Door lock

Abstract

The embodiment of the utility model provides a door lock, which comprises a lock box, a door lock, a first lock cylinder, a second lock cylinder, a first lock cylinder and a second lock cylinder, the lock cylinder penetrates through the two first lock cylinder holes and is fixed on the lock box, and the lock cylinder is provided with a rotatable shifting wheel; the lock cylinder column is rotatably arranged in the lock cylinder in a sleeving manner; the spring bolt is fixed in the accommodating part; and under the condition that the lock cylinder column is rotated, the rotatable shifting wheel rotates along with the lock cylinder column and controls the lock tongue to enter and exit at the preset position. According to the technical scheme, the door lock can be simpler in structure, the manufacturing cost of the door lock is reduced, and meanwhile the installation and maintenance difficulty is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and in particular to a door lock. Background Art

[0002] With the development of society and the increase in security needs, door locks have experienced a development from simple wooden door locks to diversified door locks such as mechanical, electronic, and intelligent. Nowadays, the structure of door locks is becoming increasingly complex, and with it comes an increase in the production cost of door locks, and the cost of installation and maintenance has also increased.

[0003] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0004] The embodiments of the present application provide a door lock to solve or alleviate one or more of the technical problems mentioned above.

[0005] As one aspect of an embodiment of the present application, an embodiment of the present application provides a door lock, including:

[0006] The lock box is provided with a receiving portion, and first lock core holes are provided on both sides of the receiving portion;

[0007] A lock core, which passes through the two first lock core holes and is fixed on the lock box, wherein the lock core is provided with a rotatable dial wheel;

[0008] A lock core column, rotatably sleeved in the lock core;

[0009] A locking tongue, fixed in the receiving portion;

[0010] When the lock cylinder is rotated, the rotatable dial wheel rotates accordingly and controls the entry and exit of the lock tongue at a preset position.

[0011] Optionally, a limiting hole is provided on one side of the accommodation portion;

[0012] The locking tongue is provided with a positioning pin, and the end of the positioning pin is limited in the limiting hole;

[0013] Wherein, when the rotatable dial wheel rotates, the positioning pin moves in the first direction to release the movement restriction of the lock tongue in the second direction, and then the lock tongue moves in the second direction under the thrust of the rotatable dial wheel;

[0014] The first direction is perpendicular to the second direction.

[0015] Optionally, the locking tongue is provided with a groove in a second direction;

[0016] The side wall of one side of the accommodating portion is recessed inwardly to form a clamping portion, and the clamping portion is located on the opposite side of the limiting hole;

[0017] The clamping portion is clamped in the groove and the two can move relatively in the second direction.

[0018] Optionally, the lock tongue is provided with a receiving groove, the opening of the receiving groove faces the rotatable dial wheel;

[0019] Wherein, an elastic member and a sliding member are provided in the accommodating groove;

[0020] The positioning pin is provided on the sliding member, and the sliding member is abutted against the bottom of the accommodating groove through the elastic member;

[0021] When the toggle portion of the rotatable dial applies force to the sliding member, the sliding member moves toward the elastic member, thereby driving the positioning pin to move along the first direction, thereby releasing the restriction of the positioning pin on the movement of the lock tongue in the second direction;

[0022] When the movement restriction of the lock tongue in the second direction is released, the driving portion of the rotatable dial applies force to the opening edge of the accommodating slot, thereby driving the lock tongue to move in the second direction to unlock or lock.

[0023] Optionally, the fixing plate is located on a side where the locking tongue enters and exits;

[0024] The fixing plate is provided with a first through hole, a first locking tongue hole and a first mounting hole;

[0025] Wherein, the first through holes are located at two ends of the fixing plate, the first lock tongue hole is adapted to the lock tongue, and the first mounting hole is opposite to the lock core.

[0026] Optionally, the projection of the lock core in a third direction is a gourd shape, and the third direction is perpendicular to the first direction and the second direction;

[0027] The gourd-shaped cross section includes a circular cross section and a half-racetrack cross section;

[0028] In the lock core, the first part structure corresponding to the circular cross section is used to rotate with the key, the second part structure corresponding to the semi-track shape is used to be engaged and fixed with the first lock core hole, and a center hole in the second direction is provided in the middle of the second part structure;

[0029] Wherein, the first mounting hole corresponds to the center hole, and the two are used for screws to pass through one by one to fix the lock core.

[0030] Optionally, the lock core column is provided with two key holes in the third direction, and the key holes are symmetrical.

[0031] Optionally, the protective cover is provided with a second lock core hole, and the protective cover is sleeved on the lock core through the second lock core hole.

