CN212685083U - Portable cloth device that tightens - Google Patents

Portable cloth device that tightens Download PDF

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Publication number
CN212685083U
CN212685083U CN202020767676.4U CN202020767676U CN212685083U CN 212685083 U CN212685083 U CN 212685083U CN 202020767676 U CN202020767676 U CN 202020767676U CN 212685083 U CN212685083 U CN 212685083U
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China
Prior art keywords
panel
bottom plate
plate
middle plate
cloth
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CN202020767676.4U
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Chinese (zh)
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贺晓秦
李广兴
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Changsha Huaqin High New Technology Co ltd
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Changsha Huaqin High New Technology Co ltd
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Abstract

The utility model discloses a portable tightening distributing device, which comprises at least two frame units which can be spliced end to form a closed frame; each frame unit comprises a hinge shaft, a panel, a middle plate and a bottom plate, wherein the panel, the middle plate and the bottom plate are hinged and stacked on one side; when the panel, the middle plate and the bottom plate are hinged and stacked, the structure on the top plate forms an integrated device for clamping, tightening and locking cloth; the stacking and matching of the panel and the middle plate can be realized to form a structure for clamping cloth, the cloth rotates around the hinge shaft, and the cloth is sequentially and integrally clamped, tightened and locked between the panel and the middle plate and between the middle plate and the bottom plate in the stacking and matching processes with the bottom plate. The portable multifunctional electric water heater is used for solving the problems of difficulty in operation, large size, non-portability and the like in the prior art, is convenient to operate, is environment-friendly, can be repeatedly used, and is detachable and portable.

Description

Portable cloth device that tightens
Technical Field
The utility model relates to an art designer, embroidery apparatus field specifically are a portable cloth device that tightens.
Background
At present, a canvas frame, a tightening embroidery ring for embroidery and the like generally adopt a wood forming frame, drawing paper, canvas or embroidery cloth needs to be laid on one surface of the frame when binding, nailing is carried out on the side surface or the back surface of the frame, and the canvas or the embroidery cloth can be in a tightening state after a plurality of edges are matched, so that the canvas frame has the following defects:
1. the operation of professional personnel is needed, and self-binding is difficult;
2. because the number of nails is large and the nails are not easy to remove, the wooden frames can be used only once, which causes resource waste;
3. the volume is large, the carrying is inconvenient, and the storage space is large;
4. the size is fixed and can not be flexibly adjusted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a portable distributing device that tightens for bind among the overcoming prior art and be difficult to the operation, inconvenient defect such as carry, resource-wasting, realize the cheapness and the portability of binding the operation through the equipment of a plurality of standard cells.
In order to achieve the purpose, the utility model provides a portable tightening distributing device, which comprises a closed frame formed by splicing at least two frame units which can be spliced and disassembled end to end; each frame unit comprises a cloth clamping, tightening and locking integrated device; the cloth clamping, tightening and locking integrated device comprises a hinge shaft, and a bottom plate, a middle plate and a panel which are sequentially stacked and one side of which is hinged on the hinge shaft;
the panel and the middle plate are superposed and matched together to form a cloth clamping structure or/and an adjustable cloth locking structure; the cloth clamping structure formed by overlapping and matching the panel and the middle plate is overlapped and matched with the bottom plate to form a cloth tightening and locking structure; the cloth clamping, tightening and locking integrated device realizes the sequential clamping, tightening and locking of the cloth between the panel and the middle plate and between the middle plate and the bottom plate.
Preferably, the cloth clamping structure comprises an inclined buckle structure, a magnet attraction structure or a cylindrical one-way friction locking structure which is arranged between the panel and the middle plate and is formed when the panel and the middle plate are superposed and matched with each other.
