Cable tension testing device

Abstract

The utility model relates to the technical field of tension testing devices, and discloses a cable tension testing device which comprises a testing box internally provided with a cavity, a plurality of slidable fixing plates are arranged in the cavity, the lower ends of the fixing plates are bent to form fixing parts, and movable lifting plates are arranged on the upper end faces of the fixing plates. The lower end face of each lifting plate is provided with a detection assembly. Clamping blocks are arranged on the detection assembly and the fixing part, and clamping assemblies are arranged on the clamping blocks; a lifting assembly is further arranged in the cavity. A positioning assembly is further arranged on one side wall of the cavity. Through the above structure, the fixing plates are slidably installed in the cavity, the fixing plates are positioned through the positioning assembly, installation of the multiple fixing plates in the cavity is achieved, at the moment, the multiple cables are sequentially installed on the corresponding clamping blocks, then the multiple lifting plates are driven by the lifting assembly to synchronously move upwards, and then the multiple lifting plates are driven by the lifting assembly to move upwards. Therefore, the cable tension testing device is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of tensile testing devices, and more specifically, to a cable tensile testing device. Background Technology

[0002] A cable is a conductor made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. It is usually a cable that is like a rope made of several or several groups of conductors (at least two conductors in each group). After the cable is processed, it needs to be tested for tensile strength to determine whether the cable is qualified.

[0003] For example, a cable tensile testing device disclosed in patent CN218787958U, although using a switch to start a servo motor, a speed control button to adjust the servo motor's speed, and a tensile tester to test the cable tensile force in real time, with a rotating shaft driving a second bevel gear, which in turn drives a first bevel gear, which in turn drives a first screw, which in turn drives a slider to move along the X-axis, which in turn drives a fixed rod to move along the X-axis, and the fixed rod drives a tensile gauge to stretch the cable, is simple and quick to operate, improving the work efficiency of workers and increasing the yield rate of finished cable products; however, in actual use, this cable tensile testing device can only perform tensile testing on one cable at a time. When multiple cables need to be tested, they need to be tested sequentially, which is inconvenient and requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a cable tensile testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cable tensile testing device includes a test box with an internal cavity. The cavity has multiple slidable fixing plates. The lower ends of the fixing plates are bent to form fixing parts. The upper surfaces of the fixing plates are provided with movable lifting plates. The lower surfaces of the lifting plates are provided with detection components. The detection components are used to detect the tensile force of the cable.

[0007] Both the detection component and the fixing part are equipped with clamping blocks, and each clamping block is equipped with a clamping component, which is used to clamp and fix the corresponding end of the cable.

[0008] The cavity is also equipped with a lifting assembly, which is used to synchronously drive multiple lifting plates to rise and fall;

[0009] A positioning component is also provided on one side wall of the cavity, which is used to position multiple fixing plates inside the cavity.

[0010] Preferably, each clamping block is provided with a clamping groove;

[0011] The clamping assembly includes a screw mounted on the clamping block. One end of the screw is threaded into a clamping groove. A rotatable clamping plate is mounted on the screw in the clamping groove. Rotation of the screw drives the clamping plate to move, thereby clamping and fixing the cable.

[0012] Preferably, a connecting block is provided on the upper surface of the lifting plate, a lifting block is provided inside the cavity, and multiple connecting slots are provided on the side wall of the lifting block for the corresponding connecting block to be inserted.

[0013] The lifting assembly includes lead screws that are disposed opposite each other in the cavity and threaded through the lifting block. The two lead screws rotate synchronously to drive the lifting block to lift, thereby enabling the lifting block to drive multiple lifting plates to lift synchronously.

[0014] Preferably, a cavity is provided at the bottom of the cavity for the lower ends of both lead screws to extend into, and a sprocket is fitted on each lead screw located in the cavity, with a chain fitted between the two sprockets.

[0015] Preferably, each of the fixed plates has a fixed groove with the opening facing upwards, and a through groove is provided on the side wall opposite to the fixed groove to penetrate the fixed plate. Each of the lower end faces of the lifting plates has a lifting rod with one end inserted into the corresponding fixed groove, and a through rod with one end inserted into the corresponding through groove is provided on the side wall opposite to the lifting rod.

