Rubber sealing strip tension detection device

Abstract

The invention relates to the technical field of tension detection, and discloses a rubber sealing strip tension detection device which comprises a containing groove, stretching guide rails are arranged on the rear sides of the two ends of the containing groove, each stretching guide rail is slidably connected with a fixed clamping block, and a stretching driving part is arranged between the bottoms of the two fixed clamping blocks; a pushing assembly is arranged on the front side of the containing groove, a pressure balance part is fixedly installed on the pushing assembly, and movable clamping blocks are fixedly installed at the two ends of the pressure balance part. Along with the continuous backward movement of the vertical plate, a first spring is compressed, the pressure of a first piston on hydraulic oil in a first hydraulic cylinder is increased, the hydraulic pressure in a second hydraulic cylinder is gradually increased, and then the clamping force of a movable clamping block and a fixed clamping block on the end part of the sealing strip is gradually increased; and through the communication effect of the hydraulic cylinders I, the flow guide pipes and the hydraulic cylinders II, the internal hydraulic pressures of the two hydraulic cylinders II are equal, so that the purpose of equal clamping force applied to the two ends of the sealing strip is achieved.

Description

Technical Field

[0001] This invention relates to the field of tensile testing technology, specifically to a tensile testing device for rubber sealing strips. Background Technology

[0002] Sealing strips are strip-shaped items used to seal structural gaps. They possess a certain degree of elasticity, allowing them to fit tightly into the gaps. Some sealing strips also require resistance to friction and impact to ensure a stable sealing effect. After the sealing strips are manufactured, tensile testing is necessary to determine their tensile strength in actual use.

[0003] Chinese patent application date: February 15, 2023, publication number: CN219302148U, discloses a rubber sealing strip tensile testing device, which solves the problem of inconvenience and poor fixing effect when fixing sealing strips in tensile testing devices. The device includes a workbench with a mounting frame fixedly installed on its top. Inside the mounting frame are two mounting seats, each with a tensile sensor fixedly installed on its top. A tensile detector is fixedly installed at one end of the top of the workbench. A cylinder is fixedly installed on one side of each mounting seat, and a fixing plate is fixedly installed on the other side of each mounting seat. The transmission ends of both cylinders extend to the other side of the mounting seats and are fixedly mounted with a first transmission rod. Second transmission rods are rotatably installed at both ends of the two first transmission rods. This tensile testing device can quickly and easily fix the sealing strip stably, preventing slippage during tensile testing, and has good practicality.

[0004] In this technical solution, the tensile strength of the sealing strip is determined by fixing both ends of the sealing strip and then stretching it in opposite directions. However, during the testing process, it is difficult to monitor the deformation of the sealing strip in real time; moreover, when clamping and fixing both ends of the sealing strip, it is difficult to ensure that the clamping force on both ends of the sealing strip is equal, resulting in different deformations at both ends of the sealing strip due to the clamping force, which affects the test results. Further improvements are needed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a rubber sealing strip tensile testing device, which has the advantages of maintaining equal clamping forces at both ends of the sealing strip and real-time monitoring of the deformation of the sealing strip. This solves the problems of unequal clamping forces at both ends of the sealing strip affecting the test results and making it difficult to understand the deformation of the sealing strip in real time.

[0007] (II) Technical Solution To achieve the goal of maintaining equal clamping forces at both ends of the sealing strip and monitoring the deformation of the sealing strip in real time, the present invention provides the following technical solution: a rubber sealing strip tensile testing device, comprising a holding groove, with tension guide rails provided on the rear sides of both ends of the holding groove, and a fixed clamping block slidably connected to each tension guide rail, and a tension driving component provided between the bottoms of two fixed clamping blocks; a pushing component is provided on the front side of the holding groove, with a pressure balancing component fixedly installed on the pushing component, and movable clamping blocks fixedly installed at both ends of the pressure balancing component; and a monitoring component is hinged between the two tension guide rails.

