Plane lock

Abstract

The utility model relates to a plane lock which comprises a lock base, a handle and a lock cylinder device, a handle groove is formed in the lock base, the tail end of the handle is locked through the lock cylinder device, and the lock cylinder device comprises a lock cylinder assembly arranged at the position, close to the tail end, of the handle and a lock catch part arranged on the lock base and matched with the lock cylinder assembly in a locking / unlocking mode. A handle lifting handle is arranged at the tail end of the handle in a pivoted mode, one end of the handle lifting handle can swing around the pivoted portion so as to be in a closed state buckled on the handle and an open state tilted from the handle, the handle lifting handle is connected with an opening and closing control mechanism, and a lock cylinder of the lock cylinder assembly is an operating end of the opening and closing control mechanism. The lock cylinder is operated to drive the handle lifting handle to be switched between the closed state and the open state, the handle lifting handle is in the open state when the lock cylinder assembly and the lock catch part are in the unlocked state, and the handle lifting handle is in the closed state when the lock cylinder assembly and the lock catch part are in the locked state. The lock has the advantages of being neat and attractive in appearance, good in prying-resistant performance and capable of indicating the lock state.

Description

Technical Field

[0001] The utility model relates to a lock. Background Art

[0002] The flat lock includes a lock base, and a handle groove is provided on the lock base. One end of the handle can be pivotally installed in the handle groove, and the other end of the handle can be buckled into the handle groove and popped out from the handle groove. The handle is equipped with an elastic mechanism to drive the handle to automatically pop out from the handle groove. On some locks, a handle structure is usually provided at the end of the handle, which is used to manually pull the handle out of the handle groove by relying on the handle structure when the handle fails to pop up (such as in an icy environment). However, the existing handle structure adopts a tail portion extending from the tail end of the handle to the outer edge of the lock base, and the bottom side of the tail portion adopts a concave design (such as disclosed in patent documents such as CN202020999190.3 and CN202021189380.5). When the handle fails to pop up, the tail portion can be pinched to pull the handle. However, the existing design adopts an extended handle tail design, which is not beautiful in appearance. In addition, since the tail end of the handle has a tail that extends to the edge of the lock base, the concave tail also provides a good insertion space for tools, thereby prying the handle, resulting in insufficient anti-pry performance of the lock. In addition, the existing lock cannot provide an intuitive indication of the locked state. When the operator completes maintenance on the equipment, it is very likely that he will leave in an unlocked state. Summary of the invention

[0003] In order to overcome the defects of the prior art, the utility model provides a flat lock, which makes the lock look neat and beautiful, improves the anti-pry performance of the lock and forms a lock status indication function.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The lock core is operated to drive the handle handle to switch between the closed state and the open state, and the handle handle is in the open state when the lock core assembly and the lock core assembly are locked.

[0006] Preferably, the opening and closing control mechanism includes an elastic element and a handle locking member. The handle locking member is movably arranged on the handle and is linked with the lock core. A locking protrusion is provided at the pivoting part of the handle grip. The handle locking member is in abutting cooperation with the locking protrusion. The handle locking member abuts against the locking protrusion on the handle grip to drive the handle grip to rotate from the open state to the closed state. And the locking protrusion on the handle grip is restricted in the closed state under the pressing of the handle locking member, and the elastic element stores energy under the driving of the handle grip. The handle grip swings from the closed state to the open state under the driving force of the stored energy of the elastic element.

[0007] Preferably, the pivoting direction of the handle grip corresponds to the length direction of the handle, and one end of the handle grip facing the tail end direction of the handle is a lifting end that can be lifted from the handle.

[0008] Preferably, the pivoting part of the handle grip includes pivot seat bodies distributed on both lateral sides of the handle grip in the transverse direction. A positioning interval is formed between the two pivot seat bodies at intervals. The pivot seat bodies are provided with locking protrusions. A handle mounting part is provided on the top surface of the handle. The handle mounting part is inserted into the positioning interval. The pivot seat bodies and the handle mounting part are connected by a pivot shaft. The elastic element is a torsion spring sleeved on the pivot shaft.

