CN217872318U - Electronic padlock - Google Patents

Abstract

The utility model discloses an electronic padlock, which comprises a seat body, a lock tongue, a lock beam and a lock core sleeved on an output shaft of a motor, wherein the seat body is provided with a lock opening channel for the lock beam to longitudinally slide in a reciprocating manner and a lock tongue channel for the lock tongue to transversely slide in a reciprocating manner; the spring bolt comprises a spring bolt body, a buckling piece and a spring piece, wherein the buckling piece is divided into an upper part and a lower part, the upper part is in sliding buckling connection with the spring bolt body, the lower part is provided with a fixed column, one end of the spring piece is sleeved on the fixed column, and the other end of the spring piece is abutted with a spring channel fixedly arranged on the spring bolt body; through setting up the spring bolt passageway, the spring bolt is reciprocating sliding in the spring bolt passageway for can extend to the lock and open in the passageway, and the gomphosis makes the lock beam can not the up-and-down motion to the end of lock beam, and then realizes the locking to the electron padlock, spring bolt part simple structure, easily assembly, and the smooth reliability of action of just unblanking is good.

Description

Electronic padlock

Technical Field

The utility model belongs to electron padlock structure field specifically is an electron padlock.

Background

With the development of interconnection of everything, most industries are impacted, locks step into intellectualization due to technology upgrading, and door locks, cabinet doors, vehicle locks and the like enter a keyless stage; through the technical improvement of the lockset, a consumer only needs an intelligent terminal such as a practical mobile phone or a bracelet and the like to unlock and lock the lockset, the situation that a key is forgotten to be taken when the consumer goes out is avoided, and the portability of the consumer going out is greatly improved;

the padlock enters the keyless electronization stage at the earliest because of high life utilization rate; in the existing electronic padlock, as the patent application number is 2021721163597.7, an electronic padlock is disclosed, which mainly comprises a lock beam, a lock tongue, an unlocking turntable and a motor, wherein the unlocking turntable is arranged on an output shaft of the motor, the motor rotates and follows, the abutted surface of the unlocking turntable and the lock tongue changes, so that the lock tongue is pushed to be inserted into the lock beam, the lock tongue is connected with a spring structure in a matched manner, and the spring structure is reset to lock and unlock the lock beam; however, the specific structure of the lock tongue is divided into a left lock tongue and a right lock tongue, corresponding abutting surfaces are arranged in the corresponding left lock tongue and right lock tongue respectively, the abutting surfaces and the unlocking turnplate form abutting at different angles, unlocking and locking of the lock are achieved, the number of the lock tongue structural parts is large, the structure is complex, the installation process of the lock is further complicated, and more seriously, once a certain element is dislocated, the problem of unsmooth unlocking can occur, therefore, an electronic padlock with reasonable structural design is provided, and the defects are overcome.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems that the lock tongue mechanism in the technology is complex, is not easy to assemble and is not smooth in unlocking due to the fact that parts are easy to displace, a solution is provided.

In order to achieve the above object, the present invention provides an electronic padlock, which comprises a seat body, a lock tongue, a lock beam and a lock core sleeved on an output shaft of a motor, wherein the seat body is provided with a lock opening channel for the lock beam to slide longitudinally and reciprocally, and a lock tongue channel for the lock tongue to slide transversely and reciprocally;

the spring bolt comprises a spring bolt body, a buckling piece and a spring piece, wherein the buckling piece is divided into an upper part and a lower part, the buckling piece is buckled on the spring bolt body in a sliding mode through the upper part, a fixed column is arranged on the lower part, one end of the spring piece is sleeved on the fixed column, and the other end of the spring piece is abutted to a spring channel fixedly arranged on the spring bolt body; during the locking, the lock core rotates and extrudes the one side that the spring fixed column was kept away from to the lower part, and the spring part compression is to the energy storage state, drives the spring bolt body and stretches into to the lock and open in the passageway to with the lock beam gomphosis.

Wherein, the both sides of spring bolt passageway still are equipped with the butt groove, and the both sides of spring bolt body still are equipped with and are used for the gliding butt wing in the butt groove, and when the spring bolt body stretched into or the lock opened the passageway, the butt wing was mutually the butt with two inner walls in butt groove respectively.

