CN213204960U

CN213204960U - Fastening device, elevation control support and high-low cross-mold template support

Info

Publication number: CN213204960U
Application number: CN202021247512.5U
Authority: CN
Inventors: 熊家奎
Original assignee: Sichuan Anjiepeng Technology Co ltd
Current assignee: Sichuan Anjiepeng Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-14
Anticipated expiration: 2030-06-30

Abstract

The utility model belongs to the technical field of the construction, a fastening device, elevation control support and height are striden mould template support is disclosed. The utility model discloses a fastener fastens water and electricity built-in fitting, elevation control support and/or template support in the template through first connecting portion and second connecting portion, when dismantling the template, because can dismantle between first connecting portion and the second connecting portion and be connected, only need overcome the frictional force between first connecting portion and the second connecting portion and can separate first connecting portion and second connecting portion, intensity of labour when can reducing the form removal. Simultaneously when dismantling the template, second connecting portion itself and template fastening connection, first connecting portion do not with template direct contact to prevent that first connecting portion from damaging the template, thereby improve template reuse's number of times and the life of template.

Description

Fastening device, elevation control support and high-low cross-mold template support

Technical Field

The utility model belongs to the technical field of the construction, concretely relates to fastener, elevation control support and height stride mould template support is applicable to the water and electricity built-in fitting in the cast-in-place concrete construction, height stride the device that mould template support, elevation control support etc. need fix a position the fastening on the template surface.

Background

The existing construction of suspended moulds (high-low span moulds) is generally divided into suspended moulds for kitchens and bathrooms, suspended moulds for balconies, suspended moulds for bay windows, suspended moulds for retaining walls and the like, and the suspended moulds are supported by cement mortar cushion blocks, but the elevation compactness of the cement mortar cushion blocks is much lower than that of concrete for building the moulds, so when the cement mortar cushion blocks and the concrete for building the moulds form a whole, the cement mortar cushion blocks are easy to seep; meanwhile, the cement mortar cushion block can cause engineering quality problems of collapse, deviation, deformation and the like of the suspended mould due to treading or impact of concrete pouring.

The mode still adopted to hanging the mould among the prior art has: the hoisting die positioning steel bars are welded on the beam steel bars to realize the control of elevation and plane positioning, but the method needs professional welders for welding, so that the construction cost is high, and meanwhile, the forming quality is not easy to control due to the difference of welding technologies.

In order to solve the above problems, conventionally, there have been developed a high-low die-spanning formwork support (or referred to as a formwork support or a formwork hanger) and an elevation control support (or referred to as an elevation controller, a plate thickness controller, or a plate thickness control support) for controlling an elevation. The elevation control support comprises an elevation control support made of steel bars and an elevation control support made of plastics.

For example, utility model patent application No. 201521041166.4 discloses a template support is striden to building height, including the support frame, set up and be used for carrying out the engaging lug fixed with the support frame in the support frame bottom to and set up in the limiting plate at support frame top.

Meanwhile, in the prior art, an elevation control bracket (or called an elevation controller, a plate thickness controller, or a plate thickness control bracket) is used for controlling the plate thickness (namely controlling the thickness of a casting plate), and the elevation (plate thickness) is controlled by using the height of the plastic or iron elevation controller.

For example, the utility model with application number 201621361277.8 discloses an elevation controller for floor concrete, which comprises a control elevation concrete block, a suspension wire, a first controller support rod, a first controller fixing foot, a second controller fixing foot, a fixing screw hole site, a second controller support rod, a third controller fixing foot and an adjustable height screw cap, wherein the adjustable height screw cap is arranged at the bottom end of the control elevation concrete block, the suspension wire is connected inside the adjustable height screw cap, the lower end of the suspension wire is connected with the first controller support rod, the bottom end of the first controller support rod is provided with the first controller fixing foot, the second controller support rod is arranged at one side of the first controller support rod, the second controller support rod is arranged at the bottom end of the second controller support rod, the third controller support rod is arranged at one side of the second controller support rod, and a third controller fixing foot is arranged at the bottom end of the third controller support rod.

In the prior art, the template is generally made of a wood mold, an aluminum mold, a plastic mold or a bamboo mold. The fixing modes of the connecting ends (or connecting lugs) of the fixed feet (or called support frames) of the elevation control support and the formwork support are all fixed by screws, rivets, screws or nails. After the concrete is poured, the formwork needs to be removed (i.e. the formwork is removed, so that the formwork support and the elevation controller are separated from the formwork).

The following problems exist in the use process of the method:

1. because the static friction force between the screws, the rivets, the screws or the nails and the template needs to be overcome, the screws, the rivets, the screws or the nails used for installing the template bracket and the elevation control bracket can be separated from the template, so that the labor intensity is high; meanwhile, in the form removal process, the template is not directly pulled out vertically downwards, but has a certain inclination angle, so that the template is extremely easy to damage in the form removal process.

