CN216110133U - Rack and pinion formula pickproof lock - Google Patents
Rack and pinion formula pickproof lock Download PDFInfo
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- CN216110133U CN216110133U CN202120313048.3U CN202120313048U CN216110133U CN 216110133 U CN216110133 U CN 216110133U CN 202120313048 U CN202120313048 U CN 202120313048U CN 216110133 U CN216110133 U CN 216110133U
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Abstract
The utility model discloses a rack and pinion type anti-theft lock, and belongs to the technical field of anti-theft locks. The existing anti-theft lock is labor-consuming or power-consuming when locking or opening the door, and the lock body is easy to generate larger sound. According to the utility model, the handle rotates to drive the large dial head shaft or the motor or the key to start the gear rack structure of the lock body, so that the lock bolt and the oblique bolt can stably extend and retract back and forth and up and down the top and bottom pull rod. The electric quantity of the battery is saved, and the lock body has no sound.
Description
Technical Field
The utility model relates to a rack and pinion type anti-theft lock, and belongs to the technical field of anti-theft locks.
Background
The double-fast anti-theft lock sold in the market has the technical problems that: when the anti-theft door is locked by lifting the handle or the door is opened by pressing the handle downwards, the anti-theft door can be locked by a large force, and the lock body can make a loud sound; for example, in an electronic lock, the motor drives and consumes more battery power.
The general anti-theft lock for electronic control sold in the market has the technical problems that: the spring is arranged on the sliding block, and when the motor is driven, the spring is overcome to push the sliding block to move up and down, so that the power consumption is high, the sound is loud, and the battery is frequently replaced or charged, which brings inconvenience to the use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems of large force, large power consumption and loud sound when unlocking and locking an anti-theft lock, and provides a gear and rack type anti-theft lock which can be easily opened and closed, has low power consumption and is silent.
In order to achieve the above object, the present invention provides a rack and pinion type anti-theft lock, including: the main lock bolt plate is matched with the main gear through a transmission shaft;
a bidirectional rack is slidably arranged below the main lock bolt plate through a connecting column, and when the lock is unlocked or locked, the bidirectional rack and the main lock bolt plate slide in the same direction and synchronously back and forth;
the main gear is meshed with a speed change gearwheel, the speed change gearwheel is meshed with upper teeth of a bidirectional rack through a speed change pinion fixed together with the speed change gearwheel, and lower teeth of the bidirectional rack are matched with the lock cylinder shifting head for use;
the large poking head shaft is sleeved with a gear piece and a latch poking piece;
the large shifting head shaft is fixedly provided with a one-way shifting piece;
the master gear is meshed with the slave lower gear, the slave upper gear is fixedly arranged on the slave lower gear, and the slave upper gear is meshed with a gear piece sleeved on the big shifting block shaft for use;
a riveting transmission column is fixed on the gear plate and is matched with the one-way shifting plate for use;
the root of the oblique tongue is provided with an oblique tongue pull rod, and an oblique tongue support, an oblique tongue spring, an oblique tongue reversing pressure spring and a clamping piece are sleeved on the oblique tongue pull rod;
the latch bolt shifting piece is in contact fit with the latch bolt bracket and can shift the latch bolt bracket to move backwards;
the side edge of the world pull rod is provided with a rack which is meshed with a pinion, the pinion is fixedly arranged on a big gear, and the big gear is meshed with a rack of a secondary lock bolt plate on the secondary lock bolt plate;
the top and bottom pull rod is provided with a guide strip which is inserted into a guide gap bridge arranged on the lock box;
the auxiliary lock bolt is fixed on the auxiliary lock bolt plate, the auxiliary lock bolt plate is provided with an auxiliary lock bolt plate rack, and the auxiliary lock bolt plate rack is meshed with the large gear for use;
the lower end part of the swing push rod is contacted and matched with the lock cylinder shifting head for use;
a positioning roller is arranged at the edge of the lower gear, the positioning roller is hinged and fixed at the end part of a positioning arm, and a torsion spring is arranged at the root part of the positioning arm;
the main gear rotating shaft is arranged in a shaft hole at the front end of the compression-resistant fixed plate, a plurality of connecting fixed columns are arranged between the compression-resistant fixed plate and the lock box, and the upper gear, the lower gear and the positioning arm are hinged and fixed on a bottom plate of the lock box respectively.
