Waterproof structure and intelligent door lock

Abstract

The utility model discloses a waterproof structure and an intelligent door lock, the waterproof structure comprises a lock frame, a PCB, an ultrasonic support, an ultrasonic device and a waterproof breathable net, and the lock frame is provided with an accommodating space and a through hole communicated with the accommodating space; the PCB is mounted on the inner wall of the accommodating space; one end of the ultrasonic support is located in the containing space and installed on the PCB, the other end of the ultrasonic support extends into the through hole, a containing bin is defined by the ultrasonic support and the PCB, a sound guide hole is formed in the ultrasonic support in a penetrating mode, one end of the sound guide hole is communicated with the containing bin, and the other end of the sound guide hole is communicated with the through hole; the ultrasonic device is located in the storage bin, and the ultrasonic device is installed on the PCB and electrically connected with the PCB; the waterproof breathable net is located in the through hole, and the waterproof breathable net is installed on the outer wall of the ultrasonic support and covers the sound guide hole. The waterproof structure of the intelligent door lock can block water stains invading from the external environment, has waterproof and dustproof functions, and enhances the use safety of an ultrasonic device.

Description

TECHNICAL FIELD

[0001] The utility model relates to door lock structure technical field especially, relates to a waterproof structure and intelligent door lock. BACKGROUND

[0002] In daily life, people must use all kinds of access control lock everywhere, from the control mode of access control lock, mainly have key, password, magnetic card and IC card, and from the control mode of the access control lock that has currently, there is certain security risk, key, password and magnetic card are easy to copy, steal, and the security of IC card is higher, but also easy to lose. Later, technical personnel invented the biometric technology, and biometric technology will become an important change in access control industry in the coming years, biometric technology is to identify personal identity by computer using the inherent physiological characteristics or behavior characteristics of human body, biometric technology has the advantages of not easy to forget and lose, not easy to counterfeit and be stolen, and use at any time and anywhere.

[0003] The existing biometric device based on voice recognition applied in access control lock is generally an ultrasonic device connected with a PCB, but in the use process, since the ultrasonic device is often exposedly installed on the user's door panel, cannot block the water stains intruding from the external environment, does not have the waterproof function, thereby affecting the safety of the use of the ultrasonic device. UTILITY MODEL CONTENTS

[0004] The utility model provides a waterproof structure and intelligent door lock, it is in order to solve the existing biometric device based on voice recognition applied in access control lock generally is the ultrasonic device connected with the PCB, in the use process, since the ultrasonic device is often exposedly installed on the user's door panel, cannot block the water stains intruding from the external environment, does not have the waterproof function, thereby affecting the safety of the use of the ultrasonic device technical problem.

[0005] The utility model provides a waterproof structure, it is including:

[0006] Lock frame, the lock frame is equipped with containing space and the through -hole that communicates with containing space;

[0007] PCB board, the PCB board is installed on the inner wall of containing space;

[0008] Ultrasonic support, one end of ultrasonic support is located in containing space and is installed on the PCB board, and the other end is inserted into the through -hole, and the ultrasonic support and the PCB board enclose and form a receiving bin, the ultrasonic support is equipped with a sound guide hole, one end of the sound guide hole communicates with the receiving bin, and the other end communicates with the through -hole;

[0009] An ultrasonic device is located in the receiving cavity, the ultrasonic device is mounted on the PCB board and electrically connected with the PCB board;

[0010] A waterproof and breathable mesh is located in the through hole, the waterproof and breathable mesh is mounted on the outer wall of the ultrasonic support and covers the sound guide hole.

[0011] Further, the inner diameter of the sound guide hole gradually increases from one end close to the ultrasonic device to the other end close to the waterproof and breathable mesh.

[0012] Further, the ultrasonic support includes a base and a first boss protruding from the base, the base is connected with the PCB board, part of the first boss is located in the through hole, the ultrasonic support is further provided with a first recess, the first recess is arranged on the base, the sound guide hole penetrates the base and the first boss in sequence from the inner wall of the first recess, the inner wall of the first recess and the PCB board form the receiving cavity, and the waterproof and breathable mesh is mounted on the first boss.

