Disclosure of Invention
In order to solve the problems, the invention aims to provide the expansion plate for the expansion door, and the two groups of expansion plates can rotate to be mutually attached, so that the occupied area of the expansion door during shrinkage can be reduced to the greatest extent; the occupied volume of the telescopic part is small, the transportation is convenient, and the transportation cost is saved.
The invention adopts the following detailed technical scheme: the expansion board for the expansion door comprises expansion boards, and the cross section shapes of the expansion boards are the same; the two ends of the expansion plate are respectively fixedly provided with a first connecting cylinder and a second connecting cylinder, the axis of the first connecting cylinder is coincided with the top end surface of the expansion plate, and the axis of the second connecting cylinder is coincided with the bottom end surface of the expansion plate.
Preferably, the group of expansion plates are one expansion plate, two sides of the first connecting cylinder are provided with notches, and the middle part of the second connecting cylinder is provided with notches.
The strength of the telescoping portion can be ensured.
As one implementation mode, the first connecting cylinder and the second connecting cylinder are internally provided with inner limiting blocks with circular sector sections; the hinge shaft is provided with a limiting groove with a circular sector-shaped section, and the inner limiting block is positioned in the limiting groove.
The expansion plate is convenient to process and stack, so that the expansion plate is convenient to transport.
Preferably, the expansion plate further comprises an inner limiting cylinder, the inner limiting cylinder is provided with a combination body extending outwards, the limiting block is fixedly arranged in the inner limiting cylinder, the first connecting cylinder and the second connecting cylinder are provided with mounting sliding grooves extending inwards, and the combination body is respectively embedded into the mounting sliding grooves.
The production difficulty of the expansion plate and the inner limiting cylinder is low, and the cost can be further reduced.
As an implementation mode, the expansion plate is fixedly provided with an outer limiting block.
The outer limiting block props against the expansion plates to enable the two groups of expansion plates of each expansion part to be bent upwards.
Further, the expansion plate is provided with a pressure relief hole penetrating through.
Can improve the wind resistance and the water resistance of the telescopic door.
In order to solve the above problems, another object of the present invention is to provide a method for manufacturing a retractable door retractable plate, which can be continuously performed on a conventional profile cutter, thereby improving production efficiency and reducing cost.
The invention adopts the following detailed technical scheme: the manufacturing method of the expansion plate for the expansion door comprises the following steps of cutting the expansion plate profile along a cutting line to form the expansion plate.
The manufacturing method of the expansion board for the expansion door further comprises the step of punching holes along the material reduction area on the expansion board section bar to form notches at two sides of the first connecting cylinder and notches or pressure relief holes in the middle of the second connecting cylinder.
The manufacturing method of the expansion board for the expansion door further comprises the step of adjusting the slitting width B to form expansion boards with different slitting widths B.
The slitting width B of the expansion plate can be conveniently adjusted according to the requirement, and the cost is reduced.
Detailed Description
The technical scheme of the invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 14, the retractable door of the present invention includes a transmission system part 1, a door body 2, and a retractable part 3. In general, the transmission system part 1 is provided with a driving wheel 11, the driving wheel 11 is connected with a power device (not shown in the drawing) which is arranged in the transmission system part 1, the power device is usually a gear motor, and the like, so that the driving wheel 11 is electrified to rotate, the driving wheel 11 can drive the transmission system part 1 to move, and the transmission system part 1 drives the door body 2 to move, so that the expansion door expands and contracts. Typically, the number of the transmission system parts 1 is one, and the number of the door bodies 2 is one or more.
The telescopic part 3 comprises two groups of telescopic plates 4 hinged with each other, and the other ends of the telescopic plates 4 (namely, the other ends of the telescopic plates 4 hinged with each other) are respectively hinged with the transmission system part 1 or the door body 2 and the door body 2, so that the transmission system part 1 or the door body 2 is connected with the door body 2 through the telescopic part 3. The axes of the hinged positions of the two groups of mutually hinged telescopic plates 4 and the axes of the hinged positions of the other ends of the telescopic plates 4 and the transmission system part 1 or the door body 2 and the door body 2 respectively can be vertically or horizontally arranged.
In the expansion and contraction process of the expansion and contraction door, the other end of the expansion plate 4 (namely, the other end of the mutually hinged ends of the expansion plate 4) is hinged with the transmission system part 1 or the door body 2 and the door body 2 respectively, the other end of the expansion plate 4 cannot slide up and down along the sliding groove of the transmission system part 1 or the door body 2, so that the other end of the expansion plate 4 cannot abut against the sliding groove inner wall of the transmission system part 1 or the door body 2 to slide, noise is generated, and in addition, compared with the other end of the expansion plate 4 which is clamped in the sliding groove of the transmission system part 1 or the door body 2 and is easy to be clamped (the clamping is caused by dust and the like entering the sliding groove of the transmission system part 1 or the door body 2), the other end of the expansion plate 4 is hinged with the transmission system part 1 or the door body 2 and the door body 2 respectively, the reliability is higher, and the clamping is difficult.
