CN110847762B

CN110847762B - Space-saving door for warehouse

Info

Publication number: CN110847762B
Application number: CN201911009708.2A
Authority: CN
Inventors: 龙艳
Original assignee: Pizhou Xinsheng Venture Capital Co Ltd
Current assignee: Pizhou Xinsheng Venture Capital Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2021-12-03
Anticipated expiration: 2039-10-23
Also published as: CN110847762A

Abstract

The invention belongs to the technical field of warehouse doors, and particularly relates to a space-saving door used in a warehouse, which comprises two deformed door mechanisms, wherein the two deformed door mechanisms serving as double-opening door leaves are symmetrically arranged at door openings on a wall body; the present invention allows for full opening and full closing of the warehouse interior relative to existing similar warehouse door structures. In addition, in the closing process from the opening state, the sliding block is reset upwards, the reset spring in the stretching state is used for pulling the sliding block in an auxiliary mode, so that the sliding block drives the corresponding tripod A to reset through the shaft A in a labor-saving mode, and a person can easily close the doorway only with small force in the door closing process.

Description

Space-saving door for warehouse

Technical Field

The invention belongs to the technical field of warehouse doors, and particularly relates to a space-saving door used in a warehouse.

Background

The traditional warehouse door adopts two forms, one is a push-pull type, and the other is a double-open type; the double-open bin gate has the following disadvantages: in the opening and closing process, the occupied space is large, the movement of people near the door is obstructed, and the people near the door is easy to collide. The push-pull bin door has the defects that the installation of the push-pull bin door needs to be matched with a corresponding sliding track and a roller matched with the sliding track; the track is easy to wear, and the replacement cost is high; the roller is easy to damage, the service life is lower, the replacement frequency is higher, and therefore the maintenance cost of the bin door is increased. The traditional double-opening type or push-pull type door frame needs to be provided with a matched door frame, so that the installation cost of the bin door is further increased, and meanwhile, the maintenance workload of the bin door is increased by the door frame; secondly, the door frame is used as the support to the door leaf, and the installation process of the door frame itself is more complicated, and the processing of the relevant structure of the door frame is also more complicated. In view of the above disadvantages of the conventional door, it is necessary to design a door which occupies a small space during movement and has a low maintenance cost.

The invention designs a space-saving door for a warehouse to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a space-saving door used for a warehouse, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A space-saving door for a warehouse, comprising: the door comprises two door deforming mechanisms, wherein the two door deforming mechanisms serving as double-opening door leaves are symmetrically arranged at the door openings on the wall body.

The deformation door mechanism comprises a square upright post, a shaft A, a positioning seat, a telescopic shaft, a shaft B, a return spring, a tripod A, a tripod B and a universal hinge structure, wherein the square upright post is vertically arranged in an installation groove on the side of a wall door; a sliding block is vertically slid in the sliding groove B in the upper section of the square upright post, and a return spring for returning the sliding block is arranged on the sliding block; two ends of a shaft A matched with the sliding block bearing respectively penetrate through a sliding groove C on the side surface of the square upright post and vertically slide in a sliding groove A on the wall along with the sliding block, and the shaft A is perpendicular to the wall surface; two ends of a shaft B matched with the bearing at the lower end of the square upright post penetrate through the shaft holes in the wall body, and the shaft B is parallel to the shaft A; the right angles of two non-isosceles right-angle triangular supports A of which the surfaces are parallel to the wall surface are fixedly connected with a shaft A and a shaft B respectively, and the two triangular supports A swing on the outer wall surface of the wall body around the central axes of the shaft A and the shaft B respectively; the bevel edge frame of each tripod A is hinged with the bevel edge frame of a non-isosceles right-angle tripod B through a shaft C; the bevel edge of the tripod A is parallel to the bevel edge of the tripod B hinged with the tripod A; the right angles of the two tripods B are connected through a universal hinge structure.

The manually driven telescopic shaft vertically rotates on the inner wall surface of the wall body, and the end of an inner shaft of the telescopic shaft is positioned at the upper end of the whole telescopic shaft; the inner shaft of the telescopic shaft is in rotating fit with a positioning seat fixedly arranged on the sliding block; the telescopic shaft is in transmission connection with the shaft A and the shaft B.

When the door leaf formed by the two tripods A and the two tripods B is in a closing state to the door opening, the long right-angle side of each tripod A is positioned on the same vertical line, and each tripod A and the corresponding tripod B form a rectangle.

