Lifting and rotating adjustment mechanism for built-in blinds in double-layer insulating glass
The built-in adjustment mechanism of the single-sided magnetic control operating part simplifies the transmission structure of the built-in blinds of the double-layer insulating glass, solves the problems of complex traditional structure and appearance, and improves the transmission area and appearance effect.
Patent Information
- Application Number
- CN202411761400.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2044-12-03
AI Technical Summary
The existing double-layer insulating glass built-in blinds have a complex transmission structure and an increased profile width, which affects the transmittance area and appearance.
It adopts a single-sided magnetic control operating part, and realizes the lifting and rotation adjustment of the blinds through the built-in adjustment mechanism, which simplifies the transmission structure and only requires one external operating part.
The transmission structure is simplified, the permeability and appearance effect are improved, and the width of the single-side profile is reduced and the operation is convenient.
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Figure CN119616351B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of energy-saving doors and windows, and specifically discloses a lifting and rotating adjustment mechanism for built-in blinds in double-layer insulating glass. Background Art
[0002] Double-glazed built-in blinds are blinds that are integrally installed within the insulating glass and controlled magnetically. Existing double-glazed built-in blinds typically feature an internal magnetic adjustment mechanism inside each side of the profile, along with external magnetic control blocks on the outside of each side. These blocks control the blind's raising and lowering, and the slats' rotation, respectively, achieving the blind's adjustable function.
[0003] For example, the invention patent with application number 202010641945.7 discloses a hollow glass blind, which includes a window frame, a plurality of blinds arranged in the window frame, a counterweight plate connected to the bottom of the blind, two adjacent blinds are connected by a connecting rope, the blinds at the bottom are connected to the counterweight plate by a connecting rope, a traction rope for pulling the blinds is provided in the window frame, the traction rope passes through the plurality of blinds and is connected to the counterweight plate, a cavity is provided in the window frame at both ends of the blind, a controller for controlling the movement of the traction rope is provided in the cavity, an adjustment cavity is provided in the window frame below the blind, and the adjustment cavity is connected to the cavity. The hollow glass blind disclosed in this patent is a blind that is provided with an adjustment mechanism for adjusting the lifting and lowering of the blinds and the rotation of the curtain blades in the profiles on both sides. Although the two important adjustment functions of the built-in blinds are realized, the blinds of this structure have the following disadvantages. First, the side profiles are wider than those of traditional glass windows, resulting in a smaller window area. Second, both profiles require a corresponding transmission structure, which complicates the internal structure. Third, the outer surface of both profiles requires a magnetic control block, which affects the appearance of the glass window. Therefore, to address the above shortcomings of existing insulating glass blinds, this application proposes a lifting and rotating adjustment mechanism for double-layer insulating glass built-in blinds that can effectively solve the above technical problems. Summary of the Invention
[0004] The present invention aims to provide a lifting and rotating adjustment mechanism for the built-in blinds of double-layer insulating glass, so as to achieve simultaneous control of the lifting and lowering of the built-in blinds and the rotation adjustment of the curtain blades through only one magnetic control operating part on the outside of a side end profile.
[0005] The present invention is achieved through the following technical solutions:
[0006] A lifting and rotating adjustment mechanism for a built-in blind in a double-layer insulating glass frame comprises a window frame enclosed by profiles, glass blocks are provided at both the front and rear ends of the window frame, a blind is provided between the two glass blocks, built-in adjustment mechanisms are provided within the profiles at the upper and side ends, and a magnetic control operating portion that interacts with the built-in adjustment mechanism is provided on the front side of the side profiles;
[0007] The built-in adjustment mechanism includes a rotating rod rotatably arranged in the upper end profile, the rotating rod is provided with a rope reel that interacts with the ladder rope on the blinds, the end of the rotating rod is provided with a first transmission line wheel, the lower end of the side end profile is provided with a second transmission line wheel, and a transmission rope is provided between the first transmission line wheel and the second transmission line wheel;
[0008] A lifting slide that slides up and down is provided in the profile at the side end, and a pulling rope connected to the lifting slide is connected to the lifting rope in the blinds. A first magnetic attraction component is provided between the lifting slide and the magnetic control operating part. A through groove that passes through the front and back is provided on the lifting slide, and a threading hole that passes through the through groove up and down is also provided on the lifting slide. A movable pin rod is connected to the through groove through a first spring, and a second magnetic attraction component is provided between the movable pin rod and the magnetic control operating part. A through hole aligned with the threading hole is provided on the movable pin rod, and the transmission rope passes through the through hole and the threading hole.
