Comfortable grip of outer opening fork handle

Abstract

The utility model belongs to the technical field of lockset, and relates to an outside opening prong handle with comfortable feeling. The utility model, including base and rotatable handle, the base is equipped with rotatable gear body, the handle bottom is equipped with main shaft, the main shaft is connected with gear body through connecting piece, the base is equipped with the clamping tooth locking structure that can do reciprocating linear motion along the one end of gear body close or away, the base is equipped with prong piece that can reciprocate along the linear motion, gear body and prong piece are engaged with each other, the handle end has anti - jamming part. The utility model makes handle produce clear positioning feeling and crisp locking sound when rotating through the clamping tooth locking structure cooperation gear body, ensures the accuracy of door and window opening and closing, through the innovative design of handle end anti - jamming part, the holding comfort degree is improved obviously, realizes the combination of operation and ergonomics.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology and relates to an outward-opening fork handle with a comfortable grip. Background Technology

[0002] Currently, outward-opening lever handles on the market generally suffer from the following problems: First, the sharp edges at the end of the handle can easily cause hand pain during prolonged use, severely affecting comfort. Second, the lack of a clear feedback mechanism during handle rotation makes it difficult for users to determine whether the handle has turned to the correct position, potentially leading to incomplete opening and closing of doors and windows, posing a safety hazard. Third, the complex installation structure of traditional handles requires multiple assembly steps, resulting in low installation efficiency and high labor costs. Therefore, there is an urgent need to design an outward-opening lever handle that overcomes these shortcomings and offers a comfortable grip.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a handle [application number: 202021909460.3], which includes a handle, a square shaft, and a transmission component. The two ends of the square shaft are connected to the transmission component and the handle respectively. The handle includes a hand-held part and a connecting part. A connecting groove is formed on the connecting part. The square shaft extends into the connecting groove and connects with the connecting groove. The square shaft has a connecting shaft part, a square shaft part, and a round shaft part. A connecting component is sleeved on the outside of the round shaft part. An annular groove is provided between the round shaft part and the connecting shaft part. A limiting component is provided in the annular groove. The limiting component fixes the connecting component on the round shaft part. By setting the traditional square shaft to a square shaft with a connecting shaft part, a round shaft part, and a square shaft part, and fixing the round seat and wear-resistant part together with the square shaft by the limiting component, the square shaft and the round seat form a component. However, this solution still easily causes hand pain during practical use, and the rotation process lacks a clear operation feedback mechanism. It is difficult for users to judge whether the handle has been rotated to the correct position, which may lead to incomplete opening and closing of doors and windows, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a comfortable outward-opening lever handle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A comfortable outward-opening shift fork handle includes a base and a rotatable handle. The base contains a rotatable gear body, and the bottom of the handle has a main shaft. The main shaft and the gear body are connected by a connector. The base contains a locking structure with a locking tooth that can reciprocate linearly along one end close to or away from the gear body. The base also contains a shift fork that can reciprocate linearly. The gear body and the shift fork mesh with each other. The end of the handle has an anti-agglomeration part.

[0007] In the aforementioned comfortable outward-opening shift fork handle, the locking structure includes two inner plastic frames disposed within the base, and a locking steel post is provided within the inner plastic frame. The locking steel post is positioned corresponding to the gear body and is matched in shape.

[0008] In the aforementioned comfortable outward-opening shift fork handle, an elastic reset connector is provided between the locking steel column and the inner plastic frame. The head of the locking steel column is arc-shaped, and the locking steel column is matched with the tooth profile of the gear body.

[0009] In the aforementioned comfortable outward-opening shift fork handle, the elastic reset connector includes a transverse spring disposed between the locking steel column and the inner plastic frame. One end of the transverse spring is connected to the tail of the locking steel column, and the other end is connected to the inner wall of the inner plastic frame.

