Lifting-assisting connecting device for lifting sliding door

Abstract

The utility model relates to the technical field of lifting sliding door accessories, in particular to a lifting-assisting connecting device of a lifting sliding door, the lifting-assisting connecting device is arranged between a front pulley assembly and a rear pulley assembly, and the lifting-assisting connecting device comprises a base and a telescopic rod hinged to a door leaf. The two ends of the base are fixedly connected to the front pulley assembly and the rear pulley assembly, one end of the telescopic rod is hinged to the base, the lifting assisting connecting device arranged between the front pulley assembly and the rear pulley assembly assists the angle turning device in lifting, the stress distance is shortened, meanwhile, the telescopic rod rebounds to generate pushing force, and the pulling force generated when the lifting sliding door is lifted is reduced; meanwhile, thrust generated by automatic rebounding of the lifting-assisting connecting device offsets part of pressure from the door leaf for the rear pulley assembly, the stress of the two sides of the door leaf on the front pulley assembly and the rear pulley assembly is balanced, the door leaf is prevented from inclining, and the stable lifting effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting and sliding door accessories, in particular to a lifting and sliding door auxiliary connection device. Background Art

[0002] The conventional doors and windows mostly use common sliding doors to partition building partitions. The main accessories of common sliding doors include pulleys, connecting rods, handles, etc. The common sliding door leaf is made of thin materials and has a small door leaf area. It is often used for smaller sliding doors. Reference Publication (Announcement) No.: CN219471859U is a lifting structure for sliding doors and windows. On the basis of the original sliding door, the lever principle is utilized. When the lifting sliding door handle is rotated, the door leaf rises and enters a lifting state. The sliding door in this state can move left and right. The lifting sliding door can be translated to any position and fixed, which can achieve micro-ventilation and prevent children from entering and exiting. The existing lifting sliding door needs to be lifted or lowered by a lifting device. However, when the door leaf is heavy, people will feel laborious to operate the opening and closing, which affects the user experience. In addition, the existing lifting device lifts on one side of the lower part of the door leaf, and then drives the pulley on the other side to lift. The stability is insufficient during the lifting process. Under the influence of the heavy door, it is easy to tilt due to force, resulting in an inability to lift smoothly. Utility Model Content

[0003] The utility model provides a lifting auxiliary connection device for lifting a sliding door, so as to facilitate the rotation of a handle and improve the stability.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting-assisting connection device for lifting a sliding door, comprising a front pulley assembly, a rear pulley assembly and a corner turner, the front end of the front pulley assembly is transmission-connected to the corner turner, an lifting-assisting connection device is arranged between the front pulley assembly and the rear pulley assembly, the lifting-assisting connection device comprises a base and a telescopic rod for connecting the door leaf, the two ends of the base are fixedly connected to the front pulley assembly and the rear pulley assembly, and one end of the telescopic rod is hinged to the base.

[0005] Furthermore, a connecting rod is also included.

[0006] Furthermore, one end of the base is connected to the rear pulley assembly through a connecting rod.

[0007] Furthermore, one end of the base is connected to the front pulley assembly through a connecting rod.

[0008] Furthermore, the front pulley assembly and the rear pulley assembly each include a housing and a sliding wheel, the sliding wheel is rotatably connected to the housing, and the lifting-assisting connection device is fixedly connected to the housing.

[0009] Furthermore, one end of the telescopic rod is hinged with a connecting piece connected to the door leaf.

[0010] Furthermore, the telescopic rod is a pneumatic spring.

[0011] Compared with the prior art, the beneficial effects of the utility model are: by providing an auxiliary lifting connection device between the front pulley assembly and the rear pulley assembly to assist the corner turner in lifting, the force distance is shortened and the telescopic rod rebounds to generate thrust, thereby reducing the pulling force when lifting the sliding door, thereby reducing the force of turning the handle; at the same time, the thrust generated by the automatic rebound of the auxiliary lifting connection device also offsets part of the pressure from the door leaf for the rear pulley assembly, balances the force on both sides of the door leaf on the front pulley assembly and the rear pulley assembly, improves stability, prevents the door leaf from tilting, and achieves a smooth lifting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the lifting state in the utility model.

[0013] Figure 2 It is a structural schematic diagram of the descending state in the utility model.

[0014] Figure 3 It is a three-dimensional diagram of the lifting-assisting connection device in the utility model.

[0015] Figure 4 It is a connection diagram of the front pulley assembly and the angle turner in the utility model.

[0016] Figure 5 It is a structural schematic diagram of another connection method in the utility model.

