CN215109908U - Quick expansion device - Google Patents

Abstract

The utility model belongs to the technical field of fixing devices, in particular to a rapid expansion device, which comprises a lining component, a fixed plate, a first movable plate and a second movable plate, wherein the first movable plate and the second movable plate are rotatably connected to form a combined plate, the combined plate has the same shape and size as the fixed plate, one side of the fixed plate is connected with a sharp corner plate and two inverted hook plates, the sharp corner plate is positioned in the middle of the edge of the fixed plate, the two inverted hook plates are respectively arranged on two sides of the sharp corner plate, the barbs of the two barb plates are bent towards the direction of the sharp angle plate, the two side edges of the fixed plate are obliquely arranged, the fixed plate and the combined plate are bent and rolled on the side surface of the lining component to form a cylinder shape, each barb plate is mutually clamped up and down in pairs, and the two sharp corner plates are respectively positioned between the two side edges of the fixed plate and the combined plate, and the distance between the rapid expansion device and the pipe wall is less than the dislocation stroke of the sharp corner plates after the fixed plate and the combined plate are transferred in opposite directions. Through the arrangement of the components, the rapid expansion device can be repeatedly recycled.

Description

Quick expansion device

Technical Field

The utility model belongs to the technical field of fixing device, especially, relate to a quick expansion device.

Background

The expansion sleeve is used for connecting, fixing and installing tubular objects, the tubular materials are connected by punching holes on the side face, welding or arranging a connecting piece to connect the two objects, the two objects are connected by punching holes, corresponding installing holes need to be punched on the side face, the two objects are connected by matching and assembling between a screw and a nut, welding needs to be carried out to cut out the shape which is matched with the connecting part on the other object, then the two objects are fixedly connected by welding, or the two objects are connected by arranging a connecting piece between the two objects, the expansion sleeve which is clamped in an opening at one end of the tubular materials is arranged at one end of the tubular materials in the prior art, the two objects are connected by the expansion sleeve, and the expansion sleeve in the prior art cannot be recycled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick expansion device aims at solving the unable recycling technical problem of quick expansion device among the prior art.

In order to achieve the above object, an embodiment of the present invention provides a rapid expansion device, which comprises a lining assembly, a fixed plate, a first movable plate and a second movable plate, wherein the first movable plate and the second movable plate are rotatably connected to form a combined plate, the combined plate has the same shape and size as the fixed plate, one side of the fixed plate is connected to a sharp corner plate and two inverted hook plates, the sharp corner plate is located at the middle position of the edge of the fixed plate, the two inverted hook plates are respectively disposed at two sides of the sharp corner plate, the inverted hooks of the two inverted hook plates are both bent towards the sharp corner plate, two side edges of the fixed plate are obliquely disposed, the fixed plate and the combined plate are both bent at the side of the lining assembly to form a cylindrical shape, each inverted hook plate is mutually clamped up and down, and the two sharp corner plates are respectively located between the fixed plate and the two side edges of the combined plate, the distance between the rapid expansion device and the pipe wall is smaller than the dislocation stroke of the sharp corner plate after the fixed plate and the combined plate are transferred in opposite directions.

Preferably, the two side edges of the fixed plate and the combined plate are both obliquely arranged, a gap between the two side edges of the fixed plate and the combined plate after being bent is conical, and the two sharp corner plates are respectively positioned in the two gaps.

Preferably, the two side edges of the fixing plate and the combination plate are respectively attached to the side edges of the two pointed angle plates.

Preferably, the two side edges of the sharp corner plate are provided with clamping grooves, and the two clamping grooves are respectively arranged close to the pointed end of the sharp corner plate.

Preferably, staggered bulges which are opposite to the clamping grooves are respectively arranged on the two side edges of the fixed plate and the combined plate.

Preferably, the two side edges of the sharp corner plate are both provided with dislocation grooves, and the dislocation grooves are positioned between the clamping grooves and the edges of the fixed plate.

Preferably, the top end of the sharp corner plate is processed in a straight angle mode.

Preferably, the inside lining subassembly includes locking screw and plastic part, the plastic part install after the book of bending the fixed plate with in the compoboard, just the both ends of plastic part all are provided with a plurality of tension grooves, behind the screw head radius of locking screw and the book of bending the fixed plate with the excircle radius of compoboard is the same.

Preferably, the plastic part includes a connecting section and two supporting sections that are penetrated through by a through hole, the two supporting sections are respectively installed at two ends of the connecting section, and the radius of the connecting section is smaller than the radius of the two supporting sections.