As a further improvement of the technology, a ring groove is circumferentially formed on the inner wall of a round hole, which is rotatably matched with the inner shaft of the telescopic shaft, on the positioning seat; a positioning ring is fixedly arranged on the inner shaft of the telescopic shaft; the positioning ring rotates in the ring groove on the positioning seat. The matching of the ring groove and the positioning ring enables the telescopic shaft to only rotate relative to the positioning seat, and axial sliding relative to the positioning seat cannot occur.

As a further improvement of the technology, the telescopic shaft is vertically installed on the inner wall surface of the wall body through two fixed seats matched with the outer shaft bearings.

As a further improvement of the technology, a bevel gear B is arranged at the end of an inner shaft of the telescopic shaft and is meshed with a bevel gear A arranged on a shaft A; the outer shaft end of the telescopic shaft is provided with a bevel gear C, and the bevel gear C is meshed with a bevel gear D arranged on the shaft B.

As a further improvement of the technology, a bevel gear F and a straight gear A are coaxially arranged on the inner wall surface of the wall body, and the bevel gear F is meshed with a bevel gear E arranged on the outer shaft of the telescopic shaft; the straight gear A is meshed with a straight gear B arranged on the wall surface, and a crank is arranged on the straight gear B.

As a further improvement of the technology, when the door-closing mechanism is in a door-closing state, the opposite right-angle frames of the two tripods B are provided with through round holes; the bolt is inserted into the round hole, and the deformed door mechanism is locked by a padlock in the round hole at the lower end of the bolt.

As a further improvement of the technology, the tripod A and the tripod B are both covered with right-angled triangular iron sheets; the iron sheet is provided with a movable opening near the plug, so that the hands of an operator can stretch into the movable opening to plug and pull the plug and lock the lock conveniently.

As a further improvement of the present technology, the transmission ratio of the bevel gear a to the bevel gear B is 1:1, the transmission ratio of the bevel gear C to the bevel gear D is 1:1, when the telescopic shaft is ensured to rotate, the absolute value of the angular speed of the inner shaft of the telescopic shaft, which drives the shaft A to rotate through the bevel gear B and the bevel gear A, is equal to the absolute value of the angular speed of the outer shaft of the telescopic shaft, which drives the shaft B to rotate through the bevel gear C and the bevel gear D, so that the two tripods A rotate and swing at the same angular speed.

As a further improvement of the technology, the return spring is mounted at the upper end of the sliding block; the upper end of the reset spring is connected with the inner wall of the sliding chute B, and the other end of the reset spring is connected with the upper end surface of the sliding block; the return spring is always in a stretched state.

Compared with the traditional warehouse door, the deformable door mechanism has the advantages that in the opening or closing process, the movement space of the tripod A and the tripod B in the deformable door mechanism is smaller, so that the movement space of people nearby cannot be greatly occupied, the movement of people is facilitated, and the influence on the movement of people nearby caused by the fact that the traditional double-door occupies a larger space in the opening or closing process is avoided; compared with the traditional double-door, the double-door structure does not need to manufacture a door frame matched with the double-door structure for supporting, so that the process added by manufacturing the door frame is saved, the later maintenance and repair of the door frame caused by the existence of the door frame are avoided, and the double-door structure is lower in installation and maintenance cost. Compared with the traditional sliding door, the sliding door does not need to be provided with corresponding guide rails and rollers matched with the guide rails in a matching way; the replacement and maintenance of the abrasion track and the roller do not exist, and meanwhile, the phenomenon that a large amount of installation space is occupied due to the fact that the track is installed is avoided, and the installation and maintenance cost of the warehouse door is reduced. Compared with the existing similar warehouse door structure that the tripod A and the tripod B are isosceles right triangles, the tripod A and the tripod B in the warehouse door structure are non-isosceles right triangles; if the triangular supports A and B are isosceles right triangles, the height of the rectangle formed by the two triangular supports A and B is not changed when the door deforming mechanism is turned from a closed state to an open state; when the door is closed, the triangular support A and the triangular support B which are hinged with each other form a rectangle, and the vertical side length of the formed rectangle is larger than the horizontal side length of the formed rectangle; therefore, the transverse size of the doorway opened on the whole wall body is effectively reduced, the height of the doorway is relatively increased, and vehicles with large load heights can smoothly enter and exit; when the doorway is in a fully opened state, the height of a vertical side of a rectangle formed by the triangular supports A and the triangular supports B which are hinged with each other is larger than the width of a horizontal side of the rectangle; at the moment, the overall height of the door leaf formed by the two tripods A and the two tripods B in the door deforming mechanism is reduced, the width is increased, the gravity center height of the door leaf is effectively reduced, deformation and damage of a hinge structure between the door leaf and a door frame caused by the fact that the gravity center position is high when the door leaf is in an open state for a long time are avoided, the maintenance period of the door leaf is prolonged, and the use efficiency of the door leaf is improved. The present invention allows for full opening and full closing of the warehouse interior relative to existing similar warehouse door structures. In addition, in the process of opening the door from a closed state, the sliding block is reset downwards, the tripod A arranged on the shaft A moves downwards, and the overall gravity center height of the two tripods A and the two tripods B is gradually reduced, so that the sliding block drives the corresponding tripod A to move more easily through the shaft A, and further, a person can easily open the door-deforming mechanism by using smaller force in the door closing process; the invention has simple structure and better use effect.

