PVC cable material weather resistance comprehensive test device

Abstract

The application discloses a PVC cable material weather resistance comprehensive testing device, and relates to the technical field of material weather resistance testing.The device comprises an outer protection assembly, a rotating assembly and clamping assemblies, the clamping assemblies are provided in plurality, and the rotating assembly comprises a revolution gear.The PVC cable material weather resistance comprehensive testing device is started to drive the revolution gear to rotate through the output shaft of the servo motor, and the purpose of cable material revolution test is achieved.Because the first tooth column and the revolution gear are mutually engaged, and the first tooth column and the second tooth column are mutually engaged, the clamping assembly is driven to rotate, and the PVC cable material test section can both revolve and rotate during the test process, the existing weather resistance testing device is avoided to adopt a static sample holder, the aging degree is more uniform, and the problems of poor aging uniformity, distorted test data and incapability of simulating real working conditions of the existing device are solved.

Description

Technical Field

[0001] This invention relates to the field of material weathering resistance testing technology, specifically to a comprehensive weathering resistance testing device for PVC cable materials. Background Technology

[0002] PVC cable material is a polymer composite material for cables made primarily from polyvinyl chloride resin, with the addition of plasticizers, stabilizers, flame retardants, fillers, and other additives, through mixing and granulation. However, because PVC is very sensitive to light, heat, oxygen, humidity, and wind and rain, it is prone to aging. When used outdoors for a long time, ultraviolet radiation causes molecular chain breakage, high and low temperature cycling causes hardening and brittleness, rain and moisture accelerate degradation, and oxidation causes yellowing, powdering, and cracking. Therefore, all PVC cables intended for use outdoors, in open-air environments exposed to sun and rain must undergo weather resistance testing. Comprehensive weather resistance testing also refers to artificial accelerated aging testing, which simulates and accelerates harsh outdoor environments in a laboratory to determine whether the material will deteriorate in a short period of time.

[0003] Existing weathering test equipment mostly uses a single rotating sample holder or a static sample holder. However, the sample is in a static clamp and cannot simulate the stress, bending, wind vibration and other working conditions of the cable in actual use. In reality, cables are subject to wind swaying and stress relaxation outdoors, and the aging speed is faster at stress concentration points. Static testing cannot reflect this real situation, and the aging uniformity is poor, which will lead to a large deviation between the test results and the actual working conditions.

[0004] Therefore, we propose a comprehensive weather resistance testing device for PVC cable materials to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a comprehensive weather resistance testing device for PVC cable materials, so as to solve the problems of poor aging uniformity, distorted test data, and inability to simulate real working conditions in existing devices mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive weather resistance testing device for PVC cable materials, comprising an outer sheath assembly, a rotating assembly, and a clamping assembly. Multiple clamping assemblies are provided. The rotating assembly includes a planetary gear, the outer surface of which is meshed with multiple first toothed posts, and the outer surface of each first toothed post is meshed with a second toothed post. The clamping assembly includes a driven mechanism, an active mechanism, and a fastening mechanism. The active mechanism includes a first vertical plate, the top of which is rotatably fitted with a first anti-detachment block. One end of the first anti-detachment block is fixedly connected to a first adjusting plate, the outer surface of one end of the first adjusting plate is fixedly connected to a first adjusting rod, and the outer surface of one end of the first adjusting rod is rotatably fitted with a first rotating ring. The driven mechanism includes a second vertical plate, the top of which is rotatably fitted with a second anti-detachment block, one end of which is fixedly connected to a second adjusting plate, the outer surface of one end of the second adjusting plate is fixedly connected to a second adjusting rod, and the outer surface of one end of the second adjusting rod is rotatably fitted with a second rotating ring. The fastening mechanism includes a cross buckle.

[0007] Preferably, the clamping assembly further includes a bearing base plate, which is inclined, and a fixing frame is fixedly connected to the bottom of the bearing base plate. A support rod is fixedly connected to the bottom of the fixing frame, and the first upright plate and the second upright plate are fixedly installed on the top of the bearing base plate.