Preferably, the cloth tensioning structure comprises an integral structure formed when the panel and the middle plate are overlapped and matched, and the integral structure can rotate around a hinge shaft relative to the bottom plate to tension the cloth; the locking structure comprises an integral structure formed when the panel is superposed and matched with the middle plate, and an inclined buckle structure, a bolt structure, a magnet attraction structure, a friction locking structure, an elastic locking structure or a cam locking structure formed when the panel is superposed and matched with the bottom plate.
Preferably, the panel is concave and forms a closed accommodating space with the bottom plate when being overlapped with the bottom plate; when the middle plate is superposed with the bottom plate and the face plate, the middle plate is positioned in the accommodating space and one side, which is far away from the hinge shaft, is matched with the face plate, and the bottom plate, the middle plate and the face plate are superposed and locked through the locking structure so as to press canvas clamped between the face plate and the middle plate;
the locking structure comprises a pressing structure and a locking structure;
the compressing structure comprises a plurality of shaft sleeves, wherein the shaft sleeves are respectively arranged on one sides of the bottom plate, the middle plate and the panel, and the shaft sleeves are sleeved on the hinge shafts in a crossing manner;
the bottom plate shaft sleeve is eccentric; the middle plate is provided with a through hole which is matched with the eccentric bottom plate shaft sleeve, and when the middle plate and the bottom plate are superposed, the middle plate is positioned in the accommodating space and is pushed to move to the other side of the panel so as to compress canvas;
the locking structure is arranged between the panel shaft sleeve and the bottom plate shaft sleeve and is matched with the panel shaft sleeve and the bottom plate shaft sleeve;
the bottom plate shaft sleeve is provided with an eccentric bulge on the combination surface of the bottom plate and the middle plate, and a first step surface is formed on the outer side of the bottom plate shaft sleeve;
the cross section of the eccentric bulge is fan-shaped, and the central angle is 60-90 degrees;
the bottom plate is provided with a second step surface which is positioned in a turning mode on one side close to the hinge shaft, and the first step surface and the second step surface are respectively positioned on two sides of the hinge shaft.
Preferably, a third step surface matched with the second step surface is arranged on one side, close to the hinge shaft, of the panel, and when the panel is in a 180-degree state relative to the bottom plate, the third step surface is completely matched with the second step surface and limits the turnover angle of the panel to be increased continuously.
Preferably, the locking structure comprises an eccentric profile provided on the panel bushing and a mating surface provided on the base plate;
the eccentric molded surface is provided with a thrust surface at one side close to the concave structure of the panel; the matching surface comprises a first matching surface arranged at a position close to the panel shaft sleeve and a second matching surface arranged at a position close to the second step surface;
the first matching surface is matched with the eccentric profile surface, and the second matching surface is matched with the thrust surface.
Preferably, the central angle of the eccentric profile is 180 °, the first matching surface is a concave arc-shaped surface, the central angle is 90 °, and the second matching surface is a vertical plane and is located below the first matching surface.
Preferably, the inner side surface of the panel, which is far away from one side of the hinge shaft, is in a wedge shape and inclines towards the concave structure; the side surface of the middle plate far away from the hinge shaft is matched with the wedge-shaped surface of the panel.
Preferably, the inner side surface of the panel, which is far away from one side of the hinge shaft, is arc-shaped and protrudes inwards the concave structure; the side surface of the middle plate far away from the hinge shaft is matched with the arc-shaped surface of the panel.
Preferably, the complete closed frame formed by splicing the frame units is square, the frame units are trapezoidal, one side close to the hinge shaft is a long side, and one side far away from the hinge shaft is a short side;
the frame unit is characterized by further comprising an adjusting unit with the same structure as the frame unit, wherein the adjusting unit is in a parallelogram shape, and two edges between the hinged edge and the parallel edge are matched with the inclined edge of the trapezoid of the frame unit.