[0008] Preferably, the holding tank includes a support, a tray is welded to the top of the support, a fixed baffle is welded to the front side of the tray, a support platform is integrally formed on the top of the fixed baffle, a movable baffle is slidably connected to the lower rear half of the tray, and an avoidance groove is provided through the support.

[0009] Preferably, a mounting base is fixedly installed on the rear side of the tension guide rail, and slider one and slider two are slidably connected on the tension guide rail. Limiting rivets are provided on the front sides of both ends of the tension guide rail.

[0010] Preferably, the fixed clamp is fixedly installed on the front side of the slider, and an L-shaped folded edge is fixedly installed on the side of the fixed clamp facing the holding groove. The lower half of the front side of the fixed clamp is provided with slots, and the rear side of the bottom end of the movable clamp is fixed with support beams. The support beams correspond one-to-one with the slots, and the support beams are inserted into the slots.

[0011] Preferably, the stretching drive includes a motor, the output end of which is connected to a threaded rod, the threaded rod being arranged along the length of the holding groove, the thread directions of the left and right halves of the motor being opposite, and push blocks being threadedly connected to both the left and right halves of the motor; the stretching drive also includes an arched plate fixedly installed at the bottom of the second slider, the push blocks extending to the inner side of the arched plate, a tension sensor fixedly installed on the front side of the second slider, and a connecting screw rotatably connected to the side of the fixing clamp away from the holding groove, the connecting screw being threadedly connected to the tension sensor.

[0012] Preferably, the pushing component includes a slide rail, a slide block is slidably connected to the slide rail, a vertical plate is fixedly installed on the top front end of the slide block, two guide rods are slidably connected through the vertical plate, a horizontal plate is welded between the rear ends of the two guide rods, a sliding sleeve is slidably connected to the left and right halves of the horizontal plate, and a transmission component is provided between the slide block and the tension driving component.

[0013] Preferably, the transmission component includes a Z-shaped arm, which is fixedly installed at the bottom of one of the push blocks. An inclined groove and a straight groove are provided through the Z-shaped arm, and the straight groove and the inclined groove are connected. A sliding column is fixedly installed at the bottom of the slide block, and the sliding column is slidably connected in the inclined groove and the straight groove. The Z-shaped arm and the slide block pass through the clearance groove.

[0014] Preferably, the pressure balancing component includes a hydraulic cylinder one fixedly installed on the front side of the horizontal plate, a piston one slidably connected to the front end of the hydraulic cylinder one, the piston one slidably connected to the vertical plate, and a spring one fixedly installed between the rear side of the vertical plate and the front end of the piston one; guide pipes are fixedly installed on both the left and right sides of the front end of the hydraulic cylinder one, and a hydraulic cylinder two is connected to the end of the guide pipe away from the hydraulic cylinder one, the hydraulic cylinder two is fixedly installed on the sliding sleeve, the hydraulic cylinder one and the hydraulic cylinder two are filled with hydraulic oil, a piston two is slidably connected to the rear end of the hydraulic cylinder two, and the rear end of the piston two is fixedly installed on the movable clamping block.

[0015] Preferably, the monitoring component includes a transparent cover plate, a mounting bracket fixedly installed on the rear side of the transparent cover plate, an industrial CCD fixedly installed on the mounting bracket, two mounting seats rotatably connected to the rear sides of opposite ends of each other, gears fixedly installed on the opposite ends of each of the two rotating shafts, a rack plate fixedly installed on the back of the movable baffle, the rack plate meshing with the lower side of the gears, and an elastic connector provided between the transparent cover plate and the rotating shafts.

