; 526, rack; 527, first transmission gear; 528, follower gear; 529, first linkage gear;

[0048] 531, mounting rod; 532, hexagonal groove; 533, hexagonal column; 534, locking hole;

[0049] 611, sliding rod; 612, sleeve plate; 613, movable block; 614, twisting and kneading plate; 615, compression spring;

[0050] 621, rotating rod; 622, second linkage gear; 623, cam; 624, tooth plate; 625, force block; 626, support plate; 627, second transmission gear; 628, cross bar;

[0051] 711, eccentric wheel; 712, sleeve block; 713, moving rod; 714, first hollow cylinder; 715, first piston plate; 716, air pipe; 717, clamping roller;

[0052] 721, guide rod; 722, movable seat; 723, top roller; 724, second hollow cylinder; 725, lifting rod; 726, second piston plate; 727, spring. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0054] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14As shown, a device for testing the heating performance of an electric heating tape comprises a shell 1, a top cover 2 is arranged at the upper end of the shell 1, four sets of guide members 4 are arranged in the inner cavity of the shell 1, and electric heating plates 8 are arranged on the inner walls on both sides of the left and right sides of the shell 1;

[0056] The traction mechanism 3 is arranged at both ends of the housing 1, and a driving member 31 is also installed on the front of the housing 1;

[0057] A cleaning mechanism 5, which is disposed on the housing 1 and is used to clean the electric heating cable;

[0058] The twisting and kneading mechanism 6 includes a twisting and kneading portion 61 disposed in the housing 1, and a linkage portion 62 is disposed on the back of the housing 1;

[0059] The bending mechanism 7 includes a gas delivery portion 71 disposed on the back of the housing 1, and a bending portion 72 is disposed on the bottom surface of the inner cavity of the housing 1;

[0060] Among them, the cleaning mechanism 5 includes squeezing rollers 51, and the two squeezing rollers 51 are rotatably connected to the inside of the shell 1. The inner wall of the shell 1 is also provided with four fixing parts 52, and each two corresponding fixing parts 52 are installed with a supporting part 53, and the supporting part 53 is installed with a water-absorbing cotton roller 54.

[0061] In this embodiment, the housing 1 is made of insulating material, which ensures the insulation performance of the device as a whole, thereby avoiding the risk of leakage during the test. The insulating material of the housing 1 also has good temperature resistance and can withstand a long-term high-temperature test environment, ensuring the accuracy and repeatability of the test;

[0062] In addition, drainage pipes are provided on both sides of the housing 1 to facilitate drainage of the water source after use.

[0063] Preferably, each group of guide members 4 is composed of two guide rollers, which are rotatably connected in the housing 1 and have a limit ring fixedly sleeved on them.

[0064] In this embodiment, the setting of the guide roller ensures the stable operation of the electric heating tape during the test. The limit ring further ensures the correct guidance of the electric heating tape during the test. Through this design, the heating performance test of the electric heating tape can be carried out more accurately and efficiently, thereby providing reliable support for the quality control of the electric heating tape.

[0065] Preferably, the top cover 2 includes a protective cover 201, which is arranged on the top surface of the outer shell 1. The inner cavity top surface of the protective cover 201 is provided with heating lamps 202 distributed in an array. The top surface of the outer shell 1 is provided with two terminal sockets 203, and the top surface of the outer shell 1 is also provided with a warning light 204.

[0066] In this embodiment, first, a proper amount of clean water needs to be injected into the housing 1 to ensure that the liquid level is higher than the guide member 4 but lower than the squeezing roller 51. Fig.14 In the manner shown, the electric heating tape to be tested is passed from the right side of the device to the left side, and the two ends of the electric heating tape are fixed on two terminal blocks 203 respectively. The remaining electric heating tape to be tested is located on the right side of the device. After that, the heating lamp 202 is turned on to heat the inside of the housing 1. In addition, the inner walls on both sides of the housing 1 are equipped with electric heating plates 8, which can heat the water source inside the housing 1 and heat the electric heating tape by heat transfer.

[0067] It is particularly important to point out that a battery and a short-circuit protection device are installed on the protective cover 201. The short-circuit protection device is connected in series to the input end of the battery (not shown in the figure). When the two ends of the electric heating cable are connected to the two wiring sockets 203, the electric heating cable can form a closed loop with the wiring sockets 203, the battery and the warning light 204. In this case, the warning light 204 will be lit, thereby providing an intuitive indication.

