A lever handle door lock

Abstract

The utility model discloses a handle door lock, including lock tongue, install the outer lock body and the inner lock body of lock tongue both sides, the outer lock body includes outer handle, installs the lock head in the outer handle, installs the outer cover and the outer lock cover support outside the outer handle, and install the rotating assembly in the outer lock cover support, the lock tongue includes square and the bumper, and the bumper is sleeved in the square, and the both ends of bumper project outside the square, and the rear end of bumper is connected with the inner lock body, and the front end of bumper is connected with the rotating assembly, and the rear end of outer handle is connected with the rotating assembly, and the torsional spring is installed in the outer lock cover support, and one end of torsional spring leans in the inner wall of outer lock cover support, and the other end of torsional spring leans on the rotating assembly, the central shaft of lock head is parallel with the pivot of bumper, and lock head is connected with the bumper through an eccentric component. Through eccentric component makes the handle door lock of same outer size to be applicable to different size lock head, and need not open mould many times, has saved design cost and production cost greatly.

Description

Technical Field

[0001] This utility model relates to a door lock, and more particularly to a lever handle door lock. Background Technology

[0002] Existing lever handle door locks include a bolt, an outer lock body and an inner lock body installed on both sides of the bolt. The outer lock body includes an outer handle, a lock cylinder installed inside the outer handle, an outer cover and an outer lock cover bracket installed outside the outer handle, and a rotating assembly installed inside the outer lock cover bracket. The bolt includes a square tube and a safety bar. The safety bar is fitted inside the square tube, with both ends extending out of the square tube. The rear end of the safety bar is connected to the inner lock body, and the front end of the safety bar is connected to the rotating assembly. The rear end of the outer handle is connected to the rotating assembly. A torsion spring is installed inside the outer lock cover bracket. One end of the torsion spring abuts against the inner wall of the outer lock cover bracket, and the other end of the torsion spring abuts against the rotating assembly. The slot of the lock cylinder is in a straight line with the safety bar, and the interior of the lock cylinder is connected to the safety bar. Because different widths of keys require different lock head sizes, the external handle dimensions of this type of lever handle lock also differ depending on the key width. Furthermore, different countries have different sizes of universal keys (for example, the standard key for lever handle locks in my country and the United States is 8.5mm, while some non-standard keys are 7mm). Therefore, lever handle locks exported to different countries require separate design and mold making for their external lock bodies, which greatly increases design and production costs. Utility Model Content

[0003] This utility model provides a lever handle door lock to solve the problem in the prior art that lever handle door locks exported to different countries need to be designed separately and use different sizes of outer lock bodies.

[0004] The technical solution of this utility model is implemented as follows:

[0005] The purpose of this utility model is to provide a lever handle door lock, including a bolt, an outer lock body and an inner lock body installed on both sides of the bolt, the outer lock body including an outer handle, a lock head installed inside the outer handle, an outer cover and an outer lock cover support installed outside the outer handle, and a rotating assembly installed inside the outer lock cover support, the bolt including a square tube and a safety bar, the safety bar being fitted inside the square tube, both ends of the safety bar extending outside the square tube, the rear end of the safety bar being connected to the inner lock body, the front end of the safety bar being connected to the rotating assembly, the rear end of the outer handle being connected to the rotating assembly, a torsion spring being installed inside the outer lock cover support, one end of the torsion spring abutting against the inner wall of the outer lock cover support, and the other end of the torsion spring abutting against the rotating assembly, characterized in that: the central axis of the lock head is parallel to the rotation axis of the safety bar, and the lock head is connected to the safety bar through an eccentric assembly.

[0006] The aforementioned eccentric assembly includes a toggle piece, a toggle block, and a first compression spring. The center of the inner side of the toggle block is provided with a fixing groove, and the end of the safety bar is inserted into the fixing groove. The edge of the outer surface of the toggle block is provided with a slot. The toggle piece is installed on the outer side of the toggle block. A locking block protrudes axially from one side of the toggle piece towards the toggle block and is locked in the slot. The center of the toggle piece is provided with a flat hole. The "I" groove of the lock head is located above the flat hole mounting hole and communicates with the flat hole. The upper end of the first compression spring abuts against the inner side of the toggle block, and the lower end of the first compression spring abuts against the rotating assembly.

