CN211899615U

CN211899615U - Protective sleeve for fixing aluminum film plate

Info

Publication number: CN211899615U
Application number: CN202020553037.8U
Authority: CN
Inventors: 王柯浩; 吕燕霞; 戴俊辉; 熊凯; 樊泽平
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Zhejiang Industry Polytechnic College
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-11-10
Anticipated expiration: 2030-04-14

Abstract

The utility model provides a protective sheath of fixed usefulness of aluminium lamina membranacea belongs to civil engineering technical field. The protective sheath includes the elastic body of the tube-shape that is formed by the bending of rectangle sheet metal piece, elastic body is the heliciform at transversal personally submitting under not receiving the external force condition, elastic body's both ends have an patchhole respectively, the marginal part of two straight ends of elastic body is provided with sand grip one and sand grip two respectively, sand grip one is located sand grip two inboards, sand grip stretches out earlier on elastic body's global outside, sand grip stretches out to elastic body's global inboard, sand grip one and sand grip two can lean on the trend continuation deformation of restriction elastic body to patchhole aperture increase after each other. The utility model has the advantages of can improve the dismouting portability.

Description

Protective sleeve for fixing aluminum film plate

Technical Field

The utility model belongs to the technical field of civil engineering, a protective sheath of fixed usefulness of aluminium lamina membranacea is related to.

Background

Before concrete is poured, aluminum formworks are required to be arranged on two sides of the prefabricated wall respectively, and then the aluminum formworks on the two sides are fixed, so that a firm space for pouring concrete is formed between the aluminum formworks on the two sides.

The existing method comprises the following steps: as shown in fig. 1, a protective sleeve is arranged between two aluminum templates, a through hole is reserved at a position corresponding to each aluminum template, a bolt penetrates through the protective sleeve and then is fixed, the protective sleeve plays a role in limiting the inner side interval of each aluminum template, the bolt fixes the outer side gap of each aluminum template so as to clamp the aluminum templates, and meanwhile, the protective sleeve can play a role in protecting the bolt so as to prevent concrete from entering the position of the bolt and prevent the bolt from being pulled out during template removal; based on this, we have found that this approach has the following problems: 1. gaps can be extruded between the two ends of the protective sleeve and the aluminum template when concrete is poured, and concrete slurry can still enter the protective sleeve; 2. when the mold is disassembled, the bolt is easy to take out, but the protective sleeve is difficult to pull out due to the wrapping and bonding of the solidified concrete, needs to be hammered out or flow in the wall surface, is time-consuming and labor-consuming, and cannot be used for the second time if not pulled out; 3. when the protective sleeve is installed, under the condition that only one side of the aluminum template is laid, the bolt is inserted, then the protective sleeve is sleeved, and finally the other side of the aluminum template is laid, so that the protective sleeve is easy to lose in the process, the bolt is easy to drop and lose in the process, and the lost protective sleeve and the bolt cannot be picked up due to the fact that the aluminum template is laid from bottom to top, and material waste is caused; during construction, operators often selectively do not clamp and position the aluminum formwork due to the loss of bolts or protective sleeves, so that the firmness of an aluminum formwork system is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists to current technique, provide a protective sheath of fixed usefulness of aluminium lamina membranacea, the utility model aims to solve the technical problem how improve dismouting efficiency and dismouting portability.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a protective sheath of fixed usefulness of aluminium lamina membranacea, a serial communication port, the protective sheath includes the elastic body of the tube-shape that is formed by the bending of rectangle slice metal block, elastic body is the transversal heliciform of personally submitting under not receiving the external force condition, elastic body's both ends have an patchhole respectively, the marginal part of two straight ends of elastic body is provided with sand grip one and sand grip two respectively, sand grip one is located sand grip two inboards, sand grip stretches out earlier on elastic body's global outside, sand grip two stretches out to elastic body's global inboard, sand grip one and sand grip two can lean on the trend continuation deformation of restriction elastic body to the increase of patchhole aperture after each other.