[0010] In the aforementioned comfortable outward-opening shift fork handle, the inner plastic frame has a spring mounting chamber, the base has a frame fixing groove with an opening facing the gear body, and the inner plastic frame is embedded in the frame fixing groove.

[0011] In the aforementioned comfortable outward-opening shift fork handle, the anti-aggression portion includes a semi-circular portion and an arc portion located at the end of the handle.

[0012] In the aforementioned comfortable outward-opening shift fork grip, the shift fork includes a long shift fork disposed in the base, the top of the long shift fork is provided with a transverse plate, and the transverse plate is provided with a toothed part that meshes with a gear body.

[0013] In the aforementioned comfortable outward-opening shift fork handle, the base has a bottom plate with a sliding groove inside. The long shift fork passes through the sliding groove and slides in cooperation with it. The bottom plate and the base are fixed together by bolts.

[0014] In the aforementioned comfortable outward-opening shift fork handle, a longitudinal spring is provided between the main shaft and the handle.

[0015] In the aforementioned comfortable outward-opening shift fork handle, the connecting component includes a cross-slot countersunk screw disposed between the main shaft and the gear body.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This utility model uses a locking structure with a gear body to produce a clear positioning feel and a crisp locking sound when the handle is turned, ensuring the accuracy of opening and closing doors and windows. The innovative design of the anti-aggression part at the end of the handle significantly improves the grip comfort, achieving a combination of operation and ergonomics.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the gear body.

[0022] Figure 4 This is a structural diagram of the shift fork component.

[0023] In the diagram: 1. Base; 2. Handle; 3. Gear body; 4. Main shaft; 5. Connector; 6. Locking tooth structure; 7. Shift fork; 8. Anti-scratching part; 9. Inner plastic frame; 10. Locking steel column; 11. Elastic reset connector; 12. Horizontal spring; 13. Spring housing chamber; 141. Semicircular part; 142. Arc part; 15. Long shift fork; 16. Horizontal sliding plate; 17. Toothed part; 18. Base plate; 19. Slide groove; 20. Longitudinal spring; 21. Cross-head countersunk screw. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, a comfortable outward-opening shift fork handle includes a base 1 and a rotatable handle 2. The base 1 has a rotatable gear body 3, and the bottom of the handle 2 has a main shaft 4. The main shaft 4 and the gear body 3 are connected by a connector 5. The base 1 has a locking structure 6 that can reciprocate linearly along one end close to or away from the gear body 3. The base 1 also has a shift fork 7 that can reciprocate linearly. The gear body 3 and the shift fork 7 mesh with each other. The end of the handle 2 has an anti-aggregate part 8.

[0026] In this embodiment, the main shaft 4 and the gear body 3 are fastened together by the connector 5 to ensure that the power is stably transmitted to the gear body 3 when the handle is rotated. The base 1 is provided with a tooth locking structure 6 and a shift fork 7: the tooth locking structure 6 can reciprocate along a straight line to lock and unlock the gear body 3; the shift fork 7 meshes with the gear body 3 to convert the rotational motion of the gear body 3 into linear motion to drive the door and window opening and closing mechanism. In addition, the anti-aggression part 8 at the end of the handle 2 has a unique curved surface design to optimize the grip feel. The overall structure has achieved the integration of power transmission, precise locking and comfortable operation through modular design, meeting the needs of efficient, safe and comfortable use of door and window hardware.

[0027] Combination Figure 1-4 As shown, the locking structure 6 includes two inner plastic frames 9 disposed within the base 1. Each inner plastic frame 9 contains a locking steel post 10, which corresponds in position and shape to the gear body 3. An elastic reset connector 11 is provided between the locking steel post 10 and the inner plastic frame 9. The head of the locking steel post 10 is arc-shaped, and the tooth clearance of the locking steel post 10 matches that of the gear body 3. The elastic reset connector 11 includes a transverse spring 12 disposed between the locking steel post 10 and the inner plastic frame 9. One end of the transverse spring 12 is connected to the tail of the locking steel post 10, and the other end is connected to the inner wall of the inner plastic frame 9. The inner plastic frame 9 has a spring mounting chamber 13. The base 1 has a frame fixing groove with an opening facing the gear body 3, and the inner plastic frame 9 is embedded in the frame fixing groove.