Drawings

Fig. 1 is a front schematic view of a deformed door mechanism and a wall body.

Fig. 2 is a schematic diagram of the back of the deformed door mechanism and the wall body.

FIG. 3 is a schematic cross-sectional view of the wall, square column, slide block, shaft A, tripod A, bevel gear B and telescopic shaft.

FIG. 4 is a schematic cross-sectional view of the wall, square column, shaft B, tripod A, bevel gear D, bevel gear C, telescopic shaft, bevel gear E, bevel gear F and spur gear A.

FIG. 5 is a schematic cross-sectional view of the telescopic shaft, bevel gear E, bevel gear F, spur gear A, spur gear B and crank.

Fig. 6 is a schematic cross-sectional view of a wall structure.

Fig. 7 is a schematic view of the distribution of two deforming door mechanisms.

Figure 8 is a schematic cross-sectional view of a deformed door mechanism and its components.

Figure 9 is a schematic cross-sectional view of a square post.

FIG. 10 is a cross-sectional view of the square column, the slide block, the shaft A, the tripod A, the bevel gear B, the telescopic shaft and the positioning shaft.

Fig. 11 is a schematic view of the positioning seat, the telescopic shaft, the bevel gear B and the positioning ring.

Fig. 12 is a schematic sectional view of the tripod a, the tripod B, the universal hinge structure and the plug fitting.

Fig. 13 is a schematic diagram of the combination of the tripod a, the tripod B, the universal hinge structure and the plug.

Fig. 14 is a simplified schematic diagram of a deformed state of the deformed gate mechanism.

The name of the winning symbol: 1. a wall body; 2. mounting grooves; 3. a chute A; 4. a shaft hole; 5. a deformable door mechanism; 6. a square column; 7. a chute B; 8. a chute C; 10. an axis A; 11. a bevel gear A; 12. a bevel gear B; 13. positioning seats; 14. a telescopic shaft; 15. a bevel gear C; 16. a bevel gear E; 17. a bevel gear D; 18. a shaft B; 19. a bevel gear F; 20. a straight gear A; 21. a spur gear B; 22. a crank; 23. a return spring; 24. a tripod A; 25. a tripod B; 26. iron sheet; 27. a fixed seat; 28. a ring groove; 29. a positioning ring; 30. a universal hinge structure; 31. plugging; 32. and an axis C.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, 2 and 7, it comprises two door-deforming mechanisms 5, wherein the two door-deforming mechanisms 5 as double-opening door leaves are symmetrically installed at the door opening on the wall body 1.

