Adjustable power assisting device and door and window

Abstract

The utility model discloses an adjustable power assisting device and a door and window. The adjustable power assisting device comprises a transmission mechanism, an elastic piece and an adjusting mechanism. The elastic piece is provided with a movable end and a fixed end; the transmission mechanism is in transmission connection with the movable end of the elastic piece, and the adjusting mechanism is in transmission connection with the fixed end of the elastic piece. When the adjusting mechanism moves, the fixed end is driven to move in the length direction of the elastic piece, so that the distance between the movable end and the fixed end is adjustable. By additionally arranging the elastic piece with adjustable elasticity, potential energy can be stored and released, the elastic piece is connected with the transmission mechanism, so that assistance can be provided for opening of doors and windows, the elastic potential energy of the elastic piece can be adjusted through the adjusting mechanism, the assistance strength is adjusted, the door and window opening portability is greatly improved, and the user experience is improved; and the device is suitable for different people.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to an adjustable assist device and a door / window. Background Technology

[0002] With the continuous development of the construction industry and people's increasing demands for quality of life, doors and windows play an extremely important role in various buildings. On the one hand, in order to ensure the insulation, soundproofing, and security performance of buildings, the structure of doors and windows is becoming more and more complex, and their size is also increasing, resulting in a corresponding increase in their weight. On the other hand, in actual use, different user groups, such as the elderly, children, and adults with different physical strength, have different tolerances and operating habits for the force required to open and close doors and windows.

[0003] Traditional door and window handles often only provide simple transmission and operation functions. When faced with heavy or difficult-to-operate doors and windows, users need to exert a lot of effort to open them, which brings a lot of inconvenience to daily use. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology in terms of the inconvenience of opening doors and windows, and to provide an adjustable assist device and doors and windows.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides an adjustable assist device, including: a transmission mechanism, an elastic element, and an adjustment mechanism; the elastic element has a movable end and a fixed end; the transmission mechanism is tractively connected to the movable end of the elastic element, and the adjustment mechanism is tractively connected to the fixed end of the elastic element; when the adjustment mechanism is active, it drives the fixed end to move along the length direction of the elastic element, so that the distance between the movable end and the fixed end is adjustable.

[0007] In one embodiment, the adjustable assist device further includes a housing with a sliding groove, the transmission mechanism and the elastic element being installed along the length of the sliding groove; the adjustment mechanism includes a support base; the support base is also installed in the sliding groove and connected to the fixed end of the elastic element.

[0008] In one embodiment, the adjustment mechanism further includes an adjustment component, which is mounted on the housing and extends into the sliding groove, and is also kinetically connected to the support base.

[0009] In one embodiment, the adjusting mechanism further includes a connecting screw installed in the sliding groove, the adjusting assembly being drivenly connected to the end of the connecting screw away from the elastic element, and the support seat being threadedly connected to the end of the connecting screw close to the elastic element.

[0010] In one embodiment, the connecting screw includes a rotary transmission part and a screw body connected to the rotary transmission part; the adjusting assembly is drivenly connected to the rotary transmission part, and the support seat is threadedly connected to the screw body.

[0011] In one embodiment, the adjusting component includes a transmission gear disposed near the rotary transmission part, and the rotary transmission part has a toothed end near one end of the adjusting component, the transmission gear engaging with the toothed end.

[0012] In one embodiment, the adjustment assembly further includes a knob and a connecting shaft. The housing has a through hole, one end of the connecting shaft extends into the sliding groove and is connected to the transmission gear, and the other end is connected to the knob, which is located in the through hole.

[0013] In one embodiment, the adjustment mechanism further includes a mounting base located within the sliding groove and connected to the housing. The mounting base has a mounting groove, and both the transmission gear and the rotary transmission part are located within the mounting groove.

[0014] In one embodiment, the elastic element is a spring.

[0015] This utility model also provides a door or window, which includes the adjustable assist device as described in any of the preceding claims.

