A force-assisted adjustable sliding door and window lifting structure

Abstract

The utility model provides a kind of adjustable power-assisted sliding door and window lifting structure, including vertically arranged fixed pedestal and side frame, pulley assembly liftable installed on fixed pedestal and lock box assembly and power-assisted adjusting assembly installed on side frame, transmission connecting rod is liftable installed in side frame, transmission connecting rod is used for transmission connection pulley assembly, lock box assembly and power-assisted adjusting assembly;Power-assisted adjusting assembly is located in the upside of lock box assembly, it includes adjusting spring, connecting rod locking element connected with transmission connecting rod and frame locking element connected with side frame;The one end of adjusting spring is connected with side frame, its other end is connected with length adjusting rod, connecting rod locking element and frame locking element can be connected with length adjusting rod or break away from each other;A kind of adjustable power-assisted sliding door and window lifting structure provided by the utility model, overcome the defects that the existing lifting structure lifting power cannot be adjusted, lead to narrow application range, inflexible use.

Description

Technical Field

[0001] This utility model relates to the field of lifting and sliding door and window technology, specifically to an adjustable lifting structure for lifting doors and windows. Background Technology

[0002] The lifting mechanism is a crucial component of lift-and-slide doors and windows, primarily consisting of a handle, a transmission mechanism, and pulleys. Lift-and-slide doors and windows utilize the principle of leverage; by gently turning the handle, the lifting and lowering of the door or window sash is controlled, thereby locking the pulley system and enabling the door or window sash to be fixed or opened.

[0003] To provide cushioning and facilitate lifting, springs are generally added to the lifting structure. For example, patent number CN219220117U discloses a door and window lifting device, including a door frame and a box fixed on the door frame. A transmission bar is movably installed inside the door frame, and a transmission mechanism is provided inside the box. The transmission mechanism is connected to the transmission bar. The transmission mechanism includes a cam, a transmission plate, and a drive block. The cam is connected to the drive block through the transmission plate, and the drive block is fixed on the transmission bar. A locking mechanism is also provided inside the box. The locking plate in the locking mechanism is used to lock the cam. The cam drives the transmission bar to rise and fall through the drive block. The height of the pulley group is controlled by an external transmission group. When the transmission bar rises, the external pulley group falls and contacts the track. At this time, the door frame can slide through the pulley group. When the transmission bar falls, the external pulley group rises and disengages from the track. At this time, the door frame is locked and cannot slide. One end of the box is provided with a hook, and a tension spring is connected to the hook. The other end of the tension spring is fixed to the transmission bar. When the transmission bar falls, the tension spring stretches, which generates resistance and achieves a buffering effect. When the transmission bar rises, the tension spring contracts to provide tension, so that the pulley group can contact the track.

[0004] In the above structure, although the spring can achieve the functions of buffering and providing tension, the spring force (lifting assistance) cannot be adjusted according to the weight of the door leaf due to the limited travel of the transmission bar. Different weights of door leaves or window leaves require custom-made springs, which has a narrow range of applications and is not flexible in use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of this, the present invention provides an adjustable lifting structure for sliding doors and windows, which overcomes the shortcomings of existing lifting structures that cannot adjust the lifting assistance, resulting in a narrow range of applications and inflexible use.

[0007] (II) Technical Solution

[0008] To solve the aforementioned technical problem, this utility model provides an adjustable sliding door / window lifting structure with assist, including a vertically arranged fixed base and side frame, a pulley assembly that can be raised and lowered on the fixed base, and a lock box assembly and an assist adjustment assembly mounted on the side frame. A transmission link is raised and lowered within the side frame, and the transmission link is used to drive and connect the pulley assembly, the lock box assembly, and the assist adjustment assembly. The assist adjustment assembly is located above the lock box assembly and includes an adjusting spring, a link locking member connected to the transmission link, and a frame locking member connected to the side frame. One end of the adjusting spring is connected to the side frame, and the other end is connected to a length adjusting rod. Both the link locking member and the frame locking member can be connected to or disengaged from the length adjusting rod. When adjusting the assist, the extension and retraction of the adjusting spring are adjusted through the cooperation of the link locking member and the frame locking member.

