CN115467588A - Small-resistance anti-reverse-pushing anti-theft lock - Google Patents
Small-resistance anti-reverse-pushing anti-theft lock Download PDFInfo
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- CN115467588A CN115467588A CN202211217363.1A CN202211217363A CN115467588A CN 115467588 A CN115467588 A CN 115467588A CN 202211217363 A CN202211217363 A CN 202211217363A CN 115467588 A CN115467588 A CN 115467588A
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- 238000003780 insertion Methods 0.000 claims description 15
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 210000003813 thumb Anatomy 0.000 abstract description 5
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
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Abstract
The invention provides a small-resistance anti-reverse-pushing anti-theft lock, and belongs to the technical field of locks. The problem that an existing lockset is large in unlocking friction resistance, unreliable in locking and the like is solved. The lock comprises a lock body, a lock bolt, an inclined bolt and a thumb wheel, wherein the lock bolt, the inclined bolt and the thumb wheel are arranged on the lock body, the thumb wheel drives the lock bolt to move through a first linkage structure, the first linkage structure comprises a first gear and a first tooth sheet, the first gear is externally meshed with the first tooth sheet, a first transmission pin is arranged on the first tooth sheet, a first linkage groove is arranged on the lock bolt plate and comprises a longitudinal area and a transverse area, and two first locking positions are arranged on the inner periphery of the longitudinal area. The invention has the advantages of gear transmission, small transmission resistance, reliable locking of the position of the lock tongue and anti-theft effect.
Description
Technical Field
The invention belongs to the technical field of locks, and particularly relates to a small-resistance anti-reverse-pushing anti-theft lock.
Background
The key and the handle of the existing anti-theft lock rotate to unlock or lock, and generally drive the bolt to move through a rotating assembly, for example, a one-step lock body structure of a cam opening and closing bolt provided by application number 201920633089.3, the cam on the lock core drives the main bolt part to move through a cam driving lever and a bolt driving lever, the bolt driving lever drives the pin to match with the first guide slot to drive the main bolt part to move in the rotating process through the bolt, the whole transmission process is mainly realized by the pin and the guide slot, and the guide slot is in a long slot shape in a single direction, in order to adapt to the telescopic stroke of the bolt, the lengths of the guide slot are relatively longer, the guide slot and the pin are in friction transmission in the matching process, and the friction process is continuous in the whole moving process of the pin, so the friction resistance in the transmission process of the pin and the guide slot is large, and after the bolt moves in place, no reliable locking structure can prevent the bolt from being pushed back, and the anti-theft performance is poor.
Disclosure of Invention
The invention aims to overcome the defects of the existing anti-theft lock, and provides the anti-theft lock which has small gear transmission and transmission resistance, can reliably lock the position of a lock tongue and has a good anti-theft effect.
The purpose of the invention can be realized by the following technical scheme:
a small-resistance anti-reverse-pushing anti-theft lock comprises a lock body, a lock tongue and an oblique tongue, wherein the lock body is provided with a lock core for inserting a key, the lock core is provided with a shifting wheel, the lock body is also provided with a shifting shaft for mounting square steel, the shifting shaft is provided with a shifting sheet for driving the oblique tongue to move, the shifting wheel can drive the lock tongue to move through a first linkage structure in the rotating process, the first linkage structure comprises a first gear and a first tooth sheet, the first gear can rotate around the rotating center of the shifting wheel relative to the lock body under the driving of the shifting wheel, the first tooth sheet is rotatably arranged on the lock body, the first gear is externally meshed with the first tooth sheet, the first tooth sheet is further provided with a first transmission pin, the lock tongue is arranged on the lock tongue plate, the first transmission pin is positioned in the first linkage groove, the first linkage groove comprises a longitudinal area and a transverse area, and the longitudinal area extends along the moving direction of the lock tongue, the extension direction of the transverse area is vertical to that of the longitudinal area, two ends of the extension direction of the longitudinal area are divided into a front end and a rear end, when the first transmission pin is positioned at the front end of the longitudinal area, the spring bolt extends out of the lock body, when the first transmission pin is positioned at the rear end of the longitudinal area, the spring bolt is positioned in the lock body, the transverse area is butted at one side of the longitudinal area and is communicated with the longitudinal area, the first transmission pin can move from one end of the longitudinal area to the other end of the longitudinal area through the transverse area along with the movement of the first tooth piece, two first locking positions are arranged on the inner circumference of the longitudinal area, the two first locking positions are respectively corresponding to the front end and the rear end of the longitudinal area, when the first transmission pin is positioned at the front end or the rear end, the first transmission pin can abut against the first locking position corresponding to the front end or the rear end to limit the movement of the spring bolt under the action of external force to enable the spring bolt to move actively relative to the first transmission pin, when the first transmission pin is driven by the first tooth piece to move actively relative to the tongue locking plate, the first transmission pin can move from the longitudinal area to the transverse area.
In the above-mentioned anti-reverse-pushing anti-theft lock with small resistance, the first locking position is a part of the inner circumference of the longitudinal section, and the first locking position is a straight edge.
