Split type handle door lock

Abstract

The utility model relates to the technical field of door locks, and provides a split type handle door lock which comprises a square core, two handles connected with the two ends of the square core respectively, two fixing bases rotationally arranged at the two ends of the square core in a sleeving mode respectively and a fixing piece used for connecting the two fixing bases to a door, and the handles are used for driving the square core to rotate; the handle comprises a handle body parallel to the door face and a connecting sleeve which is perpendicular to the handle body so as to cover the fixing base, and the handle body is used for being connected with the square core. The method has the beneficial effects that the machining difficulty caused by complex shapes is reduced, and meanwhile, the risk that workers are possibly injured when the workers treat burrs on hidden parts is reduced.

Description

Technical Field

[0001] This application relates to the technical field of door locks, and in particular to a split-handle door lock. Background Technology

[0002] In existing technologies, door handles are typically manufactured using a one-piece casting process. After casting, the door handle requires deburring, finishing, and surface treatment. Burrs appear on multiple surfaces of the door handle after casting, such as gates and runners, parting surfaces, handle edges and protrusions, and small holes and groove edges. These burrs usually need to be manually sanded with sandpaper or removed using specialized sanding equipment.

[0003] Existing door handles are usually L-shaped, and the burrs at the corners may be difficult to clean, affecting the removal efficiency. Furthermore, untreated burrs at the corners may accidentally injure workers' fingers, so further improvements are needed. Utility Model Content

[0004] To address the above problems, this application provides a split-type handle door lock.

[0005] This application provides a split-type handle door lock, which adopts the following technical solution:

[0006] A split-type handle door lock includes a square core, two handles respectively connected to both ends of the square core, two fixed seats respectively rotatably sleeved at both ends of the square core, and a fixing member for connecting the two fixed seats to the door. The handle is used to drive the square core to rotate. The handle includes a handle parallel to the door surface and a connecting sleeve perpendicular to the handle to cover the fixed seat. The handle is used to connect to the square core.

[0007] By adopting the above technical solution, the L-shaped handle is separated into a handle and a connecting sleeve. Compared with the traditional one-piece molding process, the location of burrs can be effectively reduced because each part can be processed separately and targeted deburring treatment can be carried out, thereby improving the surface quality of the product and reducing the operational risks caused by burrs.

[0008] Preferably, the handle includes an inner handle connected to the square core, and a hand-held portion and a connecting portion respectively sleeved on both ends of the inner handle, with the surfaces of the hand-held portion and the connecting portion abutting against each other.

[0009] By adopting the above technical solution, the handle is designed as a split structure consisting of an inner handle, a hand grip, and a connecting part, which allows each part to be manufactured separately and then assembled together. This effectively reduces the burr problem caused by traditional one-piece door handles in complex shape areas (such as corners), and this assembly method can also enhance the strength of the handle.

[0010] Preferably, a fixing layer is provided between the inner handle and the hand-held part or the connecting part.

[0011] By adopting the above technical solution, a fixing layer is added between the inner handle and the hand-held part or connecting part of the split handle door lock, which can enhance the connection stability between the two and avoid loosening or separation due to uneven force during use.

[0012] Preferably, the handle portion has a first slot, the connecting portion has a second slot, and the second slot extends to the side wall near the connecting sleeve; the inner handle includes a second part that slides into the first slot and slides into the second slot, the second part has a clearance space between the side wall away from the connecting sleeve and the inner wall of the second slot, the second part has a first limiting groove near the side wall of the connecting sleeve, the connecting portion is provided with a limiting plate inserted into the first limiting groove, and the first part has a limiting part that slides into the second slot.

[0013] By adopting the above technical solution, the clearance space is designed so that when the second part is inserted into the second slot, the limiting plate is inserted after the limiting plate is inserted, and then the limiting part is driven to be inserted into the second slot. This reduces the possibility of the connecting part sliding off the inner handle during use and improves the structural stability.

[0014] Preferably, the width of the connecting part is smaller than the width of the handle part, the connecting part abuts against the connecting sleeve, and the handle part and the connecting part are flush with the side wall away from the connecting sleeve.

