Back shell of easy-to-disassemble and easy-to-assemble device and access control device

Abstract

The utility model provides a back shell of an easy-to-disassemble and easy-to-assemble access control device and the access control device, and relates to the technical field of access control, an assembly groove is formed in a front shell, an assembly frame is arranged around one side, close to a rear cover, of the assembly groove, a first buckle assembly is arranged on the outer side wall of the assembly frame, and a first detachable connecting part is arranged at the bottom of the assembly frame; the side wall of the rear cover is provided with a second buckle assembly matched with the first buckle assembly to limit the rear cover to move in the thickness direction of the front shell, and the side wall of the rear cover is further provided with a second detachable connecting part matched with the first detachable connecting part. The assembly groove and the assembly frame on the front shell provide an assembly path and a positioning point for the rear cover, so that the rear cover can be quickly and accurately aligned with the front shell, and the first buckle assembly and the second buckle assembly are matched with each other to limit the displacement of the rear cover, so that the assembly stability is ensured; the first detachable connecting part and the second detachable connecting part are connected through the connecting piece to complete assembly of the front shell and the rear cover, the number of screws is reduced, the connecting complexity of the front shell and the rear cover is simplified, the thickness of the back shell is reduced, and the back shell is more attractive.

Description

TECHNICAL FIELD

[0001] The utility model relates to access control technical field, concretely relates to a back shell of easy-to-disassemble and easy-to-mount device and access control device. BACKGROUND

[0002] Access control, also known as access management control system, is a new type of safety management tool developed on the basis of traditional door lock. It realizes the automation management of access channel by means of modern electronic technology, biological recognition technology and other means. For example, the access control equipment can be installed at the access port, and the access control equipment can verify the door opening permission of the access person at the access port by using the identity information of the access person. The identity information of the access person can include the identification information of the identity card of the access person, and / or the biological feature information of the access person, for example, the biological feature information can be obtained from the collected image of the access person.

[0003] The traditional access control device usually includes front display device, rear mounting cover plate and mounting base and other structures. During installation, the mounting base is first fixed, then the mounting cover plate is fixed to the fixed mounting base, and finally the front display device is installed on the rear mounting cover plate. The front and rear are fixedly connected through a large number of screws during the installation process, so that the installation and disassembly are very time-consuming and laborious. After the installation of the access control device, the overall thickness will seriously affect the appearance of the access control. UTILITY MODEL CONTENT

[0004] The utility model aims at the defects and deficiencies of the prior art, and provides a back shell of easy-to-disassemble and easy-to-mount device and access control device, which greatly simplifies the connection and disassembly of the front shell and the rear cover, and has the advantage of increasing the appearance of the utility model.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A back shell of easy-to-disassemble and easy-to-mount device is constructed, which comprises: a front shell and a rear cover.

[0007] The front shell is provided with an assembly groove inside, an assembly frame is arranged on one side of the assembly groove close to the rear cover, a first buckle assembly is arranged on the outer side wall of the assembly frame, and a first detachable connecting part is arranged at the bottom of the assembly frame.

[0008] The rear cover is provided with a second buckle assembly on the side wall, which cooperates with the first buckle assembly to limit the displacement of the rear cover along the thickness direction of the front shell, and the side wall of the rear cover is further provided with a second detachable connecting part matched with the first detachable connecting part. The first detachable connecting part and the second detachable connecting part can be detachably connected through the connecting piece.

[0009] Optionally, the first buckle assembly comprises a plurality of buckle protrusions evenly arranged on opposite two outer sides of the assembling frame, the second buckle assembly comprises a slot arranged on the inner side of the rear cover sidewall and a clamping groove in communication with the slot, and the buckle protrusions are inserted into the clamping groove through the slot to realize buckling when the assembling frame is assembled with the rear cover.

[0010] Optionally, the first detachable connecting part comprises a connecting protrusion integrally formed on the inner side of the sidewall of the assembling frame, the connecting protrusion is provided with a connecting hole on the side away from the sidewall, and the second detachable connecting part comprises a countersunk hole provided on the sidewall of the rear cover.

[0011] Optionally, one sidewall of the assembling frame is provided with a limiting plate, and the limiting plate protrudes from the sidewall at two ends.

[0012] Optionally, the sidewall of the assembling frame and / or the sidewall of the rear cover is correspondingly provided with at least one through hole.

[0013] The front shell is provided with a display screen on the side away from the rear cover, and the bottom of the front shell is provided with a light interaction device capable of emitting prompt light.

