Laser evidence investigation instrument with anti-falling buffer structure

Abstract

The utility model relates to the technical field of material evidence investigation, disclose laser material evidence investigation appearance with anti -drop buffer structure, including fixed block, the outside fixed connection of fixed block is in the outside rear end of protection shell, the outside fixed connection of fixed block has fixed pipe, the outside sliding connection of fixed pipe has sliding pipe, the inside of sliding pipe places a plurality of steel ball, the outside front end fixed connection of sliding pipe has outer spring, the outside fixed connection of outer spring has sliding ring. In the utility model, the function of protecting the lens is realized through the thread connection of protection cover in the outside of protection shell, the restraint of steel ball is removed through the sliding of sliding ring, sliding pipe is pushed, recess of fixed pipe is stuck with steel ball, sliding ring is loosened, sliding ring is reset under the action of outer spring, so that the equipment is fixed connection, compared with prior art, the effect of quick disassembly equipment is played.

Description

Technical Field

[0001] This utility model relates to the field of physical evidence investigation technology, and in particular to a laser physical evidence investigation instrument with a drop-proof buffer structure. Background Technology

[0002] Ordinary laser evidence examination instruments use lasers of specific wavelengths as light sources to excite fluorescence in physical evidence such as sweat and fibers, assisting in the discovery and extraction of traces. They are often equipped with observation mirrors and used for preliminary examination of physical evidence at criminal investigation scenes. Shock-proof and cushioning structures are mostly made of elastic materials, which absorb impact force through deformation and reduce the impact of external forces on internal items. They are commonly found in protective designs.

[0003] In the existing technology, some laser evidence investigation instruments with anti-drop buffer structures include a laser emission module and a power supply unit. The anti-drop structure is mostly an elastic buffer layer on the outer shell and an internal shock-absorbing bracket. Some have protective protrusions at the edges and corners. The laser module emits a specific wavelength laser to excite the fluorescence of evidence such as sweat and fibers at the scene. The anti-drop structure weakens the impact force of the drop through the deformation of the buffer layer and the energy absorption of the bracket, thus protecting the internal components.

[0004] In existing technologies, the laser modules of some laser evidence examination instruments with shock-proof and buffer structures are easily damaged, making them difficult to store quickly after use and prone to impacts. Therefore, a laser evidence examination instrument with a shock-proof and buffer structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a laser evidence examination instrument with a drop-proof buffer structure, aiming to improve the problem that the laser module of some laser evidence examination instruments with drop-proof buffer structures is easily damaged and difficult to store quickly after use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A laser evidence examination instrument with a drop-proof and buffer structure includes a protective shell, a fixing mechanism fixedly connected to the outer rear end of the protective shell, a connector fixedly connected to the outer rear end of the fixing mechanism, and a drop-proof mechanism fixedly connected to the outer side of the connector. The fixing mechanism includes a fixing block, which is fixedly connected to the outer rear end of the protective shell. A fixing tube is fixedly connected to the outer side of the fixing block. A sliding tube is slidably connected to the outer side of the fixing tube. Multiple steel balls are placed inside the sliding tube. An outer spring is fixedly connected to the outer front end of the sliding tube. A sliding ring is fixedly connected to the outer side of the outer spring. The sliding ring is slidably connected to the outer side of the sliding tube. An elastic component is placed inside the sliding tube. As a further description of the above technical solution: The anti-fall mechanism includes a fixing strap, which is externally and fixedly connected to the rear side of the connector. A shoulder pad is externally and fixedly connected to the fixing strap. A female buckle is externally and fixedly connected to the fixing strap. A female buckle is detachably connected to the inside of the female buckle. A fixing rod is internally and fixedly connected to the inside of the female buckle. A movable strap is externally provided on the fixing rod. A sliding buckle is externally connected to the movable strap. The movable strap is externally and fixedly connected to the outside of the connector. As a further description of the above technical solution: A handle is fixedly connected to the top of the protective shell, a gasket is fixedly connected to the outside of the handle, a controller is fixedly connected to the outside of the handle, and a supplementary light is slidably connected to the front end of the handle. As a further description of the above technical solution: A lens is fixedly connected to the inner front end of the protective shell, and a protective cover is threadedly connected to the outer front end of the protective shell. A connecting rope is provided on the outside of the protective cover. As a further description of the above technical solution: A connecting ring is fixedly connected to the bottom of the connecting rope, and the inside of the connecting ring is fixedly connected to the front end of the outer side of the protective shell; As a further description of the above technical solution: The elastic component includes two retainers, one of which is fixedly connected to the inside of the sliding tube and the other of which is fixedly connected to the inside of the fixed tube. A sliding rod is slidably connected inside the elastic component, a top block is fixedly connected to the outside of the sliding rod, and an inner spring is sleeved on the outside of the sliding rod. As a further description of the above technical solution: The protective shell is detachably connected to a protective pad, and the protective pad is fixedly connected to a plurality of hooks and straps. As a further description of the above technical solution: Each of the hooks is fixedly connected to a wool strip, and the outer side of the pad is fixedly connected to a plurality of connecting blocks.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the protective cover is threaded onto the outside of the protective shell to protect the lens. The sliding ring releases the steel ball by sliding, pushes the sliding tube, and thus the groove of the fixed tube locks the steel ball. The sliding ring is released and reset under the action of the outer spring, thereby fixing the equipment. Compared with the prior art, this has the effect of quickly disassembling the equipment.