In the anti-reverse-pushing anti-theft lock with small resistance, the inner periphery of the longitudinal area is formed by combining two first locking positions, two arc edges and a longitudinal edge, the longitudinal edge extends along the extension direction of the longitudinal area, the two first locking positions correspond to the two arc edges one to one, the arc edges are arc-shaped, the openings of the two arc edges are arranged oppositely, the extension direction of a connecting line of arc centers of the two arc edges is consistent with the movement direction of a lock tongue, the two arc edges are respectively arranged at two ends of the longitudinal edge, one end of each arc edge is connected with the longitudinal edge, the other end of each arc edge is connected with one end of the corresponding first locking position, the inner periphery of the transverse area is formed by combining two parallel transverse edges, the two transverse edges correspond to the two first locking positions one to one, two ends of each first locking position are respectively connected with the corresponding transverse edge and the arc edge, and the arc angle at the joint of the first locking positions and the transverse edges is in transition.
In the small-resistance anti-reverse-pushing anti-theft lock, the linear distance between the arc centers of the two arc edges is smaller than the linear distance between the two transverse edges.
In the anti-reverse-pushing anti-theft lock with small resistance, the lock body is further provided with a first power-assisted spring, and two ends of the first power-assisted spring respectively act on the lock body and the first tooth piece.
In the above-mentioned anti-reverse-pushing anti-theft lock with small resistance, one end of the transverse area is connected with the longitudinal area, and the other end penetrates through the edge of the lock tongue plate.
In foretell small resistance prevents backstepping pickproof lock, still be equipped with two days ground poles on the lock body, two days ground pole links to each other with the transmission of above-mentioned first tooth piece through a second linkage, the motion direction of ground pole and the motion direction of spring bolt perpendicular of ground pole and the motion direction of ground pole can move under the drive of first tooth piece, second linkage is including setting up the second driving pin on first tooth piece and seting up the second linkage groove on one of them day ground pole, the second linkage groove is including the cross slot and the vertical slot that communicate each other, the cross slot extends along the ground pole motion direction and offers, the vertical slot extends along the spring bolt motion direction and offers, the vertical slot butt joint is in one side of cross slot.
In the small-resistance anti-reverse-pushing anti-theft lock, the two top and bottom rods are respectively provided with a rack, the racks extend along the motion direction of the top and bottom rods, the lock body is further rotatably provided with a second gear, the second gear is positioned between the two racks, and the second gear is meshed with the two racks.
In the small-resistance anti-reverse-pushing anti-theft lock, a third linkage structure is further arranged between the first gear and the shifting piece, the third linkage structure comprises a transmission piece arranged on the first gear and a linkage piece movably arranged on the lock body, the transmission piece can move synchronously with the first gear, the transmission piece can also rotate around the rotation center of the first gear relative to the first gear, the moving direction of the linkage piece is perpendicular to the moving direction of the spring bolt, a transmission part is arranged on the transmission piece, a shifting part is arranged on the shifting piece, two ends of the linkage piece are respectively provided with a butting part, the transmission part and the shifting part are arranged at two ends of the linkage piece, and the transmission part or the shifting part enables the linkage piece to move through the butting part at the corresponding push-pull end.
In foretell small drag prevents backstepping pickproof lock, be equipped with on the first gear and be curved last portion of inserting, be equipped with on the above-mentioned drive plate and be curved slot, the arc center of going up portion of inserting and slot all sets up with the rotation center of first gear is concentric, the arc length of going up the portion of inserting is less than the arc length of slot.
In the anti-reverse-pushing anti-theft lock with small resistance, the lock body is provided with a locking station and an unlocking station of the first gear, the first gear is switched and rotated between the locking station and the unlocking station, the lock body is provided with an upper limit station, a middle station and a lower limit station of the transmission piece, the transmission piece can move from the upper limit station to the lower limit station through the middle station in the rotating process, when the first gear is positioned at the locking station, the transmission piece is positioned at the upper limit station, the lock tongue and the latch bolt both extend out of the lock body, at the moment, the dial wheel drives the first gear to rotate towards the unlocking station, the transmission piece synchronously moves along with the first gear, when the first gear is positioned at the unlocking station and the transmission piece is positioned at the lower limit station, the lock tongue and the latch bolt are both positioned in the lock body, and when the first gear is positioned at the unlocking station and the transmission piece is positioned at the middle station, the lock tongue is positioned in the lock body, and the latch bolt extends out of the lock body.
