Lock body structure and door lock
By canceling the traditional anti-lock knob, using the combination of internal pivot and lock block, the anti-lock and unlocking functions of the door lock are realized, solving the problems of complex connection structure and poor stability of the existing door lock, and improving the stability and use of the lock body reliability.
Patent Information
- Application Number
- CN202421066778.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The connection structure between the anti-lock knob and the handle in the existing door lock is complex and has poor stability, which is prone to misalignment failures, affecting the anti-lock function.
Design a lock body structure, cancel the traditional anti-lock knob, and use the coordination of the inner tick and the lock block to realize the anti-locking and unlocking functions when the inner tick is rotated in the forward/reverse direction.
The internal structure of the lock body is streamlined, the operation stability is improved, the lock body is operated stably for a long time, and the problem of anti-locking is avoided by mistake.
Smart Images
Figure CN222457078U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, and in particular to a lock body structure and a door lock. Background Art
[0002] A door lock is usually provided with an anti-lock knob. When the door leaf is closed, the anti-lock knob is turned in a preset direction, and the rotation of the door handle is restricted, that is, it is in an anti-lock state. However, the connection structure between the anti-lock knob and the handle in the existing door lock is relatively complex and has poor stability. When in use, the connection structure is prone to misalignment and other faults, affecting the anti-lock function. In addition, for some locks, such as locks with a single magnetic lock tongue, or locks with multiple lock tongues with an anti-lock lock tongue, when in use, if the door leaf is in an open state, the lock tongue related to the anti-lock function will usually retract into the inside of the lock. At this time, if someone mistakenly turns the anti-lock knob, the door handle will not be able to rotate, thereby affecting the normal use of the door lock. Utility Model Content
[0003] The utility model provides a lock body structure and a door lock to at least solve one of the above technical problems.
[0004] In order to achieve the above-mentioned purpose, on the one hand, the utility model provides a lock body structure, including: a shell; a lock tongue slider, which is synchronously slidably arranged in the shell with the lock tongue, and an unlocking part is arranged on the side; an inner peach, which is rotatably arranged in the shell, and a first protrusion and a second protrusion are formed on the outer periphery; an outer peach, which is coaxially rotatable with the inner peach and is arranged in the shell, and a fourth protrusion is formed on the outer periphery; a locking block, which is slidably arranged in the shell, and a reverse locking part is formed on one side; wherein the unlocking part is arranged on the path of the first protrusion and the fourth protrusion rotating along the first direction, and the reverse locking part is arranged on the path of the second protrusion rotating along the second direction; when the second protrusion rotates in the second direction, it abuts against the reverse locking part to drive the locking block to the side of the outer peach and limit the rotation of the outer peach.
[0005] Preferably, a third protrusion is formed on the outer periphery of the inner shifting disk, and the anti-locking portion is arranged on a path where the third protrusion rotates along the first direction.
[0006] Preferably, a slope opposite to the second protrusion is formed on one side of the anti-locking portion, and a slope opposite to the third protrusion is formed on the other side of the anti-locking portion.
[0007] Preferably, a groove for the second protrusion to enter is formed on one side of the anti-locking portion, and a groove for the third protrusion to enter is formed on the other side of the anti-locking portion.
[0008] Preferably, a limiting portion is formed on the locking tongue slider; a fifth protrusion is formed on the outer periphery of the inner shifting peach; wherein when the locking tongue slides into the shell, the limiting portion abuts against the fifth protrusion to limit the rotation of the inner shifting peach along the second direction.
[0009] Preferably, it also includes: an unlocking tooth, which is coaxially rotatably arranged between the inner and outer shifting peaches, with an unlocking groove formed at the axis, and one side is meshed and connected with the locking block; wherein the outer shifting peach is provided with a through hole opposite to the unlocking groove.
[0010] Preferably, it further comprises: a return spring, which is arranged in the housing and applies a force toward the unlocking side to the lock tongue slider.
[0011] Preferably, the side wall of the shell is formed with a first locking position and a second locking position; a limiting spring and a limiting ball are provided in the locking block, and the limiting spring applies a force toward the side wall of the shell to the limiting ball, wherein when the lock is not reversed, the limiting ball is against the first locking position, and when the lock is reversed, the limiting ball is against the second locking position.
[0012] Preferably, the first clamping position and the second clamping position are both provided on two opposite side walls of the shell; and the limiting balls are both provided on two sides of the locking block.
[0013] Preferably, a guide groove having the same direction as the sliding direction of the locking block is formed between the first locking position and the second locking position, and a width of the guide groove is smaller than a width of the first locking position and the second locking position.
