Multi-point mechanical lock

Abstract

The utility model relates to the technical field of locksets, in particular to a multipoint mechanical lock which comprises a shell, a square core component, a transmission strip, a positioning column and a rack structure, the square core component and the transmission strip are arranged in the shell, a first positioning groove is further formed in the transmission strip, and a second positioning groove is further formed in the transmission strip. According to the multi-point mechanical lock, the model number of the multi-point mechanical lock is 92: 25, a square core part used for driving a spring bolt assembly is improved, compared with the mode that a third rotating transmission piece is provided with a convex point and is matched with a groove in the shell in a limiting mode, the convex point is matched with the groove in the shell in a limiting mode, and therefore the stability of the multi-point mechanical lock is improved. According to the structure, the stroke of the structure is directly limited through the square core part, namely, a second inner linkage block and a second inner linkage groove are in rotary limiting fit, and a second transmission pin and an arc-shaped groove are in rotary limiting fit, so that a third rotary transmission piece is fixed more firmly, the rotary fit is more stable, the service life of the lock is effectively prolonged, and the size of the lock is reduced; materials are reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lock technology field, concretely is multi -point mechanical lock. BACKGROUND

[0002] Multi -point lock is one kind of anti -theft lock, on the basis of the latch and the square tongue with the door body locking function, still add the upper locking piece and the lower locking piece, while the latch and the square tongue lock the door body, through the linkage mechanism of the lock to make the upper locking piece and the lower locking piece lock the door body simultaneously, to improve the anti -theft and the performance of the door body of prying;

[0003] The linkage mechanism of the conventional multi -point lock includes the casing, the rotary transmission part and the lock tongue transmission part, the rotary transmission part is rotatably arranged in the casing, the rotary transmission part is provided with a square hole for inserting the handle square bar to drive the reciprocating rotation, the lock tongue transmission part is vertically moved in the casing and is linked with the upper locking piece and the lower locking piece, the outer periphery of the conventional rotary transmission part is provided with a transmission pin penetrating through the lock tongue transmission part, so that when the rotary transmission part rotates, the transmission pin is vertically moved under the driving of the transmission pin relative to the lock tongue transmission part, since the transmission angle of the handle square bar is a specified angle, in order to make the upper lock tongue and the lower lock tongue can move with the lock tongue transmission part enough straight line stroke, it is necessary to increase the distance between the rotary transmission part rotation center and the transmission pin, that is, to increase the volume of the rotary transmission part, so that the volume of the multi -point lock also increases, which wastes materials and increases the manufacturing cost, therefore, the multi -point mechanical lock is proposed. SUMMARY

[0004] Therefore, the utility model provides multi -point mechanical lock to solve or alleviate the technical problems in the prior art, at least provides an advantageous choice.

[0005] The technical scheme of the utility model is realized as follows: a multi -point mechanical lock, including casing, square core part, transmission bar, positioning column and rack structure, the square core part and the transmission bar are arranged in the inside of the casing, first positioning groove is still arranged on the transmission bar, positioning assembly that cooperates with first positioning groove is still arranged in the casing, second positioning groove is still arranged on the transmission bar, the reverse lock assembly is built -in in the casing, the positioning column is fixedly connected to the inner side wall of the casing, the rack structure is installed in the inside of the casing.

[0006] Further preferably, the square core part includes a square core body with a square hole, a first rotation part and a second rotation part on the outer periphery of the square core body, the second rotation part includes a second rotating member, a third rotating member, and a third rotation transmission part, a second inner linkage groove is formed on the inner wall of the third rotation transmission part, a second inner linkage block is provided on the outer periphery of the third rotating member, a second transmission pin is provided on the second rotating member, the third rotation transmission part is provided with an arc-shaped groove, and the third rotation transmission part is provided with an oscillating arm.

[0007] Further preferably, the third rotating member is integrally formed with a gear portion on the outer side wall, the housing is internally provided with a torsion spring, the rack structure is provided with a torsion spring slot, the torsion spring is located in the torsion spring slot, the gear portion cooperates with the rack structure and the torsion spring, the transmission bar is provided with a positioning arm, the torsion spring is sleeved on a torsion spring mounting column, and the upper end of the torsion spring mounting column cooperates with the positioning arm to vertically limit the transmission bar.

[0008] Further preferably, the positioning assembly comprises a ball, the first positioning slot has a width smaller than the diameter of the ball so that the ball is limited to slide relative to the first positioning slot, the positioning assembly further comprises a mounting column, the mounting column is provided with a mounting hole having a diameter smaller than the diameter of the ball, and the ball is limited between the mounting hole and the first positioning slot.