[0009] In some embodiments, the connecting rod locking member is located above the frame locking member. The connecting rod locking member includes a connecting rod locking block fixed to the upper end of the transmission connecting rod and a first fastener threaded onto the connecting rod locking block. The length adjusting rod is slidably sleeved in the first sliding groove of the connecting rod locking block, and one end of the first fastener extends into the first sliding groove.

[0010] In some embodiments, the frame locking member includes a frame locking block fixed to the side frame and a second fastener threaded onto the frame locking block, the length adjusting rod being slidably fitted into a second groove of the frame locking block, and one end of the second fastener extending into the second groove.

[0011] In some embodiments, one end of both the first fastener and the second fastener is exposed outside the side frame; both the first fastener and the second fastener are fastening screws.

[0012] In some embodiments, a hook rod is provided inside the side frame, and a hook hole is provided at one end of the length adjustment rod near the adjustment spring; a hook at one end of the adjustment spring is hooked onto the hook rod, and a hook at the other end of the spring is hooked into the hook hole.

[0013] The power assist adjustment assembly also includes a housing fixedly connected to the side frame, and the adjustment spring, the connecting rod locking member, the frame locking member and the length adjustment rod are all located inside the housing.

[0014] In some embodiments, a spring is installed between the transmission link and the side frame.

[0015] In some embodiments, the lock box assembly includes a box body fixedly connected to the side frame, a cam rotatably mounted in the box body, a lifting block fixedly connected to the transmission link, and a connecting rod connecting the cam and the lifting block;

[0016] A locking plate is movably mounted on the lower side of the cam, and a locking part that cooperates with the locking plate is provided on the cam; an unlocking block is slidably mounted on the lower side of the locking plate, and the unlocking block has a locking support part and an unlocking support part, the height of the locking support part being greater than the height of the unlocking support part; when the locking plate abuts against the locking support part, the locking plate is inserted into the locking part, and the cam is locked; when the locking plate abuts against the unlocking support part, the locking plate disengages from the locking part, and the cam is unlocked.

[0017] In some embodiments, the lower end of the transmission link is driven to the pulley assembly via a link assembly, the link assembly including a rotating plate hinged to the fixed base, one end of the rotating plate being connected to the transmission link via a first link, and the other end being connected to the pulley assembly via a second link;

[0018] The pulley assembly includes a pulley frame and a plurality of pulleys arranged at intervals within the pulley frame. The fixed base is provided with an arc-shaped guide groove, and the pulley frame is provided with a guide post adapted to the arc-shaped guide groove.

[0019] In some embodiments, a rear fixed base is installed on one side of the fixed base, and a rear pulley assembly is ellipsably mounted on the rear fixed base. The rear pulley assembly is connected to the pulley assembly via a straight connecting rod.

[0020] In some embodiments, the side frame is fixed to the side end of the outer door leaf, the fixing base is fixed to one side of the bottom of the door leaf, and the rear fixing base is fixed to the other side of the bottom of the door leaf.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0023] 1) An auxiliary adjustment component is added to this lifting structure. By connecting or disengaging the connecting rod locking component, the frame locking component and the length adjustment rod, the extension and retraction of the adjustment spring can be adjusted, so as to flexibly adjust the lifting assistance according to the weight of the door or window sash. In this way, the same lifting structure can be adapted to doors and windows of different weights, without the need to customize springs for door or window sashes of different weights, which significantly expands the scope of application and improves the flexibility of use.

[0024] 2) Both the first fastener of the connecting rod locking component and the second fastener of the frame locking component have one end exposed on the side frame and are fastening screws. Operators can easily connect or disconnect the length adjusting rod from the transmission connecting rod by tightening or loosening the first fastener, and connect or disconnect the length adjusting rod from the side frame by tightening or loosening the second fastener, thereby facilitating the adjustment of the extension and retraction of the adjusting spring. The operation is simple and convenient. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of the adjustable sliding door and window lifting structure of this utility model in use;

[0027] Figure 2 This is a perspective view of an adjustable sliding door / window lifting structure of this utility model installed on the door leaf;

[0028] Figure 3 This is a perspective view of an adjustable sliding door / window lifting structure according to the present invention;

[0029] Figure 4 This is a perspective view of the assist adjustment component in an adjustable sliding door and window lifting structure according to this utility model;

[0030] Figure 5 This is a perspective view of the assist adjustment component in the assist adjustable sliding door and window lifting structure of this utility model from another angle.