As shown in fig. 7, 8 and 12, the above-mentioned deformation door mechanism 5 includes a square upright 6, a shaft a10, a positioning seat 13, a telescopic shaft 14, a shaft B18, a return spring 23, a tripod a24, a tripod B25 and a universal hinge structure 30, wherein as shown in fig. 3, 4 and 6, the square upright 6 is vertically installed in the installation groove 2 on the door side of the wall 1; as shown in fig. 3, 9 and 10, a sliding block is vertically slid in a sliding groove B7 in the upper section of the square upright post 6, and a return spring 23 for returning the sliding block is mounted on the sliding block; as shown in fig. 3, two ends of the shaft a10 engaged with the slider bearing respectively pass through the sliding groove C8 on the side of the square upright 6 and vertically slide in the sliding groove A3 on the wall 1 along with the slider, and the shaft a10 is perpendicular to the wall surface; as shown in fig. 4 and 8, two ends of the shaft B18 bearing-fitted with the lower end of the square upright 6 pass through the shaft hole 4 on the wall 1, and the shaft B18 is parallel to the shaft a 10; as shown in fig. 7 and 8, the right angles of two non-isosceles right-angle tripods a24 on the surface parallel to the wall surface are respectively fixedly connected with a shaft a10 and a shaft B18; as shown in fig. 1, 3 and 4, two tripods a24 swing on the outer wall surface of the wall body 1 around the central axes of a shaft a10 and a shaft B18 respectively; as shown in fig. 12, the hypotenuse frame of each tripod a24 is hinged by axis C32 to the hypotenuse frame of one non-isosceles right triangle tripod B25; the hypotenuse of tripod a24 is parallel to the hypotenuse of tripod B25 hinged thereto; as shown in fig. 12 and 13, the right angles of the two tripods B25 are connected by a universal hinge structure 30.

As shown in fig. 2 and 8, the manually driven telescopic shaft 14 vertically rotates on the inner wall surface of the wall body 1, and the inner shaft end of the telescopic shaft 14 is located at the upper end of the whole telescopic shaft 14; as shown in fig. 3 and 10, the inner shaft of the telescopic shaft 14 is in rotating fit with a positioning seat 13 fixedly arranged on the sliding block; as shown in fig. 2 and 8, the telescopic shaft 14 is in driving connection with the shaft a10 and the shaft B18.

As shown in fig. 1 and 7, when the door leaf formed by the two tripods a24 and the two tripods B25 is in a state of closing the door opening, the long right-angle side of each tripod a24 is located on the same vertical line, and each tripod a24 and the corresponding tripod B25 form a rectangle.

As shown in fig. 10 and 11, a circular groove 28 is circumferentially formed on an inner wall of the circular hole of the positioning seat 13, which is rotatably engaged with the inner shaft of the telescopic shaft 14; a positioning ring 29 is fixedly arranged on the inner shaft of the telescopic shaft 14; the positioning ring 29 rotates in the ring groove 28 of the positioning seat 13. The engagement of the annular groove 28 with the positioning ring 29 allows the telescopic shaft 14 to rotate only with respect to the positioning socket 13, without sliding axially with respect to the positioning socket 13.

As shown in fig. 2, the telescopic shaft 14 is vertically mounted on the inner wall surface of the wall 1 through two fixing seats 27 matched with the outer shaft bearings.

As shown in fig. 2, 3 and 10, a bevel gear B12 is mounted at the inner shaft end of the telescopic shaft 14, and a bevel gear B12 is meshed with a bevel gear a11 mounted on a shaft a 10; as shown in fig. 2 and 4, the outer axial end of the telescopic shaft 14 is provided with a bevel gear C15, which bevel gear C15 meshes with a bevel gear D17 mounted on a shaft B18.

As shown in fig. 4 and 5, a bevel gear F19 and a spur gear a20 are coaxially mounted on the inner wall surface of the wall body 1, and a bevel gear F19 is engaged with a bevel gear E16 mounted on the outer shaft of the telescopic shaft 14; the spur gear A20 is meshed with a spur gear B21 installed on the wall surface, and the crank 22 is installed on the spur gear B21.

As shown in fig. 12 and 13, when the door-deforming mechanism 5 is in a closed state, the opposite right-angled frames of the two tripods B25 are provided with through round holes; a plug 31 is inserted into the circular hole, and a padlock is locked in the circular hole at the lower end of the plug 31 to lock the deformed door mechanism 5.

As shown in fig. 1 and 7, the tripod a24 and the tripod B25 are both covered with a right-angled triangular iron sheet 26; the iron sheet 26 is provided with a movable opening near the plug 31, so that the operator can insert and pull the plug 31 and lock and unlock the lock conveniently.

As shown in fig. 10, the transmission ratio of the bevel gear a11 to the bevel gear B12 is 1: 1; as shown in FIG. 4, the gear ratio of the bevel gear C15 to the bevel gear D17 is 1:1, when the telescopic shaft 14 is ensured to rotate, the absolute value of the angular velocity of the shaft A10, which is driven by the inner shaft of the telescopic shaft 14 through the bevel gear B12 and the bevel gear A11, is equal to the absolute value of the angular velocity of the shaft B18, which is driven by the outer shaft of the telescopic shaft 14 through the bevel gear C15 and the bevel gear D17, so that the two tripods A24 rotate and swing at the same angular velocity.