Wherein, the butt wing divide into first butt portion and second butt portion, is equipped with the sand grip between first butt portion and the second butt portion, and upper portion is equipped with the recess with sand grip looks adaptation for the fastener is reciprocal between first butt portion and second butt portion to slide.

Wherein, the one end of keeping away from the lock of spring bolt main part and opening the passageway still is used for the butt rectangular with the lock core butt.

The lock core comprises a fixing part and an abutting part, and the abutting part is positioned at the upper end of the fixing part; the fixing part is sleeved on an output shaft of the motor, and the abutting part is abutted with the abutting long strip or the lower part.

The base body is also provided with a motor bin for accommodating a motor, and a port of the motor bin is communicated to the bolt channel; the motor storehouse is close to the one end of spring bolt passageway and is established the lock core ring, and the fixed part holding is in the motor storehouse and with the laminating of lock core ring, and butt portion extends to the spring bolt passageway through the through-hole that the lock core ring formed.

Wherein, the lock core ring is equipped with the spacing groove towards the one side in motor storehouse, and the outside of fixed part is equipped with the gliding stopper of adaptation on the spacing groove.

The lock beam is divided into a long end and a short end, the long end and the short end are connected through a bending part, and the short end slides or is separated from the lock opening channel longitudinally; one end of the seat body, which is far away from the lock opening channel, is provided with a lock beam channel, and the long end longitudinally slides or rotates in the lock beam channel.

The lock comprises a seat body, a lock bolt and a sealing cover, wherein the seat body is provided with a locking hole, the locking hole is arranged in the seat body, and the locking hole is arranged in the seat body.

The first plug board and the second plug board are respectively positioned on two sides of the sealing cover; the motor cabin is provided with an assembling port for being assembled with the first inserting plate, and the shell is sleeved on the second inserting plates on the two sides.

The utility model has the advantages that: compared with the prior art, the utility model provides an electronic padlock, including pedestal, spring bolt, lock beam and the lock core of registrate on the motor output shaft, the pedestal is equipped with the lock that is used for the lock beam to carry out the longitudinal reciprocating sliding and opens the passageway, is used for the spring bolt to carry out the transverse reciprocating sliding's spring bolt passageway; the spring bolt comprises a spring bolt body, a buckling piece and a spring piece, wherein the buckling piece is divided into an upper part and a lower part, the buckling piece is buckled on the spring bolt body in a sliding mode through the upper part, a fixed column is arranged on the lower part, one end of the spring piece is sleeved on the fixed column, and the other end of the spring piece is abutted to a spring channel fixedly arranged on the spring bolt body; when the lock is locked, the lock cylinder rotates and extrudes one surface of the lower part, which is far away from the spring fixing column, and the spring part is compressed to an energy storage state to drive the lock tongue body to extend into the lock opening channel and be embedded with the lock beam; through the arrangement of the lock tongue channel, the lock tongue slides in the lock tongue channel in a reciprocating manner, so that the lock tongue can extend into the lock opening channel and is embedded into the tail end of the lock beam, so that the lock beam cannot move up and down, and the electronic padlock is locked; and the spring bolt is different from the spring bolt of the left and right separation structure formula in the prior art, and the spring bolt main part adopts the integral type forming structure, and makes the spring bolt main part can carry out effectual lateral sliding through fastener cooperation spring part, and the part is less, and the action of opening and shutting the lock is smooth, reinforcing reliability.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a top view of the seat body of the present invention;

fig. 4 is a diagram showing the cooperation of the spring bolt channel and the spring bolt of the present invention;

fig. 5 is a bottom perspective view of the latch bolt of the present invention;

fig. 6 is a top perspective view of the latch of the present invention;

fig. 7 is a perspective view of the motor chamber of the present invention;

fig. 8 is a perspective view of the lock cylinder of the present invention;

fig. 9 is a perspective view of the lock beam of the present invention;

fig. 10 is a perspective view of the closure of the present invention.

