A cable sample high-altitude impact test device

Abstract

The application relates to a cable sample high-altitude impact test device, which comprises a main body and a placing block, the placing block is arranged on the main body, further comprises an impact mechanism, the impact mechanism comprises a guide sleeve, an impact block and a limiting assembly, the guide sleeve is arranged on the main body and located above the placing block; the impact block is slidingly arranged in the guide sleeve; and the limiting assembly is arranged on the guide sleeve and limits the impact block in the guide sleeve. The application has the effect of reducing safety hazards.

Description

Technical Field

[0001] This application relates to the technical field of cable testing, and in particular to a high-altitude impact testing device for cable samples. Background Technology

[0002] The impact resistance and reliability of cables are tested by subjecting them to an impact test through a free-fall motion from a high-altitude impactor.

[0003] Currently, Chinese patent CN223021801U discloses a cable mechanical shock resistance testing machine, which includes a servo motor reducer module, steel wire rope, linear guide rail, electric magnet, counterweight mounting plate slide, counterweight block, test cable placement slider, laser displacement sensor, electric cylinder, test cable sample and withstand voltage tester. It can be matched with hammers of various weights and various free fall heights to meet the different mechanical shock resistance requirements in the cable R&D process, thereby providing more reliable data for cable design and manufacturing.

[0004] The counterweight is mounted on the counterweight mounting plate slide, which is fixed in position by an electromagnet, thus suspending the counterweight and the counterweight mounting plate slide. When the cable is placed on the cable placement slider, if the electromagnet is suddenly de-energized, the counterweight mounting plate slide and the counterweight will suddenly fall, creating a significant safety hazard. Utility Model Content

[0005] To reduce safety hazards, this application provides a high-altitude impact testing device for cable samples.

[0006] This application provides a high-altitude impact testing device for cable samples, which adopts the following technical solution: A high-altitude impact testing device for cable samples includes a main body and a placement block, the placement block being disposed on the main body. It also includes an impact mechanism, which comprises a guide sleeve, an impact block, and a limiting component. The guide sleeve is disposed on the main body and located above the placement block; the impact block is slidably disposed within the guide sleeve; and the limiting component is disposed on the guide sleeve and limits the impact block within the guide sleeve.

[0007] By adopting the above technical solution, before the cable is subjected to impact testing, a portion of the impact block is located inside the guide sleeve, and the impact block is constrained on the guide sleeve by the limiting component. When the impact block is required to test the cable, the cable is first placed on the placement block, and then the limiting mechanism is manually separated from the impact block. The impact block will then test the cable under the action of gravity. Therefore, the limiting component needs to be manually adjusted to separate from the impact block, which can reduce the movement of the impact block when it is not needed, thereby reducing safety hazards.

[0008] Optionally, the limiting component includes a fixed block, a movable block, a limiting block, and an adjusting component. The fixed block is disposed at the end of the guide sleeve away from the placement block, and the movable block is slidably disposed on the fixed block via the adjusting component. A limiting groove is formed at the end of the impact block away from the placement block. Two limiting blocks are provided, both of which are disposed on the movable block, and the ends of the two limiting blocks that are close to each other abut against the sidewall of the limiting groove.

[0009] By adopting the above technical solution, when the impact block does not impact the cable, both limiting blocks abut against the sidewall of the limiting groove on the impact block, and the two limiting blocks will support and limit the impact block; when the impact block needs to impact the cable, the adjusting component drives the moving block to move, and the moving block drives the limiting block to move, so that the limiting block moves horizontally relative to the impact block; when the limiting block separates from the impact block, the impact block will move in the guide sleeve under the action of gravity to impact the cable.

[0010] Optionally, the adjusting assembly includes a guide rod, a push-pull rod, a limiting hook, and a spring. The guide rod is disposed on the fixed block, and the moving block is slidably disposed on the guide rod. A first through hole is provided on the fixed block. The push-pull rod is disposed on the moving block, and one end of the push-pull rod away from the moving block passes through the first through hole. The limiting hook is disposed on the end of the push-pull rod away from the moving block. One end of the spring is connected to the moving block, and the other end is connected to the fixed block.

