A strength testing device for plastic products

Abstract

This utility model relates to the field of plastic product testing technology, specifically a plastic product strength testing device, including a placement platform, a connecting seat, a connecting arm, a mover, and a connector. The connecting seat is fixedly connected to the upper surface of the placement platform, and the connecting arm is fixedly connected to the upper surface of the connecting seat. The mover is slidably disposed inside the connecting arm, and the connector is fixedly connected to the lower surface of the mover. A protective device is slidably disposed on the outer wall of the connecting arm. The protective device includes a moving frame and a slide rail, with the slide rail located on the side of the connecting arm away from the mover. This utility model, by incorporating a protective device, effectively blocks the material during testing, thus protecting the user's safety. With conventional equipment, during tensile testing, fragments from broken materials can easily fly and injure the user, thus improving user safety.

Description

Technical Field

[0001] This utility model relates to the field of plastic product testing technology, and in particular to a plastic product strength testing device. Background Technology

[0002] Plastic products are a general term for daily necessities and industrial products made primarily from plastics. They include products manufactured using all processes such as injection molding and thermoforming. Plastics are a type of synthetic polymer material with plasticity. When producing plastic products, it is necessary to test the strength of the products. Therefore, plastic product strength testing devices are used for testing.

[0003] Existing technologies, such as patent CN217180293U, disclose a strength testing device for glass fiber molding compound products. This patent uses a main body, inside which a motor is installed. A gear is provided at the output end of the motor, and a rack meshes with the gear at diagonal positions on both sides. This utility model device solves the problem that existing devices require fixing and limiting the plastic product during use. Existing fixing and limiting devices have low adaptability and cannot well adapt to plastic products of different thicknesses and sizes. This causes the plastic product to shake or even shift its position during the test, resulting in a large deviation in the measurement results.

[0004] In daily operation, the equipment is prone to breakage during testing. The broken fragments can easily fly out and hit the user, causing injury. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where material breaks and splashes during testing, causing injury to the user. This invention provides a plastic product strength testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic product strength testing device, comprising a placement platform, a connecting seat, a connecting arm, a mover, and a connector. The connecting seat is fixedly connected to the upper surface of the placement platform, the connecting arm is fixedly connected to the upper surface of the connecting seat, the mover is slidably disposed inside the connecting arm, the connector is fixedly connected to the lower surface of the mover, a protective device is slidably disposed on the outer wall of the connecting arm, the protective device comprising a moving frame and a slide rail, the slide rail being opened on the side of the connecting arm away from the mover, the moving frame being slidably connected inside the slide rail, a connecting frame being fixedly connected to the surface of the moving frame, a protective plate being snapped into the inside of the connecting frame, a limiting frame being fixedly connected to the side of the moving frame, a slider being slidably connected inside the limiting frame, a baffle being fixedly connected to the top side of the connecting arm, and a limiting block being slidably connected inside the slider.

[0007] Furthermore, a movable rod is fixedly connected to the upper surface of the limiting block, and a retaining ball is fixedly connected to the upper end of the movable rod. By setting the retaining ball, the movable frame can be limited, reducing the situation where the movable frame is difficult to stop at the upper end of the connecting arm when the equipment is in use, making it difficult for the equipment to quickly place the test material.

[0008] Furthermore, the ball is engaged with the inside of the baffle, and a first spring is sleeved on the surface of the moving rod to provide elastic force to the limiting block and the moving rod.

[0009] Furthermore, one end of the first spring is fixedly connected to the upper surface of the limiting block, and the end of the first spring away from the limiting block is fixedly connected to the inside of the slider.

[0010] Furthermore, the movable frame is equipped with a replacement device, which includes a positioning hole and a pressing hole. The positioning hole is formed on the surface of the protective plate, and the pressing hole is formed on the surface of the movable frame. A positioning rod is slidably connected inside the pressing hole, and one end of the positioning rod is inserted into the positioning hole. By setting the positioning rod, the protective plate can be limited, reducing the possibility that the protective plate may shake and detach from the movable frame during use, making it difficult for the movable frame to protect the user.

[0011] Furthermore, a second spring is fixedly connected to the end of the positioning rod away from the positioning hole, and the end of the second spring away from the positioning rod is fixedly connected to the bottom of the pressure hole. The second spring is provided to facilitate the application of a reset force to the positioning rod.

[0012] Furthermore, a pressure rod is fixedly connected to the side of the positioning rod near the first spring. The pressure rod is slidably connected to the inside of the pressure hole. The pressure rod is provided to facilitate the movement of the positioning rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, by setting up a protective device, when the equipment is testing materials, the user moves the slider towards the protective plate. The slider then moves the retaining ball away from the baffle. As the retaining ball moves, it causes the moving rod to move upwards against the limiting block inside the slider. The limiting block's movement causes the first spring to deform and generate elastic force. When the retaining ball leaves the baffle, the moving frame, no longer restrained, moves within the slide rail and blocks the material between itself and the connector. This protective device effectively blocks the material during testing, protecting the user's safety. In general equipment, during tensile testing, fragments from broken materials can easily fly and injure the user. This protective device, through the coordinated operation of the moving frame, connecting frame, protective plate, retaining ball, and baffle, effectively prevents flying debris after material breakage, improving user safety.

