Lock and door body

Abstract

Lock characterized by the fact that the lock includes: a handle unit with a first handle and a second handle that are opposite each other, a lock body unit comprising a locking bracket and a square pin, wherein the locking bracket is arranged on one side of the first handle and is provided with a locking hole, wherein one end of the square pin is connected to the first handle and the other end to the second handle, wherein the square pin is provided in its axial direction with a locking section and a free section, wherein the lock body unit is in a locked state when the locking section is received in the locking hole, and wherein the lock body unit is in an unlocked state when the free section is aligned in the locking hole.

Description

TECHNICAL AREA

[0001] The present utility model relates to the technical field of metal components in the construction industry and in particular to a lock and a door body. STATE OF THE ART

[0002] As an important component of metal parts in the construction industry, door locks are widely used in door frames in homes, offices, and public spaces, essentially enabling the easy and quick opening and closing of doors while ensuring security. A conventional door lock often employs a mechanical structure in which a square spindle (also known as a square spindle) connects an inner handle to an outer handle, extending or retracting the bolt and thus unlocking or locking the door.

[0003] However, such a lock, in its current state of the art, still exhibits some shortcomings in practical applications. In some locks, the change between the locked and unlocked states relies on a complex internal force transmission mechanism, which is not only structurally unnecessary and difficult to assemble, but also brings with it problems such as a loose fit and inaccurate positioning after long-term use. DISCLOSURE OF THE USE PATTERN

[0004] The present utility model aims to eliminate at least one of the aforementioned technical problems in the prior art. To this end, the utility model provides a lock whose locking and unlocking can be achieved with a simple mechanical structure.

[0005] The utility model also provides a door body with the lock described above.

[0006] A lock according to an embodiment in a first aspect of the utility model comprises: a handle unit with a first handle and a second handle that are opposite each other, a lock body unit comprising a locking bracket and a square pin, wherein the locking bracket is arranged on one side of the first handle and is provided with a locking hole, wherein one end of the square pin is connected to the first handle and the other end to the second handle, wherein the square pin is provided in its axial direction with a locking section and a free section, wherein the lock body unit is in a locked state when the locking section is received in the locking hole, and wherein the lock body unit is in an unlocked state when the free section protrudes into the locking hole.

[0007] The lock according to the embodiment of the utility model exhibits at least the following advantageous effects: By providing the locking section and the free section in the axial direction of the square spindle and fitting them with the locking hole in the locking bracket, a reliable change between the locked and unlocked states is achieved. When the locking section is inserted into the locking hole, the position of the square spindle is effectively limited, so that the lock is in the locked state and the complete closure of the door body is ensured. When the free section projects into the locking hole, the square spindle is freely rotatable within the locking hole to allow the lock to be unlocked. With this design, the change of state can be achieved simply by the axial movement of the square spindle without a complex force transmission mechanism.The design offers advantages such as a simple structure, reliable operation and obvious handling, while simultaneously improving ease of assembly and stability when using the lock.

[0008] According to some embodiments of the utility model, the locking hole is a square hole, wherein the locking section is rectangular cylindrical, wherein the free section is circular cylindrical, and wherein the locking section and the free section are arranged adjacent to each other in the axial direction of the square pin.

[0009] According to some embodiments of the utility model, the shapes or dimensions of the locking section and the square hole are adapted to each other, wherein the radial dimension of the free section is smaller than the radial dimension of the locking section, and wherein the free section is rotatable in the square hole when the free section is in the locking hole.

[0010] According to some embodiments of the utility model, the handle unit is provided with a mounting seat which is provided with a screw bolt which can be attached to the door body, wherein the locking bracket is received in the mounting seat and is provided with a recess, and wherein the screw bolt penetrates the recess in order to pre-position the locking bracket during assembly.

[0011] According to some embodiments of the utility model, the second handle is provided with a release hole that penetrates the second handle in the axial direction and is positioned coaxially to the square pin.

[0012] According to some embodiments of the utility model, the square pin is provided with an operating element which is connected to the square pin drive and is used to set the square pin into an axial movement.

[0013] According to some embodiments of the utility model, the first handle is provided with a first groove and a second groove, wherein the operating element is movably arranged in the first groove, wherein a first marking and a second marking are provided on the side of the square pin facing away from the operating element, wherein the first marking corresponds to the second groove when the lock body unit is in the locked state, and wherein the second marking corresponds to the second groove when the lock body unit is in the unlocked state.

[0014] According to some embodiments of the utility model, a spring plunger is provided in the locking section, wherein a protruding end of the spring plunger can be fitted to the locking bracket to provide feedback for positioning during the axial movement of the square pin.

