Rear lock body of rolling gate

Abstract

The utility model discloses a roller shutter rear lock body which comprises a shell, a shifting block gear, a left push-pull rod and a right push-pull rod are arranged in the shell, racks meshed with the shifting block gear are arranged at one end of the left push-pull rod and one end of the right push-pull rod, the left push-pull rod is located above the shifting block gear, and the right push-pull rod is located below the shifting block gear. The other end of the left push-pull rod extends out of the left side of the shell, and the other end of the right push-pull rod extends out of the right side of the shell. According to the utility model, the functions of electric unlocking and manual unlocking can be realized, and by utilizing the clutch function of the clutch gear set in the shell, the clutch gear set can be in meshing transmission with the third gear pair during electric unlocking, and the clutch gear set cannot be in meshing transmission with the third gear pair during manual unlocking. The rear lock body of the rolling gate is not provided with a control module for controlling the motor, the control module is arranged on the front lock body, the thickness of the rear lock body can be reduced, and the rear lock body can be conveniently installed on the rolling gate.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a rear lock body for a rolling shutter door. Background Art

[0002] At present, the locks installed on rolling shutter doors in warehouses, garages, etc. are all mechanical: after inserting the key and turning the key, the lock core rotates together, and the accessories fixed on the lock core drive the bolt movements on both sides, so as to realize the unlocking or locking action. Both unlocking and locking require a mechanical key to unlock. If you forget to bring the key, you won't be able to open the door lock, causing inconvenience in use.

[0003] There is a kind of rolling shutter door lock, which is a utility model patent with the Chinese patent application number 2022221169683. This rolling shutter door lock is provided with a fingerprint module on the lock body and can unlock through fingerprints, solving the above-mentioned disadvantages of unlocking with a key. However, because the fingerprint module is added to the lock body, the thickness of the lock body is relatively thick, while the rolling shutter door itself is relatively thin. Therefore, its installation will have limitations. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies existing in the prior art, the purpose of the utility model is to provide a rear lock body for a rolling shutter door. The rear lock body of the rolling shutter door can cooperate with the front lock body to realize multiple opening methods. The rear lock body of the rolling shutter door is installed on the inner side of the rolling shutter door, and the front lock body is installed on the outer side of the rolling shutter door. The rear lock body of the rolling shutter door is electrically connected to the front lock body. A touch screen, a fingerprint module or a face recognition module can be set on the front lock body. Digital keys can be set on the touch screen, and the unlocking of the motor can be controlled by inputting the correct password. Inputting the correct fingerprint on the fingerprint module can control the unlocking of the motor. The face recognition module can recognize face images and control the unlocking of the motor through face recognition.

[0005] The object of the present utility model is achieved by the following technical solutions: A rear lock body for a rolling shutter door, comprising a housing. Inside the housing, there are a block gear, a left push rod and a right push rod. One end of the left push rod and the right push rod is provided with a rack meshing with the block gear. The left push rod is located above the block gear, and the right push rod is located below the block gear. The other end of the left push rod extends out from the left side of the housing, and the other end of the right push rod extends out from the right side of the housing. Inside the housing, there are also a motor, a first gear pair, a second gear pair, a clutch gear set and a third gear pair. The clutch gear set is located between the second gear pair and the third gear pair. The first gear pair is in meshing transmission with the second gear pair, the second gear pair is in meshing transmission with the clutch gear set, and the output shaft of the motor drives the first gear pair through a worm. The clutch gear set can realize the switching between two unlocking methods: manual unlocking and electric unlocking. When manually unlocking or locking, the clutch gear set is in a separated state from the third gear pair. When electrically unlocking or locking, the clutch gear set is in a meshing state with the third gear pair.

[0006] As an improvement of the rear lock body for a rolling shutter door of the present utility model, a PCB board and a battery box are further provided inside the housing. A battery is provided inside the battery box. The PCB board is electrically connected to the battery and the motor, and the battery provides power for the motor.