[0013] Further, the waterproof structure further includes an ultrasonic steel mesh, the ultrasonic steel mesh is provided with a second recess and a plurality of openings, the ultrasonic steel mesh includes a support plate and a second boss protruding from the support plate, the second recess is arranged on the side of the support plate away from the second boss, the openings penetrate the second boss from the inner wall of the second recess, the support plate is clamped between the base and the lock frame, the second boss extends into the through hole, the first boss extends into the second recess, and the waterproof and breathable mesh is clamped between the first boss and the inner wall of the second recess.

[0014] Further, the waterproof structure further includes UV glue, one side of the base facing the support plate is provided with an annular glue groove, and the UV glue is located in the glue groove and bonded with the support plate.

[0015] Further, the waterproof structure further includes an anti-static cloth located in the containing space, one end of the anti-static cloth is provided with a positioning hole, the other end of the anti-static cloth is connected with the PCB board, the anti-static cloth is sleeved on the second boss through the positioning hole, and the anti-static cloth is clamped between the support plate and the lock frame.

[0016] Further, the waterproof structure further includes an annular back adhesive, the inner wall of the containing space is further provided with an annular positioning groove, the positioning groove is coaxially arranged with the through hole and communicates with the through hole, the back adhesive is mounted in the positioning groove, and the anti-static cloth and the ultrasonic steel mesh are connected with the back adhesive.

[0017] Further, the waterproof structure further comprises double-sided adhesive tape located in the accommodating space, and the ultrasonic support is fixed to the PCB through the double-sided adhesive tape.

[0018] Further, the lock frame comprises a middle frame and a panel, the panel is detachably mounted on the middle frame and forms the accommodating space together with the middle frame, the through hole is arranged on the panel, and the PCB is mounted on the middle frame.

[0019] The utility model further provides an intelligent door lock which comprises the waterproof structure as described above.

[0020] Compared with the prior art, the utility model has at least the following beneficial effects:

[0021] The lock frame is provided with an accommodating space and a through hole in communication with the accommodating space, the ultrasonic support is mounted on the PCB in the accommodating space and forms a storage bin together with the PCB, the ultrasonic support is provided with a sound guide hole in communication with the storage bin, the ultrasonic device is mounted on the PCB in the storage bin, and the waterproof and breathable net is mounted on the outer wall of the ultrasonic support and covers the sound guide hole, so that the water stains intruding from the external environment can be blocked, the waterproof and dustproof functions are achieved, the safety of the ultrasonic device is enhanced, the waterproof structure of the intelligent door lock is simple in structure, can be quickly disassembled, is convenient for later maintenance, and is suitable for wide range of promotion. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Part structure schematic view of the waterproof structure provided by the utility model embodiment;

[0023] Figure 2 For Figure 1 explosion Figure 1 ;

[0024] Figure 3 For Figure 1 explosion Figure 2 ;

[0025] Figure 4 For Figure 1 sectional view;

[0026] Figure 5 Structure schematic view of the waterproof structure provided by the utility model embodiment after removing the lock frame;

[0027] Figure 6 Structure schematic view of the ultrasonic support provided by the utility model embodiment Figure 1 ;

[0028] Figure 7 Structure schematic view of the ultrasonic support provided by the utility model embodiment Figure 2 ;

[0029] Figure 8 The structure diagram of the ultrasonic steel net provided by the embodiment of the utility model Figure 1 ;

[0030] Figure 9 The structure diagram of the ultrasonic steel net provided by the embodiment of the utility model Figure 2 ;

[0031] Figure 10 The structure diagram of the panel provided by the embodiment of the utility model.

[0032] In the figure,

[0033] 10, lock frame; 11, through hole; 12, positioning groove; 13, panel; 20, PCB board; 21, limiting groove; 30, ultrasonic support; 31, sound guide hole; 32, base; 321, glue injection groove; 33, first boss; 34, first recess; 35, limiting rod; 40, ultrasonic device; 50, waterproof and breathable net; 60, storage bin; 70, ultrasonic steel net; 71, second recess; 72, opening; 73, support plate; 74, second boss; 80, anti-static cloth; 81, positioning hole; 90, back glue; 100, double-sided adhesive. DETAILED DESCRIPTION

[0034] In the following, the utility model is further described in combination with the drawings and the specific implementation, and it should be explained that, under the premise of not conflicting, the following described each embodiment or each technical feature can be combined to form a new embodiment.