[0009] As a further configuration of the above scheme, the magnetic control operating part includes a hand-held block, the first magnetic attraction component includes a first magnet and a third magnet respectively arranged on the lifting slide and the hand-held block, and the second magnetic attraction component includes a second magnet and a fourth magnet respectively arranged at the front end of the movable pin rod and inside the hand-held block.
[0010] As a further configuration of the above solution, a receiving groove is provided on the rear side of the handheld block, the fourth magnet is arranged in the receiving groove, and an operating member for moving the fourth magnet back and forth is provided on the front side of the handheld block.
[0011] As a further configuration of the above solution, the operating member is a bolt rotation structure or a reset button structure.
[0012] As a further configuration of the above solution, a pulley is provided on the lifting slide, and the pulling rope is connected to the upper end profile after passing around the pulley.
[0013] As a further arrangement of the above scheme, a cam is provided on the rear side surface of the lifting slide, and two mirror-symmetrical pendulum bars are rotatably connected to the cam, and a second spring is connected between the two pendulum bars, and a locking tooth surface is provided on the outer side surface of one end of the pendulum bar that is rotatably connected to the cam, and the pulley is provided at the other end of the pendulum bar, and the pulling rope is connected to the upper end profile after passing around the two pulleys. A locking block is connected to the lifting slide located below the cam through a third spring, and a latching tooth that acts on the locking tooth surface is provided at the upper end of the locking block, and a connecting rope in a vertical state is connected between the rear end of the movable pin rod extending out of the through slot and the locking block.
[0014] As a further configuration of the above solution, a guide wheel is provided in the upper end profile, and the pulling rope is extended into the side end profile after being acted upon by the guide wheel and is connected to the lifting slide.
[0015] As a further configuration of the above solution, a track bar is provided on the front side wall of the inner cavity of the profile at the side end, and a limiting slider that interacts with the track bar is provided on the lifting slide.
[0016] As a further configuration of the above solution, the diameters of the threading holes and the through holes are both larger than the diameter of the transmission rope.
[0017] The lifting and rotating adjustment mechanism of the double-layer insulating glass built-in blinds disclosed in the present invention, when the blinds need to be lifted and adjusted, pulls the fourth magnet into the storage groove through the operating part, so that the force between the fourth magnet and the second magnet becomes smaller, so that the movable pin rod moves axially under the action of the first spring, and the through hole on the movable pin rod is aligned with the threading hole in the vertical direction. At this time, the transmission rope will not be pulled during the up and down movement of the lifting slide, and the blinds can be lifted and adjusted by the lifting rope and the pulling rope during the up and down movement of the lifting slide.
[0018] When the blinds need to be rotated and adjusted to change the light transmission effect, the fourth magnet is first pushed outward through the operating member, so that the distance between the fourth magnet and the second magnet becomes smaller and the magnetic attraction becomes stronger. Therefore, the movable pin overcomes the force of the first spring under the action of the magnetic force and moves axially forward, causing the through hole and the threading hole on the movable pin to be misaligned. During the misalignment process, the transmission rope is clamped by the two, so that the transmission rope is connected and fixed to the lifting slide. The lifting slide is then moved up or down a short distance to move the transmission rope, thereby driving the first transmission pulley to rotate, and then the curtain blade is adjusted to rotation under the action of the rope winder and ladder rope. In addition, during this adjustment process, the blinds can only be raised and lowered a short distance, which does not affect the overall lifting height of the blinds.