[0015] According to some embodiments of the utility model, the handle unit further comprises a first decorative cover arranged on a base part of the first handle and a second decorative cover arranged on a base part of the second handle.

[0016] A door body according to an embodiment in a second aspect of the utility model comprises the lock according to the embodiment in the first aspect.

[0017] The door body according to the embodiment of the utility model exhibits at least the following advantageous effects: Due to the integration of the lock described above, the door body offers advantages such as a compact structure, reliable operation, and a clearly perceptible change of state. Since the lock itself has a simple mechanical structure and a stable locking and unlocking function, the door body can achieve smooth opening and closing as well as reliable protection in practical applications, with simplified installation and maintenance, thus improving the usability and user experience of the entire door system.

[0018] The additional aspects and advantages of the utility model are partly specified in the following description and partly clarified by the following description, or understood through the practice of the utility model. BRIEF DESCRIPTION OF THE FIGURES

[0019] The present utility model is further described in connection with the drawings and the exemplary embodiments. These show: Fig. 1 a schematic view of a lock according to an embodiment of the present utility model; Fig. 2 a schematic view of the interior of a lock according to an embodiment of the present utility model; and Fig. Figure 3 is a schematic view of a lock body unit according to an embodiment of the present utility model. DETAILED EXECUTION FORMS

[0020] The embodiments of the utility model shown in the figures are described in more detail below. In these figures, the same or similar reference numerals always denote the same or similar, or functionally identical or similar, elements. The embodiments described below with reference to the figures are exemplary and serve only to explain the utility model, without limiting it.

[0021] It should be noted that, within the context of the positional description, the direction or positioning designated by the terms "above," "below," "front," "back," "left," "right," etc., is used in relation to the direction or positioning depicted in the respective illustration, solely to describe the utility model and, where necessary, to simplify the description. These terms neither implicitly nor explicitly refer to the positioning, design, and operation of the device or element in question in a predetermined position, and therefore do not constitute a limitation of the utility model.

[0022] In the description of the utility model, the term "some" means "one or more" and "several" means two or more affected elements. The expressions "greater than," "less than," "above," and the like indicate that the limit is not included in the area, while the expressions "above," "below," "within," and the like indicate that the limit is included. The expressions "first," "second," etc., serve only to distinguish individual technical features without indicating or suggesting the relative importance, number, or order of the affected technical features.

[0023] Unless otherwise specified, the terms "provide," "assemble," and "connect" in the description of the utility model shall be understood in a broad sense, and a person skilled in the art shall be able to appropriately determine the specific meaning of the terms in the utility model in the context of the specific content of the technical solution. In the description of the utility model, the terms "an embodiment," "some embodiments," "a schematic embodiment," "an example," "a specific example," "some examples," and the like shall mean that the specific features, structures, materials, or characteristics described in connection with that embodiment or example, or with those embodiments or examples, shall be included in at least one embodiment or example of the present utility model.In the description, an explanatory term using the aforementioned concept need not refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or special characteristics may be combined in a suitable manner in one or more embodiments or examples. In the description, the terms "one embodiment," "several embodiments," "a schematic embodiment," "an example," "a specific example," "several examples," and the like mean that the specific features, structures, materials, or special characteristics described in connection with this embodiment or example, or with these embodiments or examples, are to be included in at least one embodiment or example of the present utility model.In the description, an explanatory term for the aforementioned concept need not refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or special characteristics can be combined in one or more embodiments or examples in a suitable manner.

[0024] Referring to Fig. 1 to Fig. 3 includes a castle: a handle unit with a first handle 100 and a second handle 110, which are opposite each other, and a lock body unit comprising a locking bracket 170 and a square spindle 140, wherein the locking bracket 170 is arranged on one side of the first handle 100 and is provided with a locking hole. One end of the square spindle 140 is connected to the first handle 100 and the other end to the second handle 110. The square spindle 140 is provided in its axial direction with a locking section 200 and a free section 190.

[0025] The lock body unit is in a locked state when the locking section 200 is engaged in the locking hole. The lock body unit is in an unlocked state when the free section 190 is aligned with the locking hole.

[0026] The locking hole is a square hole. The locking section 200 is rectangular cylindrical. The free section 190 is circular cylindrical. The locking section 200 and the free section 190 are arranged adjacent to each other in the axial direction of the square pin 140.

