Spherical rotary protective door

Abstract

The invention relates to a spherical rotating protective door which comprises a door leaf, a door frame and a supporting base. The door frame comprises two pairs of frame bodies. Wherein one pair of frame bodies are arranged at intervals along a first direction, and the other pair of frame bodies are arranged at intervals along a second direction. Local spherical surfaces are formed on the opposite side faces of each pair of frame bodies. And a spherical space is defined by the arc surfaces of the four sections of frame bodies. And a first interval and a second interval are formed among the four sections of frame bodies. And the two first intervals are communicated with the outside. The two second spaces are closed. The door leaf is spherical and is contained in the spherical space. The bottom of the door leaf is connected with the supporting base, so that the door leaf can rotate around the axis of the door leaf in the vertical direction in the spherical space. And a square entrance is formed in the door leaf. The square entrance and exit centrally penetrates through the door leaf in the horizontal direction. The door leaf can be switched between an opening state and a closing state by rotating the door leaf. The load bearing capacity is good, and the situation of large span can be considered.

Description

Technical Field

[0001] The invention relates to the technical field of protective doors, in particular to a spherical rotating protective door. Background Art

[0002] Protective doors are mainly used to resist strong dynamic loads and are mainly composed of door leaves, door frames, locks, hinges and other components. Existing protective doors are mostly beam-slab structures and arch structures, and are vertically opened and closed.

[0003] Although beam-slab protective doors can solve the problem of large-span protection with opening sizes of more than 4000mm*4000mm, their load-bearing capacity is not high. Arched protective doors are generally single-leaf structures with a span of no more than 2000mm, which cannot effectively solve the problem of balancing large spans and ultra-high resistance.

[0004] Therefore, there is a need for a protective door that can provide large-span protection and has better load-bearing capacity. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a spherical rotating protective door.

[0006] The spherical rotating protective door provided by the present invention adopts the following technical solution:

[0007] A spherical rotating protective door, comprising a door leaf, a door frame and a supporting base; wherein the door frame comprises two pairs of frames; one pair of the frames are arranged at intervals along a first direction, and the other pair of the frames are arranged at intervals along a second direction; the first direction and the second direction are horizontal and perpendicular to each other; partial spherical surfaces are formed on the opposite sides of each pair of the frames; a spherical space is surrounded by the partial spherical surfaces of four sections of the frames; a spherical space is surrounded by the partial spherical surfaces of four sections of the frames; a total of four intervals are formed between the four sections of the frames, two opposite intervals are first intervals, and the other two opposite intervals are second intervals; two of the first intervals are connected to the outside; two of the second intervals are closed; the door leaf is spherical, and its diameter and is accommodated in the spherical space; the bottom of the door leaf is connected to the supporting base so that the door leaf can rotate around its own axis in the vertical direction in the spherical space; a square entrance and exit is opened on the door leaf; the square entrance and exit passes through the door leaf in the horizontal direction and in the center; the door leaf has an open state and a closed state; when the door leaf is in the open state, the square entrance and exit connects the two first intervals, and the square entrance and exit is available for passage; when the door leaf is in the closed state, the square entrance and exit connects the two second intervals, and the square entrance and exit is closed; by rotating the door leaf, the door leaf can switch between the open state and the closed state.

[0008] Optionally, the bottom of the door leaf is a circular plane; a ball bearing is provided at the bottom of the door leaf; a circular track is provided on the upper side of the support base; the ball bearing is embedded in the circular track and can roll in the circular track.

[0009] Optionally, there are multiple circular tracks; the multiple circular tracks have different diameters and are coaxially distributed; there are multiple balls; the multiple balls are distributed on multiple different circumferences at the bottom of the door leaf; the circumferences correspond one-to-one to the circular tracks, and are coaxial and have the same diameter as the corresponding circular tracks; the balls on any circumference are embedded in the circular track corresponding to the circumference.

[0010] Optionally, the door leaf and the supporting base are partially located below the ground after being combined; and the bottom wall of the square entrance and exit is flush with the ground.

[0011] Optionally, a driving assembly is also included for driving the door leaf to rotate.

[0012] Optionally, the driving assembly includes a handle; the handle is arranged on the side of the door leaf and is used for manually rotating the door leaf.

[0013] Optionally, the drive assembly includes a reduction motor, a transmission component and a remote control module; the transmission component includes a transmission gear set and an electromagnetic clutch; the reduction motor drives the door leaf to rotate via the transmission gear set; the electromagnetic clutch controls the engagement or disengagement of the transmission gear set; the remote control module is communicatively connected to the reduction motor; the remote control module is used to remotely control the start and stop of the reduction motor via a controller communicatively connected thereto.

[0014] Optionally, the side length of the square corresponding to the square entrance and exit is at least 4000 mm.