The main element symbols are as follows:

1. a lock beam; 11. a short end; 12. a long end; 13. limiting tangent planes; 14. a rotating ring; 2. a base body;

21. locking and unlocking the channel; 22. A deadbolt passage; 221. a butt joint groove; 23. a motor compartment; 231. a lock cylinder ring;

232. a limiting groove; 233. a socket; 24. a lock beam passage; 3. a latch bolt; 31. a bolt body;

311. an abutment wing; 312. a first abutting portion; 313. a second abutting portion; 314. a convex strip;

315. abutting the long strip; 316. a spring channel; 32. a fastener; 321. an upper portion; 322. a lower part;

323. fixing a column; 33. a spring member; 4. a lock cylinder; 41. a fixed part; 42. an abutting portion;

43. a limiting block; 5. a housing; 61. a first board insert; 62. a second board.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

In the following description, general example details are given to provide a more thorough understanding of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

To the spring bolt mechanism that exists in the above-mentioned technique complicacy, difficult assembly, the easy spare part that appears shifts and cause the not smooth problem of unblanking, the utility model provides an electronic padlock:

referring to fig. 1 to 3, the lock comprises a base body 2, a bolt 3, a lock beam 1 and a lock cylinder 3 (not shown in the motor) sleeved on an output shaft of the motor, wherein the base body 2 is provided with a lock opening channel 21 for the longitudinal reciprocating sliding of the lock beam 1 and a bolt channel 22 for the transverse reciprocating sliding of the bolt 3; the base body 2 is used as a main mounting die, a lock opening channel 21 and a bolt channel 22 are formed in the base body 2 and used for assembling functional components, it can be understood that the lock beam 1 longitudinally slides or is separated from the lock opening channel 21, namely, the lock beam is in an opening state, and conversely, the lock beam 1 is extruded by the bolt 3 in the lock opening channel 21, namely, the lock beam is in a locking state; furthermore, the base body 2 can also form a battery compartment for accommodating different battery types, and the battery is arranged in the battery compartment and is electrically connected with the motor to provide the motor with functions; the lock is characterized in that a control panel electrically connected with the motor is correspondingly arranged, the control panel is connected with the motor to receive an external unlocking signal and then transmit a driving instruction to the motor, the motor drives and drives the lock cylinder to work, and the lock tongue 3 is far away from or extends into the lock beam 1 in the lock opening channel 21 to realize keyless starting and locking;

the bolt 3 comprises a bolt body 31, a fastener 32 and a spring element 33, wherein the fastener 32 is divided into an upper part 321 and a lower part 322, the fastener 32 is slidably fastened on the bolt body 31 through the upper part 321, the lower part 323 is provided with a fixed column 323, one end of the spring element 33 is sleeved on the fixed column 323, and the other end of the spring element is abutted with a spring channel 316 fixedly arranged on the bolt body 31; the bolt body 31 is integrally formed, the bolt body can stably slide in a reciprocating manner in the bolt channel 22, the fastener 32 is divided into an upper part 321 and a lower part 322, the upper part 321 is used for being buckled with the bolt body 31 in a sliding manner, so that the fastener 32 can slide relative to the bolt body 31, the lower part 322 is provided with a fixing column 323 which is used for being sleeved and connected with the spring element 33 and is matched with the spring channel 316 arranged on the bolt body 31 to fix the spring element 33; in order to further explain the linkage cooperation of the above structures, the following description is made in combination with a locking state and an unlocking state, when locking, the lock cylinder 3 rotates and presses one surface of the lower part 322, which is far away from the spring fixing column 323, the buckling piece 32 moves towards the locking and unlocking channel, so that the spring piece 33 is compressed to an energy storage state, the spring piece 33 presses the bolt body 31 through elasticity, so that the bolt body 31 moves towards the locking and unlocking channel 21, one end of the bolt body 31 extends into the locking and unlocking channel and is embedded with the lock beam 1, and the lock beam 1 is pressed when sliding up and down, so that a locking state is realized; when the lock is unlocked, the lock core 3 rotates, the extrusion of the lock core 3 to the lower part 322 is slowly reduced, the spring piece 33 in a completely compressed state slowly pushes the buckling piece 32 away from the lock opening channel 21, and it is worth noting that as the spring piece 33 is still in a compressed state, the lock tongue 3 is still in a butt state with the lock beam 1 at this stage, but the extrusion force is also slowly reduced, when the spring piece 33 is released from the compressed state, the lock beam 1 and the lock tongue 3 are released from the extrusion state, so that the lock tongue 3 is transversely separated from the lock opening channel 21, and the lock beam 1 can be longitudinally separated from the lock opening channel 21, thereby realizing the opening state; because the whole part of spring bolt 3 is less, only need can further install in pedestal 2 after accomplishing fastener 32 and spring part 33 assembly relation, the assembly is simple, and unblank and unblock in-process spring bolt 3 at the in-process atress of spring bolt passageway even, unblank unblock smoothness, the reliability is high.