[0031] Figure 6 This is a cross-sectional view of the assist adjustment component in the assist adjustable sliding door and window lifting structure of this utility model;

[0032] Figure 7 This is a perspective view of the internal structure of the assist adjustment component in an assist adjustable sliding door and window lifting structure of this utility model;

[0033] Figure 8 This is an exploded view of the assist adjustment component in the assist adjustable sliding door and window lifting structure of this utility model;

[0034] Figure 9 This is a perspective view of the lock box assembly in an adjustable sliding door / window lifting structure according to this utility model.

[0035] Figure 10 This is a three-dimensional view of the cam locking state in an adjustable sliding door and window lifting structure according to this utility model.

[0036] Figure 11 This is a perspective view of the cam unlocking state in a power-assisted adjustable sliding door and window lifting structure according to this utility model;

[0037] Figure 12 This is a perspective view of the connection between the fixed base and the pulley assembly in a power-assisted adjustable sliding door and window lifting structure of this utility model;

[0038] Figure 13 This is an exploded view of the fixed base and pulley assembly in the adjustable sliding door and window lifting structure of this utility model;

[0039] The component names corresponding to the various reference numerals in the figure are as follows: 1. Fixed base; 101. Arc-shaped guide groove; 2. Side frame; 201. Hook rod; 3. Pulley assembly; 31. Pulley frame; 32. Pulley; 33. Guide post; 4. Lock box assembly; 41. Box body; 42. Cam; 421. Locking part; 43. Lifting block; 44. Connecting rod; 45. Locking plate; 451. First limit block;

[0040] 46. ​​Unlocking block; 461. Locking support; 462. Unlocking support; 463. Second limit block; 464. Toggle block; 5. Assist adjustment assembly; 51. Adjusting spring; 52. Linkage locking component; 521. Linkage locking block; 522. First fastener; 523. First slide groove; 53. Frame locking component; 531. Frame locking block; 532. Second fastener; 533. Second slide groove; 54. Length adjustment rod; 541. Hook hole; 55. Cover; 6. Transmission link; 7. Spring; 8. Linkage assembly; 81. Rotating plate; 82. First link; 83. Second link; 9. Rear fixed base; 10. Rear pulley assembly; 11. Straight link; 12. Door leaf. Detailed Implementation

[0041] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0042] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0044] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0045] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0046] Combination Figures 1-13 As shown, this utility model provides an adjustable sliding door / window lifting structure with assist, including a vertically arranged fixed base 1 and a side frame 2, a pulley assembly 3 that can be raised and lowered on the fixed base 1, and a lock box assembly 4 and an assist adjustment assembly 5 installed on the side frame 2. The side frame 2 is vertically arranged, the fixed base 1 is fixed to the lower end of the side frame 2, the lock box assembly 4 is installed in the middle position of the side frame 2, and the assist adjustment assembly 5 is installed in the top position of the side frame 2. A transmission link 6 is raised and lowered inside the side frame 2. The transmission link 6 is used to drive and connect the pulley assembly 3, the lock box assembly 4, and the assist adjustment assembly 5. That is, the lower end of the transmission link 6 is driven and connected to the pulley assembly 3, the middle part of the transmission link 6 is driven and connected to the lock box assembly 4, and the upper end of the transmission link 6 is driven and connected to the assist adjustment assembly 5. Each component is driven and connected through the transmission link 6. The overall structure layout is reasonable and ensures the stability of the coordinated operation of each component.