2. When the elevation control support is fixed on the template by adopting screws, rivets, screws or nails, the elevation control support is embedded in the concrete to form a whole with the concrete, and after the template is disassembled, the screws, the rivets, the screws or the nails can be left in the concrete and expose out of the bottom of the concrete (ceiling concrete or ceiling), and manual cutting and polishing are needed. The problem of damaging the bottom surface of the concrete exists in the cutting and grinding processes, so that the concrete needs to be repaired, and a large potential safety hazard exists.

Meanwhile, in the building construction process, the hydroelectric embedded parts (water pipes, electric wires, cables, junction boxes, control boxes and the like) need to be fixed on the formwork by adopting screws, rivets, screws or nails in some cases, then concrete is poured, and the technical problem also exists when the formwork is removed after the concrete is poured.

SUMMERY OF THE UTILITY MODEL

To the above technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a fastening device of mould template support is striden to water and electricity built-in fitting, elevation control support and height for with water and electricity built-in fitting, template support and/or elevation control support mounting in the template, a serial communication port, fastening device includes first connecting portion and the second connecting portion that can dismantle the connection each other, second connecting portion and template fastening connection, first connecting portion pass water and electricity built-in fitting, template support and/or elevation control support the link and stretch into in the second connecting portion and realize dismantling with the second connecting portion and be connected the feasible first connecting portion and second connecting portion break away from each other when dismantling the template.

In an embodiment, first connecting portion includes interconnect's head rod and end cap, the second connecting portion includes the second connecting rod that is used for with template fastening connection, the connecting hole that is used for with head rod mutual adaptation and ability centre gripping head rod is offered to the second connecting rod, the overall dimension of end cap is greater than the external diameter of the through-hole on the link of water and electricity built-in fitting, template support and/or elevation control support, the one end and the end cap fixed connection of head rod, the other end of head rod passes through in the through-hole on the link and stretch into the connecting hole and with between the connecting hole form be used for with the pre-tightening force of built-in fitting, template support and/or elevation control support fastening in the template.

In one embodiment, at least a portion of the first connecting rod is in interference fit with the connecting hole.

In one embodiment, the periphery of the first connecting rod and/or the inner wall of the connecting hole is provided with anti-slip lines.

In one embodiment, the upper end surface of the second connecting rod extends out of the upper surface of the template.

In one embodiment, the first connecting rod is provided with an elastic protrusion, and a groove matched with the protrusion is formed in the connecting hole.

The utility model also provides a fastener of demountable installation spare for the installed part detachable that will have the link connects on the mounting, a serial communication port, fastener is including first connecting portion and the second connecting portion of connection can be dismantled each other, second connecting portion and template fastening connection, first connecting portion pass water and electricity built-in fitting, template support and/or elevation control support the link and stretch into in the second connecting portion realize dismantling with the second connecting portion and be connected and make first connecting portion break away from each other with the second connecting portion when dismantling the template. The structure of the fastening device has been explained above.

The utility model also provides a formwork support is striden to height, formwork support includes at least one fixed foot, be provided with at least one link on the fixed foot, the link sets aforementioned fastener.

The utility model also provides an elevation control support, elevation control support includes at least one link, the link has set aforementioned fastener.

Drawings

Fig. 1 is a schematic structural view of one embodiment of a formwork support taught in the present invention;

FIG. 2 is a schematic structural view of another embodiment of a formwork support as taught in the present invention;

FIG. 3 is a schematic structural view of another embodiment of a formwork support as taught in the present invention;

FIG. 4 is a schematic structural view of another embodiment of a template holder as taught in the present invention;

FIG. 5 is a schematic view of another embodiment of a template holder as taught in the present invention;

fig. 6 is a schematic view of an embodiment of an elevation control bracket as taught in the present invention;

fig. 7 is a schematic structural view of another embodiment of the elevation control bracket of the present invention;

fig. 8 is a schematic structural view of another embodiment of the elevation control bracket of the present invention;

fig. 9 is a schematic structural view of another embodiment of the elevation control bracket of the present invention;

fig. 10 is a schematic structural view of another embodiment of the elevation control bracket of the present invention;

fig. 11 is a schematic structural view of an embodiment of the fastening device of the present invention;

FIG. 12 is a schematic view of the installation of the fastening device of FIG. 11;

fig. 13 is a schematic structural view of an embodiment of the fastening device of the present invention;

FIG. 14 is a schematic view of the installation of the fastening device of FIG. 13;

fig. 15 is a schematic structural view of an embodiment of the fastening device of the present invention;

FIG. 16 is a schematic view of the installation of the fastening device of FIG. 15;

fig. 17 is a schematic structural view of an embodiment of the fastening device of the present invention;

FIG. 18 is a schematic view of the installation of the fastening device of FIG. 17;

fig. 19 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 20 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 21 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 22 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 23 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 24 is a schematic structural view of an embodiment of the fastening device of the present invention;

fig. 25 is a schematic structural diagram of an embodiment of a control box according to the present invention;

fig. 26 is a schematic view of the control box of fig. 25 connected to the fastening device of the present invention;

the labels in the figure are: 01. fixing feet 02, a connecting end 03, a through hole 04, a limiting plate or a position control rod 05, a placing surface 06, a limiting rod 07, a concrete block 08, a screw rod 09, a nut 010, a stud 011, a turntable 012, a positioning surface 013, a building body 014 and a control box;

