A lever handle lock and its reset structure

Abstract

The application provides a handle lock and a reset structure thereof, and the technical scheme is as follows: a handle lock reset structure, which comprises a handle; a handle shaft for being inserted into a door hole is arranged on the handle; at least one reset structure is arranged on the handle shaft; the reset module comprises a shaft sleeve for being inserted into the door hole and a torsional spring; the shaft sleeve is sleeved on the handle shaft; a gap for the rotation of the handle shaft is arranged between the handle shaft and the shaft sleeve; the torsional spring is arranged in the gap; the first end of the torsional spring is connected with the inner wall of the shaft sleeve, and the second end of the torsional spring is connected with the outer wall of the handle shaft; and a handle lock is also disclosed, which comprises the handle lock reset structure; the scheme can simplify the structure of the handle reset module, reduce the product cost, reduce the assembly process, quickly and conveniently install the handle reset module on the door, avoid the punching of multiple installation holes on the door and the installation of multiple screws, save time, and improve the installation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical door lock, in particular to a lever lock reset structure. BACKGROUND

[0002] The door lock lever is an important part in opening and closing the door. The user rotates the lever to retract the lock tongue for manual unlocking. After the user releases the lever, the lever is reset to the initial position by the reset mechanism. The current lever reset mechanism usually adopts a rotating structure of a spring and a rotating disc. The rotating disc and the spring sleeve are arranged on the lever shaft. One end of the spring is fixed to the inner wall of the lock body, and the other end is fixed to the rotating disc. When the two ends of the spring are reset and twisted, the rotating disc and the lever shaft are synchronously rotated to reset the lever. This structure needs a large number of auxiliary components, which are all built-in the lock body and cooperated with the unlocking assembly. The auxiliary components cannot be assembled alone outside the lock body, nor can they be directly fixed to the door leaf. Therefore, the installation is not convenient. Moreover, the lock body needs to be punched with multiple mounting holes and multiple screws are mounted. Therefore, the overall assembly efficiency of the door lock is low. In addition, the number of auxiliary components is relatively large, the compatibility is poor, the product cost is high, and the installation is complicated. SUMMARY

[0003] The present application aims to provide a lever lock and a reset structure thereof, which simplifies the structure of the lever reset module, reduces the product cost, reduces the assembly process, and enables the lever reset module to be quickly and conveniently installed on the door leaf, thereby avoiding punching multiple mounting holes in the door leaf and mounting multiple screws, saving time, and improving the installation efficiency.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] A lever lock reset structure includes a lever handle. The lever handle is provided with a lever shaft for insertion into a door leaf hole and at least one reset structure located on the lever shaft. The reset module includes a shaft sleeve for insertion into the door leaf hole and a torsional spring. The shaft sleeve is sleeved on the lever shaft. A gap is provided between the lever shaft and the shaft sleeve for rotation of the lever shaft. The torsional spring is located in the gap. The first end of the torsional spring is connected to the inner wall of the shaft sleeve, and the second end is connected to the outer wall of the lever shaft.

[0006] In the above-mentioned lever lock reset structure, the inner wall of the shaft sleeve is provided with a first recess, and the outer wall of the lever shaft is provided with a second recess. The first end of the torsional spring is inserted into the first recess, and the second end is inserted into the second recess.

[0007] In the above-mentioned lever lock reset structure, the first recess and the second recess both extend along the axial direction of the lever shaft. The first recess penetrates the end face of the lever shaft, and the second recess penetrates the end face of the shaft sleeve.

[0008] In the handle lock reset structure, the shaft sleeve is provided with a plug-in head for being inserted into the door hole; the outer diameter of the plug-in head is smaller than that of the shaft sleeve; the end surface of the shaft sleeve near the plug-in head is used for abutting against the outer surface of the door; and the handle shaft penetrates through the plug-in head and is in rotational cooperation with the plug-in head.

[0009] In the handle lock reset structure, the outer edge of the cross section of the plug-in head is a non-circular structure.

