Automatic tripping device for pulling rope
The automatic release device for the traction rope, which is electrically connected to the control box via a conductive plate, solves the problem of the lock failing to unlock automatically, enabling the lock to automatically disconnect in emergency situations and improving safety.
Patent Information
- Application Number
- CN202423167770.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The existing locking mechanism of the tow rope cannot automatically unlock in an emergency, posing a safety hazard.
An automatic release device for the traction rope was designed. It is electrically connected to the control box through a conductive plate. When the conductive wire is energized, it is short-circuited and contracts, pulling the second locking tongue to rotate and disengage from the first locking tongue, thereby causing the lock to automatically disconnect.
It enables automatic unlocking of the latch in emergency situations, avoiding security risks caused by untimely manual unlocking.
Smart Images
Figure CN223653350U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of traction ropes, and particularly relates to an automatic unlocking device for a traction rope. BACKGROUND
[0002] The anti-lost traction rope is a safety protection product, which is usually used to prevent infants / pets from getting lost or having accidents in public places. One end of the traction rope is usually provided with a lock buckle, which is connected with a traction ring buckle on a child bracelet, a strap, a schoolbag or a pet, so as to keep an adult and a child / pet in contact within a certain distance through the traction rope. At present, if the lock buckle needs to be separated from the child / pet, it can only be unlocked manually. However, in an emergency, the adult often cannot unlock the lock buckle in time, so that the traction rope between the adult and the child / pet cannot be disconnected in time, which often causes safety hazards. In order to realize automatic unlocking of the lock buckle, the present application is produced after the applicant's painstaking research. SUMMARY
[0003] The utility model provides a kind of automatic unlocking device for traction rope, and its main purpose is to overcome the problem that the lock buckle connected with the traction rope cannot be automatically unlocked.
[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0005] An automatic unlocking device for traction rope includes an upper shell, a lower shell, a rotating head, a fixed seat, a first lock tongue, a second lock tongue and a lock buckle. The upper shell and the lower shell are connected to each other. The fixed seat is located in the upper shell. The fixed seat is provided with a first rotating hole. The rear end of the rotating head is located in the first rotating hole and can rotate around the first rotating hole. The rear end surface of the rotating head is provided with a conductive plate. The first lock tongue and the second lock tongue are both elastic. The first lock tongue and the second lock tongue are both rotatably arranged in the lower shell. The front end of the lock buckle is hooked on the first lock tongue. The rear end of the lock buckle extends out of the upper shell and the lower shell. The lower shell is provided with a conductive wire electrically connected to the conductive plate. One end of the conductive wire is fixedly connected to the lower shell. The other end of the conductive wire is fixedly connected to the front end of the second lock tongue. The rear end of the second lock tongue is clamped to the left end of the first lock tongue. The conductive wire can be retracted when it is electrified. The conductive wire is retracted to make the second lock tongue rotate and separate from the first lock tongue. The first lock tongue and the second lock tongue rotate and separate from the lock buckle after they are separated.
[0006] Further, the upper shell is internally provided with a POGO PIN adapter circuit board, the POGO PIN adapter circuit board has two POGO PIN pins, the rear end surface of the conductive plate is provided with two conductive rings arranged inside and outside, each POGO PIN pin corresponds to a conductive ring and is in contact with the corresponding conductive ring, and the two POGO PIN pins are electrically connected with the two ends of the conductive wire respectively.
[0007] Further, the upper shell is internally provided with a POGO PIN adapter circuit board, the POGO PIN adapter circuit board has two POGO PIN pins, the rear end surface of the conductive plate is provided with two conductive rings arranged inside and outside, each POGO PIN pin corresponds to a conductive ring and is in contact with the corresponding conductive ring, and the two POGO PIN pins are electrically connected with the two ends of the conductive wire respectively.
[0008] Further, the upper shell is internally provided with a POGO PIN adapter circuit board, the POGO PIN adapter circuit board has two POGO PIN pins, the rear end surface of the conductive plate is provided with two conductive rings arranged inside and outside, each POGO PIN pin corresponds to a conductive ring and is in contact with the corresponding conductive ring, and the two POGO PIN pins are electrically connected with the two ends of the conductive wire respectively.
[0009] Further, the lower shell is internally provided with a connecting column, one end of the conductive wire is located on the top surface of the connecting column and is locked and connected with the connecting column through a first self-tapping screw, and the other end of the conductive wire is located on the front end top surface of the second lock tongue and is locked and connected with the second lock tongue through a second self-tapping screw.
