An automatic reciprocating structure, and a destruction device including the same

CN224854303UActive Publication Date: 2026-10-16DEPAY INFORMATION TECH GRP (MOUNT HUANGSHAN) CO LTD
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Patent Information

Application Number
CN202522376013.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2026-10-16
Estimated Expiration
2035-11-10

AI Technical Summary

Technical Problem

其收集框结构与齿轮之间设有多个铰接结构,最终导致收集框自身难以单独取出,其内的电子产品碎片只能通过例如舀出、挖出的方式进行出料,这反而会降低粉碎操作的效率和安全性,碎片相对地容易洒落

Benefits of technology

[0022] First, in this automatic reciprocating moving structure, the crushing box unit is engaged with the horizontal support rod and the horizontal spring frame unit, and is driven at the position of the moving force plate. Ultimately, this structure can take into account both the effectiveness of the reciprocating moving function and the feasibility of the overall removal function, ensuring that the material discharge action of the electronic equipment destruction operation is relatively more efficient and convenient.

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Abstract

The application belongs to the technical field of electronic equipment destroying device, and particularly relates to an automatic reciprocating moving structure and a destroying device comprising the structure. The automatic reciprocating moving structure comprises a chassis unit, a transverse support rod arranged on the chassis unit, a crushed material box body unit arranged on the lower surface of the transverse support rod, a transverse spring frame body unit arranged on the chassis unit, a clamping frame body unit arranged on the crushed material box body unit and used for connecting the transverse spring frame body unit, and a moving stress plate arranged on the outer surface of the crushed material box body unit.
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Description

Technical Field

[0001] This application belongs to the technical field of electronic device destruction devices, and particularly relates to an automatic reciprocating moving structure and a destruction device including the structure. Background Technology

[0002] Electronic device destruction equipment generally refers to a type of specialized device used to safely and thoroughly destroy electronic devices or their storage media. The purpose of electronic device destruction operations is primarily to prevent the leakage of sensitive data and to ensure that the equipment cannot be repaired and used.

[0003] The aforementioned destruction devices are widely used by governments, the military, financial institutions, corporate IT departments, and data security companies. The aforementioned storage media include, for example, hard drives, solid-state drives, USB flash drives, and SD cards.

[0004] Existing common electronic device destruction devices mainly consist of a housing, pressure rollers, a drive motor, and a receiving bin. The electronic device or storage medium passes downwards through two pressure rollers, achieving basic crushing and destruction. The crushed material in the receiving bin can then be recycled and reused.

[0005] Compared to more advanced electronic equipment destruction devices, one direction for structural improvement is to change the originally fixed receiving box to a mobile one, making it less likely for pulverized materials to accumulate inside. With the standard that pulverized materials cannot fall off the receiving box, the aforementioned mobile receiving box can increase its effective single-time receiving capacity, extend the cycle of removing and replacing the receiving box, and greatly improve the practicality and convenience of the destruction device.

[0006] For example, Chinese utility model patent with authorization announcement number CN222956479U and authorization announcement date of June 10, 2025 discloses a safety device for the destruction process of electronic products. Its main structural components include: destruction box, destruction channel, crushing roller, gear, grating, controller, and transmission toothed belt.

[0007] The main advantage of the safety device in this utility model patent is that the gear can indirectly drive the collection frame to move back and forth in the horizontal direction, thereby shaking the electronic product fragments evenly and preventing the fragments from accumulating. Otherwise, the accumulation phenomenon would reduce the collection and storage capacity of the collection frame.

[0008] However, in actual use, this safety device still has at least the following impractical problems, specifically: The collection frame has multiple hinges between itself and the gears, which makes it difficult to remove the collection frame itself. The electronic product fragments inside can only be discharged by means of scooping or digging, which reduces the efficiency and safety of the crushing operation and makes the fragments relatively easy to spill. Utility Model Content

[0009] This application provides an automatic reciprocating moving structure, the technical problem to be solved by which the receiving structure of the electronic equipment destruction device has both suitable reciprocating moving function and convenient overall removal function.

[0010] In addition, this application also provides a destruction device including the above-mentioned automatic reciprocating moving structure.