[0010] In the handle lock reset structure, the plug-in head is provided with a through hole in rotational cooperation with the handle; the through hole is in communication with the inner cavity of the shaft sleeve; and the hole diameter of the through hole is smaller than the inner diameter of the shaft sleeve.

[0011] In the handle lock reset structure, the handle is provided with a first recess cavity; the shaft sleeve is inserted into the first recess cavity and is in rotational cooperation with the first recess cavity; and the handle shaft is located in the first recess cavity.

[0012] In the handle lock reset structure, the outer side surface of the shaft sleeve is provided with a grommet with the shaft center as the center; one side of the grommet abuts against the handle; and the other side is used for abutting against the outer surface of the door.

[0013] In the handle lock reset structure, the outer wall of the handle shaft is provided with a positioning protrusion abutting against the door hole; and the positioning protrusions are arranged on opposite sides of the handle shaft.

[0014] A handle lock comprises a lock body provided with a door hole; and a handle lock reset structure as described above; the handle shaft and the shaft sleeve are both inserted into the door hole.

[0015] Compared with the prior art, the handle lock reset structure has the following advantages:

[0016] In the handle lock reset structure, the shaft sleeve is installed on the door hole in a sliding manner; the shaft sleeve, the torsional spring and the handle shaft are sequentially sleeved from the outside to the inside; the first end of the torsional spring is fixed on the inner wall of the shaft sleeve; and the second end is fixed on the outer wall of the handle shaft. This structure eliminates the auxiliary components for transmission, enables the torsional spring to directly transmit force to the handle shaft, improves the transmission efficiency and stability, is quickly fixed on the door through the door hole, avoids punching and screw installation, reduces the labor and material costs, and improves the installation efficiency.

[0017] Additional aspects and advantages of the present application will be set forth in part in the following description, and will be apparent from the description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 Structure diagram of handle lock reset structure in an embodiment of the present application;

[0020] Figure 2 Assembly explosion diagram of handle shaft, shaft sleeve and torsion spring in an embodiment of the present application;

[0021] Figure 3 Structure diagram of handle handle in an embodiment of the present application;

[0022] Figure 4 Installation diagram of handle shaft and door hole in an embodiment of the present application;

[0023] Figure 5 Installation diagram of shaft sleeve, torsion spring and handle shaft in an embodiment of the present application;

[0024] Figure 6 Installation diagram of shaft sleeve pre-pressing torsion in an embodiment of the present application;

[0025] Figure 7 Installation diagram of shaft sleeve and door hole in an embodiment of the present application;

[0026] Figure 8 Assembly effect diagram of shaft sleeve and door hole in an embodiment of the present application;

[0027] Figure 9 Installation diagram of handle handle and handle shaft in an embodiment of the present application;

[0028] Figure 10 Assembly effect diagram of handle handle and handle shaft in an embodiment of the present application.

[0029] Reference signs: 1, handle handle; 2, shaft sleeve; 3, handle shaft; 4, torsion spring; 5, door hole;

[0030] 11, connecting hole; 12, first recess; 13, second recess; 14, spring; 15, gasket; 16, plug; 17, reverse buckle;

[0031] 21, mark; 22, grommet; 23, rib; 24, through hole; 25, plug; 26, limiting convex part; 27, inner cavity; 28, first recess;

[0032] 31, positioning protrusion; 32, second recess. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] like Figures 1-10 As shown, the present invention provides a lever lock reset structure, including a lever handle 1; the lever handle 1 is provided with a lever shaft 3 for insertion into a door leaf hole 5, and at least one reset structure located on the lever shaft 3. The reset module includes a bushing 2 for insertion into the door leaf hole 5 and a torsion spring 4; the bushing 2 is sleeved on the lever shaft 3, and a gap is provided between the lever shaft 3 and the bushing 2 for the lever shaft 3 to rotate, and the torsion spring 4 is located in the gap; the first end of the torsion spring 4 is connected to the inner wall of the bushing 2, and the second end is connected to the outer wall of the lever shaft 3.