[0014] Optionally, the light interaction device comprises a light emitting assembly and a light diffusing assembly, the inner side of the bottom of the front shell is provided with a first accommodating groove and a second accommodating groove in communication with the first accommodating groove and accommodating the light diffusing assembly, and the bottom of the second accommodating groove penetrates the bottom of the front shell to realize light transmission.

[0015] Optionally, the light emitting assembly is opposite to the light diffusing assembly, the side of the light diffusing assembly close to the display screen is provided with a light reflecting part or a light absorbing part, the bottom of the light diffusing assembly is provided with a light diffusing part, and the light generated by the light emitting assembly is emitted through the light diffusing part.

[0016] Optionally, the second accommodating groove is provided with an inclined limiting clamping groove on the side close to the first accommodating groove, one side of the light diffusing assembly is provided with an inclined clamping surface for limiting displacement of the light diffusing assembly in cooperation with the inclined limiting clamping groove, the inner sidewall of the front shell is provided with a plug-in seat, and the top of the light diffusing assembly is provided with a plug-in block for plug-in with the plug-in seat.

[0017] Optionally, the light emitting assembly is provided with an adhesive for connecting the light emitting assembly with the first accommodating groove, and the light diffusing assembly is provided with an adhesive for connecting the light diffusing assembly with the second accommodating groove.

[0018] After the above technical scheme is adopted, the present application has the following beneficial effects:

[0019] The utility model provides an easy to dismantle and easy to install device's back shell, be provided with the front shell and the back cover through setting, be equipped with the assembly slot in the front shell, the assembly frame is provided with around the assembly slot and is close to the side of back cover, be provided with first buckle assembly on the outside wall of assembly frame, the bottom of assembly frame is provided with first detachable connecting portion, the side wall of back cover is provided with second buckle assembly with first buckle assembly intercoordination to limit the displacement of back cover along the thickness direction of front shell, the side wall of back cover still is provided with second detachable connecting portion with first detachable connecting portion, the assembly slot and assembly frame on the front shell provide a clear assembly path and positioning point for back cover, so that back cover can be quick and accurate with front shell alignment, and then the intercoordination of first buckle assembly and second buckle assembly further limits the displacement of back cover, ensures the accuracy and stability of assembly, finally through the first detachable connecting portion and second detachable connecting portion are connected through the connecting piece, and the assembly of front shell and back cover is completed in this way, avoids using a plurality of screws and connects front shell and back cover, greatly simplifies the complicated degree of connection and disassembly of front shell and back cover, and effectively reduces the thickness of back shell, so that the easy to dismantle and easy to install device after installation is more beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is the overall structure isometric view of the utility model;

[0022] Figure 2 It is the overall structure explosion view of the utility model;

[0023] Figure 3 It is another explosion view of the overall structure of the utility model;

[0024] Figure 4 It is the A part enlarged view of the utility model in Figure 3 ;

[0025] Figure 5 It is the isometric view of the back cover in the utility model;

[0026] Figure 6 It is the front view of the back cover in the utility model;

[0027] Figure 7 It is the front view of the overall structure of the utility model;

[0028] Figure 8 is the along Figure 7 is the schematic view of the section along

[0029] Figure 9 is the along Figure 8 is the enlarged schematic view of the part B;

[0030] Figure 10 is the along Figure 8 is the enlarged schematic view of the part B after deleting the light interaction device;

[0031] Mark explanation:

[0032] 100, front shell; 110, assembly groove; 120, assembly frame; 121, first buckle assembly; 121.1, buckle protrusion; 122, first detachable connecting part; 122.1, connecting protrusion; 122.2, connecting hole; 124, limiting plate; 130, first containing groove; 140, second containing groove; 141, inclined limiting clamping groove; 150, plug-in seat;

[0033] 200, rear cover; 210, second detachable connecting part; 211, countersunk through hole; 220, second buckle assembly; 221, insertion slot; 222, clamping groove;

[0034] 300, connecting piece;

[0035] 400, display screen;

[0036] 500, light interaction device; 510, light emitting assembly; 520, light dispersing assembly; 521, light dispersing part; 522, inclined clamping surface; 523, plug-in block;

[0037] 600, mounting part. DETAILED DESCRIPTION

[0038] The utility model will be further explained in detail below in combination with the drawings.

