Eccentric lever handle

Abstract

An eccentric lever handle comprises a base, a handle body and a rotating shaft, a mounting cavity is formed in the base, a driving component is arranged in the mounting cavity, the handle body drives the rotating shaft to rotate through the driving component, the driving component comprises a shifting wheel linked with the handle body, the shifting wheel is linked with a rack sliding block capable of linearly moving in the mounting cavity, and the rack sliding block is in linkage with the mounting cavity. The rack sliding block is in linkage with a driving wheel used for driving the rotating shaft to rotate. According to the lever handle, the handle body, the shifting wheel, the rack sliding block and the driving wheel are tightly cooperated, a more stable overall structure is constructed, the situation that the strength is insufficient due to the fact that the installation position is too narrow is avoided, and therefore the use safety and durability of the lever handle are improved. The lever handle can achieve the maximum operation space in the limited space, compared with a traditional square shaft lever handle, the eccentric lever handle saves the design and installation space, and the requirements of door and window structures can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a eccentric handle and belongs to the door and window device field. BACKGROUND

[0002] With the continuous improvement of energy saving requirements, the thickness of aluminum alloy door and window profile is thickened, and in order to improve the overall lighting effect of the door and window, the facade size of the door and window cannot be widened, resulting in that the installation position of the door and window handle is too narrow. The overall structure of the conventional outward opening window square shaft handle is unstable due to the size limitation, and in order to solve the above problems, an eccentric handle capable of expanding the handle structure space is urgently needed. SUMMARY

[0003] The utility model aims at overcoming the shortcomings and deficiencies of the prior art and provides an eccentric handle.

[0004] An eccentric handle, comprising a base, a handle and a rotating shaft, the base is provided with an installation cavity, the installation cavity is provided with a driving component, the handle drives the rotating shaft to rotate through the driving component, the driving component comprises a dial wheel linked with the handle, the dial wheel is linked with a rack slider capable of moving linearly in the installation cavity, and the rack slider is linked with a driving wheel for driving the rotating shaft to rotate. Through the close cooperation between the handle, the dial wheel, the rack slider and the driving wheel, a more stable overall structure is constructed, and the insufficient strength caused by the too narrow installation position is avoided, thereby improving the use safety and durability of the handle. The handle can realize the maximum operation space in the limited space, compared with the traditional square shaft handle, the eccentric handle saves the design and installation space, and can better adapt to the requirements of the door and window structure. Due to the linear movement characteristics of the rack slider and the precise cooperation of the dial wheel and the driving wheel, the eccentric handle can realize more accurate control in actual operation, so that the operation of opening and closing the door and window is more convenient.

[0005] Preferably, the dial wheel is provided with a dialing part, the rack slider is provided with a clamping groove matched with the dialing part, and the dialing part drives the rack slider to move linearly and drives the driving wheel to rotate through the dialing action in the clamping groove. The cooperation design of the dialing part and the clamping groove ensures the accurate linear movement of the rack slider during dialing. This direct and accurate control method can effectively improve the response speed of the rotating shaft and ensure that the opening and closing process of the door and window is more stable and reliable. The design of the clamping groove provides a stable guiding effect for the dialing part, effectively avoids the deviation or shaking phenomenon during operation, so that the handle maintains stable performance during long-term use, prolonging the service life of the assembly.

[0006] Further, the clamping groove is located in the middle of the rack slider, and the bottom is arc-shaped, and the poking part is cylindrical which matches the arc-shaped clamping groove. The arc-shaped clamping groove and the cylindrical poking part matched with it can form a more smooth contact interface during operation, so as to realize a more stable poking action, reduce the friction in the operation process, and improve the smoothness of the overall movement. The cooperation between the arc-shaped clamping groove and the cylindrical poking part can automatically realize self-centering. Even if there is a slight deviation during operation, it can quickly recover to the appropriate position, ensuring that the poking part remains accurately positioned in the clamping groove and improving the accuracy of the operation.

[0007] Preferably, the clamping groove is U-shaped, so that the poking part can slide relative to the clamping groove to drive the rack slider to move. Through the relative sliding between the poking part and the U-shaped clamping groove, the poking action can be more efficiently converted into the linear movement of the rack slider.

