Door handle structure and door lock thereof

Abstract

The utility model relates to the technical field of locks, in particular to a door handle structure and a door lock thereof, the door handle structure comprises a shell, a clutch assembly, a reinforcing plate, a supporting plate, an actuating rod and a handle, a fixing column is riveted on the shell, the clutch assembly is installed in the shell and limited by the fixing column, and the reinforcing plate is arranged on the shell. The reinforcing plate is arranged on the clutch assembly at a certain interval, and the supporting plate is connected with the fixing columns through screws and tightly presses the reinforcing plate. The actuating rod penetrates through the panel, the supporting plate and the reinforcing plate to extend towards the clutch assembly and is in transmission connection with the clutch assembly, and the panel closes the shell. According to the door handle structure, the supporting plate, the reinforcing plate and the fixing column serve as stress supporting carriers, when the handle is driven, due to the existence of the gap, acting force avoids the clutch shell, and pulling force or pressure of the handle is finally transmitted to the door plate through the supporting plate, the reinforcing plate and the fixing column, so that the situation that the reset effect fails due to stress deformation of the clutch shell is avoided; and the handle can reset normally.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and in particular relates to a door handle structure and a door lock thereof. Background Art

[0002] Common door locks currently on the market generally consist of a lock core and a door handle. The lock core is usually installed inside the door panel, while the door handle is installed outside the door panel. The door handle generally consists of a housing, a handle, and a clutch. The clutch is fixed inside the housing and connected to the clutch through the handle. When the clutch is engaged, pressing down or pulling up on the handle can unlock the door. When released, the handle rebounds to its original position due to the reset action of the clutch, and the clutch is disengaged at the same time.

[0003] The clutch shell of the prior art is generally a sheet metal part, which is relatively soft, and the handle is directly in contact with the surface of the clutch shell when installed. The force of the handle will directly act on the clutch shell. When facing large pulling force or large pressure of the handle, especially when the force reaches more than 1600N, it is easy to cause deformation of the clutch shell, resulting in failure of the clutch reset function and the handle cannot rebound to its original position.

[0004] Therefore, in order to solve the above technical problems, the present invention provides a door handle structure, which adopts a structure in which a reinforcing plate and a support plate are assembled with a clutch assembly to transmit the force of the handle to the shell to solve the above problems. Utility Model Content

[0005] In view of the above problems existing in the prior art, the present invention provides a door handle structure, comprising:

[0006] a housing, on which a panel is fastened and mounted to form a receiving cavity; a plurality of fixing posts are provided on the inner bottom surface of the housing, wherein the upper ends of the fixing posts extend toward the panel and the upper ends of the fixing posts are formed as threaded holes;

[0007] A clutch assembly, wherein the clutch assembly is mounted in the accommodating cavity, an output end of the clutch assembly is externally disposed on the housing, the fixing post passes through the clutch assembly, the fixing post limits the installation of the clutch assembly, and an upper end surface of the fixing post is higher than an upper surface of the clutch assembly;

[0008] a reinforcing plate, the reinforcing plate being disposed on the upper surface of the clutch assembly, the upper end surface of the fixing column being in contact with the bottom surface of the reinforcing plate, a gap being formed between the bottom surface of the reinforcing plate and the upper surface of the clutch assembly, the gap preventing the reinforcing plate from contacting the clutch assembly;

[0009] A support plate, the support plate being arranged on the upper surface of the reinforcing plate, the support plate being fastened to the fixing column by screws and pressing the reinforcing plate;

[0010] an actuating rod, the actuating rod passing through the panel, the support plate and the reinforcing plate and being in transmission connection with the clutch assembly, wherein when the clutch assembly is in an engaged state, the actuating rod is driven to rotate the output end to unlock;

[0011] A handle is provided on the outside of the panel, the handle is fastened to the actuating rod, and the actuating rod can be driven by driving the handle.

[0012] Optionally, the reinforcing plate is made of S50C or 65Mn steel, and the hardness of the reinforcing plate is enhanced through a heat treatment process.

[0013] Optionally, the size of the gap is 2-5 mm ± 0.5 mm.

[0014] Optionally, the bottom end of the fixing column is riveted to the bottom of the shell, the clutch assembly is provided with a plurality of through holes, the fixing column passes through the through holes, the through holes position the clutch assembly, and the fixing column limits the clutch assembly from rotating with the handle.