[0008] Preferably, a support frame is fixedly connected to the outer surface of the first upright plate, and a drive motor is provided on the top of the support frame. The output shaft of the drive motor is fixedly connected to the other side of the first anti-detachment block.

[0009] Preferably, the outer surfaces of the first adjusting rod and the second adjusting rod are slidably connected to the inner walls of the two sides of the cross buckle, the top of the cross buckle is fixedly connected to a clamping base plate, the top center of the clamping base plate is fixedly connected to a fixing bolt, the outer surface of the fixing bolt is slidably connected to a clamping movable plate, a support spring is provided between the bottom of the clamping movable plate and the top of the clamping base plate, a limit rod is fixedly connected to the top of the clamping base plate near the edge, the top end of the limit rod slides through the clamping movable plate to its top, and a fastening nut is threadedly connected to the outer surface of the fixing bolt.

[0010] Preferably, a fixed clamping plate is fixedly connected to the top of both the first rotating ring and the second rotating ring. An adjusting bolt is fixedly connected to the middle of the top of each fixed clamping plate. A movable pressure plate is slidably connected to the outside of each adjusting bolt. An adjusting nut is bolted to the outer surface of each adjusting bolt. A set of positioning side rods is fixedly connected to the top of each fixed clamping plate. Each movable pressure plate is slidably sleeved on the outside of each set of positioning side rods. Anti-slip pads are fixedly connected to the outer surfaces of each fixed clamping plate, movable pressure plate, clamping base plate, and clamping movable plate.

[0011] Preferably, a positioning hole is provided at the top center of the planetary gear, a positioning block is rotatably connected to the inner wall of the positioning hole, and multiple mounting plates are fixedly connected to the outer surface of the positioning block. Each mounting plate has a first rotating hole and a second rotating hole at one end.

[0012] Preferably, a first rotating shaft is rotatably connected to the inner wall of each first rotating hole, each first toothed post is fixedly installed at the bottom of each first rotating shaft, and a first limiting block is fixedly connected to the bottom of each first toothed post. A second rotating shaft is rotatably connected to the inner wall of each second rotating hole, each second toothed post is fixedly installed at the bottom of each second rotating shaft, each support rod is fixedly installed at the top of each second rotating shaft, and a second limiting block is fixedly connected to the bottom of each second toothed post. A connecting buckle is movably connected between the outer surface of each first limiting block and the outer surface of each second limiting block.

[0013] Preferably, a support plate is fixedly connected to the bottom of the planetary gear, a servo motor is provided on the outer surface of the support plate, the output shaft of the servo motor is fixedly connected to the bottom of the positioning block, and multiple fixing rods are fixedly connected to the bottom of the planetary gear.

[0014] Preferably, the outer protective assembly includes a supporting chassis, with multiple fixing rods fixedly connected to the inner bottom surface of the supporting chassis. Two connecting plates are symmetrically fixedly connected to the top of the supporting chassis, and a test top plate is fixedly connected to the top of the two connecting plates. The test top plate has multiple ventilation holes on its top. Maintenance door panels are rotatably connected to both sides of one of the connecting plates via hinges. Door handles are fixedly connected to the outer surfaces of both maintenance door panels. A support frame is fixedly connected to the outer surface of the supporting chassis near the bottom.

[0015] Preferably, the inner wall of the test top plate is provided with a light irradiation module, a spray module, an oxidation module and a blowing module. The light irradiation module is used to simulate the aging of cable materials caused by sunlight, the spray module is used to simulate the aging of cable materials caused by rain, the oxidation module is used to simulate the aging of cable materials caused by ozone in the air, and the blowing module is used to simulate the aging of cable materials caused by wind.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. During use, the servo motor is started, causing its output shaft to drive the planetary gear to rotate, thus completing the purpose of the planetary test of the cable material. Due to the meshing between the first toothed column and the planetary gear, and the meshing between the first toothed column and the second toothed column, the clamping assembly will rotate. This has the advantage that the PVC cable material test section can both rotate and revolve during the test, avoiding the situation where existing weather resistance testing devices mostly use static sample holders. This makes the aging degree more uniform and solves the problems of poor aging uniformity, distorted test data, and inability to simulate real working conditions in existing devices.

