Quick release mechanism and dustproof device

Abstract

The utility model relates to the technical field of intelligent mobile terminals, in particular to a quick release mechanism and a dustproof device.The quick release mechanism comprises a mounting unit which comprises a machine body, a connecting plate arranged on the machine body and a clamping groove formed in the connecting plate; the connecting unit comprises an end cover arranged on the connecting plate, a clamping assembly arranged in the clamping groove and matched with the end cover, and a sealing assembly arranged on the connecting plate and matched with the end cover. The quick release mechanism has the beneficial effects that the end cover can be easily disassembled without the help of an external tool by arranging the clamping assembly, the dustproof effect can be enhanced by matching with the sealing assembly, so that the service life of the element is prolonged, and the quick release mechanism is convenient to disassemble through the limiting assembly. And the dustproof plate slides to close and open the connecting port, so that the effect of preventing dust from entering the connecting port when the connecting port is idle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent mobile terminals, and in particular to a quick-release mechanism and a dustproof device. Background Art

[0002] The Smart Mobile Terminal Collection Device is designed to quickly collect security information from smart mobile devices to comprehensively assess the security status of the device and collect security-related data. The device can review the device's operating system, application software, network connections, and settings to identify and correct security vulnerabilities and risks, thereby helping to improve the overall security of the device.

[0003] Since the device needs to collect data for a long time, the internal components need to maintain long-term normal operation. It is very necessary to regularly inspect and remove dust from the components in the device. Existing devices usually use bolt connections, which are more troublesome during disassembly and installation. In addition, for regular inspection and dust removal, the bolts need to be turned frequently. Improper selection or use of tools can easily lead to damage to the screw heads and slippage of the threaded holes set at the connection of the device, making disassembly difficult and causing the device to be scrapped. When the connection port of the device is idle, dust and dirt will accumulate, which may cause poor connection, disconnection or short circuit. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above or the instability problem of devices connected by bolts in the prior art, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a quick release mechanism.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: including, an installation unit, including a body, a connecting plate arranged on the body, and a clamping groove arranged on the connecting plate; a connecting unit, including an end cover arranged on the connecting plate, a clamping assembly arranged in the clamping groove and cooperating with the end cover, and a sealing assembly arranged on the connecting plate and cooperating with the end cover.

[0008] As a preferred solution of the quick-release mechanism of the utility model, wherein: the clamping assembly includes a fixing pin arranged at the lower end of the end cover, a reset portion arranged at the bottom of the clamping groove, a limiting groove arranged on the inner wall of the clamping groove, a limiting portion arranged in the limiting groove, and a triangular plate arranged at the lower end of the fixing pin; the fixing pin and the clamping groove cooperate with each other, and the triangular plate and the limiting portion cooperate with each other.

[0009] As a preferred solution of the quick release mechanism of the utility model, the reset portion includes a first spring arranged at the bottom of the clamping groove, and a lifting plate arranged on the first spring; the lifting plate and the triangular plate cooperate with each other.

[0010] As a preferred solution of the quick-release mechanism of the utility model, the limiting portion includes a movable groove arranged in the inner wall of the limiting groove, a second spring arranged in the movable groove, a limiting plate arranged on the second spring, and a pressing piece arranged on both sides of the inner wall of the movable groove; the limiting plate is movably connected in the limiting groove and the clamping groove.

[0011] As a preferred solution of the quick-release mechanism of the utility model, the pressing member includes displacement grooves arranged on both sides of the inner wall of the movable groove, a pressing plate arranged between both sides of the limiting plate, and a storage groove arranged on the outside of the connecting plate; the pressing plate is movably connected in the storage groove.

[0012] As a preferred solution of the quick-release mechanism of the utility model, the sealing assembly includes a sealing groove arranged on the connecting plate, a rubber ring arranged at the bottom of the end cover, and the rubber ring is rectangular and fits the sealing groove.

[0013] The quick-release mechanism of the utility model has the following beneficial effects: by providing a snap-on assembly, the end cover can be easily removed without the aid of external tools; by cooperating with a sealing assembly, the dustproof effect can be enhanced, thereby increasing the service life of the component.

[0014] In actual use, there is still the problem of dust accumulation at the connection port, which may lead to poor connection, disconnection or short circuit.

[0015] In order to solve the above technical problems, the utility model also provides the following technical solutions: the dustproof unit includes a connecting port arranged at the front part of the body and a limiting component arranged in the connecting port.

