Self-returning door and garbage chamber

Abstract

The invention provides a self-returning door and a garbage chamber. The self-returning door comprises a door plate; the lower fixing piece is fixed to the lower portion of the door plate; the rolling wheel assembly is installed on the lower fixing piece, and the rolling wheel assembly comprises a rolling ball; the lower support is located on the lower side of the door plate, the upper surface of the lower support comprises a first ramp and a second ramp which are located on the two sides of the middle position, the first ramp and the second ramp incline upwards in the direction outwards from the middle position, when force is applied in the first direction to open the self-returning door, the balls roll upwards along the first ramp, and when the force is released, the balls roll upwards along the second ramp. The ball rolls and descends along the first ramp to return to the middle position so as to realize self-closing of the self-returning door; when force is applied in the second direction opposite to the first direction to open the self-returning door, the ball rolls uphill along the second ramp, and after the force is released, the ball rolls downhill along the second ramp to return to the middle position, so that self-closing of the self-returning door is achieved.

Description

Technical Field

[0001] The present invention relates to a self-returning door and a garbage room. Background Art

[0002] At present, when the door is opened and closed in both directions automatically, the only way to achieve the functions of two-way, limit and automatic return is to use floor springs. However, the floor spring components are expensive, difficult to install, the hydraulic mechanical structure is unstable, and it is easy to leak oil and fail after long-term use. The failure rate and maintenance cost of outdoor use are high.

[0003] Therefore, for scenarios where long-term reliable use is desired, it is necessary to design a door structure that can satisfy the function of a floor spring while having a low failure rate and simple installation and maintenance. Summary of the invention

[0004] The present invention provides a self-returning door and a garbage room.

[0005] According to one aspect of the present disclosure, a self-returning door is provided, comprising: a door panel; a lower fixing member, wherein the lower fixing member is fixed to the lower part of the door panel; a roller assembly, wherein the roller assembly is mounted to the lower fixing member, and the roller assembly comprises a ball; and a lower support, wherein the lower support is located at the lower side of the door panel, and the upper surface of the lower support comprises a first ramp and a second ramp located on both sides of a middle position, wherein the first ramp and the second ramp are inclined upward in a direction outward from the middle position, and the inclination angles of the first ramp and the second ramp are 5° to 25°. When a force is applied in a first direction to open the self-returning door, the ball rolls uphill along the first ramp, and when the force is released, the ball rolls downhill along the first ramp back to the middle position to achieve self-closing of the self-returning door. When a force is applied in a second direction opposite to the first direction to open the self-returning door, the ball rolls uphill along the second ramp, and when the force is released, the ball rolls downhill along the second ramp back to the middle position to achieve self-closing of the self-returning door.

[0006] According to the self-returning door of at least one embodiment of the present disclosure, the lower support also includes a first platform position and a second platform position horizontal to the ground, the first ramp is located between the middle position and the first platform position, and the second ramp is located between the middle position and the second platform position, and after the ball rolls to the first platform position or the second platform position, the self-returning door will not automatically return to its position and will remain in a fully open state.

[0007] According to the self-returning door of at least one embodiment of the present disclosure, the ball assembly also includes a ball receiving body and a mounting block, wherein the ball receiving body is used to receive the ball and the ball can rotate relative to the ball receiving body, the mounting block is mounted to the lower fixing member, and the ball receiving portion is connected so as to be movable up and down relative to the mounting block.

[0008] According to the self-returning door of at least one embodiment of the present disclosure, after the force is released, the balls are caused to roll downhill along the first ramp or the second ramp by the gravity of the ball receiving body and the balls.

[0009] According to the self-returning door of at least one embodiment of the present disclosure, the ball containing body includes a block-shaped member and a rod-shaped member, the block-shaped member is used to accommodate the ball, the rod-shaped member is used to be inserted into the mounting hole of the mounting block, and the rod-shaped member can move up and down in the mounting hole.

[0010] According to the self-returning door of at least one embodiment of the present disclosure, the mounting block includes a block body and columnar bodies located on both sides of the block body, an insertion hole is opened in the width direction of the lower fixing member, and an assembly hole is opened on the lower surface of the mounting block. During the process of installing the ball assembly to the lower fixing member, the mounting block is inserted into the insertion hole, and the rod-shaped member is inserted into the assembly hole and the mounting hole in sequence.