[0016] Preferably, the elastic connector includes a sleeve fixedly installed on the front side of the bottom of the transparent cover plate, the sleeve being sleeved on the outside of the rotating shaft, and the axis of the sleeve coinciding with the axis of the rotating shaft; a boss is fixedly installed on the inner wall of the sleeve, a guide ring is fixedly installed on the boss, the center of the guide ring coinciding with the axis of the sleeve, a rotating arm is fixedly installed on the rotating shaft, the rotating arm is slidably connected to the guide ring, and a second spring is fixedly installed between the rotating arm and the boss, the second spring being used to drive the rotating arm to rotate clockwise relative to the boss.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides a rubber sealing strip tensile testing device, which has the following beneficial effects: 1. This rubber sealing strip tensile testing device uses a motor to drive a threaded rod to rotate, causing two push blocks to move in opposite directions. First, the push blocks move relative to the arched plate, pulling the Z-shaped arm to move. The Z-shaped arm, located on the side wall of the inclined groove, squeezes the sliding column, causing the sliding seat and the vertical plate to move backward. This causes the movable clamping block to move backward, clamping the end of the sealing strip between the fixed and movable clamping blocks. As the vertical plate continues to move backward, spring one is compressed, increasing the hydraulic oil pressure inside hydraulic cylinder one and gradually increasing the hydraulic pressure inside hydraulic cylinder two. This further increases the clamping force of the movable and fixed clamping blocks on the end of the sealing strip. Through the connection between hydraulic cylinder one, the guide pipe, and hydraulic cylinder two, the hydraulic pressure inside the two hydraulic cylinders two is equal, thus achieving the goal of equal clamping force on both ends of the sealing strip. 2. In the process of the slide moving backward, the movable baffle moves backward, moving away from the sealing strip. When the sealing strip is taut, the movable baffle automatically moves away from the support plate and the fixed baffle, thus keeping the sealing strip suspended during the testing process and ensuring stable and reliable testing. 3. The rubber sealing strip tensile testing device, during the backward movement of the movable baffle, drives the gear and rotating shaft to rotate through the rack plate, and the rotating arm deflects inside the sleeve. Through the connection of the second spring, it drives the sleeve and transparent cover plate to deflect forward. When the transparent cover plate is attached to the top of the support platform, the industrial CCD monitors the deformation of the sealing strip in real time; thus achieving the purpose of real-time monitoring of the deformation of the sealing strip. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a rubber sealing strip tensile testing device proposed in this invention; Figure 2 This is a three-dimensional structural diagram of the holding groove of the rubber sealing strip tensile testing device proposed in this invention; Figure 3 This is a three-dimensional structural diagram of the tension drive component of a rubber sealing strip tension detection device proposed in this invention; Figure 4 This is a three-dimensional exploded view of the tensile drive component of a rubber sealing strip tensile testing device proposed in this invention; Figure 5 This is a three-dimensional structural diagram of the fixed clamping block and the movable clamping block of the rubber sealing strip tensile testing device proposed in this invention; Figure 6 This is a three-dimensional structural diagram of the pushing component and pressure balancing component of the rubber sealing strip tensile testing device proposed in this invention; Figure 7 This is a bottom view of the slide of the rubber sealing strip tensile testing device proposed in this invention; Figure 8This is a three-dimensional structural diagram of the monitoring component of a rubber sealing strip tensile testing device proposed in this invention; Figure 9 This is a three-dimensional structural diagram of the elastic connector in the monitoring component of a rubber sealing strip tensile testing device proposed in this invention; Figure 10 This is a schematic cross-sectional view of the elastic connector in the monitoring component of a rubber sealing strip tensile testing device proposed in this invention.