The latch bolt support is internally provided with a latch bolt reversing pressure spring, the front end of the latch bolt reversing pressure spring is propped against the inner side surface of the latch bolt support, and the rear end of the latch bolt reversing pressure spring is propped against the clamping sheet.
The gear piece is provided with a quincunx abdicating hole at the position of the rotating shaft, and the large shifting head shaft is in contact fit with the edge of the hole.
The one-way shifting piece is fixed on the large shifting head shaft and is in contact fit with the riveting transmission column.
Three positioning notches are arranged at the edge of the lower gear and are matched with the positioning rollers for use.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the rack and pinion type anti-theft lock, the handle starts the rack and pinion structure through the rotation of the large dial head shaft or the starting of the motor or the key, so that the lock bolt and the oblique bolt can stretch back and forth and the world pull rod can move up and down stably. The electric quantity of the battery is saved, and the lock body has no sound.
When the door is locked (or locked), the inner handle is rotated downwards, the big shifting block shaft is started to rotate, the gear piece arranged on the big shifting block shaft rotates, the gear piece drives the slave upper gear and the slave lower gear, the slave lower gear drives the master gear, a transmission shaft on the master gear drives the rack of the master lock bolt plate, and the master lock bolt plate moves backwards to pull the master lock bolt back into the lock box; meanwhile, the world pull rod connected with the main lock bolt plate also retracts towards the inside of the lock box, a rack on the side edge of the world pull rod drives a pinion and a gearwheel to rotate together, a rack of a secondary lock bolt plate on the secondary lock bolt plate meshed with the gearwheel drives a secondary lock bolt plate, and a secondary lock bolt is pulled back into the lock box; meanwhile, the inclined tongue shifting piece arranged on the large shifting block shaft rotates, the inclined tongue shifting piece shifts the inclined tongue support to drive the inclined tongue pull rod and the inclined tongue, the inclined tongue spring is compressed to move backwards, and the inclined tongue is separated from the door frame to open the door (or unlock the door).
When a key or an electronic control is used for unlocking (or opening a door), the lock cylinder shifting head rotates, the lock cylinder shifting head shifts a lower rack of the bidirectional rack, the bidirectional rack moves backwards, an upper rack on the bidirectional rack drives the speed change pinion and the speed change gearwheel to rotate, the speed change gearwheel drives the main gear, a transmission shaft on the main gear drives a main lock bolt plate rack, and the main lock bolt plate moves backwards to pull the main lock bolt back into the lock box; meanwhile, the world pull rod also retracts towards the inside of the lock box to drive the pinion and the gearwheel to rotate together, and the gearwheel drives the auxiliary lock bolt plate to pull the auxiliary lock bolt back into the lock box; when the lock core shifting block rotates again, the shifting block pushes the swing push rod upwards, the latch bolt shifting piece connected with the swing push rod rotates to shift the latch bolt support, the latch bolt pull rod and the latch bolt to move backwards, and the latch bolt is separated from the door frame to open the door (or unlock the door).
When the door is closed, the latch bolt touches the door frame and moves backwards, when the latch bolt crosses the edge of the door frame, the latch bolt extends forwards from the lock box again under the action of the spring force of the latch bolt and is inserted into the hole of the door frame, and the anti-theft door is in a semi-locking state at the moment.