[0035] In actual installation, the connection between the first end of the torsion spring 4 and the inner wall of the bushing 2, and the second end and the outer wall of the rotating shaft, can be achieved by using hot melt adhesive, by opening through holes 24 and slots for locking, or by using structures such as buckles 17 and ratchet to position the end of the torsion spring 4. This embodiment does not impose specific restrictions on the connection method of the torsion spring 4.

[0036] In this embodiment, as Figure 2 As shown, the inner wall of the bushing 2 is provided with a first recess 28, the outer wall of the handle shaft 3 is provided with a second recess 32, and the first end of the torsion spring 4 is inserted into the first recess 28 and the second end is inserted into the second recess 32.

[0037] In the specific implementation, the first recess 28 and the second recess 32 can be both a hole or both a groove, or one is a hole and the other is a groove; when the first recess 28 is a hole, the torsional spring 4 is adjusted by using the torsional deformation characteristics of the torsional spring 4, and the torsional spring 4 is inserted into the shaft sleeve 2, and then the position of the end of the torsional spring 4 is adjusted by using a tool until the position of the end of the torsional spring 4 is opposite to the first recess 28, the torsional spring 4 is reset by elastic deformation, and the end of the torsional spring 4 is pushed into the hole; when the second recess 32 is a hole, the second end of the torsional spring 4 can be inserted on the second recess 32 first, then the handle shaft 3 is pushed to drive the torsional spring 4 to move to the port of the shaft sleeve 2, the torsional spring 4 is adjusted by being pried, and the torsional spring 4 is inserted into the shaft sleeve 2, then the position of the first end of the torsional spring 4 is adjusted, the first end of the torsional spring 4 is inserted into the first recess 28, the first end of the torsional spring 4 can also be inserted into the first recess 28, then the torsional spring 4 and the handle shaft 3 are pulled apart along the axial direction of the handle 1, the second recess 32 is located outside the shaft sleeve 2, the second end of the torsional spring 4 is inserted into the second recess 32 by being pried, then the handle shaft 3 is pushed in the reverse direction to reset, and the second end of the torsional spring 4 is located in the shaft sleeve 2. The above-mentioned hole can be a blind hole or a through hole 24, and the present embodiment does not make too many limitations on this.

[0038] Preferably, the first recess 28 and the second recess 32 both extend along the axial direction of the handle shaft 3, the first recess 28 penetrates the end face of the handle shaft 3, and the second recess 32 penetrates the end face of the shaft sleeve 2.

[0039] The first recess 28 and the second recess 32 both extend along the axial direction of the handle shaft 3, the first recess 28 penetrates the end face of the handle shaft 3, and the second recess 32 penetrates the end face of the shaft sleeve 2.

[0040] In actual application, the first recess 28 can penetrate one end of the shaft sleeve 2 or both ends of the shaft sleeve 2, when penetrating one end, the end face of the end of the shaft sleeve 2 close to the handle 1 is preferably penetrated, so that the shaft sleeve 2, the torsional spring 4, the handle shaft 3 and the handle 1 can all be normally completed on one side of the door leaf, the difficulty is reduced, and the installation efficiency is improved, when penetrating both ends, the shaft sleeve 2 can be axially limited by being provided with a clamping position, a ratchet angle or other structures on the inner side wall of the shaft sleeve 2.

[0041] Similarly, the second recess 32 can also penetrate one end of the handle shaft 3 or both ends of the handle shaft 3. When penetrating both ends, the end face of the handle shaft 3 near the handle 1 is preferably penetrated, and the ports of the second recess 32 and the first recess are on the same side of the door leaf. When penetrating both ends, the installation error caused by the rotation of the handle shaft 3 at both ends is avoided, the error rate is reduced, and the installation quality and efficiency are improved.