[0015] In this invention, a replacement device is provided. When replacing the protective plate, the user presses the pressure rod, which then moves to drive the positioning rod to apply pressure to the second spring. When the positioning rod moves, it disengages from the positioning hole inside the protective plate, causing the protective plate to lose its restraint and be pulled away from the connecting frame for replacement. This replacement device effectively replaces the protective plate quickly. Conventional equipment uses bolts to connect the protective plate to the surface of the moving frame. After repeated blocking of material debris, the protective plate is prone to impact damage, resulting in reduced protective effectiveness and requiring replacement. Because the protective plate is fixed with bolts, replacement efficiency is low. This replacement device, through the cooperation of the positioning rod, pressure rod, and second spring, allows for quick installation and removal of the protective plate, enabling flexible replacement and improving the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a plastic product strength testing device;

[0017] Figure 2 This utility model provides a side view structural diagram of a plastic product strength testing device;

[0018] Figure 3 This utility model provides a partial structural schematic diagram of a plastic product strength testing device;

[0019] Figure 4 This utility model proposes a strength testing device for plastic products. Figure 3 Schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This utility model proposes a strength testing device for plastic products. Figure 3Schematic diagram of the structure at point B.

[0021] Legend: 1. Placement platform; 2. Connecting seat; 3. Connecting arm; 4. Movable device; 5. Connector; 6. Protective device; 61. Moving frame; 62. Slide rail; 63. Connecting frame; 64. Protective plate; 65. Limiting frame; 66. Baffle; 67. Sliding block; 68. Moving rod; 69. Ball catcher; 610. Limiting block; 611. First spring; 7. Changing device; 71. Positioning hole; 72. Pressing hole; 73. Positioning rod; 74. Pressing rod; 75. Second spring. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: a plastic product strength testing device, including a placement platform 1, a connecting seat 2, a connecting arm 3, a mover 4 and a connector 5. The connecting seat 2 is fixedly connected to the upper surface of the placement platform 1, the connecting arm 3 is fixedly connected to the upper surface of the connecting seat 2, the mover 4 is slidably disposed inside the connecting arm 3, and the connector 5 is fixedly connected to the lower surface of the mover 4.

[0023] The specific settings and functions of its protective device 6 and replacement device 7 will be explained in detail below.

[0024] In this embodiment: a protective device 6 is slidably provided on the outer wall of the connecting arm 3. The protective device 6 includes a movable frame 61 and a slide rail 62. The slide rail 62 is opened on the side of the connecting arm 3 away from the mover 4. The movable frame 61 is slidably connected inside the slide rail 62. A connecting frame 63 is fixedly connected to the surface of the movable frame 61. A protective plate 64 is snapped into the inside of the connecting frame 63. A limit frame 65 is fixedly connected to the side of the movable frame 61. A slider 67 is slidably connected inside the limit frame 65. A baffle 66 is fixedly connected to the side of the top of the connecting arm 3. A limit block 610 is slidably connected inside the slider 67.

[0025] Specifically, a movable rod 68 is fixedly connected to the upper surface of the limiting block 610, and a locking ball 69 is fixedly connected to the upper end of the movable rod 68.

[0026] In this embodiment, by setting the locking ball 69, the moving frame 61 can be limited, which reduces the difficulty of the moving frame 61 stopping at the upper end of the connecting arm 3 during use, thus preventing the equipment from quickly placing the test material.

[0027] Specifically, the ball 69 is internally engaged with the baffle 66, and a first spring 611 is sleeved and connected to the surface of the moving rod 68. The first spring 611 is provided to provide elastic force to the limiting block 610 and the moving rod 68.

[0028] Specifically, one end of the first spring 611 is fixedly connected to the upper surface of the limiting block 610, and the end of the first spring 611 away from the limiting block 610 is fixedly connected to the inside of the slider 67.

[0029] In this embodiment: a replacement device 7 is provided inside the movable frame 61. The replacement device 7 includes a positioning hole 71 and a pressing hole 72. The positioning hole 71 is opened on the surface of the protective plate 64, and the pressing hole 72 is opened on the surface of the movable frame 61. A positioning rod 73 is slidably connected inside the pressing hole 72, and one end of the positioning rod 73 is inserted into the positioning hole 71.

[0030] In this embodiment: by setting the positioning rod 73, the protective plate 64 can be limited, which reduces the possibility that the protective plate 64 may shake and detach from the moving frame 61 during use, making it difficult for the moving frame 61 to protect the user.

[0031] Specifically, a second spring 75 is fixedly connected to the end of the positioning rod 73 away from the positioning hole 71, and the end of the second spring 75 away from the positioning rod 73 is fixedly connected to the bottom of the pressure hole 72. The second spring 75 is provided to facilitate the application of a reset spring force to the positioning rod 73.