When the lock is in a half-locking state, the indoor handle is rotated upwards, the large shifting head shaft rotates to drive the gear piece sleeved on the large shifting head shaft to rotate in the direction opposite to the unlocking direction, the gear piece drives the auxiliary upper gear and the auxiliary lower gear, the auxiliary lower gear drives the main gear, a transmission shaft on the main gear drives the main lock bolt plate to move forwards, and the main lock bolt is pushed out of the lock box; meanwhile, the top and bottom pull rod also extends out of the lock box, the pinion and the bull gear rotate together to drive the auxiliary lock bolt plate to move forwards, and the auxiliary lock bolt is pushed out of the lock box, namely the door is locked (or locked).
When the door is in a half-locking state, the outdoor handle is rotated upwards, the large shifting block shaft is rotated, the one-way shifting piece fixed on the large shifting block shaft drives the gear piece to rotate in the direction opposite to the unlocking direction through the riveting transmission column fixed on the gear piece, and the door is locked (or locked) by moving the following mechanism.
The positioning function is that when the lock body is in a locking state, the main lock bolt and the auxiliary lock bolt need to be in a complete extension state and a half extension state. When the lock body is in an opening state, the main lock bolt and the auxiliary lock bolt are kept in a fully retracted state. Therefore, three positioning notches are arranged on the edge of the slave lower gear, and correspond to three states of full extension, half extension and full retraction of the main lock bolt and the auxiliary lock bolt. The gap is provided with a positioning roller which is matched with the gap for use. The positioning roller is arranged on the positioning arm. The root of the positioning arm is provided with a torsion spring, one end of the torsion spring is propped against the positioning arm, the other end of the torsion spring is propped against the rear side surface of the lock box, and the positioning roller is always kept in elastic rolling contact with the edge of the lower gear.
The oblique tongue reversing function is realized by using a special tool to push the pull rod of the oblique tongue forward, the pull rod of the oblique tongue compresses the oblique tongue reversing pressure spring through a clamping piece arranged on the pull rod of the oblique tongue, the root part of the oblique tongue is separated from the contact with the guide plate, and the oblique tongue is rotated (180 degrees in the prior art). Then, the forward thrust is released, and the root of the oblique tongue retracts into the guide plate under the action of the elastic force of the compression oblique tongue reversing pressure spring, so that the oblique tongue reversing is completed.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.
Fig. 1 is a locking state schematic diagram of a lock body structure of a rack and pinion type anti-theft lock of the utility model.
FIG. 2 is a schematic view of a combination of a rack and pinion type anti-theft lock bolt, a bolt plate, a pinion and a bull gear.
FIG. 3 is a schematic view of a combination of a top and bottom pull rod, a pinion, a bull gear and a guide gap bridge of the gear-rack type anti-theft lock.
FIG. 4 is a schematic diagram of a combination of a latch bolt, a latch bolt pull rod, a latch bolt bracket, a clamping piece and a reversing pressure spring of the gear-rack type anti-theft lock.
Fig. 5 is a schematic view of a combination of a main lock bolt, a main lock bolt plate and a bidirectional rack of the gear-rack type anti-theft lock.
Fig. 6 is a schematic view of a bidirectional rack of a rack and pinion type anti-theft lock according to the utility model.
Fig. 7 is a schematic view of a driven lower gear of the rack and pinion type anti-theft lock of the utility model.
Fig. 8 is a schematic view of a rack and pinion type anti-theft lock compression-resistant fixing plate according to the utility model.
FIG. 9 is a schematic view of an assembly fixing position of a gear plate and a riveting transmission column of the rack-and-pinion type anti-theft lock.