1. the connecting structure comprises a first connecting part 11, an end cap 12, a first connecting rod 13 and a large-diameter section; 2. The second connecting part 21, the second connecting rod 22, the connecting hole 23, the thread 24, the enlarged head section 25, the nut 26, the inner hexagon 27 and the groove; 3. and (5) template.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Combine figure 1, this figure demonstrates a template support's structural schematic, and this template support includes a plurality of fixed feet 01, and a plurality of fixed feet 01 link together and form an overall structure, and the top of fixed foot 01 is connected with limiting plate 04, and the bottom of fixed foot 01 is provided with link 02, and link 02 is used for being connected with the template, and wherein, has seted up through-hole 03 on the link 02, and wherein fixed foot 01 can integrated into one piece with link 02. When the formwork support is used, firstly, the formwork support with the corresponding height is selected according to the thickness of a floor slab, then a positioning line is popped up on a low-span formwork, the formwork support is fixed on the low-span formwork (the formwork is a wood formwork, an aluminum formwork, a bamboo formwork or a plastic formwork) through a connecting end 02 on a fixing foot 01 and a through hole 03 on the connecting end 02 according to the positioning line, then a hanging formwork is placed on the upper portion of the fixing foot 01 and is tightly attached to a limiting plate (namely the hanging formwork on one side of concrete forming is tightly attached to the limiting plate 04), and then the hanging formwork and the limiting plate are bound together through iron wires and the like.

Combine figure 2, this figure has demonstrated another kind of formwork support's structural schematic, and this formwork support includes three fixed

foot

01, and 3 fixed feet link together and form an overall structure, and wherein 3 fixed foot 01 are triangle-shaped and distribute, are convenient for improve stability, and the upper portion of fixed foot 01 has the face of placing 05 that is used for placing the hanging mould, and the one end of placing the face 05 is connected with accuse position pole 04. The method of using the template support is the same as that of the template support shown in the previous figure 1, and the description is omitted here.

With reference to fig. 3, the drawing shows a schematic structural diagram of another template bracket, where the template bracket is only slightly different from the template bracket in fig. 2 in placement positions of 3 fixing legs, and the template bracket is the same as the template bracket in fig. 2 in use method, and is not described again.

With reference to fig. 4, this figure shows a schematic view of another form frame, which differs from the form frame of fig. 3 in that: one end is provided with accuse position pole 04 on placing the face 05, the other end of placing the face 05 is provided with gag lever post 06, when using, this template support is when using, at first according to floor thickness, select highly corresponding template support, then pop out the positioning line on the template is striden to the low, according to the positioning line and fix the template support on the template is striden to the low through-hole 03 on link 02 and the link 02 on the fixed foot 01 (the template is the wood pattern, the aluminium mould, the superimposed sheet), then place the hanging die on placing the face 05, and realize fixed (or the ligature is fixed) to the centre gripping of hanging the mould through accuse position pole 04 and gag lever post 06's combined action.

With reference to fig. 5, the accompanying drawing shows a schematic structural diagram of another formwork support, the formwork support includes a fixing foot 01, wherein the fixing foot 01 can be a frame structure formed by enclosing reinforcing steel bars, the fixing foot 01 can also be made of a plate material, connecting ends 02 are respectively arranged at the tops of the front side and the rear side of the fixing foot 01, through holes 03 are formed in the connecting ends 02, a placing surface 05 for placing a hanging mold is formed at the upper end surface of the fixing foot 01, a control rod 04 is arranged on the placing surface 05, and a using method of the formwork support is the same as that of the formwork support described in fig. 1, and is not described again.

The formwork support as described in the above example can prevent the suspended formwork from sinking, floating, shifting and the like, thereby improving the concrete forming quality and reducing the construction cost.

However, when the formwork support is installed on the formwork (a wood mold, an aluminum mold, a bamboo mold, or a plastic mold) in the prior art: screws, rivets, screws or nails are directly arranged in the through holes 03 on the connecting end 02 from top to bottom in a screw, riveting, screw or nail mode so as to fasten the formwork support on the formwork. When the formwork is disassembled after concrete is poured and molded, namely the formwork support and the formwork are separated, the static friction force between the screws, the rivets, the screw rods, the nails and the formwork needs to be overcome, and the formwork support and the formwork can be separated. However, this method has the following problems: when the form is disassembled, because the static friction force among the screws, the rivets, the screw rods, the nails and the form plates needs to be overcome, the labor intensity is high when the form is disassembled, and the disassembling efficiency is low.

Meanwhile, the template is disassembled in a prying mode instead of being vertically taken out downwards (disassembled) in the disassembling process, so that the template has a certain inclination angle, the template is damaged by screws, rivets, screws and nails, and the repeated use times (service life) of the template are reduced.