[0009] Preferably, the handle locking member is in linear sliding fit on the lock base. The handle locking member slides along the direction corresponding to the pivoting direction of the handle grip. The handle locking member includes an L-shaped main body that is in positioning sliding fit on the handle. The L-shaped main body has a lock core connecting block corresponding to the bottom end of the lock core. A longitudinal driving block extends along the height direction of the lock core on the lock core connecting block. A pushing part for pushing against the locking protrusion is provided at the top end of the longitudinal driving block. An eccentric driving part that rotates with the lock core is provided at the bottom end of the lock core. The eccentric driving part is connected to the lock core connecting block. The handle locking member reciprocates under the driving of the eccentric driving part.

[0010] Preferably, a lock tongue extends from the lock core connecting block, and the lock tongue is in locking / unlocking cooperation with the locking part.

[0011] Preferably, positioning wing plates are provided on both lateral sides of the pushing part, and positioning grooves for positioning sliding fit with the positioning wing plates are provided on the handle.

[0012] Preferably, a handle flexible locking assembly is installed on the longitudinal driving block. The handle flexible locking assembly includes a lock pin and a lock pin spring. The lock pin has a spherical locking head. A locking concave hole for locking / unlocking cooperation with the spherical locking head is provided in the handle groove. The locking / unlocking of the spherical locking head and the locking concave hole is realized by operating the handle.

[0013] Preferably, when the handle is inserted into the handle groove, the handle grip in the closed state at least abuts against the bottom surface on the handle and is placed in the handle groove along with the handle. The edge of the handle grip corresponding to the inner wall of the handle groove is close to the inner peripheral side wall of the handle groove.

[0014] Preferably, a handle lifting assembly recess is provided on the top surface of the handle, and the handle lifting handle is installed in the handle lifting assembly recess.

[0015] For the flat lock of the present utility model, a rotatable handle lifting handle is installed at the tail end of the handle. After the lock is unlocked through the lock core, the handle lifting handle tilts at a certain angle from the handle. When a failure occurs in the handle springing up or in other cases where it does not spring up, the handle lifting handle can be pinched to pull the handle and pull the handle out of the handle groove; the handle lifting handle is pivotally mounted at the tail end of the handle. After the handle is inserted into the handle groove and locked through the lock core, the handle lifting handle is buckled on the handle, making the lock more tidy and beautiful in the locked state; in addition, the tail end of the handle no longer has a part that extends out of the handle groove and reaches the edge of the lock seat body, improving the anti-prying performance of the lock; during the locking and unlocking operations of the lock core, the state of the locking handle changes accordingly, so that the handle lifting handle can indicate the state of the lock, ensuring that the operator can more intuitively grasp the state of the lock.

[0016] The present utility model will be further described below with reference to the accompanying drawings. Description of the Drawings

[0017] Figure 1 is the locking state diagram of the flat lock of the present utility model;

[0018] Figure 2 is Figure 1 the structural schematic diagram in the

[0019] Figure 3 is the unlocking state diagram of the flat lock of the present utility model;

[0020] Figure 4 is Figure 3 the structural schematic diagram in the

[0021] Figure 5 is the structural exploded view of the tail end part of the handle of the present utility model;

[0022] Figure 6 is the structural schematic diagram of the tail end part of the handle of the present utility model;

[0023] Figure 7 is the transmission path diagram of the handle lifting handle in the open state of the present utility model;

[0024] Figure 8 is the transmission path diagram of the handle lifting handle in the closed state of the present utility model.

[0025] Lock base 1, handle groove 11, inner side wall 111, locking recess 112, handle 2, tail end 21, handle assembly recess 211, handle mounting portion 212, stop surface 2121, positioning hole 23, positioning groove 24, steel bolt assembly 3, lock core assembly 41, lock core 411, lock tongue 412, eccentric drive portion 413, lock buckle portion 42, handle 5, lifting end 50, edge 51, locking protrusion 52, pivot seat body 53, positioning interval 54, elastic element 61, handle locking piece 62, lock core connecting block 621, dial hole 6211, longitudinal drive block 622, push portion 623, positioning wing plate 6231, lock pin 71, spherical locking head 711, lock pin spring 72 DETAILED DESCRIPTION