[0007] As an improvement of the rear lock body for a rolling shutter door of the present utility model, when the motor unlocks, the clutch gear set can be in meshing transmission with the third gear pair;

[0008] When the block gear is rotated by a key or by a knob, the clutch gear set is not in meshing with the third gear pair.

[0009] As an improvement of the rear lock body for a rolling shutter door of the present utility model, the clutch gear set includes a clutch drive gear, a gear shaft, and a clutch bracket movably sleeved on the gear shaft. The gear shaft is fixedly connected to the clutch drive gear. The clutch bracket is provided with a first clutch gear, a second clutch gear and a clutch drive gear. The clutch drive gear is in meshing transmission with the first clutch gear and the second clutch gear respectively, and the clutch drive gear is connected to the gear shaft;

[0010] When locking by the motor, the first clutch gear is in meshing transmission with the third gear pair. The motor rotates forward and drives the first gear pair through a worm. The first gear pair drives the second gear pair. The second gear pair drives the clutch drive gear. After the clutch drive gear drives the clutch bracket to rotate by a certain angle, the first clutch gear is in meshing transmission with the third gear pair. The third gear pair drives the block gear to rotate. The rotation of the block gear can drive the left push rod and the right push rod to extend out simultaneously for locking;

[0011] When unlocking through the motor, the second clutch gear meshes with and drives the third gear pair. The motor rotates in reverse and drives the first gear pair through a worm. The first gear pair drives the second gear pair, the second gear pair drives the clutch drive gear, and after the clutch drive gear drives the clutch bracket to rotate by a certain angle, the second clutch gear meshes with and drives the third gear pair. The third gear pair drives the block gear to rotate, and the rotation of the block gear can simultaneously drive the left push rod and the right push rod to retract into the housing to unlock the door;

[0012] As an improvement to the rear lock body of the rolling shutter door of the present utility model, the first gear pair includes a first spur gear and a helical gear arranged coaxially, and the helical gear meshes with and drives the worm;

[0013] The second gear pair includes a second spur gear and a third spur gear arranged coaxially. The second spur gear meshes with the first spur gear, and the third spur gear meshes with the clutch drive gear;

[0014] The third gear pair includes a fourth spur gear and a fifth spur gear arranged coaxially, and the fifth spur gear meshes with the block gear.

[0015] As an improvement to the rear lock body of the rolling shutter door of the present utility model, a Hall sensor is provided on the PCB board, and a magnet that generates induction with the Hall sensor is provided on either the left push rod or the right push rod. When the magnet generates induction with the Hall sensor, the motor stops driving the block gear.

[0016] As an improvement to the rear lock body of the rolling shutter door of the present utility model, a keyhole is provided at one end of the block gear. The middle width of the keyhole is larger than the widths at both ends. A knob mounting seat is provided at the other end of the block gear, and a polygonal socket is provided at the end of the knob mounting seat. The knob is inserted and fixed in the polygonal socket;

[0017] Manually rotating the knob can drive the block gear to rotate. The rotation of the block gear can simultaneously drive the left push rod and the right push rod to move, and the moving directions of the left push rod and the right push rod are opposite.

[0018] As an improvement to the rear lock body of the rolling shutter door of the present utility model, a switch door button and a normally open button are also provided on the PCB board. Button holes are provided on both the front side and the rear side of the housing. The switch door button extends out from the button hole on the rear side of the housing, and the normally open button extends out from the button hole on the front side of the housing;

[0019] Pressing the switch door button can control the motor to start, and the motor can control the left push rod and the right push rod to extend out or retract into the housing;

[0020] Pressing the normally open button can disconnect the circuit of the PCB board, and the left push rod and the right push rod remain retracted into the housing.

[0021] As an improvement to the rear lock body of the rolling shutter door of the present utility model, a knob protruding hole is further provided on the rear side of the housing, the knob protrudes from the knob protruding hole, a lock core installation hole is provided on the front side of the housing, a lock core is provided in the lock core installation hole, and the lock core corresponds to the keyhole.