[0016] The adjustable assist device and doors / windows of this invention offer several advantages over existing technologies. By incorporating an elastic element with an adjustable distance between its movable and fixed ends, it can store and release elastic potential energy. Combined with a transmission mechanism that operates via a handle, when the handle is rotated, force is transmitted through the transmission mechanism to the movable end of the elastic element. The elastic element, with its adjustable distance between the movable and fixed ends, can flexibly change its elastic potential energy state according to the adjustment mechanism's control of the fixed end. This stored and released elastic potential energy then generates a counterforce on the handle during door / window opening and closing operations, assisting in effortless and convenient operation. Furthermore, the adjustable mechanism allows for on-demand adjustment of the elastic element, thereby adjusting the assist level to suit individual user needs. This significantly enhances the user experience, facilitating independent operation of doors and windows by different groups of people.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the adjustable assist device when the elastic element provided by this utility model is a compression spring;

[0020] Figure 2 for Figure 1 Explosion illustration Figure 1 ;

[0021] Figure 3 for Figure 1 Explosion illustration Figure 2 ;

[0022] Figure 4 for Figure 1 A cross-sectional view of an adjustable assist device when the elastic element is in a stored state;

[0023] Figure 5 for Figure 1 A cross-sectional view of an adjustable assist device when the elastic element is in the assist state;

[0024] Figure 6 for Figure 1 A schematic diagram of the connecting screw and elastic element in the diagram;

[0025] Figure 7 A schematic diagram of the adjustable assist device when the elastic element provided by this utility model is a tension spring;

[0026] Figure 8 for Figure 7 Explosion illustration Figure 1 ;

[0027] Figure 9 for Figure 7 Explosion illustration Figure 2 ;

[0028] Figure 10 for Figure 7 A cross-sectional view of an adjustable assist device when the elastic element is in a stored state;

[0029] Figure 11 for Figure 7 A cross-sectional view of an adjustable assist device when the elastic element is in the assist state;

[0030] Figure 12 for Figure 7 A schematic diagram of the connecting screw and elastic element in the diagram;

[0031] Figure 13 A schematic diagram of the structure of the adjustment component provided by this utility model. Attached Figure Description

[0033] 1. Transmission mechanism; 11. Movable seat; 12. Second hook; 2. Elastic element; 3. Adjustment mechanism; 31. Support seat; 311. First hook; 32. Adjustment assembly; 321. Transmission gear; 322. Knob; 323. Connecting shaft; 33. Connecting screw; 331. Rotary transmission part; 3311. Gear end; 332. Screw body; 34. Mounting seat; 4. Housing; 5. Sliding groove. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0041] See Figures 1 to 13 As shown, this utility model discloses a specific embodiment of an adjustable assist device, including: a transmission mechanism 1, an elastic element 2, and an adjustment mechanism 3; the elastic element 2 has a movable end (not shown in the figure) and a fixed end (not shown in the figure); the transmission mechanism 1 is driven to the movable end of the elastic element 2, and the adjustment mechanism 3 is driven to the fixed end of the elastic element 2; when the adjustment mechanism 3 is active, it drives the fixed end to move along the length direction of the elastic element 2, so that the distance between the movable end and the fixed end is adjustable.

[0042] Specifically, the adjustable assist device in this embodiment is used for opening and closing doors and windows. The transmission mechanism 1 is driven by the handle. The user can change the position of the fixed end by operating the adjustment mechanism 3, thereby adjusting the initial distance between the movable end and the fixed end, and setting the initial elastic potential energy state of the elastic element 2, that is, determining the initial assist force, to adapt to different door and window specifications, weights, and usage habits. When it is necessary to close the door or window, the user rotates the handle, and the force generated by the handle is transmitted to the movable end of the elastic element 2 through the transmission mechanism 1, causing the elastic element 2 to deform and store elastic potential energy (i.e., the elastic element 2 is in a charged state). During this process, the elastic potential energy will generate a reverse force on the movable end. When it is necessary to open the door or window, the elastic element 2, affected by the elastic potential energy, wants to return to the initially set state. During this reset process, the elastic element 2 is in an assist state. At this time, the reverse force is reflected back onto the handle through the transmission mechanism 1, thereby assisting the handle in completing the opening action of the door or window, reducing the external force required by the user during operation, and achieving an assist effect. Once the door and window operation is completed and the external force is removed, the elastic element 2 returns to its initial state based on its own elastic restoring force, waiting for the next operation.