The utility model provides a portable cloth device that tightens, at first form complete frame with a plurality of frame cell end to end connection cooperation, then place whole frame bottom plate on the canvas of waiting to bind, all outwards overturn and open panel and intermediate lamella, the edge of canvas is rolled over in the panel and is kept away from one side back of hinge, place the canvas edge in the spill structure of panel through the intermediate lamella, again fold the canvas, panel and intermediate lamella to bottom plate department together, when the three boards superpose together, on the one hand through locking structure (for example the eccentric structure of bottom plate axle sleeve cooperates with the through hole of intermediate lamella) make the intermediate lamella remove and extrude the canvas between intermediate lamella and panel, on the other hand, panel (axle sleeve) and bottom plate (axle sleeve) lock panel and bottom plate at the superpose state through locking structure; the operation is simple, and the specialty is not needed; can be repeatedly used, is environment-friendly and saves energy; the unit structures are uniform, interchangeability is realized, assembling and splicing can be carried out according to the required size, the occupied space is small after disassembly, and the carrying and the containing are convenient.
Drawings
Fig. 1a is an assembly schematic view of an opened state of a portable cloth tensioning device according to an embodiment of the present invention;
fig. 1b is an assembly schematic view of a portable cloth tightening device in a pressing state according to an embodiment of the present invention;
fig. 2 is a schematic view of an assembly of the portable tightening material distribution device according to an embodiment of the present invention;
fig. 3a is a schematic cross-sectional view of a frame unit of a portable cloth tensioning device according to a second embodiment of the present invention, when the frame unit is opened to 180 °;
fig. 3b is a schematic cross-sectional view of a second frame unit opened to 180 ° according to a second embodiment of the present invention;
fig. 3c is a schematic cross-sectional view of the second embodiment of the present invention, when the frame unit is opened to 180 °;
fig. 4 is a schematic cross-sectional view of the frame unit folded to 0 ° according to the second embodiment of the present invention;
fig. 5 is a schematic view of an opened state of the portable tightening material distribution device provided in the second embodiment of the present invention;
fig. 6 is a partially enlarged schematic view of a locking unit in the portable cloth tightening device according to the third embodiment of the present invention;
FIG. 7 is a cross-sectional view of the locking unit of FIG. 6 in a locked condition;
fig. 8 is a cross-sectional view of the locking unit of fig. 6 in a thickness direction of the base plate along a plane parallel to the base plate in a locked state;
fig. 9 is a schematic partial enlarged view of a locking unit in a frame unit of a portable cloth tensioning device according to a fourth embodiment of the present invention;
FIG. 10 is a cross-sectional view of the locking unit of FIG. 9 in a locked condition;
fig. 11 is a schematic structural view of a frame unit in a portable cloth stretching device according to a fourth embodiment of the present invention;
FIG. 12 is a first schematic view illustrating the assembly of two adjacent frame units in FIG. 11;
fig. 13 is a second assembly view of two adjacent frame units in fig. 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Example one
Referring to fig. 1a, 1b and 2, an embodiment of the present invention provides a portable cloth tensioning device, which includes a closed frame formed by splicing at least two frame units 10 that can be spliced and disassembled end to end; each frame unit 10 comprises a cloth clamping, tightening and locking integrated device; the cloth clamping, tightening and locking integrated device comprises a hinge shaft 11, and a bottom plate 12, a middle plate 13 and a panel 14 which are sequentially stacked and hinged to the hinge shaft 11 at one side;
the panel 14 and the middle plate 13 form a cloth clamping structure or/and an adjustable cloth locking structure when being superposed and matched together; the cloth clamping structure formed by overlapping and matching the panel 14 and the middle plate 13 is overlapped and matched with the bottom plate 12 to form a cloth tightening and locking structure; the cloth clamping, tightening and locking integrated device realizes the sequential clamping, tightening and locking of the cloth between the panel 14 and the middle plate 13 and between the middle plate 13 and the bottom plate 12.