Preferably, a connection point of the first movable plate and the second movable plate is located on a symmetry axis of the assemblable plate.

The embodiment of the utility model provides an among the quick expansion device above-mentioned one or more technical scheme have one of following technological effect at least:

the utility model provides a quick expansion device is by the inside lining subassembly, the fixed plate, first fly leaf and second fly leaf equipment form, at the production stage fixed plate, first fly leaf and second fly leaf all adopt integrated into one piece, ensure the shape stability of whole part, and non-deformable, ensure simultaneously that the compoboard that first fly leaf and second fly leaf formed after the equipment is the same with the shape size of fixed plate, and connect with the rotation mode between first fly leaf and the second fly leaf, first fly leaf and second fly leaf can realize the rotation of certain angle under this connection, and this rotation connection is detachable, easy to assemble dismantlement.

The fixed plate and the assembled combination plate are provided with a sharp corner plate and two inverted hook plates on one side, the sharp corner plate is arranged in the middle of the side, the two inverted hook plates are respectively arranged on the side edge and positioned on two sides of the sharp corner plate, the inverted hooks of the two inverted hook plates are arranged in a bending mode towards the sharp corner plate, the finally formed fixed plate and the combination plate are bent to be cylindrical, the cylindrical fixed plate and the cylindrical combination plate are arranged in a vertically staggered mode, the sharp corner plate on the fixed plate is positioned between two closed sides of the combination plate, the sharp corner plate on the combination plate is positioned between the two closed sides of the fixed plate, the pointed end of the sharp corner plate is arranged upwards, the two inverted hook plates on the fixed plate and the two inverted hook plates on the combination plate are mutually clamped and arranged in a vertically opposite mode, and the combined fixed plate and the combination plate are prevented from being separated and falling easily.

The fixed plate and the compoboard enclose to close and install the side at inside lining subassembly, fixed plate and compoboard after this crimp of locking extrusion through inside lining subassembly move in opposite directions, thereby make the sharp scute above fixed plate and the compoboard take place the dislocation, then the butt increases the friction that whole quick expansion device removed in the installation pipe above the inside wall of installation pipe, when needs take out, only need two sharp scutes of the locking state of contact inside lining subassembly automatic recovery to the gap, alright take out quick expansion device, ensure simultaneously that the distance between quick expansion device and the installation pipe inner wall is less than two sharp scutes and compare in the dislocation stroke distance between fixed plate and the compoboard analysis, prevent that the gap is too big, can't realize contradicting between the inner wall with the installation pipe after the sharp scute dislocation. Through the arrangement of the components, the rapid expansion device can be repeatedly recycled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an effect diagram of a rapid expansion device according to an embodiment of the present invention.

Fig. 2 is an effect diagram of a liner assembly of a rapid expansion device according to an embodiment of the present invention.

Fig. 3 is an effect diagram of a bent and rolled fixing plate of a rapid expansion device according to an embodiment of the present invention.

Fig. 4 is an effect diagram of a rolled composite board of a rapid expansion device according to an embodiment of the present invention.

Fig. 5 is a plan view of an expanded fixation plate of a rapid expansion device according to an embodiment of the present invention.

Fig. 6 is a plan view of an expanded composite deck of a rapid expansion device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-lining component 11-locking screw 12-plastic part

