Unlocking mechanism

Abstract

The utility model discloses an unlocking mechanism which comprises a shell, an unlocking rod and a pull rope assembly, the unlocking rod comprises a rod body and a pull part which are connected with each other, the pull part comprises two extending arms extending in the axial direction, the tail ends of the extending arms are folded back towards the position between the two extending arms to form two symmetrical blocking arms, and the two blocking arms are connected with the shell. The pull rope is pulled to enable the clamping head to abut against the ends of the blocking arms, the unlocking rod is pulled through the blocking arms to linearly slide in the installation position, the clamping head can rapidly stretch into the sliding groove through the two blocking arms, the blocking arms are elastically deformed under the jacking force of the clamping head so that the clamping head can pass through, and then the clamping head is reset to be in a free state. The diameter of the clamping connector is larger than the distance between the ends of the two blocking arms, the clamping connector is clamped by the ends of the two blocking parts, the clamping connector is prevented from being separated from the sliding groove, real-time effective connection between the pull rope assembly and the unlocking rod is guaranteed, the clamping connector can directly and rapidly stretch into the sliding groove from the outside of the shell, the pull rope installation process is simplified, and the installation efficiency is improved. And a new pull rope assembly can be conveniently replaced after the pull rope assembly is damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic lock technical field especially relates to a mechanism of unlocking. BACKGROUND

[0002] In the prior art, a charging seat for matching with a charging gun is arranged on a new energy vehicle to charge a vehicle-mounted battery. In order to prevent the charging gun from being separated from the charging seat accidentally during charging, an electronic lock is usually installed on the charging seat. During charging, the electronic lock locks the charging gun inserted into the charging seat on the charging seat to prevent the charging gun from being separated from the charging seat accidentally and ensure the safety during charging. In the prior art, the electronic lock usually comprises a housing, a lock rod installed in the housing, an unlocking rod connected with the tail of the lock rod, and a pull rope connected with the unlocking rod. When the lock rod is moved to a locking position, the head of the lock rod is engaged with a pin hole on the charging gun inserted into the charging seat to prevent the charging gun from being pulled out of the charging seat. When the lock rod is moved to an unlocking position, the head of the lock rod is separated from the pin hole on the charging gun inserted into the charging seat to allow the charging gun to be pulled out of the charging seat. When the electronic lock fails to automatically drive the lock rod to move from the locking position to the unlocking position, the unlocking rod can be used to drive the lock rod to reset to the unlocking position by pulling the pull rope, thereby realizing manual unlocking.

[0003] In the prior art, in order to facilitate pulling the pull rope, a sliding groove is arranged on the unlocking rod, and the head of the pull rope needs to be installed in the sliding groove in advance. After the pull rope body and the head of the pull rope are damaged, the upper shell and the lower shell of the electronic lock need to be disassembled, and a new pull rope needs to be installed in the sliding groove. Moreover, a protective sleeve is usually sleeved on the pull rope and is clamped into a clamping hole between the upper shell and the lower shell of the electronic lock. The installation is complex and time-consuming. How to easily and quickly install, maintain and replace the pull rope and quickly realize the clamping between the protective sleeve and the shell has become a technical problem to be solved in the technical field. SUMMARY

[0004] Therefore, the utility model aims at providing a mechanism of unlocking to solve the technical problems mentioned in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a mechanism of unlocking, which comprises a housing, an unlocking rod and a pull rope assembly, the housing is provided with a mounting position, the unlocking rod and part of the pull rope assembly are arranged in the mounting position,

[0006] The unlocking rod comprises a rod body and a pulling part connected with each other, the rod body is provided with an axial sliding groove, the pulling part comprises two extension arms extending in the axial direction, the extension arms are both folded back at the ends to form two symmetrical blocking arms between the two extension arms,

[0007] The pull rope assembly comprises a pull rope and a fixing sleeve sleeved outside the pull rope, one end of the pull rope is provided with a clamping joint, the clamping joint is slidably arranged in the sliding groove and abuts against the end of the two blocking arms, the diameter of the clamping joint is greater than the distance between the ends of the two blocking arms, and the pull rope is located between the ends of the two blocking arms.