[0019] In the diagram: 100, holding tank; 200, tension guide rail; 300, fixed clamping block; 400, tension drive component; 500, pushing assembly; 600, pressure balancing component; 700, movable clamping block; 800, monitoring component; 101. Bracket; 102. Support plate; 103. Fixed baffle; 104. Support platform; 105. Movable baffle; 106. Clearance groove; 201. Mounting base; 202. Slider one; 203. Slider two; 204. Limiting rivet; 301, L-shaped fold; 302, slot; 401, motor; 402, threaded rod; 403, push block; 404, tension sensor; 405, arched plate; 406, connecting screw; 501. Slide rail; 502. Slide block; 503. Vertical plate; 504. Guide rod; 505. Horizontal plate; 506. Sliding sleeve; 507. Sliding column; 508. Z-shaped arm; 509. Inclined groove; 510. Straight groove; 601. Hydraulic cylinder one; 602. Piston one; 603. Spring one; 604. Guide pipe; 605. Hydraulic cylinder two; 606. Piston two; 701. Support beam; 801. Transparent cover plate; 802. Mounting bracket; 803. Industrial CCD; 804. Rotating shaft; 805. Gear; 806. Rack plate; 807. Sleeve; 808. Boss; 809. Guide ring; 810. Rotating arm; 811. Spring II. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1A rubber sealing strip tensile testing device includes a holding groove 100, with tension guide rails 200 provided at both rear ends of the holding groove 100. Each tension guide rail 200 is slidably connected to a fixed clamping block 300, and a tension driving component 400 is provided between the bottoms of the two fixed clamping blocks 300. A pushing component 500 is provided at the front of the holding groove 100, and a pressure balancing component 600 is fixedly installed on the pushing component 500. Movable clamping blocks 700 are fixedly installed at both ends of the pressure balancing component 600. A monitoring component 800 is hinged between the two tension guide rails 200.

[0022] Please see Figure 2 The holding tank 100 includes a bracket 101, with a support plate 102 welded to the top of the bracket 101. A fixed baffle 103 is welded to the front side of the support plate 102, and a support platform 104 is integrally formed on the top of the fixed baffle 103. When the monitoring component 800 is deflected to a horizontal state, the support platform 104 supports the monitoring component 800. A movable baffle 105 is slidably connected to the lower rear half of the support plate 102. Initially, the vertical part of the movable baffle 105 is attached to the rear side of the support plate 102. The fixed baffle 103 and the movable baffle 105 cooperate to limit the sealing strip to be tested from the front and rear sides, and the support plate 102 supports the sealing strip. An avoidance groove 106 is provided through the bracket 101.

[0023] Please see Figures 3-5 A mounting base 201 is fixedly installed on the rear side of the tension guide rail 200. Slider 1 202 and slider 203 are slidably connected on the tension guide rail 200. Limiting rivets 204 are provided on the front side of both ends of the tension guide rail 200. The limiting rivets 204 are used to limit slider 1 202 and slider 203 to prevent slider 1 202 and slider 203 from detaching from the tension guide rail 200.

[0024] The fixed clamping block 300 is fixedly installed on the front side of the slider 202. An L-shaped flange 301 is fixedly installed on the side of the fixed clamping block 300 facing the holding groove 100. In practice, the length of the movable baffle 105 is less than the length of the support plate 102 and the fixed baffle 103 to avoid collision between the movable baffle 105 and the tension guide rail 200 during the backward movement of the movable baffle 105. The L-shaped flange 301 fits against the end of the movable baffle 105, and the corner of the L-shaped flange 301 has an arc transition.

[0025] The lower front half of the fixed clamping block 300 has slots 302, and the rear bottom of the movable clamping block 700 has support beams 701 fixed in an array. Each support beam 701 corresponds to one of the slots 302 and is inserted into the slot. The top of the support beam 701 is slightly higher than the top of the support plate 102. When the push assembly 500 drives the movable clamping block 700 to move backward, the fixed clamping block 300 and the movable clamping block 700 clamp the end of the sealing strip. Then, the tension drive 400 drives the two fixed clamping blocks 300 to move in opposite directions, stretching the sealing strip. After tensioning, the sealing strip no longer contacts the support plate 102. Combined with the pushing action of the movable clamping block 700, the tensioned sealing strip also moves away from the fixed baffle 103. Simultaneously with the push assembly 500 driving the movable clamping block 700 to move backward, the movable baffle 105 is also moved backward, moving away from the sealing strip and preventing friction between the sealing strip and the movable baffle 105 during the stretching process.