[0042] In the implementation and use, the handle 1 can be detachably connected with the handle shaft 3 or integrally formed with the handle shaft 3. When the handle 1 and the handle shaft 3 are integrally formed, the torsional spring 4 is sleeved between the handle 1 and the shaft sleeve 2, and then the shaft sleeve 2 and the handle shaft 3 are inserted into the door leaf hole 5 together, or the reset module and the handle are arranged on opposite sides of the door leaf. When only one handle 1 is used, the connection mode of the handle 1 and the handle shaft 3 is not limited in this embodiment.

[0043] In combination with Figure 2 and Figure 8 As shown in the specific structure of the shaft sleeve 2, the shaft sleeve 2 is provided with a plug 25 for being inserted into the door leaf hole 5; the outer diameter of the plug 25 is smaller than that of the shaft sleeve 2, and the side end face of the shaft sleeve 2 near the plug 25 is used to abut against the outer surface of the door leaf; the handle shaft 3 penetrates the plug 25 and is rotationally matched with the plug 25.

[0044] In this embodiment, the difference in the outer diameters of the plug 25 and the shaft sleeve 2 causes the shaft sleeve to form an outwardly convex circular table face, which is used to abut against the door leaf.

[0045] The plug 25 and the shaft sleeve 2 are both open-ended cylindrical structures and are in communication with each other. The plug 25 and the shaft sleeve 2 are provided with a difference in the outer diameters. The plug 25 is inserted into the door leaf hole 5, and the shaft sleeve 2 abuts against the outer surface of the door leaf to be axially positioned.

[0046] In the implementation and use, the outer edge of the cross section of the plug 25 is a non-circular structure.

[0047] The non-circular outer contour of the plug 25 causes the plug 25 to have a maximum outer diameter and a minimum outer diameter. The shape of the door leaf hole 5 is matched with the outer contour of the plug 25. The maximum outer diameter of the plug 25 is at the minimum aperture of the door leaf hole 5 to form a clamping position, which circumferentially limits the plug 25, prevents the plug 25 from rotating circumferentially in the door leaf hole 5, avoids the torsional spring 4 from not being twisted due to the synchronous rotation of the shaft sleeve 2 and the handle shaft 3, and prevents the knob from failing to work.

[0048] In combination with Figure 2 and Figure 1As shown, the specific structure of the plug-in connector 25 is that the plug-in connector 25 comprises a plug-in connector body in a circular tube structure, a limiting protrusion 26 is arranged on the outer side surface of the plug-in connector body, the limiting protrusion 26 is provided with at least one, in this embodiment, the limiting protrusion 26 is provided with two, and the two limiting protrusions are symmetrically arranged on opposite sides of the plug-in connector body.

[0049] In addition to the circular tube structure matched with the limiting protrusion 26, the plug-in connector body can also adopt structures such as an oval or polygonal cross-section, and this embodiment does not make too many limitations.

[0050] A plurality of rib strips 23 in interference fit with the door leaf hole 5 are arranged on the outer side surface of the plug-in connector 25, the rib strips 23 extend along the circumferential direction of the plug-in connector 25, and are arranged in an axial direction.

[0051] In specific implementation, as shown in Figure 1 , a through hole 24 in rotational fit with the handle 1 is arranged on the plug-in connector 25, the through hole 24 is in communication with an inner cavity 27 of the shaft sleeve 2, and the hole diameter of the through hole 24 is smaller than the inner diameter of the shaft sleeve 2.

[0052] When the handle shaft 3 in this embodiment penetrates through the shaft sleeve 2, it simultaneously penetrates through the through hole 24 of the plug-in connector 25, and then penetrates into the door leaf hole 5, and the axial positioning mode of the torsional spring 4 is that a step is formed at the joint of the plug-in connector 25 and the shaft sleeve 2 due to the difference in inner diameters of the plug-in connector 25 and the shaft sleeve 2, and the torsional spring 4 is abutted against the step.