As shown in fig. 3 and 8, the return spring 23 is mounted on the upper end of the slider; the upper end of the return spring 23 is connected with the inner wall of the sliding groove B7, and the other end of the return spring is connected with the upper end face of the sliding block; the return spring 23 is always in tension.

As shown in fig. 14, after the deformation gate mechanism 5 in the present invention is changed from the closed state to the open state, the vertical sides of the rectangle formed by the two tripods a24 and the two tripods B25 are reduced, and the lateral width dimension thereof is increased.

The universal hinge structure 30 of the invention can realize the relative motion of any relative angle between two tripods B25 which are hinged with each other; the universal hinge structure 30 is commercially available using the prior art.

The working process of the invention is as follows: in an initial state, the two deformation door mechanisms 5 are in a closed state to the door, and the height dimension of a rectangle formed by the two tripods A24 and the two tripods B25 in the deformation door mechanisms 5 is larger than the width dimension of the rectangle; the bolt 31 is inserted into round holes on two tripod B25 opposite to the right-angle side frame, a door lock is hung in the round hole at the lower end of the bolt 31, and the whole door deforming mechanism 5 is in a closed and locked state; the two ends of the shaft A10 are positioned at the top limit position of the chute C8, and the return spring 23 is in a stretching state; the telescopic shaft 14 is in an extended state.

When the warehouse door needs to be opened outside the warehouse, one door or two doors can be selected to be opened simultaneously according to the actual situation of passing people or objects; the operation flow of opening one door is exactly the same as the operation flow of opening two doors simultaneously, so the operation flow of only the right-side deformable door mechanism 5 is described as follows:

unlocking and picking up the lock and pulling out the plug 31 to unlock two tripods B25 in the door deforming mechanism 5; then one of the tripods B25 is pulled in the direction away from the wall surface, and the two tripods B25 perform inward folding movement around the universal hinge structure 30 along with the outward movement of the universal hinge structure 30; the distance between the upper end and the lower end of the two tripods B25 tends to be reduced, and the two tripods B25 respectively drive the tripods A24 hinged with the two tripods B25 to swing; the tripod A24 positioned above swings anticlockwise around the central axis of the shaft A10, and the tripod A24 positioned below swings clockwise around the central axis of the shaft B18; meanwhile, the two tripods B25 respectively bend and swing outwards around the corresponding shaft C32 relative to the corresponding tripod A24, and the two tripods B25 simultaneously swing towards the wall surface direction around the universal hinge structure 30 in opposite directions; when two tripods a24 swing to a certain angle around the shaft a10 and the shaft B18, respectively, two tripods B25 swing to the limit around the corresponding shaft C32 with respect to the corresponding tripod a24, respectively; under the continued action of the external force, the two tripods a24 continue to swing, and the two tripods B25 respectively swing back relative to the corresponding tripod a24 around the corresponding shaft C32.

When the two tripods A24 swing 90 degrees around the shaft A10 and the shaft B18 respectively, the two tripods B25 just swing back to the plane of the tripod A24 around the corresponding shaft C32 respectively; at the moment, the shorter right-angle side frames of the two tripods A24 are positioned on the same vertical line, and the longer right-angle side frames are respectively horizontally positioned at the uppermost end and the lowermost end of the door leaf; the longer right-angle side frames of the two tripods B25 are closely attached, and the shorter right-angle side frames are respectively vertically positioned at two sides of the door leaf; the two tripods a24 and the two tripods B25 form a rectangle whose height dimension becomes smaller and width dimension becomes larger.