[0010] Further, the lower shell is internally provided with two rotating wheels and two rotating wheel shafts, each rotating wheel corresponds to a rotating wheel shaft and is sleeved on the corresponding rotating wheel shaft, and the two rotating wheel shafts are arranged front and back, and the conductive wire passes around the two rotating wheels.
[0011] Further, the lower shell is internally provided with a first shaft rod, the right end of the first lock tongue is provided with a first shaft hole matched with the first shaft rod, the first shaft rod passes through the first shaft hole, the outer periphery of the first shaft rod is sleeved with a first torsional spring, the first torsional spring is located below the first lock tongue, the lower shell is internally provided with a first torsional spring abutting portion, the left end of the first lock tongue is provided with a first torsional spring clamping groove, and the two ends of the first torsional spring are in contact with the first torsional spring abutting portion and the first torsional spring clamping groove respectively.
[0012] Further, the lower shell is internally provided with a second shaft rod, the middle part of the second lock tongue is provided with a second shaft hole matched with the second shaft rod, the second shaft rod passes through the second shaft hole, the outer periphery of the second shaft rod is provided with a second torsion spring, the second torsion spring is located below the second lock tongue, the lower shell is internally provided with a second torsion spring abutting part, the rear end of the second lock tongue is provided with a second torsion spring clamping groove, and two ends of the second torsion spring abut against the second torsion spring abutting part and the second torsion spring clamping groove respectively.
[0013] Further, the rear end of the second lock tongue is provided with a clamping groove, the left end of the first lock tongue is clamped in the clamping groove, the left end surface of the first lock tongue is provided with a circular arc surface, the rear end of the second lock tongue is provided with an inclined surface, the first lock tongue is provided with a locking groove with an opening at the left end, a lock catch rod is formed on the front side of the locking groove, the length of the lock catch rod is smaller than the overall length of the first lock tongue, and the front end of the lock catch is located in the locking groove and hooks the lock catch rod.
[0014] Further, the rear end top surface of the upper shell is provided with an opening groove for accommodating the rear end of the lock catch, and the rear end of the lower shell is provided with a cutout through which one end of the lock catch passes.
[0015] As can be seen from the above description of the utility model, compared with the prior art, the utility model has the following advantages: the utility model has novel structure and ingenious design, one end of a traction rope is connected with a rotating head, the other end of the traction rope is connected with a control box, a conductive plate is electrically connected with the control box through a wire arranged in the traction rope, the conductive wire is in a short-circuit state when the conductive plate is powered on, the conductive wire will shrink when the conductive wire is in a short-circuit state, thereby pulling the second lock tongue to rotate and disengage from the first lock tongue, the first lock tongue rotates after disengaging from the second lock tongue and promotes the lock catch to disengage from the first lock tongue, at this time, the lock catch is automatically disconnected with the traction rope, and accidents caused by untimely disengagement of the traction rope are avoided. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural diagram of the utility model.
[0017] Figure 2 It is a structural exploded view of the utility model.
[0018] Figure 3 It is a structural diagram of the upper shell of the utility model.
[0019] Figure 4 It is a state diagram when the lock catch is buckled with the first lock tongue of the utility model.
[0020] Figure 5 It is a state diagram when the lock catch is disengaged from the first lock tongue of the utility model.
[0021] Figure 6 It is a use state diagram of the utility model. DETAILED DESCRIPTION
[0022] In the description of the utility model, it needs to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.
[0023] Referring to Figure 1 , Figure 2 , Figure 4 and Figure 5 , an automatic decoupling device for a traction rope comprises an upper shell 1, a lower shell 2, a rotating head 3, a fixed seat 4, a first locking tongue 5, a second locking tongue 6 and a lock 7. The upper shell 1 and the lower shell 2 are connected to each other, the fixed seat 4 is located in the upper shell 1, the fixed seat 4 is provided with a first rotating hole 41, the rear end of the rotating head 3 is located in the first rotating hole 41 and can rotate around the first rotating hole 41, the rear end face of the rotating head 3 is provided with a conductive plate 8, the first locking tongue 5 and the second locking tongue 6 are both elastic, the first locking tongue 5 and the second locking tongue 6 are both rotatably arranged in the lower shell 2, the front end of the lock 7 is hooked on the first locking tongue 5, and the rear end of the lock 7 extends out of the upper shell 1 and the lower shell 2. A conductive wire 9 electrically connected to the conductive plate 8 is arranged in the lower shell 2, one end of the conductive wire 9 is fixedly connected in the lower shell 2, and the other end of the conductive wire 9 is fixedly connected with the front end of the second locking tongue 6. The rear end of the second locking tongue 6 is clamped with the left end of the first locking tongue 5, the conductive wire 9 can be contracted when electrified, the second locking tongue 6 is rotated and separated from the first locking tongue 5 after the conductive wire 9 is contracted, and the first locking tongue 5 and the second locking tongue 6 are rotated and separated from the lock 7 after being separated.