[0026] See attached Figures 1 - 8 The utility model discloses a flat lock, including a lock base 1, a handle 2 and a lock core device. The lock base 1 is provided with a handle groove 11 for accommodating the handle 2. One end of the handle 2 is pivotally mounted in the handle groove 11 of the lock base 1 through a steel bolt assembly 3. The other end of the handle 2 is a tail end 21 that can be buckled into / popped out of the handle groove 11. The tail end 21 of the handle 2 is locked through the lock core device. The lock core device includes a lock core assembly 41 arranged at a position close to the tail end 21 of the handle 2, and a lock catch portion 42 arranged on the lock base 1 and locked / unlocked with the lock core assembly 41. The lock catch portion 42 is a boss arranged on the lock base 1. The lock core assembly 41 includes a lock core 411 and a lock tongue 412. The rotation of the lock core 411 The locking tongue 412 is driven to extend into and out of the boss position to achieve locking and unlocking; there are two designs of existing locks, one of which is that the handle adopts the tail end to extend to form a handle handle, which has insufficient anti-pry performance; the other is a handle without a handle design, which has the disadvantage of being inconvenient to open the handle when the handle cannot be ejected; in view of the shortcomings of the locks on the market, the following optimized design is adopted, which not only solves the problem of handle opening operation, but also solves the problem that the lock state cannot be intuitively visualized, resulting in the problem of false locking (not locked in place) of the lock, specifically: the handle handle 5 is pivotally provided at the tail end of the handle 2, and one end of the handle handle 5 can swing around the pivotal part to present a closed state (such as being buckled on the handle 2) Figure 1 , Figure 2 and Figure 8 ) and the open state tilted from the handle 2 (as shown Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown in FIG. 1 ), the handle 5 is connected to an opening and closing control mechanism, and the lock core 411 of the lock core assembly 41 is an operating end of the opening and closing control mechanism. The lock core 411 is operated to drive the handle 5 to switch between a closed state and an open state, and when the lock core assembly 41 and the lock buckle 42 are in an unlocked state, the handle 5 is in an open state (see FIG. 1 ). Figure 4), when the lock core assembly 41 and the lock catch part 42 are in the locked state, the handle grip 5 is in the closed state (see Figure 2 ). In this way, when the lock core is rotated to unlock the handle, the end of the handle grip controlled by the lock core tilts up to be in the open state, and the popping angle can be set as required. In this way, when the handle fails to pop up from the handle groove, the handle grip 5 can be pinched to pull the handle 2 out of the handle groove 11, and at the same time, the handle grip realizes the indication of the unlocked state of the handle; when the lock core is rotated to lock the handle, the end of the handle grip controlled by the lock core buckles on the handle to be in the closed state, realizing the hidden design of the handle grip on the handle instead of the design with the tail end extending and protruding. The lock is neat and beautiful, and at the same time, the handle grip realizes the indication of the locked state of the handle. This design achieves better effects for locks with a temporary locking function, that is, the lock is provided with a temporary lock structure, such as the locks described in the application number CN202310437653.5, or CN201920571990.2, etc. To further improve the anti-prying performance, when the handle 2 is buckled into the handle groove 11, the handle grip 5 in the closed state at least abuts against the bottom surface on the handle 2 and follows the handle 2 into the handle groove 11, and the edge 51 of the handle grip 5 corresponding to the inner wall of the handle groove 11 is close to the inner peripheral side wall 111 of the handle groove 11. In this way, the mating surface of the handle grip is placed in the handle groove, reducing the insertion of tools under the handle grip for prying operations, thereby improving the anti-prying performance; to make the handle grip buckle onto the handle after installation and make the lock more neat and beautiful, achieving a better hidden design of the handle grip, a handle grip assembly recess 211 is provided on the top surface of the handle 2, and the handle grip 5 is installed in the handle grip assembly recess 211.