[0017] In the figure: a front pulley assembly 1, a rear pulley assembly 2, a corner turner 3, a lifting auxiliary connection device 4, a connecting rod 5, a housing 11, a sliding wheel 12, a base 41, a telescopic rod 42, a slot 410, a fixing pin 411, and a connecting piece 421. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] As shown in the accompanying drawings, the utility model discloses a lifting-assisting connection device for lifting a sliding door, comprising a lifting device, wherein the lifting device comprises a front pulley assembly 1, a rear pulley assembly 2 and a corner turner 3, the front end of the front pulley assembly 1 is connected to the corner turner 3 in a transmission manner, and an lifting-assisting connection device 4 is arranged between the front pulley assembly 1 and the rear pulley assembly 2, the lifting-assisting connection device 4 comprises a base 41 and a telescopic rod 42 for connecting the door leaf, the telescopic rod 42 is hinged to the bottom of the door leaf, both ends of the base 41 are fixedly connected to the front pulley assembly 1 and the rear pulley assembly 2, and one end of the telescopic rod 42 is hinged to the base 41. It should be noted that the front pulley assembly 1 and the rear pulley assembly 2 are respectively arranged on both sides of the bottom according to the width of the door leaf, so as to ensure the stability of the movement of the door leaf, and the corner turner 3 is arranged at the corner in front of the bottom of the door leaf, and a certain forward force will be generated during the lifting process.

[0020] The utility model discloses a lifting-assisting connection device for lifting a sliding door. The lifting-assisting connection device 4 provided between the front pulley assembly 1 and the rear pulley assembly 2 assists the corner turner 3 in lifting. The lifting-assisting connection device 4 is additionally provided without changing the installation positions of the front pulley assembly 1 and the rear pulley assembly 2, so as to provide an extra fulcrum to promote the lifting of the door leaf, shorten the force-bearing distance and at the same time, the rebound of the telescopic rod 42 can generate thrust, reduce the pulling force when lifting the sliding door, and thus reduce the force of turning the handle. At the same time, the thrust generated by the automatic rebound of the lifting-assisting connection device 4 can also offset part of the pressure from the door leaf for the rear pulley assembly 2, balance the forces on both sides of the door leaf on the front pulley assembly 1 and the rear pulley assembly 2, improve stability, prevent the door leaf from tilting, and achieve the effect of smooth lifting.

[0021] In this embodiment, a connecting rod 5 is also included. The connecting rod 5 is part of the existing lifting structure and is mainly used to connect the front and rear pulley groups. The corner cutter 3 of the original lifting structure is arranged on one side of the bottom of the door leaf. The total length of the front pulley assembly 1, the connecting rod 5 and the rear pulley assembly 2 corresponds to the width of the door leaf. With the addition of the auxiliary lifting connection device 4, the connecting rod 5 will be relatively shortened, that is, the total length of the front pulley assembly 1, the rear pulley assembly 2, the connecting rod 5 and the auxiliary lifting connection device 4 corresponds to the width of the door leaf. When performing the lifting action, the front pulley assembly 1 is driven to lift first, and then the rear pulley assembly 2 is driven to lift through the connecting rod 5, so as to achieve the effect of synchronous lifting and lowering of the front and rear. However, for large sliding doors such as those weighing more than 450 kilograms, the pressure of the lifting structure is relatively large, and the connecting rod 5 is easily deformed or collapsed under the action of the front pulley assembly 1 and the rear pulley assembly 2.

[0022] In this embodiment, one end of the base 41 is connected to the rear pulley assembly 2 through the connecting rod 5, that is, the connection sequence at this time is that the rear end of the front pulley assembly 1 is connected to the lifting-assisting connecting device 4, the rear end of the lifting-assisting connecting device 4 is connected to the connecting rod 5, and the rear end of the connecting rod 5 is connected to the rear pulley assembly 2.

[0023] In this embodiment, one end of the base 41 is connected to the front pulley assembly 1 through the connecting rod 5, that is, the connection sequence at this time is that the rear end of the front pulley assembly 1 is connected to the connecting rod 5, the rear end of the connecting rod 5 is connected to the lifting-assisting connecting device 4, and the rear end of the lifting-assisting connecting device 4 is connected to the rear pulley assembly 2.