[0024] Referring to Figure 2 , Figure 4 and Figure 5 , a POGO PIN adapter circuit board 10 is arranged in the upper shell 1, the POGO PIN adapter circuit board 10 has two POGO PIN needles 101, the rear end face of the conductive plate 8 is provided with two rings of conductive rings 81 arranged inside and outside, each POGO PIN needle 101 corresponds to a ring of conductive rings 81 and abuts against the corresponding conductive ring 81, and the two POGO PIN needles 101 are electrically connected with the two ends of the conductive wire 9 respectively.
[0025] Referring to Figure 2 and Figure 3The front end of the upper shell 1 is internally provided with an accommodating cavity 11 with an open bottom, the fixing seat 4 is located in the accommodating cavity 11, the front end surface of the upper shell 1 is provided with a second rotating hole 12 in communication with the accommodating cavity 11, and the rear end of the rotating head 3 is located in the first rotating hole 41 after penetrating through the second rotating hole 12. The rear end of the rotating head 3 is annularly provided with a positioning groove 31, the bottom of the fixing seat 4 is provided with a screw hole 42 in communication with the first rotating hole 41, the screw hole 42 is internally provided with a clamping screw 43, the top of the clamping screw 43 is matched with and located in the positioning groove 31. The cooperation between the clamping screw 43 and the positioning groove 31 makes the rotating head 3 not separated from the first rotating hole 41, and the rotating head 3 can rotate around the first rotating hole 41, the bottom of the clamping screw 43 abuts against the top surface of the lower shell 2, and the clamping screw 43 is put into the screw hole 42 from the bottom of the screw hole 42 during installation. Even when the rotating head 3 rotates, the two POGO PIN needles 101 still abut against the corresponding loop conductive loops 81.
[0026] Referring to Figure 2 to Figure 4 , the front end of the upper shell 1 is internally provided with an accommodating portion 13 with an open bottom and an inner space, the accommodating portion 13 is located at the rear side of the accommodating cavity 11, the front end of the accommodating portion 13 is provided with a placing groove 14 for placing the POGO PIN adapter circuit board 10, and the rear end surface of the accommodating cavity 11 is provided with two needle grooves 15, each needle groove 15 corresponds to a POGO PIN needle 101 and is used for penetrating through the corresponding POGO PIN needle 101. The front ends of the two POGO PIN needles 101 penetrate through the corresponding needle grooves 15 and abut against the corresponding loop conductive loops 81, the rear ends of the two POGO PIN needles 101 are respectively connected with the two ends of the conductive wire 9 through wires, and the accommodating portion 13 provides space for wire leading-out.
[0027] Referring to Figure 2 and Figure 4 , the lower shell 2 is internally provided with a connecting column 21, one end of the conductive wire 9 is located on the top surface of the connecting column 21 and is locked and connected with the connecting column 21 through a first self-tapping screw 22, and the other end of the conductive wire 9 is located on the front end top surface of the second lock tongue 6 and is locked and connected with the second lock tongue 6 through a second self-tapping screw 23. The lower shell 2 is internally provided with two rotating wheels 24 and two rotating wheel shafts 25, each rotating wheel 24 corresponds to a rotating wheel shaft 25 and is sleeved on the corresponding rotating wheel shaft 25, the two rotating wheel shafts 25 are arranged front and back, and the conductive wire 9 passes around the two rotating wheels 24. In this embodiment, the conductive wire 9 will send a short circuit and shrink when electrified, the conductive wire 9 is a titanium alloy conductive wire, the conductive wire 9 is arranged in a curved manner, and it is ensured that the conductive wire 9 has enough length to pull the front end of the second lock tongue 6 when shrinking, and the two rotating wheels 24 play a transition role for the conductive wire 9.