[0026] Please see Figures 3-4 The stretching drive 400 includes a motor 401, and a threaded rod 402 is connected to the output end of the motor 401. The threaded rod 402 is arranged along the length direction of the holding groove 100 and is located directly below the slider 1 202 and slider 2 203. The thread directions of the left and right halves of the motor 401 are opposite. Push blocks 403 are threadedly connected to both the left and right halves of the motor 401. The push blocks 403 are attached to the surface of the mounting base 201 and are blocked by the mounting base 201 to prevent the push blocks 403 from rotating with the threaded rod 402.

[0027] The tension drive component 400 also includes an arched plate 405 fixedly installed at the bottom of the second slider 203. Push blocks 403 extend to the inner side of the arched plate 405. A tension sensor 404 is fixedly installed on the front side of the second slider 203. A connecting screw 406 is rotatably connected to the side of the fixing block 300 away from the holding groove 100. The connecting screw 406 is threadedly connected to the tension sensor 404. When the motor 401 drives the threaded rod 402 to rotate, it drives the two push blocks 403 to move in opposite directions; for example... Figure 4 As shown, the push block 403 first moves to the right relative to the arched plate 405. When the push block 403 is attached to the inner wall of the right end of the arched plate 405, it pushes the arched plate 405 and the slider 203 to move to the right. The tension sensor 404 moves together with the slider 203. Then, the connecting screw 406 pulls the fixed clamping block 300 and the end of the sealing strip to move. During this process, the reading of the tension sensor 404 reflects the tension on the end of the sealing strip.

[0028] Please see Figures 6-7The pushing component 500 includes a slide rail 501, which is perpendicular to the bracket 101. A slide block 502 is slidably connected to the slide rail 501, and a vertical plate 503 is fixedly installed on the top front end of the slide block 502, perpendicular to the slide block 502. Two guide rods 504 are slidably connected through the vertical plate 503, and the two guide rods 504 are distributed left and right. A horizontal plate 505 is welded between the rear ends of the two guide rods 504, and the horizontal plate 505 is parallel to the holding groove 100. Sliding sleeves 506 are slidably connected to the left and right halves of the horizontal plate 505, and a transmission component is provided between the slide block 502 and the tensioning drive component 400.

[0029] The transmission component includes a Z-shaped arm 508, which is fixedly installed at the bottom of one of the push blocks 403. An inclined groove 509 and a straight groove 510 are provided through the Z-shaped arm 508, and the straight groove 510 and the inclined groove 509 are connected. A sliding column 507 is fixedly installed at the bottom of the slide block 502, and the sliding column 507 is slidably connected in the inclined groove 509 and the straight groove 510. The Z-shaped arm 508 and the slide block 502 pass through the clearance groove 106. Thus, when the two push blocks 403 move in opposite directions, they pull the Z-shaped arm 508 to move in the left and right directions; during the stage when the push block 403 moves relative to the arched plate 405, the Z-shaped arm 508 presses the sliding column 507 at the side wall of the inclined groove 509, causing the sliding seat 502 and the upright plate 503 to move backward; during the stage when the push block 403 pushes the arched plate 405 to move together, the sliding column 507 slides into the straight groove 510, and the sliding seat 502 and the upright plate 503 remain in their current positions.

[0030] Please see Figure 6 The pressure balancing component 600 includes a hydraulic cylinder 601 fixedly installed on the front side of the horizontal plate 505. A piston 602 is slidably connected to the front end of the hydraulic cylinder 601. The piston 602 is slidably connected to the vertical plate 503. A spring 603 is fixedly installed between the rear side of the vertical plate 503 and the front end of the piston 602. Guide pipes 604 are fixedly installed on both the left and right sides of the front end of the hydraulic cylinder 601. A hydraulic cylinder 605 is connected to the end of the guide pipe 604 away from the hydraulic cylinder 601. The hydraulic cylinder 605 is fixedly installed on the sliding sleeve 506. The hydraulic cylinders 601 and 605 are filled with hydraulic oil. A piston 606 is slidably connected to the rear end of the hydraulic cylinder 605. The rear end of the piston 606 is fixedly installed on the movable clamping block 700.

