CN213815926U

CN213815926U - Safety locking device

Info

Publication number: CN213815926U
Application number: CN202023175952.7U
Authority: CN
Inventors: 曹海忠; 何超群; 吕政江
Original assignee: Shenzhen Yuehai Electronics Co ltd
Current assignee: Shenzhen Yuehai Electronics Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-07-27
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a safe locking ware, include: base, electron locking subassembly, and manual unblock subassembly. The electronic locking assembly includes: PCB board, motor, transmission shaft, and output shaft. The transmission shaft is provided with external threads. The output shaft is arranged on the base in a sliding mode. One end of the output shaft is sleeved with the transmission shaft and is provided with an internal thread matched with the external thread. The other end of the output shaft extends to the outside of the base. The manual unlocking assembly comprises: unblock slider and stay cord. One end of the unlocking slide block, which is close to the pull rope, is provided with a clamping groove. One end of the pull rope is provided with a clamping block which is clamped with the clamping groove. The other end of the pull rope extends to the outside of the base. Above-mentioned safe locking ware adopts the electron locking subassembly realization electron locking of lead screw drive formula design, and manual unblock then adopts the manual unblock that separable stay cord and unblock slider combination formed to realize, simple structure, the installation and the dismantlement of being convenient for to improve the convenience of transportation and carrying.

Description

Safety locking device

Technical Field

The utility model relates to a rifle design technical field charges especially relates to a safe locking ware.

Background

At present, domestic new energy vehicles basically have industrialized development foundation after research, development and demonstration operation in nearly ten years, key technologies such as batteries, motors, electronic control and system integration are greatly improved, pure electric vehicles and plug-in hybrid electric vehicles begin to be put on the market in a small scale to deal with the increasingly prominent contradiction between fuel supply and demand and the problem of environmental pollution, major automobile production countries in the world are increasingly deployed, new energy vehicles are developed as national strategies, the research and development and industrialization of the propulsion technology are accelerated, and meanwhile, the energy-saving technology of the vehicles is vigorously developed, popularized and applied. Energy-saving and new energy automobiles become the development direction of the international automobile industry, and the next decade will meet the important strategic opportunity of transformation and upgrading of the global automobile industry. At present, the automobile production and sale scale in China is the first world, and the automobile production and sale scale is expected to continue to increase in the future period, so that the opportunity and the grasping deployment are needed to be grasped, the energy-saving and new energy automobile industry is accelerated to be cultivated and developed, the optimization and the upgrade of the automobile industry are promoted, and the major country of the automobile industry is changed into the strong country of the automobile industry.

The defect that the safe locking ware that uses on traditional electric pile or the car end charging seat exists does: structural design is complicated, and the equipment is all very difficult with the dismantlement to be equipped with the stay cord that the integration is connected in the manual unblock module, not only increased the degree of difficulty of equipment with the dismantlement, make the transportation of safe locking ware and the convenience of carrying reduce moreover.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a safe locking ware adopts the electron locking subassembly realization electron locking of lead screw drive formula design, and manual unblock then adopts separable stay cord and the manual unblock that the unblock slider combination formed to realize simple structure, is convenient for install and dismantle to improve the convenience of transportation and carrying.

A safety catch, comprising:

a base;

an electronic locking assembly mounted on the base; the electronic locking assembly includes: the PCB is arranged on the base, the motor is connected with the PCB, the transmission shaft is connected with the motor, and the output shaft is connected with the transmission shaft; the transmission shaft is provided with external threads; the output shaft is arranged on the base in a sliding manner; one end of the output shaft is sleeved with the transmission shaft and is provided with an internal thread matched with the external thread; the other end of the output shaft extends to the outside of the base; the output shaft is provided with a first driving part; and

a manual unlocking assembly mounted on the base; the manual unlocking assembly comprises: the unlocking slide block is arranged on the base in a sliding mode, and the pull rope is connected with the unlocking slide block; the unlocking slide block is provided with a second driving part which is linked with the first driving part; one end of the unlocking slide block, which is close to the pull rope, is provided with a clamping groove; one end of the pull rope is provided with a clamping block clamped with the clamping groove; the other end of the pull rope extends to the outside of the base.