[0011] The technical solution adopted by this application to solve the above problems is: an automatic reciprocating moving structure, including a base frame unit, a transverse support rod disposed on the base frame unit, a shredder box unit whose lower surface is engaged with the transverse support rod, a transverse spring frame unit disposed on the base frame unit, an engaging frame unit disposed on the shredder box unit and used to connect the transverse spring frame unit, and a moving force-bearing plate disposed on the outer surface of the shredder box unit.

[0012] A further preferred technical solution is that the base frame unit includes a base plate and two vertical plates respectively disposed at both ends of the base plate for mounting the transverse support rod and the transverse spring frame unit.

[0013] A further preferred technical solution is that the crushing box unit includes a cuboid box with the engaging frame unit on its outer side, an integral channel disposed on the lower surface of the cuboid box for engaging the transverse support rod, and a U-shaped handle disposed on the outer side of the cuboid box.

[0014] A further preferred technical solution is that the transverse spring frame unit includes a transverse spring with one end disposed on the vertical plate, and an end plate disposed on the other end of the transverse spring and used to connect the locking frame unit.

[0015] A further preferred technical solution is that the locking frame unit includes a protruding plate disposed on the outer side of the crushing box unit, a connecting plate disposed on the protruding plate and parallel to the vertical plate and used to fit the end plate, and a transverse side cut disposed on the connecting plate and used to engage the transverse spring.

[0016] A further preferred technical solution is that the base frame unit further includes a positioning base plate disposed on the vertical plate, which is lower than the horizontal support rod and is used to support the end plate.

[0017] A further preferred technical solution includes a rotating plate unit disposed on the upper surface of the base plate and used to rotate the movable force plate.

[0018] A further preferred technical solution is that the rotating plate unit includes a drive motor disposed on the upper surface of the base plate, a rotating ring disposed on the drive motor, and a radial protrusion disposed on the rotating ring and used to actuate the moving force plate.

[0019] A further preferred technical solution is that the base frame unit also includes a mounting positioning port disposed on the base plate.

[0020] A destruction device including the aforementioned automatic reciprocating moving structure includes a device base plate, a positioning post disposed on the device base plate and used for insertion into the mounting positioning port, and a height-limiting elastic protective plate disposed on the positioning post and used for circumferential blocking and limiting of the radial protrusion plate by rotating the radial protrusion plate.

[0021] The beneficial effects of this application include at least the following five points.

[0022] First, in this automatic reciprocating moving structure, the crushing box unit is engaged with the horizontal support rod and the horizontal spring frame unit, and is driven at the position of the moving force plate. Ultimately, this structure can take into account both the effectiveness of the reciprocating moving function and the feasibility of the overall removal function, ensuring that the material discharge action of the electronic equipment destruction operation is relatively more efficient and convenient.

[0023] Secondly, the engagement state between the locking frame unit and the transverse spring frame unit combines high efficiency in establishing engagement, stability in maintaining engagement, and ease of disengagement. Specifically, the transverse spring is not easily bent or deformed, the end plate is not easily tilted downwards, and the transverse side cut can be easily and conveniently connected to the transverse spring.

[0024] Third, the automatic reciprocating moving structure, through the rotating plate unit, can achieve a relatively simple and efficient toggle-type reciprocating moving effect, ensuring that electronic equipment debris in the debris box unit does not easily accumulate, and ultimately increasing the actual effective filling capacity of the debris box unit.

[0025] Fourth, the destruction device can easily and efficiently align the crushing box unit and the pressure roller cylinder through the insertion relationship between the positioning column and the installation positioning port, ensuring the high efficiency of the crushing falling action.

[0026] Fifth, the destruction device, through the circumferential blocking effect of the height-limiting elastic protective plate on the radial protrusion plate, ensures that the radial protrusion plate is located in a relatively low position when the shredder unit is installed, preventing the moving force plate from hitting the radial protrusion plate, thereby protecting the entire rotating plate unit, especially the drive motor, and ultimately improving the safety and practicality of the destruction device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this application.

[0028] Figure 2 This is a schematic diagram of the location and structure of the base frame unit in this application.

[0029] Figure 3 This is a structural schematic diagram of the crushing box unit in this application.

[0030] Figure 4 This is a schematic diagram showing the position of the base plate used for positioning in this application.