In the above protective sleeve for fixing an aluminum laminated board, the elastic body is provided with a flange at an inlet of the insertion hole, and the flange extends out of the elastic body.

Drawings

Fig. 1 is a structure and application scenario of a protective sheath in the prior art.

Fig. 2 is a cross-sectional view of the present aluminum formwork system when the second connector is not inserted.

Fig. 3 is a cross-sectional view of the aluminum formwork system after installation.

Fig. 4 is a schematic structural diagram of a protective sleeve in the aluminum formwork system.

In the figure, 1, a first aluminum template; 11. a first mounting hole; 12. a first limiting groove; 2. a second aluminum template; 21. a second mounting hole; 22. a second limiting groove; 3. a protective sleeve; 31. an elastic body; 32. a first convex strip; 33. a convex strip II; 34. a flange; 4. a first connector; 41. a first plunger; 42. a first limit boss; 43. a threaded hole; 5. a second connector; 51. a second plunger; 52. a second limit boss; 53. and extruding the block.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 2, 3 and 4, the aluminum formwork system includes a first aluminum formwork 1, a second aluminum formwork 2 engaged with the first aluminum formwork 1, the protective sleeve 3, first connector 4 and second connector 5, set up the first mounting hole 11 perpendicular first aluminum mould board 1 on the first aluminum mould board 1, set up the second mounting hole 21 coaxial with the mounting hole on the second aluminum mould board 2, protective sleeve 3 includes the elastic body 31 of the tube-shape that is formed by the bending of rectangle sheet metal piece, elastic body 31 is the transversal heliciform that personally submits under not receiving the external force condition, elastic body 31's both ends have an patchhole respectively, elastic body 31 can be inserted simultaneously and establish in first mounting hole 11 and second mounting hole 21, first connector 4 and second connector 5 can be respectively towards two patchholes and insert in elastic body 31, threaded connection between first connector 4 and the second connector 5.

The edge parts of two straight ends of the elastic body 31 are respectively provided with a first convex strip 32 and a second convex strip 33, the first convex strip 32 is positioned inside the second convex strip 33, the first convex strip 32 extends out of the peripheral surface of the elastic body 31, the second convex strip 33 extends out of the peripheral surface of the elastic body 31, and the first convex strip 32 and the second convex strip 33 can be abutted against each other to limit the trend of increasing the aperture of the elastic body 31 to the insertion hole to continue to deform.

The elastic body 31 is provided with a flange 34 at an entrance of the insertion hole, and the flange 34 extends to an outside of the elastic body 31.

The first connector 4 comprises a first inserted rod 41 which can be inserted into the insertion hole, a first limit boss 42 positioned at one end of the first inserted rod 41, and a threaded hole 43 with an opening facing to the other end of the first inserted rod 41, the second connector 5 comprises a second inserted rod 51 which can be inserted into the installation hole, and a second limit boss 52 positioned at one end of the second inserted rod 51, and the second inserted rod 51 is provided with a squeezing block 53 which can squeeze the inner wall of the elastic body 31; the middle part of the first mounting hole 11 is provided with a first limiting groove 12 with a diameter larger than that of the first mounting hole 11, the middle part of the second mounting hole 21 is provided with a second limiting groove 22 with a diameter larger than that of the second mounting hole 21, the two flanges 34 can be respectively positioned in the first limiting groove 12 and the second limiting groove 22, the first boss and the second boss can respectively abut against the two flanges 34, and one end, away from the second boss, of the second insertion rod 51 is provided with a screw rod matched with the threaded hole 43.

The first plunger 41 has a guide portion in the shape of a tapered cylinder at an end thereof close to the opening of the screw hole 43. At least two pressing blocks 53 are provided, and the pressing blocks 53 are alternately fixed on the second inserting rod 51.

The elastic body 31 is made of elastic steel, and the arrangement of the flange 34 still does not affect the elasticity of the elastic body, but improves the deformation resistance. During installation, the "split" of the elastic body 31 is directed as far downward as possible to reduce the pressure of infiltration after the concrete is poured.