[0027] The shapes and dimensions of the locking section 200 and the square hole in the locking bracket 170 are matched to achieve locking after installation. Since the free section 190 has a smaller radial dimension, it is free to rotate within the locking hole when aligned with it, allowing the handle to be operated in the unlocked position. The different designs of the locking section 200 and the free section 190 ensure reliable position limitation in the locked position and smooth rotation in the unlocked position with a simple structure and a clearly perceptible transition, thus improving the operation and reliability of the lock.

[0028] The handle unit is provided with a mounting seat 230. The mounting seat 230 has a screw bolt that can be attached to the door body. The locking bracket 170 is received in the mounting seat 230 and has a recess 220. The screw bolt passes through the recess 220 to pre-position the locking bracket 170 during installation. During installation, the locking bracket 170 is inserted into the mounting seat 230 of the handle unit, and the screw bolt on the mounting seat 230 passes through the recess 220 of the locking bracket 170. The fit between the two parts provides a preliminary positioning of the locking bracket 170 to ensure its precise mounting position on the door body.This structure simplifies the assembly process, increases assembly efficiency and positioning accuracy, and prevents the displacement of the locking bracket 170 during assembly, which promotes stable fulfillment of the function of the entire lock.

[0029] The second handle 110 is provided with a release hole 150 that penetrates the handle in its axial direction. The release hole 150 is positioned coaxially with the square pin 140. This facilitates the use of an external release tool and thus emergency release in conjunction with the square pin 140.

[0030] A control element 160 is provided on the square pin 140. The control element 160 is drive-connected to the square pin 140 and is used to move the square pin 140 axially. The control element 160 can either be a projection formed integrally with the square pin 140 or a detachable structure that facilitates assembly or replacement.

[0031] The first handle 100 is provided with a first groove 180 and a second groove. The operating element 160 is movably arranged in the first groove 180. On the side of the square spindle 140 facing away from the operating element 160, a first marking and a second marking are provided. The first marking (e.g., red) is aligned with the second groove when the lock body is in the locked position. The second marking (e.g., blue) is aligned with the second groove when the lock body is in the unlocked position. This facilitates the user's obvious recognition of the lock's current state.

[0032] The spring plunger 210 (colloquially referred to as the ball plunger) is inserted into the locking section 200, and its protruding end can be fitted to the locking bracket 170 to provide distinct positioning feedback during the axial movement of the square pin 140. An internal lubricant can also be used to lubricate the moving components and reduce friction between them, resulting in smoother operation and improved durability.

[0033] The handle unit further comprises a first decorative cover 120 and a second decorative cover 130. The first decorative cover 120 is attached to a base part of the first handle 100, and the second decorative cover 130 is attached to a base part of the second handle 110. Optionally, the first decorative cover 120 and the second decorative cover 130 can be snapped into place on the first handle 100 and the second handle 110, respectively, to simplify assembly and disassembly and simultaneously improve the overall aesthetic appearance.

[0034] In the utility model lock, the locking and unlocking of the door body is achieved through the interaction of the handle unit and the lock body unit. Specifically, the handle unit comprises the first handle 100 and the second handle 110, which are positioned opposite each other. The second handle 110 is provided with a release hole 150, and this release hole 150 is coaxial with the square spindle 140. The lock body unit consists of the locking bracket 170 and the square spindle 140. The locking bracket 170 is located on one side of the first handle 100 and is provided with the locking hole in the form of a square hole. One end of the square spindle 140 is connected to the first handle 100, and the other end to the second handle 110. The square spindle is divided axially into the locking section 200 and the free section 190.

[0035] When the (rectangular cylindrical) locking section 200 of the square spindle 140 is inserted into the locking hole, the lock body assembly is moved into the locked position due to the matching of the shapes and dimensions of the locking section 200 and the square hole, thereby securely closing the door. When the (circular cylindrical) free section 190 of the square spindle 140 projects into the locking hole, it is rotatable within the square hole due to its smaller radial dimension compared to the locking section 200, thus moving the lock body assembly into the unlocked position and allowing the door to be opened.The spring plunger 210 is arranged on the square spindle 140. During axial movement of the square spindle 140, the plunger provides positioning feedback, ensuring the user has a clear perception of the change between the locked and unlocked states. Furthermore, the first handle 100 features a first groove 180 and a second groove, corresponding to the first and second markings, respectively, to provide clear visual feedback to the user. The handle assembly is also equipped with a mounting seat 230, which includes a screw bolt for fastening it to the door body. The locking bracket 170 is pre-positioned by the fit of the recess 220 and the screw bolt, simplifying the assembly process and increasing assembly accuracy.