[0016] As a preferred solution of the dustproof device described in the utility model, the limiting assembly includes a sliding groove arranged on the upper inner wall of the connecting port, a dustproof plate arranged in the sliding groove, a clamping portion arranged on the dustproof plate, and a fixing portion arranged on the inner wall of the sliding groove.

[0017] As a preferred solution of the dustproof device of the utility model, the clamping part includes a first clamping groove arranged above both sides of the dustproof plate, a second clamping groove arranged below both sides of the dustproof plate, and a positioning groove arranged on the inner wall of the connecting port.

[0018] As a preferred solution of the dustproof device of the utility model, the fixing part includes a reset groove arranged on the inner wall of the sliding groove, a third spring arranged in the reset groove, a sliding plate arranged on the third spring, and a trapezoidal block arranged on the sliding plate.

[0019] The beneficial effects of the utility model are as follows: the connection port is closed and opened by sliding the dustproof plate through the limiting component, thus achieving the effect of preventing dust from entering the connection port when the connection port is idle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is an overall schematic diagram of the quick release mechanism.

[0022] Figure 2 It is a cross-sectional schematic diagram of the quick release mechanism.

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of point A.

[0024] Figure 4 for Figure 3 Schematic diagram of the floor plan.

[0025] Figure 5 It is a schematic cross-sectional view of the pressing part of the quick release mechanism.

[0026] Figure 6 for Figure 1 An enlarged schematic diagram of point B.

[0027] Figure 7 It is a schematic diagram of the overall cutaway view of the dustproof device.

[0028] Figure 8 for Figure 7 Enlarged view of point C in the figure.

[0029] Fig. 9 This is an overall cutaway plan view of the dust prevention device. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] Example 1

[0035] Reference Figures 1 to 4 , which is the first embodiment of the utility model, and this embodiment provides a quick-release mechanism, which can achieve the effect of quickly fixing the connection between the end cover 201 and the body 101. The mounting unit 100 includes the body 101, a connecting plate 102 arranged on the body 101, and a clamping groove 103 arranged on the connecting plate 102; the connecting unit 200 includes an end cover 201 arranged on the connecting plate 102, a clamping assembly 202 arranged in the clamping groove 103 and cooperating with the end cover 201, and a sealing assembly 203 arranged on the connecting plate 102 and cooperating with the end cover 201.

[0036] Specifically, the clamping assembly 202 includes a fixing pin 202a arranged at the lower end of the end cover 201, a reset portion 202b arranged at the bottom of the clamping groove 103, a limiting groove 202c arranged on the inner wall of the clamping groove 103, and a limiting portion 202d arranged in the limiting groove 202c; the fixing pin 202a and the clamping groove 103 cooperate with each other, the triangular plate 202e and the limiting portion 202d cooperate with each other, and a connecting plate 102 is fixedly installed on the upper end of the body 101. The connecting plate 102 is in the shape of a "return" character, and an end cover 201 is arranged above the connecting plate 102, and the end cover 201 and the connecting plate 102 are adapted to each other. A clamping groove 103 is opened on the upper surface of the connecting plate 102 near both sides. The clamping groove 103 is a rectangular groove, and a fixing pin 202a is movably connected inside it. The upper ends of the two fixing pins 202a are fixedly installed on the end The lower end of the cover 201 is close to the two side positions and is aligned with the snap-in slot 103 respectively. A triangular plate 202e is fixedly installed on the lower end of the fixing pin 202a, which is in the shape of a right-angled triangle. A limiting slot 202c is opened on the inner side wall of the snap-in slot 103, and a movable slot 202d-1 is opened on the inner side wall of the limiting slot 202c. The width of the limiting slot 202c is greater than the width of the movable slot 202d-1. A plurality of second springs 202d-2 are fixedly connected to the inner side wall of the movable slot 202d-1. The other ends of the plurality of second springs 202d-2 are commonly fixedly connected to a limiting plate 202d-3. One side of the limiting plate 202d-3 presents an inclined surface near the upper end. The upper and lower ends of the limiting slot 202c are close to the other side and fit the upper and lower inner walls of the limiting slot 202c. The lower inclined surface of the triangular plate 202e and the inclined surface of one side of the inclined slot are parallel to each other.

[0037] Furthermore, the reset portion 202b includes a first spring 202b-1 arranged at the bottom of the clamping groove 103, and a lifting plate 202b-2 arranged on the first spring 202b-1; the lifting plate 202b-2 and the triangular plate 202e cooperate with each other, the bottom of the clamping groove 103 is fixedly arranged on a plurality of first springs 202b-1, and the other ends of the plurality of first springs 202b-1 are commonly fixedly connected with the lifting plate 202b-2, the lifting plate 202b-2 is a rectangular plate, and is adapted to the clamping groove 103, and slides up and down in the clamping groove 103.

