Novel armrest angle adjusting mechanism
By designing the cooperation of square frames, positioning discs, rotating frames and toggle mechanisms, convenient angle adjustment of the handheld mechanism is achieved, solving the problem that traditional handheld mechanisms cannot be easily adjusted, and improving the functionality and operation convenience of the equipment.
Patent Information
- Application Number
- CN202420361972.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-27
AI Technical Summary
The traditional handheld mechanism cannot easily adjust the force angle during use, which affects the functionality of the device and equipment, and the installation and adjustment process is complicated, which increases labor intensity.
A new handrail angle adjustment mechanism including square frame, positioning disc, rotating frame, rotating shaft, limiting rod and toggle mechanism is designed. Through the cooperation of limiting rod and positioning disc, and combined with the toggle mechanism, convenient angle adjustment is achieved. and lock to reduce operation difficulty.
It improves the functionality of the use of equipment, simplifies the installation and operation process, reduces labor intensity, prevents division tripping, and meets different usage needs.
Smart Images
Figure CN222148180U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of armrest adjustment, and in particular relates to a novel armrest angle adjustment mechanism. Background Art
[0002] Gardening equipment such as lawn mowers, branch shredders, leaf blowers, or grinders used in decoration and renovation construction generally include a machine body for completing the corresponding processing work, a walking mechanism for facilitating the movement of the machine body, and a hand-held mechanism for holding the pushing device to move along the processing area.
[0003] At present, for the devices and equipment containing hand-held mechanisms and including but not limited to the above-mentioned ones, the traditional hand-held mechanisms are generally fixed, and the force angle cannot be conveniently adjusted during use, which affects the functionality of the device and equipment to a certain extent. With the continuous progress and development of society, new requirements have been made for the practicality of the hand-held mechanism, such as the position of the handrail can be appropriately adjusted to meet different usage requirements, but the hand-held mechanism in the prior art still has certain disadvantages: the commonly used angle adjustment method is mostly carried out by detachable bolt connection, that is, a disc that can be limited is set up, a limit hole is opened in the disc, and the fixation is achieved by the through connection of the bolt, and the hand-held mechanism is adjusted by adjusting the different positions of the bolt. Although this method can complete the free adjustment of its angle to a certain extent, the installation and adjustment process is relatively complicated, which greatly increases people's labor intensity and affects the work progress. For this reason, we provide a new handrail angle adjustment mechanism with reasonable design, simple structure, convenient processing and reliable indexing, convenient and flexible operation and operation, convenient installation, and a more intuitive positioning mechanism, and effectively prevents the possibility of indexing tripping. Utility Model Content
[0004] In response to the technical problems existing in the adjustment process of the above-mentioned handrail mechanism, the utility model proposes a new handrail angle adjustment mechanism with reasonable design, simple structure, convenient processing and reliable indexing, convenient and flexible operation and operation, easy installation, and a more intuitive positioning mechanism. It can also effectively prevent the possibility of indexing tripping, improve the functionality of the device, and meet the use needs.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is a novel armrest angle adjustment mechanism, including a machine body, a handhold mechanism is arranged on the upper side of the machine body, and an angle adjustment device is arranged at the connection between the machine body and the handhold mechanism, and the angle adjustment device includes a square frame connected to the machine body, a positioning plate is arranged on the square frame, a rotating frame is rotatably arranged between the two positioning plates, a rotating shaft is arranged on the upper part of the rotating frame, a connecting plate designed in a key shape is sleeved on the outer periphery of the rotating shaft, a sleeve is arranged on the other side of the connecting plate, a limiting rod is arranged in the sleeve, an arc groove is opened in the rotating frame corresponding to the limiting rod, a clamping groove is opened on the outer periphery of the positioning plate, and a toggle mechanism is arranged on the side located at the geometric center of the limiting rod.
[0006] Preferably, the toggle mechanism includes a toggle rod set in the rotating frame and designed in a Z shape, one end of the toggle rod extends to the outside of the rotating frame, a driving rod is provided on the toggle rod, a connecting rod is provided on the outer periphery of the limiting rod, an adapter groove designed in an arc shape is provided on the sleeve corresponding to the connecting rod, and a ball hinge seat is provided between the driving rod and the connecting rod.