[0043] This embodiment incorporates an elastic element 2 with an adjustable distance between its movable and fixed ends. This allows for the storage and release of elastic potential energy. One end of the transmission mechanism 1 is connected to the handle, and the other end is connected to the movable end of the elastic element 2. When the handle is rotated, force is transmitted through the transmission mechanism 1 to the movable end of the elastic element 2. The elastic element 2, with its adjustable distance between the movable and fixed ends, can flexibly change its elastic potential energy state according to the adjustment mechanism 3's control over the fixed end. This stored and released elastic potential energy then generates a counterforce on the handle during door and window opening and closing operations, assisting in effortless and convenient operation. Furthermore, the adjustment mechanism 3 allows for the adjustment of the elastic element 2 as needed, thereby adjusting the assistance level to suit individual user preferences. This significantly enhances the user experience, facilitating independent operation of doors and windows by different groups of people.

[0044] It is understood that the transmission connection between the handle and the transmission mechanism 1 in this application adopts a commonly used technical means in the prior art, so it will not be described in detail below.

[0045] In one specific embodiment, the adjustable assist device further includes a housing 4, which is provided with a sliding groove 5. The transmission mechanism 1 and the elastic element 2 are installed along the length direction of the sliding groove 5. The adjustment mechanism 3 includes a support base 31. The support base 31 is also installed in the sliding groove 5 and connected to the fixed end of the elastic element 2.

[0046] Specifically, the housing 4 and sliding groove 5 provide a stable mounting base and defined movement path for each key component, preventing displacement or shaking during operation. This makes force transmission more stable and reliable, extending the lifespan of the entire adjustable assist device and reducing the probability of malfunctions caused by component misalignment. The support 31 of the adjustment mechanism 3 is positioned using the sliding groove 5, allowing for more precise changes to the fixed end position, thus enabling more delicate and accurate adjustment of the assist force. This allows the device to better adapt to the subtle differences in different doors and windows and the more refined requirements of users for assist levels, optimizing the user experience. Utilizing the sliding groove 5 on the housing 4 to integrate the installation positions of the transmission mechanism 1, elastic element 2, and adjustment mechanism 3 allows for an orderly arrangement of components within a limited space, avoiding space waste and mutual interference problems that could result from arbitrary component placement. This contributes to a more compact device structure, facilitating installation on doors and windows and adapting to the internal structural spaces of different doors and windows, thus improving the overall practicality and adaptability of the device.

[0047] See Figure 1 , Figure 9 and Figure 13 As shown, in one specific embodiment, the adjustment mechanism 3 further includes an adjustment component 32, which is installed in the housing 4 and extends into the sliding groove 5. The adjustment component 32 is also kinetically connected to the support base 31.