[0017] 2. In use, one end of the material is placed between the clamping movable plate and the clamping base plate, and the other end of the material is placed between the fixed clamping plate and the movable pressure plate on the corresponding side to complete the clamping of the sample material. By starting the drive motor, the first adjusting plate and the first adjusting rod are driven to rotate simultaneously. When the cross buckle moves continuously, it will continuously pull and push the test sample material of the two clamped PVC cables, thereby accelerating the aging of the material.

[0018] 3. During use, the supporting chassis and the test top plate are connected together to form a simulated aging environment, which can then complete a comprehensive weather resistance test of PVC cable materials. The light module induces photo-oxidative aging of PVC cable materials, the spray module accelerates hydrolytic aging and physical erosion of PVC materials, the oxidation module accelerates ozone aging and cracking of PVC materials, and the blowing module accelerates heat exchange, moisture evaporation and physical fatigue of PVC materials. Attached Figure Description

[0019] Figure 1 This is a first-view perspective perspective view of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 2 This is a second-view perspective perspective view of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 3 This is a third-view sectional perspective view of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 4 This is a bottom perspective view of the test top plate of the comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 5 This is a first-view perspective perspective view of the rotating component of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 6 This is a second-view perspective perspective view of the rotating component of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 7 This is a perspective view of the clamping assembly of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 8 This is a three-dimensional view of the clamping assembly of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 9 This is a first-view perspective perspective view of the fastening mechanism of a comprehensive weather resistance testing device for PVC cable materials according to the present invention. Figure 10 This is a second-view perspective perspective view of the fastening mechanism of a comprehensive weather resistance testing device for PVC cable materials according to the present invention.

[0020] In the picture: 1. Outer protective assembly; 101. Support chassis; 102. Connecting plate; 103. Maintenance door panel; 104. Door handle; 105. Test top plate; 106. Ventilation hole; 2. Rotating assembly; 201. Revolutionary gear; 202. Positioning hole; 203. Positioning block; 204. Mounting plate; 205. Fixing rod; 206. Support plate; 207. Servo motor; 208. First rotating hole; 209. Second rotating hole; 210. First rotating shaft; 211. Second rotating shaft; 212. First gear column; 213. Second gear column; 214. First limiting block; 215. Second limiting block; 216. Connecting buckle; 3. Clamping assembly; 301. Support rod; 302. Fixing frame; 303. Bearing base plate; 31. Driven mechanism; 310. Second upright plate; 311. Second anti-detachment block 312. Second adjusting plate; 313. Second adjusting rod; 314. Second rotating ring; 32. Active mechanism; 320. First upright plate; 321. Lifting frame; 322. First anti-detachment block; 323. First adjusting plate; 324. First adjusting rod; 325. Drive motor; 326. First rotating ring; 33. Fastening mechanism; 330. Cross buckle; 331. Clamping base plate; 332. Fixing bolt; 333. Clamping movable plate; 334. Limiting rod; 335. Fastening nut; 336. Support spring; 337. Anti-slip pad; 338. Positioning side rod; 339. Movable pressure plate; 3310. Fixed clamping plate; 3311. Adjusting bolt; 3312. Adjusting nut; 4. Support frame; 5. Illumination module; 6. Spraying module; 7. Oxidation module; 8. Blowing module. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Refer to Figures 1-10 As shown, the present invention provides a technical solution: a comprehensive weather resistance testing device for PVC cable materials, comprising an outer sheath assembly 1, a rotating assembly 2, and a clamping assembly 3. Multiple clamping assemblies 3 are provided. The rotating assembly 2 includes a planetary gear 201, the outer surface of which is meshed with multiple first toothed pillars 212, and the outer surface of each first toothed pillar 212 is meshed with a second toothed pillar 213. The clamping assembly 3 includes a driven mechanism 31, an active mechanism 32, and a fastening mechanism 33. The active mechanism 32 includes a first vertical plate 320, the top of which is rotatably fitted with a first anti-detachment block 322. One end of the 2 is fixedly connected to a first adjusting plate 323. A first adjusting rod 324 is fixedly connected to the outer surface of one end of the first adjusting plate 323. A first rotating ring 326 is rotatably sleeved on the outer surface of one end of the first adjusting rod 324. The driven mechanism 31 includes a second upright plate 310. A second anti-detachment block 311 is rotatably embedded in the top of the second upright plate 310. A second adjusting plate 312 is fixedly connected to one end of the second anti-detachment block 311. A second adjusting rod 313 is fixedly connected to the outer surface of one end of the second adjusting plate 312. A second rotating ring 314 is rotatably sleeved on the outer surface of one end of the second adjusting rod 313. The fastening mechanism 33 includes a cross buckle 330. (The last part, "revolving," appears to be a fragment and doesn't need a direct translation.) A positioning hole 202 is provided at the center of the top of the gear 201. A positioning block 203 is rotatably connected to the inner wall of the positioning hole 202. Multiple mounting plates 204 are fixedly connected to the outer surface of the positioning block 203. Each mounting plate 204 has a first rotating hole 208 and a second rotating hole 209 at one end. A first rotating shaft 210 is rotatably connected to the inner wall of each first rotating hole 208. Each first gear 212 is fixedly installed at the bottom of each first rotating shaft 210. A first limiting block 214 is fixedly connected to the bottom of each first gear 212. A second rotating shaft 211 is rotatably connected to the inner wall of each second rotating hole 209. Each 213 is fixedly installed at the bottom of each second rotating shaft 211, each support rod 301 is fixedly installed at the top of each second rotating shaft 211, each second gear 213 is fixedly connected to the bottom of a second limiting block 215, each first limiting block 214 and the second limiting block 215 are movably connected to a connecting buckle 216, the bottom of the planetary gear 201 is fixedly connected to a support plate 206, the outer surface of the support plate 206 is provided with a servo motor 207, the output shaft of the servo motor 207 is fixedly connected to the bottom of the positioning block 203, and the bottom of the planetary gear 201 is fixedly connected to multiple fixing rods 205.

