Handle lock rotating structure with bearing and pull rod and handle lock

Abstract

A square hole shaft comprises a large column in the middle and small columns arranged at the two ends of the large column in the length direction, and at least part of the end, close to the small columns, of the large column in the circumferential direction is contracted inwards to form a step structure; the utility model provides a handle lock rotating structure with a bearing and a pull rod and a handle lock. A first shifting piece and a second shifting piece are respectively sleeved at a step structure of a square hole shaft to form stable fixation; the two rotary bearings are arranged on the two small columns respectively in a sleeving mode, in the rotating process of the square hole shaft, the square hole shaft drives the inner rotating part to rotate, the outer fixing parts of the rotary bearings are fixed respectively and rotate, the rotary bearings support the square hole shaft, meanwhile, resistance in the rotating process is reduced, and operation resistance and noise are controlled. The spring provides resilience force for realizing the latch bolt, and the guide column provides sliding guide of the latch bolt and position limitation of the spring.

Description

Technical Field

[0001] This utility model relates to the field of lever lock structures, and in particular to a lever lock rotating structure and lever lock with bearings and a pull rod. Background Technology

[0002] Lever handle locks are locks operated by hand, including traditional door locks, drawer locks, and other locks requiring manual operation. These locks typically require turning, pressing, or pulling to open or close. Lever handle locks are simple, stable, and versatile, making them widely used in various application scenarios.

[0003] Door handle locks typically consist of a lock body installed inside the door and corresponding handles mounted on either side of the door. The lock body is operated by rotating the handles. Since the handles on door handle locks are used frequently, the smoothness of their rotation is crucial for the user experience. Currently, a common fixing method involves directly hinged fixing of the square hole shaft on the handle. This results in significant frictional resistance during the rotation of the square hole shaft, and this resistance tends to worsen over time. The primary function of the handle rotation is to drive the latch within the lock body. The square latch is generally controlled by the lock cylinder; however, in some cases, reverse rotation of the handle can also control some functions of the square latch. Utility Model Content

[0004] The main purpose of this utility model is to provide a rotating structure and handle lock with bearings and a pull rod, which aims to solve the problem that the square hole shaft on the corresponding handle part is directly hinged and fixed, and the square hole shaft is subject to large frictional resistance during rotation, and the resistance worsens with the extension of service life.

[0005] To achieve the above objectives, this utility model provides a rotating structure for a handle lock with a bearing and a pull rod, comprising:

[0006] The housing includes a base plate and a cover plate joined together, wherein a first through hole and a second through hole are correspondingly provided at the midpoint of the width direction of the base plate and the cover plate.

[0007] A square-hole shaft is installed between the first through hole and the second through hole and includes a square-hole shaft, a first lever, a second lever, and two rotary bearings. The square-hole shaft includes a large column in the middle and small columns at both ends of the large column. At least a portion of the large column near the small column is inwardly tapered to form a stepped structure. The first lever and the second lever are respectively sleeved on the outer periphery of one of the stepped structures of the square-hole shaft to form a circumferential fixation. The two rotary bearings are respectively sleeved on one of the small columns. The rotary bearings include an outer fixed part and an inner rotating part that avoids the housing.

[0008] The oblique tongue is located at one end of the width of the housing and includes an oblique tongue, a guide plate and a bent rod. The inner end of the oblique tongue is connected to a guide post, and a spring is sleeved on the guide post. The free end of the guide post passes through the guide plate to form a sliding limit. The bent rod extends from the oblique tongue to the other end of the width of the housing.

[0009] The first lever has a first protrusion extending upwards circumferentially for actuating the bent rod, and the second lever has a third protrusion extending upwards circumferentially for actuating the external square tongue assembly.

[0010] Furthermore, a supporting plate is also sandwiched between the base plate and the cover plate, the supporting plate having the same length direction as the housing and extending towards the oblique tongue.