[0011] By adopting the above technical solution, when the limiting block abuts against the limiting groove on the impact block to support and limit the impact block, the limiting hook abuts against the fixed block; when it is necessary to separate the limiting block from the impact block, the limiting hook is pulled, the limiting hook drives the push-pull block to move, the push-pull block drives the moving block to move, and the moving block drives the limiting block to move, so that the limiting block moves relative to the impact block, thereby separating the limiting block from the limiting groove on the impact block. In this way, the impact block will move in the guide sleeve under the action of gravity, realizing the impact test on the cable.

[0012] Optionally, the movable block includes a first connecting block, a second connecting block, and a third connecting block. A second connecting block is provided at each end of the first connecting block, and a third connecting block is provided at the side of each of the two second connecting blocks that is away from the first connecting block and close to each other. The two third connecting blocks, the two second connecting blocks, and the first connecting block form a defined area. The two defined blocks are respectively provided on the two second connecting blocks, and an inlet and outlet communicating with the defined area are formed between the two third connecting blocks.

[0013] Optionally, the second connecting block is provided with a rotating shaft, the limiting block is disposed on the rotating shaft, and the limiting blocks are provided with a chamfer at one end close to each other and on the side close to the placement block.

[0014] Optionally, a lifting assembly is provided on the fixed block. The lifting assembly includes a winding reel and a first connecting rope. The winding reel is rotatably mounted on the fixed block. One end of the first connecting rope is connected to the winding reel and the other end is connected to the impact block.

[0015] By adopting the above technical solution, after the impact block impacts the cable, the take-up reel is rotated, and the take-up reel will wind up the first connecting rope. The first connecting rope will drive the impact block to move away from the placement block, so that the limiting block can re-limit the impact block.

[0016] Optionally, the fixing block includes a first assembly block, a second assembly block, a third assembly block, and a fixing member. The second assembly block is provided at both ends of the first assembly block. The third assembly block is connected to the first assembly block through the fixing member. The first assembly block has a first arc-shaped groove, and the third assembly block has a second arc-shaped groove. The sidewalls of the first arc-shaped groove and the sidewalls of the second arc-shaped groove abut against the guide sleeve. The moving block is provided on the second assembly block through the adjusting component.

[0017] By adopting the above technical solution, the first arc-shaped groove on the first assembly block and the second arc-shaped groove on the third assembly block are both pressed against the side wall of the guide sleeve; then the assembly connects the third assembly block to the first assembly block, so that the first assembly block and the third assembly block can clamp the guide sleeve and fix the first assembly block and the third assembly block to the guide sleeve. This achieves a detachable connection between the fixing block and the guide sleeve. As needed, a suitable fixing block can be selected to connect to the guide sleeve to improve applicability.

[0018] Optionally, the main body is provided with an installation mechanism connected to the guide sleeve. The installation mechanism includes a first installation block, a second installation block, and an installation component. The first installation block is disposed on the main body, and the second installation block is disposed on the first installation block through the installation component. The first installation block has a third arc-shaped groove, and the second installation block has a fourth arc-shaped groove. The sidewalls of the third arc-shaped groove and the sidewalls of the fourth arc-shaped groove abut against the guide sleeve.