[0027] As an implementation manner of the present invention, the opening and closing control mechanism includes an elastic element 61 and a handle lock 62. The handle lock 62 is movably arranged on the handle 2 and is linked with the lock core 411. A lock projection 52 is provided at the pivoting part of the handle grip 5. The handle lock 62 is in a pushing fit with the lock projection 52. The handle lock 62 pushes the lock projection 52 on the handle grip 5 to drive the handle grip 5 to rotate from the open state to the closed state (such as Figure 7 the state to Figure 8 the state), and the lock projection 52 on the handle grip 5 is restricted in the closed state under the pressing of the handle lock 62 (see Figure 8 ), and the elastic element 61 is energized under the drive of the handle grip 5. The handle grip 5 swings from the closed state to the open state under the driving force of the stored energy of the elastic element 61 (such as Figure 8 the state to Figure 7In the process of locking the lock core, the handle locking member 62 presses the locking protrusion 52 on the handle 5, and the handle 5 is pressed and rotated, and the handle 5 overcomes the elastic force of the elastic element 61 until it is in the closed state. In the closed state, the locking protrusion 52 on the handle 5 is stopped by the pressing of the handle locking member 62, that is, the lock core 411 reliably locks the handle 5, and the handle cannot be easily opened. When the lock core rotates to the unlocked state, the handle 5 is tilted and opened to a certain angle under the drive of the stored energy elastic force before the elastic element 61, so that the linkage between the handle 5 and the lock core 411 is simpler and more reliable; of course, under the enlightenment of the utility model, it is possible to realize the rotation of the lock core to control the swing of the handle. The opening and closing control mechanism may also adopt other structural designs, such as a traction arm hinged to the lock core and the handle handle, one end of the traction plate is eccentrically hinged to the lock core, and the other end of the traction arm is hinged to the handle handle; or the handle handle cooperates with an elastic element, the storage capacity of the elastic element is used to drive the handle handle to close, the lock core is provided with a cam, the cam pushes a sliding push plate, the handle handle is provided with a push portion for pushing, the sliding push plate pushes the push portion, so that the handle handle swings to an open state; or the lock core is provided with a drive sleeve that rotates with the lock core, the drive sleeve has a spiral drive groove arranged along the height direction of the lock core, and the handle handle is provided with a toggle finger inserted into the spiral drive groove, so that the handle handle swings under the guidance of the spiral drive groove; etc. However, under the design of the opening and closing control mechanism of the utility model, it has the advantages of simple structure, easy installation and arrangement, and reliable operation of the handle handle.

[0028] The handle 5 is arranged along the length direction of the handle 2. Specifically, the pivot direction of the handle 5 corresponds to the length direction of the handle 2, and one end of the handle 5 facing the tail end 21 of the handle 2 is a lifting end 50 that can be lifted from the handle 2. In this way, the installation and arrangement of the handle is more convenient, and its operation is also more convenient.

[0029] Among them, the elastic element 61 preferably adopts a torsion spring. Of course, the elastic element can also be in other forms, such as a helical spring. Since the handle grip is pivotable and the installation space of the handle is small, the torsion spring can be more adaptively installed. The pivoting part of the handle grip 5 includes pivot seat bodies 53 distributed on both lateral sides of the handle grip 5 in the transverse direction. A positioning interval 54 is formed at an interval between the two pivot seat bodies 53. A locking projection 52 is provided on the pivot seat body 53. A grip mounting portion 212 is provided on the top surface of the handle 2. The grip mounting portion 212 is inserted into the positioning interval 54. The pivot seat body 53 and the grip mounting portion are connected by a pivot shaft. The elastic element 61 is a torsion spring sleeved on the pivot shaft. Under this design, two locking projections 52 located on both lateral sides of the handle 2 are formed on the handle grip 5, and the open state of the handle grip is reliably defined. The limit position of the handle grip in the open state is defined by forming a stop surface 2121 on the handle 2. The pivot seat body 53 on the handle grip 5 is in stop cooperation with the stop surface 2121, which is convenient for reliably stopping and defining the handle grip, and ensuring that the handle lifting operation has a reliable support point. Of course, the position limit of the handle grip in the open state can also rely on the stop of the grip locking member, but when the grip locking member is stressed, it will cause certain damage to it; or use the locking projection for position limitation, so that the locking projection causes certain damage to it.