[0011] Furthermore, the supporting plate is connected to the guide plate and is an integral structure.

[0012] Furthermore, a fixing post is also clamped between the base plate and the cover plate, the first pusher has a second protrusion extending circumferentially to correspond to the fixing post, and the second pusher has a fourth protrusion extending circumferentially to correspond to the fixing post.

[0013] Furthermore, the cross-section of the large column is generally square.

[0014] Furthermore, the step structure includes four sub-steps, which are respectively located at the four corners of the large column.

[0015] Furthermore, the cross-section of the small column is circular.

[0016] Furthermore, the inner circumference of the rotary bearing is fixedly connected to the outer circumference of the small column.

[0017] Furthermore, the inner rotating portions of the two rotary bearings respectively abut against the first and second derailleurs in the thickness direction.

[0018] This utility model also provides a lever lock, including a square tongue, a lock cylinder, and the aforementioned lever lock rotating structure with bearings and a pull rod, wherein the square tongue and the lock cylinder are movably and mutually matched and installed in the housing.

[0019] This utility model provides a rotating structure and handle lock with bearings and a pull rod. The square hole shaft includes a large column in the middle and small columns at both ends of the large column. At least a portion of the large column near the small column is inwardly tapered to form a stepped structure. The first and second levers are respectively fitted onto a stepped structure of the square hole shaft to form a stable fixation. Two rotating bearings are respectively fitted onto a small column. During the rotation of the square hole shaft, the square hole shaft drives the inner rotating part to rotate, while the outer fixed part of the rotating bearing is fixed and rotates. The rotating bearings support the square hole shaft while reducing the resistance during rotation, and the operating resistance and noise are controlled. The spring provides the rebound force of the latch, and the guide post provides the sliding guidance of the latch and the position restriction of the spring. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the rotating structure of the handle lock with bearing and pull rod according to the first embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the tongue extension state of the lever lock rotating structure with bearing and pull rod in the first embodiment of this utility model (cover plate hidden);

[0022] Figure 3 This is a schematic diagram of the square hole shaft portion of the rotating structure of the handle lock with bearing and pull rod in the first embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the square hole shaft in the rotating structure of the handle lock with bearing and pull rod according to the first embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the tongue retracted in the rotating structure of the lever lock with bearing and pull rod according to the first embodiment of this utility model (cover plate hidden);

[0025] Figure 6 This is a schematic diagram of the first embodiment of the lever lock with bearings and a pull rod in the rotating structure of the present invention, showing the tongue extended (cover plate hidden);

[0026] Figure 7 This is a schematic diagram of the lever lock of the second embodiment of this utility model.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0029] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0030] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0031] Reference Figures 1 to 7 In one embodiment of this utility model, a rotating structure for a lever lock with a bearing and a pull rod includes:

[0032] The housing includes a base plate 110 and a cover plate 120 that are joined together. The base plate 110 and the cover plate 120 are respectively provided with a first through hole and a second through hole at the middle of their width directions.

[0033] A square-hole shaft portion 200 is installed between the first through hole and the second through hole and includes a square-hole shaft 210, a first lever 220, a second lever 230, and two rotary bearings 240. The square-hole shaft 210 includes a large column 211 in the middle and small columns 212 at both ends of the large column 211. At least a portion of the large column 211 near the small column 212 is circumferentially recessed to form a stepped structure 213. The first lever 220 and the second lever 230 are respectively sleeved on the outer periphery of one of the stepped structures 213 of the square-hole shaft 210 to form a circumferential fixation. The two rotary bearings 240 are respectively sleeved on one of the small columns 212. The rotary bearings 240 include an outer fixed part and an inner rotating part that avoids the housing.

[0034] The oblique tongue 300 is disposed at one end of the width of the housing and includes an oblique tongue 310, a guide plate 320 and a bent rod 340. The inner end of the oblique tongue 310 is connected to a guide post 330. A spring is sleeved on the guide post 330. The free end of the guide post 330 passes through the guide plate 320 to form a sliding limit. The bent rod 340 extends from the oblique tongue 310 to the other end of the width of the housing.