In the portable tightening cloth device provided by the embodiment of the utility model, when the panel 14, the middle plate 13 and the bottom plate 12 are hinged and stacked, the structure above the panel forms an integrated device for clamping, tightening and locking cloth; the stacking and matching of the panel 14 and the middle plate 13 can be realized to form a structure for clamping cloth, the structure rotates around the hinge shaft 11, and the cloth is sequentially and integrally clamped, tightened and locked between the panel 14 and the middle plate 13 and between the middle plate 13 and the bottom plate 12 in the stacking and matching processes with the bottom plate 12. The portable multifunctional electric water heater is used for solving the problems of difficulty in operation, large size, non-portability and the like in the prior art, is convenient to operate, is environment-friendly, can be repeatedly used, and is detachable and portable.
Preferably, the cloth clamping structure comprises an inclined buckle structure, a magnet attraction structure or a cylindrical one-way friction locking structure which is arranged between the panel and the middle plate and is formed when the panel and the middle plate are superposed and matched with each other.
Preferably, the cloth tensioning structure comprises an integral structure formed when the panel and the middle plate are overlapped and matched, and the integral structure can rotate around a hinge shaft relative to the bottom plate to tension the cloth; the locking structure comprises an integral structure formed when the panel is superposed and matched with the middle plate, and an inclined buckle structure, a bolt structure, a magnet attraction structure, a friction locking structure, an elastic locking structure or a cam locking structure formed when the panel is superposed and matched with the bottom plate.
Example two
As shown in fig. 3a, 3b, 3c, 4 and 5, the present invention provides a portable cloth tightening device, which comprises at least two frame units 10 that can be detachably spliced end to form a complete closed frame; each of the frame units 10 includes a hinge shaft 11, and a bottom plate 12, an intermediate plate 13 and a face plate 14 which are sequentially stacked and one side of which is hinged to the hinge shaft 11; as a first preferred embodiment of the first embodiment, the panel 14 is concave, and forms a closed accommodating space 15 with the bottom plate 12 when being stacked with the bottom plate 12; when the middle plate 13 is overlapped with the bottom plate 12 and the face plate 14, the middle plate 13 is positioned in the accommodating space 15 and one side far away from the hinge shaft 11 is matched with the face plate 14, and the bottom plate 12, the middle plate 13 and the face plate 14 are overlapped and locked through a locking structure so as to press canvas or cloth clamped between the face plate 14 and the middle plate 13.
The utility model provides a portable cloth device that tightens, at first form complete frame with a plurality of frame cell end to end connection cooperation, then place whole frame bottom plate on the canvas of waiting to bind, all outwards overturn and open panel and intermediate lamella, the edge of canvas is rolled over in the panel and is kept away from one side back of hinge, place the canvas edge in the spill structure of panel through the intermediate lamella, again fold the canvas, panel and intermediate lamella to bottom plate department together, when the three boards superpose together, on the one hand through locking structure (for example the eccentric structure of bottom plate axle sleeve cooperates with the through hole of intermediate lamella) make the intermediate lamella remove and extrude the canvas between intermediate lamella and panel, on the other hand, panel (axle sleeve) and bottom plate (axle sleeve) lock panel and bottom plate at the superpose state through locking structure; the operation is simple, and the specialty is not needed; can be repeatedly used, is environment-friendly and saves energy; the unit structures are uniform, interchangeability is realized, assembling and splicing can be carried out according to the required size, the occupied space is small after disassembly, and the carrying and the containing are convenient.
The locking structure comprises a pressing structure and a locking structure, the pressing structure is used for enabling the three plates to be in a superposed state and cannot be separated under the action of external force in a locking state, the middle plate 13 is located in the accommodating space 15, one side of the middle plate, which is far away from the hinge shaft 11, is in pressing fit with the panel 14, and the edge of the canvas is tightened; the locking structure is used for keeping the three plates in a stacked state, so that the middle plate 13 is kept pressed between the stacked contact surfaces of the bottom plate 12 and the face plate 14, and the edge of the canvas is accommodated and pressed.