[0032] Specifically, a pressure rod 74 is fixedly connected to the side of the positioning rod 73 near the first spring 611. The pressure rod 74 is slidably connected to the inside of the pressure hole 72. The pressure rod 74 is provided to facilitate the movement of the positioning rod 73.

[0033] Working principle: When the equipment tests materials, the user moves the slider 67 towards the protective plate 64. The slider 67 then moves the retaining ball 69 away from the baffle 66. As the retaining ball 69 moves, it moves the moving rod 68, causing the limiting block 610 to move upwards within the slider 67. The limiting block 610's movement causes the first spring 611 to deform and generate elastic force. When the retaining ball 69 leaves the baffle 66, the moving frame 61, no longer restrained, moves within the slide rail 62, blocking the material between itself and the connector 5. By setting up the protective device 6, the equipment effectively blocks the material during testing, protecting the user's safety. In general equipment, during tensile testing, broken fragments can easily fly and hit the user, causing injury. This protective device 6, through the cooperation of the moving frame 61, connecting frame 63, protective plate 64, retaining ball 69, and baffle 66, effectively blocks flying debris after material breakage, improving user safety.

[0034] When replacing the protective plate 64, the user presses the pressure rod 74, which moves and drives the positioning rod 73 to apply pressure to the second spring 75. When the positioning rod 73 moves, it disengages from the positioning hole 71 inside the protective plate 64, and the protective plate 64 is released from its restraint. The protective plate 64 is then pulled away from the connecting frame 63 for replacement. By setting up the replacement device 7, the protective plate 64 can be replaced effectively and quickly. Ordinary equipment uses bolts to connect the protective plate 64 to the surface of the moving frame 61. After the equipment blocks material debris multiple times, the protective plate 64 is prone to impact damage, resulting in a decrease in protective effect and requiring replacement. Because the protective plate 64 is fixed with bolts, the replacement efficiency of the protective plate 64 is low. This replacement device 7, through the cooperation between the positioning rod 73, the pressure rod 74, and the second spring 75, allows for quick installation and removal of the protective plate 64, enabling flexible replacement and improving the practicality of the equipment.

Claims

1. A plastic product strength detection device, comprising a placing table (1), a connecting seat (2), a connecting arm (3), a mover (4) and a connector (5), characterized in that: The connecting seat (2) is fixedly connected to the upper surface of the placement platform (1), the connecting arm (3) is fixedly connected to the upper surface of the connecting seat (2), the locator (4) is slidably disposed inside the connecting arm (3), the connector (5) is fixedly connected to the lower surface of the locator (4), and a protective device (6) is slidably disposed on the outer wall of the connecting arm (3). The protective device (6) includes a moving frame (61) and a slide rail (62). The slide rail (62) is located on the connecting arm (3) away from the locator (4). On the side, the movable frame (61) is slidably connected inside the slide rail (62), and a connecting frame (63) is fixedly connected to the surface of the movable frame (61). A protective plate (64) is snapped into the inside of the connecting frame (63). A limiting frame (65) is fixedly connected to the side of the movable frame (61), and a slider (67) is slidably connected inside the limiting frame (65). A baffle (66) is fixedly connected to the top side of the connecting arm (3), and a limiting block (610) is slidably connected inside the slider (67).

2. The device for testing the strength of a plastic product according to claim 1, characterized in that: A movable rod (68) is fixedly connected to the upper surface of the limiting block (610), and a locking ball (69) is fixedly connected to the upper end of the movable rod (68).

3. A device for detecting the strength of a plastic product according to claim 2, characterized in that: The ball (69) is engaged with the inside of the baffle (66), and the surface of the moving rod (68) is fitted with a first spring (611).

4. The device for testing the strength of a plastic product according to claim 3, characterized in that: One end of the first spring (611) is fixedly connected to the upper surface of the limiting block (610), and the end of the first spring (611) away from the limiting block (610) is fixedly connected to the inside of the slider (67).

5. The device for testing the strength of a plastic product according to claim 1, characterized in that: The movable frame (61) is provided with a replacement device (7). The replacement device (7) includes a positioning hole (71) and a pressing hole (72). The positioning hole (71) is opened on the surface of the protective plate (64), and the pressing hole (72) is opened on the surface of the movable frame (61). A positioning rod (73) is slidably connected inside the pressing hole (72). One end of the positioning rod (73) is inserted into the positioning hole (71).

6. A device for detecting the strength of a plastic product according to claim 5, characterized in that: The end of the positioning rod (73) away from the positioning hole (71) is fixedly connected to a second spring (75), and the end of the second spring (75) away from the positioning rod (73) is fixedly connected to the bottom of the pressure hole (72).

7. A device for detecting the strength of a plastic product according to claim 6, characterized in that: The positioning rod (73) is fixedly connected to a pressure rod (74) on the side near the first spring (611), and the pressure rod (74) is slidably connected to the inside of the pressure hole (72).

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