[0016] Preferably, each fixing plate is provided with a positioning groove that penetrates the fixing plate;

[0017] The positioning component includes a mounting box located on one side wall of the cavity. The mounting box has a mounting cavity, and the mounting cavity contains multiple rotatable mounting rods. One end of each mounting rod passes through a corresponding positioning slot, and each through end of the mounting rod is equipped with an intercepting plate. The rotation of the mounting rod drives the intercepting plate to be offset from or aligned with the positioning slot, thereby positioning or releasing the fixed plate. The mounting cavity also contains a rotating component for driving the multiple mounting rods to rotate synchronously.

[0018] Preferably, a limiting groove communicating with the mounting cavity is provided on the outer side wall of the mounting box, and gears are sleeved on the mounting rods;

[0019] The rotating component includes a rotating rod that is rotatable and located within the mounting cavity. A rack that meshes with multiple gears is threaded onto the rotating rod. A limiting rod with one end inserted into a limiting groove is provided on the rack. The rotation of the rotating rod drives the rack to move, and the movement of the rack drives multiple racks to rotate synchronously, thereby enabling multiple mounting rods to rotate synchronously.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model achieves the installation of multiple fixing plates in the cavity by sliding the fixing plates into the cavity and positioning them using a positioning component. Then, multiple cables are sequentially installed on the corresponding clamping blocks. Finally, the lifting component drives the multiple lifting plates to move upward synchronously, thereby enabling tensile testing of multiple cables. Compared with existing devices, this cable tensile testing device can perform tensile testing on multiple cables at once in actual use, making it more convenient to use.

[0022] 2. In this utility model, the limiting groove is set along the moving direction of the rack. The limiting groove limits the moving distance of the limiting rod, that is, the moving distance of the rack is limited. When the rack drives the limiting rod to move from one end of the limiting groove to the other end, the rack drives the intercepting plate on the mounting rod to rotate 90 degrees, so that the operator can drive the intercepting plate to rotate to a state that corresponds exactly with the positioning groove. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a cable tensile testing device according to the present invention.

[0024] Figure 2 This is a schematic diagram of the test box in this utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of the hollow cavity in this utility model.

[0026] Figure 4 This is an exploded view of the mounting box in this utility model.

[0027] Figure 5 This is a schematic diagram of the structure in which the lifting plate is installed on the fixed plate in this utility model.

[0028] The meanings of the labels in the diagram are as follows:

[0029] 100. Test box; 101. Cavity; 102. Slot; 110. Fixing plate; 111. Fixing part; 112. Positioning slot; 120. Lifting plate; 130. Clamping block; 140. Lifting block; 150. Lead screw; 160. Mounting box; 161. Intercepting plate; 170. Knob; 180. Tension sensor;

[0030] 201. Connecting groove; 211. Limiting groove; 220. Limiting rod;

[0031] 301. Cavity; 310. Sprocket; 320. Chain; 330. Motor;

[0032] 401. Mounting cavity; 410. Mounting rod; 411. Gear; 420. Rotating rod; 430. Rack;

[0033] 501. Clamping groove; 510. Screw; 511. Clamping plate; 512. Threaded ring; 520. Connecting block; 531. Through groove; 540. Lifting rod; 541. Through rod; 550. Locking block; 560. Horizontal plate. Detailed Implementation

[0034] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0035] The following is in conjunction with the appendix Figures 1-5 This embodiment will be described in further detail.

[0036] like Figure 1 As shown, a cable tensile testing device in this embodiment includes a test box 100 with an internal cavity 101. The cavity 101 has multiple slidable fixing plates 110. The lower ends of the fixing plates 110 are all bent to form fixing parts 111. The upper end surface of the fixing plates 110 is provided with movable lifting plates 120. The lower end surface of the lifting plates 120 is provided with detection components. The detection components are used to detect the tensile force of the cable.

[0037] Both the detection component and the fixing part 111 are provided with clamping blocks 130, and each clamping block 130 is provided with a clamping component, which is used to clamp and fix the corresponding end of the cable.

