On-site physical evidence board
By designing a foldable hinge structure and a split ruler assembly, the problems of inconvenience in carrying and easy damage of the evidence plaque were solved, achieving both portability and durability.
Patent Information
- Application Number
- CN202520272609.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing evidence plaques are inconvenient to carry and easily damaged, especially the ruler structure, which is prone to bending or breaking.
A foldable on-site evidence plaque was designed. The plaque body can be folded into a straight shape through a hinge and disassembly structure. The scale component is set separately and is connected stably by magnetic blocks and screw holes.
It achieves portability and durability of the evidence tag, the ruler component is not easily damaged, and it is more convenient to use.
Smart Images

Figure CN223679769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of on-site material evidence identification, and particularly relates to an on-site material evidence card. BACKGROUND
[0002] At present, in the process of criminal case investigation, the traditional plastic material evidence card is mostly of herringbone structure, the bottom color is yellow, and the font is black, which is more eye-catching in the case scene.
[0003] Some material evidence cards in the prior art are provided with a ruler on one side, such as a material evidence label card in Chinese patent CN201562403U, which comprises two label plates forming two sides of an isosceles triangle, the bottom end of the label plate extends horizontally to support a flat plate, a compass is connected to the support plate, a scale is arranged on the edge of the support plate, and the structure is simple and convenient to use, and a material evidence label card in Chinese patent CN205645088U, which comprises two label plates forming two sides of an isosceles triangle, the bottom end of the label plate extends horizontally to support a flat plate, one of the label plates is provided with a groove, a plastic layer for writing with a marker pen is arranged in the groove, a compass is arranged on the support plate, and a scale is arranged on the edge of the label card, the label card is multifunctional and widely used.
[0004] Although the above-mentioned label card has a simple structure and is convenient to use, it still has disadvantages, the herringbone structure has a fixed size and cannot be unfolded, occupies storage space, and is not convenient to carry, and the support plate is L-shaped and is prone to bending or breaking.
[0005] Therefore, in view of the above problems, the utility model provides an on-site material evidence card which is convenient to carry and not easy to damage. UTILITY MODEL CONTENT
[0006] The utility model aims at overcoming the defects of the prior art and providing an on-site material evidence card which can solve the problems of inconvenient carrying and easy damage of the material evidence card.
[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0008] The utility model discloses an on-site material evidence card, which comprises:
[0009] The card main body has a first plate body and a second plate body, and further comprises
[0010] A support plate for forming a triangular structure with the first plate body and the second plate body, and a scale assembly.
[0011] The first plate body and the second plate body are hinged, the support plate and the ruler assembly are hinged through a shaft, and the support plate is detachably connected with the second plate body through a dismounting structure at the end away from the first plate body, so that the plate body is folded into a linear structure.
[0012] Further, the first plate body is provided with a hinge point A at the top end of the rear side, the bottom end and the bottom end of the front side, and the shaft is installed on the hinge point A.
[0013] Further, the support plate is connected with the first plate body at the first end, and the tail plate capable of being arranged in parallel with the second plate body is rotatably connected at the tail end of the support plate.
[0014] Further, the dismounting structure comprises a magnetic block fixed to the rear side of the second plate body, used for adsorbing the tail plate.
[0015] Further, a groove for embedding the magnetic block is formed in the lower part of the rear side of the second plate body, and the surface of the magnetic block is recessed from the surface of the second plate body.
[0016] Further, the dismounting structure comprises a through hole formed on the second plate body and a screw hole formed on the tail plate, and a positioning rod.
[0017] Further, the ruler assembly comprises a ruler body, one side of the ruler body is connected with the first plate body, a first ruler part capable of rotating relative to the ruler body is riveted at one end of the ruler body, and a second ruler part capable of rotating relative to the ruler body is riveted at the other end of the ruler body.
[0018] Further, the first plate body and the second plate body are provided with an identification area on the front side.
[0019] Further, the font color in the identification area is black.
[0020] Further, the first plate body and the second plate body are made of yellow plastic material.