In the above scheme, the detachable splicing structure between the frame units 10 can be realized by specific structures such as a pin, a screw, a dovetail groove butt joint, and the like; the locking structure can be directly locked through a plug and other structures, and can also be locked through the attraction of a magnet structure, for example, magnets are respectively embedded in the middle plate 13 and the bottom plate 12 in the embodiment, and the middle plate 13, the bottom plate 12 and the face plate 14 are attracted and locked together through two magnets; the pressing structure can specifically realize the pushing of the middle plate through a cam and other structures so as to realize the clamping of the drawing board positioned in the gap between the panel and the edge of the middle plate.
As a preferred embodiment of the present scheme, one side of each of the bottom plate 12, the middle plate 13 and the face plate 14 is provided with at least two bottom plate shaft sleeves 2a, middle plate shaft sleeves 3a and face plate shaft sleeves 4a correspondingly, and all the shaft sleeves are sleeved on the hinge shaft 11 in a crossed manner; one end of the bottom plate 12 is provided with an inserting tenon 2b, and the other end of the bottom plate is provided with a slot 2c which can be matched with the inserting tenon 2b in an inserting manner; the bottom plate shaft sleeve 2a is eccentric; the middle plate 13 is provided with a through hole 3b matched with the eccentric bottom plate shaft sleeve 2a, and when the middle plate and the bottom plate are overlapped, the middle plate is positioned in the accommodating space 15 and pushes the middle plate 13 to move towards the other side of the panel so as to press canvas; the panel shaft sleeve 4a and the bottom plate shaft sleeve 2a are provided with locking structures which are matched with each other.
The frame in this embodiment may be polygonal or curved, and this embodiment and the drawings illustrate a square frame as an example. The insertion falcon 2b may be shaped as a trapezoid, a semicircle or an irregular shape as shown. When in use, the inserting tenons 2b at the head and the tail of the plurality of frame units 10 are firstly inserted and matched with the inserting grooves 2c to form a complete frame, the entire frame base is then placed over the canvas to be bound (not shown), the front and middle panels 14, 13 are turned outwardly (see figure 5), the edge of the canvas is folded over the side of the panel remote from the hinge, the edge of the canvas is placed in the concave structure of the panel 14 through the middle plate 13, then the canvas, the panel 14 and the middle plate 13 are folded towards the bottom plate 12, when the three plates are tightly attached together (see figure 4), on one hand, the eccentric structure of the bottom plate shaft sleeve 2a is matched with the through hole 3b of the middle plate 13, so that the middle plate 13 moves and squeezes the canvas between the middle plate 13 and the panel 14, and on the other hand, the panel shaft sleeve 4a and the bottom plate shaft sleeve 2a lock the panel 14 and the bottom plate 12 in an overlapping state through a locking structure; the operation is simple, and the specialty is not needed; can be repeatedly used, is environment-friendly and saves energy; the frame units 10 are uniform in structural standard, beneficial to large-scale production, high in interchangeability, capable of being assembled and spliced according to required sizes, small in occupied space after being disassembled, and convenient to carry and accommodate.
Preferably, the complete closed frame formed by splicing the frame units 10 is square, and the frame units are angular; the frame unit structure of the automobile seat further comprises an adjusting unit 20 which is the same as the frame unit structure, and the adjusting unit 20 is rectangular. The sizes of the picture frames are flexibly adjusted through splicing of the inserting falcon and the inserting groove.
Preferably, the base plate boss 2a has an eccentric protrusion 2d on a coupling surface of the base plate 12 and the intermediate plate 13, and a first step surface 2e is formed outside the boss of the base plate 12. The eccentric protrusion 2d may be in particular an arc or a smooth curve, such as an elliptical arc or a spiral, etc.