In the process of opening the deformed door mechanism 5, the two tripods A24 drive the bevel gear A11 and the bevel gear D17 to rotate through the shaft A10 and the shaft B18 respectively, and the rotating directions of the bevel gear A11 and the bevel gear D17 are opposite; since the transmission ratio of the bevel gear a11 to the bevel gear B12 is 1:1 and the transmission ratio of the bevel gear C15 to the bevel gear D17 is 1:1, the inner shaft and the outer shaft of the telescopic shaft 14 rotate synchronously, the inner shaft of the telescopic shaft 14 rotates relative to the positioning socket 13, and the rotation angle of the telescopic shaft 14 is 90 degrees. Meanwhile, as the vertical height dimension of the rectangle formed by the two tripods a24 and the two tripods B25 decreases, the distance between the shaft a10 and the shaft B18 decreases, and the shaft a10 moves vertically downward along the chute C8 and approaches to the shaft B18; the shaft A10 drives the slide block and the bevel gear A11 to synchronously move downwards along the sliding chute B7; the slide block drives the inner shaft of the telescopic shaft 14 to contract downwards through the positioning seat 13 and the positioning ring 29; the inner shaft of the telescopic shaft 14 drives the bevel gear B12 to synchronously move downwards, and the return spring 23 is gradually further stretched and stores energy; during the period, the bevel gear A11 and the bevel gear B12 are in meshed transmission at all times; the rotating telescopic shaft 14 drives a bevel gear F19 to rotate through a bevel gear E16, a bevel gear F19 drives a spur gear B21 to rotate through a spur gear A20, and a spur gear B21 drives the crank 22 to circumferentially swing around the central axis of the shaft where the spur gear is located. After the door leaf of the deformable door mechanism 5 is opened, because the two tripods a24 and the two tripods B25 are in a vertical plane again, no artificial external force acts on the universal hinge structure 30 between the two tripods B25, and the return spring 23 which is further stretched cannot break the critical balance state, the opened deformable door mechanism 5 can always keep the opened state as long as no external force acts on the universal hinge structure 30.

When the deformable door mechanism 5 needs to be closed outside the warehouse, the universal hinge structure 30 is pulled again to move in the direction away from the wall surface; the process is the reverse operation of the opening process, and the operation flow is just opposite to the opening flow. When the deformed door mechanism 5 is fully closed, all components in the deformed door mechanism 5 are fully reset, and the resetting of the slider causes the return spring 23 to release a portion of the energy and resume its original state of tension. After the door leaf of the deformable door mechanism 5 is closed, because the two tripods a24 and the two tripods B25 are in a vertical plane again, no artificial external force acts on the universal hinge structure 30 between the two tripods B25, and the return spring 23 which releases partial energy and restores to the initial state cannot break the critical balance state, so as long as no external force acts on the universal hinge structure 30, the closed deformable door mechanism 5 can always keep the closed state.

If the deformable door mechanism 5 needs to be opened from the warehouse, the tripod B25 is pushed outwards by hands to break the critical balance state of the rectangle formed by the two tripods A24 and the two tripods B25; then the crank 22 is shaken; the crank 22 drives the gear A to rotate through the gear B, the gear A drives the bevel gear E16 to rotate through the bevel gear F19, and the bevel gear E16 drives the bevel gear B12 and the bevel gear C15 to rotate through the telescopic shaft 14; the bevel gear B12 drives the corresponding tripod A24 to swing around the central axis of the shaft A10 through the bevel gear A11 and the shaft A10, the bevel gear C15 drives the corresponding tripod A24 to swing around the central axis of the shaft B18 through the bevel gear D17 and the shaft B18, and the two tripods A24 swing around the shaft A10 and the shaft B18 in opposite directions; the two tripods B25 respectively bend outwards and swing around the corresponding shaft C32 relative to the corresponding tripod A24, and the two tripods B25 simultaneously swing towards the wall surface direction around the universal hinge structure 30 in opposite directions; when two tripods a24 swing to a certain angle around the shaft a10 and the shaft B18, respectively, two tripods B25 swing to the limit around the corresponding shaft C32 with respect to the corresponding tripod a24, respectively; under the continued action of the external force, the two tripods a24 continue to swing, and the two tripods B25 respectively swing back relative to the corresponding tripod a24 around the corresponding shaft C32. When the two tripods A24 swing 90 degrees around the shaft A10 and the shaft B18 respectively, the two tripods B25 just swing back to the plane of the tripod A24 around the corresponding shaft C32 respectively; at the moment, the shorter right-angle side frames of the two tripods A24 are positioned on the same vertical line, and the longer right-angle side frames are respectively horizontally positioned at the uppermost end and the lowermost end of the door leaf; the longer right-angle side frames of the two tripods B25 are closely attached, and the shorter right-angle side frames are respectively vertically positioned at two sides of the door leaf; the two tripods a24 and the two tripods B25 form a rectangle whose height dimension becomes smaller and width dimension becomes larger.