[0048] Specifically, by adding an adjustment component 32 and installing it in the housing 4, extending into the sliding groove 5 and connecting it with the support base 31, a structure is constructed that can be operated externally to the housing 4 while controlling the support base 31 located within the sliding groove 5. Utilizing the transmission relationship between the adjustment component 32 and the support base 31, the operating force applied externally to the adjustment component 32 is converted into a force that changes the position of the support base 31. This allows for precise adjustment of the support base 31's position within the sliding groove 5 without direct contact, enabling users to flexibly adjust the position of the fixed end of the elastic element 2 according to actual needs, thereby controlling the assist force. This convenient external operation method greatly simplifies the operation process, reduces operational difficulty, and saves time and effort, whether during the initial installation and debugging phase or during routine adjustments. The transmission connection between the adjustment component 32 and the support base 31, combined with the guiding effect of the sliding groove 5 on the movement of the support base 31, makes the adjustment of the support base 31's position more precise and refined. Users can fine-tune the position of the support base 31 by slightly adjusting the adjustment component 32 based on their actual experience, thereby precisely controlling the assistance force. This better adapts to the personalized requirements of different doors and windows and different users regarding the level of assistance, improving the overall adjustment performance and adaptability of the device. Furthermore, by integrating the adjustment function into the adjustment component 32 on the outside of the housing 4, the internal structure of the entire device is more concise and orderly, avoiding excessive exposed adjustment parts or complex operating interfaces that would affect the overall appearance of the device. At the same time, this integrated design, while ensuring the adjustment function, enhances the integration of the device, making it more aesthetically pleasing and simpler after installation on doors and windows, meeting the modern product requirements for aesthetics and overall unity.

[0049] See Figures 1 to 12 As shown, in one specific embodiment, the adjusting mechanism 3 further includes a connecting screw 33 installed in the sliding groove 5, the adjusting component 32 is throttle-connected to the end of the connecting screw 33 away from the elastic member 2, and the support seat 31 is threadedly connected to the end of the connecting screw 33 close to the elastic member 2.

[0050] Specifically, by setting a connecting screw 33 within the sliding groove 5, and connecting the adjusting component 32 to one end of the connecting screw 33 via a transmission connection, and threading the support base 31 to the other end of the connecting screw 33, the principle of screw drive is cleverly utilized. Screw drive has the characteristic of converting rotational motion into linear motion. When the adjusting component 32 is subjected to external force and rotates, it drives the connecting screw 33 to rotate. Since the support base 31 and the connecting screw 33 are threadedly connected, the rotation of the screw causes the support base 31 to move linearly along the axial direction of the screw (that is, the length direction of the sliding groove 5), thereby achieving precise control of the position of the support base 31, and thus accurately adjusting the position of the fixed end of the elastic element 2 to change the assist force. The support base 31 and the connecting screw 33 are connected by a thread. The thread pitch and other parameters determine the distance the support base 31 moves on the screw for each rotation angle. This precise correspondence ensures the stability and accuracy of the position adjustment of the support base 31. Meanwhile, the threaded connection has a self-locking characteristic. Without continuous external force driving the connecting screw 33 to rotate, the support base 31 can stably maintain its current position and will not easily shift due to vibrations of doors and windows, external interference, or other factors, ensuring the stability and reliability of the adjusted assist state. Furthermore, by utilizing screw drive to combine the adjusting component 32 and the support base 31 within the limited space of the sliding groove 5, the overall structure of the adjusting mechanism 3 becomes more compact, without occupying excessive internal space. This facilitates miniaturization of the device and its rational layout within various door and window structures. Simultaneously, the screw drive itself is relatively durable. With proper lubrication and normal use, it can withstand multiple adjustment operations, reducing the need for repair or replacement due to frequent damage to adjusting components, extending the device's service life, and improving its overall cost-effectiveness.

[0051] See Figure 6 and Figure 12 As shown, in one specific embodiment, the connecting screw 33 includes a rotary transmission part 331 and a screw body 332 connected to the rotary transmission part 331; the adjusting component 32 is tractively connected to the rotary transmission part 331, and the support seat 31 is threadedly connected to the screw body 332.