[0068] Both the battery and the short-circuit protector are products currently available on the market. When selecting, you should try to choose one that meets the requirements of this application on the premise that the specifications and usage scenarios are suitable. The specific model specifications are not limited here.

[0069] Preferably, the traction mechanism 3 includes a bracket 301, and the two brackets 301 are fixedly connected to the top surface of the shell 1. The bracket 301 is slidably connected with a mounting seat 302, and a threaded rod 303 is threadedly connected to the bracket 301, and the lower end of the threaded rod 303 is rotatably connected to the mounting seat 302, and a first roller 304 is rotatably connected to the mounting seat 302, and the two ends of the shell 1 are rotatably connected with the second roller 305, and the central axis of the left second roller 305 is fixedly connected to the output shaft of the driving member 31, and the rear end of the left second roller 305 is also fixedly installed with a first driving gear 306 and a second driving gear 307.

[0070] In this embodiment, the mounting seat 302 and the first roller 304 are synchronously lowered by rotating the threaded rod 303. This ensures that the electric heating belt is firmly clamped through the synergistic effect of the first roller 304 and the second roller 305, thereby preventing it from loosening. After the water source is heated to a predetermined time, the driving member 31 (rotating motor) is started to rotate the second roller 305 on the left side, thereby pulling the electric heating belt to move.

[0071] Preferably, the fixing portion 52 includes a connecting seat 521, which is rotatably connected to the housing 1, one end of the connecting seat 521 is fixedly connected to a U-shaped seat 522, both ends of the U-shaped seat 522 are plugged with locking rods 523, an outer wall of one end of the locking rod 523 is fixedly sleeved with an L-shaped plate 524, both sides of the U-shaped seat 522 are fixedly connected to tension springs 525, and the other end of the tension spring 525 is fixedly connected to the L-shaped plate 524, the L-shaped plate 524 is fixedly connected to a rack 526, one side of the U-shaped seat 522 is rotatably connected to a first transmission gear 527, one of the rear connecting seats 521 is fixedly installed with a follower gear 528, and the two front connecting seats 521 are fixedly installed with first linkage gears 529;

[0072] The support portion 53 includes two mounting rods 531 , one end of one mounting rod 531 is provided with a hexagonal groove 532 , one end of the other mounting rod 531 is fixedly connected with a hexagonal column 533 , and one end of the mounting rod 531 is also provided with a locking hole 534 .

[0073] In this embodiment, the rotation of the second roller 305 drives the first driving gear 306, which then meshes with the follower gear 528, causing one of the fixed parts 52 to rotate. The rotation of the fixed part 52 drives the relative fixed part 52 to rotate through the support part 53. At the same time, the first linkage gears 529 on the two front fixed parts 52 mesh with each other, thereby causing the absorbent cotton rollers 54 on the two support parts 53 to rotate relative to each other. The rotation direction of the absorbent cotton roller 54 is opposite to the moving direction of the electric heating belt to increase the friction force, thereby effectively wiping the water source on the electric heating belt. In addition, the absorbent cotton roller 54 is pressed by the squeezing roller 51 during the rotation process, which can squeeze out the adsorbed water source, maintain the continuous water absorption effect of the absorbent cotton roller 54, and then wipe the water source on the electric heating plate belt clean, reducing the cleaning work of subsequent staff.

[0074] When the absorbent cotton roller 54 needs to be replaced, the user can pull the locking rod 523 and stretch the tension spring 525 to disengage the locking rod 523 from the locking hole 534 on the mounting rod 531. When one of the locking rods 523 is pulled, the rack 526 will be driven to move, and the rack 526 will mesh with the first transmission gear 527 for transmission, causing the first transmission gear 527 to rotate. The rotation of the first transmission gear 527 will drive the other rack 526 to move in the opposite direction, thereby pulling the other locking rod 523, so that the two locking rods 523 are simultaneously disengaged from the locking hole 534, which is convenient for disassembly and installation, and convenient for subsequent replacement of the absorbent cotton roller 54. After the two spliced ​​mounting rods 531 are disassembled from the two fixing parts 52, the two mounting rods 531 can be pulled away from each other to disassemble them, and then the absorbent cotton roller 54 can be pulled out from the mounting rod 531 to replace a new absorbent cotton roller 54.