[0011] According to the self-returning door of at least one embodiment of the present disclosure, a groove is provided on the lower surface of the lower fixing member, the groove extends along the width direction of the lower fixing member, the assembly hole is opened on the top wall of the groove and is used to accommodate the block member, and the side wall of the groove contacts the outer wall of the block member to prevent the block member from rotating.

[0012] According to the self-returning door of at least one embodiment of the present disclosure, the columnar bodies on both sides of the block body are provided with threads, and after the mounting block is inserted into the insertion hole, the mounting block is fixed on both sides of the lower fixing member by nuts.

[0013] According to the self-returning door of at least one embodiment of the present disclosure, the position of the ball bearing can be adjusted by nuts on both sides of the lower fixing member so that the ball bearing is positioned at the middle position.

[0014] According to at least one embodiment of the self-returning door of the present disclosure, it further includes a pivot shaft, both ends of which are respectively inserted into the lower pivot hole of the lower support and the upper pivot hole of the lower fixing member so that the door panel can rotate around the pivot shaft.

[0015] According to the self-returning door of at least one embodiment of the present disclosure, the door panel is a glass door panel, and the glass door panel is fixed in a groove of the lower fixing member.

[0016] According to the self-returning door of at least one embodiment of the present disclosure, relative to the horizontal direction, the first inclination angle of the first ramp is the same as or different from the second inclination angle of the second ramp.

[0017] According to another aspect of the present disclosure, a garbage room is provided, comprising the self-returning door as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 It is a perspective schematic diagram of a garbage room according to one embodiment of the present disclosure.

[0020] Figure 2 is a front schematic diagram of a garbage room according to an embodiment of the present disclosure.

[0021] Figure 3 It is based on this Figure 2 A partial enlarged view of part A.

[0022] Figures 4 to 6 Schematic diagrams showing the subclavian at different angles.

[0023] Figures 7 to 10 Schematic diagrams showing the roller assembly at different angles.

[0024] Fig.11 Shows Figure 7 AA section view.

[0025] Figure 12 to Figure 13 A schematic diagram of the mounting block is shown.

[0026] Figures 14 to 16 A schematic diagram of the lower fixture is shown.

[0027] Figure 17 to Figure 18 Schematic diagrams showing different angles of the installed lower bracket, roller assembly, pivot shaft and lower fixing member.

[0028] Fig.19 A schematic diagram showing the installed lower bracket, roller assembly, pivot shaft and lower fixing member.

[0029] Fig. 20 yes Fig.19 BB cross-sectional view.

[0030] Fig.21 A schematic diagram showing the installed lower bracket, roller assembly, pivot shaft and lower fixing member.

[0031] Fig. 22 yes Fig.21 BB cross-sectional view.

[0032] Figure 23 to Figure 24Schematic diagram of a support according to another embodiment of the present disclosure.

[0033] Fig.25 A partial schematic diagram showing the self-returning door opening state. DETAILED DESCRIPTION

[0034] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0037] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0038] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0039] Glass doors are required in most prefabricated outdoor houses. At present, mainstream doors can only use floor springs to achieve the functions of two-way opening and closing, limit and automatic return. However, floor springs have several main problems: high cost; difficult installation; unstable hydraulic mechanical structure. They are prone to oil leakage and failure in long-term use. The general warranty period is about one year, and the failure rate and maintenance cost are high.

[0040] In the technical solution of the present application, a new self-returning door is proposed, which can realize two-way opening and closing functions, has low cost, low failure rate and simple installation and maintenance, thereby realizing long-term and reliable use.

[0041] Before describing the technical solution of the present application in detail, the following terms are explained.

[0042] Self-returning door: After being opened, the self-returning door can automatically return to the closed state without the help of external force, thus realizing the function of automatic return. For a two-way self-returning door, whether it is opened inward or outward, the self-returning door will automatically return to the closed state.

[0043] The specific implementation methods of the present application will be described below.

[0044] Figure 1 and Figure 2 The garbage room 10 with a self-returning door is shown, and the garbage room is used when recycling garbage. The user can push open the self-returning door to put the garbage into the garbage room. Figure 1 and Figure 2 The embodiment only shows one application scenario of the self-opening door of the present invention. Those skilled in the art should understand that it can be applied to any other scenarios, such as outdoor houses, indoor houses, commercial houses, etc.

[0045] According to one embodiment of the present application, a self-returning door is provided. Figure 3 Shown as Figure 2 The enlarged view of the part A shown in FIG. Figure 3 As shown, the self-returning door 100 may include a lower support 110, a roller assembly 120, a pivot shaft 130 and a lower fixing member 140. In addition, the self-returning door 100 may include a door panel. The lower fixing member 140 is fixed to the lower part of the door panel. The roller assembly 120 is mounted to the lower fixing member 140. The lower support 110 is located at the lower side of the door panel. The lower support 110, the roller assembly 120, the pivot shaft 130 and the lower fixing member 140 are installed at a position close to the side door frame.