[0035] Please refer to Figures 1 to 7The utility model discloses an anti -water structure mainly applied to intelligent door lock, and the anti -water structure includes lock frame 10, PCB board 20, ultrasonic support 30, ultrasonic device 40 and waterproof breathable net 50, lock frame 10 is equipped with containing space and the through -hole 11 of containing space intercommunication, PCB board 20 installs on the inner wall of containing space, one end of ultrasonic support 30 is located in containing space and installs on PCB board 20, and the other end is inserted in the through -hole 11, and ultrasonic support 30 and PCB board 20 enclose and form a storage compartment 60, and the storage compartment 60 is part of containing space, and ultrasonic support 30 is equipped with a sound guide hole 31, and one end of sound guide hole 31 is communicated with the storage compartment 60, and the other end is communicated with the through -hole 11, and ultrasonic device 40 is located in the storage compartment 60, and ultrasonic device 40 installs on PCB board 20 and is electrically connected with PCB board 20, and the sound emitted by ultrasonic device 40 can be transmitted to the outside of lock frame 10 through sound guide hole 31 and the through -hole 11, and waterproof breathable net 50 is located in the through -hole 11, and waterproof breathable net 50 installs on the outer wall of ultrasonic support 30 and covers sound guide hole 31, can the water stain of the invasion in outside environment is blocked, has waterproof and dustproof function, and the security of ultrasonic device 40 use is strengthened.

[0036] In some embodiments, the inner diameter of the sound guide hole 31 gradually increases from one end close to the ultrasonic device 40 to the other end close to the waterproof breathable net 50 to form a horn shape, increasing the sound intensity emitted by the ultrasonic device 40 and improving the sound signal of the ultrasonic device 40.

[0037] In this embodiment, the ultrasonic support 30 includes a base 32 and a first boss 33 protruding from the base 32. The base 32 is connected to the PCB board 20. Part of the first boss 33 is located in the through-hole 11. The ultrasonic support 30 further includes a first recess 34. The first recess 34 is located on the side of the base 32 away from the first boss 33. The sound guide hole 31 penetrates the base 32 and the first boss 33 in sequence from the inner wall of the first recess 34. The sound guide hole 31 is in communication with the first recess 34. The inner wall of the first recess 34 and the PCB board 20 enclose the storage compartment 60. The waterproof breathable net 50 is installed on the first boss 33 to cover the sound guide hole 31 on the first boss 33.

[0038] The ultrasonic support 30 further includes a plurality of limiting rods 35. Each limiting rod 35 is protruding from the side of the base 32 away from the first boss 33. The PCB board 20 is provided with a plurality of limiting grooves 21. Each limiting rod 35 is respectively clamped in each limiting groove 21 to realize the pre-installation of the ultrasonic support 30 on the PCB board 20.

[0039] Please further refer to Figures 3 to 10In the embodiment, the waterproof structure further comprises an ultrasonic steel mesh 70, the ultrasonic steel mesh 70 is provided with a second cavity 71 and a plurality of spaced-apart openings 72, the ultrasonic steel mesh 70 comprises a support plate 73 and a second boss 74 protruding on the support plate 73, the second cavity 71 is arranged on the side of the support plate 73 away from the second boss 74, the openings 72 pass through the second boss 74 from the inner wall of the second cavity 71, each opening 72 is in communication with the second cavity 71, the diameter of the opening 72 is 0.75 mm, the support plate 73 is clamped between the base 32 and the lock frame 10, the second boss 74 extends into the through hole 11, the first boss 33 extends into the second cavity 71, and the waterproof and breathable mesh 50 is clamped between the top of the first boss 33 and the inner wall of the second cavity 71, so that the sensitivity of ultrasonic triggering is met, and large-particle dust is prevented from entering the ultrasonic area, thereby achieving good waterproof and dustproof functions.

[0040] In some embodiments, the waterproof structure further comprises UV glue, one side of the base 32 towards the support plate 73 is provided with an annular glue groove 321, the base 32 is stepped, the first boss 33 is coaxially arranged with the annular glue groove 321, the outer diameter of the first boss 33 is smaller than the inner diameter of the annular glue groove 321, and the first boss 33 is spaced apart from the annular glue groove 321, the glue groove 321 cleverly saves layout space, the UV glue is located in the glue groove 321 and is bonded with the support plate 73, so as to realize the sealed connection between the ultrasonic support 30 and the ultrasonic steel mesh 70.