[0021] In the above technical solution, the on-site material evidence plate has the beneficial effects that:
[0022] The on-site material evidence plate designed in the utility model, the first plate body of the plate body is hinged with the second plate body, the support plate and the ruler assembly through a shaft, compared with the prior art, when the plate body is unfolded, a triangular structure is formed through the first plate body, the second plate body and the support plate, the support is stable, when the plate body is folded, the second plate body, the support plate and the ruler assembly can be folded on the side of the first plate body, and the size of the first plate body is reduced, so that the plate body is convenient to carry and store, secondly, the ruler assembly is split, and the phenomenon of bending or breaking of the ruler is effectively solved, and the plate body is convenient to use. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0024] Figure 1 It is the utility model discloses the scene material evidence card axonometric drawing;
[0025] Figure 2 It is the utility model discloses the scene material evidence card side view;
[0026] Figure 3 It is the utility model discloses the scene material evidence card retracted state axonometric drawing;
[0027] Figure 4 It is the utility model discloses the scene material evidence card first plate body structure schematic diagram;
[0028] Figure 5 It is the utility model discloses the scene material evidence card second plate body structure schematic diagram;
[0029] Figure 6 It is the utility model discloses the scene material evidence card support plate structure schematic diagram.
[0030] Mark explanation:
[0031] 1, first plate body;11, first shaft 11;12, second shaft 12;13, third shaft 13;2, second plate body;3, support plate;31, tail plate;4, scale assembly;41, ruler body;42, first ruler part;43, second ruler part;5, magnetic block;6, identification area. Specific implementation
[0032] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail in conjunction with the drawings.
[0033] Referring to Figure 1 , 2 As shown;
[0034] The utility model scene material evidence card, comprising:
[0035] Card main body, it has first plate body 1 and second plate body 2: still include
[0036] Support plate 3, it is used to form triangular structure with first plate body 1 and second plate body 2;
[0037] Scale assembly 4, the size of evidence is measured through scale assembly 4;
[0038] The first plate body 1 is hingedly connected with the second plate body 2, the support plate 3 and the ruler assembly 4, the support plate 3 is detachably connected with the second plate body 2 through a dismounting structure at the end away from the first plate body 1, so that the card body is folded into a linear structure (as shown in Figure 3 The volume is reduced to the size of the first plate body 1, and the card is convenient to store and carry.
[0039] Referring to Figure 4 The first plate body 1 is hingedly connected with the second plate body 2, the support plate 3 and the ruler assembly 4, the support plate 3 is detachably connected with the second plate body 2 through a dismounting structure at the end away from the first plate body 1, so that the card body is folded into a linear structure (as shown in
[0040] Preferably, the top end, the bottom end of the rear side and the bottom end of the front side of the first plate body 1 are provided with hinge points A, and the hinge points A are provided with shafts.
[0041] Specifically, during assembly, the top end of the rear side of the first plate body 1 is provided with a hinge point A provided with a first shaft 11, and the first plate body 1 is hingedly connected with the second plate body 2 through the first shaft 11, the bottom end of the rear side of the first plate body 1 is provided with a hinge point A provided with a second shaft 12, and the first plate body 1 is hingedly connected with the first end of the support plate 3 through the second shaft 12, so that the second plate body 2 and the first plate body 1, and the first plate body 1 and the support plate 3 are folded into parallel attitudes and are attached to the rear side of the first plate body 1, the bottom end of the front side of the first plate body 1 is provided with a hinge point A provided with a third shaft 13, and the first plate body 1 is hingedly connected with the ruler assembly 4 through the third shaft 13, so that the ruler assembly 4 can rotate around the third shaft 13 and is attached to the front side of the first plate body 1.
[0042] Referring to Figure 6 The first plate body 1 is hingedly connected with the second plate body 2, the support plate 3 and the ruler assembly 4, the support plate 3 is detachably connected with the second plate body 2 through a dismounting structure at the end away from the first plate body 1, so that the card body is folded into a linear structure (as shown in
[0043] Preferably, the first end of the support plate 3 is connected with the first plate body 1, and the tail end is rotatably connected with a tail plate 31 which is parallel to the second plate body 2, and the tail plate 31 is connected with the second plate body 2 through a dismounting structure.
[0044] Referring to Figure 5 The first plate body 1 is hingedly connected with the second plate body 2, the support plate 3 and the ruler assembly 4, the support plate 3 is detachably connected with the second plate body 2 through a dismounting structure at the end away from the first plate body 1, so that the card body is folded into a linear structure (as shown in
[0045] Preferably, the dismounting structure comprises a magnetic block 5 fixed to the rear side of the second plate body 2 and used for attracting the tail plate 31, and the tail plate 31 is a magnetic plate or an iron plate, so that the support plate 3 and the second plate body 2 are detachably connected. A recess for embedding the magnetic block 5 is formed in the lower part of the rear side of the second plate body 2, the surface of the magnetic block 5 is recessed relative to the surface of the second plate body 2, the recess is gap-fitted with the tail plate 31, and the surface of the magnetic block 5 is recessed relative to the surface of the second plate body 2, so that the position of the tail plate 31 is accurately found relative to the position of the magnetic block 5 during assembly, and the card is convenient to use.