[0008] Pulling the pull rope makes the clamping joint abut against the end of the blocking arm, and the unlocking rod is linearly slid in the mounting position through the blocking arm.

[0009] Optionally, the shell is provided with a mounting hole, and the fixing sleeve is clamped and connected with the shell outside the shell.

[0010] Optionally, the axis of the sliding groove passes through the symmetry plane of the two blocking arms.

[0011] Optionally, the two blocking arms comprise two connecting arms which are once vertically bent inward from the ends of the two extending arms, and two stopping arms which are twice bent from the ends of the two connecting arms to the two extending arms.

[0012] Optionally, the gap between the two stopping arms gradually decreases from the starting end to the free end.

[0013] Optionally, the locking rod is further arranged on the shell, a locking hole is arranged on the shell for the locking rod to pass through, the other end of the rod body is connected with the locking rod, and the pull rope drives the unlocking rod to retract the locking rod.

[0014] Optionally, a guide strip is arranged on the mounting position in the length direction of the unlocking rod, and a guide groove is arranged on the rod body and matched with the guide strip.

[0015] Optionally, a guide block is arranged on the unlocking rod, the guide block is matched with the gap of the mounting position, and the guide block plays a guiding role in the sliding process of the unlocking rod in the mounting position.

[0016] Optionally, the rod body and the pulling part are in a split structure and are screwed through a threaded structure.

[0017] Optionally, a double gear is further arranged in the shell, a rack is arranged on the end of the rod body away from the pulling part, the rack is in transmission connection with the double gear,

[0018] The double gear rotates to drive the unlocking rod to translate and the locking rod to extend through the rack, the pull rope drives the rack to linearly move to make the locking rod retract and the double gear return to the original position.

[0019] The utility model discloses the beneficial effects of:

[0020] 1. The utility model discloses a card joint of pull rope does not need to be installed into the sliding slot under the condition that the shell is opened, and enters between the end of two blocking arms outside the shell, because the two symmetrical blocking arms have elasticity, after the blocking arm allows the card joint to enter into the sliding slot and the elastic recovery of the blocking arm makes the distance between the end of the blocking arm less than the diameter of the card joint, the card joint is locked in the sliding slot, and the card joint is abutted with the end of the blocking arm by pulling the pull rope, and the unlocking lever is linearly slid in the installation position through the blocking arm, which is simple in structure, convenient to install, and the elasticity of the blocking arm can also slow down the resistance that the card joint receives in the process of extending into the sliding slot through the two blocking arms, protects the card joint structure and prolongs the service life of the card joint.

[0021] 2. Generally, the head of the pull rope is installed into the sliding slot first, and then the sheath sleeved on the pull rope is clamped into the clamping hole between the upper shell and the lower shell of the electronic lock, which is complicated to install and takes a long time, and the sheath of the utility model is clamped with the shell outside the shell, the pull rope can directly extend into the shell from the outside of the shell and extend into the sliding slot through the end of the two blocking arms, the quick installation of the pull rope and the sliding slot on the unlocking lever can be realized without opening the shell, and it is also convenient to quickly replace the new pull rope assembly after the pull rope assembly is damaged, and the overall structure is simple and convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

[0023] Figure 1 It is the exploded structural schematic drawing of the unlocking mechanism of the utility model;

[0024] Figure 2 It is the installation structural schematic drawing of the pull rope assembly and the unlocking lever of the utility model;

[0025] Figure 3 It is the exploded schematic drawing of part structure of the unlocking mechanism of the utility model;

[0026] Figure 4 It is the structural schematic drawing of the guide groove of the utility model guide strip cooperation;

[0027] Figure 5 It is the structural schematic drawing of the utility model rod body and pull part for split.