[0023] In this embodiment, during use, a section of the PVC cable material is clamped and installed in the fastening mechanism 33, enabling it to undergo comprehensive weather resistance testing within the test chamber. By activating the servo motor 207, its output shaft rotates, causing the positioning block 203 to rotate within the positioning hole 202. This, in turn, causes multiple mounting plates 204 and their corresponding clamping components 3 to rotate simultaneously, completing the purpose of the cable material revolution test. Since the first toothed column 212 meshes with the revolution gear 201, the rotation of the mounting plate 204 causes the first toothed column 212 to rotate. Because each first toothed column 212... The corresponding second toothed column 213 meshes with it, so the second toothed column 213 will rotate synchronously, which will drive the clamping component 3 installed on its top to rotate. This has the advantage that the PVC cable material test section can both revolve and rotate during the test, avoiding the situation where existing weather resistance test devices mostly use static sample racks, making the aging degree more uniform. It solves the problems of poor aging uniformity, distorted test data, and inability to simulate real working conditions in existing devices. In addition, by setting the bearing base plate 303 to an inclined structure, the movement trajectory of the PVC cable material that rotates and revolves simultaneously can be wider.

[0024] Example 2: Figures 1-10As shown, the clamping assembly 3 includes a driven mechanism 31, an active mechanism 32, and a fastening mechanism 33. The active mechanism 32 includes a first upright plate 320, with a first anti-detachment block 322 rotatably embedded in the top of the first upright plate 320. One end of the first anti-detachment block 322 is fixedly connected to a first adjusting plate 323, and one end of the outer surface of the first adjusting plate 323 is fixedly connected to a first adjusting rod 324. One end of the outer surface of the first adjusting rod 324 is rotatably sleeved with a first rotating ring 326. The driven mechanism 31 includes a second upright plate 310, with a second anti-detachment block 311 rotatably embedded in the top of the second upright plate 310. One end of the second anti-detachment block 311 is fixedly connected to a second adjusting plate 312, and one end of the second adjusting plate 312 is fixedly sleeved with a first rotating ring 326. A second adjusting rod 313 is fixedly connected to the surface. A second rotating ring 314 is rotatably sleeved on the outer surface of one end of the second adjusting rod 313. The fastening mechanism 33 includes a cross buckle 330. The clamping assembly 3 also includes a bearing base plate 303, which is inclined. A fixing frame 302 is fixedly connected to the bottom of the bearing base plate 303. A support rod 301 is fixedly connected to the bottom of the fixing frame 302. A second upright plate 310 is fixedly installed on the top of the bearing base plate 303. A lifting frame 321 is fixedly connected to the outer surface of the first upright plate 320. A drive motor 325 is installed on the top of the lifting frame 321. The output shaft of the drive motor 325 is fixedly connected to the other side of the first anti-detachment block 322. Next, the outer surfaces of the first adjusting rod 324 and the second adjusting rod 313 are slidably connected to the inner walls of both sides of the cross buckle 330. A clamping base plate 331 is fixedly connected to the top of the cross buckle 330. A fixing bolt 332 is fixedly connected to the middle of the top of the clamping base plate 331. A clamping movable plate 333 is slidably connected to the outer surface of the fixing bolt 332. A support spring 336 is provided between the bottom of the clamping movable plate 333 and the top of the clamping base plate 331. A limit rod 334 is fixedly connected to the top of the clamping base plate 331 near the edge. The top of the limit rod 334 slides through the clamping movable plate 333 to its top. A fastening nut 335 is threadedly connected to the outer surface of the fixing bolt 332. The top of the rotating ring 326 and the top of the second rotating ring 314 are both fixedly connected to a fixed clamping plate 3310. An adjusting bolt 3311 is fixedly connected to the middle of the top of each fixed clamping plate 3310. A movable pressure plate 339 is slidably connected to the outside of each adjusting bolt 3311. An adjusting nut 3312 is bolted to the outer surface of each adjusting bolt 3311. A set of positioning side rods 338 is fixedly connected to the top of each fixed clamping plate 3310. Each movable pressure plate 339 is slidably sleeved on the outside of each set of positioning side rods 338. Anti-slip pads 337 are fixedly connected to the outer surface of each fixed clamping plate 3310, movable pressure plate 339, clamping base plate 331 and clamping movable plate 333.

[0025] In this embodiment, during use, the test sample material of the PVC cable is clamped and installed in the fastening mechanism 33. Each fastening mechanism 33 can clamp two test sample materials of the PVC cable. One end of the material is placed between the clamping movable plate 333 and the clamping base plate 331, and the other end of the material is placed between the fixed clamping plate 3310 and the movable pressure plate 339 on the corresponding side. Then, the fastening nut 335 and the adjusting nut 3312 are tightened to complete the clamping of one sample material. The clamping method of the other sample material is the same. After installation, the drive motor 325 is started, and its output shaft drives the first anti-detachment block 322 connected to it to rotate, thereby driving the first adjusting plate 323 and the first adjusting rod 324. Simultaneously rotating, since the cross buckle 330 connects the second adjusting rod 313 and the first adjusting rod 324, when the first adjusting rod 324 rotates, it will drive the second adjusting rod 313 to move simultaneously. Its direction of movement is vertical. The cross buckle 330 slides back and forth on the surfaces of the second adjusting rod 313 and the first adjusting rod 324. The first rotating ring 326 and the second rotating ring 314 are sleeved on the first adjusting rod 324 and the second adjusting rod 313 and rotate, but they will not slide on the two rods. So when the cross buckle 330 moves continuously, it will continuously pull and push the test sample material of the two PVC cables clamped, thereby accelerating the aging of the material. The drive motor 325 is a wireless motor, and its operation is not affected by revolution and rotation.

