Two-gear electric pickup lock
By adopting a worm gear mechanism and ratchet pawl design, the problems of loud noise and safety hazards in pickup truck locks have been solved, achieving a quiet and reliable locking effect.
Patent Information
- Application Number
- CN202520254803.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing pickup truck locks are noisy and pose safety hazards during unlocking, especially when the tailgate is deformed or subjected to uneven force, which may cause locking failure.
The worm gear mechanism replaces the traditional lead screw mechanism, and the ratchet and pawl design enables two-position locking. Combined with the drive motor and transmission mechanism, it ensures stable locking of the tailgate.
It effectively reduces noise, improves the reliability of the lock, prevents the tailgate from failing to lock on one side, and enhances security.
Smart Images
Figure CN223750978U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lock technology field, concretely is a two gear electric pickup truck lock. BACKGROUND
[0002] Pickup truck is a kind of light cargo vehicle with no roof cargo box at the rear of cab, and the cargo box side plate is integrated with the cab. Since the tail can carry goods, the tail door can be opened, and commonly, both sides are provided with locks, and the rear tail door is opened downward, the existing lock opening uses motor screw rod cooperation, and the opening process is noisy, and the lock has only one gear locking, when the tail door is deformed or the both sides are unevenly stressed, the lock on one side of the tail door can fail to lock, and there is a security risk. SUMMARY
[0003] To solve the above problems, the utility model provides a two gear electric pickup truck lock, which can realize reliable locking and has good mute effect.
[0004] The technical scheme is as follows: a two gear electric pickup truck lock, comprising a lock body mounting seat and a lock shell, characterized in that the front surface of the lock body mounting seat is provided with a matched ratchet wheel and pawl, the ratchet wheel is provided with a pressure slot, a first locking block and a second locking block matched with the pressure block on the pawl, the back surface of the lock body mounting seat is provided with a driving mechanism and a transmission mechanism, the driving mechanism comprises a driving motor and a worm gear mechanism, the worm gear mechanism comprises a worm connected with the driving motor and an arc-shaped worm wheel rotatably arranged, the arc-shaped worm wheel is provided with a first lever, the transmission mechanism comprises a first rotary transmission member and a second rotary transmission member, the swinging of the first lever realizes the rotation of the first rotary transmission member, the first rotary transmission member drives the second rotary transmission member to rotate, and the second rotary transmission member drives the pawl to rotate to realize unlocking.
[0005] Further characterized in that the driving motor and the worm gear mechanism are installed in a driving box, and two limiting buffer blocks matched with the arc-shaped worm wheel are installed in the driving box.
[0006] The driving box comprises a driving upper box and a driving lower box welded by ultrasonic waves, and a sealing ring is arranged at the connecting portion, and the inner walls of the driving upper box and the driving lower box are respectively provided with arc-shaped support ribs matched with the arc-shaped worm wheel.
[0007] A fixed rotating shaft is installed in the driving box, the arc-shaped worm wheel is provided with an intermediate seat matched with the fixed rotating shaft, the top of the intermediate seat penetrates the driving box and is fixedly connected with the first lever, and a first torsional spring is sleeved on the intermediate seat.
[0008] The first rotation transmission part is rotatably installed on the outer wall of the driving box and is provided with a second torsion spring, the first rotation transmission part is a V-shaped part and two ends of the V-shaped part are respectively provided with bent pieces, one of the bent pieces is matched with the first lever, and the other bent piece is matched with a second lever on the second rotation transmission part, the second rotation transmission part is rotatably installed on the inner wall of the lock shell and is provided with a third torsion spring, and the second rotation transmission part is further provided with a lever piece matched with a third lever on the pawl;
[0009] The outer wall of the driving box is provided with a limiting block matched with the first rotation transmission part
[0010] The pawl is rotatably installed on the lock body mounting seat through a pawl rotating shaft and is provided with a fifth torsion spring.
[0011] The pawl and the ratchet wheel are both provided with sensors.
[0012] After the utility model is adopted, the traditional screw rod mechanism is cancelled, and a worm and gear structure is used, so that noise generation can be effectively reduced, and the first locking block and the second locking block are arranged on the ratchet wheel, and two gears can be locked by cooperation of the pawl, the tail door ends cannot appear the problem of virtual hanging, and the tail door can be smoothly locked and cannot be separated. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a front schematic diagram of the utility model without a lock shell;
[0015] Figure 3 It is a back schematic diagram of the utility model without a lock shell;
[0016] Figure 4 It is a structural schematic diagram of a transmission mechanism;
[0017] Figure 5 It is a structural schematic diagram of a driving box;
[0018] Figure 6 It is a torsion spring schematic diagram of a ratchet wheel and pawl (omitting the ratchet wheel). DETAILED DESCRIPTION
[0019] See Figures 1 to 6As shown, a two-stage electric pickup truck lock, which comprises a lock body mounting seat 1 and a lock shell 2, the front of the lock body mounting seat 1 is provided with a matched ratchet wheel 3 and pawl 4, the ratchet wheel 3 is provided with a pressure turning groove 5, a first locking block 7 and a second locking block 8 matched with the pressure block 6 on the pawl 4, realizing two-stage lock function, when the pressure block 6 presses the first locking block 7, it is a fully locked state, when the pressure block 6 presses the second locking block 8, it is a half-locked state (can hook the lock catch on the tail door, will not fall off), the back of the lock body mounting seat 1 is provided with a driving mechanism and a transmission mechanism, the driving mechanism comprises a driving motor 9 and a worm gear mechanism 10, the driving motor 9 and the worm gear mechanism are installed in a driving box 11, the worm gear mechanism comprises a worm 12 connected with the driving motor 9 and an arc-shaped worm wheel 13 rotatably arranged, a fixed rotating shaft is installed in the driving box 11, the arc-shaped worm wheel 13 is provided with an intermediate seat 14 matched with the fixed rotating shaft, the top of the intermediate seat 14 penetrates through the driving box 11 and is fixedly connected with a first lever 15, the intermediate seat 14 is sleeved with a first torsion spring 16. Two limiting buffer blocks 17 matched with the arc-shaped worm wheel 13 are installed in the driving box 11, which can limit the arc-shaped worm wheel 13 and have certain buffer after rotation, so as to avoid collision noise; the driving box 11 comprises a driving upper box and a driving lower box which are ultrasonically welded and are provided with a sealing ring at the connection position, which can effectively reduce noise transmission, and the inner walls of the driving upper box and the driving lower box are respectively provided with arc-shaped support ribs 18 matched with the arc-shaped worm wheel 13, which can prevent the arc-shaped worm wheel 13 from moving axially and make it rotate stably.