[0031] Through the connection between hydraulic cylinder 601 and guide pipe 604, the hydraulic pressure in the two hydraulic cylinders 605 is equal, thereby making the clamping force of the two movable clamping blocks 700 on the end of the sealing strip equal.

[0032] When the slide block 502 and the vertical plate 503 move backward, they drive the horizontal plate 505 to move backward. After the movable clamping block 700 is attached to the surface of the sealing strip, the vertical plate 503 continues to move backward. The spring 603 is compressed, and the pressure applied by the piston 602 to the hydraulic oil inside the hydraulic cylinder 601 gradually increases. As a result, the hydraulic pressure inside the hydraulic cylinder 605 gradually increases, and the pressure of the movable clamping block 700 on the sealing strip gradually increases.

[0033] Please see Figures 8-10 The monitoring component 800 includes a transparent cover plate 801, a mounting bracket 802 fixedly mounted on the rear side of the transparent cover plate 801, an industrial CCD 803 fixedly mounted on the mounting bracket 802, two mounting seats 201 are rotatably connected to the rear side of opposite ends of each other with a rotating shaft 804, and gears 805 are fixedly mounted on opposite ends of each of the two rotating shafts 804. A rack plate 806 is fixedly mounted on the back of the movable baffle 105, and the rack plate 806 meshes with the underside of the gear 805. An elastic connector is provided between the transparent cover plate 801 and the rotating shaft 804. When the movable baffle 105 is attached to the rear side of the support plate 102, the transparent cover plate 801 remains vertical, which facilitates the placement of the sealing strip to be tested between the fixed baffle 103 and the movable baffle 105. During the backward movement of the movable baffle 105, the rack plate 806 drives the gear 805 and the rotating shaft 804 to rotate, and with the connection of the elastic connector, the transparent cover plate 801 is deflected forward. After the transparent cover plate 801 deflects 90°, the transparent cover plate 801 is attached to the top of the support platform 104, so that the transparent cover plate 801 can cover the sealing strip from the top to prevent the sealing strip from being thrown out when it breaks. The deformation of the sealing strip is detected in real time by taking pictures with an industrial CCD 803.

[0034] The elastic connector includes a sleeve 807 fixedly installed on the front side of the bottom of the transparent cover plate 801. The sleeve 807 is sleeved on the outside of the rotating shaft 804, and the axis of the sleeve 807 coincides with the axis of the rotating shaft 804. A boss 808 is fixedly installed on the inner wall of the sleeve 807. A guide ring 809 is fixedly installed on the boss 808. The center of the guide ring 809 coincides with the axis of the sleeve 807. A rotating arm 810 is fixedly installed on the rotating shaft 804. The rotating arm 810 is slidably connected to the guide ring 809. A second spring 811 is fixedly installed between the rotating arm 810 and the boss 808. The second spring 811 is used to drive the rotating arm 810 to rotate clockwise relative to the boss 808.

[0035] As the rack plate 806 moves backward, it drives the gear 805 and the rotating shaft 804 to rotate counterclockwise. The rotating arm 810 compresses the second spring 811 and pushes the sleeve 807 and the transparent cover plate 801 to deflect counterclockwise. After the transparent cover plate 801 deflects 90° and fits against the surface of the support platform 104, the rack plate 806 continues to move backward, the rotating arm 810 and the rotating shaft 804 continue to rotate, the second spring 811 is compressed, increasing the pressure between the transparent cover plate 801 and the support platform 104, so that the transparent cover plate 801 remains horizontal.

