CN212317500U - Fastening device, elevation control support and high-low cross-mold template support - Google Patents

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 is used for installing water and electricity built-in fitting, template support and/or elevation control support on the template, fastener includes first connecting portion and the second connecting portion of interconnect, first connecting portion are connected with the link of water and electricity built-in fitting, template support and/or elevation control support, the second connecting portion is connected with the template fastening, the effort between first connecting portion and the link is less than the effort between second connecting portion and the template; so that at least a part of the structure in the first connecting part can be disconnected from the connecting end and can be firmly connected with the formwork together with the second connecting part when the formwork is removed.

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 cushion blocks and the concrete for building the moulds form a whole, water seepage easily occurs at the cement cushion blocks; meanwhile, the cement cushion block can cause engineering quality problems such as collapse, deviation and deformation of the suspended mould due to treading or impact of pouring concrete.

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 the prior art, a cement mortar cushion block is also commonly used for controlling the thickness of a plate (namely controlling the thickness of a casting plate), and the height of a plastic plate thickness controller is utilized to achieve the purpose of controlling the elevation (the plate thickness).

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.

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 adjustable height screw cap is internally connected with the suspension wire, 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 (connecting lugs) of the fixed feet (support frames) of the elevation control support and the template support are all fixed by screws, rivets, screw rods 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, and the labor intensity is high.

2. If the template support and/or the elevation control support are/is arranged on the aluminum mould by the rivets, the rivets are easy to damage the aluminum mould and/or the elevation control support.

3. 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:

a fastening device for a hydroelectric embedded part, an elevation control support and a high-low cross-mold template support is used for installing the hydroelectric embedded part, the template support and/or the elevation control support on a template, and comprises a first connecting part and a second connecting part which are connected with each other, wherein the first connecting part is connected with the connecting ends of the hydroelectric embedded part, the template support and/or the elevation control support, the second connecting part is connected with the template in a fastening way, and the acting force between the first connecting part and the connecting ends is smaller than the acting force between the second connecting part and the template; so that at least a part of the structure in the first connecting part can be disconnected from the connecting end and can be firmly connected with the formwork together with the second connecting part when the formwork is removed.

In some embodiments, the first connecting portion includes a first connecting rod and an end cover, the end cover is provided with a connecting hole that is mutually matched with the first connecting rod, the first connecting rod passes the connecting end of the hydroelectric embedded part, the formwork support and/or the elevation control support and is mutually matched with the connecting hole of the end cover, the second connecting portion includes a second connecting rod that is mutually connected with the first connecting rod, and the second connecting rod extends into the formwork and is tightly connected with the formwork.

In some embodiments, the first connection portion includes a first connection rod having a cylindrical shape, a circular truncated cone shape, a triangular prism shape, a rectangular shape, or a polygonal prism shape formed by a polygon having four or more sides, or a cross section of the first connection rod is enclosed by at least one straight line segment and at least one arc segment.

In some embodiments, at least a portion of the outer edge of the first connecting rod is mated with the through holes on the connecting ends of the hydroelectric embedment, the formwork support and/or the elevation control support and forms a pre-tightening force with the connecting ends for tightening the formwork support and/or the elevation control support.

In some embodiments, the outer surface of the first connecting rod is provided with one or more of a combination of threads, anti-skid threads, or anti-skid protrusions.

In some embodiments, the second connecting rod is fastened to the formwork by a screw connection, a rivet connection, a snap connection or a screw-nut connection.

In some embodiments, the upper end of the second connecting rod is further connected with an end cap, the bottom of the first connecting rod is connected above the end cap, and the end cap is located on one side of the formwork near the installation of the hydroelectric embedded part, the formwork support and/or the elevation control support when the second connecting rod is installed on the formwork. That is, the second connecting rod is located on the upper surface of the formwork when the end cap is installed.

In some embodiments, the top of the end cap is smaller at the upper end and larger at the lower end. In some embodiments, the top of the end cap is an arc-shaped surface, and the center of the arc-shaped surface faces the lower connecting part. In some embodiments, the top of the end cap is "splayed". In some embodiments, the top of the end cap is frustoconical.