The reference numbers in the figures denote: 1-locking the box; 2. 22-pinion gear; 3. 21-gearwheel; 4. 20-pair of bolt plates; 4-1-auxiliary bolt plate rack; 5-oblique tongue reversing pressure spring; 6-oblique tongue support; 7-oblique tongue pull rod; 8-card; 9-riveting a transmission column; 10-gear piece; 10-1-quincunx abdicating holes; 11-a torsion spring; 12-a positioning arm; 13-driven lower gear; 13-1-locating the notch; 14. 33-a drive shaft; 15-main gear; 16-positioning rollers; 17-from the upper gear; 18-a bidirectional rack; 18-1-upper teeth; 18-2-lower teeth; 19. 28-connecting column; 23. 42-a top and bottom tie rod; 24. 41-pair of bolts; 25-a guide plate; 26-a lock cylinder shifting block; 27-a swing push rod; 29-a main bolt; 30-a change gear pinion; 31-a variable speed gearwheel; 32-a guide bridge; 34-a primary keeper plate; 34-1-primary keeper plate rack; 35-compression-resistant fixing plate; 35-1-shaft hole; 35-2-connecting and fixing column; 36-large dial axis; 37-oblique tongue; 38-latch spring; 39-one-way shifting piece; 40-oblique tongue plectrum; 42-1-rack.
Detailed Description
The rack and pinion type anti-theft lock of the present invention will be described in detail with reference to the accompanying drawings.
Referring to the attached drawings, the rack and pinion type anti-theft lock of the embodiment comprises: the main latch 29 is fixed at the front end of a main latch plate 34, and the main latch plate 34 is matched with the main gear 15 through transmission shafts 14 and 33;
a bidirectional rack 18 is slidably arranged below the main bolt plate 34 through connecting columns 19 and 28, and when the lock is unlocked or locked, the bidirectional rack 18 and the main bolt plate 34 slide forwards and backwards in the same direction and out of synchronization;
the main gear 15 is meshed with a gear change gearwheel 31, the gear change gearwheel 31 is meshed with upper teeth 18-1 of a bidirectional rack 18 through a gear change pinion 30 fixed with the gear change gearwheel 31, and lower teeth 18-2 of the bidirectional rack are matched with a lock cylinder shifting head 26 for use;
the large dial head shaft 36 is sleeved with a gear piece 10 and a latch dial piece 40;
a one-way shifting piece 39 is fixedly arranged on the large shifting head shaft 36;
the main gear 15 is meshed with the slave lower gear 13, the slave upper gear 17 is fixedly arranged on the slave lower gear 13, and the slave upper gear 17 is meshed with the gear piece 10 sleeved on the large shifting head shaft 36 for use;
a riveting transmission column 9 is fixed on the gear piece 10, and the riveting transmission column 9 is matched with the one-way shifting piece 39 for use;
the root of the oblique tongue 37 is provided with an oblique tongue pull rod 7, and the oblique tongue pull rod 7 is sleeved with an oblique tongue support 6, an oblique tongue spring 38, an oblique tongue reversing pressure spring 5 and a clamping piece 8;
the latch bolt shifting piece 40 is in contact fit with the latch bolt bracket 6, and the latch bolt shifting piece 40 can shift the latch bolt bracket 6 to move backwards;
racks 42-1 are arranged on the side edges of the top and bottom pull rods 23 and 42, the racks 42-1 are meshed with the pinions 2 and 22, the pinions 2 and 22 are fixedly arranged on the large gears 3 and 21, and the large gears 3 and 21 are meshed with the racks 4-1 of the auxiliary lock bolt plates 4 and 20 for use;
the top and bottom pull rods 23 and 42 are provided with guide strips 42-2, and the guide strips 42-2 are inserted into the guide gap bridges 32 arranged on the lock box 1;
the auxiliary lock bolts 24 and 41 are fixed on the auxiliary lock bolt plates 20 and 4, the auxiliary lock bolt plates 20 and 4 are provided with auxiliary lock bolt plate racks 4-1, and the auxiliary lock bolt plate racks 4-1 are meshed with the large gear 3 for use;
the latch bolt plectrum 40 is provided with a swing push rod 27, and the lower end part of the swing push rod 27 is contacted and matched with the lock cylinder plectrum 26 for use;
a positioning roller 16 is arranged at the edge of the lower gear 13, the positioning roller 16 is hinged and fixed at the end part of a positioning arm 12, and a torsion spring 11 is arranged at the root part of the positioning arm 12;
the compression-resistant fixing plate 35, the main gear 15 rotating shaft is arranged in the shaft hole 35-1 at the front end of the compression-resistant fixing plate 35, a plurality of connecting fixing columns 35-2 are arranged between the compression-resistant fixing plate 35 and the lock box 1, and the upper gear 17, the lower gear 13 and the positioning arm 12 are respectively fixed on the bottom plate of the lock box 1 in an articulated manner.