Preferably, the telescopic door of the invention also comprises a hinge shaft 5 which is horizontally arranged and a mounting shaft 6 which is horizontally arranged, wherein the two ends of the telescopic plate 4 are respectively fixedly provided with a first connecting cylinder 41 and a second connecting cylinder 42; the hinge shaft 5 passes through the first connecting cylinder 41 and the second connecting cylinder 42, the hinge shaft 5 passes through the first connecting cylinder 41 of one expansion plate 4 and the second connecting cylinder 42 of the other expansion plate 4, so that the two groups of expansion plates 4 are hinged to each other, the mounting shaft 6 is connected with the transmission system part 1 or the door body 2, and the mounting shaft 6 passes through the first connecting cylinder 41 or the second connecting cylinder 42, respectively, so that the other end of the expansion plate 4, namely, the other end of the mutually hinged end of the expansion plate 4 is hinged to the transmission system part 1 or the door body 2, respectively. In the process of expanding and contracting the telescopic door, the hinge shaft 5 moves up and down, so that the shaft centers of the hinged positions of the two groups of mutually hinged telescopic plates 4 and the other end of the telescopic plate 4 are respectively in vertical arrangement with the shaft centers of the hinged positions of the transmission system part 1, the door body 2 and the door body 2, and the width of the telescopic door is exceeded, thereby being beneficial to reducing the occupied space of the telescopic door.
Typically, the mounting shaft 6 is threaded through the door body 2 with a nut, such that the mounting shaft 6 is coupled to the door body 2; the door body 2 is provided with an operation opening 21 which is opposite to the installation shaft 6, so that the nut can be conveniently rotated, and the shaft 6 is installed. In general, both sides of the door body 2 are detachably provided with decorative covers 22 covering the operation ports 21 [ detachable by means of snap-in grooves, but also by means of other means ].
Preferably, the group of expansion plates 4 is one expansion plate 4, two sides of the first connecting cylinder 41 are provided with notches (not shown in the drawing), the middle part of the second connecting cylinder 42 is provided with notches (not shown in the drawing), and the first connecting cylinder 41 is positioned at the notch of the middle part of the second connecting cylinder 42. The strength of the expansion plate 4 is high, and the stress of the expansion plate 4 is uniform, so that the strength of the expansion part 3 can be ensured.
When the group of expansion plates 4 is one expansion plate 4, the expansion plates 4 are integral and are not easy to bend [ along the direction in the plate surface of the expansion plates 4 ], in general, the plate surface width [ width in plane view ] of the expansion plates 4 is larger than the plate surface length [ length in plane view ] of the expansion plates 4, so that the expansion plates 4 are further not easy to bend [ along the direction in the plate surface of the expansion plates 4 ]. Because the expansion plate 4 is not easy to bend [ along the direction in the plate surface of the expansion plate 4 ] when the transmission system part 1 drives the door body 2 to move, even if adverse factors such as uneven ground exist, the transmission system part 1 and the door body 2 can keep moving linearly under the limitation of the expansion plate 4, the movement of the transmission system part 1 and the door body 2 cannot deviate from the straight line, and the service life of the expansion door can be ensured.
As still another embodiment [ third embodiment ], fig. 14 to 16; the group of expansion plates 4 is two or more than two expansion plates 4, and the two groups of expansion plates 4 are articulated in a dislocation manner [ one expansion plate 4 of one group of expansion plates 4, one expansion plate 4 of the other group of expansion plates 4, one expansion plate 4 of one group of expansion plates 4, and the like ]. The consumable of expansion plate 4 can be reduced, lower cost can also make the strong wind pass pressure release hole 44 easily, reduce the effort of strong wind to expansion plate 4, can also reduce expansion plate 4 and go up rainwater etc. [ form the space between the expansion plate 4 ], thereby can reduce choke power, the waterproof nature of expansion gate.
In this embodiment [ third embodiment ], the expansion plate 4 further includes an inner limiting cylinder 47, the inner limiting cylinder 47 is provided with a combination 471 extending outwardly, the limiting block 431 is fixedly provided in the inner limiting cylinder 47, the first connecting cylinder 41 and the second connecting cylinder 42 are each provided with an installation chute 48 extending inwardly, and the combination 471 is respectively embedded in the installation chute 48. Generally, the number of the installation sliding grooves 48 is equal to that of the installation sliding grooves 48, and the installation sliding grooves 48 are uniformly distributed around the axis of the inner limit cylinder 47. The sections of the first connecting cylinder 41 and the second connecting cylinder 42 have no hollow hole structure, a core pulling mechanism is not needed when the expansion plate 4 and the limiting cylinder 47 are produced, the production difficulty of the expansion plate 4 and the inner limiting cylinder 47 is low, and the cost can be further reduced.