[0039] The embodiment is only the explanation of the utility model, and it is not the limitation of the utility model, and the person skilled in the art can make the modification without the creative contribution according to the need after reading the specification, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

[0040] The embodiment relates to an easy-to-disassemble and easy-to-assemble access control device, such as Figures 1-10As shown, it comprises: a front shell 100 and a back cover 200, the inner recess of the front shell 100 is provided with an assembly groove 110, an assembly frame 120 is arranged on the side of the assembly groove 110 close to the back cover 200, a first buckle assembly 121 is arranged on the outer side wall of the assembly frame 120, and a first detachable connecting part 122 is arranged on the bottom of the assembly frame 120; a second buckle assembly 220 is arranged on the side wall of the back cover 200, which cooperates with the first buckle assembly 121 to limit the displacement of the back cover 200 along the thickness direction of the front shell 100, a second detachable connecting part 210 is arranged on the side wall of the back cover 200, which is matched with the first detachable connecting part 122, and the first detachable connecting part 122 and the second detachable connecting part 210 can be detachably connected through a connecting piece 300; during assembly, the assembly groove 110 and the assembly frame 120 on the front shell 100 provide a clear assembly path and positioning point for the back cover 200, so that the back cover 200 can be quickly and accurately aligned with the front shell 100, then the cooperation of the first buckle assembly 121 and the second buckle assembly 220 further limits the displacement of the back cover 200, ensuring the accuracy and stability of assembly, finally the assembly of the front shell 100 and the back cover 200 is completed through the connection of the first detachable connecting part 122 and the second detachable connecting part 210 through the connecting piece 300, further, the first buckle assembly 121 comprises a plurality of buckle protrusions 121.1 arranged uniformly on the opposite two outer sides of the assembly frame 120, the second buckle assembly 220 comprises a slot 221 arranged on the inner side of the side wall of the back cover 200 and a card slot 222 communicated with the slot 221, during assembly, the buckle protrusions 121.1 are inserted into the card slot through the slot 221 and communicated with the side of the back cover close to the front shell 100 to realize buckling, referring to Figures 1-5 In the embodiment, the slot 221 and the card slot 222 are arranged from top to bottom along the length direction of the back cover 200, further, a limiting plate 124 is arranged on the top of the assembly frame 120, the length of the limiting plate 124 is greater than the width of the assembly frame 120, during use, when the back cover 200 is buckled to the assembly frame 120, the buckle protrusions 121.1 will be inserted into the slot 221, then the back cover 200 is displaced towards the top of the assembly frame 120, when the back cover 200 touches the limiting plate 124, the buckle protrusions 121.1 will be inserted into the card slot 222 at this time, so as to limit the displacement of the back cover 200 along the thickness direction of the front shell 100, finally the first detachable connecting part 122 and the second detachable connecting part 210 can be detachably connected through the connecting piece 300 to complete the connection.

[0041] Referring to Figures 1-6In the embodiment, the first detachable connecting part 122 comprises a connecting protrusion 122.1 integrally formed on the inner side of the side wall of the assembling frame 120, the bottom of the connecting protrusion 122.1 is provided with a connecting hole 122.2, the second detachable connecting part 210 comprises a countersunk through hole 211 provided on the side wall of the back cover 200, the connecting part 300 can pass through the countersunk through hole 211 and be connected with the connecting hole 122.2, further, in the embodiment, the connecting hole 122.2 is a threaded hole, the connecting part 300 is a bolt, the bolt is screwed with the threaded hole after passing through the countersunk through hole 211, so as to connect the assembling frame 120 and the back cover 200, by providing the countersunk through hole 211, the head of the bolt can be hidden, which not only improves the appearance quality of the product, but also reduces the potential safety risks caused by the protruding head of the bolt, such as scratching or collision, etc., in some embodiments, the connecting hole 122.2 can also be a plug-in hole, and the connecting part 300 is a plug strip which can be inserted into the plug-in hole.

[0042] In the embodiment, the side wall of the assembling frame 120 and / or the back cover 200 is correspondingly provided with at least one through hole, specifically, the side wall of the assembling frame 120 and the back cover 200 is correspondingly provided with three through holes, the functional modules such as sound hole, microphone and reset hole can be arranged on the inner side of the through holes, so as to further reduce the thickness of the thickness back shell.