In the anti-reverse-pushing anti-theft lock with small resistance, the latch bolt is arranged on the lock body through a latch bolt rod, a spring which enables the latch bolt to always have an outward extending movement trend is arranged on the latch bolt rod, one end of the latch bolt rod is connected with the latch bolt, the other end of the latch bolt rod sequentially passes through a rod seat, a first limiting part and a second limiting part and then is connected with a stop part, the rod seat is fixed on the lock body, the shifting piece is provided with a shifting fork which is positioned between the rod seat and the first limiting part, the first limiting part and the second limiting part are movably sleeved on the latch bolt rod, the cross section of the latch bolt rod is circular, the first limiting part is provided with a through hole for penetrating the latch bolt rod, the through hole is matched with the external diameter shape and size of the latch bolt rod, the second limiting part is provided with a through hole groove for penetrating the latch bolt rod, the through hole groove is formed by connecting and combining two arc holes different in size, the two arc holes are divided into a first arc hole and a second arc hole, the inner diameter of the first arc hole is larger than the outer diameter of the stop part, the outer diameter of the stop part is larger than the inner diameter of the second arc hole, the second limiting part can move relative to the oblique tongue rod in the radial direction to enable the oblique tongue rod to be switched between the two arc holes, an elastic part is further arranged on the lock body, the oblique tongue rod is located in the second arc hole under the independent action of the elastic part, the second limiting part can enable the second limiting part to overcome the action force of the elastic part to enable the oblique tongue rod to move in the radial direction relative to the oblique tongue rod to enable the oblique tongue rod to enter the first arc hole, and when the oblique tongue rod is located in the first arc hole, the oblique tongue rod can move along the oblique tongue extending direction of the lock body to the oblique tongue to extend out of the lock body completely under the action of the spring.
In the small-resistance anti-reverse-pushing anti-theft lock, the shifting shaft is provided with a second tooth piece, the second tooth piece can be driven to rotate in the rotating process of the shifting shaft, and the second tooth piece is externally meshed with the first tooth piece.
Compared with the prior art, the invention has the advantages that:
1. when the lock is unlocked or locked, the transmission among the lock core, the lock tongue and the world pole mainly depends on tooth transmission, the transmission precision is high, and the transmission pin mainly pushes the lock tongue plate by abutting against the linkage groove, the friction stroke of the transmission pin and the linkage groove is small, and the transmission resistance is small;
2. the first transmission pin is matched with the first locking position, so that the spring bolt can be prevented from being pushed in or pulled out under the action of external force, the spring bolt is ensured to be reliably locked, and the anti-theft effect can be effectively improved;
3. the oblique tongue can reverse, the reversing operation is convenient, and the applicability of the lock body is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the lock body of the present invention with one side removed
FIG. 3 is a schematic view of the lock of the present invention with both sides of the lock body removed;
FIG. 4 is a schematic view of the extended bolt of the present invention;
FIG. 5 is a schematic view of the latch of the present invention when retracted;
FIG. 6 is a schematic view of the structure of the tongue plate;
FIG. 7 is a schematic structural diagram of a second position-limiting element;
FIG. 8 is an enlarged view of a portion of FIG. 6 at I;
fig. 9 is a schematic structural view of the first gear.
In the figure, 1, a lock body; 2. a latch bolt; 3. a latch bolt; 4. a tongue locking plate; 5. a guide groove; 6. a shaft is poked; 7. a thumb wheel; 8. a first gear; 9. a first tooth plate; 10. an upper insertion portion; 11. a limiting groove; 12. a first drive pin; 13. a longitudinal zone; 14. a lateral region; 15. a first locking position; 16. a circular arc edge; 17. a longitudinal edge; 18. a transverse edge; 19. a circular arc angle; 20. a first assist spring; 21. a top and bottom rod; 22. a second drive pin; 23. a transverse groove; 24. a longitudinal groove; 25. a rack; 26. a second gear; 27. a shifting sheet; 28. a linkage member; 29. a transmission part; 30. a toggle part; 31. an abutting portion; 32. a skew tongue bar; 33. a rod seat; 34. a first limit piece; 35. a second limit piece; 36. a stop portion; 37. a shifting fork; 38. a first circular arc hole; 39. a second circular arc hole; 40. a second tooth plate; 41. a guide post; 42. inserting slots; 43. a torsion spring; 44. a lower insertion portion; 45. a driving strap; 46. a clamping groove.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-9, the invention provides a small-resistance anti-reverse-pushing anti-theft lock, which comprises a lock body 1, a bolt 2 and a latch bolt 3, wherein the bolt 2 and the latch bolt 3 are arranged on the lock body 1, the bolt 2 is arranged on the lock body 1 through a bolt plate 4, the bolt plate 4 is provided with a guide groove 5 extending along the movement direction of the bolt 2, the lock body 1 is provided with a guide post 41, the guide post 41 is positioned in the guide groove 5, the bolt 2 can only move along a single direction through the matching and limiting of the guide post 41 and the guide groove 5, the lock body 1 is further provided with a lock cylinder for inserting a key and a shifting shaft 6 for installing handle square steel, the lock cylinder is rotatably provided with a shifting wheel 7, and the shifting wheel 7 can drive the bolt 2 to move through a first linkage structure in the rotating process, the first linkage structure comprises a first gear 8 and a first tooth piece 9, the first gear 8 is arranged at the lock cylinder, the first gear 8 is arc-shaped, an upper insertion part 10 and a lower insertion part 44 which are concentric with the first gear 8 are respectively arranged on the upper side surface and the lower side surface of the first gear 8, the insertion parts are arc-shaped strips, two sides of the first gear 8 on the lock body 1 are respectively provided with an arc-shaped limiting groove 11, the arc center of the limiting groove 11 is concentric with the first gear 8, the upper insertion part 10 and the lower insertion part 44 are respectively arranged in the two limiting grooves 11 to limit the first gear 8 to move only along the limiting grooves 11, and the shifting wheel 7 enables the first gear 8 to rotate clockwise or anticlockwise around the rotation center of the shifting wheel 7 by pushing the end surfaces at two ends of the first gear 8.
