Simulation test device for breaking traces of plain glass

Abstract

The utility model discloses a plane glass breaking trace simulation test device which comprises a box body with an opening in one side, two groups of rotating frames are arranged in the box body, a placing frame is fixedly connected between the rotating frames, a glass frame is clamped on the placing frame, a sealing plate is connected to the opening of the box body in a sliding mode, and the opening of the box body is in sliding connection with the sealing plate. One end of the sealing plate is fixedly connected with a brace, and two opposite surfaces of the box body are respectively provided with a wheel set and a handle; the glass frame is clamped and fixed through the placing frame fixed on the rotating frame, the process and the result of hit glass reconstruction are simulated, an on-site experiment verification platform is provided for case property determination and investigation and case solving, an objective and accurate conclusion can be made conveniently, and the device can be directly placed in the box body when not in use, is convenient to carry, install and use, and is convenient to popularize and use. And convenience is provided for case handling personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of glass breakage simulation, in particular to a plane glass breakage trace simulation test device. Background Art

[0002] Glass shatter marks are a type of traditional tool marks. In field investigations, glass shatter marks are often encountered, and it is necessary to determine what kind of tool caused the impact. Gunshots, slingshots, and high-speed stones produce different shatter marks due to different speeds and masses. Different directions and locations of impact will also form different marks.

[0003] As a transparent material installed on doors, windows and furniture, daily-use glass in buildings is often found to have broken marks in cases. In the inspection and analysis of broken marks, it is generally necessary to determine what kind of impact caused it, the direction of the impact, and the location of the impact based on the marks on the broken glass.

[0004] On the basis of learning and drawing on the previous experts' glass breakage mark inspection theory and experience, the inspection and identification technology lacks the experience of actual observation and verification, which leads to ambiguous conclusions in the inspection of glass breakage marks during on-site inspections. Further experimental verification and elimination are needed to make more objective and scientific conclusions. However, in practice, it is not possible to strike all the glass on the scene again for experiments. For the purpose of this application, a flat glass breakage mark simulation test device is proposed to solve the above problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a plane glass breakage trace simulation test device.

[0006] In order to solve the above technical problems, the utility model includes a box body with an opening on the upper side, two groups of rotating frames are arranged in the box body, and placement frames are fixedly connected between the rotating frames. A clamping structure for clamping a glass frame is arranged on the placement frame. The rotating frame has a first state in which the rotating frame, the placement frame and the clamping structure are rotated to completely enter the box body and a second state in which the clamping structure extends out of the box body.

[0007] Preferably, a sealing plate is slidably connected to the opening of the box body, a pull rod is fixedly connected to one end of the sealing plate, and two opposite surfaces of the box body are respectively provided with a wheel set and a handle.

[0008] Preferably, two strips are fixedly connected to a side of the box body opposite to the opening, and the two rotating frames are fixedly mounted on the strips respectively.

[0009] Preferably, the rotating frame includes a cross bar and a rotating rod, the cross bar is fixedly connected to the slat, one end of the rotating rod is rotatably connected to one end of the cross bar, the cross bar is movably connected to a support bar via a first pin, the support bar is fixedly connected to a second pin, the second pin is slidably connected to the rotating rod, a buckle matching the second pin is provided on the rotating rod, the buckle is elastically rotatably connected to the rotating rod, and after the rotating rod is rotated to vertical, the buckle is engaged with the second pin to fix the rotating rod.

[0010] Preferably, the cross bar and the rotating rod are both U-shaped steel parts, the support bars are provided in two and are symmetrically arranged, and the second pin passes through the rotating rod.

[0011] Preferably, the rotating rod is provided with a groove along the length direction, and the second pin passes through the groove and slides along the groove.

[0012] Preferably, the placement rack is a U-shaped structure, the clamping structure is a symmetrical slot arranged on the placement rack, rubber strips are fixed to both side walls of the slot, and the glass frame is inserted from the upper end of the slot and clamped and fixed by the rubber strips.

[0013] Preferably, guide grooves are provided on both sides of the opening of the box body, and guide strips slidably connected to the guide grooves are fixedly connected to both sides of the sealing plate.