During the opening of the deformable door mechanism 5 from inside the warehouse, as the vertical height dimension of the rectangle formed by the two tripods a24 and the two tripods B25 decreases, the distance between the shaft a10 and the shaft B18 decreases, and the shaft a10 moves vertically downward along the chute C8 and approaches the shaft B18; the shaft A10 drives the slide block and the bevel gear A11 to synchronously move downwards along the sliding chute B7; the slide block drives the inner shaft of the telescopic shaft 14 to contract downwards through the positioning seat 13 and the positioning ring 29; the inner shaft of the telescopic shaft 14 drives the bevel gear B12 to synchronously move downwards, and the return spring 23 is gradually further stretched and stores energy; during this time, bevel gear A11 and bevel gear B12 are in meshing transmission at all times.

When the fully opened deformed door mechanism 5 needs to be closed from the warehouse, a tripod B25 is pulled slightly by hand in a direction perpendicular to the wall surface, so that the critical balance of the rectangle formed by the two tripods A24 and the two tripods B25 is broken; then the crank 22 is shaken in the reverse direction, and the crank 22 drives the spur gear B21 to rotate in the reverse direction; the counter-rotating spur gear B21 is counter-rotated by a series of drive shafts a10 and B18; the two tripods A24 are driven by the shaft A10 and the shaft B18 which rotate reversely to swing back and forth respectively, and the two tripods A24 drive the two tripods B25 to move towards the initial state; in the process of resetting the tripod A24 and the tripod B25, the tripod A24 drives the shaft A10 to reset vertically upwards, the shaft A10 drives the sliding block to reset, and the reset spring 23 contracts to release energy; meanwhile, the slider drives the inner shaft of the telescopic shaft 14 rotating relative to the positioning seat 13 to perform extension motion relative to the outer axial initial state of the telescopic shaft 14 through the positioning seat 13. When the two tripods a24 return to the initial state, all the components in the deforming door mechanism 5 are reset, at which time the rocking of the crank 22 is stopped.

In conclusion, the invention has the beneficial effects that: in the process of opening or closing the deformable door mechanism 5, the movement space of the tripod A24 and the tripod B25 in the deformable door mechanism 5 is smaller, so that the movement space of people nearby cannot be greatly occupied, the movement of people is facilitated, and the influence on the movement of people nearby caused by the fact that the traditional double-door occupies a larger space in the opening or closing process is avoided; compared with the traditional double-door, the double-door structure does not need to manufacture a door frame matched with the double-door structure for supporting, so that the process added by manufacturing the door frame is saved, the later maintenance and repair of the door frame caused by the existence of the door frame are avoided, and the double-door structure is lower in installation and maintenance cost. Compared with the traditional sliding door, the sliding door does not need to be provided with corresponding guide rails and rollers matched with the guide rails in a matching way; the replacement and maintenance of the abrasion track and the roller do not exist, and meanwhile, the phenomenon that a large amount of installation space is occupied due to the fact that the track is installed is avoided, and the installation and maintenance cost of the warehouse door is reduced. Compared with the existing similar warehouse door structure that the tripod A24 and the tripod B25 are isosceles right triangles, the tripod A24 and the tripod B25 are non-isosceles right triangles; if the tripod a24 and the tripod B25 are isosceles right triangles, the height of the rectangle formed by the two tripods a24 and the two tripods B25 is not changed when the transformable door mechanism 5 is turned from the closed state to the open state; when the door is closed, the tripod A24 and the tripod B25 which are hinged with each other form a rectangle, and the vertical side length of the formed rectangle is larger than the horizontal side length of the formed rectangle; therefore, the transverse size of the doorway opened on the whole wall body 1 is effectively reduced, the height of the doorway is relatively increased, and vehicles with large load heights can smoothly enter and exit; when the doorway is in a fully opened state, the height of a vertical side of a rectangle formed by the tripod A24 and the tripod B25 which are hinged with each other is larger than the width of a horizontal side of the rectangle; at this moment, the height of the door leaf formed by the two tripods a24 and the two tripods B25 in the door deforming mechanism 5 is wholly reduced and the width is increased, so that the gravity center height of the door leaf is effectively reduced, deformation and damage of a hinge structure between the door leaf and a door frame caused by high gravity center position when the door leaf is in an open state for a long time are avoided, the maintenance period of the door leaf is prolonged, and the use efficiency of the door leaf is improved. The present invention allows for full opening and full closing of the warehouse interior relative to existing similar warehouse door structures. In addition, in the process of opening the door from the closed state, the sliding block is reset downwards, the tripod A24 arranged on the shaft A10 moves downwards, the overall gravity center height of the two tripods A24 and the two tripods B25 is gradually reduced, so that the sliding block drives the corresponding tripod A24 to move through the shaft A10 with less labor, and further, a person can easily open the door-deforming mechanism 5 with less force in the door closing process.