[0032] Optionally, the blocking piece is provided with a second locking tongue hole, a second mounting hole and a second through hole;

[0033] The second locking tongue hole is matched with the first locking tongue hole, the second mounting hole is matched with the first mounting hole, and the second through hole is matched with the first through hole.

[0034] Optionally, the lock box and the lock core are both made of metal material.

[0035] The above technical solution adopted in the embodiment of the present application may have the following advantages:

[0036] The lock core is fixed in the first lock core hole, and the lock core passes through and is connected to the lock box. The lock core has a rotatable dial wheel, and the lock core column is sleeved therein. When the lock core column rotates, the rotatable dial wheel also rotates, thereby controlling the in and out of the lock tongue. In this way, the door lock structure can be made simpler, the door lock manufacturing cost can be reduced, and the difficulty of installation and maintenance can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0038] Figure 1 It is an exploded view of the door lock provided in the embodiment of the present application.

[0039] Figure 2 It is a schematic diagram of the structure of the lock box provided in the embodiment of the present application.

[0040] Figure 3 It is a schematic diagram of the structure of the lock box provided in an embodiment of the present application.

[0041] Figure 4 It is a schematic diagram of the structure of the lock tongue provided in an embodiment of the present application.

[0042] Figure 5 It is a schematic diagram of the structure of the lock core provided in an embodiment of the present application.

[0043] Figure 6 It is a schematic diagram of the structure of the protective cover provided in an embodiment of the present application.

[0044] Figure 7 It is a schematic diagram of the structure of the baffle provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 1. Lock box; 11. Accommodating portion; 111. First lock core hole; 112. Limiting hole; 113. Holding portion; 12. Fixing plate; 121. First through hole; 122. First lock tongue hole; 123. First mounting hole; 2. Lock core; 21. Rotatable dial; 22. Center hole; 3. Lock core column; 31. Keyhole; 4. Lock tongue; 41. Groove; 42. Accommodating groove; 421. Sliding piece; 4211. Positioning pin; 5. Protective cover; 51. Second lock core hole; 6. Blocking piece; 61. Second lock tongue hole; 62. Second mounting hole; 63. Second through hole. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] To facilitate those skilled in the art to understand the technical solutions provided in the embodiments of the present application, the relevant technologies are described below:

[0050] The lock core is fixed in the first lock core hole, and the lock core passes through and is connected to the lock box. The lock core has a rotatable dial wheel, and the lock core column is sleeved therein. When the lock core column rotates, the rotatable dial wheel also rotates, thereby controlling the in and out of the lock tongue. In this way, the door lock structure can be made simpler, the manufacturing cost of the door lock can be reduced, and the difficulty of installation and maintenance can be reduced.

[0051] To this end, an embodiment of the present application provides a door lock technical solution. Based on this, a lock core 2 is fixed in the first lock core hole 111, and the lock core 2 passes through and is connected to the lock box 1. The lock core 2 has a rotatable dial wheel 21, and the lock core column 3 is sleeved therein. When the toggle portion of the rotatable dial wheel 21 applies force to the sliding member 421, the sliding member 421 moves in the direction of the elastic member, thereby driving the positioning pin 4211 to move along the first direction, thereby releasing the restriction of the positioning pin 4211 on the movement of the lock tongue 4 in the second direction; when the movement restriction of the lock tongue 4 in the second direction is released, the toggle portion of the rotatable dial wheel 21 applies force to the opening edge of the accommodating groove 42, thereby driving the movement of the lock tongue 4 in the second direction to unlock or close the lock. See below for details.

[0052] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

[0053] like Figures 1 to 7 As shown, the door lock may include: a lock box 1, a lock core 2, a lock core column 3, and a lock tongue 4. In some embodiments, the door lock may also include a protective cover 5 and a blocking piece 6.

[0054] The lock box 1 is provided with a receiving portion 11, and first lock core holes 111 are provided on both sides of the receiving portion 11. The lock box 1 can be made of metal material, or a composite material according to actual needs. It should be noted that the lock box 1 can be a rectangular parallelepiped, or can be designed into other shapes according to actual needs, and can have some special contours or design details.

[0055] The lock core 2 passes through the two first lock core holes 111 and is fixed on the lock box 1 . The lock core 2 is provided with a rotatable dial wheel 21 .

[0056] The lock cylinder column 3 is rotatably sleeved in the lock cylinder 2. The lock cylinder column 3 can be a cylindrical structure made of metal.