[0015] As described above, the spherical rotating protective door of the present invention has at least the following beneficial effects:

[0016] 1. The door leaf of the spherical rotating protective door of the present application is spherical, and the door frame is composed of four frames arranged symmetrically at 90 degrees to each other. The surface of the frame opposite to another frame is also a partial spherical surface. The partial spherical surfaces of the four frames are evenly fitted with the outer surface of the door leaf. Not only is the force-bearing area large, but the force is spherical, and it can bear the loads in the front and rear directions transmitted by the door leaf separately or simultaneously. Compared with the existing beam-type protective doors and arched protective doors, it has a high load-bearing capacity and can take into account the situation of large spans. In addition, the spherical rotating protective door of the present application can be opened and closed by rotating the door leaf, eliminating the locking mechanism of the protective door that traditionally bears reverse loads, and the structure is simpler.

[0017] 2. The door leaf is seated on the support base through the ball bearings evenly arranged at the bottom. The support base bears the weight of the door leaf, eliminating the traditional load-bearing hinge mechanism of the protective door, and the rolling of the ball bearings provides the freedom of rotation of the door leaf.

[0018] 3. The drive assembly includes a handle, a reduction motor, a transmission component and a remote control module, which can realize automatic control of the door leaf and can also easily realize manual operation of the door leaf when there is no electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the spherical rotating protective door in the open state.

[0020] Figure 2 It is a schematic diagram of the spherical rotating protective door in a closed state.

[0021] Figure 3 It is a top view used to reflect the positional relationship between the square entrance and exit and the first interval when the door leaf is in an open state.

[0022] Figure 4 It is a schematic diagram used to illustrate the hemispherical hole and ball structure at the bottom of the door leaf.

[0023] Figure 5 It is a schematic diagram used to reflect the support base and the circular track structure thereon.

[0024] Figure numerals: 1. door leaf; 2. frame; 21. partial spherical surface; 22. first interval; 23. second interval; 3. support base; 4. square entrance and exit; 5. hemispherical hole; 6. ball bearing; 7. circular track; 8. transmission gear set. DETAILED DESCRIPTION

[0025] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not indicated in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0026] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0027] The present invention discloses a spherical rotating protective door, which comprises a door leaf 1, a door frame and a supporting base 3.

[0028] Please refer to Figure 1-5 The door frame includes two pairs of frames 2. One pair of frames 2 is arranged at intervals along the first direction, and the other pair of frames 2 is arranged at intervals along the second direction. The first direction and the second direction are horizontal and perpendicular to each other. A partial spherical surface 21 is formed on the opposite sides of each pair of frames 2. A spherical space is surrounded by the partial spherical surfaces 21 of the four sections of frames 2. A total of four intervals are formed between the four sections of frames 2, of which the two opposite intervals are the first intervals 22, and the other two opposite intervals are the second intervals 23. The two first intervals 22 are connected to the outside. The two second intervals 23 are closed. The door leaf 1 is spherical, and its diameter is contained in the spherical space. The bottom of the door leaf 1 is connected to the support base 3, so that the door leaf 1 can rotate around its own axis in the vertical direction in the spherical space. A square entrance and exit 4 is opened on the door leaf 1. The square entrance and exit 4 passes through the door leaf 1 in the horizontal direction and in the center. The door leaf 1 has an open state and a closed state. When the door leaf 1 is in an open state, the square entrance 4 connects the two first compartments 22, and the square entrance 4 is accessible. When the door leaf 1 is in a closed state, the square entrance 4 connects the two second compartments 23, and the square entrance 4 is closed. By rotating the door leaf 1, the door leaf 1 can be switched between an open state and a closed state.

[0029] For details, please refer to Figure 1-3 The reason why the door leaf 1 is spherical, rather than ellipsoidal or other rotating body shapes, is that a spherical object can disperse the force more evenly when subjected to force, and thus has a stronger load-bearing capacity than other rotating bodies. For this reason, the spherical rotating protective door of the present application has a higher load-bearing capacity.

[0030] The frame 2 is a bar-shaped steel structure. The side of the frame 2 facing away from the other frame 2 opposite to it can be embedded in the surrounding wall to achieve fixation. In addition, the part of the frame 2 that is not embedded should be large enough so that the door leaf 1 can rotate freely after being installed in the spherical space. The partial spherical surface 21 on the frame 2 is a part of the spherical surface, and its shape matches the shape of the door leaf 1, so as not to interfere with the free rotation of the door leaf 1 in the spherical space.

[0031] When the four frames 2 are installed in place, the two first compartments 22 face the passage where the door leaf 1 is located, and the two second compartments 23 face the wall. Therefore, by rotating the door leaf 1 and adjusting whether the two first compartments 22 are connected, the door leaf 1 can be switched between the open state and the closed state.