[0031] Figure 5 This is a schematic diagram of the starting position of the force plate used for moving the radial protruding plate in this application.

[0032] Figure 6 This is a schematic diagram of one end point of the force plate used for moving the radial protrusion plate in this application.

[0033] Figure 7 This is a schematic diagram of the destruction device in this application.

[0034] Figure 8 This is a schematic diagram showing the location and shape of the elastic protective plate used for height restriction in this application.

[0035] Figure 9 This is a schematic diagram showing the position of the radial protrusion plate above the transverse support rod in this application. At this time, the crushing box unit should not be installed because the moving load-bearing plate and the cuboid box are prone to bumping into the radial protrusion plate.

[0036] Figure 10 This is a schematic diagram showing the location and shape of the receiving groove for the deformation of the elastic plate in this application.

[0037] Figure 11 This is a schematic diagram of the position and structure of the horizontal spring frame unit.

[0038] The meanings of the markings in the diagram are as follows.

[0039] Rotation direction a, reset direction b, installation direction c, deformation position of the height-limiting elastic protective plate d; Base frame unit 1, transverse support rod 2, crushing box unit 3, transverse spring frame unit 4, snap-fit ​​frame unit 5, moving force plate 6, rotating plate unit 7; Base plate 101, vertical plate 102, positioning base plate 103, mounting positioning port 104; 301 rectangular box, 302 integral channel, 303 U-shaped handle; Transverse spring 401, end plate 402; Protruding plate 501, connecting plate 502, transverse side cut 503; Drive motor 701, rotating ring 702, radial protrusion plate 703, pad 704; Device base plate 8, positioning column 9, height limiting elastic protective plate 10, elastic plate deformation receiving groove 11, pressure roller cylinder 12, pressure roller 13. Detailed Implementation

[0040] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0041] like Figures 1-11 As shown, an automatic reciprocating moving structure includes a base frame unit 1, a transverse support rod 2 disposed on the base frame unit 1, a shredder box unit 3 whose lower surface is engaged with the transverse support rod 2, a transverse spring frame unit 4 disposed on the base frame unit 1, a engaging frame unit 5 disposed on the shredder box unit 3 and used to connect the transverse spring frame unit 4, and a moving force-bearing plate 6 disposed on the outer surface of the shredder box unit 3.

[0042] In this embodiment, the main material of the structure is engineering plastic, and its specific structural components include: a base frame unit 1, two transverse support rods 2, a scrap box unit 3, two transverse spring frame units 4, two locking frame units 5, and a movable force-bearing plate 6.

[0043] One method to achieve the "automatic reciprocating movement" effect is to first move the moving force plate 6 by a cylinder, motor, or other equipment, and then reset it through the elastic force of the transverse spring frame unit 4. The reciprocating movement of the shredder unit 3 on demand and at intervals ensures that the shredder material destroyed by the electronic equipment within is thoroughly shaken, preventing large accumulations and ultimately increasing the effective shredder loading capacity of the shredder unit 3 per load, thus extending the replacement cycle of the shredder unit 3.

[0044] Correspondingly, the transverse support rod 2 is fixedly connected to the base frame unit 1, and the crushing box unit 3, the locking frame unit 5, and the moving force plate 6 are integrally formed. One end of the transverse spring frame unit 4 is fixedly connected to the base frame unit 1 and locked to the locking frame unit 5. The crushing box unit 3 is mounted on the two transverse support rods 2 and locked appropriately with the latter, so that the crushing box unit 3 has both the stability of reciprocating movement and the convenience of loading and unloading operations.

[0045] In normal use, the pressure roller cylinder 12 is fully aligned with the shredder unit 3, with the former on top and the latter on the bottom, and the vertical distance between them is relatively small, preventing shredder from falling directly onto the device base plate 8. When the structure is used for centralized, one-time shredder removal, the disposal operation needs to be temporarily stopped. At this time, the shredder unit 3, along with the shredder inside, can be removed together and emptied out in one go, without having to scoop out the shredder multiple times, which is more convenient and faster.

[0046] The base frame unit 1 includes a base plate 101 and two vertical plates 102 respectively disposed at both ends of the base plate 101 for mounting the transverse support rod 2 and the transverse spring frame unit 4.

