Door lock convenient to assemble

Abstract

The utility model discloses a door lock convenient to assemble, which comprises a door lock rear cover, an assembly mounting shell is clamped at the upper end of the door lock rear cover, a display support is clamped at the front end of the assembly mounting shell, mounting side plates are symmetrically arranged on two sides of the door lock rear cover, and the assembly mounting shell is clamped between the upper ends of the mounting side plates. Connecting clamping positions are symmetrically arranged at the upper ends of the installation side plates in a concave mode, connecting clamping blocks are symmetrically arranged on the two upper sides of the display support in a protruding mode, the size of the connecting clamping positions is larger than that of the connecting clamping blocks, the connecting clamping blocks are correspondingly clamped in the connecting clamping positions to be connected in a clamped mode, and positioning protruding strips are symmetrically arranged on the two upper sides of the assembly installation shell in a protruding mode. Positioning grooves are formed in the opposite sides of the connecting clamping blocks in a concave mode, and the positioning protruding strips are correspondingly clamped in the positioning grooves to be connected in a positioning mode. The assembly installation shell and the display support can be stably clamped at the upper end of the door lock rear cover, the structure is compact, connection is reliable, the assembling process is simple and rapid, production efficiency is improved, and assembling cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology, specifically relating to a door lock that is easy to assemble. Background Technology

[0002] With the continuous development of smart lock technology, traditional mechanical locks are gradually being replaced by smart locks with electronic control functions. These smart locks generally integrate multiple modules such as display modules, power systems, control circuits, and mechanical transmission components. Their structures are becoming increasingly complex, placing higher demands on assembly efficiency and structural stability. Especially in the process of mass production, the assembly method of the lock directly affects production efficiency, assembly accuracy, and ease of maintenance in the later stages.

[0003] Currently, most door lock products on the market have the following shortcomings in their structural design: First, the various functional components are mostly fixed with screws or nested together, making the assembly process cumbersome and time-consuming. The assembly accuracy depends on the operator's manual adjustment, which makes it difficult to meet the needs of efficient assembly. Second, there is a lack of effective modular positioning structure, which makes it easy for the functional components to be misaligned or loose during assembly, affecting the stability of use and production efficiency.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a door lock that is easy to assemble, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a door lock that is easy to assemble, comprising a door lock back cover, a component mounting shell being fitted onto the upper end of the door lock back cover, a display bracket being fitted onto the front end of the component mounting shell, mounting side plates being symmetrically arranged on both sides of the door lock back cover, the component mounting shell being fitted between the upper ends of the mounting side plates, connecting slots being symmetrically recessed on the upper ends of the mounting side plates, connecting blocks being symmetrically protruding on both upper sides of the display bracket, the size of the connecting slot being larger than the size of the connecting block, the connecting block being correspondingly engaged in the connecting slot, positioning protrusions being symmetrically protruding on both upper sides of the component mounting shell, and a positioning groove being recessed on the opposite side of the connecting block, the positioning protrusion being correspondingly engaged in the positioning groove for positioning connection.

[0007] Furthermore, both the positioning protrusion and the positioning groove are arc-shaped.

[0008] Furthermore, a front cover is installed at the lower end of the door lock rear cover. Several fixing pins are symmetrically arranged on the inner sides of the front cover, and several fixing holes are symmetrically opened on the surface of the rear cover. The fixing holes correspond one-to-one with the fixing pins, and are connected and fixed by fasteners passing through the fixing holes and fixing pins.

[0009] Furthermore, the bottom of the front cover of the door lock is provided with a mounting base cover, and the rear two sides of the mounting base cover are symmetrically provided with positioning protrusions. The lower two sides of the rear cover of the door lock are symmetrically provided with positioning slots. The positioning protrusions are respectively inserted into the positioning slots to realize the positioning connection between the front cover and the rear cover of the door lock.

[0010] Furthermore, a buffer rubber plate is installed on the rear surface of the door lock back cover, and the top of the buffer rubber plate is provided with a rubber plate protrusion, which is positioned higher than the top of the door lock back cover.

[0011] Furthermore, the surface edge of the door lock back cover is provided with a number of first rubber plate through holes, and the surface edge of the buffer rubber plate is provided with a number of second rubber plate through holes. The number of first rubber plate through holes and the number of second rubber plate through holes correspond one-to-one, and are connected and fixed by fasteners passing through the first rubber plate through holes and the second rubber plate through holes.

