CN209924659U

CN209924659U - Cabinet door lock

Info

Publication number: CN209924659U
Application number: CN201920343007.1U
Authority: CN
Inventors: 项文广; 李乾兴; 周燕义
Original assignee: Wenzhou Yeeka Hardware Co Ltd
Current assignee: Wenzhou Yika Lock Technology Co., Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-01-10
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a cabinet door lock, which comprises a handle, the lock seat, the pivot and be used for locking/unblock complex pivot locking assembly between pivot and the lock seat, pivot normal running fit is on the lock seat, pivot one end installation handle, pivot other end drive is connected with the spring bolt, the spring bolt includes the lock tongue board and is used for locking the gyro wheel of cabinet door, lock tongue board fixed mounting is swung by the pivot drive in the pivot, the gyro wheel is installed in the swing end of lock tongue board, pivot locking assembly includes the lock core, the pivot is equipped with the lock core vestibule, the lock core can fix a position pivoted cooperation and lock core vestibule intracavity, lock core one end is equipped with and supplies the rotary tool atress in order to drive lock core pivoted instrument atress hole, lock core other end drive cooperation has the set bar that. The door locking device has the advantages of simple and compact structure, rolling to lock the door, reducing the friction force when the spring bolt is contacted with the door, ensuring reliable door locking, realizing the locking and unlocking operation of the handle by rotating the lock cylinder through a tool, and being simple and convenient to operate.

Description

Cabinet door lock

Technical Field

The utility model relates to a tool to lock technical field.

Background

The locking of cabinet door is realized to current cabinet door tool to lock adoption lock shaft drive platelike spring bolt, and the cooperation clearance is hour between spring bolt AND gate, and it is big to have the frictional force of spring bolt AND gate, causes the harm to door and spring bolt easily, and the cooperation clearance is too big between spring bolt AND gate, then the door rocks easily, especially to vibrations and sports equipment and facility. In addition, the existing cabinet door lock realizes unlocking by matching a lock core with a key, and the structure of the cabinet door lock is complex; or the lock can be unlocked by directly adopting a rotating handle, and the lock has a simple structure, can be unlocked without a key or a tool, and does not accord with the safety specification.

Disclosure of Invention

The utility model discloses the invention purpose: for overcoming the defect that prior art exists, the utility model provides a cabinet door lock that cabinet door locking is firm reliable, convenient operation has simple structure compact's advantage.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a cabinet door lock, includes handle, lock seat and pivot, and pivot normal running fit is on the lock seat, and pivot one end installation handle, pivot other end drive are connected with spring bolt, its characterized in that: the spring bolt comprises a bolt plate and a roller for locking the cabinet door, the bolt plate is fixedly arranged on the rotating shaft and driven by the rotating shaft to swing, and the roller is arranged at the swinging end of the bolt plate.

By adopting the technical scheme, the handle is rotated, the lock tongue plate is driven to swing through the rotating shaft, the roller on the lock tongue plate enters the corresponding position of the cabinet door, so that the cabinet door is locked, the roller is contacted with the cabinet door, the friction force of the lock tongue and the door can be reduced, the door locking and unlocking operation is smoother, the matching tightness between the lock tongue and the cabinet door can be improved, the cabinet door is locked more reliably, and the problem of door shaking caused by untight door locking can be avoided, particularly on vibration and motion equipment and facilities; the handle and the lock tongue are both arranged on the rotating shaft to realize transmission, and the handle and the lock tongue have the advantages of simple and compact structure and stable and reliable work.

Preferably, a roller shaft is integrally formed on the tongue locking plate, the roller is rotationally matched on the roller shaft, and an axial limiting part which is axially limited and matched with the roller to prevent the roller from withdrawing from the roller shaft is arranged at the outer end of the roller shaft. Under this structural design, gyro wheel axle and lock tongue board integrated into one piece, intensity is better, and the reliability is better, and the dismouting operation of gyro wheel is more convenient.