With reference to fig. 6, the drawing shows a schematic structural diagram of an elevation control bracket (or called as an elevation controller, a plate thickness control bracket), the elevation control bracket comprises three fixing legs 01, the tops of the 3 fixing legs 01 are connected together and connected with a screw rod 08, a concrete block 07 is sleeved on the screw rod, a nut is installed at the bottom of the concrete block 07, the height of the concrete block 07 is adjusted through the cooperation of the nut and the screw rod 08, so that the elevation of a floor slab (concrete) is controlled through the concrete block 07, a connecting end 02 is connected to the bottom of each fixing leg 01, the connecting end 02 and the fixing legs 01 can be integrally formed, and a through hole 03 is formed in the connecting end 02. When the elevation control support is used, the elevation control support is arranged according to actual needs of site construction, the elevation control support is fixed on a formwork (the formwork is a wood formwork, an aluminum formwork or a laminated slab) through the connecting end 02 on the fixing foot 01 and the through hole 03 on the connecting end 02, elevation control is achieved through the upper surface of the concrete block 07, namely, when concrete is leveled, the upper surface of the concrete block 07 serves as a standard, and elevation control is conducted through the concrete block 07. After the pouring is finished, the elevation control support is embedded in the concrete and forms a whole with the concrete.

With reference to fig. 7, this figure shows a schematic structural diagram of another elevation control bracket, this elevation control bracket includes a plurality of fixed feet 01, generally, three fixed feet 01 form a stable structure, the top of each fixed foot 01 is connected together through nut 09, thereby connect each fixed foot 01 together and form a whole, the bottom of fixed foot 01 is connected with link 02, be provided with through-hole 03 on link 02, link 02 and through-hole 03 are used for realizing the fixed and stable of elevation control bracket, nut 09 sets stud 011, the top of stud 011 is connected with carousel 010, in some embodiments, stud 011 and carousel 010 can be fixed connection, also can be the detachable connection. When the elevation control support is used, the elevation control support is arranged according to actual needs of site construction, the elevation control support is fixed on a template (the template is a wood mold, an aluminum mold or a laminated plate) through the connecting end 02 on the fixing foot 01 and the through hole 03 on the connecting end 02, the upper surface of the rotary table 010 reaches a designed elevation and is controlled to be elevated by the upper surface of the rotary table 010 by rotating the rotary table 010, namely, when concrete is found out, the upper surface of the rotary table 010 is used as a standard, and therefore elevation control is carried out through the rotary table 010. After the pouring is finished, the elevation control support is embedded in the concrete and forms a whole with the concrete.

Combine fig. 8 and fig. 9, the structural schematic diagram of two kinds of other embodiments of elevation control support has been demonstrated, this elevation control support includes three fixed foot 01, three fixed foot 01 forms a stable structure who is triangle-shaped on the whole, the top of fixed foot 01 has locating surface 012, the bottom of fixed foot is connected with link 02, the link has through-hole 03, realize elevation control support's fixed through link 02 and through-hole 03, then utilize locating surface 012 to realize the control of elevation. The elevation height of the elevation control bracket shown in fig. 8 and 9 cannot be adjusted, and thus, when in use, it is first necessary to select the elevation control bracket of a corresponding height according to the designed thickness of a floor slab (concrete), then arrange the elevation control bracket at a corresponding position according to the site construction needs, and fix the elevation control bracket through the connection end 02 and the through hole 03, and finally, control of the concrete elevation is achieved by using the positioning surface 012.

With reference to fig. 10, the drawing shows a schematic structural diagram of another elevation control support, the template support includes a fixing leg 01, wherein the fixing leg 01 may be a frame structure surrounded by steel bars, the fixing leg 01 may also be made of a plate material, the top of the front side and the top of the rear side of the fixing leg 01 are both provided with a connecting end 02, the connecting end 02 is provided with a through hole 03, the upper end surface of the fixing leg 01 forms a positioning surface 012 for elevation control, and a using method of the elevation control support is the same as that of the elevation control support in fig. 6 to 9, which is not described herein again.

As shown above, the elevation control bracket and the formwork bracket are different in use, but the structural form is only different from the limiting plate or the positioning rod 04 for fixing the top of the foot 01, that is, at least one limiting plate or positioning rod 04 is installed on the elevation control bracket, so that the elevation control bracket can be used as the formwork bracket. The concrete blocks 07, the turntables 011 and the positioning surfaces 012 on the fixing feet of the elevation control bracket can be used as the placing surfaces 05 of the template bracket. In a similar way, after the limiting plate or the position control rod 04 and the limiting rod 06 at the top of the formwork support are removed, the flat placing surface 05 can be used as an elevation control surface of the elevation control support.