Above-mentioned safe locking ware, electron locking subassembly adopt the design of lead screw drive formula, and PCB board control motor drives the transmission shaft and rotates, and constitutes the lead screw transmission structure between transmission shaft and the output shaft, and the output shaft is along with the rotation of transmission shaft and the straight line is advanced and withdrawn, and the output shaft extends to the one end of the outside of base and is the locking end to reach the purpose of electron locking, its simple structure, the action is high-efficient and stable, and it is all very convenient to install and dismantle. When the manual unlocking is needed, the user pulls the pull rope to extend to one end outside the base, then the unlocking sliding block is driven to move, the first driving portion on the unlocking sliding block is used for driving the second driving portion on the output shaft, and then the output shaft is driven to retract into the base, so that the purpose of manual unlocking is achieved. Adopt fixture block and draw-in groove complex separable design between manual unblock subassembly's stay cord and the unblock slider, the user can separate stay cord and unblock slider very easily to dismantle the stay cord from the base, not only reduced the degree of difficulty of equipment with the dismantlement, improve the convenience of transportation and carrying moreover. Through the design, the electronic locking is realized by the electronic locking assembly adopting the screw rod driving type design, and the manual unlocking formed by combining the separable pull rope and the unlocking slide block is realized by the manual unlocking, so that the structure is simple, the installation and the disassembly are convenient, and the convenience in transportation and carrying is improved.

In one embodiment, the electronic locking assembly further comprises: the first microswitch and the second microswitch are respectively connected with the PCB; the output shaft is provided with a first trigger part for triggering the first microswitch and a second trigger part for triggering the second microswitch. By adopting the bidirectional feedback design, when the output shaft enters the locking state and the unlocking state respectively, the first microswitch and the second microswitch are correspondingly triggered, and the PCB can judge the current state of the output shaft according to the electric signals fed back by the first microswitch and the second microswitch.

In one embodiment, the motor is parallel to the drive shaft; a rotating shaft of the motor is provided with a first gear; the transmission shaft is pivoted on the base; one end of the transmission shaft is provided with a second gear which is meshed with the first gear. The motor and the transmission shaft are arranged in parallel and are transmitted through the gear, so that the axial length of the equipment on the transmission shaft can be compressed, and the volume miniaturization design of the equipment is facilitated.

In one embodiment, the first driving part is convexly arranged on one side of the output shaft; the second driving part is convexly arranged on one side of the unlocking slide block; and the second driving part is positioned at one end of the first driving part, which is far away from the transmission shaft. When manual unlocking is needed, the unlocking slide block is driven to move through the pull rope, the first driving part is pushed to move by the second driving part, and then the output shaft is forced to retract into the base.

In one embodiment, the manual unlocking assembly further comprises: and the elastic piece is connected between the unlocking slide block and the base. When the external force to the stay cord is removed, the unlocking slide block automatically resets under the action of the elastic piece.

In one embodiment, the base is further provided with a first silica gel pad and a rubber plug; one end of the output shaft passes through the first silica gel pad and then extends to the outside of the base; one end of the pull rope passes through the rubber plug and then extends to the outside of the base.

First silica gel pad and plug are used for improve equipment's leakproofness, promote waterproof performance.

In one embodiment, the base is provided with a mounting groove for accommodating the electronic locking assembly and the manual unlocking assembly; the base is also provided with a first cover plate which covers the mounting groove and is detachably arranged. When the assembly and the disassembly are carried out, the first cover plate is operated, and the components in the base can be installed or adjusted, so that the assembly and the disassembly are very convenient.

In one embodiment, the mounting groove comprises: a main mounting area and a side mounting area; the first cover plate covers the main mounting area; the base is also provided with a second cover plate which covers the side mounting area and is detachably arranged; the motor, the transmission shaft, the output shaft and the unlocking slide block are all arranged in the main mounting area; the pull cord is mounted in the side mounting area. When the stay cord is assembled or disassembled, the second cover plate can be disassembled separately for operation, and the assembly and the disassembly are very convenient.

In one embodiment, the base is further provided with a second silica gel pad positioned between the main mounting area and the side mounting area; the unlocking slide block is arranged on the second silica gel pad in a penetrating mode. The second silica gel pad is used for improving the leakproofness of main installing zone and side installing zone, avoids when installing alone or dismantling the stay cord, and dust or liquid enter into main installing zone from the side installing zone, promote waterproof performance.

In one embodiment, the first cover plate and the second cover plate are provided with sealant at the peripheries. After the glue dripping treatment, sealant is formed at the peripheries of the first cover plate and the second cover plate, so that the sealing performance of the equipment is improved, and the waterproof performance is improved.