[0046] exist Figures 1 to 3 In the illustrated embodiment, a frameless glass door is used as an example for explanation. In the case of a frameless glass door, the lower fixing member 140 may be a lower door clamp, which may hold the glass. However, it should be understood that the self-returning door of the present application may also be in the form of a wooden door, a steel door, an aluminum alloy door, or a framed glass door. In these forms, the lower fixing member 140 may be fixed to a door panel, for example, a groove may be provided in the door body of a wooden door, a steel door, an aluminum alloy door, or a framed glass door to accommodate and fix the lower fixing member 140.

[0047] First, various components of the self-returning door 100 are described in detail below.

[0048] In the present application, the lower support 110 can be fixed to the ground, or fixed to the lower frame of the house (for example Figure 1 and Figure 2 (in the lower frame 210 of the house form shown). Figure 4 A perspective view showing one orientation of the subiculum, Figure 5 A three-dimensional view showing another direction of the subclavian, Figure 6 A front view of the subclavian is shown.

[0049] The upper surface of the lower support 110 may include a first ramp 111 and a second ramp 112. The first ramp 111 and the second ramp 112 form a V-shape. Figure 6 , the first ramp 111 and the second ramp 112 gradually incline upward from the middle position of the lower support 110 toward the outer position, that is, the positions on both sides of the lower support 110 are higher than the middle position. The first ramp 111 and the second ramp 112 can be inclined plane shapes, such as Figure 6 As shown. The first ramp 111 and the second ramp 112 may also be concave arc surfaces. The inclination angles of the first ramp 111 and the second ramp 112 may be set to a suitable angle, such as 5-25°, so that the self-returning door can smoothly return to the closed position. In the direction from the middle position to the outside, the two ramps on both sides of the middle position are inclined upward.

[0050] When force is applied in a first direction (for example, opening the door outward) to open the self-returning door, the ball rolls uphill along the first ramp, and when the force is released, the ball rolls downhill along the first ramp to return to the middle position, thereby realizing self-closing of the self-returning door; when force is applied in a second direction opposite to the first direction (for example, opening the door inward) to open the self-returning door, the ball rolls uphill along the second ramp, and when the force is released, the ball rolls downhill along the second ramp to return to the middle position, thereby realizing self-closing of the self-returning door.

[0051] The shape of the lower surface of the lower support 110 can be set to a suitable shape, which is not limited in this application. The lower surface of the lower support shown in the figure is generally flat, and a lower rib 113 is provided in the middle. Figure 1 and Figure 2 In the case of the lower frame, the lower rib 113 may be embedded in the groove of the lower frame 210 , thereby fixing the lower support 110 to the lower frame 210 .

[0052] Figures 7 to 10 Showing views of the roller assembly 120 from different angles, Fig.11 Shows Figure 7 The cross-sectional view obtained by the section line AA shown in FIG. The roller assembly 120 may include a ball 121 and a ball receiving body 122. The ball 121 is arranged to contact the upper surface of the lower support 110. When the self-returning door 100 is opened and closed in one direction, the ball 121 rolls along the first ramp 111, and when it is opened and closed in the other direction, the ball 121 rolls along the second ramp 112. When the self-returning door 100 is fully closed, the ball 121 is in the middle position, and when the self-returning door 100 is fully opened, the ball 121 is in a position on one side of the two side positions. When the self-returning door 100 in the closed state is opened, the user applies force to push and pull the self-returning door 100, and the ball 121 rolls along the upper surface of the lower support 110. When the user does not apply force to the self-returning door 100, the ball 121 will automatically roll to the middle position along the upper surface of the lower support 110, thereby realizing the automatic closing of the self-returning door 100.

[0053] The ball receiving body 122 is used to receive the ball 121, and the ball 121 can rotate smoothly relative to the ball receiving body 122. The ball receiving body 122 is mounted to the mounting block and is connected so as to be movable up and down relative to the mounting block. As an example, the ball receiving body 122 can wrap most of the ball 121 to ensure that the ball 121 does not fall out of the ball receiving body 122. As an example, the most part is larger than one-half of the volume of the ball 121, such as two-thirds, etc. In this way, the lower part of the ball 121 is exposed from the ball receiving body 122 and can roll on the upper surface of the lower support 110. As shown in the figure, the ball and the ball receiving body are arranged in the form of a bull's eye wheel.