[0022] The beneficial effects of the present utility model are as follows: The present utility model can realize the functions of electric unlocking and manual unlocking. By using the clutch function of the clutch gear set in the housing, the clutch gear set can be meshed and driven with the third gear pair during electric unlocking, and the clutch gear set will not be meshed and driven with the third gear pair during manual unlocking. Moreover, the control module for controlling the motor is not installed on the rear lock body of the rolling shutter door of the present application, and the control module is arranged on the front lock body, which can reduce the thickness of the rear lock body and facilitate installation on the rolling shutter door. Description of the Drawings

[0023] Figure 1 is the front three-dimensional view of the present utility model;

[0024] Figure 2 is the rear three-dimensional view of the present utility model;

[0025] Figure 3 is the internal structure diagram of the present utility model after removing the housing;

[0026] Figure 4 is the front view of the present utility model after removing the housing;

[0027] Figure 5 is the rear view of the present utility model after removing the housing;

[0028] Figure 6 is the three-dimensional view of the dial block gear of the present utility model;

[0029] Figure 7 is the rear view of the dial block gear of the present utility model;

[0030] The reference numerals are: 1, housing; 2, shifting block gear; 3, left push rod; 4, right push rod; 5, rack; 6, motor; 7, first gear pair; 8, second gear pair; 9, clutch gear set; 10, third gear pair; 11, PCB board; 12, battery box; 13, knob; 14, worm; 15, Hall inductor; 16, magnet; 17, switch door button; 18, normally open button; 19, knob extension hole; 20, lock core mounting hole; 21, key hole; 22, knob mounting seat; 23, polygon jack; 201, lock core; 91, clutch drive gear; 92, gear shaft; 93, clutch bracket; 94, first clutch gear; 95, second clutch gear; 96, clutch driving gear; 71, first spur gear; 72, helical gear; 81, second spur gear; 82, third spur gear; 101, fourth spur gear; 102, fifth spur gear. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] As Figures 1-7As shown in the figure, a rear lock body of a rolling shutter door includes a housing 1. Inside the housing 1, there are a shifting block gear 2, a left push rod 3, and a right push rod 4. One end of the left push rod 3 and the right push rod 4 is provided with a rack 5 that meshes with the shifting block gear 2. The left push rod 3 is located above the shifting block gear 2, and the right push rod 4 is located below the shifting block gear 2. The other end of the left push rod 3 extends out from the left side of the housing 1, and the other end of the right push rod 4 extends out from the right side of the housing 1. Inside the housing 1, there are also a motor 6, a first gear pair 7, a second gear pair 8, a clutch gear set 9, and a third gear pair 10. The clutch gear set 9 is located between the second gear pair 8 and the third gear pair 10. The first gear pair 7 meshes and drives with the second gear pair 8, the second gear pair 8 meshes and drives with the clutch gear set 9, and the output shaft of the motor 6 drives the first gear pair 7 through a worm 14. The clutch gear set 9 can realize the switching between two unlocking methods: manual unlocking and electric unlocking. When manually unlocking and locking, the clutch gear set 9 is in a separated state from the third gear pair 10. When electrically unlocking and locking, the clutch gear set 9 is in a meshed state with the third gear pair 10.

[0035] Preferably, a PCB board 11 and a battery box 12 are also provided inside the housing 1. A battery is provided inside the battery box 12, and the PCB board 11 is electrically connected to the battery and the motor 6, and the battery provides power for the motor.

[0036] Preferably, when the motor 6 unlocks, the clutch gear set 9 can mesh and drive with the third gear pair 10;

[0037] When the shifting block gear 2 is rotated by a key or the shifting block gear 2 is rotated by a knob 13, the clutch gear set 9 does not mesh with the third gear pair 10.