[0047] See Figure 3 , Figure 4 , Figure 6 and Figure 7The power assist adjustment assembly 5 is located on the upper side of the lock box assembly 4. The power assist adjustment assembly 5 includes an adjusting spring 51, a connecting rod locking member 52 connected to the transmission connecting rod 6, and a frame locking member 53 connected to the side frame 2. One end of the adjusting spring 51 is connected to the side frame 2, and the other end is connected to a length adjusting rod 54. The connecting rod locking member 52 can be connected to or disengaged from the length adjusting rod 54, thereby connecting or disengaging the length adjusting rod 54 from the transmission connecting rod 6. The connecting rod locking member 52 is mainly used to repeatedly stretch the adjusting spring 51. The frame locking member 53 can be connected to or disengaged from the length adjusting rod 54, thereby connecting or disengaging the length adjusting rod 54 from the side frame 2. The frame locking member 53 is mainly used to limit the adjustment spring 51 before it is stretched again, preventing it from retracting. When adjusting the power assist, the connecting rod locking member 52 and the frame locking member 53 cooperate to adjust the extension and retraction of the adjusting spring 51, thereby adjusting the amount of power assist.

[0048] This lifting structure incorporates an adjustable assist component. By connecting or disengaging the linkage locking parts, frame locking parts, and length adjusting rod, the extension and retraction of the spring can be adjusted. This allows for flexible adjustment of the lifting assist based on the weight of the door or window sash. In this way, the same lifting structure can be adapted to doors and windows of different weights, eliminating the need to customize springs for different weights of door or window sashes. This significantly expands the scope of application and improves the flexibility of use.

[0049] In some embodiments, such as Figures 6 to 8 As shown, the connecting rod locking member 52 is located above the frame locking member 53. The connecting rod locking member 52 includes a connecting rod locking block 521 fixed to the upper end of the transmission connecting rod 6 and a first fastener 522 threadedly connected to the connecting rod locking block 521. The length adjusting rod 54 is arranged vertically and slides in the first sliding groove 523 of the connecting rod locking block 521. The first sliding groove 523 is a through groove and is adapted to the shape of the length adjusting rod 54. One end of the first fastener 522 extends into the first sliding groove 523. When the first fastener 522 is tightened, one end of the first fastener 522 presses tightly against the length adjusting rod 54, thereby fixing the length adjusting rod 54 and the connecting rod locking block 521, and thus fixing the length adjusting rod 54 and the transmission connecting rod 6. When the first fastener 522 is loosened, one end of the first fastener 522 disengages from the length adjusting rod 54, thereby disengaging the length adjusting rod 54 and the connecting rod locking block 521. At this time, the connecting rod locking block 521 and the length adjusting rod 54 can slide relative to each other.

[0050] In some embodiments, such as Figures 6 to 8As shown, the structure of the frame locking member 53 is similar to that of the connecting rod locking member 52. The frame locking member 53 includes a frame locking block 531 fixed to the side frame 2 and a second fastener 532 threadedly connected to the frame locking block 531. The length adjusting rod 54 is slidably sleeved in the second sliding groove 533 of the frame locking block 531. The second sliding groove 533 is a through groove and is adapted to the shape of the length adjusting rod 54. One end of the second fastener 532 extends into the second sliding groove 533. When the second fastener 532 is tightened, one end of the second fastener 532 abuts tightly against the length adjusting rod 54, thereby fixing the length adjusting rod 54 and the frame locking block 531, and thus fixing the length adjusting rod 54 and the side frame 2. When the second fastener 532 is loosened, one end of the second fastener 532 disengages from the length adjusting rod 54, thereby disengaging the length adjusting rod 54 and the frame locking block 531. At this time, the frame locking block 531 and the length adjusting rod 54 can slide relative to each other.

[0051] In some embodiments, such as Figure 4 as well as Figures 6 to 8 As shown, one end of both the first fastener 522 and the second fastener 532 is exposed outside the side frame 2. Both the first fastener 522 and the second fastener 532 are fastening screws, and the outer end of the fastening screw is provided with an internal hexagonal groove for easy insertion and tightening with an external wrench. In this structure, one end of both the first fastener of the connecting rod locking member and the second fastener of the frame locking member is exposed outside the side frame and is a fastening screw. The operator can easily connect or disconnect the length adjusting rod from the transmission connecting rod by tightening or loosening the first fastener, and connect or disconnect the length adjusting rod from the side frame by tightening or loosening the second fastener, thereby facilitating the adjustment of the extension and retraction of the adjusting spring. The operation is simple and convenient.