[0008] 2. In this utility model, the groove inside the female buckle locks the two sides of the male buckle, thereby connecting the fixed belt and the movable belt. By adjusting the length of the movable belt passing through the outside of the fixed rod, the length of the strap can be adjusted. The woolen strap passes through the inside of the connecting block and adheres to the outside of the hook strap, thereby fixing the pad. Compared with the prior art, this has the effect of buffering the damage caused by the collision of the equipment. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of the laser evidence examination instrument with a drop-proof buffer structure proposed in this utility model; Figure 2 This is a schematic diagram of the handle of the laser evidence investigation instrument with a drop-proof and buffer structure proposed in this utility model. Figure 3 This is a schematic diagram of the sliding ring of the laser evidence investigation instrument with a drop-proof and buffer structure proposed in this utility model. Figure 4 This is a schematic diagram of the female buckle of the laser evidence investigation instrument with a drop-proof and buffer structure proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0010] Legend: 1. Protective shell; 2. Fixing mechanism; 21. Fixing block; 22. Fixing tube; 23. Sliding tube; 24. Outer spring; 25. Sliding ring; 26. Elastic component; 261. Fixer; 262. Sliding rod; 263. Top block; 264. Inner spring; 27. Handle; 28. Washer ring; 29. ​​Controller; 210. Fill light; 211. Lens; 212. Protective cover; 213. Connecting rope; 214. Connecting ring; 215. Steel ball; 3. Connector; 4. Anti-fall mechanism; 41. Fixing strap; 42. Shoulder pad; 43. Female buckle; 44. Female buckle; 45. Fixing rod; 46. Movable strap; 47. Sliding buckle; 48. Protective pad; 49. Connecting block; 410. Hook strap; 411. Wool strap. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] A laser forensic examination instrument with a shock-proof and cushioning structure, as referenced Figures 1 to 3The device includes a protective shell 1. A fixing mechanism 2 is fixedly connected to the rear end of the protective shell 1 to achieve stable connection and quick disassembly of various components. A connector 3 is fixedly connected to the rear end of the fixing mechanism 2, and an anti-drop mechanism 4 is fixedly connected to the outside of the connector 3. The fixing mechanism 2 includes a fixing block 21, which is externally fixedly connected to the rear end of the protective shell 1, forming a stable connection between the fixing mechanism 2 and the protective shell 1. A fixing tube 22 is externally fixedly connected to the fixing block 21, providing a sliding track and connection base for the externally sliding tube 23. Multiple steel balls 215 are placed inside the sliding tube 23, which play a positioning and clamping role in the relative movement of the fixing tube 22 and the sliding tube 23. An external spring 24 is fixedly connected to the front end of the sliding tube 23, which can provide support for the sliding ring 25. The outer spring 24 is fixedly connected to a sliding ring 25, which can control the binding state of the steel ball 215 by sliding. The outer sliding ring 25 is slidably connected to the outside of the sliding tube 23. An elastic component 26 is placed inside the sliding tube 23. The elastic component 26 includes two retainers 261, one of which is fixedly connected to the inside of the sliding tube 23 and the other is fixedly connected to the inside of the fixed tube 22. A sliding rod 262 is slidably connected inside the elastic component 26. A top block 263 is fixedly connected to the outside of the sliding rod 262. The top block 263 can limit the sliding range of the sliding rod 262 and transmit the force. An inner spring 264 is sleeved on the outside of the sliding rod 262. The sliding rod 262 can slide relative to the retainer 261 to cooperate with the inner spring 264 to achieve buffering. Specifically, when the fixing mechanism 2 is working, the fixing block 21 securely connects the fixing tube 22 to the protective shell 1. The sliding tube 23 slides along the fixing tube 22, pushing the sliding ring 25 to compress the outer spring 24, releasing the restraint on the steel ball 215. After the sliding tube 23 moves to the target position, the steel ball 215 is inserted into the corresponding slot, the sliding ring 25 is released, and the outer spring 24 resets and pushes it to re-restrain the steel ball 215. At the same time, the fixing device 261 inside the sliding tube 23 and the fixing tube 22 restricts the sliding rod 262. When the sliding rod 262 slides, the top block 263 cooperates with the inner spring 264 to buffer, achieving stable connection and quick disassembly.