Therefore, when the elevation control bracket is fastened on a template (a wood mold, an aluminum mold, a bamboo mold or a plastic mold) through the connecting end 02 and the through hole 03, the following technical problems exist:

1. when the form is removed, the problems of high labor intensity and easy damage of the form plate during the form removal due to the need of overcoming the static friction force among the screws, the rivets, the screw rods, the nails and the form plate are solved.

2. When the formwork for installing the elevation control bracket is removed, the strength of the concrete does not reach the designed standard strength in some cases, so that there is a problem that the concrete is damaged due to excessive force when the formwork is removed.

3. Because the elevation control support is embedded in the concrete to form a whole with the concrete, after the template is disassembled, screws, screw rods or nails can be left in the concrete and expose the bottom of the concrete (ceiling concrete and ceiling), and manual cutting and polishing are needed. The problem that the bottom surface of the concrete is damaged exists in the cutting and polishing processes, so that the concrete needs to be repaired, and the manual cutting, polishing and repairing are all performed at high altitude, so that great potential safety hazards exist.

Meanwhile, in the building construction process, the hydroelectric embedded parts (water pipes, electric wires, cables, junction boxes, control boxes and the like) need to be fixed on the templates in a screw, screw rod or nail connection mode under some conditions (for the water pipes, the electric wires and the cables, the water pipes, the electric wires and the cables are generally wrapped by buckles, the buckles are provided with connecting ends 02, the connecting ends 02 are provided with through holes 03, and then the through holes 03 are penetrated through by the screws, the screw rods or the nails to be fastened with the templates, for the junction boxes and the control boxes, the through holes 03 of the junction boxes and the control boxes are generally used for installing the screws, the screw rods or the nails), then concrete is poured, and the same technical problems as those of installing elevation control supports and template supports in the templates exist when the templates are disassembled after the concrete is poured.

Combine the attached drawing, the utility model provides a fastening device of mould template support is striden to water and electricity built-in fitting, elevation control support and height for with water and electricity built-in fitting, template support and/or elevation control support mounting in the template: fastener can dismantle first connecting portion 1 and second connecting portion 2 of connection including each other, second connecting

portion

2 and 3 fastening connection of template, first connecting portion 1 passes water and electricity built-in fitting, formwork support and/or elevation control support's link 02 and stretches into in second connecting portion 2 and realizes dismantling with second connecting portion 2 and be connected the feasible first connecting portion 1 and second connecting portion 2 break away from each other when dismantling template 3. In the use process of the utility model, the second connecting part is firstly installed on the template 3, the hydroelectric embedded part, the elevation control bracket and/or the template bracket are/is placed above the second connecting part 2, then the first connecting part passes through the connecting end 02 of the hydroelectric embedded part, the elevation control bracket and/or the template bracket and at least one part of the first connecting part 1 is inserted into the second connecting part 2, so that the first connecting part and the second connecting part are connected, and the hydroelectric embedded part, the elevation control bracket and/or the template bracket are fastened on the template 3 through the first connecting part 1 and the second connecting part 2, when the template is disassembled, because the first connecting part and the second connecting part are detachably connected, the first connecting part 1 and the second connecting part 2 can be separated only by overcoming the friction force between the first connecting part 1 and the second connecting part 2, compare in prior art need overcome screw, screw rod, rivet or nail and the template between frictional force, the utility model discloses intensity of labour when can reducing the form removal.

And simultaneously the utility model discloses because first connecting portion 1 is not direct and the template contact, when dismantling the template, second connecting portion itself and template fastening connection, first connecting portion 1 not with template direct contact to prevent that first connecting portion 1 from damaging the template, thereby improve template reuse's number of times and the life of template.

Meanwhile, after the disassembly, the second connecting parts 2 are still tightly connected with the template 3, the second connecting parts 2 and the template can be reused together, thereby improve next water and electricity built-in fitting, the installation effectiveness and the installation quality of formwork support and elevation control support (because present building floor number of piles is generally higher, consequently, the template of the same position department of different floors can be general, and the water and electricity built-in fitting of the same position department of different floors, the position of placing of formwork support and/or elevation control support is also the same, consequently second connecting portion 2 can regard as a whole to be used for the use of same position on other floors with the template, thereby no longer need trompil again and install second connecting portion 2 on the template, consequently, can improve next water and electricity installed part, the installation effectiveness and the installation quality of formwork support and/or elevation control support), thereby reach the purpose that reduces construction cost. That is to say the utility model discloses when water and electricity built-in fitting, elevation control support, formwork support are used for the construction of standard layer, realized once accurate location, used to the purpose of completion repeatedly to reach and improve construction quality, reduce construction cost's purpose.

Because can used repeatedly in the construction of standard layer, reduced the installation number of times between second connecting portion and the template, can further reduce the damage to the template, improve the life of template. Simultaneously the utility model discloses a fastener when using, what still adopted is to fix water and electricity built-in fitting, formwork support and elevation control support from the upper surface of template, under the prerequisite of the intensity of labour when can enough reducing the form removal, be convenient for again simultaneously with prior art in the same mode of the fastening mode of formwork support and elevation control support carry out the construction operation (from last mode down with water and electricity built-in fitting, formwork support and elevation control support fastening in the template promptly).