[0028] The figures are indicated as follows:

[0029] 10. Housing; 11. Mounting position; 12. Mounting hole; 13. Locking hole; 14. Guide bar; 20. Unlocking rod; 21. Pulling part; 211. Extension arm; 212. Connecting arm; 213. Stop arm; 214. Screw; 22. Rod body; 221. Slide groove; 222. Guide groove; 223. Guide block; 224. Rack; 225. Threaded hole; 23. Locking rod; 30. Pull rope assembly; 31. Pull rope; 311. Snap connector; 32. Fixing sleeve; 40. Double gear. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] An unlocking mechanism, such as Figures 1-5 As shown, the device includes a housing 10, an unlocking lever 20, and a pull rope 31 assembly 30. The housing 10 has a mounting position 11, and the unlocking lever 20 and part of the pull rope 31 assembly 30 are disposed within the mounting position 11. The unlocking lever 20 includes a rod body 22 and a pulling part 21 connected to each other. The rod body 22 has an axial groove 221. The pulling part 21 includes two axially extending extension arms 211, the ends of which are folded back between the two extension arms 211 to form two symmetrical blocking arms. The pull rope 31 assembly 30... It includes a pull rope 31 and a fixing sleeve 32 sleeved on the pull rope 31. One end of the pull rope 31 is provided with a locking connector 311. The locking connector 311 is slidably disposed in the slide groove 221 and can abut against the ends of the two blocking arms. The diameter of the locking connector 311 is larger than the distance between the ends of the two blocking arms. The pull rope 31 is located between the ends of the two blocking arms. Pulling the pull rope 31 causes the locking connector 311 to abut against the end of the blocking arm, and the unlocking rod 20 is pulled linearly within the mounting position 11 by the blocking arm.

[0035] In the prior art, a charging seat for matching with a charging gun is arranged on a new energy vehicle to charge a vehicle-mounted battery. In order to prevent the charging gun from being separated from the charging seat accidentally during charging, an electronic lock is usually arranged on the charging seat. During charging, the electronic lock locks the charging gun inserted into the charging seat to prevent the charging gun from being separated from the charging seat accidentally, thereby ensuring the safety during charging. In the prior art, the electronic lock usually comprises a housing 10, a lock rod 23 arranged in the housing 10, an unlocking rod 20 connected with the tail of the lock rod 23, and a pull rope 31 connected with the unlocking rod 20. When the lock rod 23 is moved to a locking position, the head of the lock rod 23 is engaged with a pin hole on the charging gun inserted into the charging seat to prevent the charging gun from being pulled out of the charging seat. When the lock rod 23 is moved to an unlocking position, the head of the lock rod 23 is separated from the pin hole on the charging gun inserted into the charging seat to allow the charging gun to be pulled out of the charging seat. When the electronic lock fails to automatically drive the lock rod 23 to move from the locking position to the unlocking position, the unlocking rod 20 can be pulled to reset the lock rod 23 to the unlocking position, thereby realizing manual unlocking.

[0036] In the prior art, in order to facilitate pulling of the pull rope 31, a sliding groove 221 is arranged on the unlocking rod 20, and the head of the pull rope 31 needs to be installed in the sliding groove 221 in advance before the upper shell and the lower shell of the electronic lock are buckled. After the rope body of the pull rope 31 and the head of the pull rope 31 are damaged, the upper shell and the lower shell of the electronic lock need to be disassembled, and a new pull rope 31 needs to be installed in the sliding groove 221. Moreover, a protective sleeve is usually sleeved on the pull rope 31 and is clamped into a clamping hole between the upper shell and the lower shell of the electronic lock. The installation is complicated and time-consuming. How to easily and quickly install, maintain and replace the pull rope 31 and quickly realize clamping between the protective sleeve and the housing 10 has become a technical problem to be solved in the technical field.

[0037] The clamping head 311 of the pull rope 31 of the utility model does not need to be installed in the sliding groove 221 in the state that the housing 10 is opened, but enters between the end portions of the two blocking arms outside the housing 10. Since the two symmetrically arranged blocking arms are elastic, the blocking arms are elastically deformed to allow the clamping head 311 to enter the sliding groove 221, and the elastic recovery of the blocking arms makes the distance between the end portions of the blocking arms less than the diameter of the clamping head 311, so that the clamping head 311 is locked in the sliding groove 221. Pulling the pull rope 31 makes the clamping head 311 abut against the end portions of the blocking arms, and the blocking arms pull the unlocking rod 20 to slide linearly in the installation position 11. The structure is simple and convenient to install. Moreover, the elasticity of the blocking arms can also slow down the resistance that the clamping head 311 receives during the process of extending into the sliding groove 221 through the two blocking arms, protect the structure of the clamping head 311, and prolong the service life of the clamping head 311.