[0014] The beneficial effects of the utility model are as follows: the utility model clamps the glass frame through the placement rack fixed on the rotating rack, simulates the process and results of reconstructing the hit glass, provides an on-site experimental verification platform for determining the nature of the case and investigating and solving the case, and is convenient for making objective and accurate conclusions. When not in use, the utility model can be directly placed in the box, which is easy to carry, easy to install and use, and provides convenience for case handlers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the utility model from another perspective;

[0017] Figure 3 It is a front view schematic diagram of the overall structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the utility model without clamping the glass frame;

[0019] Figure 5 It is a three-dimensional schematic diagram of the rotating frame structure of the utility model;

[0020] Figure 6 It is a three-dimensional schematic diagram of the placement rack structure of the utility model;

[0021] Figure 7 It is a schematic diagram of the box body of the utility model after the opening is sealed by the sealing plate.

[0022] In the figure: 1. box body; 2. rotating frame; 21. cross bar; 22. rotating rod; 23. first pin shaft; 24. supporting bar; 25. second pin shaft; 26. buckle; 27. strip groove; 3. strip board; 4. placement rack; 5. glass frame; 6. sealing plate; 7. pull strip; 8. wheel set; 9. handle; 10. slot; 11. rubber strip; 12. guide groove; 13. guide strip. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] like Figure 1-7 As shown, the present embodiment provides a plane glass breakage mark simulation test device, comprising a box body 1 with an opening on the upper side, the box body 1 is a rectangular parallelepiped structure, the opening is arranged at the large surface position of the box body 1, two groups of rotating frames 2 are arranged in the box body 1, two strips 3 are fixedly connected to the side of the box body 1 opposite to the opening, the two rotating frames 2 are respectively fixedly mounted on the strips 3, a placement frame 4 is fixedly connected between the rotating frames 2, a clamping structure for clamping a glass frame 5 is arranged on the placement frame 4, glass is fixed on the glass frame 5, the rotating frame 2 has a first state in which the rotating frame 2, the placement frame 4 and the clamping structure are completely rotated into the box body, and a second state in which the clamping structure is extended out of the box body.

[0025] A sealing plate 6 is slidably connected to the opening of the box body 1, and the sealing plate 6 is used to close the opening of the box body 1. A pull strip 7 is fixedly connected to one end of the sealing plate 6. A wheel set 8 and a handle 9 are respectively provided on two opposite surfaces of the box body 1. The wheel set 8 consists of four wheels, all of which can be universal wheels, or two universal wheels and two fixed wheels.

[0026] like Figure 5 , 6As shown, the rotating frame 2 includes a cross bar 21 and a rotating rod 22, both of which are U-shaped steel parts. The cross bar 21 is fixedly connected to the strip plate 3, and one end of the rotating rod 22 is rotatably connected to one end of the cross bar 21. The cross bar 21 is movably connected with a support bar 24 through a first pin shaft 23. The support bars 24 are provided in two and symmetrically arranged. A second pin shaft 25 is fixedly connected between the two support bars 24. The second pin shaft 25 passes through the rotating rod 22 and the second pin shaft 25 is slidably connected to the rotating rod 22. Specifically, the rotating rod 22 is provided with a strip groove 27 along the length direction. The second pin shaft 25 passes through the strip groove 27 and slides along the strip groove 27. The rotating rod 2 2 is provided with a buckle 26 matching the second pin shaft 25, and the buckle 26 is elastically rotatably connected with the rotating rod 22. After the rotating rod 22 is rotated to the vertical direction, the buckle 26 is engaged with the second pin shaft 25 to fix the rotating rod 22, and one side of the rotating rod 22 is in contact with the inner side of the box body 1. After the glass breaking simulation test, the buckle 26 is rotated to unlock the second pin shaft 25, so that the second pin shaft 25 slides on the rotating rod 22, and the rotating rod 22 rotates toward the cross bar 21, and the whole device is placed in the box body 1, and the sealing plate 6 is slid to close the opening of the box body 1. The box body 1 is pulled by the handle 9 to make the box body 1 stand up, and the wheel body is used for convenient movement.