[0038] When in use, the end cover 201 is moved to the top of the machine body 101, so that the fixing pins 202a on both sides of the lower end of the end cover 201 are aligned with the card slots 103 on the connecting plate 102, and then the end cover 201 is moved vertically downward so that the fixing pins 202a are inserted into the card slots 103. At this time, the limit plate 202d-3 is pushed to move outward by the extension elastic force of the second spring 202d-2, so that the limit plate 202d-3, as the fixing pin 202a moves vertically downward, the lower end inclined surface of the triangular plate 202e and the left side of the limit plate 202d-3 are aligned. The side inclined surfaces are in contact, and the triangular plate 202e applies a downward oblique force to the limit plate 202d-3. Because the limit plate 202d-3 can only slide in the limit groove 202c, the limit plate 202d-3 moves inwardly, i.e., the other side, as the fixing pin 202a moves downward, and causes the second spring 202d-2 to contract to the other side. At this time, the lower end of the triangular plate 202e will apply a downward extrusion force to the lifting plate 202b-2, and cause the first spring 202b-1 to contract downward. As the fixing pin 202a continues to move downward, the limit plate 202d-3 -3 will be in contact with the inner wall of the limiting groove 202c, and one side surface will be on the same horizontal plane with the inner wall of the snap-in groove 103. At this time, the inclined surface of the triangular plate 202e will be separated from the left inclined surface of the limiting plate 202d-3, and the lower surface of the end cover 201 and the upper surface of the connecting plate 102 will fit together, so as to achieve the effect of dustproof sealing for the internal components of the body 101. At this time, the limiting plate 202d-3 loses the oblique force from the triangular plate 202e, and moves quickly to one side through the stretching elastic force of the second spring 202d-2, and the bottom of the limiting plate 202d-3 will be in contact with the triangular plate 202e. The upper end surfaces of the plates 202e are in contact with each other, and the lifting plate 202b-2 is pushed upward by the stretching elastic force of the first spring 202b-1, exerting an upward thrust on the triangular plate 202e, so that the upper surface of the triangular plate 202e and the lower surface of the limiting plate 202d-3 are tightly fitted together. With the limiting plate 202d-3 on the triangular plate 202e, the fixing pin 202a is temporarily fixedly connected in the snap-in groove 103. At this time, the end cover 201 and the connecting plate 102 are fixedly connected together, which solves the stability of the connection between the end cover 201 and the connecting plate 102.

[0039] Example 2

[0040] Reference Figure 5, which is the second embodiment of the present utility model. Different from the previous embodiment, it solves the problem of how to quickly release the connection relationship between the end cover 201 and the connecting plate 102. The pressing member 202d-4 includes displacement grooves 202d-41 provided on both sides of the inner wall of the moving groove 202d-1, a pressing plate 202d-42 provided between both sides of the limiting plate 202d-3, and a receiving groove 202d-43 provided on the outer side of the connecting plate 102; the pressing plate 202d-42 is movably connected in the receiving groove 202d-43. Displacement grooves 202d-41 are provided on both the front and rear walls of the moving groove 202d-1, and receiving grooves 202d-43 are provided on both side surfaces of the connecting plate 102. The receiving groove 202d-43 and the displacement grooves 202d-41 on the front and rear walls of the moving groove 202d-1 communicate with each other, and a pressing plate 202d-42 is movably connected inside. The pressing plate 202d-42 is in a "C" shape, and its two sides are respectively fixedly connected to the front and rear parts of the limiting plate 202d-3, and its horizontal part is movably connected in the receiving groove 202d-43. When the end cover 201 and the connecting plate 102 are hermetically connected, the outer surface of the pressing plate 202d-42 at this time will be on the same plane as the outer surface of the connecting plate 102, which prevents the situation of accidentally touching the pressing plate 202d-42.

[0041] During use, when we need to position for repair and dust removal and need to remove the end cover 201, we can press the pressing plates 202d-42 on both sides of the connecting plate 102. The two sides of the pressing plate 202d-42 simultaneously drive the limiting plate 202d-3 to move to the other side, and the second spring 202d-2 contracts to the other side. When the inner surface of the pressing plate 202d-42 contacts the bottom of the receiving groove 202d-43, the lower surface of the limiting plate 202d-3 will then disengage from the upper surface of the triangular plate 202e. Without the limitation of the limiting plate 202d-3, through the stretching elastic force of the first spring 202b-1, the triangular plate 202e drives the fixing pin 202a to move vertically upward. Release the pressing plate 202d-42, and the limiting plate 202d-3 moves to one side through the stretching elastic force of the second spring 202d-2. One inclined surface of the limiting plate 202d-3 comes into contact with the inclined surface of the triangular plate 202e again. At this time, the limiting relationship between the triangular plate 202e and the limiting plate 202d-3 is released, and at this time, the end cover 201 can be removed, which solves the problem that the end cover 201 of the device cannot be quickly disassembled and assembled. By setting it in this way, the efficiency of regular inspection and maintenance of the device can be improved.