[0057] The lock tongue 4 is fixed in the receiving portion 11. The lock tongue 4 can be in a rectangular shape. According to the design and functional requirements of the door lock, the shape of the lock tongue 4 can also be curved or other special shapes. The lock tongue 4 can be made of metal to ensure its firmness and durability as much as possible. The lock tongue can be made of other materials to meet different security requirements.

[0058] When the lock cylinder 3 is rotated, the rotatable dial wheel 21 rotates accordingly and controls the entry and exit of the lock tongue 4 at a preset position.

[0059] In this embodiment, a lock core 2 is fixed in the first lock core hole 111, and the lock core 2 passes through and is connected to the lock box 1. The lock core 2 has a rotatable dial wheel 21, and the lock core 2 column is sleeved therein. When the lock core column 3 rotates, the rotatable dial wheel 21 also rotates, and the rotatable dial wheel 21 will resist the lock and push the lock tongue 4 in and out during a stroke. In this way, the door lock structure can be made simpler, the door lock manufacturing cost can be reduced, and the difficulty of installation and maintenance can be reduced.

[0060] In an optional embodiment, a limiting hole 112 is provided on one side of the accommodating portion 11. The limiting hole 112 is on one side of the lock tongue 4 and is used to limit the position of the lock tongue 4. The limiting hole 112 should adapt to the shapes of different lock tongues or other lock components.

[0061] The lock tongue 4 is provided with a positioning pin 4211, and the end of the positioning pin 4211 is limited in the limiting hole 112. The positioning pin 4211 can be hemispherical, cylindrical, conical or other special shapes to adapt to the shape and size of the limiting hole 112, and can make the positioning pin 4211 effectively limit the movement of the lock tongue 4.

[0062] When the rotatable dial 21 rotates, the positioning pin 4211 moves in the first direction to release the movement restriction of the lock tongue 4 in the second direction, and then the lock tongue 4 moves in the second direction under the thrust of the rotatable dial 21 .

[0063] The first direction is perpendicular to the second direction.

[0064] In this way, when the rotatable dial wheel 21 is not rotated (the key is not rotated), the lock tongue 4 will not move in the second direction, and is either in the extended locked state (extended) or in the unlocked state (not extended), thereby maintaining the state of the door lock.

[0065] In this embodiment, the limiting hole 112 may be a V-shaped hole, and in the unlocked state, the positioning pin 4211 is located at the left end point of the V-shaped hole. When the rotatable dial 21 rotates, the positioning pin 4211 moves from the left end point of the V-shaped hole to the lower end point of the V-shaped hole and finally to the right end point of the V-shaped hole. At this time, the lock tongue 4 extends and the door lock is in the locked state.

[0066] In an optional embodiment, the locking tongue 4 is provided with a groove 41 in the second direction.

[0067] The side wall of one side of the accommodating portion 11 is recessed inward to form a clamping portion 113, and the clamping portion 113 is located on the opposite side of the limiting hole 112. The clamping portion 113 is clamped into the groove 41 and the two can move relative to each other in the second direction.

[0068] The groove 41 may be in the shape of an elongated strip.

[0069] The clamping portion 113 may be multiple to increase stability, and the shape and size of the clamping portion 113 may be adapted to the shape and size of the groove 41. The clamping portion 113 and the groove 41 may be made of wear-resistant material, or a lubricant may be added between the two to improve the wear resistance and durability between the clamping portion 113 and the groove 41.

[0070] In this embodiment, the mutual locking of the holding portion 113 and the groove 41 in the first direction can prevent the lock tongue 4 from swinging in the first direction but only moving in the second direction when the door lock is opened and closed, thereby enhancing the stability and reliability of the door lock.

[0071] In an optional embodiment, the lock tongue 4 is provided with a receiving groove 42, the opening of which faces the rotatable dial wheel 21. An elastic member and a sliding member 421 are provided in the receiving groove 42. The shape of the receiving groove 42 can be rectangular or other shapes, and the shape of the receiving groove 42 is adapted to the shape of the sliding member 421. The elastic member can be a spring or other elastic member. The sliding member 421 can be made of metal or plastic, and is used to move along the receiving groove 42 (i.e., along the first direction).

[0072] The sliding member 421 is provided with a positioning pin 4211, and the sliding member 421 is abutted against the bottom of the receiving groove 42 through an elastic member. The positioning pin 4211 can be semicircular, and is used to limit the movement range of the locking tongue 4 and ensure that the locking tongue can be stably stopped when necessary.