[0015] By adopting the above technical solution, the width of the connecting part is smaller than the width of the handle. At the same time, the side walls of the handle and the connecting part away from the connecting sleeve are flush, so that the connecting part can fit the connecting sleeve better, thereby improving structural stability and reducing space occupation.

[0016] Preferably, the handheld part has anti-slip grooves on both opposite surfaces.

[0017] By adopting the above technical solution, the friction between the hand and the object is increased, thereby reducing the occurrence of slippage.

[0018] Preferably, a fixing plate is coaxially sleeved on the outside of the square core, a limiting block protrudes from the outer peripheral wall of the fixing plate, and a second limiting groove is provided on the inner peripheral wall of the connecting sleeve for the limiting block to be inserted.

[0019] By adopting the above technical solution, the cooperation between the limiting block and the second limiting groove effectively prevents the connecting sleeve from rotating or shifting unnecessarily relative to the fixed plate, thereby improving the stability of the entire door lock structure.

[0020] Preferably, the fixing plate is provided with a fixing rod, the length direction of the fixing rod is parallel to the length of the square core, the fixing rod passes through the connecting sleeve, the inner handle has a third slot for inserting the fixing rod, and the fixing rod and the square core are located on both sides of the limiting part.

[0021] By adopting the above technical solution, a fixing rod is added to the split handle door lock, and its length direction is set to be parallel to the length direction of the square core, so that the fixing rod can stably pass through the connecting sleeve and cooperate with the third slot on the inner handle, thereby enhancing the stability of the entire structure.

[0022] Preferably, the connecting part has a connecting rod that protrudes and connects to the outer peripheral wall of the connecting sleeve.

[0023] By adopting the above technical solution, a more stable connection is achieved between the connecting part and the connecting sleeve by adding a connecting rod.

[0024] In summary, this utility model has the following beneficial effects:

[0025] 1. The split design of the handle into a handle and a connecting sleeve ensures that burrs only appear in the edge area of ​​the parts, making it easier for workers to remove burrs quickly and efficiently, significantly reducing labor costs and improving production efficiency;

[0026] 2. The split structure avoids the problem of difficult-to-clean burrs at L-shaped corners in traditional one-piece molding processes, effectively reducing the processing difficulty caused by complex shapes, and reducing the risk of workers being injured when dealing with burrs in hidden areas.

[0027] 3. The modular design between the handle and the connecting sleeve enhances assembly flexibility, simplifies subsequent maintenance and replacement processes, and further improves the practicality and reliability of the product. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is an exploded view of the handle in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the inner handle and the connecting part in the embodiment of this application;

[0031] Figure 4 This is a cross-sectional view of the handle in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the structure of the fixed sleeve in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the structure of the fixed sleeve and the connecting sleeve in the embodiments of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Square core; 11. Dial wheel; 12. Fixing sleeve; 121. First bolt; 122. Second bolt; 123. Fixing plate; 124. Limiting block; 125. Fixing rod; 126. Third bolt; 2. Handle; 3. Fixing base; 4. Fixing component; 5. Handle; 51. Inner handle; 511. First part; 512. Second part; 513. First limiting groove; 514. Limiting part; 515. First threaded hole; 516. Third slot; 52. Handheld part; 521. Anti-slip groove; 522. First slot; 53. Connecting part; 531. Second slot; 532. Limiting plate; 533. Connecting rod; 6. Connecting sleeve; 61. Second limiting groove; 7. Clearance space. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail below.

[0036] This application discloses a split-handle door lock.

[0037] Example:

[0038] A type of split-handle door lock, see reference Figure 1 The device includes a square core 1, two handles 2 respectively connected to both ends of the square core 1, two fixing seats 3 respectively rotatably sleeved on both ends of the square core 1, and a fastener 4 for connecting the two fixing seats 3 to the door. Specifically, the fastener 4 consists of a bolt that passes through one of the fixing seats 3 and a threaded sleeve that is fixedly connected to the other fixing seat 3. The bolt is threadedly connected to the threaded sleeve, thereby installing the fixing seat 3 on the door.

