Opening and closing stress controllable door assembly

Abstract

The utility model discloses an opening and closing stress controllable door assembly in the technical field of control doors, and aims to solve the problem that normal use is influenced by forced automatic rebound of a door plate in the prior art. The door comprises a door frame and a door plate, the door frame is provided with a springback assembly connected with the door plate, the springback assembly is used for automatically springback and closing after the door plate is opened, and an adjusting mechanism capable of being connected with the door plate is further arranged at the position, located on the hinged connection side of the door plate, of the door frame. The connecting strip is installed on the door plate, and a sliding groove is formed in the connecting strip; the connecting base is fixedly arranged on a door frame, and a first guide column and a second guide column are fixedly installed at the two ends of the connecting rod respectively. The device is used for adjusting the rotation resistance when the door frame rebounds, can control the door to be positioned at various opening and closing angles, regulate and control the rotation resistance and achieve adjustment work such as normal opening under non-circuit control, and is low in application cost and convenient to use in various scenes.

Description

Technical Field

[0001] This utility model relates to a door assembly with controllable opening and closing stress, belonging to the technical field of factory control doors. Background Technology

[0002] With the improvement of living standards and technology, doors that automatically spring back after opening have been widely adopted, greatly improving portability in work and various usage scenarios. However, with this type of spring-back mechanism, once the spring-back component is installed, the door will automatically spring back regardless of the situation after opening. In some special usage scenarios, such as when moving goods, or when factories, office buildings, etc., need to be kept open for fixed periods of time, automatic spring-back can cause great inconvenience. Existing methods can use motor control to control the automatic opening angle of the door, but this is not only costly, but also cannot achieve good safety and convenience in the event of a circuit system failure. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a door assembly with controllable opening and closing stress, which is used to adjust the rotational resistance when the door frame rebounds. It can control the door to be positioned at various opening and closing angles, regulate the rotational resistance, and realize adjustment work such as constant opening under non-circuit control. It has low application cost and is convenient for use in various scenarios.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] This utility model provides a door assembly with controllable opening and closing stress, including a door frame and a door panel. The door frame is provided with a spring-loaded assembly connected to the door panel. The spring-loaded assembly is used to automatically spring back and close the door panel after it is opened. An adjustment mechanism for connecting the door panel is also provided on the door frame at a position on the hinged connection side of the door panel. The adjustment mechanism includes at least:

[0006] A connecting strip is installed on the door panel, and a sliding groove is provided on the connecting strip;

[0007] A connecting seat is fixedly mounted on the door frame, and a connecting bearing is provided on the connecting seat;

[0008] A connecting rod, wherein a first guide post and a second guide post are fixedly installed at both ends of the connecting rod, the first guide post is rotatably mounted on the connecting bearing, and the second guide post is limited and mounted in the sliding groove;

[0009] A damping supply mechanism is provided to provide adjustable damping for the rotation of the first guide post.

[0010] Specifically, the damping providing mechanism includes a second mounting base, on which a hollow threaded sleeve concentric with the first guide post is mounted. The hollow threaded sleeve has multiple slots evenly spaced along its circumference. An elastic ring is fitted inside the hollow threaded sleeve, and the inner diameter of the inner ring of the elastic ring gradually decreases in the direction of the slots. An adjusting ring is threadedly connected to the hollow threaded sleeve, and the adjusting ring can rotate to retract the expansion deformation at the slot position of the hollow threaded sleeve.

[0011] Specifically, it also includes a fixing base, and the connecting strip and the fixing base are provided with regular polygonal positioning holes. The fixing base is also provided with polygonal positioning pins for positioning the angle of the connecting strip.

[0012] Specifically, the damping providing mechanism includes a fixed plate, a positioning hole concentric with the first guide post, a plurality of adjusting plates surrounding the fixing hole on the fixed plate, an elastic layer on the inner side of the adjusting plates and the outer diameter of the adjusting plates increasing linearly away from the fixed plate, a tension ring sleeved on the outer ring of the plurality of adjusting plates, and an adjusting rod for adjusting the radial position of the tension ring on the fixed plate.

[0013] Specifically, the rebound assembly includes a positioning seat fixedly mounted above the door frame and an adjusting sleeve fixedly mounted on the door panel. The adjusting sleeve has a hollow internal structure and an adjusting component is slidably mounted inside. A first connecting rod is hinged to the positioning seat, and a second connecting rod is hinged to the adjusting sleeve. The first and second connecting rods are hinged to each other. The adjusting component is provided with a toothed plate, and the bottom of the second connecting rod is provided with a gear that can mesh with the toothed plate. A spring for causing the adjusting component to rebound is also provided inside the adjusting sleeve.