20-fixed plate 21-sharp angle plate 22-inverted hook plate

30-combined board 31-first board 32-second board

121-connecting section 122-supporting section 211-clamping groove

212-dislocation groove 1221-tension groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in fig. 1-6, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 6, there is provided a rapid expansion device, including a lining assembly 10, a fixed plate 20, a first movable plate 31 and a second movable plate 32, the first movable plate 31 and the second movable plate 32 are rotatably connected to form a combined plate 30, the first movable plate 31 and the second movable plate 32 are detachably mounted between the two, and the combined plate 30 has the same shape and size as the fixed plate 20, the first movable plate 31 and the second movable plate 32 enable the combined plate 30 to be deformed in a movable degree, so as to facilitate assembly and disassembly between the bent fixed plate 20 and the bent combined plate 30, one side of the fixed plate 20 is connected to a sharp corner plate 21 and two inverted hook plates 22, the inverted edges of the two inverted hook plates 22 are bent, the sharp corner plate 21 is located at the middle position of the edge of the fixed plate 20, the two inverted hook plates 22 are respectively disposed at two sides of the sharp corner plate 21, the sharp corner plate 21 is located in the middle, the two inverted hook plates 22 are distributed at two sides, the fixed plate 20 and the combined plate 30 after being bent are assembled in a vertically staggered manner, the two sharp corner plates 21 are oppositely arranged and respectively located in opposite gaps, the inverted hooks of the two inverted hook plates 22 are bent towards the sharp corner plate 21, two sides of the fixed plate 20 are obliquely arranged, two sides of the fixed plate 20 respectively extend onto the two inverted hook plates 22, so that the two inverted hook plates 22 are smoothly connected with the two sides, the fixed plate 20 and the combined plate 30 are both bent and rolled on the outer side surface of the lining assembly 10 to form a cylinder, the bent fixed plate 20 and the combined plate 30 form a hollow cylinder to enclose the lining assembly 10, so that the lining assembly 10 can be freely installed and disassembled, each two inverted hook plates 22 are mutually clamped up and down, and the two inverted hook plates 22 which are mutually clamped with each other move relatively by taking the edge of one side of the bent as a sliding path, the two sharp corner plates 21 are respectively positioned between two side edges of the fixed plate 20 and the combined plate 30, the sharp corner plates 21 on the fixed plate 20 are positioned between two side edges of the combined plate 30 after being bent, the sharp corner plates 21 on the combined plate 30 are positioned between two side edges of the fixed plate 20 after being bent, the fixed plate 20 and the combined plate 30 are arranged in a staggered manner, so that the two sharp corner plates 21 can be respectively dislocated with the corresponding fixed plate 20 or the combined plate 30 after the fixed plate 20 and the combined plate 30 move towards each other, the two sharp corner plates 21 protrude out of the plane of the outer side surface of the fixed plate 20 or the combined plate 30, the distance between the rapid expansion device and the pipe wall is smaller than the dislocation stroke of the sharp corner plates 21 after the fixed plate 20 and the combined plate 30 are transferred towards each other, and the movement of the rapid expansion device can be limited by the dislocation of the two sharp corner plates 21 only if the distance between the rapid expansion device and the pipe wall on which the rapid expansion device is installed is smaller than the dislocation stroke distance of the two sharp corner plates 21, when the distance between the rapid expansion device and the pipe wall is greater than the dislocation stroke of the two acute angle plates 21, a certain distance still remains between the two acute angle plates 21 and the pipe wall after the two acute angle plates 21 are respectively overlapped with the outer side walls of the fixed plate 20 and the combined plate 30, so that the rapid expansion device continues to move, and the limitation on the movement cannot be realized.

The utility model provides a quick expansion device is by inside lining subassembly 10, fixed plate 20, first fly leaf 31 and second fly leaf 32 are assembled and are formed, fixed plate 20 at the production stage, first fly leaf 31 and second fly leaf 32 all adopt integrated into one piece, ensure the shape stability of whole part, and non-deformable, ensure simultaneously that the compoboard 30 that first fly leaf 31 and second fly leaf 32 assembled back formed is the same with fixed plate 20's shape size, and connect with the rotation mode between first fly leaf 31 and the second fly leaf 32, first fly leaf 31 and second fly leaf 32 can realize the rotation of certain angle under this connection, and this rotation connection is detachable, easy to assemble dismantlement.

One side of the fixed plate 20 and one side of the assembled combination plate 30 are provided with a sharp corner plate 21 and two inverted hook plates 22, the sharp corner plate 21 is arranged at the middle position of the side, and two inverted hook plates 22 are respectively arranged at the positions on the side edges at the two sides of the sharp corner plate 21, and the barbs of the two barb plates 22 are bent towards the sharp corner plate 21, the finally formed fixing plate 20 and combined plate 30 are bent into a cylindrical shape, the cylindrical fixing plate 20 and combined plate 30 are staggered up and down, the sharp corner plate 21 on the fixing plate 20 is positioned between two enclosed side edges of the combined plate 30, the sharp angle plate 21 on the combination plate 30 is positioned between the two enclosed sides of the fixing plate 20, the sharp end of the sharp angle plate 21 is arranged upwards, and the two inverted hook plates 22 on the fixed plate 20 and the two inverted hook plates 22 on the combined plate 30 are mutually clamped and arranged in a vertical opposite manner, so that the combined fixed plate 20 and the combined plate 30 are prevented from being easily separated and falling off.