In some embodiments, at least one groove is formed in the second connecting rod along the length direction of the second connecting rod, an elastic buckle is arranged in the groove, the bottom of the elastic buckle is fixedly connected with the groove, and the upper end of the elastic buckle is a free end which is used for abutting against the bottom of the template.

The utility model also provides a fastening device of the detachable mounting piece, which is used for detachably connecting the mounting piece with the connecting end to the fixing piece, and is characterized in that the fastening device comprises a first connecting part and a second connecting part which are connected with each other, the first connecting part is connected with the connecting end of the fixing piece, the second connecting part is fastened and connected with the fixing piece, and the acting force between the first connecting part and the connecting end is less than the acting force between the second connecting part and the fixing piece; so that at least a part of the structure in the first connecting part can be detached from the connecting end and be securely connected with the fixing member together with the second connecting part when the mounting member is removed. 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 fastening device and connecting end, form mounting arrangement of FIG. 10;

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

FIG. 14 is a schematic view of the fastening device and connecting end, form mounting arrangement of FIG. 13;

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

FIG. 16 is a schematic view of the fastening device and connecting end, form mounting arrangement of FIG. 15;

fig. 17 is a schematic view of an installation structure of another embodiment of the fastening device of the present invention with the connecting end and the mold plate;

fig. 18 is a schematic view of another embodiment of the fastening device of the present invention, illustrating the structure of the connecting end and the formwork;

FIG. 19 is a schematic view of another embodiment of the fastening device of the present invention, illustrating the structure of the connecting end and the mold plate;

FIG. 20 is a schematic view of another embodiment of the fastening device of the present invention, illustrating the structure of the connecting end and the formwork;

FIG. 21 is a schematic view of another embodiment of the fastening device of the present invention, illustrating the structure of the connecting end and the mold plate;

fig. 22 is a schematic structural view of an embodiment of an end cap according to the present invention;

fig. 23 is a schematic structural view of another embodiment of the end cap of the present invention;

fig. 24 is a schematic structural view of another embodiment of the end cap 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 101, a first connecting rod 102, an end cover 103, a connecting hole 104, an enlarged head 2, a second connecting part 201, a second connecting rod 202, an end cap 203, threads 204, a fastening nut 205, a rivet head 206, an elastic buckle 207, a groove 3 and a 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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; can be mechanically or electrically connected; 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, according to the thickness of a floor slab, the formwork support with the corresponding height is selected, then, a positioning line pops 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 or a laminated plate) 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 arranged on the upper portion of the fixing foot 01 and is tightly attached to a limiting plate (namely, the concrete forming side hanging formwork 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 risk that the template is damaged by screws, rivets, screws and nails exists in the dismounting process, 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 static friction force among the screws, the rivets, the screw rods, the nails and the form plates needs to be overcome, so that the labor intensity is high when the form is removed.

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.

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 includes interconnect's first connecting portion 1 and second connecting portion 2, first connecting portion 1 is connected with the link 02 of water and electricity built-in fitting, formwork support and/or elevation control support, second connecting portion 2 and formwork fastening connection, effort between first connecting portion 1 and the link 02 is less than the effort between second connecting portion 2 and the template for at least some structures in first connecting portion 1 can break away from the link and follow the second connecting portion when demolising the template and be connected with the template fastening together. The acting force of the utility model is static friction force.

First connecting portion 1 is connected with link 02, that is to say that first connecting portion 1 forms first static frictional force with water and electricity built-in fitting, template support and/or elevation control support's link 02 between, and second connecting portion 2 forms second static frictional force with template fastening connection, because be formed with first static frictional force between first connecting portion 1 and the link 02, first connecting portion 1 and second connecting portion 1 interconnect, second connecting portion 2 and template fastening connection. And the connecting end 02 itself belongs to a part of the hydroelectric embedded part, the formwork support and/or the elevation control support, so that the hydroelectric embedded part, the formwork support and/or the elevation control support are fastened on the formwork through a first static friction force.