[0047] In this embodiment, the base plate 101 and the vertical plate 102 are both rectangular in shape, the overall shape of the base unit 1 is "U-shaped", the height of the horizontal support rod 2 is higher than that of the base plate 101, and the two horizontal support rods 2 are set at the same height, and each of them is fixed to the two vertical plates 102 at both ends.

[0048] The crushing box unit 3 includes a cuboid box 301 with the engaging frame unit 5 on its outer side, an integral channel 302 on the lower surface of the cuboid box 301 for engaging the transverse support rod 2, and a U-shaped handle 303 on the outer side of the cuboid box 301.

[0049] In this embodiment, the term "integrated" in the integral channel 302 refers to the fact that its starting point and ending point are two opposite outer surfaces of the cuboid box 301, and its length direction is parallel to the long side direction of the cuboid box 301.

[0050] Furthermore, the method for removing the scrap bin unit 3 along with the scrap inside is roughly as follows: First, the operator should come to the same side of the U-shaped handle 303 and then grasp the U-shaped handle 303; Second, the operator should lift the cuboid box 301 upwards appropriately to separate the integral channel 302 from the horizontal support rod 2 and release the locking state; Third, bring the U-shaped handle 303 close to the operator, i.e., in the outward direction. At this time, the locking frame unit 5 is simultaneously released from the locking state with the horizontal spring frame unit 4, and the scrap box unit 3 along with the scrap inside can be taken out together, clearing all the scrap in one go. Fourth, with the scrap box unit 3 slightly higher than the horizontal support rod 2, push the empty scrap box unit 3 inward. Since the engagement state of the locking frame unit 5 and the horizontal spring frame unit 4 has sufficient tolerance space, the above-mentioned engagement state can be effectively established. Finally, lower the scrap box unit 3 to engage the overall channel 302 with the horizontal support rod 2, thus completing the entire scrap removal operation.

[0051] On the other hand, the cross-sectional shape of the top surface of the integral channel 302 is arc-shaped, and ball bearings can be installed on it to reduce the reciprocating resistance between it and the transverse support rod 2.

[0052] The horizontal spring frame unit 4 includes a horizontal spring 401 with one end disposed on the vertical plate 102, and an end plate 402 disposed on the other end of the horizontal spring 401 and used to connect to the locking frame unit 5.

[0053] In this embodiment, the connection method at the end of the transverse spring 401 can be welding, screwing, snap-fitting, or bonding, and the end plate 402 is rectangular in shape. The two transverse spring frame units 4 are located on opposite sides of the cuboid box 301.

[0054] When the cuboid box 301 is located directly below the pressure roller cylinder 12, i.e. when the crushed material receiving operation is in progress, the two transverse springs 401 have similar and relatively small stretching amplitudes.

[0055] The locking frame unit 5 includes a protruding plate 501 disposed on the outer side of the crushing box unit 3, a connecting plate 502 disposed on the protruding plate 501 and parallel to the vertical plate 102 and used to fit the end plate 402, and a transverse side cutout 503 disposed on the connecting plate 502 and used to engage the transverse spring 401.

[0056] In this embodiment, the overall shape of the protruding plate 501 and the connecting plate 502 in a top view is "L-shaped"; the overall shape of the connecting plate 502 combined with the lateral side cutout 503 in a front view is a lateral "U-shaped".

[0057] When the structure is in normal use, the connecting plate 502 always abuts against the end plate 402 to ensure the stability of the connection state between the transverse spring frame unit 4 and the locking frame unit 5.

[0058] When the structure is in normal use, the transverse spring 401 passes through the transverse side cutout 503, with the former being relatively thinner and the latter relatively wider, to avoid significant wear between the two. Correspondingly, the aforementioned size difference is also one of the feasible ways for the engaging frame unit 5 to relatively easily engage the transverse spring frame unit 4, corresponding to the aforementioned "sufficient tolerance space".

[0059] The base frame unit 1 also includes a positioning base plate 103 disposed on the vertical plate 102, which is lower than the horizontal support rod 2 and is used to support the end plate 402.