In general, the number of the expansion and contraction parts 3 is two [ the expansion and contraction parts 3 located on the same horizontal plane are one row of expansion and contraction parts 3] or more than two rows. To increase the blocking density of the expansion door [ front view of the expansion door when being unfolded ], the size of the area divided by the expansion part 3, the transmission system part 1, the door body 2, the density frame 7 or the density frame 71 is smaller, the blocking density is higher ], and the strength is higher.
Further, the expansion plates 4 are provided with a limiting device 43, so that when the expansion door is unfolded, the two groups of expansion plates 4 of each expansion part 3 are bent and arranged [ i.e. the included angle between the two groups of expansion plates 4 is larger than zero degrees and smaller than one hundred eighty degrees ]. When the telescopic door is contracted, the acting force acting on the telescopic plate 4 cannot penetrate through the axle center of the hinge shaft 5, so that the hinge shaft 5 cannot move downwards, and the telescopic door can be ensured to be contracted smoothly, and the reliability is higher.
Further, the telescopic door of the invention further comprises a density frame 7, when the telescopic door is unfolded, the two groups of telescopic plates 4 of each telescopic part 3 are upwards bent, and the density frame 7 is hinged with the hinge shaft 5 respectively [ the hinge is realized in a mode that the hinge shaft 5 is inserted into the through hole ]. The blocking density of the telescopic door can be improved, and meanwhile, when the telescopic door is contracted, the hinge shaft 5 drives the density frame 7 to move upwards, so that the density frame 7 cannot move downwards to prop against the ground, the telescopic door can be ensured to be contracted smoothly, and the reliability is improved.
In general, the retractable door of the present invention may further include a densified frame 71, wherein the densified frame 71 is hinged to the retractable panel 4 respectively [ conventional hinging manner ]. To further increase the blocking density of the retractable door as desired.
As a preferred embodiment, the first connecting cylinder 41 and the second connecting cylinder 42 are respectively provided with an inner limiting block 431 with a circular sector-shaped section; the hinge shaft 5 is provided with a limiting groove 51 with a circular sector-shaped cross section, and the inner limiting block 431 is positioned in the limiting groove 51. The inner limiting block 431 props against the limiting groove 51 to enable the two groups of expansion plates 4 of each expansion part 3 to be bent upwards; in this embodiment, the expansion plate 4 is convenient to process [ the shapes of the sections of the expansion plate 4 are the same and can be made of the expansion plate profile 9 ], and the expansion plate 4 is not provided with extra protrusions, so that the expansion plate 4 is convenient to stack and the expansion plate 4 is convenient to transport.
The expansion plate 4 for the expansion door has the same cross-sectional shape of the expansion plate 4.
Further, the first connecting cylinder 41 and the second connecting cylinder 42 are fixedly arranged at two ends of the expansion plate 4 respectively, the axis of the first connecting cylinder 41 is overlapped with the top end surface of the expansion plate 4, and the axis of the second connecting cylinder 42 is overlapped with the bottom end surface of the expansion plate 4. When the telescopic door is contracted, the two groups of telescopic plates 4 can rotate to be mutually attached, so that the occupied area of the telescopic door when contracted can be reduced to the greatest extent; in addition, after the hinge shaft 5 passes through the first connecting cylinder 41 and the second connecting cylinder 42, the two groups of expansion plates 4 can be rotated to be mutually attached, and at the moment, the occupied volume of the expansion part 3 is smaller, so that the transportation is convenient, and the transportation cost is saved.
Preferably, the group of expansion plates 4 is one expansion plate 4, two sides of the first connecting cylinder 41 are provided with notches (not shown in the drawing), and the middle part of the second connecting cylinder 42 is provided with notches (not shown in the drawing). The strength of the expansion plate 4 is high, and the stress of the expansion plate 4 is uniform, so that the strength of the expansion part 3 can be ensured.
Further, the expansion plate 4 is provided with a pressure relief hole 44 therethrough. The strong wind easily passes through the pressure release holes 44, so that the acting force of the strong wind on the expansion plate 4 can be reduced, and the rainwater and the like on the expansion plate 4 can be reduced, thereby improving the wind resistance and the water resistance of the expansion door.