[0019] By adopting the above technical solution, the side wall of the third arc-shaped groove on the first mounting block is first pressed against the side wall of the guide sleeve, and then the side wall of the fourth arc-shaped groove on the second mounting block is pressed against the side wall of the guide sleeve; then the mounting component connects the second mounting block to the first mounting block, so that the first mounting block and the second mounting block clamp the guide sleeve, thereby fixing the guide sleeve to the main body; the set mounting mechanism can realize the installation of the guide sleeve on the main body, and the guide sleeve of appropriate length can be selected as needed, thus improving applicability.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. The limiting component can only be separated from the impact block by manual adjustment, which reduces the possibility of the impact block moving when it does not need to move, thereby reducing safety hazards; 2. The installation mechanism allows the guide sleeve to be installed on the main body, and the guide sleeve of appropriate length can be selected as needed, thus improving applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the high-altitude impact testing device for cable samples in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the adjustment component in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the rotating shaft in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the centering adjustment mechanism in Embodiment 2 of this application; Figure 5 This is a schematic diagram of the structure of the adjustment component in Embodiment 2 of this application.

[0022] Reference numerals: 11. Main body; 12. Placement block; 2. Impact mechanism; 21. Guide sleeve; 211. First annular groove; 212. Second annular groove; 22. Impact block; 221. Limiting groove; 3. Limiting component; 31. Fixing block; 311. First assembly block; 312. Second assembly block; 313. Third assembly block; 314. Fixing element; 32. Moving block; 321. First connecting block; 322. Second connecting block; 323. Third connecting block; 33. Limiting block; 331. Chamfer; 34. Adjustment component; 341. Guide rod; 342. 1. Push-pull rod; 343. Limiting hook; 344. Spring; 345. Second connecting rope; 35. Rotating shaft; 4. Lifting assembly; 41. Reel; 42. First connecting rope; 43. Actuating block; 5. Mounting mechanism; 51. First mounting block; 52. Second mounting block; 53. Mounting component; 6. Stabilizing assembly; 61. Stabilizing block; 62. Stabilizing bolt; 7. Centering adjustment mechanism; 71. Adjusting block; 72. Centering block; 73. Adjusting assembly; 731. Two-way lead screw; 732. Adjusting shaft; 733. First bevel gear; 734. Second bevel gear. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a high-altitude impact testing device for cable samples.

[0025] Example 1 refer to Figure 1 A high-altitude impact test device for cable samples includes a main body 11, on which a placement block 12 is fixedly connected; a stamping mechanism is provided on the main body 11 above the placement block 12.

[0026] refer to Figure 1 The main body 11 is provided with a stabilizing component 6, which includes a stabilizing block 61. The stabilizing block 61 has a second through hole, and the main body 11 has a first threaded hole. The stabilizing block 61 is provided with a stabilizing bolt 62, which passes through the second through hole on the stabilizing block 61 and is threadedly connected to the first threaded hole on the main body 11.

[0027] Place the cable to be tested on the placement block 12. After the position of the cable is determined, make the stabilizing block 61 press against the cable. Then make the stabilizing bolt 62 pass through the second through hole on the stabilizing block 61 and thread it into the first threaded hole on the main body 11. This can reduce the phenomenon of the cable moving on the placement block 12.

[0028] refer to Figure 1 and Figure 2The stamping mechanism includes a guide sleeve 21, which is located directly above the placement block 12. A second annular groove 212 is formed on the guide sleeve 21. A mounting mechanism 5 is provided on the main body 11. The mounting mechanism 5 includes a first mounting block 51 fixedly connected to the main body 11. A third arc-shaped groove is formed at the end of the first mounting block 51 away from the main body 11. This end of the first mounting block 51 is located within the second annular groove 212 of the guide sleeve 21, and the sidewall of the third arc-shaped groove on the first mounting block 51 abuts against the sidewall of the second annular groove 212. A second mounting block 52 is provided on the first mounting block 51, and a third through-hole is formed on the second mounting block 52. The first mounting block 51 has a second threaded hole, and the second mounting block 52 has a mounting component 53, which includes a mounting bolt. The mounting bolt passes through a third through hole on the second mounting block 52 and is threadedly connected to the second threaded hole on the first mounting block 51. The second mounting block 52 has a fourth arc-shaped groove at one end near the first mounting block 51. The end of the second mounting block 52 near the first mounting block 51 is located in the second annular groove 212 of the guide sleeve 21, and the side wall of the fourth arc-shaped groove on the second mounting block 52 abuts against the side wall of the second annular groove 212.