In this embodiment, referring to fig. 4, two sides of the tongue channel 22 are further provided with abutting grooves 221, two sides of the tongue body 31 are further provided with abutting wings 311 for sliding in the abutting grooves 221, and in an open or locked state, the abutting wings 311 are respectively abutted against two inner end walls of the abutting grooves 221; it will be appreciated that the abutment grooves 211 define two extreme positions at which the bolt body 31 slides back and forth;

furthermore, referring to fig. 4 to 6, the abutting wing 311 is divided into a first abutting portion 312 and a second abutting portion 313, a convex strip 314 is disposed between the first abutting portion 312 and the second abutting portion 313, and a groove adapted to the convex strip 314 is disposed on the upper portion 321, so that the fastener 32 slides back and forth between the first abutting portion 312 and the second abutting portion 313; it can be understood that the first abutting portion 312 and the second abutting portion 313 may be regarded as slot positions opened on the tongue body 31, and the slot positions are provided with protruding strips 314, the upper portion of the fastening member 32 is provided with grooves adapted to the protruding strips 314, the protruding strips 314 are engaged with the grooves, and the fastening member 32 is slid on the tongue body 31; when in a locking state, the inner end wall of the abutting groove 221 close to the locking channel 21, the first abutting part 312 and the upper part 322 of the fastener are abutted in sequence to form a good stress condition and strengthen the locking strength; in the activated state, the inner end wall of the abutment groove 221, the second abutment portion 313 and the upper latch portion 321 which are away from the lock-opening passage 21 are also brought into a sequentially abutting state, so that the latch 3 does not slide in the latch passage 32.

In this embodiment, referring to fig. 5, an abutting strip 315 is further used for abutting against the lock cylinder 4 at an end of the latch bolt main body 31 away from the lock opening channel 21; the lock core 4 has different abutting surfaces, the shape of the cam structure of the lock core 4 is taken as an example, the cam-shaped lock core rotates in a locking state, and when the convex part of the cam extrudes the lower part, the lock tongue can be pushed towards the lock opening channel; in the unlocked state, the convex portion of the cam is pressed toward the abutting strip 315, and pushes the second abutting portion 313 to approach toward the inner end wall and attach to the inner end wall, so as to form a stable unlocked state.

In this embodiment, referring to fig. 4, 5 and 8, the key cylinder 4 includes a fixing portion 41 and an abutting portion 42, and the abutting portion 42 is located at an upper end of the fixing portion 41; the fixing part 41 is sleeved on the output shaft of the motor, and the abutting part 42 abuts against the abutting long strip 315 or the lower part 322; the abutting part 42 is arc-rail-shaped, when the abutting part abuts against the central line position of the arc rail, the bolt 4 extends into the lock opening channel 21, and when the abutting part 42 abuts against the two end positions of the arc rail, the bolt 3 retracts to the bolt channel 22, so that the bolt 3 is in a transverse reciprocating state; when the abutting portion 42 rotates to the abutting strip 315, the arc-rail center line position abuts against the abutting strip, and pushes the second abutting portion 313 toward the inner end wall to close and attach to the inner end wall, thereby forming a stable unlocking state.