Preferably, the roller shaft is the step axle form that the diameter is little outward, big in, the wheel hole of gyro wheel includes the first shaft hole section with the big footpath shaft section adaptation of roller shaft, with the second shaft hole section of roller shaft path shaft section adaptation and the hole section of stepping down that arranges in proper order along the axial, and the hole section diameter of stepping down is greater than second hole section diameter, and corresponding forms the bulge loop between first shaft hole section and the hole section of stepping down, the roller shaft outer end is equipped with spacing jump ring, spacing jump ring and the spacing cooperation of bulge loop, and spacing jump ring is located the hole section of stepping down. Under this structural design, the gyro wheel is reliable in the cooperation of roller shaft, thereby the bulge loop supplies spacing jump ring limit to prevent that the gyro wheel from deviating from the roller shaft, in addition, the hole section of stepping down that forms realizes spacing jump ring hidden installation, and the structure is more compact and the appearance is more pleasing to the eye.

Preferably, the outer end outer circumference side of the roller is provided with a tapered guide surface having a small outside diameter and a large inside diameter. Under this structural design, the gyro wheel is when the lock goes into the cabinet door, and the toper spigot surface has the guide effect to make the gyro wheel more smooth and easy with the contact of cabinet door.

Preferably, the lock also comprises a rotating shaft locking assembly used for locking/unlocking matching between the rotating shaft and the lock seat, the rotating shaft locking assembly comprises a lock cylinder, the rotating shaft is provided with a lock cylinder hole cavity, the lock cylinder can be positioned and rotatably matched in the lock cylinder hole cavity, one end of the lock cylinder is provided with a tool stress hole for a rotating tool to be stressed so as to drive the lock cylinder to rotate, and the other end of the lock cylinder is in driving matching with a lock bolt which is rotated through the lock cylinder to form the locking/unlocking rotating shaft. Under the structural design, the lock cylinder is rotated through the tool action and the tool stress hole of the lock cylinder, the lock cylinder is rotated to drive the lock bolt to lock the rotating shaft on the lock seat or unlock the rotating shaft from the lock seat, so that the driving of the lock tongue can be completed by rotating the rotating shaft through the handle, and the actions of opening and locking the door are achieved; in addition, a lock cylinder mounting hole for mounting the lock cylinder is formed in the rotating shaft, the rotating shaft locking assembly is mounted on the rotating shaft, the handle is locked by means of the rotating shaft, and the lock cylinder locking assembly has the advantage of compact structure.

Preferably, the tool force-bearing hole is a cross-shaped groove counter bore arranged on the central rotation axis of the lock cylinder. Under this structural design, just can rotate the lock core with ordinary cross screwdriver and unblank, cross screwdriver is the simple and easy instrument of commonly used.

Preferably, the rotating shaft is provided with a lock bolt positioning hole along the radial direction, the lock bolt positioning hole penetrates through the cavity of the lock cylinder, the lock bolt is in sliding fit in the lock bolt positioning hole, the lock seat is provided with a locking hole corresponding to the position of the lock bolt positioning hole, the head of the lock bolt extends into/out of the locking hole to lock/unlock the rotating shaft on the lock seat, and a transmission mechanism for converting the rotating motion of the lock cylinder into the axial sliding of the lock bolt is matched between the lock cylinder and the lock bolt. Under the structural design, the lock bolt realizes the locking and unlocking of the rotating shaft in an axial movement mode, the structure is simple, and the action of the lock bolt is more stable and reliable.

Preferably, the transmission mechanism comprises an eccentric shifting block which is arranged on the lock core and deviates from the rotation central axis of the lock core, and a shifting groove which is arranged on the lock bolt, and the eccentric shifting block is arranged in the shifting groove to form pushing fit with the lock bolt. Under the structural design, the transmission of the lock cylinder and the lock bolt is realized by utilizing the structural principle of the eccentric wheel, and the lock cylinder has the advantages of simple and compact structure and stable and reliable action.