[0029] First, the side wall of the third arc-shaped groove on the first mounting block 51 is pressed against the side wall of the second annular groove 212 on the guide sleeve 21. Then, the side wall of the fourth arc-shaped groove on the second mounting block 52 is pressed against the side wall of the second annular groove 212 on the guide sleeve 21, and the second mounting block 52 will abut against the first mounting block 51. Then, the mounting bolt is threaded through the third through hole on the second mounting block 52 and threadedly connected to the second threaded hole on the first mounting block 51, so that the first mounting block 51 and the second mounting block 52 clamp the guide sleeve 21, thereby fixing the guide sleeve 21 on the main body 11.

[0030] refer to Figure 1 and Figure 2 The guide sleeve 21 has a first annular groove 211 at the end away from the placement block 12. A fixing block 31 is provided on the guide sleeve 21. The fixing block 31 includes a first assembly block 311, which has a first arc-shaped groove. The sidewall of the first arc-shaped groove abuts against the sidewall of the first annular groove 211 on the guide sleeve 21. A third assembly block 313 is provided on one side of the first assembly block 311. The third assembly block 313 has a second arc-shaped groove that abuts against the sidewall of the first annular groove 211 on the guide sleeve 21. A fourth through hole is provided on the third assembly block 313. A third threaded hole is provided on the first assembly block 311. An assembly component, including an assembly bolt, is provided on the third assembly block 313. The assembly bolt passes through the fourth through hole on the third assembly block 313 and is threadedly connected to the third threaded hole on the first assembly block 311. A second assembly block 312 is fixedly connected to both ends of the first assembly block 311.

[0031] The first arc groove on the first assembly block 311 and the second arc groove on the third assembly block 313 are both pressed against the side wall of the first annular groove 211 on the guide sleeve 21, and the third assembly block 313 abuts against the first assembly block 311; then the assembly bolt is threaded through the fourth through hole on the third assembly block 313 and threadedly connected to the third threaded hole on the first assembly block 311.

[0032] refer to Figure 2 An impact block 22 is slidably connected to the guide sleeve 21. A lifting component 4 is provided on one of the second assembly blocks 312. The lifting component 4 includes a take-up reel 41 rotatably connected to the second assembly block 312. A first connecting rope 42 is connected to the take-up reel 41. One end of the first connecting rope 42 and the take-up reel 41 are connected to the end of the impact block 22 away from the placement block 12. A toggle block 43 is fixedly connected to the take-up reel 41.

[0033] Rotating the actuating block 43 causes the winding reel 41 to rotate, which in turn winds up the first connecting rope 42. The first connecting rope 42 then moves the impact block 22, causing it to move to the end of the guide sleeve 21 away from the placement block 12.

[0034] refer to Figure 2 and Figure 3 The second assembly block 312 is provided with an adjustment component 34, which includes two guide rods 341, and the two ends of each guide rod 341 are respectively connected to the two second assembly blocks 312.

[0035] A movable block 32 is slidably connected to the guide rod 341. The movable block 32 includes a first connecting block 321. A second connecting block 322 is integrally provided at both ends of the first connecting block 321. A third connecting block 323 is integrally provided at the ends of the two second connecting blocks 322 that are away from the first connecting block 321 and close to each other. A sliding hole is provided on the second connecting block 322 for the guide rod 341 to pass through, so that the second connecting block 322 and the guide rod 341 are slidably positioned. The two third connecting blocks 323, the two second connecting blocks 322 and the first connecting block 321 form a defined area. An inlet and outlet communicating with the defined area are formed between the two third connecting blocks 323. The length of the inlet and outlet is greater than the diameter of the impact block 22, that is, the impact block 22 can enter or move out of the defined area through the inlet and outlet.