[0038] The cavity 101 is also equipped with a lifting assembly, which is used to synchronously drive multiple lifting plates 120 to lift.

[0039] A positioning component is also provided on one side wall of the cavity 101. The positioning component is used to position the multiple fixing plates 110 inside the cavity 101.

[0040] In this embodiment, the detection component includes a tension sensor 180 mounted on the lifting plate 120, a clamping block 130 mounted on the lifting plate 120, and a clamping block 130 fixedly mounted on the fixing part 111. When a cable tension test is required, the cable is placed inside the cavity 101. The clamping block 130 on the tension sensor 180 clamps and fixes the upper end of the cable through the clamping component, and the clamping block 130 on the fixing part 111 clamps and fixes the lower end of the cable through the clamping component, thus realizing the installation of the cable between the two clamping blocks 130. At this time, the lifting plate 120 is driven to move upward by the lifting component, so that the lifting plate 120 can move upward and perform a tension test on the cable through the clamping block 130. When the lifting plate 120 moves the clamping block 130 upward and pulls the cable off, the tension sensor 180 will measure the tension borne by the cable, thereby realizing the tension test of the cable.

[0041] When multiple cables need to be tested simultaneously, multiple fixing plates 110 are slidably installed in the cavity 101, and the positions of the fixing plates 110 are positioned by the positioning component to achieve installation of the fixing plates 110 in the cavity 101. At this time, multiple cables are sequentially installed on the corresponding clamping blocks 130, and then the lifting components drive multiple lifting plates 120 to move upward synchronously, so that multiple cables can be tested simultaneously. Compared with the existing ones, this cable tensile testing device can perform tensile testing on multiple cables at one time in actual use, which is convenient to use.

[0042] In actual use, the bottom wall of the cavity 101 is provided with multiple slots 102 with one side open. The cross-section of the slots 102 is T-shaped. The lower end face of the fixing part 111 is fixedly installed with a T-shaped block 550. By inserting the block 550 into the corresponding slot 102, the fixing plate 110 can be slidably installed in the cavity 101. When the positioning component releases the fixing plate 110, the fixing plate 110 can drive the lifting plate 120 to slide out of the cavity 101, thereby facilitating the maintenance of the tension sensor 180 on the lifting plate 120.

[0043] like Figure 1-5 As shown, in this embodiment, clamping slots 501 are provided on each clamping block 130;

[0044] The clamping assembly includes a screw 510 disposed on the clamping block 130. One end of the screw 510 is threaded into the clamping groove 501. The screw 510 in the clamping groove 501 is provided with a rotatable clamping plate 511. The rotation of the screw 510 is used to drive the clamping plate 511 to move, so as to clamp and fix the cable with the clamping plate 511.

[0045] In this embodiment, the clamping groove 501, screw 510, and clamping plate 511 are arranged so that the clamping plate 511 is rotatably mounted on the screw 510 through a bearing. The clamping plate 511 is square, and the side wall of the clamping plate 511 slides against the side wall of the clamping groove 501. When one end of the cable is located in the clamping groove 501, by rotating the screw 510, the screw 510 can drive the clamping plate 511 to move toward the cable, so that the clamping plate 511 clamps and fixes the cable in the clamping groove 501.

[0046] Each screw 510 has a screw ring 512 fixedly installed at one end, which facilitates the rotation of the screw 510.

[0047] In actual use, each clamping block 130 is fixedly installed with a horizontal plate 560. The horizontal plate 560 has multiple round holes. Before placing one end of the cable into the clamping groove 501, one end of the cable needs to pass through the corresponding round holes in sequence, and then be placed into the corresponding clamping groove 501. The cable is then clamped and fixed by the clamping plate 511, so that the clamping and fixing effect of one end of the cable on the clamping block 130 is better.

[0048] like Figure 1-3 As shown, in this embodiment, the upper end surface of the lifting plate 120 is provided with connecting blocks 520, the cavity 101 is provided with lifting blocks 140, and the side wall of the lifting block 140 is provided with multiple connecting slots 201 for the corresponding connecting blocks 520 to be inserted.