[0007] The inner side of the aforementioned actuating block is provided with an annular groove around the fixed groove, and the first compression spring is installed in the annular groove, with the upper end of the first compression spring abutting against the bottom of the annular groove.

[0008] The diameter of the aforementioned actuating piece is smaller than the diameter of the actuating block.

[0009] The aforementioned rotating assembly includes a washer, a switch block, and a rotating frame sequentially mounted on the safety bar from the outside to the inside. The rotating frame is snapped into the end of the square tube. The switch block has a mounting hole in the center, and the front end of the safety bar is fixed in the mounting hole. The outer lock cover has two protrusions axially protruding towards the lock tongue. The washer has two first slots around the switch block. The rotating frame has a second slot corresponding to the first slots. The protrusions are snapped into the first and second slots. The rotating frame has a positioning block protruding from its edge towards the washer. The end of the torsion spring abuts against the side of the positioning block, and the lower end of the first compression spring abuts against the washer.

[0010] The aforementioned rotating assembly also includes a second compression spring. The inner side of the switch block is provided with a mounting groove, the mounting hole is located in the mounting groove, the second compression spring is installed in the mounting groove, one end of the second compression spring abuts against the rotating frame, and the other end of the second compression spring abuts against the bottom of the mounting groove.

[0011] The aforementioned washer and the switch block are provided with several ball bearings.

[0012] The aforementioned eccentric component is a gear set consisting of at least two gears.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. The aforementioned lever handle door lock includes a bolt, an outer lock body and an inner lock body installed on both sides of the bolt. The outer lock body includes an outer handle, a lock cylinder installed inside the outer handle, an outer cover and an outer lock cover support installed outside the outer handle, and a rotating assembly installed inside the outer lock cover support. The bolt includes a square tube and a safety bar. The safety bar is fitted inside the square tube, with both ends extending outside the square tube. The rear end of the safety bar is connected to the inner lock body, and the front end is connected to the rotating assembly. The rear end of the outer handle is connected to the rotating assembly. A torsion spring is installed inside the outer lock cover support, with one end of the torsion spring abutting against the inner wall of the outer lock cover support and the other end abutting against the rotating assembly. The central axis of the lock cylinder is parallel to the rotation axis of the safety bar. The lock cylinder is connected to the safety bar through an eccentric assembly. The eccentric assembly ensures that the central axis of the lock cylinder and the rotation axis of the safety bar are not necessarily on the same straight line. Lever handle door locks of the same external dimensions can be used with lock cylinders of different sizes and keys of different widths without the need for multiple mold openings, greatly saving design and production costs.

[0015] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the lever handle door lock provided in an embodiment of this utility model;

[0017] Figure 2 This is a side view of a lever handle door lock;

[0018] Figure 3 for Figure 2 AA cross-sectional view;

[0019] Figure 4 for Figure 3 Enlarged view of point B;

[0020] Figure 5 An exploded view of a lever handle door lock;

[0021] Figure 6 This is an exploded view of the outer lock body in a lever handle door lock;

[0022] Figure 7 This is an exploded view of the outer locking body from another angle.

[0023] Figure 8 An exploded view of the eccentric component in a lever handle door lock;

[0024] Figure 9 This is an exploded view of the rotating assembly in a lever handle door lock. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1 to 9 As shown, this embodiment provides a lever handle door lock, including a bolt 2, an outer lock body 1 and an inner lock body 3 installed on both sides of the bolt 2. The outer lock body 1 includes an outer handle 11, a lock cylinder 12 installed inside the outer handle 11, an outer cover 131 and an outer lock cover support 132 installed outside the outer handle 11, and a rotating assembly 16 installed inside the outer lock cover support 132. The bolt 2 includes a square tube 21 and a safety bar 22. The safety bar 22 is fitted inside the square tube 21, and both ends of the safety bar 22 extend out of the square tube 21. Outside of the passage 21, the rear end of the safety bar 22 is connected to the inner lock body 3, the front end of the safety bar 22 is connected to the rotating assembly 16, the rear end of the outer handle 11 is connected to the rotating assembly 16, and a torsion spring 14 is installed inside the outer lock cover 132. One end of the torsion spring 14 abuts against the inner wall of the outer lock cover 132, and the other end of the torsion spring 14 abuts against the rotating assembly 16. The lock head 12 is characterized in that the central axis of the lock head 12 is parallel to the rotation axis of the safety bar 22, and the lock head 12 is connected to the safety bar 22 through an eccentric assembly 15.