After the concrete is poured, the hydropower embedded part, the formwork support and/or the elevation control support are required to be separated from the formwork, namely the formwork is removed, and at least one part of the structure of the first connecting part 1 is separated from the connecting end 02 along with the second connecting part 2 and the formwork because the second static friction force (the second connecting part is fixedly connected with the formwork) of the second connecting part 2 and the formwork is greater than the first static friction force formed by the first connecting part 1 and the connecting end 02.

Because the fastening of water and electricity built-in fitting, template support and/or elevation control support can be finally transmitted to the template through second connecting portion 2, consequently, the effort (being second static friction) itself between second connecting portion 2 and the template can be greater than the effort (being first static friction) between first connecting portion 1 and link 02 and just can fasten water and electricity built-in fitting, template support and/or elevation control support on the template. Therefore, compared with the prior art, the utility model discloses when demolising the template, only need overcome the static friction force (be first static friction force) between first connecting portion 1 and the link 02, can realize the separation between water and electricity built-in fitting, template support and/or the elevation control support and the template. And among the prior art, when dismantling the template, need overcome screw, rivet, screw rod and nail and template between static friction power (being equivalent to the utility model discloses a second static friction power between second connecting portion and the template), consequently, the utility model discloses effort when dismantling the template can be reduced.

The utility model discloses a fastener is when using, compares in prior art because effort when demolising the template is less, has consequently also reduced the risk to the template damage, is convenient for improve template used repeatedly's number of times (has improved the life of template promptly). Meanwhile, after the disassembly, the second connecting part 2 is still tightly connected with the template, the second connecting part 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).

With reference to fig. 11 and 12, in some embodiments, the first connection part 1 includes a first connection rod 101 and an end cover 102, the end cover 102 is provided with a connection hole 103 which is matched with the first connection rod 101, the first connection rod 101 passes through a connection end 02 of the formwork support and/or the elevation control support to be matched with the connection hole 103 of the end cover 102, and since the connection end 02 is provided with a through hole 03, that is, the first connection rod 101 passes through the through hole 03 on the connection end 02 of the hydroelectric embedded part, the formwork support and/or the elevation control support to be matched with the end cover 102; the second connecting part 2 comprises a second connecting rod 201 connected with the first connecting rod 101, and the second connecting rod 201 extends into the formwork and is tightly connected with the formwork. In this embodiment, the second connecting rod 201 is provided with a section of thread 203, the thread 203 is provided with a fastening nut 204, and when the second connecting rod 201 is mounted on the formwork 3, the second connecting rod 201 is fastened and connected to the formwork 3 through the thread 203 and the fastening nut 204. In this embodiment, the static friction between the end cover 02 and the end cap 101 is a first static friction, and the fastening connection between the second connecting rod 201, the thread 203, the fastening nut 204 and the formwork forms a second static friction, so that when the formwork is disassembled, only the acting force (i.e., the first static friction) between the end cover 102 and the end cap 101 needs to be overcome, thereby reducing the labor intensity during formwork disassembly, reducing the damage to the formwork, and prolonging the service life of the formwork. In this embodiment, when the formwork is disassembled, since the first connecting rod 101 and the second connecting rod 201 are connected with each other, the first connecting rod 101 is tightly connected with the formwork together with the second connecting rod 201, so that the first connecting rod 101 is separated from the connecting end 02, and the end cover 102 is not separated from the connecting end 02 together with the first connecting rod 101 due to the blocking of the connecting end 02.

In some embodiments, first connecting rod 101 and second connecting rod 201 are integrally formed. In some embodiments, the first connecting rod 101 and the second connecting rod 201 are fixedly connected to form a unitary structure.