[0030] Furthermore, the grip locking member 62 is in linear sliding fit on the lock base 1. The grip locking member 62 slides along the direction corresponding to the pivoting direction of the handle grip 5. The grip locking member 62 includes an L-shaped main body that is in positioning sliding fit on the handle 2. The L-shaped main body has a lock core connection block 621 corresponding to the bottom end of the lock core 411. A longitudinal driving block 622 extends along the height direction X of the lock core 411 on the lock core connection block 621. A pushing portion 623 for pushing the locking projection 52 is provided at the top end of the longitudinal driving block 622. An eccentric driving portion 413 that rotates with the lock core 411 is provided at the bottom end of the lock core 411. The eccentric driving portion 413 is connected to the lock core connection block 621. The grip locking member 62 reciprocates under the drive of the eccentric driving portion 413. A positioning hole cavity 23 is provided on the handle 2. The lock core connection block 621 is inserted into the positioning hole cavity 23. A dial hole 6211 is provided on the lock core connection block 621. The eccentric driving portion 413 is inserted into the dial hole 6211. When the lock core rotates, the grip locking member is driven to slide by the eccentric driving portion. The pushing portion on the grip locking member pushes the locking projection on the handle grip, so as to push and swing the handle grip to the locked state, or the pushing portion 623 on the grip locking member retreats, and the handle grip swings to the open state under the driving force of the elastic element; the grip locking member realizes the transmission connection from the bottom of the lock core to the position near the top surface of the handle, with a simple and compact structure and simple and easy structural adjustment. Of course, as a feasible solution of the present invention, the grip locking member can also adopt a rotating pressing member that rotates with the lock core and has a helical surface extending along the height direction of the lock core, and the locking projection is inserted below the helical surface for the helical surface to press; etc. designs.

[0031] Since the connection position of the handle locking member and the lock core is located at the bottom of the lock core, therefore, a lock tongue 412 can extend from the lock core connection block 621, and the lock tongue 412 is in locking / unlocking cooperation with the lock catch portion 42. That is, the handle locking member and the lock tongue can be arranged more simply in one piece, and the structure is simple and compact.

[0032] To make the sliding of the handle locking member more reliable, positioning wing plates 6231 are provided on both lateral sides of the pushing portion 623, and the handle 2 has a positioning groove 24 that is in positioning sliding cooperation with the positioning wing plates 6231, and the positioning wing pieces 6231 are inserted into the positioning groove 24.

[0033] Since the handle has a handle lifting design, it can realize a more simple and convenient flexible locking structure optimization design for the lock. Specifically: a handle flexible locking component is installed on the longitudinal driving block 622. The handle flexible locking component includes a lock pin 71 and a lock pin spring 72. The lock pin 71 is slidably fitted on the longitudinal driving block 622. A pin hole is provided on the longitudinal driving block 622, and the lock pin 71 is restricted to slide in the pin hole. The lock pin 71 has a spherical locking head 711. Driven by the lock pin spring 72, the spherical locking head 711 extends out of the pin hole. A locking concave hole 112 that is in locking / unlocking cooperation with the spherical locking head 711 is provided in the handle groove 11. The locking / unlocking of the spherical locking head 711 and the locking concave hole 112 is achieved by operating the handle 2. That is, during the process of buckling the handle 2 into the handle groove 11, the spherical locking head 711 is pressed. After the handle 2 is buckled into the handle groove 11 in place, the spherical locking head 711 of the lock pin 71 is snapped into the locking concave hole 112 to achieve the temporary locking of the handle; by pulling the handle 2, the spherical locking head 711 is pressed to withdraw from the locking concave hole 112 to complete the unlocking of the handle. The operation is simple and convenient; and the overall structure is simple. The corresponding temporary locking and unlocking operations are completed by means of the movement of the handle. The operation is simple and convenient; there is no need to specially design an operation key, which makes the appearance of the lock beautiful and tidy and also reduces the cost. Moreover, due to the handle lifting design, visually, the handle lifting can provide the operator with the recognition of whether the lock is truly locked or temporarily flexibly locked. Because if it is flexibly locked, the lifting handle is popped up, and for true locking, the lifting handle is closed flat. If it is flexibly locked, then any person can open the lock, which will also pose a safety hazard.