[0015] Optionally, the clutch assembly is provided with a first mounting hole, the actuating rod is adapted to be mounted in the first mounting hole, and when the clutch assembly is in an engaged state, the actuating rod rotates in the first mounting hole to drive the output end to rotate and unlock.

[0016] Optionally, the reinforcing plate is provided with a first through hole, the supporting plate is provided with a second through hole, the panel is provided with a third through hole, the actuating rod passes through the first through hole, the second through hole and the third through hole in sequence, and the outer end of the actuating rod extends toward the outside of the third through hole.

[0017] Optionally, the outer end of the actuating rod is formed as a rectangular clamping portion, the front end of the handle is formed as a clamping groove, the clamping portion is adapted to be installed in the clamping groove, and the actuating rod is fastened to the handle by a fastening bolt.

[0018] Optionally, the support plate is formed with flanges, and the reinforcing plate is placed between the flanges; and / or,

[0019] The reinforcing plate is provided with a first assembly hole, the supporting plate is provided with a second assembly hole, and the screw passes through the second assembly hole and the first assembly hole to be threadedly fastened to the fixing column.

[0020] Optionally, the handle is provided with an identification module, the identification module is fixedly mounted in the mounting slot, the identification module is electrically connected to the clutch assembly, and the identification module controls the clutch assembly to be electrically engaged.

[0021] In addition, the utility model also provides a door lock using the door handle structure.

[0022] The technical solution of the utility model has the following advantages or beneficial effects:

[0023] The door handle structure provided by the present invention includes a housing, a clutch assembly, a reinforcement plate, a support plate, an actuating rod and a handle. A fixing column is riveted on the housing. The clutch assembly is installed in the housing and limited by the fixing column. The reinforcement plate is arranged above the clutch assembly at a certain distance. The support plate is connected to the fixing column by screws and presses the reinforcement plate. The actuating rod extends through the panel, the support plate and the reinforcement plate toward the clutch assembly and is transmission-connected to the clutch assembly. The panel closes the housing. The door handle structure uses the support plate, the reinforcement plate and the fixing column as a force-bearing support carrier. When the handle is driven, due to the existence of the gap, the force avoids the clutch housing. The handle pull or pressure is finally transmitted to the door panel through the support plate, the reinforcement plate and the fixing column, avoiding the clutch housing from deforming due to force and causing the reset action to fail, so that the handle can be reset normally. The structure is simple, the cost is low, and it has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The embodiments of the present invention will be described more fully with reference to the accompanying drawings, which are for illustration and description only and are not intended to limit the scope of the present invention.

[0025] Figure 1 This is a three-dimensional schematic diagram of the door handle structure of the present invention;

[0026] Figure 2 This is an exploded schematic diagram of the door handle structure of the present invention;

[0027] Figure 3 It is a partial cross-sectional schematic diagram of the door handle structure of the present utility model;

[0028] Figure 4 This is a structural schematic diagram of the door handle structure of the present invention being assembled on a door panel.

[0029] Illustration:

[0030] 1. Housing; 2. Clutch assembly; 3. Reinforcement plate; 4. Support plate; 5. Actuation rod; 6. Handle;

[0031] 7. Fixing column; 8. Gap; 9. Panel; 10. Accommodation cavity; 11. Output terminal; 12. Through hole;

[0032] 13. Flanged edge; 14. First assembly hole; 15. Second assembly hole; 16. Clamping portion; 17. First through hole; 18. Second through hole; 19. Third through hole; 20. First mounting hole; 21. Clamping groove; 22. Identification module; 23. Fastening bolt; 24. Mounting groove; 25. Door panel. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0035] In the description of this utility model, unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0036] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly indicate the number, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0037] like Figure 1-4As shown, an embodiment of the present invention provides a door handle structure comprising a housing 1, a clutch assembly 2, a reinforcement plate 3, a support plate 4, an actuating rod 5, and a handle 6. A fixing post 7 is riveted to the housing 1. The clutch assembly 2 is mounted within the housing 1 and restrained by the fixing post 7. The reinforcement plate 3 is positioned above the clutch assembly 2 with a gap 8. The support plate 4 is screwed to the fixing post 7 and compresses the reinforcement plate 3. The actuating rod 5 extends through a panel 9, the support plate 4, and the reinforcement plate 3 toward the clutch assembly 2 and is in transmission connection with the clutch assembly 2. The panel 9 encloses the housing 1. The door handle structure utilizes the support plate 4, reinforcement plate 3, and fixing post 7 as a force-bearing support. When the handle 6 is actuated, the force avoids the clutch housing due to the gap 8. The tension or pressure of the handle 6 is ultimately transmitted to the door panel 25 through the support plate 4, reinforcement plate 3, and fixing post 7. This prevents the clutch housing from deforming due to force, resulting in failure of the reset function, and allows the handle 6 to reset normally. The door handle structure has a simple structure, low cost, and broad application prospects.