[0036] Since the locking section 200 and the free section 190 of the square spindle 140 correspond to different states of the locking hole, stable and reliable locking and unlocking are achieved, ensuring safety and ease of use. The physical feedback for positioning generated by the spring plunger 210, in combination with the marking system on the first handle 100, allows the user to accurately determine the current operating state of the lock, thus improving the user experience. The change of state can therefore be achieved simply by the axial movement of the square spindle 140 without a complex internal force transmission mechanism, resulting in reduced manufacturing costs and low maintenance requirements.By providing the mounting seat 230 and the screw bolt attached to it, as well as the design of the recess 220 of the locking bracket 170, the lock can be quickly pre-positioned during assembly, significantly increasing the efficiency and accuracy of the installation. The inclusion of the first decorative cover 120 and the second decorative cover 130 not only improves the overall aesthetics of the lock, but also protects the internal mechanical structure from external influences, thus extending its service life.

[0037] In an existing design, the first handle (100) is intended to differentiate between a left-opening door and a right-opening door. After structural optimization, however, this distinction is no longer necessary, and the first handle (100) can be used universally for both types of doors. To change the door's opening direction, an adjustment screw is simply removed from its current position on the other side and reinstalled in the corresponding position.

[0038] A door body according to an embodiment in a second aspect of the utility model comprises the lock according to the embodiment in the first aspect.

[0039] Due to the integration of the lock described above, the door body offers advantages such as a compact structure, reliable operation, and clearly perceptible status changes. Since the lock itself features a simple mechanical structure and stable locking / unlocking function, the door body achieves smooth opening and closing, reliable protection, and simplified installation and maintenance in practical applications, thus improving the overall usability and user experience of the door system.

[0040] The exemplary embodiments of the present utility model have been described in more detail above in connection with the figures, but the utility model is not intended to be limited to these. Various modifications can be made within the scope of the knowledge of a person skilled in the art without deviating from the concept of the utility model. Reference symbol list 100 first handle 110 second handle 120 first decorative lid 130 second decorative lid 140 square pin 150 release hole 160 Control unit 170 Locking bracket 180 first groove 190 free section 200 locking section 210 spring plungers 220 Exclusion 230 assembly seat

Claims

[1] Castle, characterized by , that the castle includes: a handle unit with a first handle and a second handle that are opposite each other, a lock body unit comprising a locking bracket and a square pin, wherein the locking bracket is arranged on one side of the first handle and is provided with a locking hole, wherein one end of the square pin is connected to the first handle and the other end to the second handle, wherein the square pin is provided in its axial direction with a locking section and a free section, wherein the lock body unit is in a locked state when the locking section is received in the locking hole, and wherein the lock body unit is in an unlocked state when the free section is aligned in the locking hole. [2] Lock according to claim 1, characterized by, that the locking hole is a square hole, wherein the locking section is rectangular cylindrical, wherein the free section is circular cylindrical, and wherein the locking section and the free section are arranged adjacent to each other in the axial direction of the square pin. [3] Lock according to claim 2, characterized by , that the shapes or dimensions of the locking section and the square hole are adapted to each other, wherein the radial dimension of the free section is smaller than the radial dimension of the locking section, and wherein the free section is rotatable in the square hole when the free section is in the locking hole. [4] Lock according to claim 1, characterized by, that the handle unit is provided with a mounting seat which is provided with a screw bolt which can be attached to the door body, wherein the locking bracket is received in the mounting seat and is provided with a recess, and wherein the screw bolt penetrates the recess in order to pre-position the locking bracket during assembly. [5] Lock according to claim 1, characterized by , that the second handle is provided with a release hole which penetrates the second handle in the axial direction and is positioned coaxially to the square pin. [6] Lock according to claim 1, characterized by , that the square pin is provided with an operating element which is connected to the drive of the square pin and is used to move the square pin axially. [7] Lock according to claim 6, characterized by, that the first handle is provided with a first groove and a second groove, wherein the operating element is movably arranged in the first groove, wherein a first mark and a second mark are provided on the side of the square pin facing away from the operating element, wherein the first mark corresponds to the second groove when the lock body unit is in the locked state, and wherein the second mark corresponds to the second groove when the lock body unit is in the unlocked state. [8] Lock according to claim 1, characterized by , that a spring plunger is provided in the locking section, wherein a protruding end of the spring plunger can be fitted to the locking bracket to provide feedback for positioning during the axial movement of the square pin. [9] Lock according to claim 1, characterized by, that the handle unit further comprises a first decorative cover arranged on a base part of the first handle and a second decorative cover arranged on a base part of the second handle. [10] Door body, characterized by that the door body comprises a lock according to one of claims 1 to 9.

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