[0036] Each of the two second connecting blocks 322 has a limiting groove communicating with the defined area. Each of the two second connecting blocks 322 also has a movable groove communicating with the defined area on its adjacent side, and the movable groove is also communicating with the limiting groove. Each second connecting block 322 is rotatably connected to a rotating shaft 35, and each rotating shaft 35 is fixedly connected to a limiting block 33. A portion of the limiting block 33 is located within the limiting groove. The distance between the adjacent ends of the two limiting blocks 33 is less than the diameter of the impact block 22. The impact block 22 has an annular limiting groove 221, allowing the adjacent ends of the two limiting blocks 33 to be located within the limiting groove 221. A chamfer 331 is provided on the adjacent end of the two limiting blocks 33 and on the side closest to the placement block 12.

[0037] A first through hole is provided on the second assembly block 312 near the first connecting block 321. A push-pull rod 342 is fixedly connected to the first connecting block 321. One end of the push-pull rod 342 away from the first connecting block 321 passes through the first through hole on the second assembly block 312. A limiting hook 343 is fixedly connected to the other end of the push-pull rod 342 away from the first connecting block 321. A second connecting rope 345 is connected to the limiting hook 343. A spring 344 is sleeved on the push-pull rod 342. One end of the spring 344 is connected to the first connecting block 321 and the other end is connected to the second assembly block 312.

[0038] Before the impact block 22 impacts the cable, both limiting blocks 33 are arranged parallel to the second connecting block 322, and the ends of the two limiting blocks 33 that are close to each other abut against the side wall of the limiting groove 221 on the impact block 22. At this time, the limiting blocks 33 are exactly in the limiting groove. Because the weight of the stamping block will exert a downward force on the limiting blocks 33, but under the action of the side wall of the limiting groove on the second connecting block 322, the limiting blocks 33 will not rotate. In this way, the two limiting blocks 33 will support the impact block 22. At this time, the end of the impact block 22 away from the first connecting rope 42, that is, the end of the impact block 22 close to the placement block 12, is still in the guide sleeve.

[0039] When the impact block 22 needs to impact the cable, the second connecting rope 345 is pulled, which drives the limiting hook 343 to move. The limiting hook 343 drives the push-pull rod 342 to move, and the spring 344 is compressed. The push-pull rod 342 drives the first connecting block 321 to move, which in turn drives the second connecting block 322 to move. The rotating shaft 35 on the second connecting block 322 drives the limiting block 33 to move, causing the limiting block 33 to separate from the limiting groove 221 on the impact block 22. The impact block 22, located within the limited area, will move out of the limited area through the inlet and outlet. Under the action of gravity, the impact block 22 will move along the guide sleeve towards the placement block 12, causing the impact block 22 to impact the cable located on the placement block 12.

[0040] When the impact block 22 moves out of the restricted area through the inlet and outlet, the second connecting rope 345 is released, and the force of the spring 344 restoring its elastic deformation drives the first connecting block 321, causing the limiting hook 343 to abut against the second assembly block 312.

[0041] After the test is completed, rotate the actuating block 43, causing the first connecting rope 42 on the take-up reel 41 to move the impact block 22 away from the placement block 12. The end of the impact block 22 away from the placement block 12 abuts against the chamfer 331 on the two limiting blocks 33. The impact block 22 will push the two limiting blocks 33 to rotate, increasing the distance between the two limiting blocks 33. This allows the end of the impact block 22 near the first connecting rope 42 to pass between the two second limiting blocks 33, and a portion of the limiting blocks 33 will rotate into the movable slot. The length between the limiting blocks 33 within the limited area is greater than that of the limiting blocks 33 outside the second connecting block 322. The length is such that the limiting block 33 is bounded by the rotation axis 35. The weight of the limiting block 33 closer to the limiting area is greater than that of the limiting block 33 farther away from the limiting area. Thus, when the first connecting block 321 drives the impact block 22 to move, and the limiting groove 221 on the impact block 22 corresponds to the limiting block 33, the limiting block 33 between the rotation axis 35 and the impact block 22 will become horizontal under the action of gravity. Then, the impact block 22 will move towards the placement block 12 under the action of gravity. The horizontal limiting block 33 will then abut against the side wall of the limiting groove 221 on the impact block 22, so that the two limiting blocks 33 support the impact block 22.