[0008] Preferably, the rack slider is provided with a first sliding block and a second sliding block, and the base is provided with a bottom cover, and the bottom cover is provided with a first sliding groove and a second sliding groove which are respectively in sliding cooperation with the first sliding block and the second sliding block. The sliding of the first sliding block and the second sliding block in the first sliding groove and the second sliding groove can ensure that the linear movement path of the rack slider is more stable. Guiding the movement of the sliding block reduces the swing and vibration during movement, improving the accuracy and reliability of the operation.

[0009] Further, the bottom cover is fixedly provided with a bolt extending into the base on both sides, and the rack slider is provided with a limiting groove cooperating with the bolt on both sides. The cooperation of the bolt and the limiting groove effectively limits the activity range of the rack slider, ensuring that it will not exceed the predetermined operation range during linear movement. The existence of the limiting groove ensures that the rack slider will not deviate during movement,

[0010] Further, the rack slider is distributed with first meshing teeth at the bottom, the driving wheel is provided with second meshing teeth which are in meshing cooperation with the first meshing teeth, and the rotating shaft is fixedly arranged on the driving wheel. Due to the design of the rack slider, the size and number of meshing teeth can be adjusted according to actual needs, so as to flexibly change the force and speed of operation, and adapt to different door and window materials and use scenarios.

[0011] Preferably, the outer wall of the poking wheel is uniformly distributed with a plurality of butt joints, the mounting cavity is provided with a butt joint cavity located on both sides of the poking wheel, the butt joint cavity is provided with a spring, one end of the spring abuts against the bottom of the butt joint cavity, and the other end abuts against a limiting column matched with the butt joint. The design of the butt joint and the limiting column can form clear positioning when the poking wheel rotates, providing a soft rebound effect for the poking wheel, so that the poking wheel can quickly return to the initial position after operation is completed.

[0012] Further, the docking groove is in the shape of an open type with a small inner diameter and a large outer diameter. The shape with a small inner diameter and a large outer diameter provides a self-guiding effect, so that the limiting column can better find the corresponding docking groove position when the dial wheel rotates.

[0013] Preferably, the dial wheel is provided with a dial groove, the dial groove is in the shape of a polygon, and the handle is provided with a driving shaft matched with the dial groove for driving the dial wheel. The polygonal groove structure can effectively increase the contact surface with the driving shaft, strengthen the bonding force therebetween, reduce the possible sliding or skidding during heavy operation, and improve the safety and reliability of operation.

[0014] The utility model discloses the following beneficial effects: through the close cooperation between handle, dial wheel, rack slider and driving wheel, a more stable overall structure is built, the strength deficiency caused by the too narrow installation position is avoided, thereby the use safety and durability of the handle are improved. The handle can realize the maximum operation space in the limited space, compared with the traditional square shaft handle, the eccentric handle saves the design and installation space, and can better adapt to the demand of the door and window structure. Due to the linear movement characteristics of the rack slider, the precise cooperation of the dial wheel and the driving wheel, the eccentric handle can realize more accurate control in actual operation, and the operation of opening and closing the door and window is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, according to these drawings, other drawings obtained without creative labor still belong to the scope of the utility model.

[0016] Figure 1 It is the main structure diagram of the utility model;

[0017] Figure 2 It is the explosion structure diagram of the utility model;

[0018] Figure 3 It is the structure diagram of the removed part structure;

[0019] Figure 4 It is Figure 3 It is the structure diagram of another view;

[0020] Figure 5 It is the sectional view of the utility model;