[0009] Further preferably, the anti-lock assembly comprises a first positioning plate and a second positioning plate which realize anti-lock and release of anti-lock through relative movement, the first positioning plate is provided with a protruding portion which realizes anti-lock by cooperating with the second positioning slot, the protruding portion has a non-anti-lock position in which one end of the protruding portion abuts against the side edge of the transmission bar, and has an anti-lock position in which the protruding portion is displaced into the second positioning slot, the second positioning plate is provided with a first strip-shaped slot, and the positioning column passes through the first strip-shaped slot.

[0010] Further preferably, the first rotating portion comprises a first rotating member connected to the outer periphery of the square core body and a first rotating transmission member sleeved outside the first rotating member, the inner wall of the first rotating transmission member is provided with a first inner linkage groove, the upper end surface of the first rotating transmission member is provided with a first transmission pin in protrusion, the outer periphery of the first rotating member is provided with a first inner linkage block which is limited to cooperate with the first inner linkage groove, and the first transmission pin is limited to cooperate with a transmission slot provided on the transmission bar.

[0011] Further preferably, the first positioning slot is in the shape of "∞", and a spring is arranged in the mounting hole to tightly push the ball and the first positioning slot.

[0012] Further preferably, the outer periphery of the third rotating transmission member is in an arc shape, and the mounting column is located to the side of the third rotating transmission member to limit the third rotating transmission member.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical scheme.

[0014] The utility model improves the square core part for driving lock tongue subassembly, compared to setting convex point and shell on groove limit cooperation on third rotation transmission spare, this structure directly through square core part itself to its stroke limit, namely through second inner linkage block and second inner linkage groove rotation limit cooperation, second transmission pin and arc slot rotation limit cooperation, make third rotation transmission spare fixed more firmly, rotation cooperation is more stable, effectively prolongs the service life of lock, and reduces the volume of lock, reduces material use, reduces production cost.

[0015] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be apparent from a consideration of the drawings and following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 It is the overall structure appearance drawing of the utility model;

[0018] Figure 2 It is the internal structure drawing of the utility model;

[0019] Figure 3 It is the internal structure drawing of the utility model (without transmission bar);

[0020] Figure 4 It is the square core part assembly drawing of the utility model;

[0021] Figure 5 It is the square core part explosion drawing of the utility model;

[0022] Figure 6 It is the second rotation part structure drawing of the utility model;

[0023] Figure 7 Among them, A is the third rotation part and the third rotation transmission part cooperation state schematic drawing (unlocking state) of the utility model, B is the cooperation state schematic drawing of the utility model and the third rotation transmission part relative rotation;

[0024] Figure 8 It is the transmission bar and its cooperation structure schematic drawing of the utility model;

[0025] Figure 9It is partial structure schematic view (without transmission bar) of the utility model.

[0026] Figure 10 It is structure schematic view of square core part and anti-lock assembly of the utility model.

[0027] Figure 11 Among them, C is transmission bar and anti-lock structure cooperation state schematic view (not anti-lock state), D is transmission bar and anti-lock structure cooperation state schematic view (anti-lock state).

[0028] Fig. 10, housing;20, square core part;201, square hole;210, first rotating part;211, first rotary transmission part;212, first inner linkage groove;213, first inner linkage block;214, first transmission pin;220, second rotating part;221, second transmission pin;230, third rotating part;231, third rotary transmission part;232, gear part;233, second inner linkage groove;234, second inner linkage block;235, arc-shaped groove;236, swing arm;30, transmission bar;31, transmission groove;302, first positioning groove;303, second positioning groove;304, positioning arm;40, mounting column;41, ball;50, first positioning plate;501, second positioning plate;502, protruding part;503, first strip-shaped groove;60, positioning column;70, rack structure;701, torsional spring groove;702, torsional spring;703, torsional spring mounting column. DETAILED DESCRIPTION

[0029] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0030] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0031] As Figures 1-11 Indicated, the utility model embodiment provides multi-point mechanical lock, and model is 92:25, and the distance of square hole 201 on housing 10 from lock hole distance is 92, and housing 10 includes housing 10, square core part 20, transmission bar 30, positioning column 60 and rack structure 70, and square core part 20 and transmission bar 30 are arranged in the inside of housing 10, and still be provided with first positioning groove 302 on transmission bar 30, and still be provided with positioning assembly matched with first positioning groove 302 in housing 10, and still be provided with second positioning groove 303 on transmission bar 30, and housing 10 is built-in anti-lock assembly, and positioning column 60 is fixedly connected to the inner side wall of housing 10, and rack structure 70 is installed in the inside of housing 10.