[0039] Reference Figure 1 , Figure 2 The handle 2 is used to rotate the square core 1. Specifically, the handle 2 includes a handle 5 parallel to the door surface and a connecting sleeve 6 perpendicular to the handle 5 to cover the fixed base 3. The handle 5 includes an inner handle 51 connected to the square core 1 and a hand-held portion 52 and a connecting portion 53 respectively slidably sleeved at both ends of the inner handle 51. The surfaces of the hand-held portion 52 and the connecting portion 53 abut against each other. In this embodiment, the width of the connecting portion 53 is smaller than the width of the hand-held portion 52. The connecting portion 53 abuts against the connecting sleeve 6, and the hand-held portion 52 and the connecting portion 53 are flush with the side wall away from the connecting sleeve 6.

[0040] Furthermore, anti-slip grooves 521 are provided on both opposite surfaces of the hand-held part 52 to reduce the possibility of hand slippage.

[0041] Reference Figure 2 , Figure 3 Specifically, the handheld part 52 has a first slot 522, and the connecting part 53 has a second slot 531, which extends to the side wall near the connecting sleeve 6.

[0042] Reference Figure 3 , Figure 4 In this regard, the inner handle 51 includes a first part 511 that is slidably inserted into the hand grip 52 and a second part 512 that is slidably inserted into the connecting part 53. A clearance space 7 is left between the side wall of the second part 512 away from the connecting sleeve 6 and the inner wall of the second slot 531. A first limiting groove 513 is provided on the side wall of the second part 512 near the connecting sleeve 6. A limiting plate 532 inserted into the first limiting groove 513 is provided on the connecting part 53. A limiting part 514 protrudes from the first part 511 and is slidably inserted into the second slot 531.

[0043] It should be noted that, in order to improve the connection strength between the inner handle 51 and the hand grip 52 or the connecting part 53, an additional fixing layer (not shown in the figure) may be provided. The fixing layer is specifically glue or an adhesive with adhesive properties.

[0044] Reference Figure 2 , Figure 5 In the connection between the inner handle 51 and the square core 1, the square core 1 is coaxially fitted with a dial wheel 11, which is rotatably mounted on the fixed seat 3. The dial wheel 11 is coaxially fitted with a fixed sleeve 12, and the fixed sleeve 12 is threaded with a first bolt 121 along its own axis. The inner handle 51 has a first threaded hole 515 on its side wall near the first bolt 121, and the first bolt 121 is threaded into the first threaded hole 515, thereby installing the inner handle 51 and the square core 1.

[0045] Reference Figure 5 , Figure 6 The fixed sleeve 12 is detachably connected to the dial wheel 11. A second bolt 122 is threaded through the side wall of the fixed sleeve 12. The second bolt 122 can be threaded to the square core 1, or a positioning post can be protruded from the end face of the second bolt 122 near the fixed sleeve. The square core 1 has a positioning hole for the positioning post to slide and insert, so as to fix the fixed sleeve 12 and the square core 1. It should be noted that since the connecting sleeve 6 usually covers the dial wheel 11 and other components, when the fixed sleeve 12 and the square core 1 are connected by the second bolt 122, a through hole needs to be opened on the outer peripheral wall of the connecting sleeve 6 near the handle part 52 for the second bolt 122 to pass through.

[0046] Specifically, for the connection of the connecting sleeve 6, a fixing plate 123 is fixedly sleeved on the outside of the fixing sleeve 12. The outer peripheral wall of the fixing plate 123 protrudes with a limiting block 124, and the inner peripheral wall of the connecting sleeve 6 is provided with a second limiting groove 61 for the limiting block 124 to be inserted.