[0041] In the embodiment, the waterproof structure further comprises an anti-static cloth 80 located in the accommodating space, one end of the anti-static cloth 80 is provided with a positioning hole 81, the other end is connected with the grounding area on the PCB 20, the anti-static cloth 80 is sleeved on the second boss 74 through the positioning hole 81, and the anti-static cloth 80 is clamped between the support plate 73 and the lock frame 10. The anti-static cloth 80 can be bonded on the support plate 73, and the anti-static cloth 80 can guide static electricity to the grounding area on the PCB 20, so that the ultrasonic device 40 is free from static electricity interference.

[0042] In some embodiments, the waterproof structure further comprises an annular adhesive 90, the inner wall of the accommodating space is further provided with an annular positioning groove 12, the positioning groove 12 is in communication with the through hole 11 and coaxially arranged, the adhesive 90 is installed in the positioning groove 12 and bonded on the ultrasonic steel mesh 70, so as to realize the sealed connection between the ultrasonic steel mesh 70 and the lock frame 10, and the anti-static cloth 80 can be connected with the adhesive 90, so as to prevent external water or dust from entering.

[0043] In some embodiments, the waterproof structure further comprises double-sided adhesive tape 100 located in the accommodating space, and the ultrasonic support 30 is fixed to the PCB 20 by the double-sided adhesive tape 100 to realize sealed connection between the ultrasonic support 30 and the PCB 20, complete waterproof of the ultrasonic support 30 on the PCB 20, and solve the problem of mis-touching caused by uneven installation of the ordinary ultrasonic support 30, and avoid the problem that the ultrasonic device 40 fails under a force of more than 150g.

[0044] The lock frame 10 comprises a middle frame and a panel 13, the panel 13 is detachably mounted on the middle frame and forms the accommodating space together with the middle frame, the through hole 11 and the positioning groove 12 are both arranged on the panel 13, and the PCB 20 is mounted on the inner wall of the middle frame.

[0045] The utility model discloses still a kind of intelligent door lock, including the waterproof structure as described above.

[0046] The assembly method of the intelligent door lock comprises the following steps:

[0047] Step S101, assemble the ultrasonic device 40 and the ultrasonic support 30, first, an ultrasonic device 40 patch is pasted on the PCB 20, at the same time, waterproof double-sided adhesive tape 100 is pasted on the PCB 20, and finally the ultrasonic support 30 is fixed by waterproof double-sided adhesive tape 100 and the PCB 20, that is, the waterproof of the ultrasonic device 40 on the PCB is completed.

[0048] Step S102, assemble the ultrasonic steel mesh 70 and the waterproof breathable mesh 50, inject waterproof UV glue into the glue injection groove 321 of the ultrasonic support 30 in the above step S101 and solidify, the waterproof breathable mesh 50 is pasted on the top of the ultrasonic support 30, and finally the ultrasonic steel mesh 70 is adhered to the ultrasonic support 30 by the above-mentioned UV glue, at this time, the waterproof breathable mesh 50 is clamped between the first boss 33 of the ultrasonic support 30 and the inner wall of the ultrasonic steel mesh 70.

[0049] Step S103, assemble the anti-static cloth 80, one end of the anti-static cloth 80 is sleeved on the second boss 74 of the ultrasonic steel mesh 70 in the above step S102 through the positioning hole 81 thereon, and the other end of the anti-static cloth 80 is connected with the grounding area on the PCB 20.

[0050] Step S104, assemble the lock frame 10, first, the back adhesive 90 is mounted in the positioning groove 12 of the panel 13, then the PCB 20 in the above step S103 is fixed in the middle frame of the lock frame 10, and finally the panel 13 is mounted on the middle frame, and the back adhesive 90 is adhered to the ultrasonic steel mesh 70, so that the assembly is completed.

[0051] In summary, the lock frame 10 is provided with a containing space and a through hole 11 communicated with the containing space, the ultrasonic support 30 is installed on the PCB 20 in the containing space and forms a receiving bin 60 with the PCB 20, the ultrasonic support 30 is provided with a sound guide hole 31 communicated with the receiving bin 60, the ultrasonic device 40 is installed on the PCB 20 in the receiving bin 60, the waterproof and breathable net 50 is installed on the outer wall of the ultrasonic support 30 and covers the sound guide hole 31, the waterproof and breathable net 50 can block the water stains invading from the external environment, has the waterproof and dustproof functions, and the safety of the ultrasonic device 40 is enhanced, the waterproof structure of the intelligent door lock has the simple structure, can realize the quick disassembly, is convenient for the later maintenance, is suitable for wide range of promotion.