[0027] like Figure 6 As shown, the placement rack 4 is a U-shaped structure, and the clamping structure is a symmetrical slot 10 arranged on the placement rack 4. Rubber strips 11 are fixed to both side walls of the slot 10. The glass frame 5 is inserted from the upper end of the slot 10 and clamped and fixed by the rubber strips 11.

[0028] like Figure 2 , 4 As shown, guide grooves 12 are provided on both sides of the opening of the box body 1 , and guide strips 13 slidably connected to the guide grooves 12 are fixedly connected to both sides of the sealing plate 6 .

[0029] Its working principle is as follows: when a glass breakage simulation test is required, the box body 1 is laid flat with the opening facing upward, the sealing plate 6 is pulled out of the box body 1, the rotating rod 22 is rotated until it is in a vertical state, the support bar 24 is fixed by the buckle 26, and then the rotating rod 22 is fixed, and then the glass frame 5 with the glass is inserted from the slot 10 of the placement rack 4 to complete the fixation of the glass frame 5. The test staff, according to the expected possible criminal tools, hits the glass on the glass frame 5 in turn to simulate glass breakage, thereby simulating the process and results of reconstructing the struck glass, providing an on-site experimental verification platform for determining the nature of the case and investigating and solving the case, facilitating objective and accurate conclusions, and can be directly placed in the box body 1 when not in use, which is convenient to carry, install and use, and provides convenience for case handlers.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plane glass breakage trace simulation test device, characterized in that: It comprises a box body with an opening on the upper side, wherein two groups of rotating frames are arranged in the box body, and a placement frame is fixedly connected between the rotating frames. A clamping structure for clamping a glass frame is arranged on the placement frame. The rotating frame can rotate to a first state in which the rotating frame, the placement frame and the clamping structure are completely entered into the box body, and a second state in which the clamping structure is extended out of the box body.

2. A plane glass breakage trace simulation test device according to claim 1, characterized in that: A sealing plate is slidably connected to the opening of the box body, one end of the sealing plate is fixedly connected to a pull rod, and two opposite surfaces of the box body are respectively provided with a wheel set and a handle.

3. The flat glass breakage trace simulation test device according to claim 1, characterized in that: The box body is fixedly connected to two strips on a side opposite to the opening, and the two rotating frames are respectively fixedly mounted on the strips.

4. A plane glass breakage trace simulation test device according to claim 3, characterized in that: The rotating frame includes a cross bar and a rotating rod, the cross bar is fixedly connected to the slat, one end of the rotating rod is rotatably connected to one end of the cross bar, the cross bar is movably connected to a support bar via a first pin shaft, the support bar is fixedly connected to a second pin shaft, the second pin shaft is slidably connected to the rotating rod, a buckle matching the second pin shaft is provided on the rotating rod, the buckle is elastically rotatably connected to the rotating rod, and after the rotating rod is rotated to a vertical position, the buckle is clamped with the second pin shaft to fix the rotating rod.

5. A plane glass breakage trace simulation test device according to claim 4, characterized in that: The cross bar and the rotating rod are both U-shaped steel parts, the supporting bars are provided in two and are symmetrically arranged, and the second pin passes through the rotating rod.

6. The flat glass breakage trace simulation test device according to claim 4, characterized in that: The rotating rod is provided with a strip groove along the length direction, and the second pin shaft passes through the strip groove and slides along the strip groove.

7. The flat glass breakage trace simulation test device according to claim 1, characterized in that: The placement rack is a U-shaped structure, the clamping structure is a symmetrical slot arranged on the placement rack, both side walls of the slot are fixed with rubber strips, and the glass frame is inserted from the upper end of the slot and clamped and fixed by the rubber strips.

8. The flat glass breakage trace simulation test device according to claim 2, characterized in that: Guide grooves are arranged on both sides of the opening of the box body, and guide strips slidably connected to the guide grooves are fixedly connected to both sides of the sealing plate.

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