[0019] To further address the issue of preventing the blinds from synchronously raising and lowering by a small distance during the adjustment of the slat rotation, this patent incorporates a unique structural improvement. During the adjustment, the third spring locks the teeth at the top of the locking block into the locking teeth on the swing bar, allowing the pulley at the end of the swing bar to function as a movable pulley, allowing the blinds to be easily adjusted with a 1:2 adjustment range.
[0020] When adjusting the slats of the Venetian blinds, the axial forward movement of the movable pin pulls the locking block downward via the pull cord, overcoming the force of the third spring and releasing the locking block from the two swing bars. Once the drive cord is secured to the lift slide, the two swing bars can adaptively adjust by moving closer or further apart. This prevents the lift cord from being pulled during a short upward or downward movement of the lift slide. This ensures that the slats' rotational adjustment process remains unaffected by their lifting and lowering, resulting in improved adjustment.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] The disclosed lifting and rotating adjustment mechanism for double-layered insulating glass blinds replaces the traditional internal transmission structure of insulating glass blinds. Users can adjust the blinds by simply moving a magnetic control unit up and down along the side profile. This simple internal transmission structure, novel and ingenious design, delivers excellent performance. Furthermore, the design of a single-side profile transmission structure reduces the profile width, increasing the overall window's transmittance. Furthermore, requiring only a single external operating unit, significantly enhances the overall window's appearance. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention;
[0025] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention;
[0026] Figure 3 Schematic diagram of the three-dimensional structure of the built-in adjustment mechanism in the present invention;
[0027] Figure 4 For the present invention Figure 3A in the figure shows the enlarged structural diagram;
[0028] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the lifting slide in the present invention;
[0029] Figure 6 This is a schematic diagram of the back three-dimensional structure of the lifting slide in the present invention;
[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the central control operating part of the present invention;
[0031] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the central control operating part of the present invention. DETAILED DESCRIPTION
[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.
[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 8 , and describes the application in detail with reference to embodiments. Example 1
[0034] Example 1 discloses a lifting and rotating adjustment mechanism for a double-layer insulating glass built-in blind. Figure 1 and attached Figure 2 The double-layered insulating glass window body 100 includes a Venetian blind 200, a built-in adjustment mechanism, and a magnetic control operating unit 400. The double-layered insulating glass window body 100 includes a window frame composed of a profile 101, with glass blocks 102 arranged on both the front and rear sides of the window frame. The Venetian blind 200 is then placed in a sealed space formed by the front and rear glass blocks 102 and the profile 101. The built-in adjustment mechanism is arranged inside the profile 101 at one side end and the profile 101 at the top end. The magnetic control operating unit 400 is adsorbed and adhered to the front side of the profile 101 at the side end and cooperates with the built-in adjustment mechanism.
[0035] Reference Attachment Figure 2 and attached Figure 3The Venetian blind 200 includes slats 201 spaced apart vertically. Ladder cords 202 are provided at both ends of the slats 201. Lifting cords 203 are also provided between the slats 201. The number of ladder cords 202 is determined by the width of the slats 201. The lifting cords 203 are responsible for adjusting the height of the slats 201, while the ladder cords 202 are responsible for adjusting the inclination of the slats 201.
[0036] The built-in adjustment mechanism consists of two parts: one part is located in the upper profile 101, and the other part is located in the side profile 101. The built-in adjustment mechanism located in the upper profile 101 includes a horizontally rotatable rotating rod 301. The left and right ends of the rotating rod 301 are each provided with a rope reel 302 that interacts with the top of the ladder rope 202. The cross-sectional shape of the rope reel 302 can be cam-shaped or waist-shaped. When the rotating rod 301 drives the rope reel 302 to rotate, one side of the ladder rope 202 is raised and the other side is lowered, thereby achieving the inclination adjustment effect of the curtain slat 201. A first transmission pulley 303 is provided at the end of the rotating rod 301 located directly above the side end profile 101. A second transmission pulley 304 is rotatably provided at the lower end of the inner cavity of the side end profile 101. A closed-loop transmission rope 305 is provided between the first transmission pulley 303 and the second transmission pulley 304. By pulling the transmission rope 305 up and down, the first transmission pulley 303 and the second transmission pulley 304 can be rotated. Then, during the rotation of the first transmission pulley 303, the rotating rod 301 can be driven to rotate accordingly. In addition, a plurality of guide wheels 306 are provided inside the upper end profile 101. The top end of the lifting rope 203 is connected to a pull rope 307. The pull rope 307 is then guided by the guide wheels 306 and extends into the interior of the side end profile 101 and is arranged vertically downward.