Preferably, the periphery of the lock cylinder is provided with an annular positioning groove, the rotating shaft is radially provided with a positioning lock pin, and the head of the positioning lock pin extends into the annular positioning groove to form axial limiting and circumferential rotation matching with the lock cylinder. Under the structural design, the lock core is axially limited in the lock core hole cavity of the rotating shaft, and the lock core can rotate in the rotating shaft.

Preferably, the lock base is in a sleeve shape, the rotating shaft is inserted into the lock base, a limiting shaft shoulder is arranged in the middle of the periphery of the rotating shaft, an upper port of the lock base is in limiting fit with the limiting shaft shoulder, a threaded portion is arranged at the bottom of the rotating shaft, the lock tongue plate is positioned and sleeved on the threaded portion and is locked and fixed on the threaded portion through a locking member which is screwed on the threaded portion through threads, and the lock tongue plate is in axial limiting fit with the bottom end of the lock base. Under this structural design, the lock tongue board is installed in the pivot, and the lock tongue board realizes that the axial is spacing to the lock base bottom, and the upper end of lock base is spacing through the spacing shaft shoulder axial of pivot to accomplish the assembly of lock base and pivot, have simple structure compactness and dismouting convenient operation's advantage.

Preferably, the upper end of the lock seat is provided with an annular clamping and mounting flange, the periphery of the lock seat is provided with an external thread positioned below the clamping and mounting flange, and the lock seat is screwed with a locking nut which is matched with the clamping and mounting flange to form a lock seat clamped and fixed on the cabinet body. Under this structural design, the convex centre gripping mounting flange in lock seat upper end constitutes centre gripping fixed mounting on the cabinet door with lock nut cooperation, has the simple compactness of mounting structure, dismouting convenient operation's advantage.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of a cabinet door lock according to an embodiment of the present invention;

fig. 2 is a schematic view of a cabinet door lock according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

fig. 4 is the structural schematic diagram of the two-door lock according to the embodiment of the present invention.

Detailed Description

Referring to fig. 1 ~ 3, the utility model discloses a cabinet door lock, including handle 1, lock seat 2 and pivot 3, pivot 3 is rotated and is fitted on lock seat 2, pivot 3 one end installation handle 1, pivot 3 other end drive is connected with spring bolt 4, spring bolt 4 include lock tongue plate 41 and the gyro wheel 42 that is used for locking the cabinet door, lock tongue plate 41 fixed mounting is driven by pivot 3 on pivot 3 and is swung, gyro wheel 42 is installed in the swing end of lock tongue plate 41, rotate the handle, through the swing of pivot drive lock tongue plate swing, the gyro wheel on the lock tongue plate gets into the cabinet door relevant position, thereby reach the shutting to the cabinet door, through gyro wheel and cabinet door contact lock door, can reduce the frictional force of spring bolt AND door, avoid door and spring bolt friction damage, lock door and unblock operation more smooth and more, and then can reach the cooperation compact type between improvement spring bolt and the lock door, the cabinet door locking is more reliable, can avoid the door untightening to cause the problem that the door rocked, especially on vibrations and motion equipment and facility, handle, spring bolt all install in the pivot and realize the transmission, have simple structure, the stable operation, for the gyro wheel is more reliable, the advantage of the outside of the door has the cone-shaped guide roller, thereby the outside of door contact diameter is equipped with the guide roller 421, thereby the outside the door, thereby the door.