[0014] Specifically, one end of the spring abuts against the adjusting member, and the other end of the spring abuts against the movable plate. The movable plate is slidably disposed inside the adjusting sleeve, and the adjusting sleeve is also provided with a control rod for controlling the radial position of the movable plate.

[0015] Specifically, the second mounting base is provided with an oil groove, which points to the rotational engagement position of the first guide post.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] This invention features an additional adjustment mechanism between the door frame and the door panel to adjust the damping of the door frame during rebound. By adjusting the magnitude of this damping, the opening force of the door frame can be changed. It can also provide sufficient resistance to prevent the door panel from rebounding when the door frame needs to be opened, which helps to ensure that the door is in a normally open state at different angles for ventilation or goods handling. Compared with electronic control, it has a low failure rate and low configuration cost, and is suitable for various deployment applications under different working conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the door assembly provided in this embodiment of the utility model;

[0019] Figure 2 This is a utility model Figure 1 An enlarged view of the structure at point A of the door assembly provided in the embodiment;

[0020] Figure 3 This is a front structural cross-sectional view of the spring-loaded assembly provided in this embodiment of the utility model;

[0021] Figure 4 This is a side structural cross-sectional view of the adjustment mechanism provided in this embodiment of the utility model;

[0022] Figure 5 This is a top view of the spring-loaded assembly provided in this embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the connecting strip provided in an embodiment of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the adjusting member provided in an embodiment of the present utility model;

[0025] Figure 8 This is a structural schematic diagram of another damping providing mechanism provided in this embodiment of the utility model;

[0026] Reference numerals: 1. Door frame; 2. Door panel; 3. Rebound assembly; 301. Positioning seat; 302. Adjusting sleeve; 303. First connecting rod; 304. Second connecting rod; 305. Adjusting component; 306. Movable plate; 307. Spring; 308. Control lever; 310. Gear; 4. Adjusting mechanism; 401. Connecting seat; 402. Connecting bar; 403. Connecting rod; 404. First guide post; 405. Second guide post; 406. Hollow threaded sleeve; 407. Elastic ring; 408. Adjusting ring; 409. Fixed seat; 410. Polygonal positioning pin; 501. Fixed plate; 502. Adjusting piece; 503. Tension ring; 504. Adjusting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example:

[0030] This utility model provides a door assembly with controllable opening and closing stress, used to adjust the rotational resistance when the door frame rebounds. It can control the door to be positioned at various opening and closing angles, regulate the rotational resistance, and achieve non-circuit-controlled adjustment functions such as constant opening. It has low application cost and is convenient for use in various scenarios. To realize the assembly's function, the assembly includes a door frame 1 and a door panel 2. As a basic configuration, a rebound assembly 3 connected to the door panel 2 is provided on the door frame 1. The rebound assembly 3 is used to automatically rebound and close after the door panel 2 is opened. The specific structure is not limited here. To limit the rebound capability, an adjustment mechanism 4 connected to the door panel 2 is also provided on the door frame 1 at the hinge connection side of the door panel 2. Figure 2 As shown, the adjustment mechanism 4 includes at least:

[0031] Connecting strip 402 is installed on door panel 2, and a sliding groove is provided on connecting strip 402;

[0032] Connecting seat 401 is fixedly mounted on door frame 1, and connecting bearing is provided on connecting seat 401;

[0033] A connecting rod 403 has a first guide post 404 and a second guide post 405 fixedly installed at both ends. The first guide post 404 is rotatably mounted on the connecting bearing, and the second guide post 405 is limited and mounted in the slide groove. With the above mechanism configuration, it is equivalent to setting an additional rotatable shaft between the door panel 2 and the door frame 1. When the door is opened, this shaft (i.e., the first guide post 404) will change its angle position accordingly. By externally restricting this exposed shaft, the rotation of the door panel 2 can be restricted. For this purpose, a damping supply mechanism can be set here. The damping supply mechanism is used to provide adjustable damping for the rotation of the first guide post 404. By adjusting the size of the damping, the rotation of the door panel 2 can be restricted, that is, the automatic rebound of the door panel 2 can be restricted. Since there are various implementation methods, no further limitations are made here. The preferred implementation method can be referred to in the following text. By restricting the rotation of the first guide post 404, the door panel 2 provides greater rotational resistance after opening, preventing it from rebounding and causing the door to close automatically. When normal rebound is required, the rotational resistance can be reduced or cleared to zero, which is beneficial for applications in multiple scenarios.