[0043] Referring to Figures 1-10In the embodiment, the display screen 400 is arranged on the side of the front shell 100 away from the back cover 200, and the bottom of the front shell 100 is provided with the light interaction device 500 capable of emitting prompt light. The light interaction device 500 can emit light of different colors or in different flashing modes to remind the user of different information or states, such as face recognition success or face recognition failure, thereby improving the use convenience of the user. Further, the light interaction device 500 comprises the light emitting assembly 510 and the light scattering assembly 520. The bottom inner side of the front shell 100 is provided with the first accommodating groove 130 for accommodating the light emitting assembly 510 and the second accommodating groove 140 in communication with the first accommodating groove 130 for accommodating the light scattering assembly 520. The bottom of the second accommodating groove 140 penetrates the bottom of the front shell 100 to realize light transmission. Specifically, by arranging the first accommodating groove 130 and the second accommodating groove 140, the internal space of the bottom of the front shell 100 is fully utilized, so that the light emitting assembly 510 and the light scattering assembly 520 can be orderly and compactly installed, thereby avoiding layout disorder caused by insufficient space. The light emitting assembly 510 in the first accommodating groove 130 is responsible for generating light, and the light is scattered by the light scattering assembly 520 in the second accommodating groove 140, so that the light can be evenly and softly emitted, thereby avoiding visual discomfort caused by too bright or too concentrated light. The second accommodating groove 140 penetrates the inner and outer sides of the bottom of the front shell 100, and the sealing performance of the accommodating groove can be ensured by adding a sealing strip or sealing glue, thereby preventing moisture and dust from entering and improving the durability and reliability of the product. In the embodiment, the light emitting assembly 510 can be an LED lamp.

[0044] Referring to Figures 1-10 In the embodiment, the light emitting assembly 510 faces the light scattering assembly 520. The light scattering assembly 520 is provided with a light reflecting part or a light absorbing part on the side close to the display screen 400. The bottom of the light scattering assembly 520 is provided with a light scattering part 521. The light generated by the light emitting assembly 510 is emitted through the light scattering part 521. Further, the light reflecting part or the light absorbing part can avoid the upper part of the light scattering assembly from affecting the display effect of the display screen due to light leakage. The light in the light scattering assembly is scattered and converged and emitted from the bottom. The light reflecting part or the light absorbing part is a black adhesive film arranged on the back of the display screen. The black adhesive film can block light. The light scattering part 521 can emit light from the bottom and the side away from the back cover 200, thereby realizing bottom light scattering and reducing the mutual influence of the light emitting part and the display screen light effect, and the light display effect is better. In the embodiment, the light scattering part 521 and the light scattering assembly 520 are made of the same material. The light scattering assembly 520 can be a light guide plate.

[0045] Referring to Figures 1-10In the embodiment, the second accommodating groove 140 is provided with an inclined limiting clamping groove 141 on one side close to the first accommodating groove 130, one side of the astigmatism assembly 520 is provided with an inclined clamping surface 522 matched with the inclined limiting clamping groove 141 to limit displacement of the astigmatism assembly 520, the inner side wall of the front shell 100 is provided with a plug-in seat 150, the top of the astigmatism assembly 520 is provided with a plug-in block 523 for plugging with the plug-in seat 150, further, the inclined limiting clamping groove 141 is matched with the inclined clamping surface 522 on the astigmatism assembly 520, effectively limiting displacement of the astigmatism assembly 520, the plug-in block 523 on the top of the astigmatism assembly 520 is plugged with the plug-in seat 150 on the inner side wall of the front shell 100, further enhancing the fixing effect of the astigmatism assembly 520, preventing shaking or falling of the astigmatism assembly 520 during use.

[0046] Referring to Figures 1-10 In the embodiment, the light-emitting assembly 510 is provided with an adhesive (not shown in the figure) for connecting with the first accommodating groove 130, the astigmatism assembly 520 is provided with an adhesive (not shown in the figure) for connecting with the second accommodating groove 140, the adhesives are used for connection, without complex mechanical fixing parts or additional mounting steps, only need to place the assembly in the corresponding accommodating groove and smear an appropriate amount of adhesive, and ensure that the light transmission is uniform and beautiful, and the dispensing reduces assembly and gap, saves labor and is more beautiful, in the embodiment, the adhesive can be glue.

[0047] Referring to Figures 1-10 In the embodiment, the rear cover 200 is provided with a plurality of mounting parts 600 on one side away from the front shell 100 for connecting with external equipment, further, the mounting parts 600 can be hanging grooves, threaded holes and the like.

[0048] The above is only used to illustrate the technical scheme of the utility model and is not limited, other modifications or equivalent replacements of the technical scheme of the utility model made by the ordinary skilled in the art should be covered in the claim range of the utility model.