[0024] Specifically, the purpose of the lifting-assisting connection device 4 is to provide a thrust fulcrum for the angler 3 to assist the angler 3 in completing the lifting action. Different positions of the lifting-assisting connection device 4 have different degrees of influence on the force of people turning the handle to lift. Figure 5 As shown, the lifting-assisting connection device 4 is arranged at the rear end of the connecting rod 5 and connected to the rear pulley assembly 2. During the lifting process, the front corner device 3 at the bottom of the door leaf drives the front pulley assembly 1 to lift, and the rear lifting-assisting connection device 4 assists the rear pulley assembly 2 in lifting, so as to achieve the effect of synchronous lifting, and the force required to turn the handle is smaller. Since the force is relative, the lifting-assisting connection device 4 has a telescopic rod 42 rebounding to generate an upward thrust during the auxiliary lifting process, but at the same time, the thrust will affect the rear pulley assembly 2 to push forward, which may cause the connecting rod 5 to bend and deform; if the lifting-assisting connection device 4 is arranged at the rear end of the front pulley assembly 1 and connected to the connecting rod 5, during the lifting process The angle turner 3 and the lifting-assisting connecting device 4 drive the front pulley assembly 1 to rise, and the rear pulley assembly 2 is lifted synchronously at the same time. In this process, the distance between the angle turner 3 and the rear pulley assembly 2 is shortened due to the setting of the lifting-assisting connecting device 4, making it smoother when lifting; if the lifting-assisting connecting device 4 is set at the rear end of the rear pulley assembly 2, the front pulley assembly 1 and the rear pulley assembly 2 are connected to each other by the connecting rod 5, which causes the installation position of the rear pulley assembly 2 to move forward. It should be understood that the front pulley assembly 1 and the rear pulley assembly 2 at the bottom of the door leaf are the landing points. If the installation position of the rear pulley assembly 2 moves forward, the force on the door leaf is unbalanced during movement, which can easily cause the door leaf to tilt.

[0025] In this embodiment, the front pulley assembly 1 and the rear pulley assembly 2 both include a housing 11 and a sliding wheel 12, the sliding wheel 12 is rotatably connected to the housing 11, and the lifting auxiliary connection device 4 is fixedly connected to the housing 11. Figure 4 As shown, the sliding wheel 12 is rotatably arranged in the housing 11, and the number of sliding wheels 12 on the front pulley assembly 1 and the rear pulley assembly 2 is the same. The sliding wheel 12 can also be arranged on the lifting-assisting connecting device 4. If the lifting-assisting connecting device 4 is arranged between the rear pulley assembly 2 and the connecting rod 5, one of the sliding wheels 12 on the rear pulley assembly 2 can be moved to the lifting-assisting connecting device 4 for installation. At this time, the total number of sliding wheels 12 of the rear pulley assembly 2 and the lifting-assisting connecting device 4 is equal to the number of sliding wheels 12 of the front pulley assembly 1.

[0026] In this embodiment, both ends of the base 41 are provided with slots 410, and the slots 410 are provided with fixed pins 411. The rear end of the housing 11 of the front pulley assembly 1 is provided with a connecting plate. Figure 1 , 2, 5, the connecting plate is inserted into the slot 410, and is horizontally inserted from the outside of the slot 410 and penetrated through the connecting plate through a fixing pin 411, thereby achieving a fixed connection, the connecting rod 5 can be directly inserted into the slot 410, and is penetrated through the slot 410 and the connecting rod 5 in turn through a fixing pin 411, thereby achieving a fixed connection.

[0027] In this embodiment, one end of the telescopic rod 42 is hinged with a connecting piece 421 connected to the door leaf. The telescopic rod 42 is a pneumatic spring, and other automatically retractable telescopic rod 42 devices can also be used. The telescopic rod 42 includes a first section and a second section, the first section is telescopic to the second section, the first section is hinged to the base 41, the second section is hinged to the connecting piece 421, and is connected to the door leaf through the connecting piece 421.

[0028] The above embodiments are preferred embodiments of the present utility model. All structures similar to the present utility model and equivalent changes made thereto should fall within the protection scope of the present utility model.

Claims

1. A lifting and connecting device for lifting a sliding door, comprising a front pulley assembly, a rear pulley assembly and a corner turner, wherein the front end of the front pulley assembly is transmission-connected to the corner turner, and characterized in that: An auxiliary lifting connection device is arranged between the front pulley assembly and the rear pulley assembly, and the auxiliary lifting connection device includes a base and a telescopic rod for connecting the door leaf, the two ends of the base are fixedly connected to the front pulley assembly and the rear pulley assembly, and one end of the telescopic rod is hinged to the base.

2. The lifting and sliding door auxiliary connection device according to claim 1, characterized in that: Also included is a connecting rod.

3. The lifting and sliding door auxiliary connection device according to claim 2, characterized in that: One end of the base is connected to the rear pulley assembly through a connecting rod.

4. The lifting and sliding door auxiliary connection device according to claim 2, characterized in that: One end of the base is connected to the front pulley assembly through a connecting rod.

5. The lifting and connecting device for lifting and sliding doors according to claim 1, characterized in that: The front pulley assembly and the rear pulley assembly both include a housing and a sliding wheel, the sliding wheel is rotatably connected to the housing, and the lifting-assisting connecting device is fixedly connected to the housing.

6. The lifting and sliding door auxiliary connection device according to claim 1, characterized in that: One end of the telescopic rod is hinged with a connecting piece connected to the door leaf.

7. The lifting and sliding door auxiliary connection device according to claim 1, characterized in that: The telescopic rod is a pneumatic spring.

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