In order to enable the lock to meet the requirement of safety specifications, the handle is usually required to be provided with the lock device so as to avoid unlocking by simply rotating the handle, and the traditional lock core structure is too complex in the occasion with low safety requirement; therefore, the utility model discloses a following lock device design:

the lock further comprises a rotating shaft locking assembly used for locking/unlocking matching between the rotating shaft 3 and the lock base 2, the rotating shaft locking assembly comprises a lock cylinder 5, the rotating shaft 3 is provided with a lock cylinder hole cavity 30, the lock cylinder 5 can be positioned and rotatably matched in the lock cylinder hole cavity 30, one end of the lock cylinder 5 is provided with a tool stress hole 51 for a rotary tool to be stressed to drive the lock cylinder 5 to rotate, and the other end of the lock cylinder 5 is in driving matching with a lock bolt 6 which is rotated through the lock cylinder 5 to form the locking/unlocking rotating shaft 3. The lock core is rotated through the action of a tool and a tool stress hole of the lock core, the lock core is rotated to drive the lock bolt to lock the rotating shaft on the lock seat or unlock the rotating shaft from the lock seat, so that the driving of the lock bolt can be completed through rotating the rotating shaft by the handle, and the actions of opening and locking a door are achieved; in addition, a lock cylinder mounting hole for mounting the lock cylinder is formed in the rotating shaft, the rotating shaft locking assembly is mounted on the rotating shaft, the handle is locked by means of the rotating shaft, and the lock cylinder locking assembly has the advantage of compact structure. In this embodiment, the handle and the rotating shaft are integrally formed.

Wherein the tool force-receiving hole 51 is a cross-recessed counter bore. The lock core can be rotated to unlock by using a common cross screwdriver, and the cross screwdriver is a common simple tool and is relatively balanced in stress. Certainly as the utility model discloses feasible scheme combines current common instrument, and the instrument atress hole can also adopt designs such as a word groove counter bore, perhaps interior hexagonal groove counter bore, perhaps outer hexagonal head.

The rotating shaft 3 is provided with a lock bolt positioning hole 31 along the radial direction, the lock bolt positioning hole 31 penetrates through the lock core cavity 30, the lock bolt 6 is in sliding fit in the lock bolt positioning hole 31, the lock seat 2 is provided with a locking hole 21 corresponding to the lock bolt positioning hole 31, the head 61 of the lock bolt 6 extends into/out of the locking hole 21 to lock/unlock the rotating shaft 3 on the lock seat 2, and a transmission mechanism for converting the rotating motion of the lock core 5 into the axial sliding motion of the lock bolt 6 is matched between the lock core 5 and the lock bolt 6. The lock core is rotated, the lock bolt is driven by the lock core to move axially, the head of the lock bolt extends into the locking hole of the lock seat, so that the rotating shaft and the lock seat are locked, the rotating shaft cannot rotate on the lock seat, namely, the door opening action cannot be realized, the head of the lock bolt exits from the locking hole, the locking of the rotating shaft is released, and the rotating shaft can rotate, so that the door opening action can be realized; the lock bolt realizes the locking and unlocking of the rotating shaft in an axial movement mode, the structure is simple, and the action of the lock bolt is more stable and reliable. Certainly as the feasible scheme of this utility model, the set bar still can adopt other movable modes to form the assembly and accomplish unblock, locking action, if the set bar is the rotation design, nevertheless adopts the slidingtype, and the structure is simpler, the processing assembly of being convenient for.

The transmission mechanism comprises an eccentric shifting block 52 which is arranged on the lock cylinder 5 in a way of offsetting a rotating central axis D of the lock cylinder 5, and a shifting groove 62 which is arranged on the lock bolt 6, wherein the eccentric shifting block 52 is arranged in the shifting groove 62 to form pushing fit with the lock bolt 6. When the lock core rotates, the eccentric shifting block eccentrically moves to shift the lock bolt to axially move, the transmission of the lock core and the lock bolt is realized by utilizing the structural principle of the eccentric wheel, and the lock core has the advantages of simple and compact structure and stable and reliable action.

In this embodiment, the periphery of the lock cylinder 5 is provided with an annular positioning groove 53, the rotating shaft 3 is provided with a positioning lock pin 7 along the radial direction, and the head of the positioning lock pin 7 extends into the annular positioning groove 53 to form axial limiting and circumferential rotation matching with the lock cylinder 5. The lock core is axially limited in the lock core hole cavity of the rotating shaft, and the lock core can rotate in the rotating shaft.