[0012] Furthermore, a battery is installed inside the component mounting housing, a control motherboard is installed at the lower end of the component mounting housing, a number of control buttons are provided on the surface of the control motherboard, a number of press buttons are provided at the lower end of the display bracket, and the press buttons and control buttons are in one-to-one correspondence and abut against each other, and a display screen is installed inside the display bracket.

[0013] Furthermore, the surfaces of several of these press buttons are all arc-shaped spherical structures.

[0014] Furthermore, the clutch lever head and motor assembly are respectively installed inside the front cover of the door lock.

[0015] The present invention has the following advantages: The door lock back cover has symmetrical mounting side plates on both sides. The component mounting shell is fitted between the upper ends of the mounting side plates. The upper ends of the two mounting side plates are symmetrically recessed with connecting slots. The upper sides of the display bracket are symmetrically protruding with connecting blocks. The two connecting blocks are correspondingly engaged in the two connecting slots. The upper sides of the component mounting shell are symmetrically protruding with arc-shaped positioning protrusions. The opposite side of each of the two connecting blocks is recessed with an arc-shaped positioning groove. The two positioning protrusions are correspondingly engaged in the two positioning grooves for positioning and connection. Thus, the component mounting shell and the display bracket are fitted onto the upper end of the door lock back cover. The easily assembled door lock component mounting shell and display bracket of the present invention can be stably fitted onto the upper end of the door lock back cover. This not only has a compact structure and reliable connection, but also a simple and quick assembly process, greatly improving production efficiency and reducing assembly costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0018] Figure 3 This is an exploded structural diagram of the door lock back cover, component mounting shell, and display bracket of this utility model.

[0019] Figure 4 This is a schematic diagram of the front cover structure of the door lock according to this utility model.

[0020] Reference numerals: Door lock rear cover 10; Component mounting shell 20; Display bracket 30; Door lock front cover 40; Mounting side plate 11; Connecting slot 111; Connecting block 31; Positioning protrusion 21; Positioning groove 311; Fixing through post 41; Fixing through hole 12; Mounting bottom cover 42; Positioning protrusion 421; Positioning slot 13; Buffer rubber plate 50; Rubber plate protrusion 51; First rubber plate through hole 14; Second rubber plate through hole 52; Battery 22; Control main board 23; Control button 231; Press button 32; Display screen 33; Clutch handle head 43; Motor assembly 44. Detailed Implementation

[0021] like Figures 1 to 4 As shown, an easy-to-assemble door lock includes a door lock back cover 10, an assembly mounting shell 20 is snapped onto the upper end of the door lock back cover 10, a display bracket 30 is snapped onto the front end of the assembly mounting shell 20, and a door lock front cover 40 is installed at the lower end of the door lock back cover 10.

[0022] In practical implementation, mounting side plates 11 are symmetrically arranged on the left and right sides of the door lock back cover 10. The component mounting shell 20 is fixed between the upper ends of the two mounting side plates 11 by a snap-fit ​​method, thereby achieving connection with the component mounting shell 20. The upper ends of the two mounting side plates 11 are symmetrically recessed with connecting slots 111 for positioning and connection with the display bracket 30. The upper sides of the display bracket 30 are symmetrically protruding with connecting blocks 31 for engaging with the connecting slots 111. The size of the connecting slot 111 is slightly larger than the size of the connecting block 31. The two connecting blocks 31 are correspondingly engaged in the two connecting slots 111. The upper sides of the component mounting shell 20 are symmetrically provided with arc-shaped positioning protrusions 21. The opposite side of the two connecting blocks 31 is provided with corresponding arc-shaped positioning grooves 311. The two positioning protrusions 21 are correspondingly engaged in the two positioning grooves 311 for positioning and connection, realizing the accurate positioning of the display bracket 30 on the component mounting shell 20. Thus, the component mounting shell 20 and the display bracket 30 are engaged in the upper end of the door lock back cover 10, forming a stable integrated installation structure. This structure not only realizes the quick assembly and convenient disassembly between modules, but also significantly improves the assembly efficiency of the door lock, reduces the dependence on the accuracy of manual assembly, thereby facilitating mass production, reducing production costs, and improving product consistency and assembly reliability.

