Lock capable of observing locking state

Abstract

The utility model discloses a lockset capable of observing a locking state, which comprises a first lock handle, a second lock handle and a shell, the first lock handle and the second lock handle are respectively arranged on two sides of the shell, the first lock handle and the second lock handle can rotate relative to the shell, and the shell is provided with a display window; the first lock handle comprises a first lever handle, a lock cylinder, a ring piece, a top connecting column, a rotation limiting piece and a sleeve. The second lock handle comprises a second handle, a knob and a linkage rod; the lock cylinder, the rotary knob, the ring piece and the rotation limiting piece are all connected to the linkage rod to be jointly linked, the ring piece is provided with an indication identification section, and the indication identification section is exposed out of the display window along with rotation of the linkage rod. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

Technical Field

[0001] The utility model mainly relates to a lock whose locking state can be observed. Background Art

[0002] As a traditional lock, mechanical locks have relatively simple working principles and types. Although new locks such as electronic locks are becoming increasingly popular in modern society, mechanical locks are still widely used in many fields due to their unique advantages, such as high security and low maintenance costs. Existing mechanical door locks generally do not have a status indicator. Users cannot intuitively understand the status of the door lock when leaving, and are prone to forgetting to close the door, which may cause safety hazards. Therefore, it is necessary to develop mechanical locks with status display. Utility Model Content

[0003] In order to solve at least one of the above problems, the present utility model proposes a new structural solution. The present lock capable of observing the locking state adopts the following technical solution:

[0004] A lock capable of observing the locking state, comprising a first lock handle, a second lock handle and a housing, wherein the first lock handle and the second lock handle are respectively arranged on two sides of the housing, the first lock handle and the second lock handle can rotate relative to the housing, and the housing is provided with a display window;

[0005] The first lock handle comprises a first handle, a lock core, a ring plate, a top connection column, a rotation limiting member and a sleeve;

[0006] The second lock handle includes a second handle, a knob, and a linkage rod;

[0007] The lock core, the knob, the ring piece and the rotation-limiting member are all connected to the linkage rod to work together. The ring piece is provided with an indication mark segment, and the indication mark segment is exposed in the display window as the linkage rod rotates.

[0008] Preferably, the sleeve is provided with a first slot, the rotation limiting member is provided with a guide groove, the top connection column is placed in the first slot and the top connection column is connected to the guide groove, and the rotation limiting member rotates with the linkage rod so that the end of the guide groove abuts against the top connection column in the first slot to limit the rotation of the sleeve.

[0009] Preferably, the shell includes a first shell and a second shell, the first lock handle is connected to the first shell, and the second lock handle is connected to the second shell; the first shell and the second shell are both provided with a swing spring, and the first lock handle and the second lock handle are both connected with a snap ring, and the snap ring and the swing spring cooperate to contact the first lock handle and the second lock handle to link.

[0010] Preferably, the snap ring has a snap edge, the second handle is provided with a second snap groove, the snap edge of the snap ring of the second lock handle is connected to the second snap groove, so that the snap ring of the second lock handle rotates with the second handle; the snap edge of the snap ring of the first lock handle is connected to the first snap groove, so that the snap ring of the first lock handle rotates with the sleeve.

[0011] Preferably, the snap ring extends out of the push block, the swing spring has a convex portion, the convex portion is located within the rotation range of the push block, and the snap ring rotates relative to the swing spring to make the push block and the convex portion movably abut against each other, so as to drive the swing spring to deform through the snap ring.

[0012] Preferably, both the first housing and the second housing are provided with a limiting portion, and the limiting portion is movably connected to the push block to limit the rotation position of the swivel ring.

[0013] Preferably, the snap ring is provided with a square hole, and the snap ring of the first lock handle and the snap ring of the second lock handle are connected with a square core bar so that the snap ring of the first lock handle and the snap ring of the second lock handle rotate together, and the square core bar is connected with the square hole.

[0014] Preferably, the square core bar has a through cavity running through it, the linkage rod is connected to the through cavity, and the linkage rod is freely rotatable in the through cavity.

[0015] Compared with the background technology, the utility model has the following beneficial effects:

[0016] The utility model proposes a lock capable of observing the locking state, which comprises a first lock handle, a second lock handle and a housing, wherein the housing is provided with a display window, and by rotating a knob or a lock cylinder, a link rod can be used to drive a ring piece to reveal an indication mark segment in the display window, so that the user can know the current lock state, thereby avoiding potential safety hazards. The product has the advantages of simple structure, compact fit, and reasonable design; therefore, it is a product with superior performance in both technical and economic aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a lock in an observable locking state in a preferred embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a first disassembled state of a lock in which a locking state can be observed in a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a second disassembled state of the lock in a preferred embodiment of the present invention, in which the locked state can be observed;

[0020] Figure 4 This is a schematic diagram of the partial structure of a lock in which the locking state can be observed in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0022] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above" or "above" a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below" or "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0027] The preferred embodiment provided by the utility model is as follows: Figure 1~Figure 4 As shown, a lock device whose locking state can be observed comprises a first lock handle 1, a second lock handle 2 and a housing 3. The first lock handle 1 and the second lock handle 2 are respectively arranged on two sides of the housing 3. The first lock handle 1 and the second lock handle 2 can rotate relative to the housing 3. The housing 3 is provided with a display window 31.