The latch bolt support 6 is internally provided with a latch bolt reversing pressure spring 5, the front end of the latch bolt reversing pressure spring 5 is propped against the inner side surface of the latch bolt support 6, and the rear end of the latch bolt reversing pressure spring is propped against the clamping piece 8.
The gear piece 10 is provided with a quincunx abdicating hole 10-1 at the position of the rotating shaft, and a large poking head shaft 36 is in contact fit with the edge of the hole for use.
The one-way shifting piece 39 is fixed on the large shifting block shaft 36 and is in contact fit with the riveting transmission column 9.
The edge of the slave lower gear 13 is provided with three positioning notches 13-1 which are matched with the positioning roller 16 for use.
When the door is locked (or locked), the inner handle is rotated downwards, the large shifting head shaft 36 is started to rotate, the gear piece 10 arranged on the large shifting head shaft 36 rotates, the gear piece 10 drives the auxiliary upper gear 17 and the auxiliary lower gear 13, the auxiliary lower gear 13 drives the main gear 15, the transmission shafts 14 and 33 on the main gear 15 drive the main lock bolt plate rack 34-1, and the main lock bolt plate 34 moves backwards to pull the main lock bolt 29 back into the lock box 1; meanwhile, the world pull rods 23 and 42 connected with the main lock bolt plate 29 also retract into the lock box 1, the racks 42-1 on the side edges of the world pull rods 23 and 42 drive the pinions 2 and 22 and the large gears 3 and 21 to rotate together, the auxiliary lock bolt plate racks 4-1 on the auxiliary lock bolt plates 4 and 20 meshed with the large gears 3 and 21 drive the auxiliary lock bolt plates 4 and 20, and the auxiliary lock bolts 24 and 41 are pulled back into the lock box 1; meanwhile, the latch bolt shifting sheet 40 arranged on the large shifting head shaft 36 rotates, the latch bolt shifting sheet 40 shifts the latch bolt bracket 6 to drive the latch bolt pull rod 7 and the latch bolt 37, the latch bolt spring 38 is compressed to move backwards, and the latch bolt 37 is separated from the door frame, namely, the door is opened (or unlocked).
When a key or an electronic control is used for unlocking (or opening a door), the lock cylinder shifting head 26 rotates, the lock cylinder shifting head 26 shifts the lower teeth 18-2 of the bidirectional rack 18, the bidirectional rack 18 moves backwards, the upper teeth 18-1 on the bidirectional rack 18 drive the speed change pinion 30 and the speed change gearwheel 31 to rotate, the speed change gearwheel 31 drives the main gear 15, the transmission shafts 14 and 33 on the main gear 15 drive the main lock bolt plate rack 34-1, and the main lock bolt plate 34 moves backwards to pull the main lock bolt 29 back into the lock box 1; meanwhile, the world pull rods 23 and 42 also retract into the lock box 1 to drive the pinions 2 and 22 and the large gears 3 and 21 to rotate together, and the large gears 3 and 21 drive the auxiliary lock bolt plates 4 and 20 to pull the auxiliary lock bolts 24 and 41 back into the lock box 1; when the lock cylinder shifting block 26 rotates again, the shifting block pushes the swing push rod 27 upwards, the latch bolt shifting piece 40 connected with the swing push rod 27 rotates, the latch bolt support 6, the latch bolt pull rod 7 and the latch bolt 37 are shifted to move backwards, and the latch bolt 37 is separated from contact with the door frame, namely, the door is opened (or unlocked).