[0053] In this embodiment, as shown in Figure 1 , a first recessed cavity 12 is arranged on the handle 1, the shaft sleeve 2 is inserted into the first recessed cavity 12 and is in rotational fit with the first recessed cavity 12, and the handle shaft 3 is arranged in the first recessed cavity 12.

[0054] Preferably, as shown in Figure 2 and Figure 8 , a grommet 22 with the center of the shaft as the center is arranged on the outer side surface of the shaft sleeve 2, one side of the grommet 22 is abutted against the handle 1, and the other side is used to abut against the outer surface of the door leaf.

[0055] As shown in Figure 1 and Figure 3 , the specific structure of the handle 1 is that the handle 1 is further provided with a second recessed cavity 13 located at the bottom of the first recessed cavity 12, a spring 14, a gasket 15 and a plug 16 are sequentially arranged in the second recessed cavity 13, the plug 16 is located between the first recessed cavity 12 and the gasket 15, the plug 16, the gasket 15 and the spring 14 are all sleeved on the handle shaft 3, the handle shaft 3 is fixed in the second recessed cavity 13 in a detachable manner, and the plug 16 is provided with a reverse buckle 17 in clamping connection with the inner wall of the second recessed cavity 13 on both sides.

[0056] The bottom of the second cavity 13 is provided with a socket matched with the handle shaft 3, the handle shaft 3 is inserted into the socket, the handle 1 is provided with a connecting hole 11 which is connected with the socket and the outside of the handle 1; when the connecting hole 11 is a threaded hole structure, a bolt can be screwed into the connecting hole 11 until the bolt abuts against the handle shaft 3; when the connecting hole 11 is a pin hole structure, a pin can be inserted into the connecting hole 11 and abut against the handle shaft 3 in interference fit, and the structure of the connecting hole 11 is not limited in the embodiment.

[0057] In combination with Figure 1 and Figure 4 shown, the handle shaft 3 is further improved in the embodiment, the outer wall of the handle shaft 3 is provided with a positioning protrusion 31 abutting against the door leaf hole 5, and the positioning protrusion 31 is arranged on opposite sides of the handle shaft 3.

[0058] Due to the layer-by-layer sleeving relationship of the door leaf hole 5, the shaft sleeve 2 and the handle shaft 3, the outer diameter of the handle shaft 3 and the hole diameter of the door leaf hole 5 have a diameter difference, the positioning protrusion 31 is arranged on the outer wall of the handle shaft 3 to compensate for the diameter difference, the handle shaft 3 abuts against the inner side of the door leaf hole 5 through the positioning protrusion 31, so that the handle shaft 3 is fixed in the door leaf hole 5, and the positioning protrusion 31 is arranged on opposite sides of the handle shaft 3, that is, the positioning protrusions 31 on the two sides are symmetrically arranged, the positioning protrusions 31 on the two sides abut against the inner side of the door leaf hole 5 at the same time, so that the handle shaft 3 is still on the same axis as the door leaf hole 5 and the shaft sleeve 2, the assembly precision is improved, the movement interference between components is avoided, and the use stability and reliability are improved; when the handle shaft 3 is installed, the handle shaft 3 is first inserted into the door leaf hole 5, and then the shaft sleeve 2 and the torsional spring 4 are sleeved.

[0059] In some embodiments, the handle 1 is provided with two handles, which are arranged on the two ends of the handle shaft 3; at least one of the handles 1 is detachably connected with the handle.

[0060] The two handles 1 are respectively used as the handle on the outdoor side of the door leaf and the handle on the indoor side, so that personnel can open the lock from the outdoor side or the indoor side; when two handles 1 are used, at least one handle 1 is connected with the handle shaft 3, so that the handle shaft 3 can penetrate into the door leaf hole 5, and the torsional spring 4 and the shaft sleeve 2 can also be sleeved on the handle; in actual use, the reset module can be arranged on only one side of the door leaf or one on each side of the door leaf.