[0038] In some embodiments, as Figure 1 and Figure 3As shown, the shell 10 is provided with a mounting hole 12, and the fixing sleeve 32 is clamped to the shell 10 outside the shell 10.

[0039] The sheath is clamped to the shell 10 outside the shell 10, the pull rope 31 can directly extend into the shell 10 from the outside of the shell 10 and extend into the sliding groove 221 through the ends of the two blocking arms, the pull rope 31 and the sliding groove 221 on the unlocking rod 20 can be quickly installed without opening the shell 10, and the pull rope 31 assembly 30 can be quickly replaced after the pull rope 31 assembly 30 is damaged, the overall structure is simple, and the installation is convenient.

[0040] In some embodiments, as shown in Figures 1-3 As shown, the axis of the sliding groove 221 passes through the symmetry plane of the two blocking arms.

[0041] The design is to make the clamping head 311 of the pull rope 31 accurately extend into the sliding groove 221 between the two blocking arms, and facilitate subsequent pulling of the pull rope 31, ensure that the pull rope 31 is in a straight line, and pull the unlocking rod 20 to slide linearly.

[0042] In some embodiments, as shown in Figure 2 As shown, the two blocking arms include two connecting arms 212 which are once vertically bent inward from the ends of the two extension arms 211, and two stop arms 213 which are twice bent from the ends of the two connecting arms 212 to the two extension arms 211. Further, the gap between the two stop arms 213 gradually decreases from the starting end to the free end.

[0043] The structure is designed to enable the clamping head 311 to quickly slide from the sliding groove 221 to abut the ends of the blocking arms during pulling of the pull rope 31, to be limited in the sliding groove 221 by the ends of the two blocking arms, to be able to pull the unlocking rod 20 to slide linearly in the mounting position 11 by the blocking arms, to be able to quickly guide the clamping head 311 from the relatively large gap to the small gap after the clamping head 311 is damaged, to re-enter the sliding groove 221, to enable installation of the new pull rope 31 and the sliding groove 221, and to ensure the real-time effectiveness of the manual unlocking structure when the clamping head 311 is locked in the sliding groove 221 and is difficult to separate from the ends of the two blocking arms which are like barbs.

[0044] In some embodiments, as shown in Figure 2 As shown, the shell 10 is provided with a mounting hole 12, and the fixing sleeve 32 is clamped to the shell 10 outside the shell 10.

[0045] The other end of the rod body 22 is connected with the lock rod 23, which increases the function of the lock rod 23 of the unlocking rod 20, simplifies the manufacturing process of the product, improves the manufacturing efficiency, and can retract the lock rod 23 by pulling the pull rope 31 through the unlocking rod 20, thereby realizing quick manual unlocking.

[0046] In some embodiments, as shown in Figures 2-4 The mounting position 11 is provided with a guide strip 14 in the length direction of the unlocking rod 20, and the rod body 22 is provided with a guide groove 222 matched with the guide strip 14.

[0047] The cooperation between the guide strip 14 and the guide groove 222 can play a guiding role in the straight sliding process of the unlocking rod 20 pulled by the pull rope 31.

[0048] In some embodiments, as shown in Figure 1 The unlocking rod 20 is provided with a guide block 223 matched with the mounting position 11 and playing a guiding role in the sliding process of the unlocking rod 20 in the mounting position 11.

[0049] The guide block 223 can play a guiding role in the straight sliding process of the unlocking rod 20 pulled by the pull rope 31, so as to ensure the straight movement of the unlocking rod 20 in the mounting position 11 according to the predetermined movement track without deviation.

[0050] In some embodiments, as shown in Figure 5 The rod body 22 and the pulling part 21 are in a split structure and are connected through a threaded structure.