[0052] Specifically, by setting up a dedicated rotary transmission unit 331 to interface with the adjustment component 32, it can better adapt to different types of adjustment operations. Furthermore, due to the precise threaded connection between the lead screw body 332 and the support base 31, the displacement of the support base 31 can be precisely controlled, thereby allowing for fine adjustment of the assist force. This meets the more detailed and personalized requirements of different doors and windows and different users for assist force, greatly improving the flexibility and accuracy of the device's adjustment. Simultaneously, the functional partition design makes different parts of the connecting lead screw 33 relatively independent. During long-term use, if the rotary transmission unit 331 or the lead screw body 332 experiences wear or damage, it is relatively easier to perform individual maintenance or replacement operations. Compared to the integral connecting lead screw 33 structure, it is not necessary to disassemble the entire connecting lead screw 33; only the problematic part needs to be addressed, reducing maintenance costs and difficulty, and helping to extend the overall service life of the device. This design gives the entire adjustment mechanism 3 better compatibility and expandability when facing different application scenarios or subsequent functional upgrades. For example, the shape, size, or transmission ratio of the rotary transmission unit 331 can be changed according to actual needs to adapt to new types of adjustment components 32 or meet more complex adjustment logic; the thread specifications of the lead screw body 332 can also be adjusted to achieve different precision of support seat 31 movement control, further optimize the adjustment range and precision of the assist force, facilitate application in more types of door and window products, or expand with other functional modules.

[0053] See Figure 13 As shown, in a specific embodiment, the adjustment component 32 includes a transmission gear 321, which is disposed close to the rotary transmission part 331. The rotary transmission part 331 has a toothed end 3311 at one end close to the adjustment component 32, and the transmission gear 321 engages with the toothed end 3311 for transmission.

[0054] Specifically, when the user needs to adjust the assist level, the adjustment component 32 is operated to cause the transmission gear 321 to rotate. Since the transmission gear 321 and the meshing end 3311 of the rotary transmission unit 331 are engaged, the rotational motion of the transmission gear 321 is transmitted to the rotary transmission unit 331 through the interaction between the teeth, causing the rotary transmission unit 331 to rotate synchronously with the same transmission ratio as the transmission gear 321. This converts the external force generated by the adjustment operation into the rotational power required by the connecting screw 33. The rotation of the rotary transmission unit 331 further drives the connecting screw 33 to rotate as a whole. Based on the threaded connection between the screw body 332 and the support base 31, the rotation of the screw causes the support base 31 to move linearly within the sliding groove 5 along the axial direction of the screw (i.e., the length direction of the sliding groove 5). As the position of the support base 31 changes, the position of the fixed end of the elastic element 2 is adjusted accordingly, thereby changing the distance between the movable end and the fixed end of the elastic element 2, thus changing the elastic potential energy state of the elastic element 2, ultimately achieving the purpose of adjusting the assist level, so that the assist level of the door and window operation meets the current usage requirements. When the user stops operating the adjustment component 32, the entire adjustment mechanism 3 will remain in its current state due to the self-locking characteristic of the gear meshing (the meshing gears can remain relatively stationary without continuous external force) and the self-locking property of the threaded connection between the support base 31 and the connecting screw 33. The support base 31 remains stably in the adjusted position, maintaining the assist force of the elastic element 2 and providing stable assist conditions for the next door / window operation until the user performs the adjustment operation again.

[0055] This embodiment cleverly utilizes the principle of gear transmission by setting a transmission gear 321 on the adjusting component 32 and setting a meshing end 3311 on one end of the rotating transmission part 331 of the connecting screw 33, allowing the two to be connected in a meshing manner. Gear transmission has the characteristics of accurate transmission ratio, high transmission efficiency, and compact structure. When the transmission gear 321 of the adjusting component 32 rotates, the meshing action between the gears can accurately transmit power to the rotating transmission part 331, driving it to perform the corresponding rotational movement. This precise transmission method ensures that the force applied during the adjustment operation can be stably and accurately converted into the rotation of the connecting screw 33, thereby driving the support base 31 to move, realizing accurate adjustment of the fixed end position of the elastic element 2, and laying the foundation for precise control of the assist force. When the transmission gear 321 and the meshing end 3311 mesh, the teeth are in close contact with each other. During the power transmission process, it can withstand a certain load force and effectively disperse stress, avoiding unstable situations such as slippage and loosening. Compared to other transmission methods (such as friction transmission), gear meshing transmission can more reliably transmit the external force applied at the adjustment component 32 to the rotary transmission part 331 in this application scenario, ensuring that the entire adjustment mechanism 3 can work stably in different usage environments and multiple adjustment operations, maintaining the accuracy and consistency of the assist force adjustment.