[0032] In order to enable the door leaf 1 to rotate freely around its own vertical axis after being connected to the support base 3, the door leaf 1 and the support base 3 can be connected in a variety of ways. For example, a rotating shaft with a vertical axis is provided on the support base 3, and the rotating shaft passes through the door leaf 1, so that the door leaf 1 can rotate around the rotating shaft. For another example, a plurality of rollers are provided at the bottom of the door leaf 1, and the door leaf 1 can rotate freely on the support base 3 through the rollers.

[0033] Please refer to Figure 4 , 5 In a preferred embodiment of the present application, the bottom of the door leaf 1 is a circular plane, and a ball bearing 6 is arranged on the bottom. A circular track 7 is provided on the upper side of the support base 3. The ball bearing 6 is embedded in the circular track 7 and can roll in the circular track 7. The support base 3 is disc-shaped.

[0034] Specifically, a hemispherical hole 5 is formed at the bottom of the door leaf 1. The diameter of the hemispherical hole 5 matches the diameter of the ball 6 so that the ball 6 can be embedded therein. The door leaf 1 restricts the ball 6 between the hemispherical hole 5 and the circular track 7 by its own weight, so that the door leaf 1 can rotate by the ball 6 without the ball 6 falling out of the annular groove or the circular track 7.

[0035] The number of circular tracks 7 can be one or more. When the number of circular tracks 7 is more than one, the diameters of the multiple circular tracks 7 are different and they are coaxially distributed. The number of balls 6 is more than one. Multiple balls 6 are distributed on multiple different circumferences at the bottom of the door leaf 1, and a number of hemispherical holes 5 are opened on each circumference, and a ball 6 is arranged in each hemispherical hole 5. The circumference where the ball 6 is located corresponds to the circular track 7 one by one, and is coaxial and has the same diameter as the corresponding circular track 7. The ball 6 on any circumference is embedded in the circular track 7 corresponding to the circumference. The number of circular tracks 7 and the number of balls 6 on each circumference can be selected according to the actual use requirements of the spherical rotating protective door.

[0036] In order to withstand higher loads, existing protective doors adopt a four-sided force-bearing method, that is, the protective door is pressed against the edges on all sides and overlapped with the door frame, so a threshold protruding from the ground is generally provided, which causes inconvenience for the passage of personnel and equipment. The spherical rotating protective door of the present application adopts a threshold-free design: the door leaf 1 and the support base 3 are partially located below the ground after being combined, so that the bottom wall of the square entrance and exit 4 is flush with the ground. That is, during the construction of the spherical rotating protective door of the present application, the support base 3 and the part of the door leaf 1 located below the bottom wall of the square entrance and exit 4 are both set below the ground.

[0037] It should be noted that the ground here refers to the passage surface for people and equipment, which can be the ground surface or the surface of the floor, paved surface, etc.

[0038] Since the door leaf 1 of the spherical rotating protective door of the present application is spherical, and the square entrance 4 therein is also centrally arranged, the door leaf 1 is a uniform and symmetrical whole, and has a good load bearing capacity in the case of a large span. Furthermore, the side length of the square corresponding to the square entrance 4 is at least 4000 mm, for example, it can be 4000 mm, 4500 mm, or 5000 mm.

[0039] Please continue to refer to Figure 1 , 2 The spherical rotating protective door of the present application further comprises a driving assembly. The driving assembly is used to drive the door leaf 1 to rotate.

[0040] Specifically, the driving assembly includes a handle. The handle is arranged on the side of the door leaf 1 and is used to manually rotate the door leaf 1. The driving assembly also includes a reduction motor, a transmission component and a remote control module. The transmission component includes a transmission gear set 8 and an electromagnetic clutch. The reduction motor drives the door leaf 1 to rotate through the transmission gear set 8. The reduction motor, the transmission component and the remote control module are all arranged above the door leaf 1. The electromagnetic clutch controls the engagement or disengagement of the transmission gear set 8. The remote control module is connected to the reduction motor in communication. The remote control module is used to remotely control the start and stop of the reduction motor through a controller connected to it in communication.

[0041] Figure 1 , 2 The transmission gear set 8 in the figure only exemplarily shows a case where two mutually meshing bevel gears are used as the transmission gear set 8. In actual application, other forms of more complex transmission gear sets 8 can be used.

[0042] In actual use, the handle is used to manually open and close the door leaf 1 when there is no electricity. The reduction motor, the transmission component and the remote control module can realize the automatic control of the door leaf 1, and the opening and closing of the door leaf 1 can be remotely controlled.