The fixed plate 20 and the combined plate 30 are arranged on the side face of the lining component 10 in a surrounding mode, the fixed plate 20 and the combined plate 30 move oppositely after the bent and rolled through locking and extruding of the lining component 10, so that the sharp corner plates 21 on the fixed plate 20 and the combined plate 30 are staggered, then friction of the whole rapid expansion device moving in the installation pipe is increased on the inner side wall of the installation pipe in a butt joint mode, when the rapid expansion device needs to be taken out, only two sharp corner plates 21 in a locking state of contacting the lining component 10 automatically return to a gap, the rapid expansion device can be taken out, meanwhile, the distance between the rapid expansion device and the inner wall of the installation pipe is ensured to be smaller than the dislocation stroke distance between the two sharp corner plates 21 and the fixed plate 20 and the combined plate 30 in an analysis mode, the gap is prevented from being too large, and the fact that the sharp corner plates 21 cannot conflict with the inner wall of the installation pipe after being staggered. Through the arrangement of the components, the rapid expansion device can be repeatedly recycled.

In another embodiment of the present invention, as shown in fig. 1 and fig. 3 to 6, the fixing plate 20 and the two side edges of the composition plate 30 are all inclined, the inclined edges at the two sides of the fixing plate 20 and the composition plate 30 are inclined from bottom to top toward the sharp corner plate 21, the fixing plate 20 and the gap between the two side edges after the composition plate 30 is bent is a cone, the opening direction of the cone gap is toward one side of the sharp corner plate 21, and two the sharp corner plate 21 is respectively located in two gaps, and two sharp corner plates 21 are respectively located in two gaps, so that the dislocation movement relative to two side edges can be generated.

In another embodiment of the present invention, as shown in fig. 1 and 3 to 6, the fixing plate 20 and the combination plate 30 have two sides respectively attached to two sides of the corner plate 21, and the two side edges of the fixing plate 20 and the combination plate 30 have a certain inclination, and all incline from the lateral surface toward the medial surface, so that the connecting edge between the side and the lateral surface protrudes from the connecting edge between the lateral surface and the medial surface, and the two inclined edges of the corner plate 21 also respectively contact with the fixing plate 20 and the combination plate 30.

In another embodiment of the present invention, as shown in fig. 1 and fig. 3 to 6, the two side edges of the corner plate 21 are all provided with the joint groove 211, and the joint groove 211 is all towards the tip opening of the corner plate 21, an inner side surface of the joint groove 211 and the side edge of the corner plate 21 close to one section of the top end superposition, and another inner side surface of the joint groove 211 forms one section of the drawing-out section and is connected with one section of the side remaining of the corner plate 21, and two the joint groove 211 is respectively close to the tip setting of the corner plate 21, so that two joint grooves 211 close to the tip setting, and the first time blocking position of the return after the dislocation of the corner plate 21 is ensured to prevent from separating from two gaps.

In another embodiment of the present invention, as shown in fig. 1 and fig. 3 to 6, the fixing plate 20 and the two sides of the composition plate 30 are equally divided into two parts, respectively, and the staggered floor protrusion corresponding to the joint groove 211, the side overlapping of the side of the staggered floor protrusion and the side of the inverted hook plate 22, and the other side of the staggered floor protrusion forming the fault is connected to the remaining side, and the two parts are divided into two parts by the same side staggered floor.

In another embodiment of the present invention, as shown in fig. 1 and fig. 3 to 6, the two sides of the corner plate 21 are provided with the dislocation groove 212, and the dislocation groove 212 is located the joint groove 211 with between the edges of the fixing plate 20, the dislocation groove 212 is set up relatively to the side of the inverted hook edge of the inverted hook plate 22, so as to prevent the two opposite inverted hook plates 22 from moving and causing the position to be blocked and thus the position of the quick expansion device cannot be restricted.

In another embodiment of the present invention, as shown in fig. 1 and 3 to 6, the top flat angle of the corner plate 21 is processed to increase the length of the friction line between the dislocated corner plate and the pipe wall, so as to improve the efficiency of limiting the position movement.

In another embodiment of the present invention, as shown in fig. 1 to 2, the lining assembly 10 includes a locking screw 11 and a plastic part 12, the plastic part 12 has a certain soft property and can be more conveniently installed in a space formed by bending and rolling the fixing plate 20 and the composition plate 30, the plastic part 12 is installed in the fixing plate 20 and the composition plate 30 after being bent, the plastic part 12 supports the fixing plate 20 and the composition plate 30 by a reaction force, the fixing plate 20 and the composition plate 30 after being bent are prevented from being deformed, a plurality of tension grooves 1221 are respectively provided at both ends of the plastic part 12, both ends of the plastic part 12 have more flexible flexibility and are convenient to install by the arrangement of the tension grooves 1221, the radius of the screw head of the locking screw 11 is the same as the radius of the outer circle of the fixing plate 20 and the composition plate 30 after being bent, the screw head of the locking screw 11 presses the fixing plate 20 and the restriction plate to relatively move after connecting the screw hole, the displacement of the corner plate 21 on the two is realized.