[0028] In this embodiment, when the handle is rotated, the gear body 3 rotates, and the locking steel column 10, under the action of the transverse spring 12, periodically engages with the gear teeth, producing a crisp "click" sound to indicate to the user that the operation is in place; at the same time, the elastic force of the spring ensures that the locking steel column 10 always fits against the gear, preventing the handle from rotating accidentally. By combining elastic locking with sound feedback, precise operation prompts are achieved through simple mechanical cooperation. Compared with traditional handles without feedback, this significantly improves the user experience and operational safety.

[0029] The anti-agility part 8 includes a semi-circular part 141 and an arc part 142 disposed at the end of the handle 2.

[0030] In this embodiment, the anti-grip part 8 is composed of a semi-circular part 141 and an arc part 142 at the end of the handle 2. The two are connected by a smoothly transitioning curved surface to form an ergonomic grip contour. The semi-circular part 141 provides a stable grip support point, while the arc part 142 conforms to the natural curvature of the fingers, reducing local pressure. Through precise curved surface design, the sharp end of the traditional handle is transformed into a soft, conforming surface, solving the problem of hand discomfort from the root without changing the overall appearance.

[0031] The shift fork 7 includes a long shift fork 15 disposed in the base 1. The top of the long shift fork 15 is provided with a transverse plate 16. The transverse plate 16 is provided with a toothed part 17 that meshes with the gear body 3. The bottom of the base 1 is provided with a base plate 18. A sliding groove 19 is opened in the base plate 18. The long shift fork 15 passes through the sliding groove 19 and slides with the sliding groove 19. The base plate 18 is fixed to the base 1 by bolts.

[0032] In this embodiment, when the gear body 3 rotates, the toothed part 17 is driven by the gear, which drives the long shift fork 15 to move linearly along the slide groove 19, thereby driving the door and window opening and closing linkage mechanism. The guide design of the slide groove 19 and the long shift fork 15 ensures that the shift fork part 7 moves smoothly and reduces shaking. The bolt-fixed base plate 18 is easy to disassemble and maintain, improving the reliability of the structure.

[0033] Combination Figure 2 As shown, a longitudinal spring 20 is provided between the main shaft 4 and the handle 2.

[0034] In this embodiment, during the rotation of the handle, the longitudinal spring 20 provides buffering damping to avoid rigid collisions and further improve the operating feel. At the same time, it can absorb the vibration caused by the resistance of opening and closing doors and windows, and extend the service life of the handle.

[0035] Combination Figure 2 As shown, the connector 5 includes a cross-slot countersunk screw 21 disposed between the spindle 4 and the gear body 3.

[0036] In this embodiment, the connector 5 uses a cross-slot countersunk screw 21. The screw passes through the spindle 4 and is screwed into the preset screw hole of the gear body 3 to achieve a rigid connection between the two. The cross-slot countersunk design facilitates tool installation, and the screw head is recessed into the surface of the spindle 4 to avoid interfering with the rotation of the handle. The rigid connection ensures that the power transmission is slip-free and improves the reliability of operation.