[0026] Example 3: Figures 1-10 As shown, the outer protective assembly 1 includes a supporting chassis 101. Multiple fixing rods 205 are fixedly connected to the inner bottom surface of the supporting chassis 101. Two connecting plates 102 are symmetrically fixedly connected to the top of the supporting chassis 101. A test top plate 105 is fixedly connected to the top of the two connecting plates 102. Multiple ventilation holes 106 are opened on the top of the test top plate 105. Maintenance door panels 103 are rotatably connected to both sides of one of the connecting plates 102 via hinges. Door handles 104 are fixedly connected to the outer surfaces of the two maintenance door panels 103. A support frame 4 is fixedly connected to the outer surface of the supporting chassis 101 near the bottom. A light module 5, a spray module 6, an oxidation module 7, and a blowing module 8 are provided on the inner wall of the test top plate 105. The light module 5 is used to simulate the aging of cable materials caused by sunlight. The spray module 6 is used to simulate the aging of cable materials caused by rainwater. The oxidation module 7 is used to simulate the aging of cable materials caused by ozone in the air. The blowing module 8 is used to simulate the aging of cable materials caused by wind.

[0027] In this embodiment, during use, the support chassis 101 and the test top plate 105 are connected together by two connecting plates 102, fixing the test clamping structure inside. The support frame 4 supports it, creating a simulated aging environment within the internal space. This allows for comprehensive weather resistance testing of the PVC cable material. Pulling the door handle 104 opens two maintenance doors 103, facilitating the replacement and installation of the PVC cable material being tested. A control system is installed at the top of the test top plate 105, and four modules simulating the aging environment are installed at its bottom. The light module 5 simulates ultraviolet, visible, and infrared radiation from sunlight, inducing photo-oxidative aging of the PVC cable material. The spray module 6 simulates rainwater erosion, moisture penetration, and freeze-thaw cycles, accelerating aging. Hydrolytic aging and physical corrosion of PVC materials: When moisture penetrates into the material, it can destroy the bond between plasticizer and resin. The rinsing of spray water can also remove surface additives, which can accelerate the pulverization and cracking of cable materials. Ozone is added inside the oxidation module 7 to simulate the strong oxidizing effect of ozone in the air, accelerating the ozone aging and cracking of PVC materials. The blowing module 8 simulates the blowing of natural wind and airflow circulation, accelerating the heat exchange, moisture evaporation and physical fatigue of PVC materials. These four modules do not work in isolation, but achieve multi-environmental factor coupled aging through a control system. Light, spray, blowing, ozone, and resting are cycled according to a preset program. When the light intensity increases, the wind speed is automatically increased to prevent the sample from overheating. After the spraying is completed, the blowing is automatically turned on to accelerate the drying of the sample. When the ozone concentration increases, the temperature is reduced to prevent ozone decomposition.

[0028] The device's operation and working principle are as follows: The support chassis 101 and the test top plate 105 are connected together by two connecting plates 102, fixing the test clamping structure inside. Supported by the support frame 4, this internal space creates a simulated aging environment, enabling comprehensive weather resistance testing of PVC cable materials. A control system is installed at the top of the test top plate 105, and four modules simulating the aging environment are installed at its bottom. The light module 5 simulates ultraviolet, visible, and infrared radiation from sunlight, inducing photo-oxidative aging of the PVC cable material. The spray module 6 simulates rainwater erosion, moisture penetration, and freeze-thaw cycles, accelerating the hydrolytic aging of the PVC material. Physical erosion is achieved by simulating the strong oxidizing effect of ozone in the air through oxidation module 7, accelerating the ozone aging and cracking of PVC materials. The blowing module 8 simulates natural wind and airflow circulation, accelerating heat exchange, moisture evaporation, and physical fatigue of the PVC materials. Servo motor 207 is activated, causing its output shaft to rotate, which in turn drives positioning block 203 to rotate inside positioning hole 202. This causes multiple mounting plates 204 and their corresponding clamping components 3 to rotate simultaneously, completing the purpose of the cable material revolution test. Since the first toothed column 212 meshes with the revolution gear 201, the rotation of mounting plate 204 causes the first toothed column 212 to rotate. Each first toothed column 212 is associated with a corresponding second toothed column. The 213 teeth mesh with each other, so the second toothed column 213 will rotate synchronously, thereby driving the clamping assembly 3 mounted on its top to rotate. By clamping the PVC cable test sample material in the fastening mechanism 33, each fastening mechanism 33 can clamp two PVC cable test sample materials. By placing one end of the material between the clamping movable plate 333 and the clamping base plate 331, and the other end of the material between the fixed clamping plate 3310 and the movable pressure plate 339 on the corresponding side, and then tightening the fastening nut 335 and the adjusting nut 3312, the clamping of one sample material is completed. The clamping method of the other sample material is the same. After installation, by starting the drive motor 325, its output shaft is activated. The first anti-detachment block 322 connected to it rotates, thereby causing the first adjusting plate 323 and the first adjusting rod 324 to rotate simultaneously. Since the cross buckle 330 connects the second adjusting rod 313 and the first adjusting rod 324, when the first adjusting rod 324 rotates, it will drive the second adjusting rod 313 to move simultaneously. Its direction of movement is vertical. The cross buckle 330 slides back and forth on the surfaces of the second adjusting rod 313 and the first adjusting rod 324. The first rotating ring 326 and the second rotating ring 314 are sleeved on the first adjusting rod 324 and the second adjusting rod 313 to rotate, but they will not slide on the two rods. So when the cross buckle 330 moves continuously, it will continuously pull and push the test sample materials of the two PVC cables held in it.