[0042] The implementation principle of Embodiment 1 of this application is as follows: Initially, two limiting blocks 33 support the impact block 22, and then the cable to be tested is placed on the placement block 12, with a portion of the cable located directly below the guide sleeve; after the cable position is adjusted, the stabilizing block 61 is pressed against the cable to be tested, and then the stabilizing bolt 62 is threadedly connected to the first threaded hole on the main body 11.

[0043] Then the operator pulls the second connecting rope 345, so that the two limiting blocks 33 no longer support the impact block 22. The impact block 22 moves out of the limiting area through the inlet and outlet, and the spring 344 is compressed. After the impact block 22 moves out of the limiting area, the impact block 22 will impact the cable located on the placement block 12 under the action of gravity.

[0044] When the impact block 22 moves out of the defined area, the second connecting rope 345 is released, and the force of the spring 344 restoring its elastic deformation will drive the first connecting block 321 back to its initial position, that is, the position where the limiting block 33 can limit the impact block 22.

[0045] After the impact block 22 impacts the cable, rotate the toggle block 43 so that the first connecting block 321 drives the impact block 22 to move away from the placement block 12. Then, the two limiting blocks 33 re-limit the impact block 22, so that the impact block 22 is in the same position before each impact.

[0046] Example 2 refer to Figure 4 and Figure 5 The difference from Embodiment 1 is that the main body 11 is provided with a centering adjustment mechanism 7, and a sliding groove is provided on the main body 11. Two adjustment blocks 71 are slidably connected in the sliding groove, and the placement block 12 is located between the two adjustment blocks 71. A centering block 72 is fixedly connected to the end of each of the two adjustment blocks 71 that is close to each other. An adjustment assembly 73 is provided on the main body 11. The adjustment assembly 73 includes a bidirectional lead screw 731 rotatably connected in the sliding groove. The bidirectional lead screw 731 passes through the two adjustment blocks 71 and is threadedly connected to the two adjustment blocks 71. An adjustment shaft 732 is rotatably connected to the main body 11. A first bevel gear 733 is keyed to the adjustment shaft 732, and a second bevel gear 734 that meshes with the first bevel gear 733 is keyed to the bidirectional lead screw 731.

[0047] Once the cable is positioned on the placement block 12, rotate the adjustment shaft 732. The adjustment shaft 732 drives the first bevel gear 733 to rotate, which in turn drives the second bevel gear 734 to rotate. The second bevel gear 734 then drives the bidirectional lead screw 731 to rotate, which in turn drives the two adjustment blocks 71 to move in opposite directions. The centering blocks 72 on the two adjustment blocks 71 will then move in opposite directions. When both centering blocks 72 are in contact with the cable, the cable is adjusted.

[0048] In this embodiment, multiple centering adjustment mechanisms 7 are provided. Under the action of multiple centering adjustment mechanisms 7, the cable to be tested is positioned directly below the guide sleeve more quickly, reducing cable adjustment time and thus improving efficiency.

[0049] After the cable position is adjusted, make the stabilizing block 61 contact the cable.

[0050] The implementation principle of the high-altitude impact testing device for cable samples in this application embodiment is as follows: The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-altitude impact testing device for cable samples, comprising a main body (11) and a placement block (12), wherein the placement block (12) is disposed on the main body (11), characterized in that, It also includes an impact mechanism (2), which includes a guide sleeve (21), an impact block (22) and a limiting component (3). The guide sleeve (21) is disposed on the main body (11) and located above the placement block (12). The impact block (22) is slidably disposed within the guide sleeve (21). The limiting component (3) is disposed on the guide sleeve (21) and limits the impact block (22) within the guide sleeve (21).