In some embodiments, the first connecting portion of the present invention is made of plastic, rubber, or resin, and the second connecting portion is preferably made of a material of a common bolt, such as Q235 or Q195. In some embodiments, the second connecting portion may also be made of plastic, resin, etc., for example, engineering plastic. Preferably, the hardness of the first connecting portion is less than the hardness of the second connecting portion, so that the first connecting portion can be inserted into the second connecting portion by interference fit.

The fastening connection between the second connection portion 2 and the form 3 may be a threaded connection or a fastening connection such as riveting, which will be understood and appreciated by those skilled in the art and will not be described herein.

With reference to fig. 11 and 12, in an embodiment, the first connecting portion 1 includes a first connecting rod 12 and an end cap 11, and preferably, the first connecting rod 12 and the end cap 11 are a unitary structure; second connecting portion 2 is including being used for the second connecting rod 21 with 3 fastening connection of template, second connecting rod 21 offers and is used for with the mutual adaptation of head rod 12 and can the centre gripping head rod 12 connecting hole 22, the overall dimension of end cap 11 is greater than the external diameter of through-hole 03 on the link 02 of water and electricity built-in fitting, formwork support and/or elevation control support, the one end and the 11 fixed connection of end cap 12, the other end of head rod 12 passes through-hole 03 on the link 02 and stretch into in connecting hole 22 and with between the connecting hole 22 form be used for the pretightning force of fastening water and electricity built-in fitting, formwork support and/or elevation control support on template 3.

The connecting hole 22 can clamp the first connecting rod through a pretightening force formed by interference fit between the connecting hole and the first connecting rod.

In this embodiment, the connecting hole 22 is a blind hole, and the periphery of the second connecting rod 21 is provided with a thread 23, i.e. the second connecting part 21 is in threaded connection with the template 3 through the thread 23. In use, the embodiment is used, the second connecting rod is firstly screwed into the threaded hole on the formwork, so that the second connecting rod 21 is tightly connected with the formwork 3 through the threads 23, then the connecting end 02 of the hydroelectric embedded part, the formwork support and/or the elevation control support is placed above the second connecting rod 21, and then the first connecting rod passes through the through hole 03 on the connecting end 02 and is inserted into the connecting hole 22, so that the hydroelectric embedded part, the formwork support and/or the elevation control support is installed on the formwork 3 through static friction force between the first connecting rod 12 and the connecting hole 22.

At least one part of the first connecting rod 12 is in interference fit with the connecting hole 22, that is, the first connecting rod 12 inserted into the connecting hole 22 does not need to be in interference fit with the connecting hole 22, and only needs to be in interference fit with the connecting hole 22. Of course, the first connecting rods inserted into the connecting holes 22 may also each have an interference fit with the connecting holes 22.

Referring to fig. 13 and 14, in some embodiments, the connecting hole 22 may be a through hole, that is, the connecting hole 22 penetrates through the second connecting rod 22, and when the second connecting rod 21 is installed with the formwork 3, the upper end of the second connecting rod 21 extends out of the upper surface of the formwork 3 by a distance, so that the lower end surface of the first connecting rod 12 is spaced from the upper surface of the formwork 3 under the condition that sufficient friction force for the first connecting rod to be inserted into the connecting hole 22 is ensured (i.e., the hydroelectric embedded part, the formwork support and/or the elevation control support can be installed on the formwork). Thereby make when being used for the installation elevation control support, concrete placement accomplishes the back, and the bottom surface that the head rod 12 can not extend the concrete to need not carry out the cutting operation, further reduce construction cost and reduce the potential safety hazard because of the high altitude cutting brings.

Simultaneously, in this embodiment, because connecting hole 22 is the perforating hole, when dismantling template 3 and carry out used repeatedly, the impurity that enters into in connecting hole 22 in the construction or the handling can conveniently be cleared up, prevents that impurity from piling up in connecting hole 22 and influencing during the head rod can not normally insert connecting hole 22, improves the utility model discloses a practicality.

In some embodiments, when the upper end surface of the second connecting rod 21 extends out of the upper surface of the formwork 3, the top of the second connecting rod is an arc surface, and the center of the arc surface faces the direction of the formwork 3 (i.e. the center of the arc surface faces away from the direction of the first connecting rod). In some embodiments, the top of the second connecting rod 21 is "figure eight" when its upper end face extends beyond the upper surface of the formwork 3. In some embodiments, the top of the second connecting rod 21 is truncated when the upper end surface of the second connecting rod 21 extends out of the upper surface of the form 3. In some embodiments, when the upper end surface of the second connecting rod 21 extends out of the upper surface of the formwork 3, the top of the second connecting rod may have a trapezoidal shape with a small upper end and a large lower end. Thereby be convenient for the second connecting rod and the concrete after pouring break away from to second connecting rod 21 can prevent to damage the concrete when form removal, improves the shaping quality of concrete.