[0038] Specifically, in this embodiment, the housing 1 is a rectangular sheet metal member with one side open. The open side of the housing 1 is provided with a panel 9, a steel plate member secured to the housing 1 by screws. The housing 1 and panel 9 enclose a cavity 10 for accommodating the clutch assembly 2. Four fixing posts 7 are evenly spaced along the inner bottom surface of the housing 1. The upper ends of the fixing posts 7 extend toward the panel 9 and have threaded holes formed at their upper ends. The fixing posts 7 are used to accommodate the clutch assembly 2 and to position the clutch. The threaded holes are adapted to accommodate screws that connect the support plate 4 and the reinforcement plate 3 to the fixing posts 7. Preferably, the bottom ends of the fixing posts 7 are riveted to the bottom of the housing 1, so that forces acting on the fixing posts 7 are transmitted to the housing 1. In practice, the housing 1 of the door handle structure is typically secured to a door panel 25 by screws. In this way, forces acting on the fixing posts 7 are transmitted through the housing 1 to the door panel 25.

[0039] Furthermore, in this embodiment, the clutch assembly 2 is used to unlock and reset the handle 6 of the door lock structure. Specifically, the clutch assembly 2 is stably mounted within the accommodating cavity 10. The fixing post 7 passes through the clutch assembly 2. The output end 11 of the clutch assembly 2 is externally disposed on the housing 1. The output end 11 is configured for transmission connection to the lock core component. When the clutch assembly 2 is engaged, rotating the output end 11 through an external force can cause the lock core component's lock tongue to retract, thereby achieving the unlocking action. Obviously, the external force is provided by the handle 6. When the external force is removed, the clutch assembly 2 returns to the disengaged state, and the handle 6 is reset under the reset force of the clutch assembly 2. Four fixing posts 7 pass through the clutch assembly 2. The fixing posts 7 limit the installation of the clutch assembly 2 and prevent the clutch assembly 2 from rotating with the handle 6. The upper end surface of the fixing posts 7 is higher than the upper surface of the clutch assembly 2, so that a certain gap 8 is maintained between the two after the reinforcement plate 3 is installed. This prevents the handle 6 from directly acting on the clutch housing, prevents deformation of the clutch housing, and ensures the reset function of the clutch. Preferably, the clutch assembly 2 is provided with four through holes 12 corresponding to the fixing columns 7. The fixing columns 7 pass through the through holes 12. The through holes 12 serve to position the clutch assembly 2. At the same time, the four fixing columns 7 can limit the clutch assembly 2 from rotating with the handle 6, thereby realizing the unlocking action of the clutch assembly 2 transmitted by the handle 6.

[0040] Furthermore, in this embodiment, the reinforcing plate 3 is preferably made of S50C or 65Mn steel, and the hardness of the reinforcing plate 3 is enhanced through a heat treatment process to improve the stress-bearing strength of the reinforcing plate 3. The reinforcing plate 3 is arranged on the top of the clutch assembly 2, and the upper end surface of the fixing column 7 abuts against the bottom surface of the reinforcing plate 3. A gap 8 is formed between the bottom surface of the reinforcing plate 3 and the upper surface of the clutch assembly 2, and the gap 8 prevents the reinforcing plate 3 from contacting the clutch assembly 2. By assembling the reinforcing plate 3, the pressure-bearing capacity of the door handle structure can be improved, so that the stress-bearing strength of the door handle structure can reach more than 1600N without causing deformation of the clutch housing. Preferably, the size of the gap 8 is 2-5mm±0.5mm, which can ensure that the gap 8 satisfies the deformation on the reinforcing plate 3 when the handle 6 is subjected to high pressure and does not cause extrusion to the clutch assembly 2, and can also ensure that the overall thickness of the door handle structure is not too large.