[0021] In the diagram, 1 is the base; 11 is the mounting cavity; 12 is the docking cavity; 13 is the spring; 14 is the limiting post; 15 is the bottom cover; 151 is the first sliding groove; 152 is the second sliding groove; 16 is the bolt; 2 is the handle; 21 is the drive shaft; 3 is the rotating shaft; 4 is the drive component; 41 is the actuating wheel; 411 is the actuating part; 412 is the docking groove; 413 is the actuating groove; 42 is the rack and pinion slider; 421 is the snap-fit ​​groove; 422 is the first sliding block; 423 is the second sliding block; 424 is the limiting groove; 425 is the first meshing tooth; 43 is the drive wheel; and 431 is the second meshing tooth. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0023] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0024] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0025] like Figures 1-5 As shown, this is an embodiment of an eccentric handle according to the present invention, including a base 1, a handle 2, and a rotating shaft 3. The base 1 has a mounting cavity 11, and a driving component 4 is located within the mounting cavity 11. The handle 2 drives the rotating shaft 3 to rotate via the driving component 4. The driving component 4 includes a turntable 41 linked to the handle 2, a rack and pinion slider 42 that can move linearly within the mounting cavity 11, and a driving wheel 43 that drives the rotating shaft 3 to rotate. By closely cooperating with the handle 2, turntable 41, rack and pinion slider 42, and driving wheel 43, a more stable overall structure is constructed, avoiding insufficient strength due to a narrow installation position, thereby improving the safety and durability of the handle. The handle can achieve maximum operating space within a limited space. Compared to traditional square shaft handles, eccentric handles save design and installation space and can better adapt to the needs of door and window structures. Due to the linear movement characteristics of the rack and pinion slider 42, combined with the precise coordination of the actuating wheel 41 and the drive wheel 43, the eccentric handle can achieve more precise control in actual operation, making the operation of opening and closing doors and windows more convenient.

[0026] The dialing wheel 41 is provided with a dialing part 411, and the rack slider 42 is provided with a clamping groove 421 matched with the dialing part 411. The dialing part 411 drives the rack slider 42 to move linearly and drives the driving wheel 43 to rotate through the dialing action in the clamping groove 421. The matching design of the dialing part 411 and the clamping groove 421 ensures the accurate linear movement of the rack slider 42 during dialing. This direct and accurate control method can effectively improve the response speed of the rotating shaft 3 and ensure that the opening and closing process of the door and window is more stable and reliable. The design of the clamping groove 421 provides stable guiding effect for the dialing part 411, effectively avoiding the deviation or shaking phenomenon during operation, so that the handle maintains stable performance during long-term use, prolonging the service life of the assembly.

[0027] The clamping groove 421 is located in the middle of the rack slider 42, and the bottom is arc-shaped. The dialing part 411 is cylindrical and matches the arc-shaped clamping groove 421. The arc-shaped clamping groove 421 and the cylindrical dialing part 411 matched with it can form a smoother contact interface during operation, thereby realizing a more stable dialing action, reducing the friction during operation, and improving the smoothness of the overall movement. The cooperation between the arc-shaped clamping groove 421 and the cylindrical dialing part 411 can automatically realize self-centering. Even if there is a slight deviation during operation, it can quickly recover to the appropriate position, ensuring that the dialing part 411 remains accurately positioned in the clamping groove 421, improving the accuracy of the operation.

[0028] The clamping groove 421 is U-shaped, so that the dialing part 411 can slide relative to the clamping groove 421 to drive the rack slider 42 to move. Through the relative sliding between the dialing part 411 and the U-shaped clamping groove 421, the dialing action can be more efficiently converted into the linear movement of the rack slider 42.

[0029] The rack slider 42 is provided with a first sliding block 422 and a second sliding block 423, and the base 1 is provided with a bottom cover 15. The bottom cover 15 is provided with a first sliding groove 151 and a second sliding groove 152 which are respectively matched with the first sliding block 422 and the second sliding block 423. The first sliding block 422 and the second sliding block 423 slide in the first sliding groove 151 and the second sliding groove 152, which can ensure that the linear motion path of the rack slider 42 is more stable. Guiding the movement of the sliding block reduces the swing and vibration during movement, improving the accuracy and reliability of the operation.

[0030] The bottom cover 15 is fixed with a bolt 16 extending into the base 1 on both sides, and the rack slider 42 is provided with a limiting groove 424 on both sides for limiting the bolt 16. The cooperation of the bolt 16 and the limiting groove 424 effectively limits the movement range of the rack slider 42, ensuring that it will not exceed the predetermined operating range when moving linearly. The presence of the limiting groove 424 ensures that the rack slider 42 will not deviate during movement,

[0031] The rack slider 42 is provided with first engagement teeth 425 on the bottom, and the driving wheel 43 is provided with second engagement teeth 431 engaging with the first engagement teeth 425, and the rotating shaft 3 is fixed on the driving wheel 43. Due to the design of the rack slider 42, the size and number of engagement teeth can be adjusted according to actual needs, thereby flexibly changing the operating force and speed to adapt to different door and window materials and use scenarios.