Drawings

Fig. 1 is a perspective view of a safety catch according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of the safety catch of FIG. 1;

FIG. 3 is a partial view of the safety catch of FIG. 2;

FIG. 4 is a side view of the safety catch of FIG. 3;

FIG. 5 is a partial view of the safety catch shown in FIG. 3;

FIG. 6 is a schematic diagram of the electronic locking principle of the safety lock shown in FIG. 3;

fig. 7 is a schematic view of the safety lock of fig. 6 illustrating the manual unlocking principle.

The meaning of the reference symbols in the drawings is:

100-a safety lock;

10-base, 11-mounting groove, 111-main mounting area, 112-side mounting area, 12-first cover plate, 13-second cover plate, 14-first silica gel pad, 15-rubber plug, 16-second silica gel pad;

20-an electronic locking assembly, 21-a PCB (printed Circuit Board), 22-a motor, 221-a first gear, 23-a transmission shaft, 231-a second gear, 24-an output shaft, 241-a first driving part, 25-a first microswitch and 26-a second microswitch;

30-a manual unlocking assembly, 31-an unlocking slide block, 311-a second driving part, 32-a pull rope, 321-a clamping block, 322-a handle plate and 33-an elastic element.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 7, it is a safety lock 100 according to an embodiment of the present invention.

As shown in fig. 1 to 4, the safety catch 100 includes: a base 10, an electronic locking assembly 20 mounted on the base 10, and a manual unlocking assembly 30 mounted on the base 10. The base 10 is used for carrying the electronic locking assembly 20 and the manual unlocking assembly 30, and plays a role of a protection device. The electronic locking assembly 20 is used for electronically controlled locking and unlocking. The manual unlocking assembly 30 is used to provide a way to manually unlock the electronic locking assembly 20 in the event of damage or an emergency.

The safety lock 100 will be further described with reference to fig. 1 to 7.

As shown in fig. 3 and 5, the electronic locking assembly 20 includes: a PCB 21 mounted on the base 10, a motor 22 connected to the PCB 21, a transmission shaft 23 connected to the motor 22, and an output shaft 24 connected to the transmission shaft 23. Wherein the drive shaft 23 is provided with an external thread. The output shaft 24 is slidably disposed on the base 10. One end of the output shaft 24 is sleeved with the transmission shaft 23 and is provided with an internal thread matched with the external thread. The other end of the output shaft 24 extends to the outside of the base 10. The output shaft 24 is provided with a first driving portion 241.

As shown in fig. 3 and 5, in the present embodiment, the electronic locking assembly 20 may further include: a first microswitch 25 and a second microswitch 26 respectively connected to the PCB board 21. The output shaft 24 is provided with a first triggering portion for triggering the first microswitch 25 and a second triggering portion for triggering the second microswitch 26. By adopting the bidirectional feedback design, when the output shaft 24 enters the locking state and the unlocking state respectively, the first microswitch 25 and the second microswitch 26 are correspondingly triggered, and the PCB 21 can judge the current state of the output shaft 24 according to the electric signals fed back by the first microswitch 25 and the second microswitch 26.

Further, as shown in fig. 3 and 5, in the present embodiment, the motor 22 is parallel to the transmission shaft 23. The rotating shaft of the motor 22 is provided with a first gear 221. The transmission shaft 23 is pivoted on the base 10. One end of the transmission shaft 23 is provided with a second gear 231 engaging the first gear 221. The motor 22 and the transmission shaft 23 are arranged in parallel and are driven by gears, so that the length of the equipment in the axial direction of the transmission shaft 23 can be reduced, and the volume miniaturization design of the equipment is facilitated.

As shown in fig. 3 to 5, the manual unlocking assembly 30 includes: an unlocking slider 31 slidably provided on the base 10, and a pull cord 32 connected to the unlocking slider 31. The unlocking slider 31 is provided with a second driving portion 311 that links the first driving portion 241. One end of the unlocking slide block 31 close to the pull rope 32 is provided with a clamping groove. One end of the pulling rope 32 is provided with a clamping block 321 for clamping the clamping groove. The other end of the pull cord 32 extends to the exterior of the base 10.

In the present embodiment, the pull cord 32 is a steel cord externally wrapped with a plastic mold. A handle 322 is provided at one end of the string 32 extending out of the base 10, so that the user can easily operate the string 32.