[0029] The wiring diagrams of the servo motor 207, drive motor 325, illumination module 5, spray module 6, oxidation module 7, and blower module 8 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the servo motor 207, drive motor 325, illumination module 5, spray module 6, oxidation module 7, and blower module 8 will not be explained in detail.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A comprehensive weather resistance testing device for PVC cable materials, comprising an outer sheath assembly (1), a rotating assembly (2), and a clamping assembly (3), wherein multiple clamping assemblies (3) are provided, characterized in that: The rotating assembly (2) includes a planetary gear (201), the outer surface of which is meshed with a plurality of first toothed pillars (212), and the outer surface of each first toothed pillar (212) is meshed with a second toothed pillar (213). The clamping assembly (3) includes a driven mechanism (31), an active mechanism (32), and a fastening mechanism (33). The active mechanism (32) includes a first upright plate (320). A first anti-detachment block (322) is rotatably embedded in the top of the first upright plate (320). A first adjusting plate (323) is fixedly connected to one end of the first anti-detachment block (322). A first adjusting rod (324) is fixedly connected to the outer surface of one end of the first adjusting plate (323). A first adjusting rod (324) is rotatably sleeved on the outer surface of one end of the first adjusting rod (324). A rotating ring (326), the driven mechanism (31) includes a second upright plate (310), the top of the second upright plate (310) is rotatably fitted with a second anti-detachment block (311), one end of the second anti-detachment block (311) is fixedly connected to a second adjusting plate (312), one end of the outer surface of the second adjusting plate (312) is fixedly connected to a second adjusting rod (313), one end of the outer surface of the second adjusting rod (313) is rotatably fitted with a second rotating ring (314), the fastening mechanism (33) includes a cross buckle (330); A support frame (321) is fixedly connected to the outer surface of the first upright plate (320). A drive motor (325) is provided on the top of the support frame (321). The output shaft of the drive motor (325) is fixedly connected to the other side of the first anti-detachment block (322). The outer surfaces of the first adjusting rod (324) and the second adjusting rod (313) are slidably connected to the inner walls of the two sides of the cross buckle (330). A clamping base plate (331) is fixedly connected to the top of the cross buckle (330). A fixing bolt (332) is fixedly connected to the middle of the top of the clamping base plate (331). A clamping movable plate (333) is slidably connected to the outer surface of the fixing bolt (332). A support spring (336) is provided between the bottom of the clamping movable plate (333) and the top of the clamping base plate (331). A limit rod (334) is fixedly connected to the top of the clamping base plate (331) near the edge. The top of the limit rod (334) slides through the clamping movable plate (333) to its top. A fastening nut (335) is threadedly connected to the outer surface of the fixing bolt (332). The top of the first rotating ring (326) and the top of the second rotating ring (314) are both fixedly connected to a fixed clamping plate (3310). An adjusting bolt (3311) is fixedly connected to the middle of the top of each fixed clamping plate (3310). A movable pressure plate (339) is slidably connected to the outside of each adjusting bolt (3311). An adjusting nut (3312) is bolted to the outer surface of each adjusting bolt (3311). A set of positioning side rods (338) is fixedly connected to the top of each fixed clamping plate (3310). Each movable pressure plate (339) is slidably sleeved on the outside of each set of positioning side rods (338). Anti-slip pads (337) are fixedly connected to the outer surfaces of each fixed clamping plate (3310), movable pressure plate (339), clamping base plate (331), and clamping movable plate (333).