[0046] In another preferred embodiment, the dismounting structure comprises a through hole formed on the second plate body 2 and a screw hole formed on the tail plate 31, and a positioning rod (not shown) having a screw rod portion, and when assembled, the positioning rod is screwed through the through hole on the second plate body 2 and the screw hole on the tail plate 31, so as to fix the second plate body 2 and the support plate 3. Of course, the dismounting structure can also be that a screw rod is fixed on the tail plate 31, and the second plate body 2 is formed with a through hole through which the screw rod can pass, and a nut is used to realize the connection between the second plate body 2 and the support plate 3. Of course, other clamping structures or dismounting structures in the prior art can also be used as long as they can realize the dismounting connection between the second plate body 2 and the support plate 3.
[0047] Referring to Figure 1 as shown in the drawings:
[0048] Preferably, the ruler assembly 4 comprises a ruler body 41, one side of which is connected with the first plate body 1, and one end of the ruler body 41 is riveted with a first ruler part 42 which can rotate relative to the ruler body 41, so that the ruler assembly 4 forms an L-shaped ruler. The other end of the ruler body 41 is riveted with a second ruler part 43 which can rotate relative to the ruler body 41, so as to extend the ruler body 41 and realize the extension of the length of the ruler body 41.
[0049] Preferably, the front sides of the first plate body 1 and the second plate body 2 are provided with identification areas 6, and the identification areas 6 are marked with numbers, wherein the font color in the identification areas 6 is black, and the first plate body 1 and the second plate body 2 are made of yellow plastic material.
[0050] In the above technical solution, the on-site material evidence card provided by the utility model has the following advantages:
[0051] When the card body is used, the first plate body 1, the second plate body 2 and the support plate 3 are unfolded, the card body can form a triangular structure, the ruler assembly 4 is unfolded to the side of the first plate body 1 and used in an L-shaped manner, and the ruler assembly 4 has a split structure. When not in use, the first plate body 1, the second plate body 2, the support plate 3 and the ruler assembly 4 can be folded to the side of the first plate body 1 to reduce the volume and facilitate storage and carrying. In addition, the split setting of the ruler assembly also effectively solves the problems of bending or breaking of the ruler, and the utility model is convenient to use.
[0052] The above only describes certain exemplary embodiments of the utility model by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the utility model.
Claims
1. A scene evidence card, comprising: a card main body with a first plate body (1) and a second plate body (2), characterized in that it further comprises a support plate (3) for forming a triangular structure with the first plate body (1) and the second plate body (2), and a ruler assembly (4); wherein the first plate body (1) and the second plate body (2), the support plate (3) and the ruler assembly (4) are hingedly connected by a shaft, and the end of the support plate (3) away from the first plate body (1) is detachably connected to the second plate body (2) through a dismounting structure, so that the card main body is folded into a linear structure.
2. The field evidence placard of claim 1, wherein ; The rear top end, the rear bottom end and the front bottom end of the first plate body (1) are provided with hinge points A, and the hinge points A are provided with the shaft.
3. The field evidence placard of claim 1, wherein ; The support plate (3) is connected to the first plate body (1) at the front end and is rotatably connected to a tail plate (31) at the tail end, which is arranged in parallel with the second plate body (2).
4. The field evidence placard of claim 3, wherein ; The dismounting structure comprises a magnetic block (5) fixed to the rear side of the second plate body (2) for adsorbing the tail plate (31).
5. The scene evidence card according to claim 4, characterized in that: a recess for embedding the magnetic block (5) is formed in the lower part of the rear side of the second plate body (2), and the surface of the magnetic block (5) is recessed relative to the surface of the second plate body (2).
6. The field evidence placard of claim 3, wherein ; The dismounting structure comprises a through hole formed in the second plate body (2), a screw hole formed in the tail plate (31), and a positioning rod.
7. The scene evidence card according to claim 1, characterized in that: the ruler assembly (4) comprises a ruler body (41), one side of which is connected to the first plate body (1), one end of which is riveted with a first ruler part (42) capable of rotating relative to the ruler body (41), and the other end of which is riveted with a second ruler part (43) capable of rotating relative to the ruler body (41).
8. The field evidence placard of any one of claims 1-7, wherein ; The front side of the first plate body (1) and the front side of the second plate body (2) are provided with an identification area (6).
9. The field evidence placard of claim 8, wherein ; The font color in the identification area (6) is black.
10. The field evidence placard of claim 8, wherein ; The first plate body (1) and the second plate body (2) are made of yellow plastic material.
Citation Information
Patent Citations
Object card labeling board
CN201562403U
Material evidence label cards
CN205645088U