[0038] Preferably, the clutch gear set 9 includes a clutch drive gear 91, a gear shaft 92, and a clutch bracket 93 that is movably sleeved on the gear shaft 93. The gear shaft 92 is fixedly connected to the clutch drive gear 91. The clutch bracket 93 is provided with a first clutch gear 94, a second clutch gear 95, and a clutch driving gear 96. The clutch driving gear 96 meshes and drives with the first clutch gear 94 and the second clutch gear 95 respectively, and the clutch driving gear 96 is connected to the gear shaft 92;

[0039] When locking by the motor 6, the first clutch gear 94 meshes and drives with the third gear pair 10. The motor 6 rotates forward and drives the first gear pair 7 through the worm 14. The first gear pair 7 drives the second gear pair 8. The second gear pair 8 drives the clutch drive gear 91. After the clutch drive gear 91 drives the clutch bracket 93 to rotate by a certain angle, the first clutch gear 94 meshes and drives with the third gear pair 10. The third gear pair 10 drives the shifting block gear 2 to rotate. The rotation of the shifting block gear 2 can drive the left push rod 3 and the right push rod 4 to extend out simultaneously for locking;

[0040] When unlocking with the motor 6, the second clutch gear 95 meshes with the third gear pair 10 for transmission. The motor 6 rotates reversely and drives the first gear pair 7 through the worm 14. The first gear pair 7 drives the second gear pair 8, the second gear pair 8 drives the clutch transmission gear 91, and after the clutch transmission gear 91 drives the clutch bracket 93 to rotate by a certain angle, the second clutch gear 95 meshes with the third gear pair 10 for transmission. The third gear pair 10 drives the block gear 2 to rotate, and the rotation of the block gear 2 can drive the left push rod 3 and the right push rod 4 to retract into the housing 1 to unlock the lock;

[0041] Preferably, the first gear pair 7 includes a first spur gear 71 and a helical gear 72 arranged coaxially, and the helical gear 72 meshes with the worm 14 for transmission;

[0042] The second gear pair 8 includes a second spur gear 81 and a third spur gear 82 arranged coaxially. The second spur gear 81 meshes with the first spur gear 71, and the third spur gear 82 meshes with the clutch transmission gear 91;

[0043] The third gear pair 10 includes a fourth spur gear 101 and a fifth spur gear 102 arranged coaxially, and the fifth spur gear 102 meshes with the block gear 2.

[0044] Preferably, a Hall sensor 15 is provided on the PCB board 11, and a magnet 16 that generates induction with the Hall sensor is provided on the left push rod 3 or the right push rod 4. When the magnet 16 generates induction with the Hall sensor 15, the motor 6 stops driving the block gear 2.

[0045] Preferably, a keyhole 21 is provided at one end of the block gear 2. The middle width of the keyhole 21 is larger than the widths at both ends. A knob mounting seat 22 is provided at the other end of the block gear 2, and a polygonal jack 23 is provided at the end of the knob mounting seat 22. The knob 13 is inserted and fixed in the polygonal jack 23;

[0046] Manually rotating the knob 13 can drive the block gear 2 to rotate. The rotation of the block gear 2 can drive the left push rod 3 and the right push rod 4 to move simultaneously, and the moving directions of the left push rod 3 and the right push rod 4 are opposite.

[0047] Preferably, a door opening / closing button 17 and a normally open button 18 are further provided on the PCB board 11. Button holes are provided on both the front side and the rear side of the housing 1. The door opening / closing button 17 extends out from the button hole on the rear side of the housing 1, and the normally open button 18 extends out from the button hole on the front side of the housing 1;

[0048] Pressing the door opening / closing button 17 can control the start of the motor 6, and the motor 6 can control the left push rod 3 and the right push rod 4 to extend or retract into the housing;

[0049] Pressing the normally open button 18 can disconnect the circuit of the PCB board 11, and the left push rod 3 and the right push rod 4 remain in the state of retracting into the housing 1.

[0050] Preferably, a knob protruding hole 19 is further provided on the rear side of the housing 1, the knob 13 protrudes from the knob protruding hole 19, a lock cylinder mounting hole 20 is provided on the front side of the housing 1, a lock cylinder 201 is provided in the lock cylinder mounting hole 20, and the lock cylinder 201 corresponds to the key hole 21.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and structures of the present invention, and the scope of the present invention is defined by the appended claims and their equivalent scope.