[0013] Reference Figure 2 and Figure 3A handle 27 is fixedly connected to the top of the protective shell 1, which makes it easy for users to hold the device. A pad ring 28 is fixedly connected to the outside of the handle 27, which increases grip comfort and prevents slipping. A controller 29 is fixedly connected to the outside of the handle 27, which is used to control various functions of the device. A supplementary light 210 is slidably connected to the front end of the handle 27, which can be slidably adjusted to provide auxiliary lighting. A lens 211 is fixedly connected to the front end of the inside of the protective shell 1, which is used for the optical observation function of the device. A protective cover 212 is threadedly connected to the front end of the outside of the protective shell 1. A connecting rope 213 is provided on the outside of the protective cover 212, which can prevent the protective cover 212 from being lost. A connecting ring 214 is fixedly connected to the bottom of the connecting rope 213, and the inside of the connecting ring 214 is fixedly connected to the front end of the outside of the protective shell 1, so that the connecting rope 213 and the protective shell 1 form a reliable connection. Specifically, the handle 27 on the top of the protective case 1 is for the user to hold, the pad ring 28 enhances the grip comfort and anti-slip properties, the device can be controlled by the controller 29 on the handle 27, the fill light 210 at the front can slide to adjust its position to provide auxiliary lighting, the lens 211 at the front of the protective case 1 enables optical observation, the protective cover 212 with external thread connection can tighten to protect the lens 211, the connecting rope 213 is connected to the protective case 1 through the connecting ring 214 to prevent the protective cover 212 from falling off, and the cooperation of each component improves the ease of operation and protection.

[0014] Reference Figure 1 , Figure 4 and Figure 5 The anti-fall mechanism 4 includes a fixing strap 41, which is externally fixedly connected to the rear side of the connector 3. The fixing strap 41 provides convenience for the user to carry the device and securely connects the fixing strap 41 to the connector 3. A shoulder pad 42 is externally fixedly connected to the fixing strap 41, which reduces shoulder pressure and improves carrying comfort. A female buckle 43 is externally fixedly connected to the fixing strap 41, and a female buckle 44 is detachably connected inside the female buckle 43. The female buckle 43 and the female buckle 44 cooperate to connect the fixing strap 41 to the movable strap 46. A fixing rod 45 is internally fixedly connected to the female buckle 44, and a movable strap 46 is provided on the outside of the fixing rod 45. The movable strap 46 is adjustable in length. To adapt to different user needs, the movable belt 46 is externally slidably connected with a sliding buckle 47, which can fix the movable belt 46 again to enhance stability. The movable belt 46 is externally fixedly connected to the outside of the connector 3. The protective shell 1 is externally detachably connected with a pad 48, which can directly buffer the impact of external bumps on the protective shell 1. The pad 48 is externally fixedly connected with multiple hooks 410 and multiple connecting blocks 49. Each hook 410 is externally fixedly connected with a hair strap 411. The hair strap 411 passes through the inside of the connecting block 49, so that the hooks 410 and the hair strap 411 stick to each other to fix the pad 48. Specifically, when the anti-fall mechanism 4 is working, the fixing strap 41 is connected to the device through the connector 3, the shoulder pad 42 reduces the burden on the shoulders, the female buckle 43 and the female buckle 44 are fastened together, the fixing rod 45 allows the movable strap 46 to pass through, the sliding buckle 47 slides to fix the adjusted length, the protective pad 48 is installed on the outside of the protective shell 1, the hair strap 411 passes through the connecting block 49 and is attached to the hook strap 410 to fix the protective pad 48, buffering the impact. All components work together to achieve anti-fall and portability.