[0043] The spherical rotating protective door of the present application has the following advantages:

[0044] 1. The door leaf 1 of the spherical rotating protective door of the present application is spherical, and the door frame is composed of four frames 2 arranged symmetrically at 90 degrees to each other. The surface of the frame 2 opposite to another frame 2 is also a partial spherical surface 21. The partial spherical surfaces 21 of the four frames 2 are evenly fitted with the outer surface of the door leaf 1. Not only is the force-bearing area large, but it is also spherical force-bearing. It can bear the loads in the front and rear directions transmitted by the door leaf 1 separately or simultaneously. Compared with the existing beam-slab protective doors and arched protective doors, it has a high load-bearing capacity and can take into account the situation of large spans. In addition, the spherical rotating protective door of the present application can be opened and closed by rotating the door leaf 1, eliminating the locking mechanism of the protective door that traditionally bears reverse loads, and the structure is simpler.

[0045] 2. The door leaf 1 is seated on the support base 3 through the balls 6 evenly arranged at the bottom. The support base 3 bears the weight of the door leaf 1, eliminating the traditional load-bearing hinge mechanism of the protective door. The rolling of the balls 6 provides the door leaf 1 with the freedom of rotation.

[0046] 3. The driving assembly includes a handle, a reduction motor, a transmission component and a remote control module, which can realize automatic control of the door leaf 1 and can also easily realize manual operation of the door leaf 1 when there is no electricity.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A spherical rotating protective door, characterized in that: It comprises a door leaf (1), a door frame and a supporting base (3); wherein: The door frame comprises two pairs of frames (2); one pair of the frames (2) are arranged at intervals along a first direction, and the other pair of the frames (2) are arranged at intervals along a second direction; the first direction and the second direction are horizontal and perpendicular to each other; a partial spherical surface (21) is formed on the opposite side surfaces of each pair of the frames (2); a spherical space is enclosed between the partial spherical surfaces (21) of the four sections of the frames (2); A total of four intervals are formed between the four sections of the frame (2), wherein two opposite intervals are first intervals (22), and the other two opposite intervals are second intervals (23); the two first intervals (22) are connected to the outside; and the two second intervals (23) are closed; The door leaf (1) is spherical and is accommodated in the spherical space; the bottom of the door leaf (1) is connected to the supporting base (3), so that the door leaf (1) can rotate around its own axis in the vertical direction in the spherical space; The door leaf (1) is provided with a square entrance and exit (4); the square entrance and exit (4) passes through the door leaf (1) in a horizontal direction and in the center; The door leaf (1) has an open state and a closed state; When the door leaf (1) is in the open state, the square entrance (4) communicates with the two first compartments (22), and the square entrance (4) is accessible; When the door leaf (1) is in the closed state, the square entrance (4) communicates with the two second compartments (23), and the square entrance (4) is closed; By rotating the door leaf (1), the door leaf (1) can be switched between the open state and the closed state.

2. The spherical rotating protective door according to claim 1, characterized in that: The bottom of the door leaf (1) is a circular plane; A ball bearing (6) is arranged at the bottom of the door leaf (1); a circular track (7) is provided on the upper side of the support base (3); the ball bearing (6) is embedded in the circular track (7) and is capable of rolling in the circular track (7).

3. The spherical rotating protective door according to claim 2, characterized in that: The number of the circular tracks (7) is multiple; the multiple circular tracks (7) have different diameters and are coaxially distributed; The number of the balls (6) is multiple; the balls (6) are distributed on multiple different circumferences at the bottom of the door leaf (1); the circumferences correspond to the circular tracks (7) one by one, and are coaxial with the corresponding circular tracks (7) and have the same diameter; The balls (6) on any of the circumferences are embedded in the circular track (7) corresponding to the circumference.

4. The spherical rotating protective door according to claim 1, characterized in that: The door leaf (1) and the support base (3) are partially located below the ground after being combined; and the bottom wall of the square entrance (4) is flush with the ground.

5. The spherical rotating protective door according to claim 1, characterized in that: It also comprises a driving assembly for driving the door leaf (1) to rotate.

6. The spherical rotating protective door according to claim 5, characterized in that: The driving assembly comprises a handle; the handle is arranged on the side of the door leaf (1) and is used for manually rotating the door leaf (1).

7. The spherical rotating protective door according to claim 5, characterized in that: The driving assembly includes a reduction motor, a transmission component and a remote control module; The transmission component comprises a transmission gear set (8) and an electromagnetic clutch; the reduction motor drives the door leaf (1) to rotate via the transmission gear set (8); the electromagnetic clutch controls the transmission gear set (8) to engage or disengage; The remote control module is connected to the reduction motor for communication; the remote control module is used to remotely control the start and stop of the reduction motor through a controller connected to the remote control module for communication.

8. The spherical rotating protective door according to claim 1, characterized in that: The side length of the square corresponding to the square entrance and exit (4) is at least 4000 mm.

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