[0028] With reference to Figure 2 and Figure 4 , the lower shell 2 is provided with a first shaft rod 26, the right end of the first lock tongue 5 is provided with a first shaft hole 51 matched with the first shaft rod 26, the first shaft rod 26 passes through the first shaft hole 51, the outer periphery of the first shaft rod 26 is sleeved with a first torsion spring 52, and the first torsion spring 52 is located below the first lock tongue 5. The lower shell 2 is provided with a first torsion spring abutting portion 27, the left end of the first lock tongue 5 is provided with a first torsion spring clamping groove 53, the two ends of the first torsion spring 52 respectively abut against the first torsion spring abutting portion 27 and the first torsion spring clamping groove 53, and the first torsion spring 52 is arranged so that the first lock tongue 5 has elasticity.
[0029] With reference to Figure 2 and Figure 4 , the lower shell 2 is provided with a second shaft rod 28, the middle part of the second lock tongue 6 is provided with a second shaft hole 61 matched with the second shaft rod 28, the second shaft rod 28 passes through the second shaft hole 61, and the outer periphery of the second shaft rod 28 is sleeved with a second torsion spring 62. The lower shell 2 is provided with a second torsion spring abutting portion 29, the rear end of the second lock tongue is provided with a second torsion spring clamping groove 63, the two ends of the second torsion spring 62 respectively abut against the second torsion spring abutting portion 29 and the second torsion spring clamping groove 63, and the second torsion spring 62 is arranged so that the second lock tongue 6 has elasticity.
[0030] With reference to Figure 2 and Figure 4 , the rear end of the second lock tongue 6 is provided with a clamping groove 64, the left end of the first lock tongue 5 is clamped in the clamping groove 64, the left end surface of the first lock tongue 5 is provided with a circular arc surface 54, the rear end of the second lock tongue 6 is provided with an inclined surface 65, the first lock tongue 5 is provided with a locking groove 55 with an opening at the left end, a lock catch rod 56 is formed on the front side of the locking groove 55, the length of the lock catch rod 56 is less than the overall length of the first lock tongue 5, and the front end of the lock catch 7 is located in the locking groove 55 and hooks the lock catch rod 56. The rear end top surface of the upper shell 1 is provided with an opening groove 16 for accommodating the rear end of the lock catch 7, and the rear end of the lower shell 2 is provided with a cutout 20 through which one end of the lock catch 7 passes, and the opening groove 16 provides a channel for the insertion and disengagement of the lock catch 7.
[0031] With reference to Figure 1 to Figure 6The utility model discloses the design principle as follows: one end of traction rope 17 is connected with rotating head 3, the other end of traction rope 17 is connected with a control box 18, control circuit board is equipped in control box 18, battery and button are equipped on control circuit board, the button is located in the top of control box 18 and can press, the electrically conductive plate 8 and control circuit board in control box are connected through the electrically conductive wire of being equipped in traction rope 17, when electrically conductive plate 8 is electrified, makes the electrically conductive wire 9 electrification through two POGOPIN needles 101, the electrically conductive wire 9 is electrified and is in short circuit state, the electrically conductive wire 9 short circuit will contract, and then pull the front end rotation of second lock bolt 6 and make the clamping groove 64 of second lock bolt 6 and the left end of first lock bolt 5 separate, first lock bolt 5 and second lock bolt 6 separate after rotating and make lock catch 7 and the lock catch rod 56 of first lock bolt 5 separate, at this time, lock catch 7 is automatically disconnected with traction rope 17. After lock catch 7 and first lock bolt 5 separate, under the action of second torsion spring 62, second lock bolt 6 resets automatically, when lock catch 7 needs to use again, insert lock catch 7, first lock bolt 5 resets under the pressure of lock catch 7, in the process of resetting, under the cooperation of the arc surface 54 of first lock bolt 5 and the inclined surface 65 of second lock bolt 6, second lock bolt 6 will rotate automatically until the left end of first lock bolt 5 is inserted in the clamping groove 64 of second lock bolt 6, at this time, the front end of lock catch 7 is located in locking groove 55 again and hooks lock catch rod 56.
[0032] The above is only the specific embodiment of the utility model, but the design concept of the utility model does not limit to this, and the non-essential change of the utility model is all should belong to the act of infringing the protection scope of the utility model.
Claims
1. An automatic release device for a traction rope, characterized in that: The device includes an upper housing, a lower housing, a rotating head, a fixed base, a first locking tongue, a second locking tongue, and a latch. The upper and lower housings are connected to each other. The fixed base is located inside the upper housing and has a first rotating hole. The rear end of the rotating head is located inside the first rotating hole and can rotate around it. A conductive plate is provided on the rear end face of the rotating head. Both the first and second locking tongues are elastic and are rotatably disposed inside the lower housing. The front end of the latch is hooked onto the first locking tongue, and the rear end of the latch extends out of the upper and lower housings. A conductive wire electrically connected to the conductive plate is provided inside the lower housing. One end of the conductive wire is fixedly connected inside the lower housing, and the other end is fixedly connected to the front end of the second locking tongue. The rear end of the second locking tongue is engaged with the left end of the first locking tongue. When energized, the conductive wire can retract. After retraction, the conductive wire causes the second locking tongue to rotate and disengage from the first locking tongue. After disengaging from the second locking tongue, the first locking tongue rotates and disengages from the latch.