[0075] In addition, a rubber pad is provided inside the hexagonal groove 532 to enhance the damping effect with the hexagonal column 533, improve the tightness of the connection, and prevent loosening. The inner ring of the absorbent cotton roller 54 is provided with a groove, and the outer ring of the mounting rod 531 is provided with a corresponding convex strip to ensure that the absorbent cotton roller 54 can rotate with the mounting rod 531 to prevent the absorbent cotton roller 54 from slipping.

[0076] Preferably, the twisting and kneading part 61 includes a slide bar 611, two slide bars 611 are slidably plugged into the housing 1 in a piston-like manner, a sleeve plate 612 is fixedly connected to the slide bar 611, a movable block 613 is slidably plugged into the sleeve plate 612, a twisting and kneading plate 614 is fixedly connected to the movable block 613, one side of the movable block 613 is connected to a compression spring 615 distributed in an array, and the other end of the compression spring 615 is fixedly connected to the inner wall of the sleeve plate 612;

[0077] Among them, the linkage part 62 includes a rotating rod 621, which is rotatably connected to the back side of the shell 1, and a second linkage gear 622 and a cam 623 are fixedly installed on the rotating rod 621. The rear end of the sliding rod 611 is fixedly connected to a tooth plate 624, one of the tooth plates 624 is provided with a force block 625, and the force block 625 is slidably connected to the groove on the cam 623. The back side of the shell 1 is also fixedly connected to a support plate 626, and the support plate 626 is rotatably connected to a second transmission gear 627. The back side of the shell 1 is fixedly connected to a cross bar 628, and the cross bar 628 is slidably connected to the tooth plate 624.

[0078] In this embodiment, the rotation of the second roller 305 drives the second driving gear 307 to rotate accordingly. The second driving gear 307 and the second linkage gear 622 are driven by a toothed belt, thereby causing the rotating rod 621 to rotate. The rotation of the rotating rod 621 drives the cam 623 to rotate, and the rotation of the cam 623 causes the force block 625 to reciprocate along the groove on the cam 623. The movement of the force block 625 drives the tooth plate 624 fixedly connected thereto to reciprocate, and the reciprocating movement of the tooth plate 624 drives the sliding rod 611 fixedly connected thereto to reciprocate, and the reciprocating movement of the sliding rod 611 drives the twisting and kneading plate 614 to reciprocate. During the movement of the tooth plate 624, one of the tooth plates 624 is meshed with the second transmission gear 627 for transmission, causing the second transmission gear 627 to rotate. The second transmission gear 627 is meshed with the other tooth plate 624, thereby causing the two tooth plates 624 to move toward each other. The opposite movement of the two tooth plates 624 drives the two twisting and kneading plates 614 to move toward each other, twisting and kneading the electric heating tape, so as to detect the strength, firmness and wear resistance of the insulation layer of the electric heating tape.

[0079] The movable block 613 fixedly connected to the twisting plate 614 is slidably inserted in the sleeve plate 612 and is connected to a compression spring 615, which ensures that the movable block 613 can be extended and retracted along the sleeve plate 612, while applying a certain pressure to the electric heating tape. This design ensures that during the twisting process, the twisting plate 614 can fit the electric heating tape tightly, thereby simulating the friction and pressure conditions that may be encountered in actual use. In this way, the performance of the electric heating tape in long-term use can be effectively tested to ensure its reliability and durability in various environments.

[0080] In addition, the cross bar 628 and the tooth plate 624 form a sliding structure, which can guide and limit the tooth plate 624 to prevent it from rotating.

[0081] Preferably, the gas delivery part 71 includes an eccentric wheel 711, which is fixedly mounted on a rear connection seat 521, a sleeve block 712 and a first hollow cylinder 714 are fixedly connected to the back of the housing 1, a moving rod 713 is slidably connected to the sleeve block 712, and one end of the moving rod 713 is slidably inserted in the first hollow cylinder 714, one end of the moving rod 713 is fixedly connected to a first piston plate 715, and the first hollow cylinder 714 is connected to an air delivery pipe 716, and the other end of the moving rod 713 is rotatably connected to two clamping rollers 717, and the two clamping rollers 717 are clamped on the eccentric wheel 711;