[0051] The pulling part 21 is connected with a screw rod 214, and the rod body 22 is provided with a threaded hole 225. The screw rod 214 and the threaded hole 225 are screwed to connect and fix the pulling part 21 and the rod body 22. The split structure can enable one or both of the pulling part 21 and the rod body 22 to be damaged and worn, so that they can be quickly disassembled, repaired and replaced, thereby prolonging the overall service life.

[0052] In some embodiments, as shown in Figure 1 Further comprising a double gear 40 arranged in the shell 10, a rack 224 is arranged on the end of the rod body 22 away from the pulling part 21, the rack 224 is in transmission connection with the double gear 40, the rotation of the double gear 40 drives the unlocking rod 20 to translate and the lock rod 23 to extend, the pulling of the pull rope 31 drives the pulling part 21 to move linearly, the rack 224 is driven to move linearly, the lock rod 23 is retracted, and the double gear 40 returns to the original position.

[0053] While specific embodiments of the application have been described in detail, those familiar with the art will appreciate that the examples given are by way of example and are not meant to limit the scope of the application. Those skilled in the art will recognize or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the application described herein. It is therefore intended that the scope of the application be determined by the following claims.

Claims

1. An unlocking mechanism, characterized in that, The application relates to a lock rod and a pull rope assembly, which comprise a shell, an unlocking rod and the pull rope assembly, the shell is provided with a mounting position, the unlocking rod and part of the pull rope assembly are arranged in the mounting position, the unlocking rod comprises a rod body and a pulling part which are connected with each other, an axial sliding groove is arranged on the rod body, the pulling part comprises two extension arms which extend in the axial direction, the two extension arms are folded back at the ends of the two extension arms to form two symmetrical blocking arms, the pull rope assembly comprises a pull rope and a fixing sleeve which is sleeved on the pull rope, one end of the pull rope is provided with a clamping joint, the clamping joint is arranged in the sliding groove in a sliding mode and can abut against the ends of the two blocking arms, the diameter of the clamping joint is larger than the distance between the ends of the two blocking arms, and the pull rope is located between the ends of the two blocking arms, the pull rope is pulled to make the clamping joint abut against the ends of the blocking arms, and the unlocking rod is pulled in the mounting position in a linear sliding mode through the blocking arms.

2. A mechanism according to claim 1, wherein, The shell is provided with a mounting hole, and the fixing sleeve is clamped and connected with the shell outside the shell.

3. The mechanism of claim 1, wherein, The axis of the sliding groove passes through the symmetrical surface of the two blocking arms.

4. The mechanism of claim 1, wherein, The two blocking arms comprise two connecting arms which are once vertically folded inward from the ends of the two extension arms and two stop arms which are twice folded from the ends of the two connecting arms to the space between the two extension arms.

5. A mechanism according to claim 4, wherein, The gap between the two stop arms gradually decreases from the starting end to the free end.

6. The mechanism of claim 1, wherein, The application further comprises a lock rod, a lock hole is arranged on the shell for the lock rod to pass through, the other end of the rod body is connected with the lock rod, and the pull rope pulls the unlocking rod to drive the lock rod to retract.

7. The mechanism of claim 1, wherein, A guide strip is arranged on the unlocking rod in the length direction of the unlocking rod, and a guide groove is arranged on the rod body and matched with the guide strip.

8. The mechanism of claim 1, wherein, A guide block is arranged on the unlocking rod, the guide block is matched with the gap of the mounting position, and the guide block plays a guiding role in the sliding process of the unlocking rod in the mounting position.

9. The mechanism of claim 1, wherein, The rod body and the pulling part are in a split structure and are screwed through a threaded structure.

10. The mechanism of claim 6, wherein, A double gear is arranged in the shell, a rack is arranged on the end of the rod body away from the pulling part, and the rack is in transmission connection with the double gear, the double gear rotates to drive the unlocking rod to translate and the lock rod to extend through the rack, the pull rope pulls the pulling part to drive the rack to move linearly, so that the lock rod retracts and the double gear returns to the original position.

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