In addition, a roller shaft 43 is integrally formed on the tongue plate 41, the roller 42 is rotatably fitted on the roller shaft 43, and an axial stopper 44 that is in limit fit with the roller shaft 43 to prevent the roller 42 from withdrawing from the roller shaft 43 is disposed at the outer end of the roller shaft 43. The roller shaft and the lock tongue plate are integrally processed and formed, so that the strength is better, the reliability is better, and the dismounting operation of the roller is more convenient. Of course, also possible. Of course, the roller may be mounted by separately processing the roller shaft and the tongue plate and then assembling them, as shown in fig. 4, the roller shaft 43 is riveted and assembled to the tongue plate.

Further, the roller shaft 43 is the step axle form that the diameter is little outward, big-inside, the wheel hole of gyro wheel 42 includes that arrange in proper order along the axial with the first shaft hole section 421 of the big footpath shaft section adaptation of roller shaft 43, with the second shaft hole section 422 of the path shaft section adaptation of roller shaft 43 and let a hole section 423, let a hole section 423 diameter be greater than second hole section 422 diameter, corresponding at first shaft hole section 421 and let a hole section 423 between form bulge loop 424, the spacing jump ring of gyro wheel 42 axle outer end is located to axial locating part 44, spacing jump ring and the spacing cooperation of bulge loop 424, spacing jump ring is located and lets a hole section. The roller wheel is reliably matched with the roller wheel shaft, the convex ring is used for limiting the limiting clamp spring so as to prevent the roller wheel from being separated from the roller wheel shaft, and in addition, the formed abdicating hole section realizes the hidden installation of the limiting clamp spring, so that the structure is more compact and the appearance is more attractive.

The lock seat 2 is in a sleeve shape, the rotating shaft 3 is inserted into the lock seat 2, the middle part of the periphery of the rotating shaft 3 is provided with a limiting shaft shoulder 33, the upper port of the lock seat 2 is in limiting fit with the limiting shaft shoulder 33, a gasket installation step groove 23 is formed in the inner side of the upper port of the lock seat 2, a rubber gasket 24 is arranged in the gasket installation step groove 23, the limiting shaft shoulder 33 abuts against the rubber gasket 24 to form limiting fit with the upper port of the lock seat 2, a screwed portion 34 is arranged at the bottom of the rotating shaft 3, the lock tongue plate 41 is positioned and sleeved on the screwed portion 34 and locked and fixed on the screwed portion 34 through a locking member 35 screwed on the screwed portion 34, and the lock tongue plate 41 is in axial limiting fit with the bottom end of. The lock tongue plate is arranged on the rotating shaft, axial limiting is realized on the bottom end of the lock base by the lock tongue plate, and axial limiting is realized on the upper end of the lock base through the limiting shaft shoulder on the rotating shaft, so that assembly of the lock base and the rotating shaft is completed, and the lock base has the advantages of simple and compact structure and convenience in disassembly and assembly.

The upper end of the lock seat 2 is provided with an annular clamping mounting flange 22, the periphery of the lock seat 2 is provided with an external thread positioned below the clamping mounting flange 22, and the upper thread of the lock seat 2 is screwed with a locking nut 25 which is matched with the clamping mounting flange 22 to form the lock seat 2 to be clamped and fixed on the cabinet body 8. The convex centre gripping mounting flange in lock seat upper end and lock nut cooperation constitute centre gripping fixed mounting on the cabinet door, have the simple compactness of mounting structure, dismouting convenient operation's advantage.

Claims

1. The utility model provides a cabinet door lock, includes handle, lock seat and pivot, and pivot normal running fit is on the lock seat, and pivot one end installation handle, pivot other end drive are connected with spring bolt, its characterized in that: the spring bolt comprises a bolt plate and a roller for locking the cabinet door, the bolt plate is fixedly arranged on the rotating shaft and driven by the rotating shaft to swing, and the roller is arranged at the swinging end of the bolt plate.