[0014] In order to achieve the above-mentioned purpose, on the other hand, the utility model provides a door lock, including: the lock body structure as described above; an inner handle, one end of which passes through the shell and is connected to the inner latch; and an outer handle, one end of which passes through the shell and is connected to the outer latch.
[0015] According to the above description and practice, the lock body structure of the utility model cancels the anti-locking knob in the traditional door lock, and directly uses the cooperation of the inner peach and the locking block to realize the anti-locking and unlocking functions when the inner peach is rotated forward / reversely. The structure inside the lock body is simplified, the stability of the lock body during operation is improved, and the long-term stable operation of the lock body structure is ensured. In addition, the cooperation of the lock tongue slider and the fifth protrusion on the inner peach can avoid the situation of misoperation and anti-locking in the unlocked state of the lock body structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The figure is a schematic diagram of the internal structure of the lock body structure in an unlocked state involved in one embodiment of the utility model.
[0017] Figure 2The figure is a schematic diagram of the internal structure of the lock body structure involved in one embodiment of the present utility model when it is locked and not reversed.
[0018] Figure 3 The figure is a schematic diagram of the internal structure of the lock body structure involved in one embodiment of the present utility model during the anti-locking process.
[0019] Figure 4 The figure is a schematic diagram of the internal structure of the lock body structure involved in one embodiment of the present utility model when it is in the reverse locked state.
[0020] Figure 5 Schematic diagram of the internal structure of the lock body structure in the unlocking process in one embodiment of the utility model
[0021] Figure 6 It is a schematic diagram of a partial exploded structure of a lock body structure involved in an embodiment of the utility model.
[0022] The reference numerals in the figure are:
[0023] 11. Housing 12. Lock tongue 13. Lock tongue slider
[0024] 14. Locking block 15. Inner peach 16. Outer peach
[0025] 17. Unlocking tooth 18. Unlocking groove 19. Lock tongue buckle box
[0026] 21, first bump 22, second bump 23, third bump
[0027] 24, fourth protrusion 25, fifth protrusion 31, return spring
[0028] 32, limit spring 33, limit ball 41, first position
[0029] 42, second latching position 43, guide groove 131, unlocking portion
[0030] 132, limiting part 141, anti-locking part 142, rack DETAILED DESCRIPTION
[0031] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0032] In addition, the accompanying drawings are only schematic diagrams of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated descriptions will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as marks, and are not restrictions on the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0033] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0034] In this embodiment, a lock body structure is disclosed. Please refer to Figures 1 to 6 The lock body structure includes: a housing 11, a lock tongue slider 13, an inner nut 15, an outer nut 16 and a locking block 14. The housing 11 can be formed by buckling two parts, and a space for accommodating other components is formed in the middle. Only one half shell structure of the housing 11 is shown in each figure to show its internal structure. A lock tongue hole is provided on the side of the housing 11 for the lock tongue 12 to extend and retract to achieve unlocking and locking.
[0035] The lock tongue slider 13 is slidably disposed in the housing 11, one end of which is connected to the lock tongue 12 and slides synchronously with the lock tongue 12, and an unlocking portion 131 is formed on the side of the lock tongue slider 13. The sliding assembly between the lock tongue slider 13 and the housing 11 and the sliding assembly between other structures in the following text can be realized by using structures such as slide grooves, slide rails, and slide rods in the prior art, and the details are not repeated. In this embodiment, the lock tongue 12 is a magnetic tongue, which can be attracted by the magnet in the lock tongue buckle box 19 when it is opposite to the lock tongue buckle box 19, and automatically moves to the lock tongue buckle box 19 to achieve locking.
[0036] The inner and outer handles 15 and 16 are coaxially rotatably arranged in the housing 11, and can be connected to the handle of the door when in use, and the user can rotate the two handle handles through the handle. The inner and outer handles 15 and 16 will face the inner and outer sides of the door leaf respectively when actually installed, and are respectively connected to the inner handle and the outer handle, and the user can rotate one of the handle handles inside or outside the door.
[0037] The outer periphery of the inner peach 15 is formed with a first protrusion 21, a second protrusion 22 and a third protrusion 23 along the circumferential direction, wherein the first protrusion 21 is opposite to the unlocking portion 131. When the inner peach 15 rotates, the first protrusion 21 can abut against the unlocking portion 131, thereby driving the lock tongue slider 13 to slide. The outer periphery of the outer peach 16 is formed with a fourth protrusion 24 opposite to the unlocking wave. When the outer peach 16 rotates, the fourth protrusion 24 can abut against the unlocking portion 131, thereby driving the lock tongue slider 13 to slide.