[0042] Embodiment 3

[0043] Refer to Figures 6 to 8, which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a dustproof device to solve the problem of dust accumulation at the connection port 301, including a dustproof unit 300, including a connection port 301 arranged at the front of the body 101, a limiting component 302 arranged in the connection port 301, the limiting component 302 includes a sliding groove 302a arranged on the upper inner wall of the connection port 301, a dustproof plate 302b arranged in the sliding groove 302a, and a dustproof plate 302b arranged in the dustproof plate 30 2b, and a fixing portion 302d arranged on the inner wall of the sliding groove 302a, a plurality of connection ports 301 are provided on the front surface of the body 101, the connection ports 301 are used to connect data cables for data transmission, a rectangular sliding groove 302a is provided on the inner wall of the connection port 301, a dustproof plate 302b is slidably connected in the sliding groove 302a, the dustproof plate 302b is rectangular in shape, and is slightly larger than the diameter of the connection port 301, so that the connection port 301 can be shielded to achieve a dustproof effect.

[0044] Further, the snap-in portion 302c includes a first card slot 302c-1 disposed above both sides of the dust-proof plate 302b, a second card slot 302c-2 disposed below both sides of the dust-proof plate 302b, and a positioning slot 302c-4 disposed on the inner wall of the connection port 301. The fixing portion 302d includes a reset slot 302d-1 disposed on the inner wall of the sliding slot 302a, a third spring 302d-2 disposed in the reset slot 302d-1, a sliding plate 302d-3 disposed on the third spring 302d-2, and a trapezoidal block 302d-4 disposed on the sliding plate 302d-3. A "C"-shaped dial is provided at the front of the dust-proof plate 302b for facilitating the拨动 of the dust-proof plate 302b. A first card slot 302c-1 is provided at a position near the upper part of both side surfaces of the dust-proof plate 302b, and a second card slot 302c-2 is provided at a position near the lower part of both side surfaces of the dust-proof plate 302b. Both the first card slot 302c-1 and the second card slot 302c-2 are trapezoidal. A rectangular positioning slot 302c-4 is provided on the bottom inner wall of the connection port 301, which is adapted to the lower end of the dust-proof plate 302b. By limiting the dust-proof plate 302b in the positioning slot 302c-4, the positioning and fixing effects are achieved. Reset slots 302d-1 are provided at the upper and lower positions on both sides of the inner wall of the sliding slot 302a. The bottom of the reset slot 302d-1 is fixedly connected with a third spring 302d-2, and the other end of the third spring 302d-2 is fixedly connected with a sliding plate 302d-3. The sliding plate 302d-3 slides in the reset slot 302d-1. A trapezoidal block 302d-4 is fixedly provided on the sliding plate 302d-3. The width of the trapezoidal block 302d-4 is smaller than the width of the sliding plate 302d-3. There are steps with a certain width on the front and rear walls and the notch of the reset slot 302d-1, which achieves the effect of limiting the sliding plate 302d-3, enabling the trapezoidal block 302d-4 to move within a certain range. The trapezoidal block 302d-4 is adapted to both the first card slot 302c-1 and the second card slot 302c-2.

[0045] It should be noted that there is an unclear word "拨动" in the original text, and a more appropriate word may need to be determined according to the actual situation to make the translation more accurate.When in use, the dustproof plate 302b is pushed upward. At this time, the first slots 302c-1 on both sides of the dustproof plate 302b and the trapezoidal blocks 302d-4 in the reset slots 302d-1 fit together. The dustproof plate 302b moves vertically upward, and the dustproof plate 302b applies an upward force to the trapezoidal blocks 302d-4. Because the trapezoidal blocks 302d-4 can only move horizontally, and the upper and lower surfaces of the trapezoidal blocks 302d-4 are inclined, the trapezoidal blocks 302d-4 on both sides move horizontally to both sides and apply pressure to the third spring 302d-2, causing it to shrink to both sides respectively. As the dustproof plate 302b continues to move upward, the second slots 302c-2 begin to contact with The notches of the reset groove 302d-1 contact each other, and then the trapezoidal block 302d-4 loses the extrusion force applied from both sides of the dustproof plate 302b, and the trapezoidal block 302d-4 is pushed to be limited in the second slot 302c-2 through the stretching elastic force of the third spring 302d-2. Because the dustproof plate 302b is made of plastic and is light in weight, the trapezoid is pushed by the elastic force of the third springs 302d-2 on both sides, so as to achieve the effect of clamping the dustproof plate 302b so that it does not move. When the connecting port 301 is idle, similarly, the dustproof plate 302b is moved vertically downward so that the lower part of the dustproof plate 302b and the positioning groove 302c-4 fit each other, thereby achieving the dustproof effect.