2. The high-altitude impact testing device for cable samples according to claim 1, characterized in that, The limiting component (3) includes a fixed block (31), a movable block (32), a limiting block (33), and an adjusting component (34). The fixed block (31) is disposed at one end of the guide sleeve (21) away from the placement block (12). The movable block (32) is slidably disposed on the fixed block (31) through the adjusting component (34). The impact block (22) has a limiting groove (221) at one end away from the placement block (12). There are two limiting blocks (33), both of which are disposed on the movable block (32). The ends of the two limiting blocks (33) that are close to each other abut against the side wall of the limiting groove (221).

3. The high-altitude impact testing device for cable samples according to claim 2, characterized in that, The adjustment assembly (34) includes a guide rod (341), a push-pull rod (342), a limiting hook (343), and a spring (344). The guide rod (341) is disposed on the fixed block (31), and the moving block (32) is slidably disposed on the guide rod (341). A first through hole is provided on the fixed block (31), and the push-pull rod (342) is disposed on the moving block (32). One end of the push-pull rod (342) away from the moving block (32) passes through the first through hole. The limiting hook (343) is disposed on the end of the push-pull rod (342) away from the moving block (32). One end of the spring (344) is connected to the moving block (32), and the other end is connected to the fixed block (31).

4. The high-altitude impact testing device for cable samples according to claim 2, characterized in that, The movable block (32) includes a first connecting block (321), a second connecting block (322), and a third connecting block (323). A second connecting block (322) is provided at both ends of the first connecting block (321). A third connecting block (323) is provided on the side of the two second connecting blocks (322) that is away from the first connecting block (321) and close to each other. The two third connecting blocks (323), the two second connecting blocks (322), and the first connecting block (321) form a defined area. Two defined blocks (33) are respectively provided on the two second connecting blocks (322). An inlet and outlet communicating with the defined area are formed between the two third connecting blocks (323).

5. The high-altitude impact testing device for cable samples according to claim 4, characterized in that, The second connecting block (322) is provided with a rotating shaft (35), the limiting block (33) is provided on the rotating shaft (35), and the limiting block (33) has a chamfer (331) on one end close to each other and on the side close to the placement block (12).

6. The high-altitude impact testing device for cable samples according to claim 2, characterized in that, A lifting component (4) is provided on the fixed block (31). The lifting component (4) includes a winding reel (41) and a first connecting rope (42). The winding reel (41) is rotatably mounted on the fixed block (31). One end of the first connecting rope (42) is connected to the winding reel (41) and the other end is connected to the impact block (22).

7. The high-altitude impact testing device for cable samples according to claim 2, characterized in that, The fixing block (31) includes a first assembly block (311), a second assembly block (312), a third assembly block (313), and a fixing member (314). The second assembly block (312) is provided at both ends of the first assembly block (311). The third assembly block (313) is connected to the first assembly block (311) through the fixing member (314). The first assembly block (311) has a first arc-shaped groove, and the third assembly block (313) has a second arc-shaped groove. The sidewalls of the first arc-shaped groove and the sidewalls of the second arc-shaped groove abut against the guide sleeve (21). The moving block (32) is provided on the second assembly block (312) through the adjusting component (34).

8. The high-altitude impact testing device for cable samples according to claim 1, characterized in that, The main body (11) is provided with an installation mechanism (5) connected to the guide sleeve (21). The installation mechanism (5) includes a first installation block (51), a second installation block (52), and an installation component (53). The first installation block (51) is disposed on the main body (11), and the second installation block (52) is disposed on the first installation block (51) through the installation component (53). The first installation block (51) is provided with a third arc-shaped groove, and the second installation block (52) is provided with a fourth arc-shaped groove. The sidewalls of the third arc-shaped groove and the sidewalls of the fourth arc-shaped groove are both abutted against the guide sleeve (21).

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