Claims

1. A space-saving door for a warehouse, comprising: the double-door-opening door comprises two deformed door mechanisms, wherein the two deformed door mechanisms serving as double-door-opening door leaves are symmetrically arranged at the door openings on a wall body;

the deformation door mechanism comprises a square upright post, a shaft A, a positioning seat, a telescopic shaft, a shaft B, a return spring, a tripod A, a tripod B and a universal hinge structure, wherein the square upright post is vertically arranged in an installation groove on the side of a wall door; a sliding block is vertically slid in the sliding groove B in the upper section of the square upright post, and a return spring for returning the sliding block is arranged on the sliding block; two ends of a shaft A matched with the sliding block bearing respectively penetrate through a sliding groove C on the side surface of the square upright post and vertically slide in a sliding groove A on the wall along with the sliding block, and the shaft A is perpendicular to the wall surface; two ends of a shaft B matched with the bearing at the lower end of the square upright post penetrate through the shaft holes in the wall body, and the shaft B is parallel to the shaft A; the right angles of two non-isosceles right-angle triangular supports A of which the surfaces are parallel to the wall surface are fixedly connected with a shaft A and a shaft B respectively, and the two triangular supports A swing on the outer wall surface of the wall body around the central axes of the shaft A and the shaft B respectively; the bevel edge frame of each tripod A is hinged with the bevel edge frame of a non-isosceles right-angle tripod B through a shaft C; the bevel edge of the tripod A is parallel to the bevel edge of the tripod B hinged with the tripod A; the right angles of the two tripods B are connected through a universal hinge structure;

the manually driven telescopic shaft vertically rotates on the inner wall surface of the wall body, and the end of an inner shaft of the telescopic shaft is positioned at the upper end of the whole telescopic shaft; the inner shaft of the telescopic shaft is in rotating fit with a positioning seat fixedly arranged on the sliding block; the telescopic shaft is in transmission connection with the shaft A and the shaft B;

2. A space saving door for a warehouse, according to claim 1, wherein: a circular groove is circumferentially formed on the inner wall of the circular hole, which is rotatably matched with the inner shaft of the telescopic shaft, on the positioning seat; a positioning ring is fixedly arranged on the inner shaft of the telescopic shaft; the positioning ring rotates in the ring groove on the positioning seat.

3. A space saving door for a warehouse, according to claim 1, wherein: the telescopic shaft is vertically installed on the inner wall surface of the wall body through two fixing seats matched with the outer shaft bearings.

4. A space saving door for a warehouse, according to claim 1, wherein: a bevel gear B is arranged at the end of an inner shaft of the telescopic shaft and meshed with a bevel gear A arranged on the shaft A; the outer shaft end of the telescopic shaft is provided with a bevel gear C, and the bevel gear C is meshed with a bevel gear D arranged on the shaft B.

5. A space saving door for a warehouse, according to claim 1, wherein: a bevel gear F and a straight gear A are coaxially arranged on the inner wall surface of the wall body, and the bevel gear F is meshed with a bevel gear E arranged on an outer shaft of the telescopic shaft; the straight gear A is meshed with a straight gear B arranged on the wall surface, and a crank is arranged on the straight gear B.

6. A space saving door for a warehouse, according to claim 1, wherein: when the door deforming mechanism is in a door closing state, through round holes are formed in opposite right-angle frames of the two tripods B; the bolt is inserted into the round hole, and the deformed door mechanism is locked by a padlock in the round hole at the lower end of the bolt.

7. A space saving door for use in a warehouse as claimed in claim 1 or 6, wherein: the triangular supports A and B are covered with right-angled triangular iron sheets; the iron sheet is provided with a movable opening near the plug.

8. A space saving door for a warehouse, according to claim 4, wherein: the transmission ratio of the bevel gear A to the bevel gear B is 1:1, the transmission ratio of the bevel gear C to the bevel gear D is 1: 1.

9. a space saving door for a warehouse, according to claim 1, wherein: the reset spring is arranged at the upper end of the sliding block; the upper end of the reset spring is connected with the inner wall of the sliding chute B, and the other end of the reset spring is connected with the upper end surface of the sliding block; the return spring is always in a stretched state.