[0060] In this embodiment, since the transverse spring 401 is arranged laterally, and the weight of the end plate 402 cannot be ignored, after a period of use, the non-fixed end of the transverse spring 401, i.e., one end of the end plate 402, will droop, ultimately causing: The difficulty of connecting the transverse side cut 503 to the transverse spring 401 is increased; The elastic strength of the transverse spring 401 decreased significantly.

[0061] Conversely, this is the function of the positioning base plate 103. It consists of two horizontal rectangular plates, the length of which is greater than the length of the area where the vertical plate 102 moves back and forth, thus always supporting the vertical plate 102. For details, please refer to the appendix. Figure 2 .

[0062] Generally, the positioning base plate 103 should not be a long plate with two vertical plates 102 connected at both ends, because the above-mentioned cylinder, motor and other structures should be set at the lower position of the cuboid box 301, which should not affect the driving effect of the moving force plate 6.

[0063] The direct function of the positioning base plate 103 is to consistently support the vertical plate 102 and prevent the horizontal spring 401 from bending or deforming. Correspondingly, the height of the positioning base plate 103 is lower than that of the horizontal support rod 2, ensuring that the cuboid box 301 will not bump into the positioning base plate 103.

[0064] The automatic reciprocating moving structure also includes a rotating plate unit 7 disposed on the upper surface of the base plate 101 and used to actuate the moving force plate 6 by rotation.

[0065] In this embodiment, the rotating plate unit 7 corresponds to the driving effect of the moving force plate 6 in the above-mentioned motor mode, which is the power source for the automatic reciprocating movement of the crushing box unit 3.

[0066] The rotating plate unit 7 includes a drive motor 701 disposed on the upper surface of the base plate 101, a rotating ring 702 disposed on the drive motor 701, and a radial protrusion 703 disposed on the rotating ring 702 and used to actuate the moving force plate 6.

[0067] In this embodiment, the drive motor 701 is a commercially available low-speed, high-torque motor. With the help of a common controller, the moving force plate 6 can be moved as needed and in both directions, so that the accumulated scraps in the cuboid box 301 are shaken and smoothed, thereby increasing the actual effective loading capacity of the cuboid box 301.

[0068] The movable force-bearing plate 6 and the radial protruding plate 703 are both located between the two transverse support rods 2. When the radial protruding plate 703 passes through a specific portion of the upper semicircle of its rotation path, it can effectively move the movable force-bearing plate 6. For details, please refer to the appendix. Figure 5 and 6 .

[0069] In addition, the rotating plate unit 7 may also include a pad 704 disposed on the base plate 101 and used to mount the drive motor 701, thereby ensuring that there is a sufficient and suitable contact dimension between the radial protrusion plate 703 and the moving force plate 6.

[0070] The base frame unit 1 also includes a mounting positioning port 104 disposed on the base plate 101.

[0071] In this embodiment, the installation direction c of the structure within the destruction device is downward. There are two mounting positioning ports 104. When both are correctly inserted into the positioning structure within the destruction device, the cuboid box 301 is positioned directly below the pressure roller cylinder 12, ensuring comprehensive material receiving operation.

[0072] A destruction device including the above-mentioned automatic reciprocating moving structure includes a device base plate 8, a positioning post 9 disposed on the device base plate 8 and used for inserting into the mounting positioning port 104, and a height-limiting elastic protective plate 10 disposed on the positioning post 9 and used for circumferential blocking and limiting the radial protrusion plate 703 by rotating the radial protrusion plate 703.

[0073] In this embodiment, the base plate 8 and the pressure roller cylinder 12 are both made of galvanized steel or engineering plastic. The positioning post 9 and the height-limiting elastic protective plate 10 are fully installed by means of snapping or screwing the positioning post 9 onto the base plate 8.

[0074] The overall structure consisting of the positioning post 9 and the height-limiting elastic protective plate 10 mainly has the following functions: First, the first and second positioning posts 9 are inserted into the second mounting positioning ports 104, thus completely fixing the installation position of the automatic reciprocating moving structure and ensuring the high efficiency of the alignment and receiving action at the cuboid box 301. Secondly, the mounting positioning port 104 is relatively centered on the base plate 101, that is, located on the left and right sides of the drive motor 701. This makes the height-limiting elastic protective plate 10 located on the rotation path of the radial protrusion plate 703. Ultimately, the radial protrusion plate 703 can be positioned manually or by motor drive at the lower part of the circular rotation path between the two height-limiting elastic protective plates 10, preventing the cuboid box 301 and / or the moving force plate 6 from impacting the radial protrusion plate 703 during installation and movement. Ultimately, this mainly protects the drive motor 701.