2. The automatic release device for a traction rope as described in claim 1, characterized in that: The upper housing contains a POGOPIN adapter circuit board with two POGO PIN pins. The rear end face of the conductive plate has two conductive rings arranged inside and outside. Each POGO PIN pin corresponds to one conductive ring and abuts against the corresponding conductive ring. The two POGO PIN pins are electrically connected to both ends of the conductive wire.
3. The automatic release device for a traction rope as described in claim 2, characterized in that: The upper housing has an open-bottomed receiving cavity at its front end, and the fixing seat is located in the receiving cavity. The front end face of the upper housing has a second rotating hole that communicates with the receiving cavity. The rear end of the rotating head passes through the second rotating hole and is located in the first rotating hole. The outer circumferential surface of the rear end of the rotating head is provided with a positioning groove. The bottom of the fixing seat has a screw hole that communicates with the first rotating hole. A set screw is provided in the screw hole, and the top of the set screw is adapted to the positioning groove and is located in the positioning groove.
4. The automatic release device for a traction rope as described in claim 3, characterized in that: The front end of the upper housing is provided with a receiving part that is open at the bottom and hollow inside. The receiving part is located on the rear side of the receiving cavity. The front end of the receiving part is provided with a placement slot for placing the POGO PIN adapter circuit board. The rear end face of the receiving cavity is provided with two pin slots, each pin slot corresponding to a POGO PIN pin and allowing the corresponding POGO PIN pin to pass through.
5. The automatic release device for a traction rope as described in claim 1, characterized in that: The lower housing is provided with a connecting post. One end of the conductive wire is located on the top surface of the connecting post and is locked to the connecting post by a first self-tapping screw. The other end of the conductive wire is located on the top surface of the front end of the second locking tongue and is locked to the second locking tongue by a second self-tapping screw.
6. The automatic release device for a traction rope as described in claim 5, characterized in that: The lower housing contains two rotating wheels and two rotating wheel shafts. Each rotating wheel corresponds to one rotating wheel shaft and is fitted onto the corresponding rotating wheel shaft. The two rotating wheel shafts are arranged one in front of the other, and the conductive wire passes around the two rotating wheels.
7. The automatic release device for a traction rope as described in claim 1, characterized in that: The lower housing is provided with a first shaft, and the right end of the first locking tongue is provided with a first shaft hole adapted to the first shaft. The first shaft passes through the first shaft hole, and a first torsion spring is sleeved on the outer periphery of the first shaft. The first torsion spring is located below the first locking tongue. The lower housing is provided with a first torsion spring abutment part, and the left end of the first locking tongue is provided with a first torsion spring slot. The two ends of the first torsion spring abut against the first torsion spring abutment part and the first torsion spring slot, respectively.
8. The automatic release device for a traction rope as described in claim 1, characterized in that: The lower housing is provided with a second shaft, and the middle part of the second latch is provided with a second shaft hole that is adapted to the second shaft. The second shaft passes through the second shaft hole, and a second torsion spring is sleeved on the outer periphery of the second shaft. The second torsion spring is located below the second latch. The lower housing is provided with a second torsion spring abutment part, and the rear end of the second latch is provided with a second torsion spring slot. The two ends of the second torsion spring abut against the second torsion spring abutment part and the second torsion spring slot, respectively.
9. The automatic release device for a traction rope as described in claim 1, characterized in that: The rear end of the second latch is provided with a slot, the left end of the first latch is engaged in the slot, the left end face of the first latch is provided with an arc surface, the rear end of the second latch is provided with an inclined surface, the first latch is provided with a locking groove with an open left end, a locking rod is formed on the front side of the locking groove, the length of the locking rod is less than the overall length of the first latch, and the front end of the lock is located in the locking groove and hooks the locking rod.
10. The automatic release device for a traction rope as described in claim 1, characterized in that: The upper housing has an opening groove on the top surface of its rear end for receiving the rear end of the latch, and the lower housing has a cut at its rear end for one end of the latch to pass through.