2. The PVC cable material weather resistance comprehensive test device according to claim 1, characterized in that: The clamping assembly (3) also includes a bearing base plate (303), and the bearing base plate (303) is inclined. A fixing frame (302) is fixedly connected to the bottom of the bearing base plate (303), and a support rod (301) is fixedly connected to the bottom of the fixing frame (302). The first upright plate (320) and the second upright plate (310) are fixedly installed on the top of the bearing base plate (303).

3. The comprehensive weather resistance testing device for PVC cable materials according to claim 2, characterized in that: The top center of the planetary gear (201) is provided with a positioning hole (202), and a positioning block (203) is rotatably connected to the inner wall of the positioning hole (202). Multiple mounting plates (204) are fixedly connected to the outer surface of the positioning block (203). Each mounting plate (204) has a first rotating hole (208) and a second rotating hole (209) at one end.

4. The comprehensive weather resistance testing device for PVC cable materials according to claim 3, characterized in that: Each of the first rotating holes (208) has a first rotating shaft (210) rotatably connected to its inner wall. Each of the first toothed columns (212) is fixedly installed at the bottom of each of the first rotating shafts (210). Each of the first toothed columns (212) has a first limiting block (214) fixedly connected to its bottom. Each of the second rotating holes (209) has a second rotating shaft (211) rotatably connected to its inner wall. Each of the second toothed columns (213) is fixedly installed at the bottom of each of the second rotating shafts (211). Each of the support rods (301) is fixedly installed at the top of each of the second rotating shafts (211). Each of the second toothed columns (213) has a second limiting block (215) fixedly connected to its bottom. Each of the outer surfaces of the first limiting block (214) and the second limiting block (215) is movably connected with a connecting buckle (216).

5. The comprehensive weather resistance testing device for PVC cable materials according to claim 4, characterized in that: The bottom of the planetary gear (201) is fixedly connected to a support plate (206), and a servo motor (207) is provided on the outer surface of the support plate (206). The output shaft of the servo motor (207) is fixedly connected to the bottom of the positioning block (203), and multiple fixing rods (205) are fixedly connected to the bottom of the planetary gear (201).

6. The comprehensive weather resistance testing device for PVC cable materials according to claim 5, characterized in that: The outer protective assembly (1) includes a support chassis (101), and multiple fixing rods (205) are fixedly connected to the inner bottom surface of the support chassis (101). Two connecting plates (102) are symmetrically fixedly connected to the top of the support chassis (101). A test top plate (105) is fixedly connected to the top of the two connecting plates (102). Multiple ventilation holes (106) are opened on the top of the test top plate (105). Maintenance door panels (103) are rotatably connected to both sides of one of the connecting plates (102) through hinges. Door handles (104) are fixedly connected to the outer surfaces of the two maintenance door panels (103). A support frame (4) is fixedly connected to the outer surface of the support chassis (101) near the bottom.

7. The comprehensive weather resistance testing device for PVC cable materials according to claim 6, characterized in that: The inner wall of the test top plate (105) is equipped with a light module (5), a spray module (6), an oxidation module (7) and a blowing module (8). The light module (5) is used to simulate the aging of cable materials caused by sunlight, the spray module (6) is used to simulate the aging of cable materials caused by rain, the oxidation module (7) is used to simulate the aging of cable materials caused by ozone in the air, and the blowing module (8) is used to simulate the aging of cable materials caused by wind.

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