[0082] Among them, the bending portion 72 includes a guide rod 721, and the four guide rods 721 are fixedly connected to the bottom surface of the inner cavity of the shell 1. The four guide rods 721 are slidably connected to a moving seat 722, and the moving seat 722 is rotatably connected to a top roller 723. The bottom surface of the inner cavity of the shell 1 is also fixedly connected to a second hollow cylinder 724, and one end of the air pipe 716 is connected to the second hollow cylinder 724. The upper end of the second hollow cylinder 724 is slidably inserted with a lifting rod 725, and the upper end of the lifting rod 725 is fixedly connected to the moving seat 722, and the lower end of the lifting rod 725 is fixedly connected to a second piston plate 726, and the lower end of the lifting rod 725 is also sleeved with a spring 727.

[0083] In this embodiment, the follower gear 528 drives the eccentric wheel 711 to rotate while driving the fixed part 52 to rotate. The two rotating clamping rollers 717 on the moving rod 713 are clamped on the eccentric wheel 711, so that the rotation of the eccentric wheel 711 can cause the moving rod 713 to reciprocate along the sleeve block 712. When the moving rod 713 pushes the first piston plate 715 to move along the first hollow cylinder 714 to compress the air, the compressed air enters the second hollow cylinder 724 through the air pipe 716, and then pushes the second piston plate 726 to move upward. The rise of the second piston plate 726 drives the lifting rod 725 to move upward and compresses the spring 727. As the lifting rod 725 rises, the moving seat 722 moves upward along the guide rod 721, thereby pushing the top roller 723 to move upward; conversely, when the moving rod 713 pulls the first piston plate 715 to move along the first hollow cylinder 714 to extract air, the air pipe 716 extracts the air in the second hollow cylinder 724, and the restoring force of the spring 727 causes the top roller 723 to reset, thereby realizing the continuous lifting and lowering of the top roller 723 to perform different bending and stretching operations. This dynamic lifting mechanism can simulate the dynamic stress that the electric heating cable may encounter in actual applications, such as random bending and stretching.

[0084] As the top roller 723 is lifted, the bending angle of the electric heating tape increases, and its stretching length also increases accordingly; correspondingly, when the top roller 723 is lowered, the bending angle of the electric heating tape decreases, and its stretching length also decreases accordingly.

[0085] During the bending, stretching and twisting of the electric heating cable, if its insulation layer is broken, current will leak into the surrounding hot water through the broken part. This leakage current behavior will trigger the short-circuit protection device in the circuit, causing the circuit to be cut off, resulting in the warning light 204 going out. Similarly, if the internal conductive material of the electric heating cable is broken during the bending, stretching and twisting process, it will also cause a short circuit. Once a short circuit occurs, the circuit will also be cut off, causing the warning light 204 to go out.

[0086] By observing the status of the warning light 204, potential problems of the electric heating cable during the test process can be discovered in time, thereby avoiding possible dangers and losses. This design not only improves the safety of the test, but also enhances the reliability of the test results. By simulating the dynamic stress in the actual use environment, the device can effectively evaluate the performance and durability of the electric heating cable, ensuring its safe and stable operation in actual applications.

[0087] Working principle:

[0088] Introduction and fixation of electric heating tape:

[0089] First, the electric heating cable to be tested is inserted from the right side to the left side of the device, and its two ends are respectively fixed on the two terminal sockets 203 arranged on the top surface of the housing 1. At this time, the electric heating cable forms a closed circuit, connecting the battery, warning light 204 and other components.

[0090] Heating process:

[0091] Inject a proper amount of clean water into the housing 1, ensuring that the liquid level is higher than the guide 4 but lower than the squeezing roller 51. Start the heating lamp 202 on the top cover 2 and the electric heating plates 8 on the inner walls of both sides of the housing 1 to heat the internal water source and evenly heat the electric heating tape passing through it by heat transfer.

[0092] During the heating process, the short-circuit protection device on the protective cover 201 is in working condition. Once the electric heating cable is damaged and current leaks into the water, the short-circuit protection will be triggered, cutting off the circuit and turning off the warning light 204, indicating that there is a fault.