[0032] In one embodiment, the square core component 20 includes a square core body with a square hole 201, a first rotating part and a second rotating part at the periphery of the square core body, the second rotating part including a second rotating member 220, a third rotating member 230 and a third rotating transmission member 231, the third rotating transmission member 231 having a second inner linkage groove 233 formed on the inner wall thereof, the third rotating member 230 having a second inner linkage block 234 formed on the periphery thereof, the second rotating member 220 having a second transmission pin 221 formed thereon, the third rotating transmission member 231 having an arc-shaped groove 235 and an oscillating arm 236 extending therefrom; the square core body is configured to rotate and drive the second rotating member 220 and the third rotating member 230 to rotate synchronously, so that the second inner linkage block 234 and the second transmission pin 221 are respectively limited to slide in the second inner linkage groove 233 and the arc-shaped groove 235, until the third rotating transmission member 231 oscillates and drives the lock bolt assembly to retract to an unlocking state, and the square core body resets to further reset the third rotating transmission member 231 and the lock bolt assembly to extend to a reset state.

[0033] In one embodiment, the third rotating member 230 has a gear part 232 integrally formed on the outer side wall thereof, the housing 10 has a torsion spring 702 and a torsion spring groove 701 formed on the rack structure 70, the torsion spring 702 is located in the torsion spring groove 701, the gear part 232 cooperates with the rack structure 70 and the torsion spring 702, the transmission bar 30 has a positioning arm 304, the torsion spring 702 is sleeved on a torsion spring mounting column 703, and the upper end of the torsion spring mounting column 703 cooperates with the positioning arm 304 to limit the vertical position of the transmission bar 30; the torsion spring 702 is compressed to drive the rack structure 70 to displace, thereby driving the gear part 232 to rotate and driving the third rotating transmission member 231 to rotate the square core body, the mounting column 40 is located on the side of the third rotating transmission member 231 to limit the third rotating transmission member 231, so that the outer wall of the third rotating transmission member 231 can rotate relative to the positioning column 60, but cannot displace in the horizontal or vertical direction.

[0034] In one embodiment, the positioning assembly includes a ball 41, the first positioning groove 302 has a width smaller than the diameter of the ball 41, so that the ball 41 is limited to slide relative to the first positioning groove 302, the positioning assembly further includes a mounting column 40 having a mounting hole with a diameter smaller than the diameter of the ball 41, and the ball 41 is limited between the mounting hole and the first positioning groove 302.

[0035] In one embodiment, the anti-lock assembly comprises a first positioning plate 50 and a second positioning plate 501 that achieve anti-lock and release by relative movement, and the first positioning plate 50 is provided with a protruding portion 502 that cooperates with the second positioning slot 303 to achieve anti-lock, the protruding portion 502 has a non-anti-lock position in which one end thereof abuts the side of the transmission bar 30, and an anti-lock position in which it is displaced into the second positioning slot 303, the second positioning plate 501 is provided with a first slot 503 through which the positioning column 60 passes, and the first positioning plate 50 is provided with a protruding portion 502 that cooperates with the second positioning slot 303 to achieve anti-lock, when the anti-lock assembly is in the anti-lock state, the first positioning plate 50 drives the square tongue to extend outward, and the protruding portion 502 is simultaneously displaced into the second positioning slot 303; the anti-lock principle and structure here are common structures known in the art, and will not be described in detail; the protruding portion 502 has a non-anti-lock position in which one end thereof abuts the side of the transmission bar 30, and an anti-lock position in which it is displaced into the second positioning slot 303, when the protruding portion 502 is in the non-anti-lock position, it is limited in the transverse direction by the transmission bar 30, and the transmission bar 30 is linked with the upper locking member 101 and the lower locking member 102.

[0036] In one embodiment, the first rotating portion comprises a first rotating member 210 connected to the outer periphery of the square core body and a first rotating transmission member 211 sleeved outside the first rotating member 210, the inner wall of the first rotating transmission member 211 is provided with a first inner linkage groove 212, the upper end face of the first rotating transmission member 211 is provided with a first transmission pin 214, the outer periphery of the first rotating member 210 is provided with a first inner linkage block 213 that is limited and cooperates with the first inner linkage groove 212, and the first transmission pin 214 is limited and cooperates with the transmission groove 31 provided on the transmission bar 30.

[0037] In one embodiment, the first positioning slot 302 is in the shape of “∞”, and a spring is provided in the mounting hole, the spring pushes the ball 41 to tightly cooperate with the first positioning slot 302.

[0038] In one embodiment, the outer periphery of the third rotating transmission member 231 is arc-shaped, and the mounting column 40 is located to the side of the third rotating transmission member 231 to limit the third rotating transmission member 231.