[0007] Preferably, a buckling groove in a 7-shaped design is provided below the positioning plate.
[0008] Preferably, a torsion spring is sleeved on the rotating shaft located on one side of the connecting plate, one end of the torsion spring is buckled under the connecting plate, and correspondingly, the other end thereof abuts against the inner side of the rotating frame.
[0009] Preferably, the hand-holding mechanism comprises a handle which is arranged on the outer periphery of one side of the rotating frame away from the angle adjustment device and is designed in a trapezoidal shape.
[0010] Compared with the prior art, the advantages and positive effects of the utility model are:
[0011] 1. The utility model provides a novel angle adjustment mechanism for an armrest. Through the angle adjustment device provided, on the one hand, the cooperation between the limit rod and the clamping groove on the positioning plate is visualized, which is convenient for people to make convenient adjustments. On the other hand, it can reduce the difficulty of operation and is easy to use. Through the provided toggle mechanism, convenient conditions are provided for the free opening, closing and locking of the angle adjustment device, which reduces the difficulty of operation to a certain extent, improves the work process and meets the use requirements. The device has a reasonable design, a simple structure, convenient processing and reliable indexing, convenient and flexible operation and installation, and a more intuitive positioning mechanism, and effectively prevents the possibility of indexing tripping, thereby improving the functionality of the device and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.
[0013] Figure 1 It is a schematic diagram of the structure of the application of the utility model;
[0014] Figure 2 A schematic diagram of the internal structure of the angle adjustment device provided by the utility model;
[0015] Figure 3 A schematic diagram of the internal structure of the angle adjustment device provided by the utility model from another perspective;
[0016] Figure 4 A bottom view schematic diagram of the structure of the angle adjustment device provided by the utility model;
[0017] In the above figures, 1. body; 2. square frame; 3. positioning plate; 31. snap-fit groove; 32. buckle groove; 4. rotating frame; 41. arc groove; 5. rotating shaft; 6. connecting plate; 7. sleeve; 71. adapter groove; 8. limit rod; 9. toggle mechanism; 91. toggle rod; 92. driving rod; 93. connecting rod; 94. ball joint seat; 10. torsion spring; 11. handle. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0020] Examples, such as Figure 1 to Figure 4As shown, a novel armrest angle adjustment mechanism comprises a machine body 1, and a hand-held mechanism is arranged on the upper side of the machine body 1. It needs to be further explained that the armrest angle adjustment mechanism provided in this embodiment can be applied to most equipment with a hand-held mechanism, including but not limited to lawn mowers, branch shredders, leaf blowers, grinders, etc. The machine body 1 can be freely moved and adjusted under the push of the armrest mechanism to ensure the corresponding processing work. This embodiment aims to solve the problem of the inconvenience of the hand-held mechanism relative to the machine body 1 in the prior art. Specifically, a hand-held mechanism is arranged at the connection between the machine body 1 and the hand-held mechanism. There is an angle adjustment device, which includes a square frame 2 connected to the machine body 1, a positioning plate 3 is arranged on the square frame 2, a rotating frame 4 is arranged between the two positioning plates 3, and a rotating shaft 5 is arranged above the rotating frame 4, wherein, for the rotating shaft 5 established, it is a concentric rotating shaft 5, that is to say: the two ends of the components located inside are respectively connected to the rotating frame 4, and the components located outside can rotate relative to the inside and are fixedly connected to the connecting plate 6, the outer periphery of the rotating shaft 5 is sleeved with a connecting plate 6 designed in a key shape, and a sleeve 7 is arranged on the other side of the connecting plate 6, i.e., the upper side of the connecting plate 6 The upper end is fixedly connected to the outside of the rotating shaft 5, and the lower end is fixedly connected to the outer periphery of the sleeve 7. When the driving force of the toggle mechanism 9 is transmitted to the limit rod 8, the sleeve 7, the connecting plate 6 and the outer part of the rotating shaft 5 can rotate to adjust the position of the limit rod 8, so as to provide convenient conditions for the limit plate to be connected with the clamping groove 31 at different positions to meet the use requirements. A limit rod 8 is arranged in the sleeve 7, and an arc groove 41 is opened in the rotating frame 4 corresponding to the limit rod 8, wherein the opening of the arc groove 41 can provide convenient conditions for adjusting the position of the limit rod 8, and secondly, it can be rotated. The maximum moving range of the moving process plays a limiting role to avoid the possibility of falling off, etc., and improve the functionality of