2. The cabinet door lock of claim 1, wherein: the lock tongue plate is integrally formed with a roller shaft, the roller is rotationally matched with the roller shaft, and the outer end of the roller shaft is provided with an axial limiting piece which is axially limited and matched with the roller to prevent the roller from withdrawing from the roller shaft.

3. The cabinet door lock of claim 2, wherein: the roller shaft is the step axle form that the diameter is little outward, big in, the wheel hole of gyro wheel includes that arrange in proper order along the axial with the primary shaft hole section of the big footpath axle section adaptation of roller shaft, with the secondary shaft hole section of roller shaft path axle section adaptation and the hole section of stepping down, the hole section diameter of stepping down is greater than the secondary hole section diameter, and is corresponding at the primary shaft hole section and form the bulge loop between the hole section of stepping down, the roller shaft outer end is equipped with spacing jump ring, spacing jump ring and the spacing cooperation of bulge loop, and spacing jump ring is located the hole section of stepping down.

4. The cabinet door lock of claim 1, wherein: the outer circumference of the outer end of the roller is provided with a conical guide surface with a small outside diameter and a large inside diameter.

5. The cabinet door lock of claim 1, wherein: the lock also comprises a rotating shaft locking component used for locking/unlocking matching between the rotating shaft and the lock seat, the rotating shaft locking component comprises a lock cylinder, the rotating shaft is provided with a lock cylinder hole cavity, the lock cylinder can be positioned and rotatably matched in the lock cylinder hole cavity, one end of the lock cylinder is provided with a tool stress hole for a rotary tool to be stressed so as to drive the lock cylinder to rotate, and the other end of the lock cylinder is in driving matching with a lock bolt which is rotated through the lock cylinder to form a locking/unlocking rotating shaft.

6. The cabinet door lock of claim 5, wherein: the tool stress hole is a cross-shaped groove counter bore on the central axis of rotation of the lock cylinder.

7. The cabinet door lock of claim 6, wherein: the rotating shaft is provided with a lock bolt positioning hole along the radial direction, the lock bolt positioning hole penetrates through the cavity of the lock core, the lock bolt is matched in the lock bolt positioning hole in a sliding mode, the lock seat is provided with a locking hole corresponding to the position of the lock bolt positioning hole, the head of the lock bolt extends into/out of the locking hole to lock/unlock the rotating shaft on the lock seat, and a transmission mechanism for converting the rotating motion of the lock core into the axial sliding of the lock bolt is matched between the lock core and the lock bolt.

8. The cabinet door lock of claim 7, wherein: the transmission mechanism comprises an eccentric shifting block which is arranged on the lock core in a manner of offsetting the rotation central axis of the lock core, and a shifting groove which is arranged on the lock bolt, wherein the eccentric shifting block is arranged in the shifting groove to form pushing fit with the lock bolt.

9. A cabinet door lock according to claim 5, 6, 7 or 8, wherein: the periphery of the lock cylinder is provided with an annular positioning groove, the rotating shaft is radially provided with a positioning lock pin, and the head of the positioning lock pin extends into the annular positioning groove to form axial limiting and circumferential rotation matching with the lock cylinder.

10. The cabinet door lock of claim 1, wherein: the lock seat is in a sleeve shape, the rotating shaft is inserted into the lock seat, the middle part of the periphery of the rotating shaft is provided with a limiting shaft shoulder, an upper port of the lock seat is in limiting fit with the limiting shaft shoulder, the bottom of the rotating shaft is provided with a screwed part, the lock tongue plate is positioned and sleeved on the screwed part and is locked and fixed on the screwed part through a locking part screwed on the screwed part through threads, and the lock tongue plate is in axial limiting fit with the bottom end of the lock seat.