[0035] The first lever 220 has a first protrusion 221 extending upward around its circumference for actuating the bent rod 340, and the second lever 230 has a third protrusion 231 extending upward around its circumference for actuating the external square tongue assembly.

[0036] In the prior art, lever handle locks refer to lock types operated by hand movements. These include traditional door locks, drawer locks, and other locks requiring manual operation. These locks typically require different methods such as turning, pressing, or pulling to open or close. Lever handle locks offer advantages such as simplicity, stability, and versatility, and are widely used in various application scenarios.

[0037] Door handle locks typically consist of a lock body installed inside the door and corresponding handles mounted on either side of the door. The lock body is operated by rotating the handles. Since the handles on door handle locks are used frequently, the smoothness of their rotation is crucial for the user experience. Currently, a common fixing method involves directly hinged fixing of the square hole shaft on the handle. This results in significant frictional resistance during the rotation of the square hole shaft, and this resistance tends to worsen over time. The primary function of the handle rotation is to drive the latch within the lock body. The square latch is generally controlled by the lock cylinder; however, in some cases, reverse rotation of the handle can also control some functions of the square latch.

[0038] This utility model provides a rotating handle lock structure with bearings and a pull rod. The housing includes a base plate 110 and a cover plate 120 that are joined together. The housing serves as the mounting location for various subsequent components, and its mounting position is on the basic structure of the door leaf. The joining method between the base plate 110 and the cover plate 120 can be varied and is not specifically limited. A first through hole and a second through hole are correspondingly provided at the center of the width direction of the base plate 110 and the cover plate 120, serving as the mounting positions for the handle of the handle lock.

[0039] The square-hole shaft portion 200 is installed between the first through hole and the second through hole and includes a square-hole shaft 210, a first lever 220, a second lever 230, and two rotary bearings 240. A square shaft hole is provided through the middle of the square-hole shaft 210. The function of the square-hole shaft portion 200 is to connect to the square shaft of the external handle. During the rotation of the handle, the square-hole shaft portion 200 is driven to rotate. The square-hole shaft 210 includes a large column 211 in the middle and small columns 212 at both ends of the large column 211. The outer diameter of the large column 211 is larger than the outer diameter of the small columns 212. The cross-section of the large column 211 and the column can be of various shapes and is not limited to a specific shape such as a circle. At least a portion of the large column 211 near the small column 212 is tapered inward in the circumferential direction to form a stepped structure 213. For example, the entire circumference of the outer end of the large column 211 is tapered inward, forming a continuous stepped structure in the circumference. Alternatively, when the cross-section of the large column 211 is square, it tapes inward at the four corners, forming four small steps that together form the stepped structure 213. The first lever 220 and the second lever 230 are respectively fitted onto the outer circumference of one of the stepped structures 213 on the square hole shaft 210, forming a circumferential fixation. During the rotation of the square hole shaft 210, the first lever 220 and the second lever 230 rotate together. The fixing method of the first lever 220 and the second lever 230 in the circumference of the square hole shaft 210 can be varied, preferably by structural constraints. Taking the first lever 220 as an example, the inner circumference of the first lever 220 and the corresponding outer circumference of the square hole shaft 210 are non-circular structures (such as squares), so that there is no relative rotation between them. Two rotary bearings 240 are respectively fitted onto a small column 212. The rotary bearing 240 includes an outer fixed part and an inner rotating part provided with a clearance housing. The outer fixed part of the rotary bearing 240 is clamped by the housing and the square hole shaft 210, thereby enabling the rotary bearing 240 to perform its function. During the rotation of the square hole shaft 210, the square hole shaft 210 drives the inner rotating part to rotate, while the outer fixed part of the rotary bearing 240 rotates while being fixed. The rotary bearing 240 provides support to the square hole shaft 210, while reducing the resistance during rotation, and the operating resistance and noise are both controlled.