[0034] This utility model provides an opening and closing stress-controllable door assembly, specifically a damping mechanism, as shown in the example below. Figure 2 as well as Figure 4As shown, the mechanism includes a second mounting base on which a hollow threaded sleeve 406, concentric with the first guide post 404, is mounted. The hollow threaded sleeve 406 has multiple equally spaced openings along its circumference, and an elastic ring 407 is fitted inside it. The inner diameter of the elastic ring 407 gradually decreases as it points towards the openings. When the first guide post 404 is inserted into the hollow threaded sleeve 406, the change in the inner diameter of the elastic ring 407 causes the metal partition on the opening side of the hollow threaded sleeve 406 to bulge outwards. In this state, the first guide post 404 can still rotate normally, but the elastic ring 407... This provides some damping for rotation, but due to deformation, this damping is not yet controllable. To stabilize and effectively increase the damping, an adjusting ring 408 is threadedly connected to the hollow threaded sleeve 406. The adjusting ring 408 can retract the expansion deformation at the opening slot of the hollow threaded sleeve 406 by rotation. That is, when the adjusting ring 408 rotates, it will retract the outwardly expanding elastic metal sheet inward. At this time, the deformation of the internal elastic ring 407 will further increase the elastic pressure. This elastic pressure and the coefficient of friction are used to ultimately adjust the damping of the first guide post 404. When the provided resistance can prevent the door panel 2 from rebounding, the door panel 2 can be positioned after opening. To prevent long-term friction from causing wear on the elastic ring 407, an oil groove is provided on the second mounting base, and the oil groove is positioned at the rotational engagement position of the first guide post 404, so that the lubricating oil can reduce the coefficient of friction and reduce the impact on the life of the elastic ring 407.

[0035] This utility model provides a door assembly with controllable opening and closing stress. To prevent the connecting strip 402 from being too long and affecting the opening angle of the door panel 2, the aforementioned adjustment mechanism 4 can also include a fixing base 409. Figure 2 As shown, regular polygonal positioning holes are provided on the connecting strip 402 and the fixing seat 409, and polygonal positioning pins 410 for positioning the angle of the connecting strip 402 are also inserted into the fixing seat 409. When it is necessary to avoid the connecting strip 402 from hitting each other, the rotation angle of the door panel 2 can be avoided by replacing the connecting strip 402 with a different specification or adjusting the angle of the connecting strip 402.

[0036] This utility model provides an embodiment of a door assembly with controllable opening and closing stress. As another implementation, a damping mechanism is additionally provided, which includes a fixing plate 501, such as... Figure 8As shown, the fixing plate 501 is provided with a positioning hole concentric with the first guide post 404, and multiple adjusting plates 502 are provided around the fixing hole on the fixing plate 501. An elastic layer is provided on the inner side of each adjusting plate 502, and the outer diameter of each adjusting plate 502 increases linearly in the direction away from the fixing plate 501. Finally, a tension ring 503 is fitted around the outer ring of the multiple adjusting plates 502. Figure 8 As shown, if it is necessary to increase the resistance to the first guide post 404, the tension ring 503 can be pulled down, and the change in the contraction and expansion of the outer arc surface can be used to control the change in resistance to the inner first guide post 404. (Refer to...) Figure 8 The lower the height of the tension ring 503, the greater the resistance it provides. To facilitate control of its height position, an adjusting rod 504 for adjusting the radial position of the tension ring 503 can be provided on the fixed plate 501. The adjusting rod 504 can be a threaded rod.

[0037] This utility model provides a door assembly with controllable opening and closing stress, specifically offering a spring-back component 3 with a spring-back mechanism, as follows: Figure 3 as well as Figure 5 As shown, the spring-loaded assembly 3 includes a positioning seat 301 fixedly mounted above the door frame 1 and an adjusting sleeve 302 fixedly mounted on the door panel 2. The adjusting sleeve 302 has a hollow internal structure and an adjusting element 305 is slidably mounted inside it. A first connecting rod 303 is hinged to the positioning seat 301, and a second connecting rod 304 is hinged to the adjusting sleeve 302. The first connecting rod 303 and the second connecting rod 304 are hinged to each other, connecting the door frame 1 and the door panel 2. To allow the door panel 2 to spring back and close, a toothed plate is provided on the adjusting element 305. Figure 7 As shown, a gear 310 capable of meshing with a gear plate is provided at the bottom of the second connecting rod 304, such as... Figure 5 As shown, a spring 307 is also provided in the adjusting sleeve 302 to cause the adjusting member 305 to rebound. When the door panel 2 is opened, the spring 307 is compressed by the action of the connecting rod. When the door panel 2 is not under force after opening, the spring 307 drives the connecting rod to move by rebounding, thereby driving the door panel 2 to close automatically.