[0028] The first lock handle 1 comprises a first handle 11, a lock core 12, a ring plate 13, a top connection column 14, a rotation limiting member 15 and a sleeve 16. The first handle 11 is provided with an inserting cavity for inserting the sleeve 16, and the lock core 12 is inserted into the inserting cavity and connected with the sleeve 16; the first handle 11 and the sleeve 16 are both provided with connecting holes 18, and the position of the sleeve 16 in the first handle 11 is moved to match the connecting holes 18 of the two, and the first handle 11 and the sleeve 16 can be assembled together by inserting a pin into the connecting holes 18 of the two, so that the first handle 11 and the sleeve 16 can rotate simultaneously; the lock core 12 can rotate independently relative to the first handle 11.

[0029] The second lock handle 2 includes a second handle 21, a knob 22, and a linkage rod 23;

[0030] The lock cylinder 12, the knob 22, the ring piece 13, and the rotation limiting member 15 are all provided with a slot 24 for the linkage rod 23 to pass through. The slot size can be a straight slot or a cross slot corresponding to the size of the linkage rod. The lock cylinder 12, the knob 22, the ring piece 13, and the rotation limiting member 15 are all connected to the linkage rod 23 to work together. The ring piece 13 is provided with an indication mark segment 25, and the indication mark segment 25 is exposed in the display window 31 as the linkage rod 23 rotates. The sleeve 16 is provided with an annular groove 161 and a first clamping groove 162, and the rotation limiting member 15 is provided with a guide groove 151. The top connection column 14 is placed in the first clamping groove 162 and the top connection column 14 is connected to the guide groove 151. As the linkage rod 23 rotates, the rotation limiting member 15 makes the end of the guide groove 151 abut against the top connection column 14 in the first clamping groove 162 to limit the rotation of the sleeve 16. The ring piece 13 is provided with a locking portion 131 , and the slot 24 of the ring piece 13 is provided in the locking portion 131 . The locking portion 131 is connected to the annular groove 161 and rotates along the annular groove 161 along with the first handle 11 . The annular groove 161 is provided to cooperate with the rotation of the ring piece 13 .

[0031] The housing 3 includes a first shell 32 and a second shell 33, and a display window 31 is provided in the first shell 32. Furthermore, the display window 31 and the indicator segment 25 are both arc-shaped, and the positions of the two are corresponding; the indicator segment 25 includes a locking segment 251 and an unlocking segment 252, the locking segment 251 uses red as the marking color, and the unlocking segment 252 uses green as the marking color, the length of the display window 31 is consistent with the arc length of the single segment identification segment, and the lengths of the locking segment 251 and the unlocking segment 252 are equal. The first lock handle 1 is connected to the first shell 32, and the second lock handle 2 is connected to the second shell 33; the first shell 32 and the second shell 33 are both provided with a rotary spring 34, and the first lock handle 1 and the second lock handle 2 are both connected with a snap ring 35, and the snap ring 35 cooperates with the rotary spring 34 to make the first lock handle 1 and the second lock handle 2 linked. The center of both the first housing 32 and the second housing 33 extends a ring column 36 for the spiral spring 34 to be sleeved. The ring column of the first housing cooperates to limit the position of the top connection column, so that the top connection column 14 is kept in the first slot 162. The first housing 32 and the second housing 33 are both provided with a lock column 37. The housing is equipped with a fixing screw 371. The fixing screw 371 is connected with the lock column 37 to lock the first housing 32 and the second housing 33 together; and the fixing screw has a certain length, so that a gap is formed between the first housing 32 and the second housing 33 to adapt to the door body. The snap ring 35 has a clamping edge 38, and the second handle 21 is provided with a second clamping groove 28. The clamping edge 38 of the snap ring 35 of the second lock handle 2 is connected to the second clamping groove 28, so that the snap ring 35 of the second lock handle 2 rotates with the second handle 21; the clamping edge 38 of the snap ring 35 of the first lock handle 1 is connected to the first clamping groove 162, so that the snap ring 35 of the first lock handle 1 rotates with the sleeve 16. The snap ring 35 extends out of the push block 39, and the spiral spring 34 has a convex portion 341, which is located within the rotation range of the push block 39. The snap ring 35 rotates relative to the spiral spring 34, so that the push block 39 and the convex portion 341 are movably abutted, so that the spiral spring 34 is driven to deform through the snap ring 35.