[0039] The utility model discloses a square core body has rotation and drive second rotary part 220 and third rotary part 230 synchronous rotation, make second inner linkage block 234, second transmission pin 221 respectively in second inner linkage groove 233, arc -shaped groove 235 limit slip, until third rotary transmission part 231 swing and drive lock bolt subassembly retracting and open the lock state of state;And, square core body reset and make third rotary transmission part 231 reset, lock bolt subassembly reset and extend reset state, when the reverse lock component is in the reverse lock state, first locating plate 50 horizontal displacement drive square tongue and extend outward, and this protruding portion 502 is displaced to second locating groove 303 simultaneously;Here reverse lock principle and structure are the general structure of the art, and here is not elaborated.

[0040] The above is only the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, and anyone skilled in the art can easily think of various changes or replacements within the technical range disclosed by the utility model, and these should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A multi-point mechanical lock, characterized in that: The device includes a housing (10), a square core component (20), a transmission bar (30), a positioning post (60), and a rack structure (70). The square core component (20) and the transmission bar (30) are disposed inside the housing (10). The transmission bar (30) is also provided with a first positioning groove (302). The housing (10) is also provided with a positioning component that cooperates with the first positioning groove (302). The transmission bar (30) is also provided with a second positioning groove (303). The housing (10) has a built-in anti-locking component. The positioning post (60) is fixedly connected to the inner side wall of the housing (10). The rack structure (70) is installed inside the housing (10).

2. The multi-point mechanical lock according to claim 1, characterized in that: The square core component (20) includes a square core body with a square strip hole (201), a first rotating part and a second rotating part on the outer periphery of the square core body, the second rotating part including a second rotating member (220), a third rotating member (230) and a third rotating transmission member (231), the inner wall of the third rotating transmission member (231) is provided with a second inner linkage groove (233), the outer periphery of the third rotating member (230) is provided with a second inner linkage block (234), the second rotating member (220) is provided with a second transmission pin (221), the third rotating transmission member (231) is provided with an arc groove (235), and the third rotating transmission member (231) extends to provide a swing arm (236).

3. The multi-point mechanical lock according to claim 2, characterized in that: The outer wall of the third rotating component (230) is integrally formed with a gear part (232). The housing (10) is provided with a torsion spring (702). The rack structure (70) is provided with a torsion spring groove (701). The torsion spring (702) is located inside the torsion spring groove (701). The gear part (232) cooperates with the rack structure (70) and the torsion spring (702). The transmission bar (30) is provided with a positioning arm (304). The torsion spring (702) is sleeved on the torsion spring mounting post (703). The upper end of the torsion spring mounting post (703) cooperates with the positioning arm (304) to vertically limit the transmission bar (30).

4. The multi-point mechanical lock according to claim 1, characterized in that: The positioning component includes a ball (41), the width of the first positioning groove (302) is smaller than the diameter of the ball (41) so that the ball (41) is limited to sliding relative to the first positioning groove (302). The positioning component also includes a mounting post (40), the mounting post (40) has a mounting hole with a diameter smaller than the diameter of the ball (41), and the ball (41) is limited between the mounting hole and the first positioning groove (302).

5. The multi-point mechanical lock according to claim 1, characterized in that: The anti-locking assembly includes a first positioning plate (50) and a second positioning plate (501) that achieve anti-locking and anti-locking through relative movement. A protrusion (502) protrudes from the first positioning plate (50) and cooperates with the second positioning groove (303) to achieve anti-locking. The protrusion (502) has a non-anti-locking position where one end abuts against the side of the transmission bar (30) and an anti-locking position where it is displaced into the second positioning groove (303). A first strip groove (503) is provided on the second positioning plate (501), and the positioning post (60) passes through the first strip groove (503).

6. The multi-point mechanical lock according to claim 2, characterized in that: The first rotating part includes a first rotating member (210) connected to the outer periphery of the square core body and a first rotating transmission member (211) sleeved outside the first rotating member (210). The inner wall of the first rotating transmission member (211) is provided with a first inner linkage groove (212), and a first transmission pin (214) is provided on the upper end face of the first rotating transmission member (211). The outer periphery of the first rotating member (210) is provided with a first inner linkage block (213) that is limited and cooperates with the first inner linkage groove (212). The first transmission pin (214) is limited and cooperates with the transmission groove (31) opened on the transmission bar (30).

7. The multi-point mechanical lock according to claim 4, characterized in that: The first positioning groove (302) is in the shape of "∞", and a spring is provided in the mounting hole. The spring pushes the ball (41) to fit tightly with the first positioning groove (302).

8. The multi-point mechanical lock according to claim 1, characterized in that: The outer periphery of the third rotary transmission component (231) is arc-shaped, and the mounting post (40) is located on the side of the third rotary transmission component (231) to limit the third rotary transmission component (231).

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