In this embodiment, the linkage between the output shaft 24 and the unlocking slider 31 may be a synchronous action, that is, the unlocking slider 31 moves along with the movement of the output shaft 24, and vice versa. Of course, the output shaft 24 and the unlocking slider 31 may be separated, that is, the unlocking slider 31 is still kept in the locked state along with the movement of the output shaft 24, and only when the user operates the pull rope 32 to drive the unlocking slider 31 to perform the unlocking operation, the unlocking slider 31 drives the output shaft 24 to move to the unlocked state.

Taking the example of the separating operation design, as shown in fig. 5, in the present embodiment, the first driving portion 241 is protruded to one side of the output shaft 24. The second driving portion 311 is protruded at one side of the unlocking slider 31, and the second driving portion 311 is located at one end of the first driving portion 241 facing away from the transmission shaft 23. When manual unlocking is needed, the unlocking slide block 31 is driven to move through the pull rope 32, the first driving part 241 is pushed to move by the second driving part 311, and the output shaft 24 is further forced to retract into the base 10.

The synchronous operation design may be performed by fixedly connecting the first driving unit 241 and the second driving unit 311.

As shown in fig. 4 and 5, in the present embodiment, the manual unlocking assembly 30 further includes: and an elastic member 33 connected between the unlocking slider 31 and the base 10. When the external force to the pulling rope 32 is removed, the unlocking slide block 31 automatically resets under the action of the elastic piece 33, and the unlocking slide block has the advantages that under the condition that no external force is involved, the pulling rope 32 cannot stretch or contract due to the current state of the output shaft 24, and the independence and the stability of the pulling rope 32 are kept. For example, in the present embodiment, the elastic member 33 is a spring fitted around the pulling rope 32. In other embodiments, the elastic member 33 may be an elastic rubber block.

In order to improve the convenience of assembling and disassembling the apparatus, the following improvements may be made.

For example, as shown in fig. 3, the base 10 is provided with a mounting slot 11 for receiving the electronic locking assembly 20 and the manual unlocking assembly 30. The base 10 is further provided with a first cover plate 12 which covers the mounting groove 11 and is detachably disposed. During assembly and disassembly, the first cover plate 12 can be operated to install or adjust the components in the base 10, which is convenient.

Further, as shown in fig. 3 and 4, the mounting groove 11 includes: a main mounting area 111 area and a side mounting area 112 area. The first cover plate 12 covers the main mounting area 111. The base 10 is further provided with a second cover 13 covering the side mounting area 112 and being detachably disposed. The motor 22, the transmission shaft 23, the output shaft 24, and the unlocking slider 31 are all mounted in the main mounting area 111. The pull cord 32 is mounted in the side mounting region 112. When the pull rope 32 is assembled or disassembled, the second cover plate 13 can be independently disassembled for operation, and the assembly and the disassembly are very convenient.

In view of the complicated environment of the use scene of the charging gun, particularly, the rain, and the need for considering the waterproof performance, the sealing performance may be improved in this embodiment.

For example, as shown in fig. 3 to 5, in the present embodiment, the base 10 is further provided with a first silicone rubber pad 14 and a rubber plug 15. One end of the output shaft 24 extends to the outside of the base 10 after passing through the first silicone rubber pad 14. One end of the pulling rope 32 passes through the rubber plug 15 and then extends to the outside of the base 10. First silica gel pad 14 and plug 15 are used for the leakproofness of improve equipment, promote waterproof performance.

For example, as shown in fig. 3 to 5, the base 10 is further provided with a second silicone pad 16 between the main mounting region 111 and the side mounting region 112. The unlocking slide block 31 is arranged on the second silica gel pad 16 in a penetrating way. The second silicone rubber pad 16 is used for improving the sealing performance between the main mounting area 111 and the side mounting area 112, so that dust or liquid is prevented from entering the main mounting area 111 from the side mounting area 112 when the pull rope 32 is independently mounted or dismounted, and the waterproof performance is improved.

In addition, in the present embodiment, a sealant is provided at the peripheral edges of the first cover plate 12 and the second cover plate 13. After the glue dripping treatment, a sealing glue is formed at the peripheries of the first cover plate 12 and the second cover plate 13, so that the sealing performance of the equipment is improved, and the waterproof performance is improved.