The first tooth plate 9 is positioned at one side of the lock tongue plate 4, the first tooth plate 9 is rotatably arranged on the lock body 1 through the guide post 41, and the first tooth plate 9 is externally meshed with the first gear 8, so that the first gear 8 can rotate to drive the first tooth plate 9 to rotate around the guide post 41;
the first tooth plate 9 is further provided with a first transmission pin 12, the first transmission pin 12 is cylindrical, the tongue locking plate 4 is provided with a first linkage groove, the first linkage groove is of a symmetrical structure, the first transmission pin 12 is located in the first linkage groove, the first linkage groove comprises a longitudinal area 13 and a transverse area 14, the longitudinal area 13 extends along the movement direction of the tongue locking plate 2, the extending direction of the transverse area 14 is perpendicular to the extending direction of the longitudinal area 13, the transverse area 14 is butted at one side of the longitudinal area 13 and is communicated with the longitudinal area 13, the left end of the transverse area 14 is connected with the longitudinal area 13, the right end of the transverse area 14 penetrates through the edge of the tongue locking plate 4, as shown in fig. 8, the inner circumference of the longitudinal area 13 is formed by combining two first locking positions 15, two arc edges 16 and a longitudinal edge 17, the longitudinal edge 17 extends along the extending direction of the longitudinal area 13, the two first locking positions 15 correspond to the two arc edges 16 one to one, the arc edge 16 is arc-shaped, the openings of the two arc edges 16 are arranged oppositely, the extending direction of the connecting line of the arc centers of the two arc edges 16 is consistent with the moving direction of the bolt 2, the first locking position 15 is a straight line edge, the two arc edges 16 are respectively arranged at the two ends of the longitudinal edge 17, one end of each arc edge 16 is connected with the longitudinal edge 17, the other end of each arc edge is connected with one end of the corresponding first locking position 15, the inner periphery of the transverse area 14 is formed by combining two parallel transverse edges 18, the transverse edges 18 extend along the extending direction of the transverse area 14, the two transverse edges 18 are in one-to-one correspondence with the two first locking positions 15, the two ends of each first locking position 15 are respectively connected with the corresponding transverse edges 18 and the corresponding arc edges 16, the arc angle 19 at the joint of the first locking positions 15 and the transverse edges 18 is in transition, and the straight line distance of the arc centers of the two arc edges 16 is smaller than the straight line distance between the two transverse edges 18.
The both ends of the extending direction of the longitudinal area 13 are divided into a front end and a rear end, when the first transmission pin 12 is positioned at the front end of the longitudinal area 13, the lock tongue 2 extends out of the lock body 1, when the first transmission pin 12 is positioned at the rear end of the longitudinal area 13, the lock tongue 2 is positioned in the lock body 1, the first transmission pin 12 can move to the other end of the longitudinal area 13 from one end of the longitudinal area 13 through the transverse area 14 in the rotating process along with the first tooth piece 9, and the first transmission pin 12 can drive the lock tongue plate 4 to move to enable the lock tongue 2 to extend out or retract into the lock body 1 by abutting against the inner periphery of the first linkage groove in the moving process.