[0073] When the toggle portion of the rotatable dial 21 applies force to the sliding member 421, the sliding member 421 moves toward the elastic member, thereby driving the positioning pin 4211 to move along the first direction, thereby releasing the restriction of the positioning pin 4211 on the movement of the lock tongue 4 in the second direction. In this way, the lock tongue 4 can move when needed to ensure smooth opening and closing of the door lock.

[0074] When the movement restriction of the lock tongue 4 in the second direction is released, the toggle portion of the rotatable dial wheel 21 applies force to the opening edge of the receiving groove 42, thereby driving the lock tongue 4 to move in the second direction to unlock or close the lock. The edge of the receiving groove 42 can be an angular shape, a chamfer, or a rounded corner design to reduce friction and wear.

[0075] In this embodiment, the rotatable dial 21 applies force to move the sliding member. After the movement restriction of the lock tongue is released, the force of the rotatable dial 21 drives the lock tongue to extend or retract into the accommodating portion, thereby realizing the start or close of the door lock with a simple structure.

[0076] In an optional embodiment, the lock box 1 includes a fixing plate 12. The fixing plate 12 can be made of a durable metal material. The fixing plate 12 is located on the side where the lock tongue 4 enters and exits. The fixing plate 12 can be rectangular or other geometric shapes.

[0077] The fixing plate 12 is provided with a first through hole 121, a first locking bolt hole 122 and a first mounting hole 123. The first through hole 121, the first locking bolt hole 122 and the first mounting hole 123 may be circular and used to fix other parts or connect the lock box to other components.

[0078] The first through holes 121 are located at both ends of the fixing plate 12, and are used to fix the lock box 1 to the door frame. The first lock tongue hole 122 is adapted to the lock tongue 4. The first mounting hole 123 is opposite to the lock core 2, and is used to fix the lock box 1 corresponding to the lock core 2.

[0079] In this embodiment, the holes provided in the fixing plate 12 are used to fix and adapt the lock tongue and install the lock core, respectively. In this way, the installation efficiency of the door lock can be increased, and the lock core 2 can be easily replaced.

[0080] In an optional embodiment, the projection of the lock core 2 in the third direction is gourd-shaped, and the third direction is perpendicular to the first direction and the second direction; the gourd-shaped cross section includes a circular cross section and a semi-racetrack cross section; in the lock core, the first part structure corresponding to the circular cross section is used to rotate with the key, the second part structure corresponding to the semi-racetrack shape is used to be engaged and fixed with the first lock core hole, and a center hole in the second direction is provided in the middle of the second part structure;

[0081] The first mounting hole 123 corresponds to the central hole 22 , and the two are used for screws to pass through one by one to fix the lock core 2 .

[0082] Thus, the installer can insert the screw through the first installation hole 123 from the outside and penetrate into the receiving portion, and one end of the screw that penetrates into the receiving portion is screwed into the center hole 22, thereby cooperating with the first lock core hole 111 to fix the lock core 2 on the lock box. When disassembling, the screw and the center hole 22 can also be disassembled from the outside with a screwdriver. Therefore, the door lock is easy to install and disassemble.

[0083] In an optional embodiment, the door lock may further include a protective cover 5. The protective cover 5 is made of metal or plastic material and is used to protect the lock core from external damage. The protective cover 5 is provided with a second lock core hole 51, and the protective cover 5 is sleeved on the lock core 2 through the second lock core hole 51. The second lock core hole 51 matches the shape of the first lock core hole 111 so as to be correctly sleeved on the lock core.

[0084] In this embodiment, the provision of the protective cover 5 can reduce external damage to the lock core 2 and increase the safety and stability of the lock core.

[0085] In an optional embodiment, the door lock may further include a blocking piece 6. The blocking piece 6 may be made of metal or plastic material, and is used to further fix the lock box 1 and the lock cylinder 2 to the door frame.

[0086] The blocking piece 6 is provided with a second locking tongue hole 61 , a second mounting hole 62 and a second through hole 63 .

[0087] Among them, the second bolt hole 61 is matched with the first bolt hole 122, the second mounting hole 62 is matched with the first mounting hole 123, and the second through hole 63 is matched with the first through hole 121. These holes are matched with the holes of the lock box 1 to facilitate correct installation.

[0088] In this embodiment, the provision of the blocking piece 6 can make the lock core 2 and the lock box 1 more firmly fixed in the door frame, thereby increasing the stability and safety of the door lock.

[0089] In an optional embodiment, the lock box 1 and the lock core 2 are both made of metal materials. The combination of materials is not limited and depends on the design requirements, cost budget, appearance requirements, and requirements for structural strength, weight and durability of the product.

[0090] In this embodiment, the lock box 1 and the lock core 2 are made of metal materials, which can support and fix various components of the door lock and increase the stability and structural strength of the door lock.