[0037] Reference Attachment Figure 4 and attached Figure 5 The built-in adjustment mechanism provided in the side end profile 101 includes a lifting slide 308, and the lower end of the pull rope 307 is directly connected to the lifting slide 308, so that the pull rope 307 is pulled by the up and down movement of the lifting slide 308, thereby achieving the up and down movement of the lifting rope 203, thereby achieving the lifting and lowering adjustment of the curtain slat 201. In addition, in order to ensure that the lifting slide 308 can move up and down stably along the interior of the side end profile 101, limit sliders 309 are provided on both sides of the lifting slide 308. At the same time, during the molding process of the side end profile 101, two track bars that are compatible with the limit sliders 309 are integrally molded on its internal front side wall (see attached Figure 2 ).
[0038] A first magnet 310 is disposed at the upper end of the front side of the lifting slide 308. A through slot 311 extending from front to back is defined within the lifting slide 308 below the first magnet 310. A threading hole 312 extending from top to bottom through the through slot 311 is also defined within the lifting slide 308. This allows the transmission cable 305 to pass through the lifting slide 308 along the threading hole 312. The threading hole 312 has a diameter larger than the diameter of the transmission cable 305, preventing the transmission cable 305 from contacting and rubbing against the threading hole 312 during the up and down movement of the lifting slide 308. A movable pin 313 is connected to the through slot 311 via a first spring 324. A second magnet 314 is connected to the front end of the movable pin 313. Under the action of the first spring 324, the second magnet 314 is retracted into the through slot 311 and maintained at a predetermined distance from the front side of the lifting slide 308. At the same time, a through hole 315 axially aligned with the threading hole 312 is provided on the movable pin rod 313, so that in this state the transmission rope 305 can pass through the through hole 315 without friction contact with the hole wall.
[0039] Reference Attachment Figure 7 and attached Figure 8 The magnetic control operating unit 400 includes a handle block 401. A third magnet 402 is disposed on the upper end of the rear side of the handle block 401, which is attracted to the first magnet 310. A receiving slot 403 is provided on the rear side of the handle block 401 below the third magnet 402. A fourth magnet 404 is disposed in the receiving slot 403, and the ends of the fourth magnet 404 and the second magnet 314 that are adjacent to each other are also attracted to each other. A movable operating member 405 is disposed on the front side of the lower end of the handle block 401. The end of the operating member 405 that extends into the receiving slot 403 is connected to the fourth magnet 404. In a specific design, the operating member 405 can adopt a bolt rotation structure or a reset button structure, so that the operating member 405 can push the fourth magnet 404 toward the end face of the receiving slot 403. Then, under the magnetic attraction of the fourth magnet 404 and the second magnet 314, the movable pin 313 is attracted forward along the through slot 311.
[0040] When the blinds 200 need to be raised or lowered, the user directly holds the hand-held block 401 and moves it up and down along the front side of the side profile 101. At this time, under the magnetic action of the first magnet 310 and the third magnet 402, the lifting slide 308 will move up and down inside the profile 101, and then the blinds 200 can be raised or lowered under the action of the pulling rope 307 and the lifting rope 203.