[0023] In practical implementation, the front cover 40 of the door lock has several fixed through posts 41 symmetrically arranged on both inner sides, and the rear cover 10 of the door lock has several fixed through holes 12 symmetrically arranged on both sides of its surface. Each of the fixed through holes 12 corresponds to one of the fixed through posts 41, and fasteners are used to pass through the fixed through holes 12 and connect and fix them to the fixed through posts 41, thereby fixing the front cover 40 of the door lock to the lower end of the rear cover 10 of the door lock. The above structural design can achieve quick positioning and fixed connection without special tools. The structure is simple, the assembly is convenient, and the overall firmness after installation is good, which effectively improves the stability and service life of the door lock. It is suitable for mass standardized production and later maintenance and replacement.

[0024] In practical implementation, the bottom of the front cover 40 of the door lock is provided with a mounting base 42 to close the lower opening and protect the internal components. The mounting base 42 has symmetrically protruding positioning protrusions 421 on its rear sides for positioning and engagement with the rear cover 10 of the door lock. The rear cover 10 has symmetrically provided positioning slots 13 on its lower sides for engaging with the positioning protrusions 421. When the front cover 40 is installed at the lower end of the rear cover 10, the two positioning protrusions 421 are respectively inserted into the two positioning slots 13, achieving precise positioning and connection between the front cover 40 and the rear cover 10, avoiding misalignment, and improving installation efficiency and overall structural stability. In use, this structure allows for quick assembly and good positioning of the front cover 40 and the rear cover 10, facilitating worker operation, saving assembly time, and improving the overall structural strength and shock resistance of the door lock. It is particularly suitable for applications requiring frequent disassembly and assembly in mass production and subsequent maintenance scenarios.

[0025] In practical implementation, a buffer rubber plate 50 is installed on the rear surface of the door lock back cover 10. The top of the buffer rubber plate 50 has a rubber plate protrusion 51, which is positioned higher than the top of the door lock back cover 10. This protrusion serves to buffer and limit the contact surface during door lock installation, preventing direct contact damage to the door surface. The surface edge of the door lock back cover 10 has several first rubber plate through holes 14, and the surface edge of the buffer rubber plate 50 has several second rubber plate through holes 52. The first rubber plate through holes 14 and the second rubber plate through holes 52 correspond one-to-one and are connected and fixed by fasteners passing through the first rubber plate through holes 14 and the second rubber plate through holes 52. This allows the buffer rubber plate 50 to be fixedly installed on the rear surface of the door lock back cover 10. During use, the buffer rubber plate 50 effectively reduces vibration or scratching caused by direct contact during door lock installation. The rubber plate protrusion 51 also provides flexible restraint for the door body, improving the overall fit and safety of the installation.

[0026] In practical implementation, the component mounting shell 20 houses a battery 22, and a control motherboard 23 is mounted at its lower end. The surface of the control motherboard 23 has several control buttons 231, and the lower end of the display bracket 30 has several push-buttons 32. Each push-button 32 corresponds to one of the control buttons 231, and the surfaces of the push-buttons 32 are all arc-shaped spherical structures. A display screen 33 is installed inside the display bracket 30. During use, the user presses the push-buttons 32 to trigger the control buttons 231 on the control motherboard 23 below, completing unlocking, setting, and other operation commands. The spherical button design provides a more comfortable pressing experience, improving the accuracy and reliability of user interaction; the display screen 33 simultaneously displays the corresponding operation status and feedback information, enhancing the user-friendliness of human-computer interaction and the intelligence level of the door lock.

[0027] In practical implementation, the front cover 40 of the door lock is equipped with a clutch handle head 43 and a motor assembly 44. When in use, the clutch handle head 43 is used to link with the mechanical structure to realize the manual unlocking function, while the motor assembly 44 is used to perform the electric unlocking action.