[0027] The lever handle door lock described in this embodiment uses an eccentric component 15 to ensure that the central axis of the lock head 12 and the rotating axis of the safety bar 22 are not on the same straight line. The lever handle door lock of the same external size can be used for lock heads of different sizes and keys of different widths without the need for multiple mold openings, which greatly saves design and production costs.

[0028] The aforementioned eccentric assembly 15 includes a toggle piece 151, a toggle block 152, and a first compression spring 153. The center of the inner side of the toggle block 152 is provided with a fixing groove 1521, and the end of the safety bar 22 is inserted into the fixing groove 1521. The edge of the outer surface of the toggle block 152 is provided with a slot 1522. The toggle piece 151 is installed on the outer side of the toggle block 152. A locking block 1511 protrudes axially from one side of the toggle piece 151 toward the toggle block 152. The locking block 1511 is locked in the slot 1522. The center of the toggle piece 151 is provided with a flat hole 1512. The slot 121 of the lock head 12 is located above the flat hole 1512 and communicates with the flat hole 1512. The upper end of the first compression spring 153 abuts against the inner side of the toggle block 152, and the lower end of the first compression spring 153 abuts against the rotating assembly 16. When the lock head 12 rotates to a certain angle, the slot 121 aligns with the flat hole 1512. The eccentric assembly 15 has a simple structure, and the first compression spring 153 can eliminate the thickness tolerance between the actuating plate 151 and the actuating block 152.

[0029] The inner side of the aforementioned actuating block 152 has an annular groove 1523 surrounding the fixing groove 1521. The first compression spring 153 is installed in the annular groove 1523, and the upper end of the first compression spring 153 abuts against the bottom of the annular groove 1523. This saves space.

[0030] The diameter of the aforementioned actuating piece 151 is smaller than the diameter of the actuating block 152. The lever handle door lock described in this invention is suitable for keys with smaller widths.

[0031] The aforementioned rotating assembly 16 includes a washer 161, a switch block 162, and a rotating frame 163, which are sequentially mounted on the safety bar 22 from the outside to the inside. The rotating frame 163 is snapped into the end of the square tube 21. The switch block 162 has a mounting hole 1621 in the center, and the front end of the safety bar 22 is fixed in the mounting hole 1621. The outer lock cover 132 has two protrusions 1321 protruding axially towards the lock tongue 2. The washer 161 has two first slots 1611 around the switch block 162. The rotating frame 163 has a second slot 1631 corresponding to the first slots 1611. The protrusions 1321 are snapped into the first slots 1611 and the second slots 1631. A positioning block 1632 protrudes from the edge of the rotating frame 163 towards the washer 161. The end of the torsion spring 14 abuts against the side of the positioning block 1632, and the lower end of the first compression spring 153 abuts against the washer 161. The rotating assembly 16 has a simple structure.

[0032] The aforementioned rotating assembly 16 further includes a second compression spring 164. The inner side of the switch block 162 is provided with a mounting groove 1622, and the mounting hole 1621 is located within the mounting groove 1622. The second compression spring 164 is installed within the mounting groove 1622, with one end of the second compression spring 164 abutting against the rotating frame 163 and the other end abutting against the bottom of the mounting groove 1622. The second compression spring 164 can eliminate tolerances between the rotating assembly 16 and door panels of different thicknesses.

[0033] A plurality of balls 165 are provided between the washer 161 and the switch block 162.