[0041] Furthermore, in this embodiment, the support plate 4 is a sheet metal structural member, with flanges 13 formed on both sides of the support plate 4. The support plate 4 is disposed on the upper surface of the reinforcement plate 3, with the reinforcement plate 3 positioned between the flanges 13. The support plate 4 is fastened to the fixing column 7 by screws and compresses the reinforcement plate 3. Specifically, the reinforcement plate 3 is provided with a first assembly hole 14, and a second assembly hole 15. The screws pass through the second assembly hole 15 and the first assembly hole 14 and are threadedly fastened to the fixing column 7. The support plate 4 contacts the end of the handle 6 and serves as the main body for force transmission to the handle 6. Since the support plate 4 is a sheet metal member and its strength is insufficient, the reinforcement plate 3 is added to further increase the support plate 4's compressive strength. As a result, the force acting on the handle 6 can be transmitted to the fixing column 7 through the support plate 4 and reinforcement plate 3, and finally, the fixing column 7 transmits the force to the door panel 25.

[0042] Furthermore, in this embodiment, the outer end of the actuating rod 5 is formed into a rectangular clamping portion 16. The front end of the actuating rod 5 penetrates the panel 9, the support plate 4, and the reinforcement plate 3 and is in transmission connection with the clutch assembly 2. When the clutch assembly 2 is engaged, driving the actuating rod 5 causes the output end 11 to rotate and unlock. Specifically, the reinforcement plate 3 is provided with a first through-hole 17, the support plate 4 is provided with a second through-hole 18, and the panel 9 is provided with a third through-hole 19. The front end of the actuating rod 5 passes through the first through-hole 17, the second through-hole 18, and the third through-hole 19 in sequence, and the outer end of the actuating rod 5 extends outward from the third through-hole 19. The clutch assembly 2 is provided with a first mounting hole 20, and the actuating rod 5 is adapted to be mounted in the first mounting hole 20. When the clutch assembly 2 is engaged, the actuating rod 5 rotates within the first mounting hole 20 to cause the output end 11 to rotate and unlock.

[0043] Furthermore, in this embodiment, a handle 6 is disposed on the outside of the panel 9. The handle 6 is fastened to the actuating rod 5, and driving the handle 6 can drive the actuating rod 5. Specifically, the front end of the handle 6 is formed into a snap-in groove 21. The shape of the snap-in groove 21 is adapted to the snap-in portion 16 of the actuating rod 5, so that the snap-in groove 21 is adapted to be installed on the snap-in portion 16. The actuating rod 5 is fastened to the handle 6 via a fastening bolt 23. When the clutch assembly 2 is engaged, pressing down or pulling up the handle 6 causes the handle 6 to rotate the actuating rod 5 downward or upward. The actuating rod 5 then drives the output end 11 to rotate, the lock tongue retracts, and unlocking is completed. In particular, in this embodiment, due to the presence of a gap 8 between the reinforcing plate 3 and the clutch assembly 2, the force exerted by the handle 6 is not directly applied to the clutch housing, thereby preventing deformation of the clutch housing and affecting the reset function of the clutch.

[0044] Furthermore, in this embodiment, the handle 6 is provided with an identification module 22, which is fixedly mounted in the mounting slot 24. The identification module 22 is electrically connected to the clutch assembly 2, and the identification module 22 controls the clutch assembly 2 to be electrically engaged. It should be noted that the clutch assembly 2 can adopt the electromagnetic clutch in the prior art. The door lock is equipped with a power supply and a control board. The clutch and the identification module 22 are both electrically connected to the control board, and the power supply is supplied. When the identification module 22 recognizes the correct input signal, the control board controls the clutch to be electrically engaged, and the torque of the handle 6 is transmitted to the clutch output end 11 through the clutch, thereby performing unlocking. After unlocking is completed, the clutch loses power and disengages. The clutch resets under the action of the reset spring and drives the actuating rod 5 to rotate in the opposite direction. The actuating rod 5 is then transmitted to the handle 6, thereby completing the reset of the handle 6.

[0045] The door handle structure of the present invention uses the support plate 4, the reinforcement plate 3 and the fixed column 7 as a force-bearing support carrier. When the handle 6 is driven, due to the existence of the gap 8, the force avoids the clutch housing, and the tension or pressure of the handle 6 is finally transmitted to the door panel 25 through the support plate 4, the reinforcement plate 3 and the fixed column 7, avoiding the clutch housing from deforming due to the force and causing the reset function to fail, so that the handle 6 can be reset normally; the structure is simple, the cost is low, and it has broad application prospects.