Further, referring to fig. 3, 7 and 8, the seat body 2 is further provided with a motor chamber 23 for accommodating a motor, and a port of the motor chamber 23 is communicated to the bolt passage 22; a lock cylinder ring 231 is arranged at one end of the motor chamber 23 close to the lock tongue channel 22, the fixing part 41 is accommodated in the motor chamber 23 and is attached to the lock cylinder ring 231, and the abutting part 42 extends to the lock tongue channel 22 through a through hole formed by the lock cylinder ring 231; it can be understood that the motor (not shown) is accommodated in the motor chamber 23, the fixing portion 41 is sleeved on the output shaft of the motor, in the assembling process, the upper end and the lower end of the fixing portion 41 are squeezed together by the lock cylinder ring 231 and the motor, the lock cylinder ring 231 and the motor are installed in a clamping manner, a through hole for the abutting portion 42 to extend to the bolt channel 2 is formed in the ring center of the lock cylinder ring 231, the structure is simple, and the installation is tight.

Further, referring to fig. 7 and 8, a limiting groove 232 is formed on one surface of the key cylinder ring 231 facing the motor compartment 23, and a limiting block adapted to slide on the limiting groove is arranged on the outer side of the fixing portion 41; the area that the spacing groove took is the lock core ring half, and it can be understood, the sliding block is spacing on the spacing groove and slides for the lock core can only rotate 180 along the axial to two extreme position butts of butt portion 42 and lower part 322, butt portion 32 and butt rectangular 315 have been formed, corresponding to the locking and the open mode of this application.

In this embodiment, referring to fig. 4 and 9, the lock beam 1 is divided into a long end 12 and a short end 11, the long end 12 and the short end 11 are connected by a bending portion, and the short end 11 slides or is separated longitudinally in the locking channel 21; one end of the seat body 2 far away from the lock opening channel 22 is provided with a lock beam channel 24, and the long end 12 longitudinally slides or rotates in the lock beam channel 24; in practice, the short end 11 is provided with a clamping interface, the tail end of the lock tongue body 31 is provided with a guide angle structure which is spliced with the clamping interface, and the clamping interface is spliced with the guide angle structure when the lock is locked; the long end 12 is provided with a rotary ring groove 14 and a limit tangent plane 13, and the inner side of the lock beam channel 24 is provided with a limit bolt and a pop-up spring, so that when the electronic padlock is in a locking state, the long end 12 extrudes the pop-up spring; when the padlock is in a locking state, the spring acts on the long end 12 of the lock beam to enable the lock beam 1 to be integrally popped, one end of the limiting bolt is located in the rotary ring groove 14, the limiting bolt is supported by the spring to abut against the inner end wall of the rotary ring groove 14, and the lock beam 1 is supported to rotate 360 degrees by taking the long end 14 as a center; and spacing tangent plane 13 has also formed the upper end wall of spacing region and spacing bolt butt, and when the lock beam 1 was used according to pressing, spacing slotting was in real time with spacing tangent plane 13 butt, can not take place rotatoryly, only can carry out fore-and-aft reciprocal slip for short-end 11 keeps correctly in joint interface position.

In this embodiment, please refer to fig. 1, further comprising a housing 5 and a cover 6, wherein the housing 5 and the cover 6 enclose a sealed cavity for accommodating the seat body 2 and the latch bolt 3; a strong cavity is formed to enhance the shock resistance of the padlock.

In this embodiment, referring to fig. 10, a first inserting plate 61 and a second inserting plate 62 are disposed on one surface of the sealing cover 6 close to the housing, and the first inserting plate 61 and the second inserting plate 2 are respectively located on two sides of the sealing cover; the motor chamber 23 is provided with a splicing opening 233 for splicing with the first inserting plate 61, and the shell 5 is sleeved on the second inserting plates 62 at two sides; in practice, the side of the cover 6 close to the cavity may be provided with a corresponding control panel; first picture peg 61 and second picture peg 62 are located the both sides of closing cap 6 respectively, form corresponding clearance between the first picture peg 61 of homonymy and the second picture peg 62, can insert reverse charging panel in the clearance, supply power for the motor through the cell-phone that supports reverse charging, and the adaptation bluetooth instruction can be unblanked, provides a novel mode of unblanking, helps attracting the consumer.