[0093] Traction moving mechanism:

[0094] The position of the mounting base 302 is adjusted by rotating the threaded rod 303, so that the first roller 304 and the second roller 305 can firmly clamp the electric heating tape. Then the driving member 31 (such as a rotary motor) is started to drive the second roller 305 on the left to rotate, thereby pulling the electric heating tape to continue to move to the left, ensuring that the entire electric heating tape can be tested.

[0095] Cleaning:

[0096] During the movement of the electric heating belt, the absorbent cotton roller 54 rotates in the opposite direction to the absorbent cotton roller, and wipes off the water source attached to the surface by means of friction. At the same time, the squeezing roller 51 presses the absorbent cotton roller 54 to squeeze out excess water, keep it dry, and ensure the cleaning effect. When the absorbent cotton roller 54 needs to be replaced, it can be easily disassembled and installed by pulling the locking rod 523.

[0097] Twisting and bending simulation:

[0098] As the electric heating tape moves, the cam 623 in the twisting mechanism 6 rotates to cause the twisting plate 614 to apply periodic pressure to the electric heating tape, simulating the friction and pressure conditions that may be encountered in actual use, and testing the strength and wear resistance of the insulation layer.

[0099] The bending mechanism 7 utilizes the eccentric wheel 711 to drive the first piston plate 715 to compress the air, thereby pushing the top roller 723 to reciprocate up and down, thereby realizing the continuous bending and stretching operation of the electric heating belt, and further simulating the dynamic stress changes in the real application scenario.

[0100] Safety monitoring and feedback:

[0101] During the entire test period, if any problem occurs in the electric heating cable (such as insulation cracking or conductor breakage), the short-circuit protection device in the circuit will be immediately triggered, the power supply will be cut off and the warning light 204 will be turned off, providing an instant safety warning, ensuring the safety of the test personnel and improving the reliability of the test results.

[0102] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0103] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric heating belt heating performance testing device, characterized in that: It comprises a shell (1), the upper end of the shell (1) is provided with a top cover (2), the inner cavity of the shell (1) is provided with four groups of guide members (4), and the inner walls on both sides of the left and right sides of the shell (1) are provided with electric heating plates (8); A traction mechanism (3), wherein the traction mechanism (3) is arranged at both ends of the housing (1), and a driving member (31) is also installed on the front side of the housing (1); A cleaning mechanism (5), wherein the cleaning mechanism (5) is arranged on the housing (1) and is used to clean the electric heating belt; A twisting and kneading mechanism (6), the twisting and kneading mechanism (6) comprising a twisting and kneading portion (61) arranged in the housing (1), and a linkage portion (62) being arranged on the back side of the housing (1); A bending mechanism (7), the bending mechanism (7) comprising a gas delivery portion (71) arranged on the back side of the shell (1), and a bending portion (72) is arranged on the bottom surface of the inner cavity of the shell (1); The cleaning mechanism (5) comprises a squeezing roller (51), wherein the two squeezing rollers (51) are both rotatably connected to the inside of the outer shell (1), and the inner wall of the outer shell (1) is also provided with four fixing parts (52), and each two corresponding fixing parts (52) are provided with a supporting part (53), and the supporting part (53) is provided with a water-absorbing cotton roller (54).

2. The electric heating belt heating performance testing device according to claim 1 is characterized in that: Each group of guide members (4) is composed of two guide rollers, which are rotatably connected in the outer shell (1), and a limiting ring is fixedly sleeved on the guide rollers.

3. The electric heating belt heating performance testing device according to claim 1 is characterized in that: The top cover (2) comprises a protective cover (201), the protective cover (201) being arranged on the top surface of the outer shell (1), the inner cavity top surface of the protective cover (201) being provided with heating lamps (202) distributed in an array, the top surface of the outer shell (1) being provided with two wiring sockets (203), and the top surface of the outer shell (1) being further provided with a warning light (204).

4. The electric heating belt heating performance testing device according to claim 1 is characterized in that: The traction mechanism (3) comprises a bracket (301), wherein the two brackets (301) are fixedly connected to the top surface of the housing (1), a mounting seat (302) is slidably connected to the bracket (301), a threaded rod (303) is threadedly connected to the bracket (301), and the lower end of the threaded rod (303) is rotatably connected to the mounting seat (302), a first roller (304) is rotatably connected to the mounting seat (302), and second rollers (305) are rotatably connected to both ends of the housing (1), and the central rotation axis of the left second roller (305) is fixedly connected to the output shaft of the driving member (31), and the rear end of the left second roller (305) is also fixedly mounted with a first driving gear (306) and a second driving gear (307).