As shown in fig. 6 and 7, the electronic locking assembly 20 is designed in a screw rod driving manner, the PCB 21 controls the motor 22 to drive the transmission shaft 23 to rotate, a screw rod transmission structure is formed between the transmission shaft 23 and the output shaft 24, the output shaft 24 linearly moves forward and backward along with the rotation of the transmission shaft 23, and one end of the output shaft 24 extending to the outside of the base 10 is a locking end, so that the electronic locking purpose is achieved. When manual unlocking is needed, a user pulls the pull rope 32 to extend to one end outside the base 10, then the unlocking slide block 31 is driven to move, the first driving portion 241 on the unlocking slide block 31 is used for driving the second driving portion 311 on the output shaft 24, then the output shaft 24 is driven to retract into the base 10, and at the moment, the transmission shaft 23 rotates reversely under the reaction force of the output shaft 24, so that the purpose of manual unlocking is achieved. The pull rope 32 and the unlocking slide block 31 of the manual unlocking assembly 30 are separated by the aid of the matching of the clamping block 321 and the clamping groove, and a user can easily separate the pull rope 32 from the unlocking slide block 31, so that the pull rope 32 is detached from the base 10, assembly and disassembly difficulty is reduced, and transportation and carrying convenience is improved.

Above-mentioned safe locking ware 100 adopts the electron locking subassembly 20 of lead screw drive formula design to realize the electron locking, and manual unblock then adopts the manual unblock that separable stay cord 32 and unblock slider 31 combination formed to realize, simple structure, the installation and the dismantlement of being convenient for to improve the convenience of transportation and carrying.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A safety catch, comprising:

a base;

an electronic locking assembly mounted on the base; the electronic locking assembly comprises: the PCB is arranged on the base, the motor is connected with the PCB, the transmission shaft is connected with the motor, and the output shaft is connected with the transmission shaft; the transmission shaft is provided with external threads; the output shaft is arranged on the base in a sliding manner; one end of the output shaft is sleeved with the transmission shaft and is provided with an internal thread matched with the external thread; the other end of the output shaft extends to the outside of the base; the output shaft is provided with a first driving part; and

a manual unlocking assembly mounted on the base; the manual unlocking assembly includes: the unlocking slide block is arranged on the base in a sliding mode, and the pull rope is connected with the unlocking slide block; the unlocking slide block is provided with a second driving part which is linked with the first driving part; one end of the unlocking slide block, which is close to the pull rope, is provided with a clamping groove; one end of the pull rope is provided with a clamping block for clamping the clamping groove; the other end of the pull rope extends to the outside of the base.

2. The safety latch of claim 1, wherein the electronic latch assembly further comprises: the first microswitch and the second microswitch are respectively connected with the PCB; the output shaft is provided with a first trigger part for triggering the first microswitch and a second trigger part for triggering the second microswitch.

3. The safety latch of claim 1 wherein the motor is parallel to the drive shaft; a rotating shaft of the motor is provided with a first gear; the transmission shaft is pivoted on the base; one end of the transmission shaft is provided with a second gear meshed with the first gear.

4. The safety lock-out mechanism of claim 1, wherein the first drive portion is provided protruding from one side of the output shaft; the second driving part is convexly arranged on one side of the unlocking slide block; and the second driving part is positioned at one end of the first driving part, which is deviated from the transmission shaft.

5. The safety latch of claim 4, wherein the manual unlatching assembly further comprises: and the elastic piece is connected between the unlocking slide block and the base.

6. The safety lock according to claim 1, wherein the base is further provided with a first silicone pad and a rubber plug; one end of the output shaft penetrates through the first silica gel pad and then extends to the outside of the base; one end of the pull rope penetrates through the rubber plug and then extends to the outside of the base.

7. The safety latch of claim 1, wherein the base defines a mounting slot for receiving the electronic latch assembly and the manual unlatching assembly; the base is also provided with a first cover plate which covers the mounting groove and is detachably arranged.

8. The safety latch of claim 7 wherein the mounting slot comprises: a main mounting area and a side mounting area; the first cover plate covers the main mounting area; the base is also provided with a second cover plate which covers the side mounting area and is detachably arranged; the motor, the transmission shaft, the output shaft and the unlocking slide block are all arranged in the main installation area; the pull cord is mounted in the side mounting region.

9. The safety latch of claim 8 wherein the base is further provided with a second silicone pad located between the main mounting area and the side mounting area; the unlocking slide block is arranged on the second silica gel pad in a penetrating mode.

10. The safety latch of claim 9 wherein a sealant is disposed around the periphery of each of the first and second cover plates.