Preferably, the cross section of the eccentric protrusion 2d is fan-shaped, and the central angle is 60-90 degrees. Preferably 90 deg., see fig. 3a, when the middle plate 13 rotates 180 deg. to 90 deg. relative to the bottom plate 12, the through hole 3b has a gap with the bottom plate sleeve 2a so as to adjust the gap between the middle plate 13 and the face plate 14 to adjust the canvas, when the middle plate 13 rotates 90 deg. to 0 deg. relative to the bottom plate 12, the through hole 3b cooperates with the eccentric protrusion 2d to gradually push the middle plate 13 to the side away from the hinge shaft 11 to achieve the compression of the canvas, see fig. 4.
Preferably, the bottom plate 12 has a second step surface 2f positioned in an overturned manner at a side close to the hinge shaft, and the first step surface 2e and the second step surface 2f are respectively located at two sides of the hinge shaft 11. A third step surface 4f matched with the second step surface 2f is arranged on one side, close to the hinge shaft 11, of the panel 14, and when the panel 14 is in a 180-degree state relative to the bottom plate 12, the third step surface 4f is completely matched with the second step surface 2f and the turnover angle of the panel 14 is limited to be increased continuously. Referring to fig. 3a, 3b and 3c, during the turning-up operation, the third step surface 4f is matched with the second step surface 2f for limiting, so that the operation of binding the canvas is facilitated.
As a preferred embodiment, referring to fig. 3a, the inner side 4c of the panel 14 on the side away from the hinge shaft 11 is wedge-shaped and inclined inwardly of the concave structure; the side 3c of the intermediate plate 13 remote from the hinge shaft 11 coincides with the wedge surface of the panel 14. The wedge-shaped surfaces are matched to prevent the canvas from being separated from the concave structure.
As a second preferred embodiment, the inner side surface of the panel, which is far away from the hinge shaft, is arc-shaped (not shown in the figure) and protrudes inwards to the concave structure; the side surface of the middle plate far away from the hinge shaft is matched with the arc-shaped surface of the panel. The function is the same as the first preferred embodiment.
Preferably, referring to fig. 3b, 4, said locking structure comprises an eccentric profile 4g provided on said panel bushing 4a and a mating surface provided on said bottom plate 12; the eccentric profile 4g is provided with a thrust surface 4h at one side close to the concave structure of the panel 14; the mating surfaces include a first mating surface 2g disposed at a position close to the panel bushing 4a and a second mating surface 2h disposed at a position close to the second step surface 2 f; the first matching surface 2g is matched with the eccentric molded surface 4g, and the second matching surface 2h is matched with the thrust surface 4 h.
Referring to fig. 3a, when the intermediate plate 13 rotates at [180 ° to 0 ° relative to the bottom plate 12, the eccentric profile 4g is engaged with the first engaging surface 2g, and when the intermediate plate 13 rotates at 0 ° relative to the bottom plate 12, the thrust surface 4h rotates to a vertical direction to be engaged with the second engaging surface 2h, so as to lock the bottom plate 12 and the face plate 14, see fig. 4. When the panel 12 is opened, the panel is rotated in the opposite direction, and the panel is opened, so that the thrust surface 4h is separated from the second matching surface 2h, and unlocking is realized.
Preferably, the central angle of the eccentric profile 4g is 180 °, the first mating surface 2g is a concave arc surface and the central angle is 90 °, and the second mating surface 2h is a vertical plane and is located below the first mating surface 2 g. The angle can realize locking and unlocking at a specific position, and the operation is convenient.