5. The electric heating belt heating performance testing device according to claim 1 is characterized in that: The fixing portion (52) comprises a connecting seat (521), wherein the connecting seat (521) is rotatably connected to the outer shell (1), one end of the connecting seat (521) is fixedly connected to a U-shaped seat (522), both ends of the U-shaped seat (522) are plugged with locking rods (523), an outer wall of one end of the locking rod (523) is fixedly sleeved with an L-shaped plate (524), both sides of the U-shaped seat (522) are fixedly connected to tension springs (525), and the other end of the tension spring (525) is fixedly connected to the L-shaped plate (524), the L-shaped plate (524) is fixedly connected to a rack (526), ​​one side of the U-shaped seat (522) is rotatably connected to a first transmission gear (527), one of the rear connecting seats (521) is fixedly mounted with a follower gear (528), and the two front connecting seats (521) are fixedly mounted with a first linkage gear (529).

6. The electric heating belt heating performance testing device according to claim 1 is characterized in that: The support portion (53) comprises two mounting rods (531), one end of one of the mounting rods (531) is provided with a hexagonal groove (532), one end of the other mounting rod (531) is fixedly connected with a hexagonal column (533), and one end of the mounting rod (531) is also provided with a locking hole (534).

7. The electric heating belt heating performance testing device according to claim 1 is characterized in that: The twisting and kneading portion (61) includes a sliding rod (611), and the two sliding rods (611) are slidably inserted on the outer shell (1) in a piston-like manner. A sleeve plate (612) is fixedly connected to the sliding rod (611), and a movable block (613) is slidably inserted on the sleeve plate (612). A twisting and kneading plate (614) is fixedly connected to the movable block (613), and a compression spring (615) is connected to one side of the movable block (613) in an array-distributed manner, and the other end of the compression spring (615) is fixedly connected to the inner wall of the sleeve plate (612).

8. The electric heating belt heating performance testing device according to claim 7, characterized in that: The linkage part (62) comprises a rotating rod (621), the rotating rod (621) is rotatably connected to the back side of the housing (1), a second linkage gear (622) and a cam (623) are fixedly mounted on the rotating rod (621), a tooth plate (624) is fixedly connected to the rear end of the sliding rod (611), one of the tooth plates (624) is provided with a force block (625), and the force block (625) is slidably connected to a groove on the cam (623), a support plate (626) is also fixedly connected to the back side of the housing (1), a second transmission gear (627) is rotatably connected to the support plate (626), a cross bar (628) is fixedly connected to the back side of the housing (1), and the cross bar (628) is slidably connected to the tooth plate (624).

9. The electric heating belt heating performance testing device according to claim 5, characterized in that: The air delivery part (71) comprises an eccentric wheel (711), and the eccentric wheel (711) is fixedly mounted on a rear connection seat (521); a sleeve block (712) and a first hollow cylinder (714) are fixedly connected to the back side of the housing (1); a moving rod (713) is slidably connected to the sleeve block (712), and one end of the moving rod (713) is slidably inserted into the first hollow cylinder (714); one end of the moving rod (713) is fixedly connected to a first piston plate (715); the first hollow cylinder (714) is connected to an air delivery pipe (716); the other end of the moving rod (713) is rotatably connected to two clamping rollers (717), and the two clamping rollers (717) are clamped on the eccentric wheel (711).

10. The electric heating belt heating performance testing device according to claim 9, characterized in that: The bending portion (72) comprises a guide rod (721), four of the guide rods (721) are fixedly connected to the inner cavity bottom surface of the shell (1), a movable seat (722) is slidably connected to the four guide rods (721), a top roller (723) is rotatably connected to the movable seat (722), a second hollow cylinder (724) is also fixedly connected to the inner cavity bottom surface of the shell (1), and one end of the air supply pipe (716) is connected to the second hollow cylinder (724), a lifting rod (725) is inserted at the upper end of the second hollow cylinder (724) in a piston-like sliding manner, and the upper end of the lifting rod (725) is fixedly connected to the movable seat (722), the lower end of the lifting rod (725) is fixedly connected to the second piston plate (726), and the lower end of the lifting rod (725) is also sleeved with a spring (727).

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