[0036] When in use, place the sealing strip to be tested on the top of the tray 102 and make both ends of the sealing strip fit against the support beam 701; The motor 401 drives the threaded rod 402 to rotate, which in turn drives the two push blocks 403 to move in opposite directions. First, the push block 403 moves relative to the arched plate 405. The push block 403 pulls the Z-shaped arm 508 to move. The Z-shaped arm 508 is located on the side wall of the inclined groove 509 and squeezes the sliding column 507, which drives the sliding seat 502 and the upright plate 503 to move backward, thereby causing the movable clamping block 700 to move backward, so that the fixed clamping block 300 and the movable clamping block 700 clamp the end of the sealing strip. As the vertical plate 503 continues to move backward, the spring 603 is compressed, the piston 602 increases the hydraulic oil pressure inside the hydraulic cylinder 601, and the hydraulic pressure inside the hydraulic cylinder 605 gradually increases, thereby gradually increasing the clamping force of the movable clamping block 700 and the fixed clamping block 300 on the end of the sealing strip. During the backward movement of the slide block 502, the movable baffle 105 is moved backward, causing the movable baffle 105 to move away from the sealing strip. When the sealing strip is tightened, it automatically moves away from the support plate 102 and the fixed baffle 103. During the backward movement of the movable baffle 105, the rack plate 806 drives the gear 805 and the rotating shaft 804 to rotate, and the rotating arm 810 deflects inside the sleeve 807. Through the connection of the spring 811, the sleeve 807 and the transparent cover plate 801 are driven to deflect forward. When the transparent cover plate 801 is attached to the top of the support platform 104, the industrial CCD 803 monitors the deformation of the sealing strip in real time. Then, the pusher 403 pushes the arched plate 405 to move together, and the tension sensor 404 moves with the slider 203. In conjunction with the connecting screw 406, the fixed clamping block 300 and the movable clamping block 700 clamp the end of the sealing strip and stretch it. The data from the tension sensor 404 reflects the tension on the sealing strip.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber sealing strip tensile testing device, comprising a holding groove (100), characterized in that: The container (100) is provided with tension guide rails (200) at both ends and rear sides. Each tension guide rail (200) is slidably connected with a fixed clamping block (300). A tension driving component (400) is provided between the bottoms of two fixed clamping blocks (300). A pushing component (500) is provided on the front side of the holding tank (100). A pressure balancing component (600) is fixedly installed on the pushing component (500). Movable clamps (700) are fixedly installed at both ends of the pressure balancing component (600). A monitoring component (800) is hinged between the two tension guides (200).

2. The rubber sealing strip tensile testing device according to claim 1, characterized in that: The holding tank (100) includes a support (101), a tray (102) is welded to the top of the support (101), a fixed baffle (103) is welded to the front side of the tray (102), a support platform (104) is integrally formed on the top of the fixed baffle (103), a movable baffle (105) is slidably connected to the lower rear half of the tray (102), and an avoidance groove (106) is provided through the support (101).

3. The rubber sealing strip tensile testing device according to claim 2, characterized in that: The tension guide rail (200) is fixedly installed with a mounting base (201) on the rear side. Slider 1 (202) and slider 2 (203) are slidably connected on the tension guide rail (200). Limiting rivets (204) are provided on the front side of both ends of the tension guide rail (200).

4. The rubber sealing strip tensile testing device according to claim 3, characterized in that: The fixed clamp (300) is fixedly installed on the front side of the slider (202). The fixed clamp (300) has an L-shaped folded edge (301) fixedly installed on the side facing the holding groove (100). The lower half of the front side of the fixed clamp (300) is provided with slots (302). The rear side of the bottom end of the movable clamp (700) is fixed with a support beam (701). The support beam (701) corresponds to the slot (302) one by one. The support beam (701) is inserted into the slot (302).

5. The rubber sealing strip tensile testing device according to claim 4, characterized in that: The stretching drive (400) includes a motor (401), the output end of which is connected to a threaded rod (402). The threaded rod (402) is arranged along the length of the holding groove (100). The threaded directions of the left and right halves of the motor (401) are opposite. Push blocks (403) are threadedly connected to both the left and right halves of the motor (401). The tension drive (400) also includes an arched plate (405) fixedly installed at the bottom of the second slider (203), the push block (403) extends to the inner side of the arched plate (405), a tension sensor (404) is fixedly installed on the front side of the second slider (203), and a connecting screw (406) is rotatably connected to the side of the fixed clamp (300) away from the holding groove (100), and the connecting screw (406) is threadedly connected to the tension sensor (404).