[0040] A tongue portion 300 is located at one end of the housing width and includes a tongue 310 and a guide plate 320. The inner end of the tongue 310 is connected to a guide post 330. A spring is sleeved on the guide post 330, and the free end of the guide post 330 passes through the guide plate 320 to form a sliding limit. The spring provides the rebound force for the tongue 310, and the guide post 330 provides the sliding guidance for the tongue 310 and the position limit for the spring. A bend rod 340 extends from the tongue 310 to the other end of the housing width. A first lever 220 extends circumferentially upward with a first protrusion 221 for actuating the bend rod 340. During the forward rotation of the first lever 220, the first protrusion 221 actuates the bend rod 340 and pulls the tongue 310. When the force driving the square hole shaft 210 to rotate is no longer applied, the bend rod 340 pulls the first lever 220 to rotate in the reverse direction under the action of the spring, and the square hole shaft 210 returns to its initial position. The second lever 230 extends upwards and has a third protrusion 231 for actuating the external square tongue assembly. After the square hole shaft 210 rotates in the reverse direction to a certain position, the second lever 230 interacts with the square tongue assembly, causing the square tongue assembly to enter a locked state. A spring-loaded reset structure can be provided for the second lever 230, so that the second lever 230 can be reset after reverse rotation.

[0041] In summary, the square hole shaft 210 includes a large column 211 in the middle and small columns 212 at both ends of the large column 211. At least a portion of the large column 211 near the small column 212 is recessed in the circumferential direction to form a stepped structure 213. The first lever 220 and the second lever 230 are respectively sleeved on one of the stepped structures 213 of the square hole shaft 210 to form a stable fixation. Two rotary bearings 240 are respectively sleeved on one of the small columns 212. During the rotation of the square hole shaft 210, the square hole shaft 210 drives the inner rotating part to rotate, while the outer fixed part of the rotary bearing 240 is fixed and rotates. The rotary bearing 240 supports the square hole shaft 210 while reducing the resistance during rotation. The operating resistance and noise are controlled. The spring provides the rebound force of the inclined tongue 310, and the guide post 330 provides the sliding guidance of the inclined tongue 310 and the position restriction of the spring.

[0042] In one embodiment, a supporting plate is further sandwiched between the base plate 110 and the cover plate 120, the supporting plate having the same length direction as the housing and extending toward the oblique tongue 310.

[0043] In this embodiment, when the latch 310 is not retracted, the spring is not fully compressed, and the free end of the abutment plate and the latch 310 are in clearance fit in the width direction of the housing; when the latch 310 is retracted, the spring is fully compressed, and the free end of the abutment plate and the latch 310 abut against each other in the width direction of the housing, limiting the excessive retraction of the latch 310.

[0044] In one embodiment, the abutment plate and the guide plate 320 are connected and are an integral structure.

[0045] In this embodiment, the supporting plate and the guide plate 320 are set as an integral structure, thereby reducing the difficulty of processing and installation and providing greater convenience. In specific implementation, for example, the supporting plate and the guide plate 320 are generally angled, with the length direction of the supporting plate consistent with the width direction of the housing, and the length direction of the guide plate 320 consistent with the length direction of the housing.

[0046] In one embodiment, the two ends of the spring are connected to the oblique tongue 310 and the guide plate 320, respectively.

[0047] In this embodiment, the two ends of the spring along its length are fixed, thereby reducing the possibility of noise generated during operation and virtually eliminating the possibility of the spring malfunctioning. The connection method between the two ends of the spring can be welding or fastening, etc., and there are no specific limitations.

[0048] Reference Figures 1 to 6 In one embodiment, a fixing post 130 is also sandwiched between the base plate 110 and the cover plate 120. The first pusher 220 extends upward around the fixing post 130 with a second protrusion 222 corresponding to the fixing post 130, and the second pusher 230 extends upward around the fixing post 130 with a fourth protrusion 232 corresponding to the fixing post 130.