[0038] The locking block 14 is slidably disposed in the housing 11, and a counter-locking portion 141 is formed on one side thereof and is located between the second protrusion 22 and the third protrusion 23. When the inner shifter 15 rotates, the second protrusion 22 and the third protrusion 23 abut against two different side surfaces of the counter-locking portion 141, which can drive the locking block 14 to slide in different directions.
[0039] For details, please refer to Figures 1 to 5 The unlocking portion 131 is arranged on the path of the first protrusion 21 and the fourth protrusion 24 rotating along the first direction; the anti-locking portion 141 is arranged on the path of the second protrusion 22 rotating along the second direction, and on the path of the third protrusion 23 rotating along the first direction. The first direction refers to the clockwise direction in the drawings, and the second direction refers to the counterclockwise direction in the drawings.
[0040] Figure 1 The lock body structure is in an unlocked state, wherein the lock tongue 12 is retracted into the housing 11, and the lock tongue slider 13 slides to the right side in the housing 11. Figure 2 The lock body structure is in the locked state and not reversely locked. At this time, the unlocking portion 131 is opposite to the first protrusion 21 and the fourth protrusion 24. If the inner plunger 15 is rotated clockwise, the first protrusion 21 abuts against the unlocking portion 131 and drives the lock tongue slider 13 to slide rightward, and the lock tongue 12 is moved into the housing 11, and the lock is unlocked; if the outer plunger 16 is rotated clockwise, the fourth protrusion 24 abuts against the unlocking portion 131 and drives the lock tongue slider 13 to slide rightward, and the lock tongue 12 is moved into the housing 11, and the lock is unlocked as well.
[0041] Figure 3 and Figure 4 The figure shows the anti-locking process of the lock body structure and the internal structure after anti-locking. Figure 2 The locked state shown in . Figure 3As shown in the figure, the inner peach 15 is rotated counterclockwise, and the second protrusion 22 abuts against the left side of the anti-locking portion 141, driving the locking block 14 to slide to the right side to the side of the outer peach 16, and limiting the rotation of the outer peach 16, so as to achieve Figure 4 It should be noted that the locking block 14 restricts the rotation of the outer peach 16 by means of surface contact. For example, in this embodiment, Figure 6 As shown, the upper side of locking block 14 and the lower side of outer peach 16 are both planes, and after the two are abutted together, outer peach 16 just can not rotate. Only when locking block 14 leaves the side of outer peach 16, the rotation restriction of outer peach 16 can be released. In other embodiments, the partial structure of locking block 14 can also be inserted into the partial area of outer peach 16, which can limit the rotation of outer peach 16 equally. In other words, as long as there is a connection between locking block 14 and outer peach 16 that is not rotated along the axial direction of outer peach 16, the rotation of outer peach 16 can be limited.
[0042] Figure 5 The process of realizing quick lock and unlock (unlocking while releasing the anti-lock) in the anti-lock state is shown. Figure 4 In the reverse locking state shown in the figure, if the inner peach 15 is rotated clockwise, the third protrusion 23 will abut against the right side of the reverse locking portion 141, driving the locking block 14 to slide to the left to the outside of the outer peach 16, releasing the rotation restriction on the outer peach 16, and then reaching the Figure 1 The unlocked state is shown in .
[0043] The lock body structure in this embodiment eliminates the anti-locking knob in the traditional door lock, and directly utilizes the cooperation between the inner peach 15 and the locking block 14. When the inner peach 15 is rotated forward / reverse, the functions of anti-locking, anti-locking and unlocking can be realized. The structure inside the lock body is simplified, the stability of the lock body during operation is improved, and the lock body structure can be ensured to operate stably for a long time.
[0044] In one embodiment, the third protrusion 23 on the inner peach 15 can also be omitted. In this case, the inner peach 15 is rotated counterclockwise, and the second protrusion 22 can also drive the locking block 14 to slide to the right side to the side of the outer peach 16 and limit the rotation of the outer peach 16, thereby achieving Figure 4 . Accordingly, when unlocking is required, the inner lever 15 can only be rotated clockwise, and the first protrusion 21 abuts against the unlocking portion 131 to drive the lock tongue slider 13 to slide rightward, and the lock tongue 12 is moved into the housing 11 to complete the unlocking. Therefore, the basic anti-locking and unlocking functions can be realized, but in the anti-locking state, the unlocking can only be achieved by the inner lever 15.