[0046] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0048] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A quick release mechanism, characterized in that: include, The mounting unit (100) comprises a body (101), a connecting plate (102) arranged on the body (101), and a clamping groove (103) arranged on the connecting plate (102); The connection unit (200) comprises an end cover (201) arranged on the connection plate (102), a clamping assembly (202) arranged in the clamping groove (103) and cooperating with the end cover (201), and a sealing assembly (203) arranged on the connection plate (102) and cooperating with the end cover (201).

2. The quick release mechanism according to claim 1, characterized in that: The clamping assembly (202) comprises a fixing pin (202a) arranged at the lower end of the end cover (201), a reset portion (202b) arranged at the bottom of the clamping groove (103), a limiting groove (202c) arranged on the inner wall of the clamping groove (103), a limiting portion (202d) arranged in the limiting groove (202c), and a triangular plate (202e) arranged at the lower end of the fixing pin (202a); The fixing pin (202a) and the clamping groove (103) cooperate with each other, and the triangular plate (202e) and the limiting portion (202d) cooperate with each other.

3. The quick release mechanism according to claim 2, characterized in that: The reset portion (202b) comprises a first spring (202b-1) arranged at the bottom of the clamping groove (103), and a lifting plate (202b-2) arranged on the first spring (202b-1); The lifting plate (202b-2) and the triangular plate (202e) cooperate with each other.

4. The quick release mechanism according to claim 2, characterized in that: The limiting portion (202d) comprises a movable groove (202d-1) arranged in the inner wall of the limiting groove (202c), a second spring (202d-2) arranged in the movable groove (202d-1), a limiting plate (202d-3) arranged on the second spring (202d-2), and pressing pieces (202d-4) arranged on both sides of the inner wall of the movable groove (202d-1); The limiting plate (202d-3) is movably connected in the limiting groove (202c) and the clamping groove (103).

5. The quick release mechanism according to claim 4, characterized in that: The pressing member (202d-4) comprises displacement grooves (202d-41) arranged on both sides of the inner wall of the movable groove (202d-1), a pressing plate (202d-42) arranged between both sides of the limiting plate (202d-3), and a receiving groove (202d-43) arranged on the outside of the connecting plate (102); The pressing plate (202d-42) is movably connected in the storage groove (202d-43).

6. The quick release mechanism according to claim 1, characterized in that: The sealing assembly (203) comprises a sealing groove (203a) arranged on the connecting plate (102), a rubber ring (203b) arranged at the bottom of the end cover (201), and the rubber ring (203b) is rectangular and fits the sealing groove (203a).

7. A dustproof device, comprising the quick release mechanism according to any one of claims 1 to 6, characterized in that: as well as The dustproof unit (300) comprises a connection port (301) arranged at the front of the machine body (101) and a limit assembly (302) arranged in the connection port (301).

8. The dustproof device according to claim 7, characterized in that: The limiting assembly (302) comprises a sliding groove (302a) arranged on the inner wall of the upper side of the connecting port (301), a dustproof plate (302b) arranged in the sliding groove (302a), a clamping portion (302c) arranged on the dustproof plate (302b), and a fixing portion (302d) arranged on the inner wall of the sliding groove (302a).

9. The dustproof device according to claim 8, characterized in that: The clamping portion (302c) comprises a first clamping groove (302c-1) arranged above both sides of the dustproof plate (302b), a second clamping groove (302c-2) arranged below both sides of the dustproof plate (302b), and a positioning groove (302c-3) arranged on the inner wall of the connecting port (301).

10. The dustproof device according to claim 9, characterized in that: The fixing portion (302d) comprises a reset groove (302d-1) arranged on the inner wall of the sliding groove (302a), a third spring (302d-2) arranged in the reset groove (302d-1), a sliding plate (302d-3) arranged on the third spring (302d-2), and a trapezoidal block (302d-4) arranged on the sliding plate (302d-3).

Images