Because the first convex strip 32 and the second convex strip 33 do not extend to the two flanges 34, and the two flanges 34 can be respectively positioned in the first limiting groove 12 and the second limiting groove 22 in the process that the elastic body 31 is extruded from inside to outside, the first limiting groove 12 and the second limiting groove 22 respectively limit the elastic body 31 in the radial direction after the elastic body 31 is inflated, so that the first aluminum template 1 and the second aluminum template 2 are close to each other or are far away from each other and are limited, the flange 34 can be separated from the limit of the first limiting groove 12 and the second limiting groove 22 due to the fact that the extrusion force on the elastic body 31 is loosened, and the diameter of the flange can be recovered to be in a small state, so that the flange 34 can be pulled out from the first mounting hole 11 or the second mounting hole 21.

The dismouting portability and high efficiency: after the first aluminum template 1 and the second aluminum template 2 are both installed, the elastic body 31 is directly inserted into the first installation hole 11 and the second installation hole 21, the first connector 4 and the second connector 5 push the first aluminum template to be in the right position, namely the flange 34 is positioned in the first limiting groove and the second limiting groove, the process of expanding the elastic body 31 is carried out in the process of inserting the first connector 4 and the second connector 5, the first connector 4 and the second connector 5 are fixed and then installed, when the first aluminum template is disassembled, the first connector 4 and the second connector 5 are taken out, the elastic body 31 is retracted and pulled out after being restored, the elastic body 31 can be taken out, if the elastic body 31 is adhered by concrete and cannot be retracted, only a small prying tool such as a screwdriver needs to be utilized to poke and press the convex strip 32 positioned on the inner wall of the elastic body 31, and the elastic body 31 automatically retracts after being loosened, can be taken out quickly.

Because the convex strip 32 and the convex strip 33 are close to each other after the elastic body 31 is extruded, the 'crack' of the elastic body 31 can be sealed, concrete slurry is prevented from entering, moreover, because the thread structure of the first connecting head 4 is an internal thread, the first connecting head is externally screwed when being taken out, and even if partial slurry enters, the normal taking out of the first connecting head cannot be influenced.

Although the elastic body 31 is a non-standard part and has a gap when being matched with a hole, the first connector 4 and the second connector 5 can seal the first way of slurry outlet, and the first limiting groove 12 and the second limiting groove 22 have the effect on the flange 34, so that the second way of sealing is realized, the notch of the flange 34 is shielded, and the slurry is prevented from leaking from the first mounting hole 11 and the second mounting hole 21.

Based on elastic body 31 can be light take out, can realize reuse, also can not appear dropping and losing in the installation.

As another scheme, there are at least two extrusion blocks 53, the extrusion blocks 53 are sleeved on the second insertion rod 51, and a return spring connected with the adjacent extrusion blocks 53 is arranged between the adjacent extrusion blocks 53, so that the extrusion blocks 53 can uniformly expand the elastic body in the moving process.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a protective sheath of fixed usefulness of aluminium lamina, its characterized in that, protective sheath (3) include elastic body (31) by the tube-shape of the crooked formation of rectangle slice metal block, elastic body (31) are the transversal heliciform of personally submitting under not receiving the external force condition, elastic body (31)'s both ends have an patchhole respectively, the marginal part of two straight ends of elastic body (31) is provided with sand grip one (32) and sand grip two (33) respectively, sand grip one (32) are located sand grip two (33) inboardly, sand grip one (32) stretch out to the global outside of elastic body (31), sand grip two (33) stretch out to the global inboard of elastic body (31), sand grip one (32) and sand grip two (33) can be leaned on each other and then restrict elastic body (31) to the trend continuation deformation of patchhole aperture increase.

2. The aluminum membrane plate fixing protective sleeve according to claim 1, wherein the elastic body (31) is provided with a flange (34) at the entrance of the insertion hole, and the flange (34) is protruded to the outside of the elastic body (31).