Referring to fig. 15 and 16, in this embodiment, the connection hole 22 is a through hole, and an enlarged head 24 is formed at an upper portion of the second connection rod 21, and the enlarged head 24 may serve as a force point for screwing the second connection rod into the form 3, that is, the enlarged head may have a nut shape (the enlarged head has a polygonal shape), so that the second connection rod 21 and the form 3 may be easily screwed, thereby improving the convenience of installation. When the height control bracket is installed on the formwork 3, the enlarged head section 24 is located on the upper surface of the formwork 3 due to the effect of the enlarged head section 24, when the height control bracket is used for installing the height control bracket, the first connecting rod 12 cannot extend out of the bottom surface of concrete after the concrete pouring is finished, so that cutting operation is not needed, the construction cost is further reduced, and potential safety hazards caused by high-altitude cutting are reduced.

With reference to fig. 17 and 18, in this embodiment, the connecting hole 22 is a blind hole, the upper portion of the second connecting rod 21 is formed with an enlarged head 24, and the lower end of the second connecting rod 21 passes through the bottom surface of the die plate and is provided with a nut 25, that is, the second connecting rod 21 is fastened to the die plate through the enlarged head and the nut.

Referring to fig. 19, in this embodiment, the connection hole 22 is a through hole, an enlarged head section 24 is formed at an upper portion of the second connection rod 21, and a top surface of the enlarged head section 24 is an arc-shaped surface, so that the second connection rod 21 is easily separated from the concrete and the concrete is prevented from being damaged by the second connection rod 21 when the form is removed.

Referring to fig. 20, in this embodiment, the connection hole 22 is a through hole, an enlarged head section 24 is formed at an upper portion of the second connection rod 21, and a top surface of the enlarged head section 24 is an arc-shaped surface, so that the second connection rod 21 is easily separated from the concrete, and the second connection rod 21 is prevented from damaging the concrete when the form is removed. And the top of the enlarged head section 24 is provided with an internal hexagonal socket 26. In this embodiment, the enlarged head section 24 is circular, which further reduces the risk of damaging the concrete during removal of the formwork, and at the same time facilitates screwing the second connecting rod 21 into the formwork 3 for fastening connection by providing the internal hexagonal socket 26.

Referring to fig. 21, in this embodiment, the connecting hole 22 is a blind hole, and the lower portion of the first connecting rod 12 is formed with a large diameter section 13 for engaging with the connecting hole 22, that is, the diameter of the large diameter section 13 is larger than that of the rest of the first connecting rod. In this embodiment, the connection hole 22 and the large diameter section 13 of the first connection rod 12 are in interference fit, and the pretightening force formed by the interference fit realizes clamping of the first connection rod.

Referring to fig. 22, in this embodiment, the first connecting rod 12 is provided with a plurality of large diameter sections 22, and a pre-tightening force for fastening the hydroelectric embedded part, the formwork support and/or the elevation control support to the formwork 3 is formed between the large diameter sections 22 and the connecting holes 22.

With reference to fig. 23 and 24, in some embodiments, the first connecting rod is provided with an elastic protrusion, a groove 27 adapted to the protrusion is formed in the connecting hole, and a static friction force between the first connecting rod and the connecting hole 22 can be increased by forming the protrusion and the groove 28, so that the length of the first connecting rod 12 can be shortened as much as possible while the hydroelectric embedded part, the formwork support and/or the elevation control support are fastened on the formwork 3, thereby preventing the first connecting rod from extending out of the bottom surface of the concrete, and thus, no cutting operation is required when the concrete is poured.

In any of the above embodiments, the periphery of the first connecting rod 12 and/or the inner wall of the connecting hole 22 is provided with anti-slip threads, and the anti-slip threads are provided to improve the static friction between the first connecting rod 12 and the connecting hole 22.

In the prior art, a control box (one of hydroelectric embedded parts and one of detachable installation parts) is directly fastened on a building body 013 through screws, threaded rods or nails, however, when a user subsequently installs a controller, a switch, and a circuit is modified or maintained and replaced in the control box, the control box is not convenient to operate due to the fact that the size and the space of the control box is small. If the screw, the bolt or the nail is directly pulled out, since the building body 013 is constructed of bricks or concrete, it is very easy to damage the installation hole for placing the screw, the bolt or the nail. And because the size of the reserved control box is limited, the hole is not convenient to be opened again, so that the problem of instable installation in the subsequent installation and re-control box is caused.

With reference to fig. 25 and 26, the utility model provides a fastener of control box for building still, fastener includes interconnect's first connecting portion 1 and second connecting portion 2, first connecting portion 1 is connected with the link 02 of control box 014, second connecting portion 2 and building body 013 fastening connection, first connecting portion 1 passes the link 02 of control box 014 and stretches into in the second connecting portion 2 and realize dismantling with second connecting portion 2 and be connected and make first connecting portion 1 and second connecting portion 2 break away from each other when dismantling control box 014. The utility model discloses a fastener of control box for building can adopt the structure of the fastener of any one of the above-mentioned. The structure of the fastening device has been described in detail above, and will not be described in detail here.