[0049] The lifting assembly includes lead screws 150 that are disposed in the cavity 101 and threaded through the lifting block 140. The two lead screws 150 rotate synchronously to drive the lifting block 140 to lift, thereby enabling the lifting block 140 to drive multiple lifting plates 120 to lift synchronously.

[0050] In this embodiment, by setting up the connecting block 520, the lifting block 140, the connecting groove 201 and the lead screw 150, the connecting block 520 is fixedly installed on the lifting plate 120, and the two ends of the lead screw 150 are rotatably installed in the cavity 101 through bearings. When the connecting block 520 is inserted into the corresponding connecting groove 201, the two lead screws 150 rotate synchronously. The rotation of the lead screw 150 can drive the lifting block 140 to move upward. The lifting block 140 can drive the corresponding lifting plate 120 to move upward through the connecting block 520, so that the lifting plate 120 drives the clamping block 130 to move upward, and the cable is subjected to tensile test.

[0051] The connecting groove 201 is open at one end, and both the connecting groove 201 and the connecting block 520 have T-shaped cross sections, so that the lifting block 140 can move the connecting block 520 upward when it moves upward, that is, the lifting plate 120 starts to move upward.

[0052] When the fixing plate 110 needs to be installed in the cavity 101, the lifting block 140 needs to be moved down to the lowest position. At this time, the locking block 550 on the fixing part 111 slides along the locking groove 102 into the cavity 101. At the same time, the connecting block 520 on the lifting plate 120 can be locked into the corresponding connecting groove 201, so as to realize the installation of the lifting plate 120 on the lifting block 140.

[0053] The cavity 101 has a cavity 301 at the bottom for the lower ends of two lead screws 150 to extend into. Each lead screw 150 in the cavity 301 is fixedly fitted with a sprocket 310, and a chain 320 is fitted between the two sprockets 310. When one of the two lead screws 150 rotates, the other lead screw 150 can be driven to rotate through the cooperation of the sprocket 310 and the chain 320, thereby achieving synchronous rotation of the two lead screws 150. A motor 330 is also fixedly installed on the bottom wall of the cavity 301. The output shaft of the motor 330 is fixedly connected to one of the lead screws 150, so that the motor 330 can drive the other lead screw 150 to rotate.

[0054] In actual use, the fixing plate 110 is provided with a fixing groove with the opening facing upwards. The side wall opposite the fixing groove is provided with a through groove 531 that penetrates the fixing plate 110. The through groove 531 is set along the height direction of the fixing plate 110. The lower end surface of the lifting plate 120 is fixedly installed with a lifting rod 540 with one end inserted into the corresponding fixing groove. The side wall opposite the lifting rod 540 is fixedly installed with a through rod 541 with one end inserted into the corresponding through groove 531. By inserting the lifting rod 540 into the fixing groove and then locking the through rod 541 on the lifting rod 540 into the through groove 531 to limit the lifting rod 540, the lifting rod 540 will not slide out of the fixing groove, thereby realizing the movable installation of the lifting plate 120 on the fixing plate 110.

[0055] like Figure 1-5 As shown, in this embodiment, each fixing plate 110 is provided with a positioning groove 112 that penetrates the fixing plate 110;

[0056] The positioning assembly includes a mounting box 160 disposed on one side wall of the cavity 101. The mounting box 160 has a mounting cavity 401. The mounting cavity 401 has multiple rotatable mounting rods 410. One end of the mounting rod 410 passes through the corresponding positioning groove 112. Each end of the mounting rod 410 is provided with an intercepting plate 161. The rotation of the mounting rod 410 is used to drive the intercepting plate 161 to be offset from or correspond to the positioning groove 112, thereby positioning or releasing the fixed plate 110. The mounting cavity 401 is also provided with a rotating component for driving the multiple mounting rods 410 to rotate synchronously.