[0052] The above embodiment is only the preferred embodiment of the utility model, cannot with this to limit the range of the utility model protection, the person skilled in the art makes any non-substantial change and replacement on the basis of the utility model, and all belong to the range of the utility model claimed protection.

Claims

1. A waterproof structure, characterized by, The application relates to a waterproof structure of an ultrasonic device. The waterproof structure comprises a lock frame, a PCB board, an ultrasonic support, an ultrasonic device and a waterproof and air-permeable net. The lock frame is provided with an accommodating space and a through hole in communication with the accommodating space. The PCB board is installed on the inner wall of the accommodating space. One end of the ultrasonic support is located in the accommodating space and is installed on the PCB board, and the other end of the ultrasonic support extends into the through hole. The ultrasonic support and the PCB board enclose a receiving cavity.

2. The waterproof structure according to claim 1, characterized by The ultrasonic support is provided with a sound guide hole.

3. The waterproof structure according to claim 1, characterized by One end of the sound guide hole is in communication with the receiving cavity, and the other end of the sound guide hole is in communication with the through hole.

4. The waterproof structure according to claim 3, characterized by The ultrasonic device is located in the receiving cavity.

5. The waterproof structure according to claim 4, characterized by The ultrasonic device is installed on the PCB board and is electrically connected with the PCB board.

6. The waterproof structure according to claim 4, wherein The waterproof and air-permeable net is located in the through hole.

7. The waterproof structure according to claim 6, characterized by The waterproof and air-permeable net is installed on the outer wall of the ultrasonic support and covers the sound guide hole.

8. The waterproof structure according to claim 1, characterized by The inner diameter of the sound guide hole gradually increases from the end close to the ultrasonic device to the end close to the waterproof and air-permeable net. The ultrasonic support comprises a base and a first boss protruding from the base. Part of the first boss is located in the through hole. The ultrasonic support is further provided with a first recess. The first recess is arranged on the base. The sound guide hole penetrates the base and the first boss in sequence from the inner wall of the first recess. The inner wall of the first recess and the PCB board enclose the receiving cavity. The waterproof and air-permeable net is installed on the first boss. The waterproof structure further comprises an ultrasonic steel net. The ultrasonic steel net is provided with a second recess and a plurality of openings. The ultrasonic steel net comprises a support plate and a second boss protruding from the support plate. The second recess is arranged on the side of the support plate away from the second boss. The openings penetrate the second boss from the inner wall of the second recess. The support plate is clamped between the base and the lock frame. The second boss extends into the through hole. The first boss extends into the second recess. The waterproof and air-permeable net is clamped between the first boss and the inner wall of the second recess. The waterproof structure further comprises UV glue. The base is provided with an annular glue applying groove on the side facing the support plate. The UV glue is located in the glue applying groove and is bonded with the support plate. The waterproof structure further comprises an anti-static cloth located in the accommodating space. One end of the anti-static cloth is provided with a positioning hole. The other end of the anti-static cloth is connected with the PCB board. The anti-static cloth is sleeved on the second boss through the positioning hole. The anti-static cloth is clamped between the support plate and the lock frame. The waterproof structure further comprises annular back adhesive. The inner wall of the accommodating space is further provided with an annular positioning groove. The positioning groove is coaxially arranged with the through hole and is in communication with the through hole. The back adhesive is installed in the positioning groove. The anti-static cloth and the ultrasonic steel net are connected with the back adhesive. The waterproof structure further comprises double-sided adhesive located in the accommodating space. The ultrasonic support is fixed on the PCB board through the double-sided adhesive.

9. The waterproof structure according to claim 1, wherein The lock frame comprises a middle frame and a panel, the panel is detachably mounted on the middle frame and enclosed with the middle frame to form the containing space, the through hole is arranged on the panel, and the PCB is mounted on the middle frame.

10. An intelligent door lock, characterized by The waterproof structure comprises the waterproof structure as claimed in any one of claims 1-9.

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