[0038] This utility model provides a door assembly with controllable opening and closing stress. To further optimize the magnitude of the spring force 307, it can be as follows: Figure 3As shown, one end of the spring 307 abuts against the adjusting member 305, and the other end of the spring 307 abuts against the movable plate 306. The movable plate 306 is slidably disposed in the adjusting sleeve 302, and the adjusting sleeve 302 is also provided with a control rod 308 for controlling the radial position of the movable plate 306. The control rod 308 can be a screw. By controlling the position of the movable plate 306, different degrees of compression of the spring 307 can be achieved, thereby achieving control of the elastic force and facilitating control of the rebound speed of the door panel 2.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A door assembly with controllable opening and closing stress, characterized in that, The system includes a door frame (1) and a door panel (2). The door frame (1) is provided with a spring-loaded assembly (3) for connecting the door panel (2). The spring-loaded assembly (3) is used to automatically spring back and close the door panel (2) after it is opened. The door frame (1) is also provided with an adjustment mechanism (4) for connecting the door panel (2) at a position on the hinged connection side of the door panel (2). The adjustment mechanism (4) includes at least: A connecting strip (402) is installed on the door panel (2), and a sliding groove is provided on the connecting strip (402); A connecting seat (401) is fixedly installed on the door frame (1), and a connecting bearing is provided on the connecting seat (401); A connecting rod (403) has a first guide post (404) and a second guide post (405) fixedly installed at both ends. The first guide post (404) is rotatably mounted on the connecting bearing, and the second guide post (405) is limited and mounted in the groove. A damping supply mechanism is provided to provide adjustable damping for the rotation of the first guide post (404).

2. The door assembly with controllable opening and closing stress according to claim 1, characterized in that, The damping mechanism includes a second mounting base on which a hollow threaded sleeve (406) concentric with the first guide post (404) is mounted. The hollow threaded sleeve (406) has multiple slots evenly spaced along its circumference. An elastic ring (407) is fitted inside the hollow threaded sleeve (406). The inner diameter of the inner ring (407) gradually decreases in the direction of the slots. An adjusting ring (408) is threadedly connected to the hollow threaded sleeve (406). The adjusting ring (408) can expand and contract at the slot position of the hollow threaded sleeve (406) by rotation.

3. The door assembly with controllable opening and closing stress according to claim 1, characterized in that, It also includes a fixing seat (409), on which regular polygonal positioning holes are provided, and polygonal positioning pins (410) for positioning the angle of the connecting strip (402) are also inserted on the fixing seat (409).

4. The door assembly with controllable opening and closing stress according to claim 1, characterized in that, The damping mechanism includes a fixed plate (501), on which a positioning hole concentric with the first guide post (404) is provided. A plurality of adjusting plates (502) are provided around the fixing hole on the fixed plate (501). An elastic layer is provided on the inner side of the adjusting plate (502) and the outer diameter of the adjusting plate (502) increases linearly in the direction away from the fixed plate (501). A tension ring (503) is sleeved on the outer ring of the plurality of adjusting plates (502). An adjusting rod (504) for adjusting the radial position of the tension ring (503) is provided on the fixed plate (501).

5. A door assembly with controllable opening and closing stress according to claim 1, characterized in that, The rebound assembly (3) includes a positioning seat (301) fixedly mounted above the door frame (1) and an adjusting sleeve (302) fixedly mounted on the door panel (2). The interior of the adjusting sleeve (302) is hollow and an adjusting member (305) is slidably mounted inside it. A first connecting rod (303) is hinged on the positioning seat (301) and a second connecting rod (304) is hinged on the adjusting sleeve (302). The first connecting rod (303) and the second connecting rod (304) are hinged to each other. A toothed plate is provided on the adjusting member (305). A gear (310) that can mesh with the toothed plate is provided at the bottom of the second connecting rod (304). A spring (307) for causing the adjusting member (305) to rebound is also provided inside the adjusting sleeve (302).

6. A door assembly with controllable opening and closing stress according to claim 5, characterized in that, One end of the spring (307) abuts against the adjusting member (305), and the other end of the spring (307) abuts against the movable plate (306). The movable plate (306) is slidably disposed in the adjusting sleeve (302). The adjusting sleeve (302) is also provided with a control rod (308) for controlling the radial position of the movable plate (306).

7. A door assembly with controllable opening and closing stress according to claim 2, characterized in that, The second mounting base is provided with an oil groove, which points to the rotational engagement position of the first guide post (404).

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