[0037] The working principle of this utility model is as follows:

[0038] When the user holds and rotates the handle 2, the handle 2 drives the gear body 3 to rotate through the main shaft 4 and the cross-slot countersunk screw 21. During this process, the locking steel column 10 of the locking structure 6, pushed by the transverse spring 12, engages with the gear body 3 after each tooth position, producing a clear locking sound and positioning feel, indicating to the user that the operation is in place. At the same time, the gear body 3 drives the shift fork 7 through the meshing toothed part 17, causing the long shift fork 15 to move linearly along the slide groove 19 of the base plate 18, realizing the opening and closing of doors and windows. The semi-circular part 141 and the arc part 142 at the end of the handle 2 fit the hand throughout the entire process, providing a comfortable grip experience. The longitudinal spring 20 between the main shaft 4 and the handle 2 buffers the rotational resistance and optimizes the operating feel. The entire process achieves precise, comfortable and safe door and window control through the coordinated cooperation of multiple components.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0040] Although this document frequently uses terms such as base 1, handle 2, gear body 3, main shaft 4, connector 5, locking tooth structure 6, shift fork 7, anti-sharpening part 8, inner plastic frame 9, locking steel column 10, elastic reset connector 11, transverse spring 12, spring housing chamber 13, semi-circular part 141, arc part 142, long shift fork 15, transverse sliding plate 16, toothed part 17, base plate 18, slide groove 19, longitudinal spring 20, and cross-slot countersunk screw 21, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A comfortable outward-opening lever handle, comprising a base (1) and a rotatable handle (2), characterized in that, The base (1) is provided with a rotatable gear body (3), and the bottom of the handle (2) is provided with a main shaft (4). The main shaft (4) and the gear body (3) are connected by a connector (5). The base (1) is provided with a locking structure (6) that can reciprocate linearly along one end close to or away from the gear body (3). The base (1) is also provided with a shift fork (7) that can reciprocate linearly. The gear body (3) and the shift fork (7) mesh with each other. The end of the handle (2) has an anti-aggregate part (8).

2. The outward-opening lever handle with a comfortable grip according to claim 1, characterized in that, The locking structure (6) includes two inner plastic frames (9) disposed in the base (1). The inner plastic frames (9) are provided with locking steel columns (10). The locking steel columns (10) are positioned and matched with the gear body (3).

3. The outward-opening lever handle with a comfortable grip according to claim 2, characterized in that, An elastic reset connector (11) is provided between the locking steel column (10) and the inner plastic frame (9). The head of the locking steel column (10) is arc-shaped, and the locking steel column (10) is matched with the tooth gap of the gear body (3).

4. The outward-opening lever handle with a comfortable grip according to claim 3, characterized in that, The elastic reset connector (11) includes a transverse spring (12) disposed between the locking steel column (10) and the inner plastic frame (9). One end of the transverse spring (12) is connected to the tail of the locking steel column (10), and the other end is connected to the inner wall of the inner plastic frame (9).

5. The outward-opening lever handle with a comfortable grip according to claim 4, characterized in that, The inner plastic frame (9) has a spring mounting chamber (13), and the base (1) has a frame fixing groove with an opening facing the gear body (3). The inner plastic frame (9) is embedded in the frame fixing groove.

6. The outward-opening lever handle with a comfortable grip according to claim 1, characterized in that, The anti-agility part (8) includes a semi-circular part (141) and an arc part (142) disposed at the end of the handle (2).

7. The outward-opening lever handle with a comfortable grip according to claim 1, characterized in that, The shift fork component (7) includes a long shift fork (15) disposed in the base (1), the top of the long shift fork (15) is provided with a transverse plate (16), and the transverse plate (16) is provided with a toothed part (17) that meshes with the gear body (3).

8. A comfortable outward-opening lever handle according to claim 7, characterized in that, The base (1) has a bottom plate (18) at the bottom, and a sliding groove (19) is provided in the bottom plate (18). The long fork (15) passes through the sliding groove (19) and slides in cooperation with the sliding groove (19). The bottom plate (18) and the base (1) are fixed together by bolts.

9. A comfortable outward-opening lever handle according to claim 1, characterized in that, A longitudinal spring (20) is provided between the main shaft (4) and the handle (2).

10. A comfortable outward-opening lever handle according to claim 1, characterized in that, The connector (5) includes a cross-slot countersunk screw (21) disposed between the spindle (4) and the gear body (3).

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