With reference to fig. 11 and 12, when the fastening device of this embodiment is used for fastening a hydroelectric embedded part and an elevation control bracket, since the elevation control bracket (including the fixing pin 01 and the connecting end 02) is embedded in concrete and forms an integral structure with the concrete, when a formwork (formwork) is removed, the first connecting rods 101 and the connecting ends 02 are separated from each other and fastened with the formwork together with the second connecting rods 201, so that when the formwork 3 is removed, the bottom surface of the concrete does not have the exposed first connecting rods 101, and thus the first connecting rods 101 do not need to be cut and polished. Consequently compare in prior art, reduced the work step of cutting and polishing screw, rivet screw rod and nail, simultaneously because the reduction of effort when form removal can reduce the risk of template damage concrete. And because do not need cutting and polish, consequently can prevent to be compared in prior art because the problem of cutting and the construction damage concrete of polishing, further improve concrete shaping quality. And because high-altitude cutting, polishing and repairing are not needed, the potential safety hazard is also reduced.

With reference to fig. 13 and 14, the embodiment differs from the embodiment shown in fig. 11 and 12 in that the second connecting rod 201 is full of threads 203, and forms a fastening connection with the formwork 3 directly through the threads 203, and the threaded connection between the second connecting rod 201 and the formwork 3 forms a second static friction force.

With reference to fig. 15 and 16, the embodiment is different from the embodiment shown in fig. 11 and 12 in that in the embodiment, the second connecting rod 201 is full of threads 203, and a rivet 205 is connected to the bottom of the second connecting rod 201, the second connecting rod 201 is fastened to the form 3 by the threaded connection and the riveting of the rivet 205, and in the embodiment, the threaded connection between the second connecting rod 201 and the form 3 and the riveting between the rivet 205 and the form 3 jointly form a second static friction force between the second connecting portion 2 and the form 3.

Combine fig. 17, the utility model discloses a fastening connection of combined mode reality and template 3 that can also set up elastic buckle 206 and screw thread 203 through the lower extreme at the second connecting rod between second connecting rod 201 and the template 3, at least one recess 207 has been seted up along vertical direction on the second connecting rod 206, be provided with elastic buckle 206 in the recess 207, the bottom and the recess fixed connection of elastic buckle 206, elastic buckle's upper end is for being used for realizing the free end that offsets with the bottom of template 3. In this embodiment, the second connecting rod 201, the thread 203 and the elastic catch 206 together form a second static friction between the second connecting portion 2 and the template 3.

Therefore, the utility model discloses a can be through any one or more combination in threaded connection, riveting, buckle connection or the screw-nut between second connecting rod 201 and the template 3 for realize the fastening connection between second connecting portion 2 and the template 3.

With reference to fig. 18 and 19, in some embodiments, the upper end of the second connecting rod 201 is further connected to an end cap 202, the bottom of the first connecting rod 101 is connected to the top of the end cap 202, and the end cap 202 is located at the upper end surface of the formwork when the second connecting rod 201 is installed, that is, when the second connecting rod 201 is installed, the end cap is located at one side of the formwork close to the hydroelectric embedded part, the elevation control bracket or the formwork bracket. In the embodiment of fig. 18, the second connecting rod 201, the thread 203, the fastening nut 204, the end cap and the formwork 3 together form a force (i.e. a second static friction) between the second connecting portion 2 and the formwork 3. In the embodiment of fig. 19, second connecting rod 201, threads 203, end cap 202 together form the force between second connecting portion 2 and formwork 3. Can enough improve the fastening nature of second connecting portion 2 and formwork erection through the design of end cap 202, end cap 202 can also regard as the holding surface of link 02 simultaneously, is convenient for provide a smooth level plane for link 02, that is to say that end cap 202 can regard as the installation face of link 02, the installation of the water and electricity built-in fitting of being convenient for, formwork support and/or elevation control support.

In some embodiments, the second connecting bar and the end cap may be integrally formed. In some embodiments, the second connecting rod and the end cap may be fixedly connected to form an integral structure.

In some embodiments, the top of the end cap 202 is smaller at the top and larger at the bottom. In some embodiments, the top of the end cap is an arc-shaped surface, and the center of the arc-shaped surface faces the lower connecting part. In some embodiments, the top of the end cap is "splayed". In some embodiments, the top of the end cap is frustoconical. In some embodiments, the top of the end cap may have a trapezoidal shape with a smaller upper end and a larger lower end.