[0056] In one specific embodiment, the adjustment component 32 further includes a knob 322 and a connecting shaft 323. The housing 4 is provided with a through hole (not shown in the figure). One end of the connecting shaft 323 extends into the sliding groove 5 and is connected to the transmission gear 321, and the other end is connected to the knob 322. The knob 322 is located in the through hole.

[0057] By setting up the knob 322 and the connecting shaft 323, and using the through hole on the housing 4 as a medium, a connection channel is constructed from the outside of the device to the internal transmission components. The knob 322 is a component directly operated by the user, making it convenient for the user to apply external force for operation. The connecting shaft 323 extends into the sliding groove 5 and connects to the transmission gear 321. Its function is to transmit the operation action of the knob 322 to the transmission gear 321, and then, through gear meshing, transmit the external force to the subsequent rotary transmission part 331 and the connecting screw 33, etc., ultimately realizing the adjustment of the position of the support 31 and the assist force of the elastic element 2. This layered design, connected by through holes, clearly separates the operating interface and the transmission link, allowing the entire adjustment process to proceed in an orderly manner.

[0058] See Figures 2 to 5 and Figures 8 to 11 As shown, in a specific embodiment, the adjustment mechanism 3 further includes a mounting base 34, which is located in the sliding groove 5 and connected to the housing 4. The mounting base 34 is provided with a mounting groove, and the transmission gear 321 and the rotary transmission part 331 are both located in the mounting groove.

[0059] Specifically, by setting up a mounting base 34 and connecting it to the housing 4 within the sliding groove 5, a dedicated space, namely the mounting groove, is provided for the transmission gear 321 and the rotary transmission part 331. This allows for precise positioning of the transmission gear 321 and the rotary transmission part 331, ensuring they are in a relatively fixed position for transmission engagement and maintaining the accuracy and stability of gear meshing and other transmission relationships. Simultaneously, the mounting base 34 acts as a protective shell for these two critical transmission components, preventing direct exposure to the external environment and reducing the possibility of dust or debris affecting transmission performance, or damage caused by accidental collisions, friction, or other external factors, thus ensuring the stable and reliable operation of the adjusting mechanism 3. By concentrating the transmission gear 321 and the rotary transmission part 331 within the mounting groove of the mounting base 34, the adjustment mechanism 3 is arranged more rationally and orderly within the limited space of the sliding groove 5. The transmission connection between them is compactly made in the mounting slot, which shortens the force transmission path, reduces unnecessary space occupation, helps to improve space utilization, and makes the force transmission process more direct and efficient, reducing force loss and transmission deviation caused by excessively long transmission links or unreasonable layout, ensuring that the operating force applied from the adjustment component 32 can be accurately transmitted to the support base 31 through each component, so as to achieve effective adjustment of the assist force.

[0060] See Figures 1 to 12 As shown, in one specific embodiment, the elastic element 2 is a spring. More specifically, the elastic element 2 is a compression spring or a tension spring. As a common elastic element, a spring has the characteristic of being able to undergo elastic deformation and store elastic potential energy when subjected to force, and returning to its original shape after the external force is removed. The selection of a compression spring or a tension spring is based on their different deformation modes and force characteristics, which allow them to be applied to different structural layouts and assistance needs, thereby fulfilling the assistance function of the adjustable assist device in the operation of doors and windows.

[0061] When the elastic element 2 is a compression spring, the transmission mechanism 1 is provided with a movable seat 11, with the fixed end abutting against the support seat 31 and the movable end abutting against the movable seat 11. Preferably, both the compression spring and the movable seat 11 are sleeved on the lead screw body 332.