The utility model has the advantages that:

1) The lock bolt has the advantages that the number of integral parts is small, the lock bolt can be further installed in the base body only after the assembly relation of the buckling piece and the spring piece is completed, the assembly is simple, the stress of the lock bolt in the lock bolt channel process in the unlocking and unlocking processes is uniform, the unlocking and unlocking are smooth, and the reliability is high;

2) The output shaft of the motor is sleeved with the fixing part, in the assembling process, the lock cylinder ring and the motor jointly extrude the upper end and the lower end of the fixing part to be installed in a clamping manner, and the ring center of the lock cylinder ring forms a through hole for the abutting part to extend to the lock tongue channel, so that the lock cylinder is simple in structure and tight in installation;

3) Spacing tangent plane has formed the upper end wall of spacing region with spacing bolt butt, and the lock beam is when pressing the use, and the rotation can not take place for spacing slotting is real-time with spacing tangent plane looks butt, only can carry out fore-and-aft reciprocal slip for the stub keeps correctly in joint interface position.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims (10)

1. An electronic padlock is characterized by comprising a base body, a lock tongue, a lock beam and a lock cylinder sleeved on an output shaft of a motor, wherein the base body is provided with a lock opening channel for the lock beam to longitudinally slide in a reciprocating manner and a lock tongue channel for the lock tongue to transversely slide in a reciprocating manner;

the lock bolt comprises a lock bolt body, a buckling piece and a spring piece, wherein the buckling piece is divided into an upper part and a lower part, the upper part is in sliding buckling connection with the lock bolt body, the lower part is provided with a fixed column, one end of the spring piece is sleeved on the fixed column, and the other end of the spring piece is abutted to a spring channel fixedly arranged on the lock bolt body; during locking, the lock core rotates and extrudes the one side that the fixed column was kept away from to the lower part, the spring part compression is to the energy storage state, the spring part drives the spring bolt body stretch into to lock opens in the passageway, and with the lock bridge gomphosis.

2. The electronic padlock of claim 1, wherein abutting grooves are further formed in two sides of the lock tongue channel, abutting wings for sliding in the abutting grooves are further formed in two sides of the lock tongue body, and when the electronic padlock is in an open state or a locked state, the abutting wings are respectively abutted against two inner end walls of the abutting grooves.

3. The electronic padlock of claim 2, wherein the abutment wing is divided into a first abutment portion and a second abutment portion, a rib is provided between the first abutment portion and the second abutment portion, and a groove adapted to the rib is provided on the upper portion, so that the fastener slides reciprocally between the first abutment portion and the second abutment portion.

4. The electronic padlock of claim 3, wherein the end of the bolt body distal from the lock opening channel is further configured as an abutment strip for abutment with the lock cylinder.

5. The electronic padlock of claim 4, wherein the lock cylinder comprises a securing portion and an abutment portion, the abutment portion being located at an upper end of the securing portion; the fixing part is sleeved on an output shaft of the motor, and the abutting part abuts against the abutting strip or the lower part.

6. The electronic padlock of claim 5, wherein the base body is further provided with a motor chamber for accommodating a motor, and a port of the motor chamber is communicated to the bolt channel; the motor cabin is close to the lock tongue passageway one end establishes the lock core ring, the fixed part holding is in the motor cabin and with the lock core ring laminating, butt portion passes through the through-hole that the lock core ring formed extends to the lock tongue passageway.

7. The electronic padlock of claim 6, wherein a limiting groove is formed in a surface of the lock cylinder ring facing the motor chamber, and a limiting block adapted to slide on the limiting groove is arranged outside the fixing portion.

8. The electronic padlock of claim 1, wherein the shackle has a long end and a short end, the long end and the short end being connected by a bend, the short end sliding or backing out longitudinally within the locking channel; one end of the seat body, which is far away from the lock opening channel, is provided with a lock beam channel, and the long end slides or rotates longitudinally in the lock beam channel.

9. The electronic padlock of claim 1, further comprising a housing and a cover, wherein the housing and the cover enclose a sealed cavity for receiving the seat and the locking tongue.

10. The electronic padlock of claim 9, wherein a first inserting plate and a second inserting plate are arranged on one surface of the sealing cover close to the shell, and the first inserting plate and the second inserting plate are respectively positioned on two sides of the sealing cover; the motor cabin is provided with an assembling port used for being assembled with the first inserting plate, and the shell is sleeved on the two sides of the second inserting plate.

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