Taking fig. 5 as an example, at this time, in an unlocking state, the first transmission pin 12 is located at the rear end of the longitudinal region 13, when the key is rotated to lock, the first transmission pin 12 firstly rotates clockwise along with the first tooth 9 and circumferentially leaves the rear end of the longitudinal region 13, then part or all of the first transmission pin 12 enters the transverse region 14, the first transmission pin 12 continues to rotate and can be contacted and abutted against an arc angle 19 corresponding to the front end, namely an arc angle 19 at the left end of the first linkage groove, the tongue plate 4 is always stationary in the above process, only after the first transmission pin 12 contacts the arc angle 19, the tongue plate 4 can be pushed by the first transmission pin 12 to extend outwards until the tongue plate is stretched in place, and after the tongue plate is stretched in place, the first transmission pin 12 just moves into the front end; similarly, in the unlocking process, the first transmission pin 12 moves from the front end to the transverse area 14 first until the first transmission pin abuts against the arc angle 19 corresponding to the rear end, namely the arc angle 19 at the right end of the first linkage groove, the bolt plate 4 is also kept stationary in the process, and the bolt plate 4 can only retract the bolt 2 into the lock body 1 under the pushing of the first transmission pin 12 after the first transmission pin contacts the arc angle 19
The two first locking positions 15 are used for preventing the lock tongue 2 from being pushed into or pulled out of the lock body 1 under the action of external force, the lock body 1 is further provided with a first boosting spring 20, the first boosting spring 20 is similar to a V shape, when the lock tongue 2 is positioned in the lock body 1, a V-shaped opening of the first boosting spring 20 faces a hole of the lock tongue 2, when the lock tongue 2 is positioned outside the lock body 1, a V-shaped opening of the first boosting spring 20 faces the direction opposite to the direction when the lock tongue 2 is positioned in the lock body 1, two ends of the first boosting spring 20 respectively act on the lock body 1 and the first tooth plate 9, the acting force of the first boosting spring 20 is used for locking the first transmission pin 12 at the front end or the rear end, and when the external force directly pulls the lock tongue 2 or pushes the lock tongue 2 without passing through a key or an unlocking handle, that is, when the tongue plate 4 needs to actively move relative to the first transmission pin 12, the first transmission pin 12 will abut against the corresponding first locking position 15, the first transmission pin 12 will generate a locking force to the first locking position 15, and the external force pushing and pulling the tongue plate 2 will be finally converted into a resistance force resisting the locking force, and the direction of the locking force is just coincident with or close to the connection line between the first transmission pin 12 and the center of the guide post 41, so the direction of the resistance force is the radial direction of the rotation circumference of the first transmission pin 12, not the tangential direction, and therefore the direction of the resistance force cannot make the first transmission pin 12 rotate around the guide post 41, so the first transmission pin 12 cannot give way, the tongue plate 4 cannot be pulled or pushed, and the tongue plate 4 can only move when the first transmission pin 12 is actively moved prior to the tongue plate 4.
The lock body 1 is further provided with a two-day ground rod 21, the two-day ground rod 21 is in transmission connection with the first toothed sheet 9 through a second linkage structure, the two-day ground rod 21 can move under the driving of the first toothed sheet 9, the moving direction of the two-day ground rod 21 is perpendicular to the moving direction of the lock bolt 2, the second linkage structure comprises a second transmission pin 22 arranged on the first toothed sheet 9 and a second linkage groove arranged on the one-day ground rod 21, the second transmission pin 22 is cylindrical, the structural shape and action principle of the second linkage groove are the same as those of the first linkage groove, the second linkage groove comprises a transverse groove 23 and a longitudinal groove 24 which are communicated with each other, the transverse groove 23 extends along the moving direction of the top and ground rod 21, the longitudinal groove 24 extends along the moving direction of the lock bolt 2, the longitudinal groove 24 is in butt joint with one side of the transverse groove 23, two second locking positions are arranged on the inner periphery of the transverse groove 23, the action principle of the second locking positions is the same as that of the first locking position 15, the ground rod 21 is provided with a rack 25, the rack 25 extends along the moving direction of the top and the ground rod 21, the rack 25 is provided with a second gear 26, the lock body 1, and the second gear 26 can rotate along the second gear 26, and the second gear 26, the two-day ground rod 21 and the second gear 26, and the second gear 26 can drive the two-day ground rod 21 to move through the second gear 26, and the second gear 26.
A shifting sheet 27 for driving the latch bolt 3 to move is arranged on the shifting shaft 6 for inserting square steel, a third linkage structure is further arranged between the first gear 8 and the shifting sheet 27 and comprises a transmission sheet 45 arranged on the first gear 8 and a linkage member 28 movably arranged on the lock body 1, an arc-shaped slot 42 is formed in the transmission sheet 45, the slot 42 and the first gear 8 are concentrically arranged, an upper insertion part 10 on the first gear 8 is inserted into the slot 42, the arc length of the upper insertion part 10 is smaller than that of the slot 42, the design purpose is to enable the transmission sheet 45 to move relative to the first gear 8, the transmission sheet 45 can rotate around the rotation center of the first gear 8 relative to the first gear 8, the moving direction of the linkage member 28 is vertical to the moving direction of the latch bolt 2, a transmission part 29 is arranged on the transmission sheet 45, a shifting part 30 is arranged on the shifting sheet 27, two ends of the linkage member 28 are vertically bent downwards to form an abutting part 31, the transmission part 29 and the shifting part 30 are respectively arranged at two ends of the linkage member 28 and are abutted to the inner side of the shifting part 31, and the linkage part 29 or the linkage part 31 makes the linkage member move linearly through the linear movement of the shifting part 31;
a lock body 1 is provided with a locking station and an unlocking station of a first gear 8, the first gear 8 is switched and rotated between the locking station and the unlocking station, the lock body 1 is provided with an upper limit station, a middle station and a lower limit station of a driving sheet 45, the driving sheet 45 can move from the upper limit station to the lower limit station through the middle station in the rotating process, as shown in figure 4, when the first gear 8 is positioned at the locking station and the driving sheet 45 is positioned at the upper limit station, a lock tongue 2 and an oblique tongue 3 both extend out of the lock body 1, at the moment, a wave wheel rotates clockwise to simultaneously push the first gear 8 and the driving sheet 45 to rotate, as shown in figure 5, when the first gear 8 is positioned at the unlocking station and the driving sheet 45 is positioned at the middle station, the lock tongue 2 is positioned in the lock body 1, the oblique tongue 3 extends out of the lock body 1, and when the first gear 8 is positioned at the unlocking station and the driving sheet 45 is positioned at the lower limit station, the lock tongue 2 and the oblique tongue 3 are both positioned in the lock body 1.