[0062] Specifically, by setting the movable seat 11 as the connecting component between the transmission mechanism 1 and the movable end of the compression spring, and the support seat 31 as the abutting component of the fixed end, a stable force transmission structure is constructed. The compression spring and the movable seat 11 are sleeved onto the lead screw body 332. On the one hand, the axial positioning effect of the lead screw body 332 ensures that the spring moves stably in a specific direction during force deformation. On the other hand, it facilitates the adjustment of the position of the support seat 31 by combining with the lead screw transmission, thereby changing the initial state of the spring and realizing the adjustment of the assist force. When operating the handle, the force is transmitted to the movable seat 11 through the transmission mechanism 1. The movable seat 11 applies pressure to the movable end of the compression spring, compressing it, and storing elastic potential energy inside the spring. When the adjustment mechanism 3 changes the position of the support seat 31 through the lead screw transmission, it changes the position of the fixed end of the compression spring, thereby adjusting the initial degree of compression of the spring (i.e., the initial elastic potential energy state), affecting the assist force during subsequent door and window operations. During operations such as opening and closing doors and windows, the spring releases its potential energy, which reacts through the movable seat 11 to the transmission mechanism 1 to assist the handle operation. This structural design makes the installation and force application of the compression spring in the device more stable and orderly, enabling accurate storage and release of elastic potential energy for assistance. The sleeve connection to the lead screw body 332 facilitates coordinated operation with the adjustment mechanism 3, allowing for flexible adjustment of the assistance force and improving the device's adaptability to different application scenarios.

[0063] When the elastic element 2 is a tension spring, the support base 31 and the transmission mechanism 1 are respectively provided with a first hook 311 and a second hook 12, and the two ends of the tension spring are respectively connected to the first hook 311 and the second hook 12.

[0064] The use of hooks to connect the two ends of the tension spring is based on the characteristic that the tension spring needs to be stretched at both ends to store elastic potential energy when subjected to force. The support base 31 and the transmission mechanism 1, as key components of the device, are conveniently and securely connected to the tension spring via corresponding hooks. This ensures that during door and window operations, the tension spring can be effectively stretched to deform it, thereby storing and releasing elastic potential energy. When closing the door or window, the handle rotates, driving the transmission mechanism 1. The transmission mechanism 1 applies tension to one end of the tension spring through the second hook 12, while the support base 31 fixes the other end of the spring through the first hook 311, causing the tension spring to be stretched and store elastic potential energy. When opening the door or window, the tension spring contracts, releasing elastic potential energy, which reacts through the hooks onto the transmission mechanism 1, assisting the handle in completing the opening action. The hook design makes the connection of the tension spring in the device secure and convenient, reliably realizing the function of the tension spring and assisting in door and window operations. Furthermore, the structure is relatively simple, easy to install and maintain, reducing the assembly difficulty and subsequent maintenance costs of the device.

[0065] This utility model also provides a door or window, which includes the adjustable assist device as described above.

[0066] Specifically, the doors and windows also include handles (not shown in the diagram) and frames (not shown in the diagram). The adjustable assist device is installed inside the frame; the handle is installed in the frame and is connected to the transmission mechanism 1. When the doors and windows need to be closed, the user turns the handle, and the force generated by the handle is transmitted through the transmission mechanism 1 to the movable end of the elastic element 2 in the adjustable assist device (for example, for a compression spring, the force is transmitted to the movable seat 11 to compress the spring; for a tension spring, the spring is stretched through the hook). The elastic element 2 deforms and stores elastic potential energy. At the same time, the lock cylinder can perform the locking action as usual, ensuring that the doors and windows are closed in place. During this process, the elastic element 2 of the assist device accumulates potential energy, preparing for subsequent opening. When the doors and windows need to be opened, the handle is operated. At this time, the elastic element 2 releases the previously stored elastic potential energy, which reacts to the handle through the transmission mechanism 1, assisting the handle in completing the opening action, reducing the external force applied by the user, and achieving the assist effect. After the lock cylinder is unlocked, it will not hinder the force transmission process of the assist device in opening the doors and windows, ensuring that the entire opening process is smooth. Throughout the process, the adjustable assist device installed inside the frame functions stably, and all components work together to complete the opening and closing of the doors and windows.