EXAMPLE III
Referring to fig. 6-8, the difference from the second embodiment is that the panel 14 may be an integral panel, or may be a plurality of units independent of each other, the locking structure does not use the thrust surface 4h to cooperate with the second mating surface 2h to lock the bottom plate 12 and the panel 14, but uses a plug structure to lock, and the locking structure includes a slot 131 disposed on the middle plate 13, a slot or through hole 121 disposed on the bottom plate 12, and a plug 122 disposed on an end surface of the bottom plate far from the pin 11; the edge of the canvas is attached to the concave surface of the panel 12 and is wrapped outwards along one end, far away from the pin shaft 11, of the panel 14, the middle plate 13 rotates towards the concave surface of the panel 14, so that the canvas is clamped between the middle plate 12 and the panel 14, the middle plate, far away from the hinge shaft 11, rotates towards the position of the bottom plate 12, along with the close of the middle plate, the middle plate is pushed by a cam, so that the side surface 3c of the middle plate, far away from the hinge shaft 11, approaches to the inner side surface 4c, far away from one side of the hinge shaft 11, of the panel 14, so that the canvas is pressed tightly, when the middle plate 13 is completely attached to the bottom plate 12, the slot 131 completely extends into the through hole 121, the plug 122 completely extends into the slot 131 to be matched with the slot 131 through the operation, the slot 131 can be in a hook shape in fig. 8 or in a slot hole shape, and the like, and the.
Example four
The difference from the third embodiment is that the locking structure adopts a plug-in structure, the frame units 10 are spliced by using a plug pin, specifically referring to fig. 9-13, in fig. 11, a single frame unit 10 is in a right-angle shape, the end of one of the two spliced ends is provided with a plug pin 110 and a first notch 130, when the plug pin 110 is inserted into the jack 120 at the end of the other frame unit, the first notch 130 is matched with a second notch 140, the operations are repeated to realize the plug-in combination of all the frame single pieces, and the state after the plug-in of the four right-angle frame units 10 is completed is referred to fig. 1 a; in order to realize the deformation of the frame size to be suitable for various scenes, a linear frame unit can be inserted between any adjacent right-angle frame units 10, and particularly, the frame is shown in fig. 2; the locking structure comprises an elastic part 141 arranged on one side of the panel 14 far away from the hinge shaft and a thrust part 123 fixed on one side of the bottom plate 12 far away from the hinge shaft, a joint surface 140 between the elastic part 141 and the thrust part 123 is an inclined surface and gradually inclines to one side close to the hinge shaft 11 from bottom to top in the thickness direction of the bottom plate 12, the elastic part 141 can generate elastic deformation to the direction of the hinge shaft 11 when the panel 14 rotates to the position of the bottom plate 12 to approach, so that interference fit between the two joint surfaces 140 is realized, locking is realized through friction force between the joint surfaces 140, and the locking state is shown in fig. 10.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (10)

1. A portable cloth tightening device is characterized by comprising a closed frame formed by splicing at least two frame units which can be spliced and disassembled end to end; each frame unit comprises a cloth clamping, tightening and locking integrated device; the cloth clamping, tightening and locking integrated device comprises a hinge shaft, and a bottom plate, a middle plate and a panel which are sequentially stacked and one side of which is hinged on the hinge shaft;
the panel and the middle plate are superposed and matched together to form a cloth clamping structure or/and an adjustable cloth locking structure; the cloth clamping structure formed by overlapping and matching the panel and the middle plate is overlapped and matched with the bottom plate to form a cloth tightening and locking structure; the cloth clamping, tightening and locking integrated device realizes the sequential clamping, tightening and locking of the cloth between the panel and the middle plate and between the middle plate and the bottom plate.
2. The portable cloth tensioning device according to claim 1, wherein the cloth clamping structure comprises a latch structure, a magnet attraction structure or a cylindrical one-way friction locking structure formed when the panel and the middle plate are overlapped and matched.
3. The portable cloth tensioning device according to claim 2, wherein the cloth tensioning structure comprises a unitary structure formed when the face plate and the intermediate plate are superposed and engaged, and is rotatable about the hinge axis relative to the base plate to tension the cloth; the locking structure comprises an integral structure formed when the panel is superposed and matched with the middle plate, and an inclined buckle structure, a bolt structure, a magnet attraction structure, a friction locking structure, an elastic locking structure or a cam locking structure formed when the panel is superposed and matched with the bottom plate.