Claims

1. A back shell of a quick detachable and mountable device, characterized in that, include: Front cover (100) and rear cover (200); A front shell (100) is provided with an assembly groove (110) inside the front shell (100). An assembly frame (120) is provided around the assembly groove (110) on the side near the rear cover (200). A first buckle assembly (121) is provided on the outer side wall of the assembly frame (120). A first detachable connecting part (122) is provided at the bottom of the assembly frame (120). The rear cover (200) has a second snap-fit ​​assembly (220) on its side wall that cooperates with the first snap-fit ​​assembly (121) to restrict the displacement of the rear cover (200) along the thickness direction of the front shell (100). The rear cover (200) also has a second detachable connection part (210) that is adapted to the first detachable connection part (122). The first detachable connection part (122) and the second detachable connection part (210) can be detachably connected by a connector (300).

2. A back shell for a device that is easy to disassemble and assemble according to claim 1, characterized in that, The first snap-fit ​​assembly (121) includes a plurality of snap-fit ​​protrusions (121.1) evenly arranged on opposite outer sides of the assembly frame (120). The second snap-fit ​​assembly (220) includes a slot (221) disposed on the inner side of the side wall of the rear cover (200) and a slot (222) communicating with the slot (221). During assembly, the snap-fit ​​protrusions (121.1) are inserted into the slot (222) through the slot (221) to achieve snap-fit.

3. The back shell of an easy-on, easy-off device of claim 1, wherein, The first detachable connecting part (122) includes a connecting protrusion (122.1) integrally formed on the inner side of the side wall of the assembly frame (120). The connecting protrusion (122.1) has a connecting hole (122.2) on the side away from the side wall. The second detachable connecting part (210) includes a countersunk through hole (211) provided on the side wall of the rear cover (200). The connector (300) can pass through the countersunk through hole (211) and connect to the connecting hole (122.2).

4. The back shell of claim 1, wherein, A limiting plate (124) is provided on one side wall of the assembly frame (120), and the two ends of the limiting plate (124) protrude from the side wall.

5. A back shell for a device that is easy to disassemble and easy to assemble, according to any one of claims 1-4, characterized in that, The sidewalls of the assembly frame (120) and / or the rear cover (200) are provided with at least one through hole.

6. A removable and installable access control device, characterized by comprising: The device includes a back cover for the easy-to-remove and easy-to-install device as described in any one of claims 1-5, and a display screen (400) disposed on the side of the front cover (100) away from the rear cover (200), wherein the bottom of the front cover (100) is provided with a light interaction device (500) that can emit prompt light.

7. A door entry system as claimed in claim 6, characterised in that, The light interaction device (500) includes a light-emitting component (510) and a light-diffusing component (520). The bottom inner side of the front shell (100) is provided with a first receiving groove (130) for accommodating the light-emitting component (510) and a second receiving groove (140) connected to the first receiving groove (130) for accommodating the light-diffusing component (520). The bottom of the second receiving groove (140) penetrates the bottom of the front shell (100) to achieve light transmission.

8. A door entry system according to claim 7, wherein the door entry system is arranged to be mounted on a door leaf of a door. The light-emitting assembly (510) is opposite to the light-diffusing assembly (520), the light-diffusing assembly (520) is provided with a light-reflecting part or a light-absorbing part on one side close to the display screen (400), the bottom of the light-diffusing assembly (520) is provided with a light-diffusing part (521), and the light generated by the light-emitting assembly (510) is emitted through the light-diffusing part (521).

9. A door entry system according to claim 7, wherein the door entry system is arranged to be easily removable from the door frame. The second accommodating groove (140) is provided with an inclined limiting clamping groove (141) on one side close to the first accommodating groove (130), one side of the light-diffusing assembly (520) is provided with an inclined clamping surface (522) matched with the inclined limiting clamping groove (141) to limit displacement of the light-diffusing assembly (520), and the inner side wall of the front shell (100) is provided with a plug-in seat (150), and the top of the light-diffusing assembly (520) is provided with a plug-in block (523) for plugging with the plug-in seat (150).

10. A door entry system as claimed in claim 8, wherein the door entry system is adapted to be mounted on a door frame. The light-emitting assembly (510) is provided with an adhesive for connecting with the first accommodating groove (130), and the light-diffusing assembly (520) is provided with an adhesive for connecting with the second accommodating groove (140).

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