As another embodiment [ second embodiment, fourth embodiment ], as shown in fig. 7, 20, and 21, the expansion plate 4 is fixedly provided with an outer stopper 432. The outer limiting block 432 abuts against the expansion plates 4 to enable the two groups of expansion plates 4 of each expansion part 3 to be bent upwards.
The manufacturing method of the expansion board 4 for the expansion door comprises the following steps,
The expansion plate profile 9 is cut along the parting line 91 to form the expansion plate 4. Typically, the length of the expansion plate profile 9 is longer, and this step is carried out continuously on a conventional profile cutter (not shown in the figures), which is advantageous for improving the production efficiency and reducing the costs.
The expansion plate profile 9 is punched along the material reduction region 92 to form notches on both sides of the first connecting cylinder 41, and notches or pressure relief holes 44 in the middle of the second connecting cylinder 42.
And adjusting the slitting width B to form the expansion plate 4 with different slitting widths B. The adjustment of the slitting width B can be achieved by adjusting the position of the cutter of the profile cutter (not shown in the figures). The expansion part width A of the expansion part 3 required in the market is different in specification; the slitting width B of the expansion plate 4 can be conveniently adjusted according to the requirement, which is beneficial to reducing the cost.
As shown in fig. 17 to 19, the door body 2 is provided with a running wheel 8, and the running wheel 8 includes at least a running wheel shaft 81 and a running wheel hub 82, and the running wheel shaft 81 is connected to the door body 2. For example, the travelling wheel shaft 81 passes through the door body 2 to connect the travelling wheel shaft 81 with the door body 2 [ the conventional travelling wheel shaft 81 adopts a structure with an axle rubber chain ], so that the cost can be reduced.
The running wheel 8 further comprises an inner lining member 83 made of hard plastic, such as ABS plastic, PPS plastic or the like, the inner lining member 83 being embedded in the running wheel hub 82, and the running wheel shaft 81 passing through the inner lining member 83. The lining member 83 does not rust, does not cause the running wheel 8 to seize, and is low in cost compared with the use of bearings.
Further, the running wheel 8 further comprises a spacer 84, wherein the spacer 84 is fixedly connected to one end of the running wheel shaft 81 [ e.g. by means of a buckle, or by inserting a pin 88 into a pin hole provided in the running wheel shaft 81, etc. ]. The running wheel hub 82 can be prevented from moving along the running wheel shaft 81 to come off.
Preferably, the inner cavities of the lining member 83 and the running wheel hub 82 are both in a truncated cone shape, i.e. the cross section of the lining member 83 and the cross section of the running wheel hub 82 are both trapezoidal, and the base angle of the trapezoid is typically 85-90 degrees. The liner 83 is easily inserted into the interior cavity of the running gear hub 82 for pre-assembly.
Further, a positioning groove 822 is formed in the traveling wheel hub 82, and a positioning ring 832 is arranged on the lining member 83 in an extending manner; the positioning ring 832 is located in the positioning slot 822 and abuts against the cross section of the positioning slot 822. The wheel shaft 81 is prevented from being pulled, the gasket 84 abuts against the lining member 83 to enable the lining member 83 to excessively move, the inner cavity of the lining member 83 is reduced, and the wheel shaft 81 is prevented from being abutted against to rotate to compensate or be blocked.
Further, the running wheel hub 82 is provided with anti-slip grooves 821, the inner lining member 83 is provided with anti-slip protrusions 831, and the anti-slip protrusions 831 are respectively fitted into the anti-slip grooves 821. To prevent slippage between the inner lining member 83 and the running gear hub 82 (i.e., the inner lining member 83 rotates relative to the running gear hub 82), causing wear of the inner lining member 83, and then the inner lining member 83 falls off from the running gear hub 82, causing damage to the running gear 8. In general, the number of the anti-slip protrusions 831 is two or more, and is uniformly distributed around the axial center of the lining member 83, so as to improve the anti-slip effect.
Further, the running wheel hub 82 is wrapped with a running wheel outer sleeve 85 made of an elastic material [ such as rubber, etc. ]; to absorb vibration generated when the traveling wheel cover 85 moves, to have strong friction with the ground, to prevent traveling and ground slipping, to reduce noise, and the like.
Further, the traveling wheel hubs 82 are uniformly and fixedly provided with anti-falling protruding points 823 around the axle center of the traveling wheel hubs 82; to prevent slipping between the wheel cover 85 and the wheel hub 82 and also to prevent the wheel cover 85 from falling off the wheel hub 82.
Typically, the running wheel 8 further comprises a running wheel cover 86, the running wheel cover 86 covering the inner cavity of the running wheel hub 82 and being detachably connected to the running wheel hub 82 [ by means of a snap-in-slot ]. It is to be understood that the terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the scope of the invention.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, but any modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.