[0091] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0092] For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0093] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0094] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and 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", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0095] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0096] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0097] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0098] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A door lock, characterized in that: include: A lock box (1) is provided with a receiving portion (11), and first lock core holes (111) are provided on both sides of the receiving portion (11); A lock core (2) passing through the two first lock core holes (111) and fixed on the lock box (1), wherein the lock core (2) is provided with a rotatable dial wheel (21); A lock core column (3) rotatably sleeved in the lock core (2); A locking tongue (4) fixed in the accommodating portion (11); When the lock cylinder (3) is rotated, the rotatable dial wheel (21) rotates accordingly and controls the entry and exit of the lock tongue (4) at a preset position.

2. The door lock according to claim 1, characterized in that: A limiting hole (112) is provided on one side of the accommodating portion (11); The locking tongue (4) is provided with a positioning pin (4211), and the end of the positioning pin (4211) is confined in the limiting hole (112); Wherein, when the rotatable dial wheel (21) rotates, the positioning pin (4211) moves in the first direction to release the restriction on the movement of the lock tongue (4) in the second direction, and then the lock tongue (4) moves in the second direction under the thrust of the rotatable dial wheel (21); The first direction is perpendicular to the second direction.

3. The door lock according to claim 2, characterized in that: The locking tongue (4) is provided with a groove (41) in a second direction; A side wall on one side of the accommodating portion (11) is recessed inwardly to form a clamping portion (113), and the clamping portion (113) is located on the opposite side of the limiting hole (112); The clamping portion (113) is clamped into the groove (41) and the two can move relative to each other in the second direction.

4. The door lock according to claim 2, characterized in that: The locking tongue (4) is provided with a receiving groove (42), and the opening of the receiving groove (42) faces the rotatable dial wheel (21); Wherein, an elastic member and a sliding member (421) are provided in the accommodating groove (42); The sliding member (421) is provided with the positioning pin (4211), and the sliding member (421) is abutted against the bottom of the accommodating groove (42) through the elastic member; When the toggle portion of the rotatable dial wheel (21) applies force to the sliding member (421), the sliding member (421) moves in the direction of the elastic member, thereby driving the positioning pin (4211) to move along the first direction, thereby releasing the restriction of the positioning pin (4211) on the movement of the lock tongue (4) in the second direction; When the movement restriction of the lock tongue (4) in the second direction is released, the driving portion of the rotatable dial wheel (21) applies force to the opening edge of the receiving groove (42), thereby driving the lock tongue (4) to move in the second direction to unlock or lock.

5. The door lock according to claim 1, characterized in that: The lock box (1) comprises a fixing plate (12); The fixing plate (12) is located on a side where the locking tongue (4) enters and exits; The fixing plate (12) is provided with a first through hole (121), a first locking tongue hole (122) and a first mounting hole (123); The first through holes (121) are located at two ends of the fixing plate (12), the first lock tongue hole (122) is adapted to the lock tongue (4), and the first mounting hole (123) is opposite to the lock core (2).

6. The door lock according to claim 5, characterized in that: The projection of the lock core (2) in a third direction is a gourd shape, and the third direction is perpendicular to the first direction and the second direction; The gourd-shaped cross section includes a circular cross section and a half-racetrack cross section; In the lock core (2), the first part structure corresponding to the circular cross section is used to rotate in cooperation with the key, the second part structure corresponding to the semi-track shape is used to engage and fix with the first lock core hole (111), and a center hole (22) in the second direction is provided in the middle of the second part structure; The first mounting hole (123) corresponds to the central hole (22), and the two are used for screws to pass through one by one to fix the lock core (2).

7. The door lock according to any one of claims 1 to 5, characterized in that: The lock core column (3) is provided with two key holes (31) in the third direction, and the key holes (31) are symmetrical.

8. The door lock according to any one of claims 1 to 5, characterized in that: Also includes a protective cover (5); The protective cover (5) is provided with a second lock core hole (51), and the protective cover (5) is sleeved on the lock core (2) through the second lock core hole (51).

9. The door lock according to claim 5, characterized in that: Also includes a baffle (6); The blocking piece (6) is provided with a second locking tongue hole (61), a second mounting hole (62) and a second through hole (63); The second locking tongue hole (61) is matched with the first locking tongue hole (122), the second mounting hole (62) is matched with the first mounting hole (123), and the second through hole (63) is matched with the first through hole (121).

10. The door lock according to any one of claims 1 to 5, characterized in that: The lock box (1) and the lock core (2) are both made of metal material.

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