Claims

1. A rear lock body for a rolling shutter door, comprising a housing, wherein a block gear, a left push rod and a right push rod are arranged in the housing, racks meshing with the block gear are arranged at one ends of the left push rod and the right push rod, the left push rod is located above the block gear, the right push rod is located below the block gear, the other end of the left push rod extends out from the left side of the housing, and the other end of the right push rod extends out from the right side of the housing, characterized in that, The housing further is provided with a motor, a first gear pair, a second gear pair, a clutch gear set and a third gear pair. The clutch gear set is located between the second gear pair and the third gear pair. The first gear pair is in meshing transmission with the second gear pair. The second gear pair is in meshing transmission with the clutch gear set. The output shaft of the motor drives the first gear pair through a worm.

2. The rear lock body of the rolling gate according to claim 1, characterized in that, The housing further is provided with a PCB board and a battery box. A battery is provided in the battery box. The PCB board is electrically connected to the battery and the motor. The battery supplies power to the motor.

3. The rear lock body of the rolling shutter door according to claim 1, characterized in that, When the motor unlocks, the clutch gear set can be in meshing transmission with the third gear pair; When the shift gear is rotated by a key or by a knob, the clutch gear set is not in meshing with the third gear pair.

4. The rear lock body of the rolling shutter door according to claim 3, characterized in that, The clutch gear set includes a clutch drive gear, a gear shaft, and a clutch bracket movably sleeved on the gear shaft. The gear shaft is fixedly connected to the clutch drive gear. The clutch bracket is provided with a first clutch gear, a second clutch gear and a clutch driving gear. The clutch driving gear is in meshing transmission with the first clutch gear and the second clutch gear respectively. The clutch driving gear is connected to the gear shaft; When the motor locks, the first clutch gear is in meshing transmission with the third gear pair, When the motor unlocks, the second clutch gear is in meshing transmission with the third gear pair.

5. The rear lock body of the rolling shutter door according to claim 4, characterized in that The first gear pair includes a first spur gear and a helical gear arranged coaxially. The helical gear is in meshing transmission with the worm; The second gear pair includes a second spur gear and a third spur gear arranged coaxially. The second spur gear is in meshing with the first spur gear. The third spur gear is in meshing with the clutch drive gear; The third gear pair includes a fourth spur gear and a fifth spur gear arranged coaxially. The fifth spur gear is in meshing with the shift gear.

6. The rear lock body of the rolling shutter door according to claim 2, characterized in that, The PCB board is provided with a Hall sensor. A magnet for generating induction with the Hall sensor is provided on the left push rod or the right push rod. When the magnet generates induction with the Hall sensor, the motor stops driving the shift gear.

7. The rear lock body of the rolling shutter door according to claim 2, characterized in that, One end of the shift gear is provided with a keyhole. The middle width of the keyhole is larger than the widths at both ends. The other end of the shift gear is provided with a knob mounting seat. The end of the knob mounting seat is provided with a polygonal socket. The knob is inserted and fixed in the polygonal socket; Manually rotating the knob can drive the shift gear to rotate. The rotation of the shift gear can drive the left push rod and the right push rod to move simultaneously. The moving directions of the left push rod and the right push rod are opposite.

8. The rear lock body of the rolling shutter door according to claim 2, characterized in that, The PCB board is further provided with a door opening / closing button and a normally open button. Button holes are provided on both the front side and the rear side of the housing. The door opening / closing button extends out from the button hole on the rear side of the housing. The normally open button extends out from the button hole on the front side of the housing; Pressing the door opening / closing button can control the motor to start. The motor can control the left push rod and the right push rod to extend out of or retract into the housing; Pressing the normally open button can disconnect the circuit of the PCB board, and the left push rod and the right push rod remain retracted into the housing.

9. The rear lock body of the rolling shutter door according to claim 7, characterized in that, A knob protruding hole is further provided on the rear side of the housing, the knob protrudes from the knob protruding hole, a lock core mounting hole is provided on the front side of the housing, a lock core is provided in the lock core mounting hole, and the lock core corresponds to the keyhole.

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