[0032] The first housing 32 and the second housing 33 are both provided with a limiting portion 4, and the limiting portion 4 is movably connected to the push block 39 to limit the rotation position of the snap ring 35. The snap ring 35 is provided with a square hole 41, and the snap ring 35 of the first lock handle 1 and the snap ring 35 of the second lock handle 2 are connected with a square core strip 42 so that the snap ring 35 of the first lock handle 1 and the snap ring 35 of the second lock handle 2 can rotate together, and the square core strip 42 is connected to the square hole 41; the square core strip 42 has a through cavity passing through it, and the linkage rod 23 is connected to the through cavity and the linkage rod 23 can rotate freely in the through cavity. Since the snap rings 35 of both the first lock handle 1 and the second lock handle 2 are connected to the square core strip 42, the rotation of one snap ring 35 will link the other snap ring 35 through the square core strip 42, so that the return spring 34 of one lock handle cooperates with the snap ring 35 to abut and reset, which will drive the other lock handle to reset as well.

[0033] In order to solve the problem that the existing mechanical locks are not provided with a state indicating structure, the utility model proposes a lock device that can observe the locking state, which includes a first lock handle 1, a second lock handle 2 and a housing 3, wherein the housing 3 is provided with a display window 31, and the knob is twisted to drive the rotation limiter 15 to rotate through the linkage rod, so that the end of the guide groove 151 of the rotation limiter 15 rotates to the position of the first clamping groove 162, and the position of the top connection column 14 is limited by the end of the guide groove 151 and the first clamping groove 162, and the first lock handle 1 is locked in stroke. At this time, it is in the locking state, the first lock handle 1 and the second lock handle 2 cannot rotate, and the color of the indicator identification segment 25 displayed in the display window 31 is red. When unlocking, the knob or the lock core 12 is twisted to drive the end of the linkage rod 23 to rotate away from the first clamping groove 162, increase the rotation stroke of the first lock handle 1, and thus reach the unlocking state, at this time, the color of the indicator identification segment 25 displayed in the display window 31 is green, and the first lock handle and the second lock handle can rotate.

[0034] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A lock capable of observing the locking state, characterized in that: It comprises a first lock handle, a second lock handle and a shell, wherein the first lock handle and the second lock handle are respectively arranged on both sides of the shell, and the first lock handle and the second lock handle can rotate relative to the shell, and the shell is provided with a display window; The first lock handle comprises a first handle, a lock core, a ring plate, a top connection column, a rotation limiting member and a sleeve; The second lock handle includes a second handle, a knob, and a linkage rod; The lock core, the knob, the ring piece and the rotation-limiting member are all connected to the linkage rod to work together. The ring piece is provided with an indication mark segment, and the indication mark segment is exposed in the display window as the linkage rod rotates.

2. The lock capable of observing the locking state according to claim 1, characterized in that: The sleeve is provided with a first slot, the rotation limiting member is provided with a guide groove, the top connection column is placed in the first slot and connected to the guide groove, and the rotation limiting member rotates with the linkage rod so that the end of the guide groove abuts against the top connection column in the first slot to limit the rotation of the sleeve.

3. The lock with observable locking status according to claim 1, characterized in that: The shell includes a first shell and a second shell, the first lock handle is connected to the first shell, and the second lock handle is connected to the second shell; the first shell and the second shell are both provided with a swing spring, and the first lock handle and the second lock handle are both connected with a snap ring, and the snap ring and the swing spring cooperate to contact so that the first lock handle and the second lock handle are linked.

4. The lock capable of observing the locking state according to claim 3, characterized in that: The snap ring has a snap edge, the second handle is provided with a second snap groove, the snap edge of the snap ring of the second lock handle is connected to the second snap groove, so that the snap ring of the second lock handle rotates with the second handle; the snap edge of the snap ring of the first lock handle is connected to the first snap groove, so that the snap ring of the first lock handle rotates with the sleeve.

5. The lock capable of observing the locking state according to claim 3, characterized in that: The snap ring extends out of the push block, and the swing spring has a convex portion, which is located within the rotation range of the push block. The snap ring rotates relative to the swing spring to make the push block movably abut against the convex portion, so as to drive the swing spring to deform through the snap ring.

6. The lock capable of observing the locking state according to claim 5, characterized in that: The first shell and the second shell are both provided with a limiting part, and the limiting part is movably connected with the push block to limit the rotation position of the clamping ring.

7. The lock capable of observing the locking state according to claim 3, characterized in that: The snap ring is provided with a square hole, and the snap ring of the first lock handle and the snap ring of the second lock handle are connected with a square core strip so that the snap ring of the first lock handle and the snap ring of the second lock handle rotate together, and the square core strip is connected with the square hole.

8. The lock capable of observing the locking state according to claim 7, characterized in that: The square core bar has a through cavity running through it, the linkage rod is connected to the through cavity, and the linkage rod can rotate freely in the through cavity.

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