4. The portable taut fabric device according to claim 3, wherein said panels are concave and define a closed receiving space therebetween when stacked together with said base; when the middle plate is superposed with the bottom plate and the face plate, the middle plate is positioned in the accommodating space and one side, which is far away from the hinge shaft, is matched with the face plate, and the bottom plate, the middle plate and the face plate are superposed and locked through the locking structure so as to press canvas clamped between the face plate and the middle plate;
the locking structure comprises a pressing structure and a locking structure;
the compressing structure comprises a plurality of shaft sleeves, wherein the shaft sleeves are respectively arranged on one sides of the bottom plate, the middle plate and the panel, and the shaft sleeves are sleeved on the hinge shafts in a crossing manner;
the bottom plate shaft sleeve is eccentric; the middle plate is provided with a through hole which is matched with the eccentric bottom plate shaft sleeve, and when the middle plate and the bottom plate are superposed, the middle plate is positioned in the accommodating space and is pushed to move to the other side of the panel so as to compress canvas;
the locking structure is arranged between the panel shaft sleeve and the bottom plate shaft sleeve and is matched with the panel shaft sleeve and the bottom plate shaft sleeve;
the bottom plate shaft sleeve is provided with an eccentric bulge on the combination surface of the bottom plate and the middle plate, and a first step surface is formed on the outer side of the bottom plate shaft sleeve;
the cross section of the eccentric bulge is fan-shaped, and the central angle is 60-90 degrees;
the bottom plate is provided with a second step surface which is positioned in a turning mode on one side close to the hinge shaft, and the first step surface and the second step surface are respectively positioned on two sides of the hinge shaft.
5. The portable taut fabric device according to claim 4, wherein a third step surface cooperating with said second step surface is provided on a side of said panel adjacent to said hinge axis, said third step surface cooperating with said second step surface completely when said panel is in a 180 ° position with respect to said base panel and limiting further increase in the flip angle of said panel.
6. The portable taut fabric device according to claim 5, wherein said locking structure includes an eccentric profile provided on said faceplate boss and a mating surface provided on said base plate;
the eccentric molded surface is provided with a thrust surface at one side close to the concave structure of the panel; the matching surface comprises a first matching surface arranged at a position close to the panel shaft sleeve and a second matching surface arranged at a position close to the second step surface;
the first matching surface is matched with the eccentric profile surface, and the second matching surface is matched with the thrust surface.
7. The portable taut fabric device according to claim 6, wherein said eccentric profile has a central angle of 180 °, said first mating surface being a concave arcuate surface and having a central angle of 90 °, and said second mating surface being a vertical plane and being located below said first mating surface.
8. The portable taut fabric device according to claim 1, wherein an inner side of said panel on a side thereof remote from said hinge axis is wedge-shaped and inclined inwardly of said concave structure; the side surface of the middle plate far away from the hinge shaft is matched with the wedge-shaped surface of the panel.
9. The portable cloth tensioning device according to claim 1, wherein the inner side surface of the panel on the side away from the hinge shaft is arc-shaped and protrudes inward of the concave structure; the side surface of the middle plate far away from the hinge shaft is matched with the arc-shaped surface of the panel.
10. The portable tightening cloth device according to any one of claims 1 to 9, wherein the frame units are square in shape after being spliced to form a complete closed frame, and the frame units are angular;
the frame unit structure is the same as that of the frame unit structure, and the adjusting unit is rectangular.
CN202020767676.4U 2020-05-11 2020-05-11 Portable cloth device that tightens Active CN212685083U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469591A (en) * 2020-05-11 2020-07-31 长沙华秦高新科技有限公司 Portable cloth device that tightens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469591A (en) * 2020-05-11 2020-07-31 长沙华秦高新科技有限公司 Portable cloth device that tightens
CN111469591B (en) * 2020-05-11 2024-09-10 长沙华秦高新科技有限公司 Portable tightening cloth device

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