[0054] like Figures 7 to 11 As shown, the shape of the ball receiving body 122 can be set to an inverted T shape. Fig.11 The lower part of the ball containing body 122 shown in the figure is a block-shaped member 1221 and the upper part is a rod-shaped member 1222. The block-shaped member 1221 and the rod-shaped member 1222 can be formed integrally, or they can be formed separately and then fixed together. The block-shaped member 1221 is used to accommodate the ball 121. The rod-shaped member 1222 is used to connect the mounting block 123. A mounting hole 1231 (e.g., a through hole) of the mounting block is provided on the mounting block 123. The mounting hole 1231 of the mounting block can penetrate the mounting block 123 in the up and down directions. The rod-shaped member 1222 is inserted into the mounting hole 1231 of the mounting block and can move up and down in the mounting hole 1231 of the mounting block.

[0055] It should be understood that during the opening and closing process of the self-returning door 100, the ball 121 rolls on the upper surface of the lower support 110, which causes the ball receiving body 122 to move up and down. Then the rod-shaped member 122 moves up and down in the mounting hole 1231 of the mounting block of the mounting block 123. In the present application, preferably, the ball receiving body 122 and the ball 121 realize the contact between the ball and the first ramp or the second ramp through the action of gravity, so that the ball rolls downhill along the ramp. Alternatively, elastic components such as springs can also be provided to realize the elastic action of the ball receiving body 122 and the mounting block 123. For example, one end of the spring abuts the mounting block 123, and the other end abuts the ball receiving body 122. Relative to the mounting block 123, the spring applies a downward elastic force to the ball receiving body 122. Those skilled in the art should understand that the spring can apply further elastic force on the basis of the action of gravity, and its specific mounting structure can be designed according to actual conditions.

[0056] Fig.12 An angled schematic view of the mounting block 123 is shown (viewed from above). Fig.13 The schematic diagram of another angle of the mounting block 123 (viewed from the bottom) is shown. The mounting block 123 may be a block 1232, wherein the mounting hole 1231 of the mounting block is provided in the block 1232. A column 1233 may be provided on the block 1232. Both ends of the column 1233 are provided with threads (not shown in the figure).

[0057] Figures 14 to 16Schematic diagrams of three angles of the lower fixing member 140 are shown. The lower fixing member 140 includes a groove 1401, wherein the groove 1401 can extend along the width direction of the lower fixing member 140. The groove 1401 is used to accommodate the block 1221 of the ball receiving body 122. For example, the upper part of the block 1221 can be accommodated in the groove 1401 to prevent the block 1221 from rotating relative to the lower fixing member 140. The groove 1401 is opened on the lower surface of the lower fixing member 140. An assembly hole 1402 is opened on the top wall of the groove 1401. After the ball receiving body 122 is mounted on the lower fixing member 140, the assembly hole 1402 is aligned with the mounting hole 1231 of the mounting block, so that the rod-shaped member 1222 can be inserted from the assembly hole 1402. After the mounting block 123 is mounted on the lower fixing member 140, the rod-shaped member 1222 can be inserted into the mounting hole 1231 of the mounting block of the mounting block 123. As an example, the cross-sectional shape of the block is a polygon, and the outer wall of the block contacts the side wall of the groove to prevent the block from rotating.

[0058] In addition, an insertion hole 1403 is also provided in the width direction of the lower fixing member 140. The insertion hole 1403 runs through the left and right sides of the lower fixing member 140. The shape of the insertion hole 1403 can match the shape of the block 1232 to accommodate the block 1232. In the present application, the shapes of the insertion hole 1403 and the block 1232 are preferably set to be square.

[0059] The lower fixing member 140 shown in the figure is a self-returning door in the form of a glass door. For this form of self-returning door, a mounting groove 1404 is provided on the lower fixing member 140. The glass door can be embedded in the groove 1404, and the glass is fixed by the holes and screws shown in the side of the figure.

[0060] Figures 17 to 22 A schematic diagram showing the lower support 110 , the roller assembly 120 , the pivot shaft 130 and the lower fixing member 140 after installation is shown. Fig. 20 Shows Fig.19 The cross-sectional view of the BB section, Fig. 22 Shows Fig.21 As shown in the figure, the pivot shaft 130 is disposed between the lower fixing member 140 and the lower support 110 so that the door mounted on the lower fixing member can rotate around the pivot shaft 130. Figure 4 As shown, a lower pivot hole 131 is provided on the lower support 110. Fig.14 As shown, an upper pivot hole 132 is provided on the lower fixing member 140. Both ends of the pivot shaft 130 are respectively inserted into the lower pivot hole 131 and the upper pivot hole 132 so that the door panel can rotate around the pivot shaft.