[0052] In some embodiments, such as Figures 6 to 8 As shown, a hook rod 201 is provided inside the side frame 2, and a hook hole 541 is provided at one end of the length adjustment rod 54 near the adjustment spring 51; the hook at one end of the adjustment spring 51 is hooked onto the hook rod 201, and the hook at the other end of the adjustment spring 51 is hooked into the hook hole 541. The power adjustment assembly 5 also includes a cover 55 fixedly connected to the side frame 2. The adjustment spring 51, the connecting rod locking member 52, the frame locking member 53, and the length adjustment rod 54 are all located inside the cover 55. The addition of the cover 55 can effectively prevent the above components from being affected by the external environment, such as dust, thus extending their service life. It also avoids damage or injury caused by accidental contact with personnel. The cover makes the power adjustment assembly look neater and more beautiful, coordinating with the overall appearance of the doors and windows and improving the overall aesthetics of the doors and windows.

[0053] In some embodiments, such as Figure 3 and Figure 9As shown, a spring 7 is installed between the transmission link 6 and the side frame 2. One end of the spring 7 is hooked onto the hook inside the side frame 2, and the other end is hooked onto the transmission link 6. In this structure, the spring 7 and the assist adjustment component 5 have the same function, both of which can provide buffering and assistance. However, the assist adjustment component 5 has the function of adjusting the elasticity (assistance). The combination of the spring 7 and the assist adjustment component 5 can achieve better performance.

[0054] In some embodiments, such as Figures 9 to 11 As shown, the lock box assembly 4 includes a box body 41 fixedly connected to the side frame 2, a cam 42 rotatably installed in the box body 41, a lifting block 43 fixedly connected to the transmission link 6, and a connecting rod 44 connecting the cam 42 and the lifting block 43. The cam 42, the lifting block 43 and the connecting rod 44 are all located in the box body 41. The cam 42 is provided with a square insertion slot, and an external handle can be inserted into the square insertion slot, thereby driving the cam 42 to rotate through the external handle. When the cam 42 rotates, the cam 42 drives the lifting block 43 to rise and fall through the connecting rod 44, thereby driving the transmission link 6 to rise and fall.

[0055] like Figures 9 to 11 As shown, a locking plate 45 is vertically mounted on the lower side of the cam 42. The cam 42 has a locking part 421 that cooperates with the locking plate 45. The locking plate 45 is used to lock the cam 42. The locking plate 45 has at least one first limiting block 451, and the housing 41 has a first limiting groove adapted to the first limiting block 451. An unlocking block 46 is slidably mounted laterally on the lower side of the locking plate 45. The unlocking block 46 has a second limiting block 463 and a lever 464. The housing 41 has a second limiting groove adapted to the second limiting block 463 and a guide groove adapted to the lever 464. The unlocking block 46 has a locking support part 461 and an unlocking support part 462. The height of the locking support part 461 is greater than the height of the unlocking support part 462. The locking support part 461 and the unlocking support part 462 are connected by an inclined guide wall to facilitate switching between the unlocked and locked states. A torsion spring is installed between the locking plate 45 and the housing 41, with one end of the torsion spring connected to the locking plate 45. When the locking plate 45 abuts against the locking support 461, the locking plate 45 is inserted into the locking part 421, and the cam 42 is locked. When unlocking, the unlocking block 46 is slid by the toggle block 464, the locking plate 45 abuts against the unlocking support 462, the locking plate 45 disengages from the locking part 421, and the cam 42 is unlocked. At this time, the cam 42 can be rotated by the external handle.