[0032] The outer wall of the dial wheel 41 is uniformly provided with a plurality of butt joints 412, the installation cavity 11 is provided with a butt joint cavity 12 on both sides of the dial wheel 41, the butt joint cavity 12 is provided with a spring 13, one end of the spring 13 abuts against the bottom of the butt joint cavity 12, and the other end abuts against a limiting column 14 matched with the butt joint groove 412. The design of the butt joint groove 412 and the limiting column 14 can form clear positioning when the dial wheel 41 rotates, providing a soft rebound effect for the dial wheel 41, so that the dial wheel 41 can quickly return to the initial position after operation is completed.

[0033] The butt joint groove 412 is in an open type shape with a small inner diameter and a large outer diameter. The shape with a small inner diameter and a large outer diameter provides a self-guiding effect, so that the limiting column 14 can better find the corresponding butt joint groove 412 position when the dial wheel 41 rotates.

[0034] The dial wheel 41 is provided with a dial groove 413, the dial groove 413 is in a polygonal shape, and the handle 2 is provided with a driving shaft 21 matched with the dial groove 413 for driving the dial wheel 41. The structure of the polygonal groove can effectively increase the contact surface with the driving shaft 21, strengthen the bonding force between the two, reduce the sliding or slipping that may be caused by forceful operation, and improve the safety and reliability of operation.

[0035] The above disclosure is only a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

[0036] Although the utility model has been described with reference to a number of specific embodiments, it should be understood that the utility model is not limited to the disclosed specific embodiments. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An eccentric grip, characterized in that: The device includes a base, a handle, and a rotating shaft. The base has a mounting cavity, and the mounting cavity contains a driving component. The handle drives the rotating shaft to rotate via the driving component. The driving component includes a dial wheel that is linked to the handle. The dial wheel is linked to a rack and pinion slider that can move linearly within the mounting cavity. The rack and pinion slider is linked to a driving wheel for driving the rotating shaft to rotate.

2. The eccentric handle as described in claim 1, characterized in that: The actuating wheel is provided with an actuating part, and the rack slider is provided with a locking groove that cooperates with the actuating part. The actuating part drives the rack slider to move linearly and drive the drive wheel to rotate by actuating action in the locking groove.

3. The eccentric handle as described in claim 2, characterized in that: The locking groove is located in the middle of the rack and pinion slider, and its bottom is arc-shaped. The actuating part is cylindrical to match the arc shape.

4. The eccentric handle as described in claim 2, characterized in that: The U-shaped locking groove allows the actuating part to slide relative to the locking groove, driving the rack and slider to move.

5. The eccentric handle as described in claim 1, characterized in that: The rack and pinion slider is provided with a first sliding block and a second sliding block, and the base is provided with a bottom cover. The bottom cover is provided with a first sliding groove and a second sliding groove that respectively slide and engage with the first sliding block and the second sliding block.

6. The eccentric handle as described in claim 5, characterized in that: The bottom cover is fixed with bolts extending into the base on both sides, and the rack slider is provided with limiting grooves on both sides that cooperate with the bolts to limit the movement.

7. The eccentric handle as described in claim 5, characterized in that: The bottom of the rack slider has a first meshing tooth, the drive wheel has a second meshing tooth that meshes with the first meshing tooth, and the rotating shaft is fixedly mounted on the drive wheel.

8. The eccentric handle as described in claim 1, characterized in that: The outer wall of the actuating wheel is evenly distributed with several mating grooves. The mounting cavity is provided with mating cavities located on both sides of the actuating wheel. A spring is provided in the mating cavity. One end of the spring abuts against the bottom of the mating cavity, and the other end abuts against a limiting post that matches the mating groove.

9. The eccentric handle as described in claim 8, characterized in that: The docking groove has an open shape that is smaller on the inside and larger on the outside.

10. The eccentric handle as described in claim 1 or 8, characterized in that: The actuating wheel is provided with an actuating groove, which is polygonal, and the handle is provided with a drive shaft that matches the actuating groove for driving the actuating wheel.

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