[0061] According to the technical solution disclosed in the present invention, the component structure is simple and easy to assemble. During the assembly process, the lower fixing member 140 is fixed on the door panel (such as glass), and the mounting block 123 is inserted into the insertion hole 1403 of the lower fixing member 140. Then the ball receiving body 122 of the roller assembly 120 (the ball 121 has been installed in the ball receiving body 122 at this time, and the ball 121 and the ball receiving body 122 can be an integral component shipped from the factory) is installed in the lower fixing member 140. During the installation process, the rod-shaped member 1222 of the ball receiving body 122 is inserted into the mounting hole 1402 of the lower fixing member 140, and is also inserted into the mounting hole 1231 of the mounting block. Then, the gasket 1234 and the nut 1235 are installed on the columnar bodies 1233 on both sides. In addition, according to the technical solution of the present application, a fine-tuning function can also be realized. After the installed door panel is placed on the lower support 110, the nuts on both sides can be fine-tuned to fine-tune the position of the roller. The position of the ball is finely adjusted by a bidirectional screw (columnar body 1233) in a direction perpendicular to the ramp (upper surface) of the lower support 110 so as to be positioned exactly at the bottom of the ramp.

[0062] In the technical solution of the present application, the limiting function and the supporting function are achieved through the cooperation of the roller assembly and the lower support and through a ramp with a slight height difference.

[0063] In addition, the self-opening door 100 of the present disclosure may further include an upper fixing member 150. The upper fixing member may be a standard member. For example, the upper fixing member may clamp the glass or be fixed to a wooden door panel, etc., and may be provided with a pivot shaft and be able to rotate around the pivot shaft. It should be understood by those skilled in the art that a suitable upper fixing member and a connection method with the door frame may be used, which will not be described in detail herein.

[0064] In addition, if Figure 4 As shown, the lower support 100 may also include platform positions 114 on both sides, and the platform positions may include a first platform position and a second platform position. The first ramp is located between the middle position and the first platform position, and the second ramp is located between the middle position and the second platform. The platform position 114 is set to be horizontal relative to the ground and extends outward by a preset width. If the roller is pushed to the platform position (for example, when the door opening angle is about 90 degrees or greater than 90 degrees), the roller will be lifted to the platform position, and the door will no longer automatically return to its position and will be in a fully open state. When the door needs to be closed, the user needs to apply force to make the roller enter the ramp before it will automatically close.

[0065] Fig.23 and Fig.24FIG. 2 shows the structure of the undercarriage according to another embodiment of the present disclosure. The difference from the undercarriage described above is that in the previous embodiment, the inclination angles of the first ramp and the second ramp can be the same, but in this other embodiment, the inclination angles of the first ramp and the second ramp are different. Fig.23 and Fig.24 As shown, the first inclination angle θ1 of the first ramp 111 is smaller than the second inclination angle θ2 of the second ramp 112. The inclination angle refers to the inclination angle of the ramp relative to the horizontal plane (the angle with the horizontal plane). The first inclination angle θ1 and the second inclination angle θ2 can be 5-25 degrees.

[0066] According to the lower support of this embodiment, for installation sites with a sloped ground, the direction of the lower support can be adjusted to reduce the imbalance caused by the slope of the ground. By adjusting the installation direction or position of the lower support, the inclination angles of the first ramp and the second ramp relative to the horizontal direction can be adjusted, for example, the inclination angles relative to the horizontal plane are the same or different. In addition, after installation, the two ramps have different inclination angles relative to the horizontal direction, and the ramp with a larger inclination angle can make the self-returning door return faster, which can guide the user's door opening habits, etc.

[0067] like Fig.24 As shown, two lower pivot holes 131 may be provided on the lower support 110. During installation, the lower pivot shaft will use the lower pivot hole close to the side door frame. This allows for both installation directions (i.e., the left door or the right door).

[0068] The self-returning door disclosed in the present invention can return to its original position by gravity through a simple physical structure, thus avoiding the problem of easy damage of traditional floor springs, greatly extending the service life, saving maintenance and installation costs, and reducing the failure rate.