The latch bolt 3 is arranged in the hole of the latch bolt 3, when the latch bolt 3 is positioned in the hole of the latch bolt 3, the latch bolt 3 can not be rotated for reversing, the latch bolt 3 is arranged on the lock body 1 through a latch bolt rod 32, the latch bolt rod 32 is provided with a spring which enables the latch bolt 3 to always have an outward extending movement trend, the spring is sleeved on the latch bolt rod 32, one end of the latch bolt rod 32 is connected with the latch bolt 3, the other end of the latch bolt rod 32 sequentially passes through a rod seat 33, a first limiting part 34 and a second limiting part 35 and then is connected with a stop part 36, the rod seat 33 is fixed on the lock body 1, the shifting piece 27 is provided with a shifting fork 37, the shifting fork 37 is positioned between the rod seat 33 and the first limiting part 34, the first limiting part 34 can be pushed by the shifting fork 37 to enable the latch bolt 3 to retract into the lock body 1 in the rotation process of the shifting piece 27, the first limiting part 34 and the second limiting part 35 are movably sleeved on the latch bolt rod 32, the cross section of the latch bolt rod 32 is circular, the first limiting part 34 is provided with a through hole for the latch bolt rod 32, the through hole is matched with the outer diameter, shape and size of the oblique tongue rod 32, the stop part 36 is circular, the outer diameter of the stop part 36 is larger than the inner diameter of the through hole, a through hole groove for penetrating the oblique tongue rod 32 is formed in the second limiting part 35, the through hole groove is formed by communicating and combining two arc holes different in size, the two arc holes are divided into a first arc hole 38 and a second arc hole 39, the inner diameter of the first arc hole 38 is larger than the outer diameter of the stop part 36, the outer diameter of the stop part 36 is larger than the inner diameter of the second arc hole 39, the second limiting part 35 can move radially relative to the oblique tongue rod 32 to switch the position of the oblique tongue rod 32 between the two arc holes, an elastic part is further arranged on the lock body 1 and is a torsion spring 43, the second limiting part 35 is provided with a clamping groove 46 for clamping the torsion spring 43, the oblique tongue rod 32 is located in the second arc hole 39 under the independent action of the elastic part, and the second limiting part 35 can overcome the action force of the elastic part to move radially relative to the oblique tongue rod 32 under the action of the second limiting part 35 The latch bolt 32 enters the first arc hole 38, when the latch bolt 32 is located in the first arc hole 38, because the inner diameter of the first arc hole 38 is larger than the stop portion 36, the stop portion 36 can pass through the first arc hole 38, so the latch bolt 32 can move along the direction that the latch bolt 3 extends out of the lock body 1 under the action of the spring until the latch bolt 3 extends out of the lock body 1 completely, and when the latch bolt 3 extends out of the lock body 1 completely, the latch bolt 3 can rotate together with the latch bolt 32 to change the direction, so as to adapt to left-opening and right-opening doors.
The shifting shaft 6 is further provided with a second tooth piece 40, the second tooth piece 40 is meshed with the first tooth piece 9 in the outside, the handle drives the shifting shaft 6 to rotate, the second tooth piece 40 can be driven to rotate in the rotating process, and the second tooth piece 40 can drive the first tooth piece 9 to rotate so as to achieve unlocking and locking.
The working principle is as follows:
with reference to fig. 4 and 5, when the key is unlocked: the key makes the first gear 8 rotate clockwise synchronously through the thumb wheel 7, the first gear 8 drives the first tooth piece 9 to rotate anticlockwise, the first transmission pin 12 and the second transmission pin 22 on the first tooth piece 9 rotate anticlockwise synchronously, the bolt 2 and the ground rod 21 both retract into the lock body 1 by acting on the first linkage groove and the second linkage groove, meanwhile, the transmission piece 45 rotates clockwise synchronously in the rotation process of the first gear 8, the transmission part 29 on the transmission piece 45 gradually approaches to the abutting part 31 at the lower end of the linkage piece 28 and then pulls down the abutting part 31 in the rotation process of the transmission piece 45, the linkage piece 28 moves downwards, the toggle part 30 on the lower end abutting part 31 in the downward movement process of the linkage piece 28 pulls the pull piece 27 to rotate the oblique bolt 3 clockwise through the shifting fork 37 to retract into the lock body 1, when the bolt 2, the oblique bolt 3 and the ground rod 21 all retract into the lock body 1 in place, the door can be opened at the moment, then the key is released, the oblique bolt 3 can extend out under the action of the spring, the reset piece 27, the linkage piece 28 and the transmission piece 42 can be inserted into the lock body 10 and can move in the opposite direction due to the difference of the reverse arc transmission piece 10, and the transmission piece can be inserted into the reverse return transmission piece 10 in the opposite direction.