[0056] In some embodiments, such as Figure 12 and Figure 13As shown, the lower end of the transmission link 6 is driven to the pulley assembly 3 via the link assembly 8. The link assembly 8 includes a rotating plate 81 hinged to the fixed base 1. One end of the rotating plate 81 is connected to the transmission link 6 via a first link 82, and the other end of the rotating plate 81 is connected to the pulley assembly 3 via a second link 83. The pulley assembly 3 includes a pulley frame 31 and a plurality of pulleys 32 arranged at intervals within the pulley frame 31. The fixed base 1 is provided with an arc-shaped guide groove 101, and the pulley frame 31 is provided with a guide post 33 adapted to the arc-shaped guide groove 101. In this structure, the arc-shaped guide groove 101 provides accurate guidance for the lifting and lowering of the pulley assembly, facilitating installation and ensuring the stability of the lifting and lowering process of the pulley assembly. When the transmission link 6 rises, the transmission link 6 pulls the pulley assembly 3 via the link assembly 8, the guide post 33 moves along the arc-shaped guide groove 101, and the pulley assembly 3 descends relative to the fixed base 1.

[0057] In some embodiments, such as Figure 3 As shown, a rear fixed base 9 is installed on one side of the fixed base 1. A rear pulley assembly 10 is ellipsably mounted on the rear fixed base 9. The rear pulley assembly 10 is connected to the pulley assembly 3 via a straight connecting rod 11. The structure of the rear fixed base 9 is similar to that of the fixed base 1, and the structure of the rear pulley assembly 10 is similar to that of the pulley assembly 3.

[0058] In some embodiments, such as Figure 2 As shown, the side frame 2 is fixed to the side end of the outer door leaf 12, the fixing base 1 is fixed to one side of the bottom of the door leaf 12, and the rear fixing base 9 is fixed to the other side of the bottom of the door leaf 12.

[0059] The adjustment process of this adjustable sliding door / window lifting structure is as follows:

[0060] Step 1: Install the lifting structure into the door sash (window sash), and loosen the first fastener 522 and the second fastener 532;

[0061] Step 2: Rotate the handle, and the transmission link 6 moves upward. The transmission link 6 drives the pulley assembly 3 to descend, thereby lifting the door leaf. At this time, the transmission link 6 moves upward by 28mm.

[0062] Step 3: Tighten the first fastener 522, rotate the handle, and the weight of the door leaf is supported on the pulley assembly 3 and pulled down through the linkage assembly 8 to the transmission linkage 6. At this time, the adjusting spring 51 is stretched, which can slow down the rotation speed of the handle (buffer function) and prevent the handle from quickly reversing and hitting the hand; if the door leaf is light, the adjustment is complete.

[0063] Step 4: If the door is heavy, after completing step 3, tighten the second fastener 532 and loosen the first fastener 522 to keep the adjusting spring 51 in its current stretched state.

[0064] Step 5: Turn the handle to lift the door leaf, tighten the first fastener 522, and loosen the second fastener 532; turn the handle back to lower the door leaf. This process will increase the length of the adjusting spring 51 by 28mm, thereby adjusting the pulling force (assist).

[0065] Repeating steps four and five can continuously increase the tension of the adjusting spring 51 to obtain greater pulling force. Since the handle can rotate at any angle and the transmission link 6 can move at any distance, by alternately fixing the first fastener 522 and the second fastener 532, a pulling force of any value can be obtained, thus perfectly matching the weight of the door leaf.

[0066] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A assisted adjustable sliding door / window lifting structure, characterized in that: The device includes a vertically arranged fixed base (1) and a side frame (2), a pulley assembly (3) that can be raised and lowered on the fixed base (1), and a lock box assembly (4) and a power-assist adjustment assembly (5) mounted on the side frame (2). A transmission link (6) is raised and lowered inside the side frame (2). The transmission link (6) is used to drive the pulley assembly (3), the lock box assembly (4), and the power-assist adjustment assembly (5). The power-assist adjustment assembly (5) is located on the upper side of the lock box assembly (4) and includes an adjustment spring (51). The transmission link (6) is connected to a link locking member (52), and the side frame (2) is connected to a frame locking member (53). One end of the adjusting spring (51) is connected to the side frame (2), and the other end is connected to a length adjusting rod (54). Both the link locking member (52) and the frame locking member (53) can be connected to or disconnected from the length adjusting rod (54). When adjusting the assist, the extension and retraction of the adjusting spring (51) can be adjusted by the cooperation of the link locking member (52) and the frame locking member (53).