[0020] The transmission mechanism comprises a first rotary transmission member 19 and a second rotary transmission member 20, the first rotary transmission member 19 is rotatably installed on the outer wall of the driving box 11 and is provided with a second torsion spring 21, the first rotary transmission member 19 is a V-shaped piece and is provided with two bent pieces 22 at two ends, one of which is matched with the first lever 15, and the other is matched with a second lever 23 on the second rotary transmission member 20, the second rotary transmission member 20 is rotatably installed on the inner wall of the lock shell 2 and is provided with a third torsion spring 24, and the second rotary transmission member 20 is further provided with a lever 26 matched with a third lever 25 on the pawl 4; the swing of the first lever 15 realizes the rotation of the first rotary transmission member 19, then the bent piece of the first rotary transmission member 19 is matched with the second lever 23 to drive the second rotary transmission member 20 to rotate, when the second rotary transmission member 20 rotates, the lever 26 is matched with the third lever 25 to drive the pawl 4 to rotate, the ratchet wheel 3 is no longer blocked and can be separated outward to release the lock catch.
[0021] The outer wall of the driving box 11 is provided with a limiting block 27 corresponding to the first rotary transmission member 19.
[0022] The ratchet wheel 3 is installed on the lock body mounting seat 1 through a ratchet wheel rotating shaft 28 and is provided with a fourth torsion spring 29, and the pawl 4 is installed on the lock body mounting seat 1 through a pawl rotating shaft 30 and is provided with a fifth torsion spring 31. The pawl 4 and the ratchet wheel 3 are both provided with a sensor 32.
[0023] Because the tail door is locked on both sides, when the tail door is closed, when one side is completely locked (the pressing block 6 presses the first locking block 7), the other side is not completely locked due to tail door deformation or other reasons, at this time, the pressing block 6 presses the second locking block 8, which can also lock the lock catch.
Claims
1. A two-stage electric deadbolt lock comprising a lock body mounting base and a lock housing, characterized in that, The front surface of the lock body mounting seat is provided with a matched ratchet wheel and pawl, the ratchet wheel is provided with a pressure turning groove, first and second locking blocks matched with the pressure blocks on the pawl, the back surface of the lock body mounting seat is provided with a driving mechanism and a transmission mechanism, the driving mechanism comprises a driving motor and a worm and gear mechanism, the worm and gear mechanism comprises a worm connected with the driving motor and an arc-shaped worm wheel rotatably arranged, the arc-shaped worm wheel is provided with a first lever, the transmission mechanism comprises first and second rotary transmission members, the swinging of the first lever realizes the rotation of the first rotary transmission member, the first rotary transmission member drives the second rotary transmission member to rotate, and the second rotary transmission member drives the pawl to rotate to realize unlocking.
2. A two-stage electrically operated truck latch according to claim 1, wherein, The driving motor and the worm and gear mechanism are mounted in a driving box, and two limiting buffer blocks matched with the arc-shaped worm wheel are mounted in the driving box.
3. A two-stage electrically powered tailgate lock according to claim 2, wherein, The driving box comprises an ultrasonic welded driving upper box and a driving lower box, and a sealing ring is arranged at the connecting position, and the inner walls of the driving upper box and the driving lower box are respectively provided with arc-shaped support ribs matched with the arc-shaped worm wheel.
4. A two-stage electrically powered tailgate lock according to claim 3, wherein, A fixed rotating shaft is mounted in the driving box, the arc-shaped worm wheel is provided with an intermediate seat matched with the fixed rotating shaft, the top of the intermediate seat penetrates through the driving box and is fixedly connected with the first lever, and the intermediate seat is sleeved with a first torsional spring.
5. A two-stage electrically powered tailgate lock according to claim 4, wherein, The first rotary transmission member is rotatably mounted on the outer wall of the driving box and is provided with a second torsional spring, the first rotary transmission member is a V-shaped member and is provided with two bent pieces at two ends, one of the bent pieces is matched with the first lever, and the other bent piece is matched with a second lever on the second rotary transmission member, the second rotary transmission member is rotatably mounted on the inner wall of the lock shell and is provided with a third torsional spring, and the second rotary transmission member is further provided with a lever piece matched with a third lever on the pawl.
6. A two-stage electrically powered tailgate lock according to claim 5, wherein, The outer wall of the driving box is provided with a limiting block corresponding to the first rotary transmission member.
7. The two-stage electrically powered tailgate lock of claim 1, wherein, The ratchet wheel is mounted on the lock body mounting seat through a ratchet wheel rotating shaft and is provided with a fourth torsional spring, and the pawl is mounted on the lock body mounting seat through a pawl rotating shaft and is provided with a fifth torsional spring.
8. The two-stage electrically powered tailgate lock of claim 1, wherein, The pawl and the ratchet wheel are both provided with sensors.