[0045] In this embodiment, in order to improve the linkage efficiency between the inner detent 15 and the locking block 14, an inclined surface opposite to the second protrusion 22 is formed on one side of the anti-locking portion 141, and an inclined surface opposite to the third protrusion 23 is formed on the other side of the anti-locking portion 141. Figure 6 As shown, both the left and right sides of the anti-locking portion 141 are inclined surfaces, and when the second protrusions 22 and the third protrusions 23 on both sides contact them, they can easily drive the locking block 14 to slide leftward or rightward. Of course, in other embodiments, a groove for the second protrusion 22 to enter can be formed on one side of the anti-locking portion 141, and a groove for the third protrusion 23 to enter can be formed on the other side of the anti-locking portion 141. Through the cooperation of the protrusions and the grooves, the linkage efficiency of the inner shifter 15 and the locking block 14 can also be improved.
[0046] It should be noted that when the lock body structure is in the unlocked state, that is, when the lock tongue 12 moves into the housing 11, if the inner peach 15 is rotated counterclockwise in the above manner, the lock body structure will also be in the reverse locked state. At this time, the outer peach 16 and the outer handle connected thereto will not be able to rotate, affecting the normal use of the lock body structure. For this reason, a fifth projection 25 is also formed on the inner peach 15, and a limited position portion 132 is formed on the lock tongue slider 13. When the lock tongue 12 enters the housing 11 with the lock tongue slider 13, the limited position portion 132 abuts against the fifth projection 25, restricting the rotation of the inner peach 15 in the counterclockwise direction, and then reverse locking cannot be achieved. In other words, when the lock tongue 12 moves into the housing 11, the lock body structure cannot be placed in the reverse locked state by rotating the inner peach 15, thereby avoiding the phenomenon of reverse locking caused by mistaken operation by the user when the door leaf is opened.
[0047] In addition, in this embodiment, an unlocking tooth 17 is rotatably provided between the inner shifting peach 15 and the outer shifting peach 16, and the unlocking tooth 17 rotates coaxially with the inner shifting peach 15, and an unlocking groove 18 is formed at the axis of the unlocking tooth 17. A rack 142 that can mesh with the unlocking tooth 17 is formed at one end of the locking block 14, and one side of the unlocking tooth 17 meshes with the locking block 14 through teeth, and rotating the unlocking tooth 17 can drive the locking block 14 to slide. A through hole opposite to the unlocking groove 18 is provided on the outer shifting peach 16. The user can use a preset tool from the outside to reach into the unlocking groove 18 in the housing 11 to rotate the unlocking tooth 17, and then move the locking block 14 to the outside of the outer shifting peach 16 to release the reverse lock. Figure 4 For example, when the lock body structure is in the reverse lock state, the unlocking tooth 17 is rotated clockwise, so that the locking block 14 can be moved to the left side of the figure, thereby releasing the rotation restriction on the external peach 16, that is, releasing the reverse lock.
[0048] In addition, in this embodiment, a return spring 31 is further provided in the housing 11, which applies a force toward the unlocking side to the lock tongue slider 13. Figure 1 and Figure 2As shown, the return spring 31 applies a force toward the right to the lock tongue slider 13. When the lock tongue 12 and the lock tongue slider 13 are not subjected to other external forces, the return spring 31 can pull the lock tongue 12 into the housing 11 to prevent the lock tongue 12 from colliding with the user or other objects.
[0049] In this embodiment, the locking block 14 can slide in the housing 11 only when pushed by the two protrusions on the inner shifter 15 and the unlocking tooth 17. In order to ensure that the locking block 14 can slide more stably in the housing 11 and avoid sliding under the action of other external forces to cause reverse locking or unlocking. Therefore, a first clamping position 41 and a second clamping position 42 are formed on the side wall of the housing 11, and a limit spring 32 and a limit ball 33 are provided in the locking block 14. The limit spring 32 applies a force to the limit ball 33 toward the side wall of the housing 11. When reverse locking is not performed, as shown in FIG. Figure 1 , Figure 2 and Figure 5 As shown in FIG, the limiting ball 33 abuts against the first locking position 41; when the locking is reversed, as shown in FIG. Figure 3 and Figure 4 As shown, the limiting ball 33 abuts against the second clamping position 42. By limiting the movement of the limiting ball 33 by the first clamping position 41, the second clamping position 42 and the limiting spring 32, the locking block 14 can be indirectly fixed at a preset position in both the unlocked state and the locked state. When performing the locking or unlocking operation, the locking block 14 can be moved only after overcoming the force of the limiting spring 32 and the clamping position on the limiting ball 33, thereby improving the stability of the locking block 14.