It should be understood that in the claims and specification of the present invention, all of "including 8230 \8230;" is to be understood as an open meaning, i.e., the meaning is equivalent to "including at least 8230; \8230;" 8230; "and is not to be understood as a closed meaning, i.e., the meaning is not to be understood as" including only 8230; \8230; "8230;".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A small-resistance anti-reverse-pushing anti-theft lock comprises a lock body (1), a lock bolt (2) and an inclined bolt (3) which are arranged on the lock body (1), a lock cylinder for inserting a key is further arranged on the lock body (1), a shifting wheel (7) is arranged on the lock cylinder, a shifting shaft (6) for installing square steel is further arranged on the lock body (1), and a shifting sheet (27) for driving the inclined bolt (3) to move is arranged on the shifting shaft (6), and is characterized in that the lock bolt (2) can be driven to move through a first linkage structure in the rotating process of the shifting wheel (7), the first linkage structure comprises a first gear (8) and a first tooth sheet (9), the first gear (8) can rotate around the rotation center of the shifting wheel (7) relative to the lock body (1) under the driving of the shifting wheel (7), the first tooth piece (9) is rotatably arranged on the lock body (1) and the first gear (8) is meshed with the first tooth piece (9), a first transmission pin (12) is further arranged on the first tooth piece (9), the lock tongue (2) is arranged on the lock tongue plate (4), a first linkage groove is formed in the lock tongue plate (4), the first transmission pin (12) is located in the first linkage groove, the first linkage groove comprises a longitudinal area (13) and a transverse area (14), the longitudinal area (13) extends along the movement direction of the lock tongue (2), and the extension direction of the transverse area (14) and the extension direction of the longitudinal area (13) are mutually perpendicular The lock comprises a longitudinal area (13), a first transmission pin (12), a transverse area (14), two first locking positions (15) and two first locking positions (15), wherein the two ends of the longitudinal area (13) in the extending direction are divided into a front end and a rear end, when the first transmission pin (12) is located at the front end of the longitudinal area (13), the lock tongue (2) extends out of the lock body (1), when the first transmission pin (12) is located at the rear end of the longitudinal area (13), the lock tongue (2) is located in the lock body (1), the transverse area (14) is in butt joint with one side of the longitudinal area (13) and is communicated with the longitudinal area (13), the first transmission pin (12) can move from one end of the longitudinal area (13) to the other end of the longitudinal area (13) through the transverse area (14) in the moving process of the first tooth plate (9), the two first locking positions (15) are arranged on the inner circumference of the longitudinal area (13), the two first locking positions (15) correspond to the front end and the rear end of the longitudinal area (13), when the first transmission pin (12) is located at the front end or the rear end, the front end of the first transmission pin (12), external force acts on the lock tongue (4) to enable the first transmission pin (12) to move relative to abut against the first transmission pin (12), and drive the first transmission pin (12) when the first transmission pin (12) moves, the first transmission pin (12) and the first transmission pin can move, the first transmission pin (12) can move from the front end or the upper limit position (14) and the rear end of the first transmission pin (12) when the first transmission pin (12) moves.
2. A low resistance anti-bounce anti-theft lock according to claim 1, characterised in that the first locking position (15) is a part of the inner circumference of the longitudinal section (13) and the first locking position (15) is a straight edge.
3. The small-resistance anti-reverse-pushing anti-theft lock according to claim 2 is characterized in that the inner periphery of the longitudinal area (13) is formed by combining two first locking positions (15), two circular arc edges (16) and a longitudinal edge (17), the longitudinal edge (17) extends along the extending direction of the longitudinal area (13), the two first locking positions (15) correspond to the two circular arc edges (16) one by one, the circular arc edges (16) are circular arc-shaped, openings of the two circular arc edges (16) are oppositely arranged, the extending direction of a connecting line of circular arc centers of the two circular arc edges (16) is consistent with the moving direction of the lock tongue (2), the two circular arc edges (16) are respectively arranged at two ends of the longitudinal edge (17), one end of each circular arc edge (16) is connected with the longitudinal edge (17), the other end of each circular arc edge is connected with one end of the corresponding first locking position (15), the inner periphery of the transverse area (14) is formed by combining two parallel transverse edges (18), the two transverse edges (18) correspond to the two first locking positions (15) one by one, the two transverse ends of each other, the first locking position (15) are connected with the corresponding transverse edges (18), and the transverse edges (18) are connected with the transverse locking positions (19), and the transverse locking angles (18) are connected with the first locking positions (15).
4. A low resistance anti-back-thrust anti-theft lock according to claim 3, characterized in that the straight distance between the arc centers of the two arc edges (16) is smaller than the straight distance between the two transverse edges (18).