[0069] In the present application, the following method can be used in the process of installing the entire door panel. Fix the upper and lower fixings to the door panel, and then install the roller assembly to the lower fixing. Keep the roller assembly loose and not fixed in position for fine adjustment. Then install the upper pivot shaft and the lower pivot shaft to the door frame, and install the lower support, etc. Lift the door panel, align the upper pivot shaft and the lower pivot shaft, and insert them into the holes of the upper and lower fixings. Finally, fine-tune the position of the roller assembly and fix the nuts at both ends.

[0070] During the normal opening and closing process of the door, the roller rolls up the ramp. After the push and pull force is released (the user lets go), due to the effect of gravity, the roller will roll down the ramp to achieve automatic closing and resetting. Fig.25 In FIG. , the self-returning door is shown in an open state.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A self-returning door, characterized in that: include: Door panels; a lower fixing member fixed to a lower portion of the door panel; a roller assembly mounted to the lower fixture and including a ball bearing; and A lower support, the lower support is located at the lower side of the door panel, the upper surface of the lower support includes a first ramp and a second ramp located on both sides of a middle position, the first ramp and the second ramp are inclined upward in a direction outward from the middle position, and the inclination angle of the first ramp and the second ramp is 5° to 25°, When force is applied in a first direction to open the self-returning door, the ball rolls uphill along the first ramp, and when the force is released, the ball rolls downhill along the first ramp back to the middle position, thereby realizing self-closing of the self-returning door; when force is applied in a second direction opposite to the first direction to open the self-returning door, the ball rolls uphill along the second ramp, and when the force is released, the ball rolls downhill along the second ramp back to the middle position, thereby realizing self-closing of the self-returning door.

2. The self-opening door according to claim 1, characterized in that: The lower support also includes a first platform position and a second platform position horizontal to the ground, the first ramp is located between the middle position and the first platform position, and the second ramp is located between the middle position and the second platform position. After the ball rolls to the first platform position or the second platform position, the self-returning door will not automatically return to its position and will remain in a fully open state.

3. The self-opening door according to claim 1, characterized in that: The ball assembly also includes a ball receiving body and a mounting block, wherein the ball receiving body is used to receive the ball and the ball can rotate relative to the ball receiving body, the mounting block is mounted to the lower fixing member, and the ball receiving part is connected so as to be movable up and down relative to the mounting block.

4. The self-opening door according to claim 3, characterized in that: After the force is released, the ball receiving body and the weight of the ball cause the ball to roll down the first ramp or the second ramp.

5. The self-returning door according to claim 3 or 4, characterized in that: The ball receiving body comprises a block-shaped member and a rod-shaped member, wherein the block-shaped member is used to receive the ball, and the rod-shaped member is used to be inserted into the mounting hole of the mounting block, and the rod-shaped member can move up and down in the mounting hole.

6. The self-opening door according to claim 5, characterized in that: The mounting block includes a block body and columnar bodies located on both sides of the block body, an insertion hole is opened in the width direction of the lower fixing member, and an assembly hole is opened on the lower surface of the mounting block. During the process of installing the ball assembly to the lower fixing member, the mounting block is inserted into the insertion hole, and the rod-shaped member is inserted into the assembly hole and the mounting hole in sequence.

7. The self-opening door according to claim 6, characterized in that: A groove is provided on the lower surface of the lower fixing member, and the groove extends along the width direction of the lower fixing member. The assembly hole is opened on the top wall of the groove and is used to accommodate the block member. The side wall of the groove contacts the outer wall of the block member to prevent the block member from rotating.

8. The self-returning door according to claim 6 or 7, characterized in that: The columnar bodies on both sides of the block body are provided with threads, and after the mounting block is inserted into the insertion hole, the mounting block is fixed on both sides of the lower fixing member by nuts.

9. The self-returning door according to any one of claims 1 to 8, characterized in that: Optionally, the position of the ball can be adjusted by nuts on both sides of the lower fixing member so that the ball is positioned at the middle position. Optionally, it further comprises a pivot shaft, the two ends of which are respectively inserted into the lower pivot hole of the lower support and the upper pivot hole of the lower fixing member, so that the door panel can rotate around the pivot shaft. Optionally, the door panel is a glass door panel, and the glass door panel is fixed in the groove of the lower fixing member. Optionally, relative to the horizontal direction, a first inclination angle of the first ramp is the same as or different from a second inclination angle of the second ramp.

10. A garbage room, characterized in that: It comprises the self-returning door as claimed in any one of claims 1 to 9.

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