[0015] The implementation principle of this application embodiment is as follows: First, by adjusting the length of the movable belt 46 passing through the fixed rod 45, the overall length of the device is adjusted. Pressing the two sides of the sub-buckle 44 slides the sub-buckle 44 into the female buckle 43, so that the hole of the female buckle 43 locks the two sides of the sub-buckle 44, thereby connecting the fixed belt 41 and the movable belt 46 to form a closed loop, so that the whole device is diagonally draped over the user's shoulder. The shoulder pad 42 fixed outside the fixed belt 41 can increase the user's comfort. By sliding the sliding ring 25 forward, multiple steel balls 215 are released from restraint. Under the elastic force of the elastic component 26, the sliding tube 23 is pushed away from the outside of the fixed tube 22. As the sliding tube 23 slides outward, multiple steel balls 215 move outward and are released from the external groove of the fixed tube 22. The two top blocks 263 begin to separate and stop contact, so that the device fixed by the protective shell 1 is released from the fixed tube 22, thereby allowing the front end device to be taken out separately. After the equipment is used, slide the sliding ring 25 again to push the sliding tube 23, so that multiple steel balls 215 slide into the groove outside the fixed tube 22. Release the sliding ring 25, and the multiple steel balls 215 are locked by the elastic force of the outer spring 24, thereby fixing the equipment and reducing the probability of collisions. Multiple tapes 411 pass through the connecting block 49 and are attached to the hook 410, so that the protective pad 48 is detachably connected to the outside of the protective shell 1, thereby cushioning the equipment when it is bumped and reducing damage. When the equipment is running, the supplementary light 210 provides supplementary lighting to the object. The protective cover 212 is threadedly connected to the outside of the protective shell 1, thereby protecting the lens 211.

[0016] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser evidence examination instrument with a drop-proof buffer structure, comprising a protective shell (1), characterized in that: The outer rear end of the protective shell (1) is fixedly connected to a fixing mechanism (2), the outer rear end of the fixing mechanism (2) is fixedly connected to a connector (3), and the outer side of the connector (3) is fixedly connected to a drop protection mechanism (4). The fixing mechanism (2) includes a fixing block (21), which is fixedly connected to the outer rear end of the protective shell (1). A fixing tube (22) is fixedly connected to the outer side of the fixing block (21). A sliding tube (23) is slidably connected to the outer side of the fixing tube (22). Multiple steel balls (215) are placed inside the sliding tube (23). An outer spring (24) is fixedly connected to the outer front end of the sliding tube (23). A sliding ring (25) is fixedly connected to the outer side of the outer spring (24). The sliding ring (25) is slidably connected to the outer side of the sliding tube (23). An elastic component (26) is placed inside the sliding tube (23).

2. The laser evidence examination instrument with a shock-proof buffer structure according to claim 1, characterized in that: The anti-fall mechanism (4) includes a fixing strap (41), which is externally fixedly connected to the rear side of the connector (3). A shoulder pad (42) is fixedly connected to the outside of the fixing strap (41). A female buckle (43) is fixedly connected to the outside of the fixing strap (41). A female buckle (44) is detachably connected inside the female buckle (43). A fixing rod (45) is fixedly connected inside the female buckle (44). A movable strap (46) is provided outside the fixing rod (45). A sliding buckle (47) is slidably connected to the outside of the movable strap (46). The outside of the movable strap (46) is fixedly connected to the outside of the connector (3).

3. The laser evidence examination instrument with a shock-proof buffer structure according to claim 1, characterized in that: The top of the protective shell (1) is fixedly connected to a handle (27), the outside of the handle (27) is fixedly connected to a washer (28), the outside of the handle (27) is fixedly connected to a controller (29), and the front end of the handle (27) is slidably connected to a supplementary light (210).

4. The laser evidence examination instrument with a shock-proof buffer structure according to claim 3, characterized in that: The protective shell (1) has a lens (211) fixedly connected to its inner front end, and a protective cover (212) is threadedly connected to its outer front end. A connecting rope (213) is provided on the outside of the protective cover (212).

5. The laser evidence examination instrument with a shock-proof buffer structure according to claim 4, characterized in that: The bottom of the connecting rope (213) is fixedly connected to a connecting ring (214), and the inside of the connecting ring (214) is fixedly connected to the front end of the outer side of the protective shell (1).

6. The laser evidence examination instrument with a shock-proof buffer structure according to claim 1, characterized in that: The elastic component (26) includes two retainers (261), one of which is fixedly connected to the inside of the sliding tube (23), and the other of which is fixedly connected to the inside of the fixed tube (22). A sliding rod (262) is slidably connected inside the elastic component (26), a top block (263) is fixedly connected to the outside of the sliding rod (262), and an inner spring (264) is sleeved on the outside of the sliding rod (262).

7. The laser evidence examination instrument with a shock-proof buffer structure according to claim 2, characterized in that: The protective shell (1) is detachably connected to a pad (48), and the pad (48) is fixedly connected to a plurality of hooks (410).

8. The laser evidence examination instrument with a shock-proof buffer structure according to claim 7, characterized in that: The outer sides of the multiple hooks (410) are fixedly connected with a hair strap (411), and the outer sides of the pad (48) are fixedly connected with multiple connecting blocks (49).

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