[0057] In this embodiment, the arrangement of the positioning groove 112, mounting box 160, mounting cavity 401, mounting rod 410, intercepting plate 161, and rotating component allows the mounting box 160 to be fixedly mounted on the side wall of the mounting cavity 401, the mounting rod 410 to be rotatably mounted on the side wall of the mounting cavity 401 via a bearing, the intercepting plate 161 to be fixedly mounted on the mounting rod 410, and the positioning groove 112 to be vertically arranged. When the rotating component drives the mounting rod 410 to rotate, the mounting rod 410 drives the intercepting plate 161 to rotate. When the intercepting plate 161 and the positioning groove 112 are misaligned, the intercepting plate 161 intercepts the position of the fixed plate 110, thereby positioning the fixed plate 110.

[0058] In actual use, when the interceptor plate 161 on the rotating component drive mounting rod 410 corresponds to the positioning groove 112, the positioning of the fixing plate 110 is released. At this time, by driving the fixing plate 110 to slide towards the opening of the cavity 101, the fixing plate 110 can pass through the interceptor plate 161, thus realizing the fixing plate 110 sliding out of the cavity 101.

[0059] like Figure 1-4 As shown, in this embodiment, a limiting groove 211 communicating with the mounting cavity 401 is provided on the outer side wall of the mounting box 160, and gears 411 are sleeved on the mounting rods 410.

[0060] The rotating component includes a rotating rod 420 that is rotatable and located within the mounting cavity 401. A rack 430 that meshes with multiple gears 411 is threaded onto the rotating rod 420. A limiting rod 220 with one end inserted into a limiting groove 211 is provided on the rack 430. The rotation of the rotating rod 420 drives the rack 430 to move. The movement of the rack 430 drives multiple racks 430 to rotate synchronously, thereby enabling multiple mounting rods 410 to rotate synchronously.

[0061] In this embodiment, the setting of limiting groove 211, gear 411, rotating rod 420, rack 430 and limiting rod 220 enables the gear 411 to be fixedly installed on the mounting rod 410, the rotating rod 420 to be rotatably installed in the mounting cavity 401 through the bearing, and the limiting rod 220 to be fixedly installed on the rack 430. One end of the limiting rod 220 is inserted into the limiting groove 211 to limit the rack 430. When the rotating rod 420 rotates, it can drive the rack 430 to move. The movement of the rack 430 can simultaneously drive multiple gears 411 to rotate. The rotation of the gears 411 drives the corresponding mounting rod 410 to rotate, that is, the interceptor plate 161 on the mounting rod 410 to rotate, so that the interceptor plate 161 is offset from or corresponds to the positioning groove 112.

[0062] The limiting groove 211 is set along the moving direction of the rack 430. The limiting groove 211 limits the moving distance of the limiting rod 220, that is, the moving distance of the rack 430 is limited. When the rack 430 drives the limiting rod 220 to move from one end of the limiting groove 211 to the other end, the rack 430 drives the interceptor plate 161 on the mounting rod 410 to rotate to a state that is offset from or corresponds to the positioning groove 112, so as to facilitate the use of the staff.

[0063] In actual use, one end of the rotating rod 420 extends through the outside of the test box 100, and a knob 170 is fixedly installed on the extended end of the rotating rod 420, so that the rotating rod 420 can be easily driven to rotate.

[0064] In actual use, the cable is first passed through the corresponding round holes and placed in the clamping groove 501. Then, the screw 510 is rotated by the screw ring 512, so that the clamping plate 511 clamps and fixes the cable in the clamping groove 501. At this time, the lead screw 150 is rotated by the motor 330. The lead screw 150 rotates synchronously through the cooperation of the sprocket 310 and the chain 320. The synchronous rotation of the two lead screws 150 drives the lifting block 140 to move upward. The upward movement of the lifting block 140 drives the lifting plate 120 to move upward through the connecting block 520. At this time, the tension sensor 180 on the lifting plate 120 measures the tension of the cable, thereby realizing the tension test of the cable.