[0049] In this embodiment, when the first lever 220 rotates to its position and retracts the oblique tongue 310, the second protrusion 222 on the first lever 220 abuts against the fixing post 130, thereby limiting structural abnormalities caused by excessive rotation of the first lever 220. When the second lever 230 rotates to its position and drives the square tongue assembly to its position, the fourth protrusion 232 on the second lever 230 abuts against the fixing post 130, thereby limiting structural abnormalities caused by excessive rotation of the second lever 230.

[0050] Reference Figures 3 to 4 In one embodiment, the cross-section of the large column 211 is generally square.

[0051] In this embodiment, the cross-section of the large column 211 is limited, thereby making the fixing action of the first derailleur 220 and the second derailleur 230 more stable and reducing abnormal situations of mutual rotation.

[0052] Reference Figures 3 to 4 In one embodiment, the step structure 213 includes four sub-steps, which are respectively located at the four corners of the main column 211.

[0053] In this embodiment, taking advantage of the fact that the cross-section of the large column 211 is generally square, the step structure 213 is decomposed into four corner steps, which facilitates processing and provides stable support.

[0054] Reference Figures 3 to 4 In one embodiment, the cross-section of the column 212 is circular.

[0055] In this embodiment, the cross-section of the small column 212 is restricted to a circle, so that the connection between the rotary bearing 240 and the small column 212 is smoother during the rotation of the square hole shaft 210.

[0056] In one embodiment, the inner circumference of the rotary bearing 240 is fixedly connected to the outer circumference of the column 212.

[0057] In this embodiment, the rotary bearing 240 and the small column 212 of the square hole shaft 210 are fixed in the circumferential direction, so that there is no relative rotation between the two. During the rotation of the square hole shaft 210, there is only rolling friction on the rotary bearing 240, and there is no relative friction between the square hole shaft 210 and the rotary bearing 240, which improves the smoothness of the rotation process of the square hole shaft 210.

[0058] In one embodiment, the inner rotating portions of the two rotary bearings 240 abut against the first lever 220 and the second lever 230 respectively in the thickness direction.

[0059] In this embodiment, by having the rotary bearing 240 and the square hole shaft 210 perform a clamping action together, the stability of the first and second levers 220 and 230 in the thickness direction is improved, and the rotation process of the entire square hole shaft 200 is smoother. Specifically, the inner rotating part of the rotary bearing 240 completes the clamping action, so the non-rotating outer fixed part of the rotary bearing 240 does not obstruct the rotation of the first and second levers 220 and 230, but the inner rotating part rotates together with the first and second levers 220 and 230.

[0060] This utility model also provides a lever lock, including a square tongue portion 400, a lock cylinder portion 500, and the aforementioned lever lock rotating structure with bearings and a pull rod. The square tongue portion 400 and the lock cylinder portion 500 are movably and mutually matched and installed in the housing.

[0061] In this embodiment, the driving method of the lock cylinder 500 and the latch 400 follows the existing conventional configuration and is not the focus. For example, the latch 400 adopts a square tooth driving form, and the control of the latch 400 is achieved by rotating the relevant components on the lock cylinder 500. It should be noted that the latch 400 not only corresponds to the lock cylinder 500 but also to the second lever 230 on the square hole shaft 200. For example, a relevant square tooth structure is provided on the side of the latch 400 near the lock cylinder 500, and a hook portion corresponding to the third protrusion 231 on the second lever 230 is provided on the side of the latch 400 near the square hole shaft 200, so that the rotation of the second lever 230 can drive the operation of the latch 400.