[0050] Furthermore, a first clamping position 41 and a second clamping position 42 are provided on two opposite side walls of the housing 11, and limiting balls 33 are provided on both sides of the locking block 14, and the two ends of the limiting spring 32 respectively abut against the two limiting balls 33. The two opposite side surfaces of the locking block 14 can be limited at the same time, further improving its stability.
[0051] Furthermore, a guide groove 43 is formed between the first clamping position 41 and the second clamping position 42, and the width of the guide groove 43 is smaller than the width of the first clamping position 41 and the second clamping position 42. When performing the anti-locking or anti-locking operation, the limiting ball 33 will move between the first clamping position 41 and the second clamping position 42 through the guide groove 43, indirectly limiting the sliding direction of the locking block 14 to prevent it from being misaligned during operation.
[0052] In addition, in this embodiment, a door lock is also disclosed, including the above-mentioned lock body structure, an inner handle and an outer handle. Among them, one end of the inner handle passes through the housing 11 and is connected to the inner lever 15, and one end of the outer handle passes through the housing 11 and is connected to the outer lever 16. The user can rotate the inner lever 15 by rotating the inner handle, and rotate the outer lever 16 by rotating the outer handle, so as to realize various functions in the above-mentioned lock body structure.
[0053] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A lock body structure, characterized in that: include: case; A lock tongue slider is arranged in the housing and slides synchronously with the lock tongue, and an unlocking portion is arranged on the side thereof; An inner peach is rotatably arranged in the housing, and a first protrusion and a second protrusion are formed on the outer circumference; An outer clutch peach is coaxially rotatable with the inner clutch peach and is disposed in the housing, and a fourth protrusion is formed on the outer periphery; The locking block is slidably disposed in the housing and has a reverse locking portion formed on one side; The unlocking portion is arranged on a path where the first and fourth protrusions rotate along a first direction, and the counter-locking portion is arranged on a path where the second protrusion rotates along a second direction; when the second protrusion rotates along the second direction, it abuts against the counter-locking portion to drive the locking block to the side of the outer peach and restrict the rotation of the outer peach.
2. The lock structure according to claim 1, characterized in that: A third protrusion is formed on the outer periphery of the inner shifting piece, and the anti-locking portion is arranged on a path where the third protrusion rotates along the first direction.
3. The lock structure according to claim 2, characterized in that: One side of the anti-locking portion is formed with an inclined surface opposite to the second protrusion, and the other side of the anti-locking portion is formed with an inclined surface opposite to the third protrusion.
4. The lock structure according to claim 2, characterized in that: A groove for the second protrusion to enter is formed on one side of the anti-locking portion, and a groove for the third protrusion to enter is formed on the other side of the anti-locking portion.
5. The lock structure according to claim 1, characterized in that: A limited position portion is formed on the locking tongue slider; The outer periphery of the inner peach is formed with a fifth protrusion; When the locking tongue slides into the housing, the limiting portion abuts against the fifth protrusion to limit the rotation of the inner shifting piece along the second direction.
6. The lock structure according to claim 1, characterized in that: Also includes: An unlocking tooth is coaxially rotatably arranged between the inner and outer shifting nuts, an unlocking groove is formed at the axis, and one side is meshed and connected with the locking block; in The outer latch is provided with a through hole opposite to the unlocking groove.
7. The lock structure according to claim 1, characterized in that: Also includes: The return spring is arranged in the housing and applies a force toward the unlocking side to the lock tongue slider.
8. The lock structure according to claim 1, characterized in that: The side wall of the housing is formed with a first latching position and a second latching position; A limit spring and a limit ball are provided in the locking block, and the limit spring applies a force toward the side wall of the shell to the limit ball, wherein when the lock is not reversed, the limit ball abuts in the first clamping position, and when the lock is reversed, the limit ball abuts in the second clamping position.
9. The lock structure according to claim 8, characterized in that: The first clamping position and the second clamping position are provided on two opposite side walls of the housing; The limiting balls are arranged on both sides of the locking block.
10. The lock structure according to claim 8 or 9, characterized in that: A guide groove having the same direction as the sliding direction of the locking block is formed between the first clamping position and the second clamping position, and a width of the guide groove is smaller than a width of the first clamping position and the second clamping position.
11. A door lock, characterized in that: include: The lock body structure according to any one of claims 1 to 10; An inner handle, one end of which passes through the housing and is connected to the inner lever; One end of the outer handle passes through the shell and is connected to the outer handle.