Claims

1. A planar lock, comprising a lock base, a handle and a lock core device. A handle groove for accommodating the handle is provided on the lock base. One end of the handle is pivotally mounted in the handle groove of the lock base, and the other end of the handle is a tail end that can be inserted into / sprung out of the handle groove. The tail end of the handle is locked by the lock core device. The lock core device includes a lock core assembly disposed at a position of the handle near the tail end, and a lock catch portion provided on the lock base and in locking / unlocking cooperation with the lock core assembly. It is characterized in that: A handle handle is pivotally provided at the end of the handle. One end of the handle handle can swing around the pivot part to present a closed state buckled on the handle and an open state lifted from the handle. The handle handle is connected with an opening and closing control mechanism. The lock core of the lock core assembly is the operating end of the opening and closing control mechanism. The lock core is operated to drive the handle handle to switch between the closed state and the open state. When the lock core assembly and the lock catch part are in the unlocked state, the handle handle is in the open state. When the lock core assembly and the lock catch part are in the locked state, the handle handle is in the closed state.

2. The planar lock according to claim 1, wherein: The opening and closing control mechanism includes an elastic element and a handle locking part. The handle locking part is movably arranged on the handle and is linked with the lock core. A locking protrusion is arranged on the pivoting part of the handle handle. The handle locking part is in a pushing fit with the locking protrusion. The handle locking part pushes the locking protrusion on the handle handle to drive the handle handle to rotate from the open state to the closed state. And the locking protrusion on the handle handle is restricted in the closed state under the pressing of the handle locking part, and the elastic element stores energy under the driving of the handle handle. The handle handle swings from the closed state to the open state under the driving of the stored energy of the elastic element.

3. The planar lock according to claim 2, wherein: The pivoting direction of the handle handle corresponds to the length direction of the handle, and one end of the handle handle facing the end of the handle is the lifting end that can be lifted from the handle.

4. The planar lock according to claim 3, wherein: The pivoting part of the handle handle includes pivot seat bodies distributed on the transverse two sides of the handle handle. A positioning interval is formed between the two pivot seat bodies at intervals. The pivot seat body is provided with a locking protrusion. The top surface of the handle is provided with a handle mounting part. The handle mounting part is inserted into the positioning interval. The pivot seat body and the handle mounting part are connected by a pivot shaft. The elastic element is a torsion spring sleeved on the pivot shaft.

5. The planar lock according to claim 3, wherein: The handle locking part is in a linear sliding fit with the lock base. The handle locking part slides along the direction corresponding to the pivoting direction of the handle handle. The handle locking part includes an L-shaped main body that is in a positioning sliding fit with the handle. The L-shaped main body has a lock core connecting block corresponding to the bottom end of the lock core. A longitudinal driving block extends along the height direction of the lock core on the lock core connecting block. A pushing part for pushing the locking protrusion is arranged at the top end of the longitudinal driving block. An eccentric driving part that rotates with the lock core is arranged at the bottom end of the lock core. The eccentric driving part is connected to the lock core connecting block. The handle locking part reciprocates under the driving of the eccentric driving part.

6. The planar lock according to claim 5, wherein: The lock core connecting block extends with a lock tongue. The lock tongue is in a locking / unlocking fit with the lock catch part.

7. The planar lock according to claim 5, characterized in that: Positioning wing plates are arranged on the two transverse sides of the pushing part. The handle has positioning grooves that are in a positioning sliding fit with the positioning wing plates.

8. The planar lock according to claim 5, characterized in that: A handle flexible locking component is installed on the longitudinal driving block. The handle flexible locking component includes a lock pin and a lock pin spring. The lock pin has a spherical locking head. A locking concave hole that is in a locking / unlocking fit with the spherical locking head is arranged in the handle groove. The locking / unlocking of the spherical locking head and the locking concave hole is realized by operating the handle.

9. The planar lock according to claim 1, wherein: When the handle is buckled into the handle groove, the handle handle in the closed state at least abuts against the bottom surface on the handle and is placed into the handle groove along with the handle. The edge of the handle handle corresponding to the inner wall of the handle groove is close to the inner peripheral side wall of the handle groove.

10. The planar lock according to claim 9, characterized in that: The top surface of the handle is provided with a handle assembly recess. The handle handle is installed in the handle assembly recess.

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