When the door is closed, the latch 37 touches the door frame and moves backwards, and after the latch 37 passes the edge of the door frame, the latch is extended forwards from the lock box 1 again under the action of the elastic force of the latch spring 38 and is inserted into the hole of the door frame, and the anti-theft door is in a semi-locking state.
When the lock is in a half-locking state, the indoor handle is rotated upwards, the large shifting block shaft 36 rotates to drive the gear piece 10 sleeved on the large shifting block shaft 36 to rotate in the direction opposite to the unlocking direction, the gear piece 10 drives the driven upper gear 17 and the driven lower gear 13, the driven lower gear 13 drives the main gear 15, the transmission shafts 14 and 33 on the main gear 15 drive the main lock bolt plate 34 to move forwards, and the main lock bolt 29 is pushed out of the lock box 1; meanwhile, the top and bottom pull rods 23 and 42 also extend out of the lock box 1, the pinions 2 and 22 and the gearwheels 3 and 21 rotate together to drive the auxiliary lock bolt plates 4 and 20 to move forwards, and the auxiliary lock bolts 24 and 41 are pushed out of the lock box 1, namely, the door is locked (or locked).
When the door is in a half-locking state, the outdoor handle is rotated upwards, the large dial shaft 36 is rotated, the one-way dial piece 39 fixed on the large dial shaft 36 drives the gear piece 10 to rotate in the direction opposite to the unlocking direction through the riveting transmission column 9 fixed on the gear piece 10, and the door is locked (or locked) through the following mechanism movement.
The positioning function is that when the lock body is in a locking state, the main and auxiliary lock bolts 29, 24 and 41 need to be in a fully extended state and a semi-extended state. When the lock body is in the unlocked state, the primary and secondary bolts 29, 24, 41 are maintained in the fully retracted state. Therefore, three positioning notches 13-1 are provided on the edge of the sub-lower gear 13 corresponding to the three states of the main and sub-latches 29, 24, 41, fully extended, half extended and fully retracted. The gap is provided with a positioning roller 16, and the positioning roller 16 is matched with the gap for use. The positioning roller 16 is mounted on the positioning arm 12. The root of the positioning arm 12 is provided with a torsion spring 11, one end of the torsion spring 11 is propped against the positioning arm 12, the other end is propped against the rear side surface of the lock box 1, and the positioning roller 16 is always kept in elastic rolling contact with the edge of the driven gear 13.
The oblique tongue 37 has a reversing function, a special tool is used for pushing the oblique tongue pull rod 7 forwards, the oblique tongue pull rod 7 compresses the oblique tongue reversing pressure spring 5 through the clamping piece 8 arranged on the oblique tongue pull rod, the root part of the oblique tongue 37 is separated from the contact with the guide plate 25, and the oblique tongue 37 is rotated (180 degrees in the prior art). Then, the forward thrust is released, and the root of the latch tongue 37 retracts into the guide plate 25 under the elastic force of the compressed latch tongue reversing pressure spring 5, thereby completing the reversing of the latch tongue 37.