[0065] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A cable tension testing device comprising a testing box (100) with a cavity (101) therein, characterized in that: A plurality of fixed plates (110) are arranged in the cavity (101) and can slide, the lower end of each fixed plate (110) is bent to form a fixed part (111), the upper end surface of each fixed plate (110) is provided with a movable lifting plate (120), the lower end surface of each lifting plate (120) is provided with a detection assembly, and the detection assembly is used for detecting the tension of the cable; The detection assembly and the fixed part (111) are provided with clamping blocks (130), the clamping blocks (130) are provided with clamping assemblies, and the clamping assemblies are used for clamping and fixing the corresponding end of the cable; The cavity (101) is also provided with a lifting assembly, and the lifting assembly is used for synchronously driving the plurality of lifting plates (120) to lift; A positioning assembly is further arranged on one side wall of the cavity (101), and the positioning assembly is used for positioning the plurality of fixed plates (110) in the cavity (101).

2. A cable tension testing device according to claim 1, wherein: The clamping blocks (130) are provided with clamping grooves (501); The clamping assembly comprises a screw rod (510) arranged on the clamping block (130), one end of the screw rod (510) is screwed into the clamping groove (501), the screw rod (510) in the clamping groove (501) is provided with a clamping plate (511) which can rotate, and the screw rod (510) is rotated to drive the clamping plate (511) to move, so that the clamping plate (511) clamps and fixes the cable.

3. A cable tension testing device as claimed in claim 1, wherein: The upper end surface of each lifting plate (120) is provided with a connecting block (520), and the cavity (101) is provided with a lifting block (140), a plurality of connecting grooves (201) for clamping the corresponding connecting blocks (520) are arranged on the side wall of the lifting block (140); The lifting assembly comprises a screw rod (150) which is arranged opposite to the cavity (101) and is screwed through the lifting block (140), and the two screw rods (150) are synchronously rotated to drive the lifting block (140) to lift, so that the lifting block (140) drives the plurality of lifting plates (120) to synchronously lift.

4. A cable tension testing device according to claim 3, wherein: A cavity (301) is arranged below the cavity (101) and the lower ends of the two screw rods (150) are inserted into the cavity (301), a sprocket (310) is arranged on each screw rod (150) in the cavity (301), and a chain (320) is arranged between the two sprockets (310).

5. A cable tension testing device as claimed in claim 3, wherein: Each fixed plate (110) is provided with a fixed groove with an opening upward, a through groove (531) penetrating through the fixed plate (110) is arranged on the opposite side wall of the fixed groove, the lower end surface of each lifting plate (120) is provided with a lifting rod (540) which is opposite and has one end inserted into the corresponding fixed groove, and the opposite side wall of the lifting rod (540) is provided with a penetrating rod (541) which has one end inserted into the corresponding through groove (531).

6. A cable tension testing device according to claim 5, wherein: Each fixed plate (110) is provided with a positioning groove (112) penetrating through the fixed plate (110). The positioning assembly comprises a mounting box (160) arranged on one side wall of the cavity (101), a mounting cavity (401) is formed in the mounting box (160), a plurality of mounting rods (410) are arranged in the mounting cavity (401) and can rotate, one end of the mounting rod (410) penetrates through the corresponding positioning slot (112), the penetrating end of the mounting rod (410) is provided with an intercepting plate (161), the mounting rod (410) rotates to drive the intercepting plate (161) to be staggered with or correspond to the positioning slot (112), so that the positioning or de-positioning of the fixing plate (110) is realized, and a rotating piece for driving the plurality of mounting rods (410) to rotate synchronously is further arranged in the mounting cavity (401).

7. A cable tension testing device as claimed in claim 6, wherein: A limiting slot (211) communicating with the mounting cavity (401) is formed in the outer side wall of the mounting box (160), and a gear (411) is sleeved on the mounting rod (410); The rotating piece comprises a rotating rod (420) arranged in the mounting cavity (401) and capable of rotating, a rack (430) engaged with the plurality of gears (411) is threadedly sleeved on the rotating rod (420), the rack (430) is provided with a limiting rod (220) inserted into the limiting slot (211), the rotating rod (420) rotates to drive the rack (430) to move, the rack (430) moves to drive the plurality of racks (430) to rotate synchronously, and the plurality of mounting rods (410) rotate synchronously.

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