The utility model provides a fastener of demountable installation spare for the installed part detachable that will have the link connects on the mounting, the utility model discloses a fastener of demountable installation spare can adopt the fastener's of any one that has described earlier structure, and fastener's structure has been elaborated on in the past, and no longer the repeated description here. Wherein can be the template (wood pattern, aluminium mould, bamboo mould or the plastics mould), building body etc. of preceding explanation on the mounting, also can other articles that are used for fixed mounting bracket, the installed part can be the water and electricity built-in fitting, template support, elevation control support, control box etc. of preceding explanation, also can be the installed part that other needs dismantlements, and no longer repeated here.

The utility model provides a formwork support is striden to height, wherein, formwork support can adopt as in attached figure 1-5 arbitrary formwork support, formwork support includes at least one fixed foot 01, be provided with at least one link 02 on the fixed foot 01, link 02 sets the fastener of aforementioned arbitrary embodiment. That is to say, the formwork support with high and low cross structure of the present invention is provided with the fastening device of any of the foregoing embodiments on any of the formwork supports shown in fig. 1 to 5.

The utility model provides an elevation control support, wherein, elevation control support can adopt as in any of figures 6-10 elevation control support, elevation control support includes at least one link 02, link 02 sets the fastener of aforementioned any embodiment. That is, the present invention is provided with the fastening device of any one of the above embodiments on any one of the elevation control brackets as shown in fig. 6 to 10.

The formwork support (i.e., the high-low cross formwork support) and the elevation control support can be made of steel bars and iron or plastic, and can be understood and appreciated by those skilled in the art, and are not described herein again.

Above, without any formal and essential limitations of the invention, it should be pointed out that, for a person skilled in the art, without departing from the method of the invention, several improvements and additions will be possible, which shall also be considered as the scope of protection of the invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a fastening device for with water and electricity built-in fitting, formwork support and/or elevation control support mounting in the template, its characterized in that, fastening device includes first connecting portion and the second connecting portion that can dismantle the connection each other, second connecting portion and template fastening connection, first connecting portion pass water and electricity built-in fitting, formwork support and/or elevation control support's link and stretch into in the second connecting portion and realize dismantling the connection with the second connecting portion and make first connecting portion break away from each other with the second connecting portion when dismantling the template.

2. The fastening device according to claim 1, characterized in that, the first connecting portion includes interconnect's head rod and end cap, the second connecting portion is including being used for the second connecting rod with template fastening connection, the connecting hole that is used for with head rod mutual adaptation and ability centre gripping head rod is offered to the second connecting rod, the overall dimension of end cap is greater than the external diameter of the through-hole on the link of water and electricity built-in fitting, template support and/or elevation control support, the one end and the end cap fixed connection of head rod, the other end of head rod passes through the through-hole on the link and stretch into the connecting hole and with between the connecting hole form be used for with water and electricity built-in fitting, template support and/or the pretightning force of elevation control support fastening in the template.

3. The fastening device of claim 2, wherein at least a portion of the first connecting rod has an interference fit with the attachment bore.

4. A fastening device according to claim 2 or 3, wherein the periphery of the first connecting rod and/or the inner wall of the connecting hole is provided with anti-slip threads.

5. A fastening device according to claim 2 or 3, wherein the upper end face of the second connecting rod extends beyond the upper surface of the formwork.

6. The fastening device according to claim 2, wherein the first connecting rod is provided with a protrusion having elasticity, and the connecting hole is provided with a groove adapted to the protrusion.

7. A fastening device according to claim 2 or 3, wherein the attachment hole is a blind hole or a through hole.

8. The fastening device according to claim 7, wherein the second connecting rod is provided with threads on its periphery, and the second connecting rod is screwed to the formwork.

9. The fastening device according to claim 7, wherein the second connecting rod is provided at its periphery with a screw thread, and the lower end of the second connecting rod passes through the bottom surface of the die plate and is provided with a nut.

10. The fastening device according to claim 7, wherein the second connecting rod is formed at an upper portion thereof with an enlarged head section, a periphery of the second connecting rod is provided with a screw thread, and a lower end of the second connecting rod passes through a bottom surface of the die plate and is provided with a nut.

11. The fastening device according to claim 7, wherein the second connecting rod is formed at an upper portion thereof with an enlarged head section, and is provided at a periphery thereof with a screw thread, and the second connecting rod is screw-coupled with the mold plate.

12. A fastening arrangement for a removable mounting member for removably attaching the mounting member with an attachment end to a fixing member, wherein the fastening arrangement is as claimed in any one of claims 1 to 11.

13. A high-low span formwork support comprising at least one fixing foot provided with at least one connecting end, characterized in that the connecting end is provided with a fastening device according to any one of claims 1-11.

14. An elevation control support comprising at least one connection end, wherein the connection end is provided with a fastening device according to any one of claims 1-11.