Claims (5)
1. A rack and pinion type anti-theft lock is characterized by comprising:
the main lock bolt (29) is fixed at the front end of a main lock bolt plate (34), and the main lock bolt plate (34) is matched with the main gear (15) through transmission shafts (14) and (33);
a bidirectional rack (18) is slidably arranged below the main lock bolt plate (34) through connecting columns (19) and (28), and when the lock is unlocked or locked, the bidirectional rack (18) and the main lock bolt plate (34) slide forwards and backwards in the same direction and out of synchronization;
the main gear (15) is meshed with a gear change gear (31), the gear change gear (31) is meshed with upper teeth (18-1) of a bidirectional rack (18) through a gear change pinion (30) fixed with the gear change gear, and lower teeth (18-2) of the bidirectional rack are matched with a lock cylinder shifting head (26) for use;
the large dial head shaft (36) is sleeved with a gear piece (10) and a latch dial piece (40);
a one-way shifting piece (39) is fixedly arranged on the large shifting head shaft (36);
the main gear (15) is meshed with the slave lower gear (13), the slave upper gear (17) is fixedly arranged on the slave lower gear (13), and the slave upper gear (17) is meshed with a gear piece (10) sleeved on a big shifting head shaft (36) for use;
a riveting transmission column (9) is fixed on the gear piece (10), and the riveting transmission column (9) is matched with the unidirectional shifting piece (39) for use;
the root of the oblique tongue (37) is provided with an oblique tongue pull rod (7), and the oblique tongue pull rod (7) is sleeved with an oblique tongue support (6), an oblique tongue spring (38), an oblique tongue reversing pressure spring (5) and a clamping piece (8);
the latch bolt shifting piece (40) is in contact fit with the latch bolt bracket (6), and the latch bolt shifting piece (40) can shift the latch bolt bracket (6) to move backwards;
racks (42-1) are arranged on the side edges of the top and bottom pull rods (23) and (42), the racks (42-1) are meshed with the pinions (2) and (22), the pinions (2) and (22) are fixedly arranged on the large gears (3) and (21), and the large gears (3) and (21) are meshed with the racks (4-1) of the auxiliary lock bolt plates on the auxiliary lock bolt plates (4) and (20) for use;
the top and bottom pull rods (23) and (42) are provided with guide strips (42-2), and the guide strips (42-2) are inserted into guide gap bridges (32) arranged on the lock box (1);
the auxiliary lock bolts (24) and (41) are fixed on the auxiliary lock bolt plates (20) and (4), the auxiliary lock bolt plates (20) and (4) are provided with auxiliary lock bolt plate racks (4-1), and the auxiliary lock bolt plate racks (4-1) are meshed with the large gear (3) for use;
the latch bolt shifting piece (40) is provided with a swing push rod (27), and the lower end part of the swing push rod (27) is in contact fit with the lock cylinder shifting head (26);
a positioning roller (16) is arranged at the edge of the lower gear (13), the positioning roller (16) is hinged and fixed at the end part of the positioning arm (12), and the root part of the positioning arm (12) is provided with a torsion spring (11);
the anti-compression fixing plate (35), the rotating shaft of the main gear (15) is arranged in a shaft hole (35-1) at the front end of the anti-compression fixing plate (35), a plurality of connecting and fixing columns (35-2) are arranged between the anti-compression fixing plate (35) and the lock box (1), and the upper gear (17), the lower gear (13) and the positioning arm (12) are hinged and fixed on a bottom plate of the lock box (1) respectively.
2. The rack and pinion type anti-theft lock according to claim 1, characterized in that the latch bolt reversing pressure spring (5) is installed in the latch bolt support (6), the front end of the latch bolt reversing pressure spring (5) is supported on the inner side surface of the latch bolt support (6), and the rear end is supported on the clamping piece (8).
3. A rack and pinion type theft-proof lock according to claim 1, characterized in that the gear piece (10) is provided with a quincunx abdicating hole (10-1) at the position of the rotary shaft, and the large dial shaft (36) is used in contact with the edge of the hole.
4. A rack and pinion anti-theft lock according to claim 1, characterized in that the one-way finger (39) is fixed on the large dial shaft (36) and is used in contact with the riveting driving column (9).
5. A rack and pinion type anti-theft lock according to claim 1, characterized in that the slave lower gear (13) is provided with three positioning notches (13-1) along its edge, which notches cooperate with the positioning rollers (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313048.3U CN216110133U (en) | 2021-01-27 | 2021-01-27 | Rack and pinion formula pickproof lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313048.3U CN216110133U (en) | 2021-01-27 | 2021-01-27 | Rack and pinion formula pickproof lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110133U true CN216110133U (en) | 2022-03-22 |
Family
ID=80686413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120313048.3U Active CN216110133U (en) | 2021-01-27 | 2021-01-27 | Rack and pinion formula pickproof lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216110133U (en) |
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2021
- 2021-01-27 CN CN202120313048.3U patent/CN216110133U/en active Active
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