[0075] For details on the protective effect of the height-limiting elastic protective plate 10 on the drive motor 701, please refer to the appendix. Figure 8 , 9 .

[0076] Furthermore, the positioning post 9 is also provided with a groove 11 for receiving the deformation of the elastic plate, making it easier to fit the mounting positioning port 104 onto the positioning post 9. Alternatively, it allows for a relatively high dimensional accuracy between the mounting positioning port 104 and the cross-section of the positioning post 9, which is more practical; see the appendix for details. Figure 10 .

[0077] Finally, the structure of the destruction device includes a rectangular box, a pressure roller cylinder 12 located on the top plate of the box, and two pressure rollers 13 located inside the pressure roller cylinder 12. The box is provided with an openable door for taking out and putting back the aforementioned automatic reciprocating moving structure.

[0078] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. An automatic reciprocating movement structure, characterized in that: It includes a base frame unit (1), a transverse support rod (2) disposed on the base frame unit (1), a shredder box unit (3) with its lower surface engaged on the transverse support rod (2), a transverse spring frame unit (4) disposed on the base frame unit (1), a engaging frame unit (5) disposed on the shredder box unit (3) and used to connect the transverse spring frame unit (4), and a movable force plate (6) disposed on the outer surface of the shredder box unit (3).

2. The automatic reciprocating moving structure according to claim 1, characterized in that: The base frame unit (1) includes a base plate (101) and two vertical plates (102) respectively disposed at both ends of the base plate (101) for mounting the transverse support rod (2) and the transverse spring frame unit (4).

3. The automatic reciprocating moving structure according to claim 1, characterized in that: The crushing box unit (3) includes a cuboid box (301) with the engaging frame unit (5) on its outer side, an integral channel (302) on the lower surface of the cuboid box (301) for engaging the transverse support rod (2), and a U-shaped handle (303) on the outer side of the cuboid box (301).

4. The automatic reciprocating moving structure according to claim 2, characterized in that: The transverse spring frame unit (4) includes a transverse spring (401) with one end set on the vertical plate (102), and an end plate (402) set on the other end of the transverse spring (401) for connecting the locking frame unit (5).

5. The automatic reciprocating moving structure according to claim 4, characterized in that: The locking frame unit (5) includes a protruding plate (501) disposed on the outer side of the crushing box unit (3), a connecting plate (502) disposed on the protruding plate (501) and parallel to the vertical plate (102) and used to fit the end plate (402), and a transverse side cutout (503) disposed on the connecting plate (502) and used to engage the transverse spring (401).

6. The automatic reciprocating moving structure according to claim 4, characterized in that: The base unit (1) also includes a positioning base plate (103) disposed on the vertical plate (102) and lower in height than the horizontal support rod (2) and used to support the end plate (402).

7. The automatic reciprocating moving structure according to claim 2, characterized in that: It also includes a rotating plate unit (7) disposed on the upper surface of the base plate (101) and used to actuate the movable force plate (6) by means of rotation.

8. The automatic reciprocating moving structure according to claim 7, characterized in that: The rotating plate unit (7) includes a drive motor (701) disposed on the upper surface of the base plate (101), a rotating ring (702) disposed on the drive motor (701), and a radial protrusion plate (703) disposed on the rotating ring (702) and used to actuate the moving force plate (6).

9. The automatic reciprocating moving structure according to claim 8, characterized in that: The base unit (1) also includes a mounting positioning port (104) provided on the base plate (101).

10. A destruction device comprising the automatic reciprocating moving structure as described in claim 9, comprising a device base plate (8), characterized in that: It also includes a positioning post (9) disposed on the device base plate (8) and used for inserting into the mounting positioning port (104), and a height-limiting elastic guard plate (10) disposed on the positioning post (9) and used for circumferential blocking and limiting the radial protrusion plate (703) by rotating the radial protrusion plate (703).

Citation Information

Patent Citations

  • Safety device for destroying process of electronic products

    CN222956479U