[0028] In summary, the door lock back cover 10 has symmetrical mounting side plates 11 on both sides. The component mounting shell 20 is fitted between the upper ends of the mounting side plates 11. The upper ends of the two mounting side plates 11 are symmetrically recessed with connecting slots 111. The upper sides of the display bracket 30 are symmetrically protruding with connecting blocks 31. The two connecting blocks 31 are correspondingly engaged in the two connecting slots 111. The upper sides of the component mounting shell 20 are symmetrically protruding with arc-shaped positioning protrusions 21. The two connecting blocks 31 are positioned opposite each other. One side of each component is recessed with a matching arc-shaped positioning groove 311. The two positioning protrusions 21 are correspondingly engaged in the two positioning grooves 311 for positioning and connection, thereby enabling the component mounting shell 20 and the display bracket 30 to be engaged at the upper end of the door lock back cover 10. The door lock component mounting shell and display bracket of this utility model, which are easy to assemble, can be stably engaged at the upper end of the door lock back cover. Not only is the structure compact and the connection reliable, but the assembly process is also simple and quick, which greatly improves production efficiency and reduces assembly costs.

Claims

1. A door lock that is easy to assemble, characterized in that, It includes a door lock back cover (10), the upper end of which is fitted with a component mounting shell (20), the front end of which is fitted with a display bracket (30), the two sides of which are symmetrically provided with mounting side plates (11), the component mounting shell (20) is fitted between the upper ends of the mounting side plates (11), the upper ends of the mounting side plates (11) are symmetrically recessed with connecting slots (111), and the upper sides of the display bracket (30) are symmetrically provided with connecting slots (111). A connecting block (31) is provided. The size of the connecting slot (111) is larger than the size of the connecting block (31). The connecting block (31) is correspondingly engaged in the connecting slot (111). The upper two sides of the component mounting shell (20) are symmetrically provided with positioning protrusions (21). The side opposite to the connecting block (31) is provided with a positioning groove (311). The positioning protrusions (21) are correspondingly engaged in the positioning groove (311) for positioning and connection.

2. The easy-to-assemble door lock according to claim 1, characterized in that, Both the positioning protrusion (21) and the positioning groove (311) are arc-shaped.

3. The easy-to-assemble door lock according to claim 1, characterized in that, The lower end of the door lock rear cover (10) is equipped with a door lock front cover (40). The inner sides of the door lock front cover (40) are symmetrically provided with a number of fixing pins (41). The two sides of the surface of the door lock rear cover (10) are symmetrically provided with a number of fixing holes (12). The number of fixing holes (12) and the number of fixing pins (41) correspond one to one, and are connected and fixed by fasteners passing through the fixing holes (12) and the fixing pins (41).

4. The easy-to-assemble door lock according to claim 3, characterized in that, The bottom of the front cover (40) of the door lock is provided with a mounting base cover (42). The mounting base cover (42) is provided with symmetrical positioning protrusions (421) on both rear sides. The bottom sides of the rear cover (10) of the door lock are provided with symmetrical positioning slots (13). The positioning protrusions (421) are respectively inserted into the positioning slots (13) to realize the positioning connection between the front cover (40) and the rear cover (10).

5. The easy-to-assemble door lock according to claim 1, characterized in that, The rear surface of the door lock back cover (10) is fitted with a buffer rubber plate (50), and the top of the buffer rubber plate (50) is provided with a rubber plate protrusion (51), which is positioned higher than the top of the door lock back cover (10).

6. The easy-to-assemble door lock according to claim 5, characterized in that, The back cover (10) of the door lock has several first rubber plate through holes (14) on its surface edge, and the buffer rubber plate (50) has several second rubber plate through holes (52) on its surface edge. The several first rubber plate through holes (14) and the several second rubber plate through holes (52) correspond one to one, and are connected and fixed by fasteners passing through the first rubber plate through holes (14) and the second rubber plate through holes (52).

7. The easy-to-assemble door lock according to claim 1, characterized in that, The component mounting housing (20) houses a battery (22), and a control motherboard (23) is mounted on the lower end of the component mounting housing (20). The surface of the control motherboard (23) is provided with several control buttons (231). The lower end of the display bracket (30) is provided with several press buttons (32). The press buttons (32) and the control buttons (231) are in one-to-one correspondence and abut against each other. The display bracket (30) houses a display screen (33).

8. The easy-to-assemble door lock according to claim 7, characterized in that, The surfaces of several of the press buttons (32) are all arc-shaped spherical structures.

9. The easy-to-assemble door lock according to claim 4, characterized in that, The clutch lever head (43) and motor assembly (44) are respectively installed inside the front cover (40) of the door lock.

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