[0062] In summary, the rotary handle lock structure and handle lock with bearings and pull rods provided by this utility model include a square hole shaft 210 comprising a large column 211 in the middle and small columns 212 at both ends of the large column 211. At least a portion of the large column 211 near the small column 212 is recessed in the circumferential direction to form a stepped structure 213. The first lever 220 and the second lever 230 are respectively sleeved on one of the stepped structures 213 of the square hole shaft 210 to form a stable fixation. Two rotary bearings 240 are respectively sleeved on one of the small columns 212. During the rotation of the square hole shaft 210, the square hole shaft 210 drives the inner rotating part to rotate, while the outer fixed part of the rotary bearing 240 is fixed and rotates. The rotary bearing 240 supports the square hole shaft 210 while reducing the resistance during rotation, and the operating resistance and noise are controlled. The spring provides the rebound force of the latch 310, and the guide post 330 provides the sliding guidance of the latch 310 and the position restriction of the spring.

[0063] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A rotating structure for a lever lock with bearings and a pull rod, characterized in that, include: The housing includes a base plate and a cover plate joined together, wherein a first through hole and a second through hole are correspondingly provided at the midpoint of the width direction of the base plate and the cover plate. A square-hole shaft is installed between the first through hole and the second through hole and includes a square-hole shaft, a first lever, a second lever, and two rotary bearings. The square-hole shaft includes a large column in the middle and small columns at both ends of the large column. At least a portion of the large column near the small column is inwardly tapered to form a stepped structure. The first lever and the second lever are respectively sleeved on the outer periphery of one of the stepped structures of the square-hole shaft to form a circumferential fixation. The two rotary bearings are respectively sleeved on one of the small columns. The rotary bearings include an outer fixed part and an inner rotating part that avoids the housing. The oblique tongue is located at one end of the width of the housing and includes an oblique tongue, a guide plate and a bent rod. The inner end of the oblique tongue is connected to a guide post, and a spring is sleeved on the guide post. The free end of the guide post passes through the guide plate to form a sliding limit. The bent rod extends from the oblique tongue to the other end of the width of the housing. The first lever has a first protrusion extending upwards circumferentially for actuating the bent rod, and the second lever has a third protrusion extending upwards circumferentially for actuating the external square tongue assembly.

2. The lever lock rotating structure with bearing and pull rod according to claim 1, characterized in that, A retaining plate is also sandwiched between the base plate and the cover plate. The length direction of the retaining plate is consistent with that of the housing and extends toward the oblique tongue.

3. The lever lock rotating structure with bearing and pull rod according to claim 2, characterized in that, The supporting plate is connected to the guide plate and is an integral structure.

4. The lever lock rotating structure with bearing and pull rod according to any one of claims 1 to 3, characterized in that, A fixing post is also clamped between the base plate and the cover plate. The first pusher extends circumferentially with a second protrusion corresponding to the fixing post, and the second pusher extends circumferentially with a fourth protrusion corresponding to the fixing post.

5. The lever lock rotating structure with bearing and pull rod according to any one of claims 1 to 3, characterized in that, The cross-section of the large column is generally square.

6. The lever lock rotating structure with bearing and pull rod according to claim 5, characterized in that, The stepped structure includes four sub-steps, which are respectively located at the four corners of the main column.

7. The lever lock rotating structure with bearing and pull rod according to any one of claims 1 to 3, characterized in that, The cross-section of the small column is circular.

8. The lever lock rotating structure with bearing and pull rod according to claim 7, characterized in that, The inner circumference of the rotary bearing is fixedly connected to the outer circumference of the column.

9. The lever lock rotating structure with bearing and pull rod according to any one of claims 1 to 3, characterized in that, The inner rotating portions of the two rotary bearings respectively abut against the first and second derailleurs in the thickness direction.

10. A lever lock, characterized in that, The lock includes a square latch, a lock cylinder, and a lever lock rotating structure with bearings and a pull rod as described in any one of claims 1 to 9, wherein the square latch and the lock cylinder are movably and mutually matched and installed within the housing.

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