6. The rubber sealing strip tensile testing device according to claim 5, characterized in that: The pushing assembly (500) includes a slide rail (501), a slide block (502) is slidably connected to the slide rail (501), a vertical plate (503) is fixedly installed on the top front end of the slide block (502), two guide rods (504) are slidably connected through the vertical plate (503), a horizontal plate (505) is welded between the rear ends of the two guide rods (504), and a sliding sleeve (506) is slidably connected to the left and right halves of the horizontal plate (505). A transmission component is provided between the slide block (502) and the tension driving component (400).

7. The rubber sealing strip tensile testing device according to claim 6, characterized in that: The transmission component includes a Z-shaped arm (508), which is fixedly installed at the bottom of one of the push blocks (403). An inclined groove (509) and a straight groove (510) are provided through the Z-shaped arm (508), and the straight groove (510) and the inclined groove (509) are connected. A sliding column (507) is fixedly installed at the bottom of the slide block (502), and the sliding column (507) is slidably connected in the inclined groove (509) and the straight groove (510). The Z-shaped arm (508) and the slide block (502) pass through the clearance groove (106).

8. The rubber sealing strip tensile testing device according to claim 7, characterized in that: The pressure balancing component (600) includes a hydraulic cylinder (601) fixedly installed on the front side of the horizontal plate (505), a piston (602) slidably connected to the front end of the hydraulic cylinder (601), the piston (602) slidably connected to the vertical plate (503), and a spring (603) fixedly installed between the rear side of the vertical plate (503) and the front end of the piston (602). The hydraulic cylinder 1 (601) has guide pipes (604) fixedly installed on both the left and right sides of its front end. The end of the guide pipe (604) away from the hydraulic cylinder 1 (601) is connected to the hydraulic cylinder 2 (605). The hydraulic cylinder 2 (605) is fixedly installed on the sliding sleeve (506). The hydraulic cylinder 1 (601) and the hydraulic cylinder 2 (605) are filled with hydraulic oil. The piston 2 (606) is slidably connected to the rear end of the hydraulic cylinder 2 (605). The rear end of the piston 2 (606) is fixedly installed on the movable clamping block (700).

9. The rubber sealing strip tensile testing device according to claim 8, characterized in that: The monitoring component (800) includes a transparent cover plate (801), a mounting bracket (802) is fixedly installed on the rear side of the transparent cover plate (801), an industrial CCD (803) is fixedly installed on the mounting bracket (802), two mounting seats (201) are rotatably connected to the rear side of opposite ends of each other with a rotating shaft (804), gears (805) are fixedly installed on opposite ends of each of the two rotating shafts (804), a rack plate (806) is fixedly installed on the back of the movable baffle (105), the rack plate (806) meshes with the underside of the gear (805), and an elastic connector is provided between the transparent cover plate (801) and the rotating shaft (804).

10. The rubber sealing strip tensile testing device according to claim 9, characterized in that: The elastic connector includes a sleeve (807) fixedly installed on the front side of the bottom of the transparent cover plate (801). The sleeve (807) is sleeved on the outside of the rotating shaft (804), and the axis of the sleeve (807) coincides with the axis of the rotating shaft (804). A boss (808) is fixedly installed on the inner wall of the sleeve (807). A guide ring (809) is fixedly installed on the boss (808). The center of the guide ring (809) coincides with the axis of the sleeve (807). A rotating arm (810) is fixedly installed on the rotating shaft (804). The rotating arm (810) is slidably connected to the guide ring (809). A second spring (811) is fixedly installed between the rotating arm (810) and the boss (808). The second spring (811) is used to drive the rotating arm (810) to rotate clockwise relative to the boss (808).

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