[0047] Furthermore, to improve the fixing effect of the inner handle 51, in this embodiment, the fixing plate 123 is provided with a fixing rod 125. The length direction of the fixing rod 125 is parallel to the length of the square core 1. Specifically, for the connection between the fixing rod 125 and the fixing plate 123, the fixing plate 123 is threaded with a third bolt 126. At this time, the fixing rod 125 is a threaded sleeve to be threadedly connected with the third bolt 126. The fixing rod 125 passes through the connecting sleeve 6. The inner handle 51 is provided with a third slot 516 for the fixing rod 125 to be inserted. The fixing rod 125 and the square core 1 are located on both sides of the limiting part 514, which can also limit the possibility of relative slippage between the connecting part 53 and the inner handle 51.

[0048] Back Figure 2 Furthermore, the connecting part 53 protrudes with a connecting rod 533 that connects to the outer peripheral wall of the connecting sleeve 6, and the connecting rod 533 can extend to cover the second limiting groove 61.

[0049] The implementation principle of a split-type handle door lock according to an embodiment of this application is as follows: by splitting the L-shaped handle 2 into a handle 5 and a connecting sleeve 6, compared with the traditional one-piece molding process, the location of burrs can be effectively reduced because each part can be processed separately and targeted deburring treatment can be carried out, thereby improving the surface quality of the product and reducing the operational risks caused by burrs.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A split-type handle door lock, characterized in that: The device includes a square core (1), two handles (2) connected to the two ends of the square core (1), two fixed seats (3) rotatably fitted to the two ends of the square core (1), and a fastener (4) for connecting the two fixed seats (3) to the door. The handles (2) are used to drive the square core (1) to rotate. The handles (2) include a handle (5) parallel to the door surface and a connecting sleeve (6) perpendicular to the handle (5) to cover the fixed seat (3). The handles (5) are used to connect to the square core (1).

2. A split-type handle door lock according to claim 1, characterized in that: The handle (5) includes an inner handle (51) connected to the square core (1) and a hand-held part (52) and a connecting part (53) respectively sleeved on both ends of the inner handle (51), with the surfaces of the hand-held part (52) and the connecting part (53) abutting each other.

3. A split-type handle door lock according to claim 2, characterized in that: A fixing layer is provided between the inner handle (51) and the hand-held part (52) or the connecting part (53).

4. A split-type handle door lock according to claim 2, characterized in that: The handheld part (52) has a first slot (522), and the connecting part (53) has a second slot (531). The second slot (531) extends to the side wall near the connecting sleeve (6). The inner handle (51) includes a first part (511) that slides into the first slot (522) and a second part (512) that slides into the second slot (531). The second part (512) has a clearance space (7) between the side wall away from the connecting sleeve (6) and the inner wall of the second slot (531). The second part (512) has a first limiting groove (513) near the side wall of the connecting sleeve (6). The connecting part (53) is provided with a limiting plate (532) inserted into the first limiting groove (513). The first part (511) has a limiting part (514) that slides into the second slot (531).

5. A split-type handle door lock according to claim 2, characterized in that: The width of the connecting part (53) is smaller than the width of the handheld part (52). The connecting part (53) abuts against the connecting sleeve (6). The handheld part (52) and the connecting part (53) are flush with the side wall of the connecting sleeve (6).

6. A split-type handle door lock according to claim 2, characterized in that: The handheld part (52) has anti-slip grooves (521) on both opposite surfaces.

7. A split-type handle door lock according to claim 4, characterized in that: The square core (1) is coaxially fitted with a fixing plate (123), and the outer peripheral wall of the fixing plate (123) protrudes with a limiting block (124). The inner peripheral wall of the connecting sleeve (6) is provided with a second limiting groove (61) for the limiting block (124) to be inserted.

8. A split-type handle door lock according to claim 7, characterized in that: The fixing plate (123) is provided with a fixing rod (125), the length direction of the fixing rod (125) is parallel to the length of the square core (1), the fixing rod (125) passes through the connecting sleeve (6), the inner handle (51) is provided with a third slot (516) for the fixing rod (125) to be inserted, and the fixing rod (125) and the square core (1) are located on both sides of the limiting part (514).

9. A split-type handle door lock according to claim 2, characterized in that: The connecting part (53) has a connecting rod (533) protruding from it and connected to the outer peripheral wall of the connecting sleeve (6).

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