[0061] The specific installation method of the handle lock reset structure is as follows: first, as shown in Figure 4 , the handle shaft 3 is inserted into the door leaf hole 5, and the positioning protrusion 31 abuts against the inner side of the door leaf hole 5; second, as shown in Figure 5 , the shaft sleeve 2 and the torsional spring 4 are sleeved on the handle shaft 3, the first end of the torsional spring 4 is connected with the inner wall of the shaft sleeve 2, and the second end of the torsional spring 4 is connected with the outer wall of the handle shaft 3; third, as shown in Figure 7 andFigure 8 As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5. Figure 9 As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5. Figure 10 As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5.

[0062] As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5. Figure 6 As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5.

[0063] As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5.

[0064] Further improvement, the outer side of the shaft sleeve 2 is provided with a mark 21, so that the shaft sleeve 2 has a reference point for rotation to the right position.

[0065] As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5. Figures 1-10 As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5.

[0066] As shown in the fourth step, the handle shaft 3 is inserted into the door hole 5.

[0067] The above only some embodiments of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered within the scope of the present application.

Claims

1. A lever handle lock reset structure, comprising a lever handle; a lever handle shaft for inserting into a door leaf hole is arranged on the lever handle; at least one reset module is arranged on the lever handle shaft, characterized in that, The reset module comprises a shaft sleeve for being inserted into a door leaf hole, and a torsion spring; the shaft sleeve is sleeved on a handle shaft, a gap for rotation of the handle shaft is arranged between the handle shaft and the shaft sleeve, and the torsion spring is located in the gap; a first end of the torsion spring is connected with an inner wall of the shaft sleeve, and a second end is connected with an outer wall of the handle shaft; The shaft sleeve is provided with a plug-in connector for being inserted into the door leaf hole; an outer diameter of the plug-in connector is smaller than an outer diameter of the shaft sleeve, and a side end face of the shaft sleeve close to the plug-in connector is used for abutting against an outer surface of the door leaf; the handle shaft penetrates through the plug-in connector and is rotationally matched with the plug-in connector.

2. The lever handle lock retraction arrangement of claim 1 wherein, The inner side wall of the shaft sleeve is provided with a first recess, the outer wall of the handle shaft is provided with a second recess, the first end of the torsion spring is inserted into the first recess, and the second end is inserted into the second recess.

3. The lever handle lock repositioning structure according to claim 2, wherein, The first recess and the second recess both extend along an axial direction of the handle shaft, the first recess penetrates through an end face of the handle shaft, and the second recess penetrates through an end face of the shaft sleeve.

4. The lever handle lock retraction arrangement of claim 1 wherein, The plug-in connector has a non-circular structure in cross section.

5. The lever handle lock retraction arrangement of claim 1 wherein, The plug-in connector is provided with a through hole rotationally matched with the handle, the through hole is communicated with an inner cavity of the shaft sleeve, and a hole diameter of the through hole is smaller than an inner diameter of the shaft sleeve.

6. The lever handle lock retraction arrangement of claim 1 wherein, The handle is provided with a first recess cavity, the shaft sleeve is inserted into the first recess cavity and rotationally matched with the first recess cavity, and the handle shaft is located in the first recess cavity.

7. The lever handle lock retraction arrangement of claim 1 wherein, An outer side face of the shaft sleeve is provided with a grommet with the shaft center as a center, one side of the grommet abuts against the handle, and the other side is used for abutting against the outer surface of the door leaf.

8. The lever handle lock repositioning structure according to claim 1, wherein, The outer wall of the handle shaft is provided with a positioning protrusion abutting against the door leaf hole, and the positioning protrusion is arranged on opposite sides of the handle shaft.

9. A lever handle lock comprising a lock body having a door leaf aperture formed therein, characterised in that, The handle lock reset structure also comprises the handle lock reset structure according to any one of claims 1-8, and the handle shaft and the shaft sleeve are both inserted into the door leaf hole.

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