[0041] After the height adjustment of the blinds is completed, when the light transmittance of the glass window needs to be adjusted, the user first unscrews or presses the operating part 405, and under the action of the operating part 405, pushes the fourth magnet 404 to the front end of the storage slot 403. At this time, the magnetic attraction between the fourth magnet 404 and the second magnet 314 can overcome the force of the first spring 324 to make the movable pin 313 move forward. In the process of the movable pin 313 moving forward, the through hole 315 on the movable pin 313 is misaligned with the threading hole 312, so that the transmission rope 305 is clamped in the through slot 311 through the movable pin 313 and fixed to the lifting slide 308. Then the user pulls the hand-held block 401 upward or downward a short distance, and during the pulling process, the transmission rope 305 moves upward or downward, thereby driving the first transmission wheel 303 to rotate. Finally, during the rotation of the rotating rod 301, the rope winder 302 rotates in the corresponding direction, causing the front or rear side of the ladder rope 202 to move up and down, and under the action of the ladder rope 202, the inclination angle of the curtain plate 201 is adjusted, ultimately achieving the effect of adjusting the light transmission effect of the blinds. Example 2
[0042] Example 2 discloses a lifting and rotating adjustment mechanism for a double-layer insulating glass with built-in blinds that is further improved based on the technical solution in Example 1. The similarities with Example 1 will not be described again.
[0043] Reference Attachment Figure 4 , Attachment Figure 6 and attached Figure 7 In this second embodiment, a protruding shaft 316 is provided at the upper end of the rear side of the lifting slide 308. Two mirror-symmetrical pendulum bars 317 rotate on the protruding shaft 316, and a second spring 318 is connected between the two pendulum bars 317. A locking tooth surface 3171 is provided on the outer surface of the end where the pendulum bar 317 connects to the protruding shaft 316. A pulley 319 is rotatably provided at the other end of the pendulum bar 317. The pull rope 307 is then passed through the two pulleys 319 in sequence and its end is fixedly connected to the bottom of the upper profile 101, thus forming a movable pulley transmission structure.
[0044] A locking block 320 is slidably mounted on the rear side of the lifting slide 308 below the protruding shaft 316, allowing it to move up and down. The upper end of the locking block 320 is provided with a latching tooth that interacts with the locking tooth surface 3171. A protruding plate 321 is fixed to the rear side of the lifting slide 308 below the locking block 320. A third spring 322 is connected between the protruding plate 321 and the locking block 320. A connecting rope 323 is mounted on the rear end of the movable pin 313, extending from the through slot 311, and connects the connecting rope 323 to the locking block 320. When the movable pin 313 is not attracted by the fourth magnet 404 and moves forward, the connecting rope 323 is vertical. However, when the movable pin 313 is magnetically attracted by the fourth magnet 404 and moves forward, the connecting rope 323 pulls the locking block 320 downward, overcoming the action of the third spring 322, thereby releasing the locking force between the locking block 320 and the pendulum bar 317.
[0045] Through the improved design described above, when the Venetian blind 200 needs to be raised or lowered, the fourth magnet 404 is positioned away from the second magnet 314, aligning the through-hole 315 on the movable pin 313 with the threading hole 312. The transmission cord 305 can freely pass through the through-hole 315 and the threading hole 312. Simultaneously, the connecting cord 323 at the outer end of the movable pin 313 is held vertically. The locking block 320, under the action of the third spring 322, engages the locking tooth surface 3171, preventing the two swing bars 317 from rotating about the cam 316. Consequently, the two pulleys 319 are fixed relative to the lifting slide 308. As the lifting slide 308 moves up and down, the pulleys 319 act as movable pulleys, allowing the curtain slats 201 to move up and down at double the speed and distance. This improves the speed and convenience of adjusting the Venetian blind.
[0046] When the slats 201 of the Venetian blind 200 need to be tilted to change the light transmission effect, the operating member 405 is first unscrewed or pressed to move the movable pin 313 forward, thereby securing the transmission cable 305 to the lifting slide 308. Simultaneously, as the movable pin 313 moves forward, the connecting rope 323 pulls the locking block 320 downward, overcoming the action of the third spring 322. This releases the locking action between the locking block 320 and the swing bar 317. Under the action of external force, the two swing bars 317 can now overcome the action of the second spring 318 and rotate within a certain angle range. After the transmission rope 305 is fixed to the lifting slide 308, the user pulls the hand-held block 401 up or down a short distance to adjust the inclination angle of the curtain 201. At this time, since the two pendulum bars 317 can adaptively adjust by approaching or opening each other, the lifting rope 203 will not be pulled when the hand-held block 401 moves up and down a short distance, and the lifting height of the curtain 201 can be kept unchanged, so that the process of adjusting the inclination angle of the curtain 201 will not affect the lifting adjustment process of the curtain 201, and a better adjustment effect is achieved.