[0046] The embodiment of the present utility model further provides a door lock, comprising the above-mentioned door handle structure and lock core component, such as Figure 4 As shown, the door handle structure is mounted on a door panel 25. Specifically, the housing 1 of the door handle structure is fastened to the door panel 25 by screws. The door handle structure of this door lock uses the support plate 4, reinforcement plate 3, and fixing column 7 as a force-bearing carrier. When the handle 6 is driven, due to the presence of the gap 8, the force avoids the clutch housing. The tension or pressure of the handle 6 is ultimately transmitted to the door panel 25 through the support plate 4, reinforcement plate 3, and fixing column 7. This prevents the clutch housing from deforming due to the force and causing the reset function to fail, allowing the handle 6 to reset normally.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. Door handle structure, characterized in that, include: a housing, on which a panel is fastened and mounted to form a receiving cavity; a plurality of fixing posts are provided on the inner bottom surface of the housing, wherein the upper ends of the fixing posts extend toward the panel and the upper ends of the fixing posts are formed as threaded holes; A clutch assembly, wherein the clutch assembly is mounted in the accommodating cavity, an output end of the clutch assembly is externally disposed on the housing, the fixing post passes through the clutch assembly, the fixing post limits the installation of the clutch assembly, and an upper end surface of the fixing post is higher than an upper surface of the clutch assembly; a reinforcing plate, the reinforcing plate being disposed on the upper surface of the clutch assembly, the upper end surface of the fixing column being in contact with the bottom surface of the reinforcing plate, a gap being formed between the bottom surface of the reinforcing plate and the upper surface of the clutch assembly, the gap preventing the reinforcing plate from contacting the clutch assembly; A support plate, the support plate being arranged on the upper surface of the reinforcing plate, the support plate being fastened to the fixing column by screws and pressing the reinforcing plate; an actuating rod, the actuating rod passing through the panel, the support plate and the reinforcing plate and being in transmission connection with the clutch assembly, wherein when the clutch assembly is in an engaged state, the actuating rod is driven to rotate the output end to unlock; A handle is provided on the outside of the panel, the handle is fastened to the actuating rod, and the actuating rod can be driven by driving the handle.

2. The door handle structure according to claim 1, wherein: The reinforcing plate is made of S50C or 65Mn steel, and the hardness of the reinforcing plate is enhanced through a heat treatment process.

3. The door handle structure according to claim 2, wherein: The size of the gap is 2-5 mm ± 0.5 mm.

4. The door handle structure according to claim 1, wherein: The bottom end of the fixing column is riveted to the bottom of the shell. The clutch assembly is provided with a plurality of through holes. The fixing column passes through the through holes. The through holes position the clutch assembly. The fixing column limits the clutch assembly from rotating with the handle.

5. The door handle structure according to claim 1, wherein: The clutch assembly is provided with a first mounting hole, and the actuating rod is adapted to be mounted in the first mounting hole. When the clutch assembly is in an engaged state, the actuating rod rotates in the first mounting hole to drive the output end to rotate and unlock.

6. The door handle structure according to claim 1, wherein: The reinforcing plate is provided with a first through hole, the supporting plate is provided with a second through hole, the panel is provided with a third through hole, the actuating rod passes through the first through hole, the second through hole and the third through hole in sequence, and the outer end of the actuating rod extends toward the outside of the third through hole.

7. The door handle structure according to claim 6, wherein: The outer end of the actuating rod is formed as a rectangular clamping portion, the front end of the handle is formed as a clamping groove, the clamping portion is adapted to be installed in the clamping groove, and the actuating rod is fastened to the handle by a fastening bolt.

8. The door handle structure according to claim 4, wherein: The support plate is formed with flanges, and the reinforcing plate is placed between the flanges; and / or, The reinforcing plate is provided with a first assembly hole, the supporting plate is provided with a second assembly hole, and the screw passes through the second assembly hole and the first assembly hole to be threadedly fastened to the fixing column.

9. The door handle structure according to claim 1, wherein: The handle is provided with an identification module, the identification module is fixedly installed in the installation slot, the identification module is electrically connected to the clutch assembly, and the identification module controls the clutch assembly to be electrically engaged.

10. Door lock, characterized in that, The invention comprises the door handle structure according to any one of claims 1 to 9.

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