2. The adjustable sliding door and window lifting structure according to claim 1, characterized in that: The connecting rod locking member (52) is located on the upper side of the frame locking member (53). The connecting rod locking member (52) includes a connecting rod locking block (521) fixed to the upper end of the transmission connecting rod (6) and a first fastener (522) threadedly connected to the connecting rod locking block (521). The length adjusting rod (54) is slidably sleeved in the first slide groove (523) of the connecting rod locking block (521). One end of the first fastener (522) extends into the first slide groove (523).

3. The adjustable sliding door and window lifting structure according to claim 2, characterized in that: The frame locking member (53) includes a frame locking block (531) fixed to the side frame (2) and a second fastener (532) threaded onto the frame locking block (531). The length adjusting rod (54) is slidably sleeved in the second groove (533) of the frame locking block (531), and one end of the second fastener (532) extends into the second groove (533).

4. The adjustable sliding door and window lifting structure according to claim 3, characterized in that: One end of both the first fastener (522) and the second fastener (532) is exposed outside the side frame (2); both the first fastener (522) and the second fastener (532) are fastening screws.

5. The adjustable sliding door and window lifting structure according to claim 1, characterized in that: A hook rod (201) is provided inside the side frame (2), and a hook hole (541) is provided at one end of the length adjustment rod (54) near the adjustment spring (51); the hook at one end of the adjustment spring (51) is hooked on the hook rod (201), and the hook at the other end is hooked in the hook hole (541). The power adjustment assembly (5) also includes a cover (55) fixedly connected to the side frame (2), and the adjustment spring (51), the connecting rod locking member (52), the frame locking member (53) and the length adjustment rod (54) are all located inside the cover (55).

6. The adjustable sliding door and window lifting structure according to claim 1, characterized in that: A spring (7) is installed between the transmission link (6) and the side frame (2).

7. The adjustable sliding door and window lifting structure according to claim 1, characterized in that: The lock box assembly (4) includes a box body (41) fixedly connected to the side frame (2), a cam (42) rotatably installed in the box body (41), a lifting block (43) fixedly connected to the transmission link (6), and a connecting rod (44) connecting the cam (42) and the lifting block (43). A locking plate (45) is mounted on the lower side of the cam (42) in a height-reducible manner. A locking part (421) that cooperates with the locking plate (45) is provided on the cam (42). An unlocking block (46) is slidably mounted on the lower side of the locking plate (45) in a horizontal direction. The unlocking block (46) has a locking support part (461) and an unlocking support part (462). The height of the locking support part (461) is greater than the height of the unlocking support part (462). When the locking plate (45) abuts against the locking support (461), the locking plate (45) is inserted into the locking part (421), and the cam (42) is locked; when the locking plate (45) abuts against the unlocking support (462), the locking plate (45) disengages from the locking part (421), and the cam (42) is unlocked.

8. The adjustable sliding door and window lifting structure according to claim 1, characterized in that: The lower end of the transmission link (6) is driven to the pulley assembly (3) through the link assembly (8). The link assembly (8) includes a rotating plate (81) hinged to the fixed base (1). One end of the rotating plate (81) is connected to the transmission link (6) through the first link (82), and the other end is connected to the pulley assembly (3) through the second link (83). The pulley assembly (3) includes a pulley frame (31) and a plurality of pulleys (32) arranged at intervals in the pulley frame (31). An arc-shaped guide groove (101) is provided on the fixed base (1), and a guide post (33) adapted to the arc-shaped guide groove (101) is provided in the pulley frame (31).

9. The adjustable sliding door and window lifting structure according to claim 8, characterized in that: A rear fixed base (9) is installed on one side of the fixed base (1). A rear pulley assembly (10) is installed on the rear fixed base (9) in a height-adjustable manner. The rear pulley assembly (10) is connected to the pulley assembly (3) through a straight connecting rod (11).

10. The adjustable sliding door and window lifting structure according to claim 9, characterized in that: The side frame (2) is fixed to the side end of the outer door leaf (12), the fixing base (1) is fixed to one side of the bottom of the door leaf (12), and the rear fixing base (9) is fixed to the other side of the bottom of the door leaf (12).

Images