5. The small-resistance anti-reverse-pushing anti-theft lock according to any one of claims 1 to 4, wherein a two-day ground rod (21) is further arranged on the lock body (1), the two-day ground rod (21) is in transmission connection with the first tooth piece (9) through a second linkage structure, the top and bottom rod (21) can move under the driving of the first tooth piece (9), the moving direction of the top and bottom rod (21) is perpendicular to the moving direction of the lock tongue (2), the second linkage structure comprises a second transmission pin (22) arranged on the first tooth piece (9) and a second linkage groove arranged on the one-day ground rod (21), the second linkage groove comprises a transverse groove (23) and a longitudinal groove (24) which are communicated with each other, the transverse groove (23) extends along the moving direction of the top and bottom rod (21), the longitudinal groove (24) extends along the moving direction of the lock tongue (2), and the longitudinal groove (24) is butted on one side of the transverse groove (23).
6. A small-resistance anti-reverse-pushing anti-theft lock as claimed in claim 5, wherein two of said top and bottom rods (21) are provided with racks (25), the racks (25) extend along the moving direction of the top and bottom rods (21), said lock body (1) is further rotatably provided with a second gear (26), the second gear (26) is located between the two racks (25) and the second gear (26) is engaged with both racks (25).
7. The small-resistance anti-reverse-pushing anti-theft lock according to any one of claims 1 to 4, characterized in that a third linkage structure is further arranged between the first gear (8) and the shifting piece (27), the third linkage structure comprises a transmission piece (45) arranged on the first gear (8) and a linkage piece (28) movably arranged on the lock body (1), the transmission piece (45) can move synchronously with the first gear (8), the transmission piece (45) can also rotate around the rotation center of the first gear (8) relative to the first gear (8), the moving direction of the linkage piece (28) is perpendicular to the moving direction of the lock tongue (2), a transmission part (29) is arranged on the transmission piece (45), a shifting part (30) is arranged on the shifting piece (27), two ends of the linkage piece (28) are respectively provided with an abutting part (31), the transmission part (29) and the shifting part (30) are respectively arranged at two ends of the linkage piece (28), and the transmission part (29) or the shifting part (30) can abut against the linkage piece (28) through the pushing and pulling part (31) corresponding to make the pushing and pulling part (28) move.
8. The lock according to claim 7, wherein the first gear (8) is provided with an upper insertion portion (10) having an arc shape, the driving strap (45) is provided with an insertion slot (42) having an arc shape, the arc centers of the upper insertion portion (10) and the insertion slot (42) are concentric with the rotation center of the first gear (8), and the arc length of the upper insertion portion (10) is smaller than the arc length of the insertion slot (42).
9. The lock according to any one of claims 1-4, wherein the latch bolt (3) is disposed on the lock body (1) through a latch bolt rod (32), the latch bolt rod (32) is provided with a spring for always allowing the latch bolt (3) to move outward, one end of the latch bolt rod (32) is connected to the latch bolt (3), the other end of the latch bolt rod sequentially passes through a bolt seat (33), a first stopper (34), and a second stopper (35) and then is connected to a stop portion (36), the bolt seat (33) is fixed to the lock body (1), the shifting piece (27) is provided with a shifting fork (37), the shifting fork (37) is disposed between the bolt seat (33) and the first stopper (34), the first stopper (34) and the second stopper (35) are movably sleeved on the latch bolt rod (32), the cross section of the latch bolt rod (32) is circular, the first stopper (34) is provided with a through hole for the latch bolt (32), the through hole is formed by the latch bolt rod (32) and the second stopper (35), the latch bolt hole is formed by combining two arc holes (38), the first stopper (34) and the second stopper (32) with a through hole, the two arc holes (38) having different diameters, the outer diameter of the stop part (36) is larger than the inner diameter of a second arc hole (39), a second limiting part (35) can move radially relative to the latch rod (32) to enable the position of the latch rod (32) to be switched between the two arc holes, an elastic part is further arranged on the lock body (1), the latch rod (32) is located in the second arc hole (39) under the independent action of the elastic part, the second limiting part (35) can overcome the action force of the elastic part to enable the second limiting part (35) to move radially relative to the latch rod (32) to enable the latch rod (32) to enter the first arc hole (38) under the action of external force, and when the latch rod (32) is located in the first arc hole (38), the latch rod (32) can move along the direction that the latch bolt (3) extends out of the lock body (1) under the action of the spring until the latch bolt (3) extends out of the lock body (1) completely.
10. A low resistance anti-back-pushing anti-theft lock according to any one of claims 1-4, characterized in that the said shaft (6) is provided with a second toothed plate (40), the shaft (6) is capable of rotating the second toothed plate (40), the second toothed plate (40) is engaged with the said first toothed plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211217363.1A CN115467588A (en) | 2022-10-03 | 2022-10-03 | Small-resistance anti-reverse-pushing anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211217363.1A CN115467588A (en) | 2022-10-03 | 2022-10-03 | Small-resistance anti-reverse-pushing anti-theft lock |
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| CN115467588A true CN115467588A (en) | 2022-12-13 |
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|---|---|---|---|
| CN202211217363.1A Pending CN115467588A (en) | 2022-10-03 | 2022-10-03 | Small-resistance anti-reverse-pushing anti-theft lock |
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| CN (1) | CN115467588A (en) |
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