With reference to fig. 18 and 19, when the fastening device of this embodiment is used for mounting and fastening a hydroelectric embedded part and an elevation control bracket, since the end cap 202 is embedded in concrete, in order to prevent the end cap 202 from damaging the concrete when being separated from the concrete, the upper surface of the end cap 202 is configured as an arc-shaped surface, and the center of the arc-shaped surface is configured downward (the center of the arc-shaped surface is toward the second connecting portion 2 and away from the first connecting portion 1).

In some embodiments, the first connection portion 1 includes a first connection rod 101 having a cylindrical shape, a circular truncated cone shape, a triangular prism shape, a rectangular shape, or a polygonal prism shape formed by a polygon with four or more sides, or a cross section enclosed by at least one straight line segment and at least one arc segment. That is, the external shape structure of the first connecting rod may be various as long as the connecting end 02 can be fastened by the first static friction force formed between the end cap and the first connecting rod 101.

In the above embodiment, the fastening means of the hydroelectric embedment, the formwork support and/or the elevation control support is used in the following manner: firstly, determining the position of a formwork support and/or an elevation control support according to construction needs, then, forming a hole in the formwork according to the determined position, fixedly mounting a lower connecting part 2 on the formwork, then, sleeving a through hole 03 of a connecting end 02 on a hydroelectric embedded part, the formwork support and/or the elevation control support on a first connecting rod 101 on the upper connecting part 2, and then, sleeving an end cover 102 on the first connecting rod 101 to fixedly mount the hydroelectric embedded part, the formwork support and/or the elevation control support on the formwork 3.

In some embodiments, at least a portion of the outer edge of the first connecting rod 1 and the through hole 03 on the connecting end 02 of the hydroelectric embedded part, the formwork support and/or the elevation control support are fitted to each other to form a pre-tightening force for fastening the hydroelectric embedded part, the formwork support and/or the elevation control support. That is, in some embodiments, the first connecting rod 101 may be provided without an end cap, and the fastening of the hydroelectric embedment, the formwork support, and/or the elevation control support is achieved only by the static friction between the outer edge of the first connecting rod and the through hole 03 on the connecting end 02. With reference to fig. 20 and 21, in some embodiments, the first connection portion 1 of the present invention may also include only the first connection rod 101, and the first connection rod 101 is attached to the through hole 03 of the connection end 02, so as to fasten the formwork support and/or the elevation control support. In the attached drawing 20, the first connecting rod 101 is a circular truncated cone-shaped structure with a large upper end and a lower end, the second connecting rod 2 is provided with threads, when the die is installed, the first connecting rod 2 and the second connecting rod sequentially penetrate through a through hole 03 of the connecting end 02 along the direction from top to bottom and extend into the die plate, the first connecting rod 101 forms a first static friction force between the first connecting portion 1 and the connecting end 02 through a static friction force between the outer edge of the first connecting rod and the through hole 03, the second connecting rod 201 and the die plate 3 form a second static friction force between the second connecting portion 2 and the die plate 3 through threaded connection, and when the die is disassembled, the top of the first connecting rod 101 penetrates through the through hole 03 of the connecting end 02 and still is tightly connected with the die plate along with the second connecting rod 201.

In fig. 21, the first connecting rod 101 and the second connecting rod 201 are integrally in a truncated cone-shaped structure with a large upper end and a small lower end, the first connecting rod 101 forms a first static friction force between the first connecting portion 1 and the connecting end 02 through a static friction force between the outer edge of the first connecting rod and the through hole 03, the second connecting rod 201 forms a second static friction force between the second connecting portion 2 and the formwork 3, and when the formwork is disassembled, the top of the first connecting rod 1 penetrates through the through hole 03 of the connecting end 02 and still is fixedly connected with the formwork along with the second connecting rod 201.

In the above embodiment, the outer surface of the first connecting rod 101 is provided with one or more of a combination of threads, anti-slip threads, or anti-slip protrusions, so as to improve the static friction between the first connecting part 1 and the connecting end 02.