the device. The outer periphery of the positioning plate 3 is provided with a clamping groove 31. According to the opening of multiple groups of different clamping grooves 31, the limit rod 8 is adapted and clamped therewith, which can effectively complete the adjustment of the position of the hand-held mechanism, and the adjustment process is more convenient and has strong functionality. A toggle mechanism 9 is provided on one side of the geometric center of the limit rod 8, which provides convenient conditions for the free opening, closing and locking of the angle adjustment device, reduces the difficulty of operation to a certain extent, improves the working process, and meets the use requirements;The specific working principle and working method are described as follows: when in use, people hold the handle 11 with their hands and push the machine body 1 to meet the corresponding processing work use requirements. According to different personnel or different use requirements, when it is necessary to adjust the position of the hand-held mechanism, people hold the handle 11 with one hand and use the other hand to toggle the toggle mechanism 9, especially to move the toggle lever 91. Under the action of the driving rod 92 and the connecting rod 93, the limit rod 8 rotates relative to the rotating shaft 5 under the action of the connecting plate 6 and disengages from the clamping groove 31 of the positioning disk 3. At this time, people give the hand-held mechanism an upward or downward rotation force, so that the rotating frame 4 can be rotated and adjusted vertically relative to the positioning disk 3 until the limit rod 8 corresponds to the position of the clamping groove 31, and then release the toggle lever 91. Under the action of the torsion spring 10, the limit rod 8 moves to the clamping groove 31 to complete the locking between the hand-held mechanism and the machine body 1. The connection stability of the above-mentioned device is strong, which greatly reduces the difficulty of operation and meets the use requirements.
[0021] In the above process: through the angle adjustment device that is set up, on the one hand, the cooperation between the limit rod 8 and the clamping groove 31 on the positioning plate 3 is visualized, which is convenient for people to make convenient adjustments. On the other hand, it can reduce the difficulty of operation and is easy to use. Through the set toggle mechanism 9, convenient conditions are provided for the free opening and closing and locking of the angle adjustment device, which reduces the difficulty of operation to a certain extent, improves the work progress, and meets the use requirements. The device has a reasonable design, simple structure, convenient processing and reliable indexing, convenient and flexible operation and installation, and a more intuitive positioning mechanism, and effectively prevents the possibility of indexing tripping, thereby improving the functionality of the device and meeting the use requirements.
[0022] In order to provide favorable power for the angle adjustment device and bring convenience to the adjustment of the angle position of the equipment, the toggle mechanism 9 includes a toggle rod 91 set in the rotating frame 4 and designed in a Z shape. One end of the toggle rod 91 passes through the outside of the rotating frame 4. A driving rod 92 is arranged on the toggle rod 91. A connecting rod 93 is arranged on the outer periphery of the limiting rod 8. An adapter groove 71 designed in an arc shape is provided on the sleeve 7 corresponding to the connecting rod 93, wherein the connecting rod 93 passes through the adapter groove 71. This design can also limit the moving distance of the driving rod 92 to a certain extent. A ball hinge seat 94 is arranged between the driving rod 92 and the connecting rod 93. When the driving rod 92 is used to act on the connecting rod 93, especially the limiting rod 8, the establishment of the ball hinge seat 94 makes it easier to transmit the driving power. The invention relates to a method for adjusting the angle of the device 4 so that the user can adjust the angle of the device 4 by moving the lever 91 in a direction close to the handle 11. The method of adjusting the angle of the device 4 is described in detail as follows: one end of the lever 91 located in the rotating frame 4 is rotatably connected to the inner side of the rotating frame 4, and the other end of the lever 91 extends to the outer side of the rotating frame 4 so that people can apply force to move it. The connection between the driving rod 92 and the lever 91 is also rotatably connected. When people move the lever 91 in the direction close to the handle 11, the driving rod 92 can be driven to move outward. At the same time, the driving power acts on the connecting rod 93 and the limiting rod 8 through the ball hinge seat 94. In this way, the limiting rod 8 can be rotated relative to the rotating shaft 5 under the action of the connecting rod 93, so that the limiting rod 8 is away from the clamping groove 31, so as to realize the loosening of the angle adjustment device. The device is locked after the device completes the adjustment of its position. The device is simple and convenient to operate and has strong functionality.