[0067] An adjustable assist device is installed on the frame of doors and windows, allowing users to control the opening and closing of these doors and windows. An elastic element 2, with an adjustable distance between its movable and fixed ends, stores and releases elastic potential energy. One end of a transmission mechanism 1 is connected to a handle, and the other end is connected to the movable end of the elastic element 2. When the handle is turned, force is transmitted through the transmission mechanism 1 to the movable end of the elastic element 2. The elastic element 2, with its adjustable distance between the movable and fixed ends, flexibly changes its elastic potential energy state according to the adjustment mechanism 3's control of the fixed end. This stored and released elastic potential energy then generates a counterforce on the handle during door and window opening and closing, assisting operation and achieving effortless and convenient operation. Furthermore, the adjustment mechanism 3 allows for the adjustment of the elastic element 2 as needed, thereby adjusting the assist level to suit individual user preferences, greatly enhancing the user experience and facilitating independent operation of doors and windows by different users. The door and window frame itself has sufficient internal space to accommodate and install the adjustable assist device. Placing the adjustable assist device at these frame positions allows for full utilization of the frame space, enabling the adjustable assist device to better integrate with the overall structure of the door and window without occupying excessive external space and affecting the appearance and installation of the door and window. On the other hand, the frame position is well-suited to the conventional position of the handle and the structure of the door and window's rotation axis in terms of force transmission, making it easier for the adjustable assist device to effectively transmit the assisting effect to the entire opening or closing action of the door and window, thus optimizing the assisting effect.

[0068] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An adjustable assist device, characterized in that, include: The system includes a transmission mechanism, an elastic element, and an adjustment mechanism. The elastic element has a movable end and a fixed end. The transmission mechanism is driven to the movable end of the elastic element, and the adjustment mechanism is driven to the fixed end of the elastic element. When the adjustment mechanism is activated, it drives the fixed end to move along the length of the elastic element, so that the distance between the movable end and the fixed end is adjustable.

2. The adjustable assist device according to claim 1, characterized in that, The adjustable assist device also includes a housing, which has a sliding groove. The transmission mechanism and the elastic element are installed along the length of the sliding groove. The adjustment mechanism includes a support base. The support base is also installed in the sliding groove and connected to the fixed end of the elastic element.

3. The adjustable assist device according to claim 2, characterized in that, The adjustment mechanism further includes an adjustment component, which is installed in the housing and extends into the sliding groove, and is also kinetically connected to the support base.

4. The adjustable assist device according to claim 3, characterized in that, The adjusting mechanism further includes a connecting screw installed in the sliding groove, the adjusting component being drivenly connected to the end of the connecting screw away from the elastic element, and the support seat being threadedly connected to the end of the connecting screw close to the elastic element.

5. The adjustable assist device according to claim 4, characterized in that, The connecting screw includes a rotary transmission part and a screw body connected to the rotary transmission part; the adjusting component is driven to the rotary transmission part, and the support seat is threaded to the screw body.

6. The adjustable assist device according to claim 5, characterized in that, The adjusting component includes a transmission gear, which is disposed close to the rotary transmission part. The rotary transmission part has a toothed end at one end close to the adjusting component, and the transmission gear engages with the toothed end.

7. The adjustable assist device according to claim 6, characterized in that, The adjustment assembly also includes a knob and a connecting shaft. The housing has a through hole. One end of the connecting shaft extends into the sliding groove and is connected to the transmission gear, and the other end is connected to the knob, which is located in the through hole.

8. The adjustable assist device according to claim 6, characterized in that, The adjustment mechanism further includes a mounting base, which is located in the sliding groove and connected to the housing. The mounting base has a mounting groove, and the transmission gear and the rotary transmission part are both located in the mounting groove.

9. The adjustable assist device according to claim 1, characterized in that, The elastic element is a spring.

10. A door or window, characterized in that, Includes the adjustable assist device as described in any one of claims 1-9.

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