[0034] As an option, the aforementioned eccentric component 15 is a gear set consisting of at least two gears.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lever handle door lock, comprising a bolt (2), an outer lock body (1) and an inner lock body (3) installed on both sides of the bolt (2), the outer lock body (1) comprising an outer handle (11), a lock cylinder (12) installed inside the outer handle (11), an outer cover (131) and an outer lock cover support (132) installed outside the outer handle (11), and a rotating assembly (16) installed inside the outer lock cover support (132), the bolt (2) comprising a square tube (21) and a safety bar (22), the safety bar (22) The safety bar (22) is installed inside the square tube (21), with both ends of the safety bar (22) extending out of the square tube (21). The rear end of the safety bar (22) is connected to the inner lock body (3), and the front end of the safety bar (22) is connected to the rotating assembly (16). The rear end of the outer handle (11) is connected to the rotating assembly (16). A torsion spring (14) is installed inside the outer lock cover (132). One end of the torsion spring (14) abuts against the inner wall of the outer lock cover (132), and the other end of the torsion spring (14) abuts against the rotating assembly (16). The characteristic of the design is that: The central axis of the lock head (12) is parallel to the rotation axis of the safety bar (22), and the lock head (12) is connected to the safety bar (22) through an eccentric component (15).

2. A lever handle door lock according to claim 1, characterized in that: The eccentric assembly (15) includes a toggle piece (151), a toggle block (152), and a first compression spring (153). The center of the toggle piece (151) is aligned with the central axis of the lock head (12), and the center of the toggle block (152) is aligned with the pivot of the safety bar (22). A fixing groove (1521) is provided at the center of the inner side of the toggle block (152), and the end of the safety bar (22) is inserted into the fixing groove (1521). A retaining groove (1522) is provided on the edge of the outer surface of the toggle block (152). A locking block (1511) protrudes axially from one side of the plate (151) toward the actuating block (152). The locking block (1511) is locked in the slot (1522). A flat hole (1512) is provided in the center of the actuating plate (151). The "I" groove (121) of the lock head (12) is located above the flat hole (1512) and communicates with the flat hole (1512). The upper end of the first compression spring (153) abuts against the inner side of the actuating block (152), and the lower end of the first compression spring (153) abuts against the rotating assembly (16).

3. A lever handle door lock according to claim 2, characterized in that: The inner side of the actuating block (152) is provided with an annular groove (1523) around the fixed groove (1521). The first compression spring (153) is installed in the annular groove (1523), and the upper end of the first compression spring (153) abuts against the bottom of the annular groove (1523).

4. A lever handle door lock according to claim 2 or 3, characterized in that: The diameter of the toggle piece (151) is smaller than the diameter of the toggle block (152).

5. A lever handle door lock according to claim 4, characterized in that: The rotating assembly (16) includes a washer (161), a switch block (162), and a rotating bracket (163) sequentially mounted on the safety bar (22) from the outside to the inside. The rotating bracket (163) is snapped onto the end of the square tube (21). The switch block (162) has a mounting hole (1621) in the center. The front end of the safety bar (22) is fixed in the mounting hole (1621). The outer lock cover bracket (132) has two protrusions (1321) axially protruding towards the lock tongue (2). The washer (161) is mounted on the switch block (162). 62) Two first slots (1611) are provided on the periphery, and the rotating frame (163) is provided with a second slot (1631) corresponding to the first slots (1611). The protrusion (1321) is inserted into the first slots (1611) and the second slots (1631). The edge of the rotating frame (163) protrudes towards the washer (161) with a positioning block (1632). The end of the torsion spring (14) abuts against the side of the positioning block (1632), and the lower end of the first compression spring (153) abuts against the washer (161).

6. A lever handle door lock according to claim 5, characterized in that: The rotating assembly (16) also includes a second compression spring (164). The inner side of the switch block (162) is provided with a mounting groove (1622). The mounting hole (1621) is located in the mounting groove (1622). The second compression spring (164) is installed in the mounting groove (1622). One end of the second compression spring (164) abuts against the rotating frame (163), and the other end of the second compression spring (164) abuts against the bottom of the mounting groove (1622).

7. A lever handle door lock according to claim 6, characterized in that: A plurality of balls (165) are provided between the washer (161) and the switch block (162).

8. A lever handle door lock according to claim 1, characterized in that: The eccentric component (15) is a gear set consisting of at least two gears.

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