In another embodiment of the present invention, as shown in fig. 1-2, the plastic part 12 includes a connecting section 121 and two supporting sections 122 that are penetrated through by the through hole, and the central axes of both the connecting section 121 and the two supporting sections 122 are located on the same axis, two the supporting sections 122 are respectively installed at both ends of the connecting section 121, and the radius of the connecting section 121 is smaller than two the radius of the supporting sections 122, and the radius of the connecting section 121 is smaller than the radius of the supporting sections 122, so as to reduce the friction between the inner side walls of the fixing plate 20 and the assembling plate 30 that are bent and rolled up during the mounting and dismounting process of the whole plastic part 12.

In another embodiment of the present invention, as shown in fig. 1, fig. 4 and fig. 6, the connection portion of the first movable plate 31 and the second movable plate 32 is located on the symmetry axis of the composite plate 30, the side surfaces where the first movable plate 31 and the second movable plate 32 are connected are respectively provided with an arc protrusion and an arc depression, and the arc protrusion and the arc depression on the first movable plate 31 and the second movable plate 32 are respectively connected in a staggered manner, and the rotation connection is realized through the clamping between the arc protrusion and the arc depression, so that the size of the gap between the two sides after the composite plate 30 is bent is adjusted to facilitate the installation and combination of the fixed plate 20 and the composite plate 30.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A rapid expansion device, characterized by: the rapid expansion device comprises a lining assembly, a fixed plate, a first movable plate and a second movable plate, wherein the first movable plate and the second movable plate are rotatably connected to form a combined plate, the combined plate is the same as the fixed plate in shape and size, one side of the fixed plate is connected with a sharp corner plate and two inverted hook plates, the sharp corner plate is located in the middle of the edge of the fixed plate, the two inverted hook plates are respectively arranged on two sides of the sharp corner plate, inverted hooks of the two inverted hook plates are bent towards the direction of the sharp corner plate, two sides of the fixed plate are obliquely arranged, the fixed plate and the combined plate are bent and rolled on the side face of the lining assembly to form a cylindrical shape, the inverted hook plates are mutually clamped in a pairwise mode, the two sharp corner plates are respectively located between the two sides of the fixed plate and the combined plate, and the distance between the rapid expansion device and the pipe wall is smaller than the dislocation stroke of the sharp corner plates after the fixed plate and the combined plate are transferred in opposite directions.

2. The rapid expansion device of claim 1, wherein: the two side edges of the fixed plate and the combined plate are obliquely arranged, a gap between the two side edges of the fixed plate and the combined plate after being bent is conical, and the two sharp corner plates are respectively positioned in the two gaps.

3. The rapid expansion device of claim 2, wherein: the two sides of the fixed plate and the combined plate are respectively attached to the sides of the two pointed angle plates.

4. The rapid expansion device of claim 1, wherein: the two sides of the sharp corner plate are provided with clamping grooves, and the two clamping grooves are close to the pointed ends of the sharp corner plate respectively.

5. The rapid expansion device of claim 4, wherein: staggered bulges which are opposite to the clamping grooves are respectively arranged on the two side edges of the fixed plate and the combined plate.

6. The rapid expansion device of claim 4, wherein: and dislocation grooves are formed in the two side edges of the sharp corner plate and are positioned between the clamping grooves and the edges of the fixed plate.

7. The rapid expansion device of any one of claims 1 to 6, wherein: and (4) carrying out straight angle treatment on the top end of the sharp corner plate.

8. The rapid expansion device of any one of claims 1 to 6, wherein: the inside lining subassembly includes locking screw and plastic part, the plastic part install after the book the fixed plate with in the compoboard, just the both ends of plastic part all are provided with a plurality of tension grooves, behind the screw head radius of locking screw and the book the fixed plate with the excircle radius of compoboard is the same.

9. The rapid expansion device of claim 8, wherein: the plastic part includes by the linkage segment and two support sections that the through-hole runs through, two support the section install respectively in the linkage segment both ends, just the radius of linkage segment is less than two support the radius of section.

10. The rapid expansion device of any one of claims 1 to 6, wherein: the joint of the first movable plate and the second movable plate is located on the symmetry axis of the combined plate.

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