[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A lifting and rotating adjustment mechanism for a double-layer insulating glass with a built-in blind, comprising a window frame enclosed by profiles, with glass blocks provided at both the front and rear ends of the window frame, and a blind provided between the two glass blocks, characterized in that: The upper and side profiles are provided with built-in adjustment mechanisms, and the front side of the side profile is provided with a magnetic control operating part that interacts with the built-in adjustment mechanism; The built-in adjustment mechanism includes a rotating rod rotatably arranged in the upper end profile, the rotating rod is provided with a rope reel that interacts with the ladder rope on the blinds, the end of the rotating rod is provided with a first transmission line wheel, the lower end of the side end profile is provided with a second transmission line wheel, and a transmission rope is provided between the first transmission line wheel and the second transmission line wheel; A lifting slide that slides up and down is provided in the profile at the side end, a lifting rope in the shutter is connected to a pull rope connected to the lifting slide, a first magnetic attraction component is provided between the lifting slide and the magnetic control operating part, a through slot that passes through the lifting slide from front to back is provided, and a threading hole that passes through the through slot from top to bottom is provided on the lifting slide, a movable pin is connected in the through slot via a first spring, and a second magnetic attraction component is provided between the movable pin and the magnetic control operating part, a through hole that is aligned with the threading hole is provided on the movable pin, and the transmission rope passes through the through hole and the threading hole; The magnetic control operating part includes a hand-held block, the first magnetic attraction component includes a first magnet and a third magnet respectively arranged on the lifting slide and the hand-held block, and the second magnetic attraction component includes a second magnet and a fourth magnet respectively arranged at the front end of the movable pin and inside the hand-held block; A receiving groove is provided on the rear side of the handheld block, and the fourth magnet is arranged in the receiving groove. An operating member for moving the fourth magnet forward and backward is provided on the front side of the handheld block; The lifting slide is provided with a pulley, and the pulling rope is connected to the upper profile after passing around the pulley; A cam is provided on the rear side surface of the lifting slide, and two pendulum bars arranged in a mirror-symmetrical manner are rotatably connected to the cam, and a second spring is connected between the two pendulum bars. A locking tooth surface is provided on the outer side surface of one end of the pendulum bar that is rotatably connected to the cam, and the pulley is provided at the other end of the pendulum bar, and the pulling rope is connected to the upper end profile after passing around the two pulleys. A locking block is connected to the lifting slide located below the cam via a third spring, and a latching tooth that acts on the locking tooth surface is provided on the upper end of the locking block, and a connecting rope in a vertical state is connected between the rear end of the movable pin rod extending out of the through slot and the locking block.
2. The lifting and rotating adjustment mechanism for the built-in blinds of double-layer insulating glass according to claim 1, characterized in that: The operating member is a bolt rotation structure or a reset button structure.
3. The lifting and rotating adjustment mechanism for the built-in blinds of double-layer insulating glass according to claim 1, characterized in that: A guide wheel is provided in the upper end profile, and the pulling rope extends into the side end profile after being acted upon by the guide wheel and is connected with the lifting slide.
4. The lifting and rotating adjustment mechanism for the built-in blinds of double-layer insulating glass according to claim 1, characterized in that: A track bar is provided on the front side wall of the inner cavity of the profile at the side end, and a limiting sliding block that acts with the track bar is provided on the lifting slide.
5. The lifting and rotating adjustment mechanism for the built-in blinds of double-layer insulating glass according to claim 1, characterized in that: The diameters of the threading holes and the through holes are both larger than the diameter of the transmission rope.
Citation Information
Patent Citations
Insulating glass blinds
CN111794664B
Manually controlled pavered apparatus for directing the slats of a venetian blind
CA2132461A1
Louver made of hollow glass
CN213928178U