[0023] In order to effectively improve the functionality of the device, a snap-fit groove 32 in the shape of a 7 is provided under the positioning plate 3. The specific description is as follows: the snap-fit groove 32 is set up to facilitate the angle adjustment device to fold the hand-held mechanism downward. The specific working method and working principle are the same as the process of its position. The difference is that after the limit rod 8 is matched with the snap-fit groove 32, the rotating frame 4 and the hand-held mechanism are relatively in the vertical direction, so that they can be folded up, which is convenient for the subsequent transportation of the equipment. The structure of the device is more compact and the functionality is strong.
[0024] In order to improve the rationality of the device, a torsion spring 10 is also sleeved on the rotating shaft 5 located on one side of the connecting plate 6. One end of the torsion spring 10 is buckled under the connecting plate 6, and correspondingly, the other end thereof abuts against the inner side of the rotating frame 4. The specific description is as follows: the torsion spring 10 is for the angle adjustment device to facilitate the corresponding reset action after completing the adjustment of its position. That is to say, the toggle mechanism 9 drives the limit rod 8 and the connecting plate 6 to rotate. During this process, the upper part of the torsion spring 10 is limited by the rotating frame 4, and the lower part thereof can rotate together with the connecting plate 6 and compress the torsion spring 10. After the position adjustment is completed, the external force is removed, the torsion spring 10 is reset, and can drive the limit rod 8 to a certain extent to move toward the position close to the clamping groove 31, thereby ensuring the clamping stability between the equipment components and preventing them from being offset, so as to meet the use requirements.
[0025] In order to facilitate the movement and adjustment of the machine body 1 along the processing area to ensure the smooth progress of the production and processing work, the hand-held mechanism includes a handle 11 designed in a trapezoidal shape and set on the outer periphery of one side of the rotating frame 4 away from the angle adjustment device. The specific description is: the handle 11 is composed of two parts, the trapezoidal part is fixedly connected to the two sides of the rotating frame 4, and an extension part is set below the end of both sides for the convenience of placing the hands of people, and it is in an eccentric position with the rotating frame 4. This design improves the convenience of people's hand placement, improves comfort, and ensures usage needs.
[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A novel armrest angle adjustment mechanism, comprising a machine body, wherein a hand-holding mechanism is arranged on one side above the machine body. It is characterized in that An angle adjustment device is provided at the connection between the machine body and the hand-held mechanism, and the angle adjustment device includes a square frame connected to the machine body, a positioning plate is provided on the square frame, a rotating frame is rotatably provided between the two positioning plates, a rotating shaft is provided on the upper part of the rotating frame, a connecting plate designed in a key shape is sleeved on the outer periphery of the rotating shaft, a sleeve is provided on the other side of the connecting plate, a limiting rod is provided in the sleeve, an arc groove is provided in the rotating frame corresponding to the limiting rod, a clamping groove is provided on the outer periphery of the positioning plate, and a toggle mechanism is provided on one side of the geometric center of the limiting rod.
2. According to the novel armrest angle adjustment mechanism of claim 1, It is characterized in that The toggle mechanism includes a toggle rod set in the rotating frame and designed in a Z shape, one end of the toggle rod extends to the outside of the rotating frame, a driving rod is arranged on the toggle rod, a connecting rod is arranged on the outer periphery of the limiting rod, an adapter groove designed in an arc shape is opened on the sleeve corresponding to the connecting rod, and a ball hinge seat is arranged between the driving rod and the connecting rod.
3. According to the novel armrest angle adjustment mechanism of claim 2, It is characterized in that A buckling groove in a 7-shaped design is also provided below the positioning plate.
4. According to the novel armrest angle adjustment mechanism of claim 3, It is characterized in that A torsion spring is also sleeved on the rotating shaft located on one side of the connecting plate. One end of the torsion spring is buckled under the connecting plate, and correspondingly, the other end thereof abuts against the inner side of the rotating frame.
5. According to the novel armrest angle adjustment mechanism of claim 4, It is characterized in that The hand-holding mechanism comprises a handle which is arranged on the outer periphery of one side of the rotating frame away from the angle adjustment device and is designed in a trapezoidal shape.