With reference to fig. 22, 23 and 24, the connecting hole 103 on the end cover 102 of the present invention may be a blind hole or a through hole, in fig. 22, the connecting hole on the end cover 102 is a blind hole, and in fig. 23 and 24, the connecting hole on the end cover 102 is a through hole.

With reference to fig. 12 and fig. 24, the external dimension of the end cap 102 of the present invention may be larger than the size of the through hole 03 on the connection end 02, and the external dimension of the end cap may also be partially larger than the size of the through hole 03 on the connection end 02. Referring to fig. 12, the end caps 102 have a size larger than that of the through-holes 03, so that the end caps 102 cover the through-holes 03. Referring to fig. 24, the lower end of the end cap is smaller than the through hole 03, and the upper part of the end cap 102 has an enlarged head 104 which is larger than the through hole, and in this embodiment, when the end cap is in use, the lower end of the end cap extends into the through hole 03, and the enlarged head 104 at the top of the end cap 102 covers the through hole 03.

Referring to fig. 25 and 26, 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, bolts or nails, however, when a user subsequently installs a controller, a switch, and changes a circuit or performs maintenance and replacement in the control box, the control box is inconvenient to operate due to the fact that the size and the space of the control box are 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 reserved control box is not easy to be re-perforated, and therefore the problem that the subsequent installation of the re-control box is unstable exists.

With reference to fig. 25 and 26, the present invention further provides a fastening device for a control box for a building, the fastening device includes a first connecting portion 1 and a second connecting portion 2 connected to each other, the first connecting portion 1 is connected to the connecting end 02 of the control box, the second connecting portion 2 is connected to the building body, and an acting force between the first connecting portion 1 and the connecting end 02 is smaller than an acting force between the second connecting portion 2 and the building body; so that at least a part of the structure in the first connector 1 can be separated from the connection end 02 and tightly connected with the building body 013 along with the second connector 2 when the control box 014 is removed. 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. When the utility model discloses a fastener is used for installing the control box on building body 013, the preferred mode that adopts threaded connection of second connecting portion 2 and building body 013 to in the convenience of improvement installation.

The utility model also provides a fastening device of the detachable mounting piece, which is used for detachably connecting the mounting piece with the connecting end to the fixing piece, the fastening device comprises a first connecting part 1 and a second connecting part 2 which are connected with each other, the first connecting part 1 is connected with the connecting end 02 of the fixing piece, the second connecting part 2 is fastened and connected with the fixing piece, and the acting force between the first connecting part 1 and the connecting end 02 is less than the acting force between the second connecting part 2 and the fixing piece; so that at least a part of the structure in the first connecting part 1 can be detached from the connecting end 02 and be securely connected to the fixing piece together with the second connecting part 2 when the mounting is removed. The structure of the fastening device has been described in detail above and will not be described in detail here. The fastening device of the detachable mounting member of the present invention may adopt any one of the fastening device structures described above.

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.

In some embodiments, when the second connection rod 201 of the second connection portion 2 can penetrate through the fixing member, the second connection rod 201 of the second connection portion 2 and the fixing member may be connected by a screw, a snap, a rivet, a weld, or a screw and nut, so that the second connection portion 2 and the fixing member are tightly connected; when the second connecting rod 201 of the second connecting portion 2 cannot penetrate through the fixing member, the second connecting rod of the second connecting portion 2 and the fixing member may be connected by threads, or bonded to each other, so as to improve the convenience of installation.

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 and the elevation control support can be made of steel bars or plastic.

In some embodiments, the fastening devices provided on the connection end 02 may be integrated by a connection rod.

Referring to fig. 1, 4 fixing legs 01 are provided on the formwork support of fig. 1, and each fixing leg 01 is provided with a connecting end 02, that is, 4 connecting ends 02 of the formwork support are provided with 4 fastening devices, and the 4 fastening devices can be connected into a whole structure, for example, 4 second connecting rods 201 of the 4 fastening devices are connected together through connecting rods so that the 4 fastening devices form a whole structure, or 4 first connecting rods 101 of the 4 fastening devices are connected together through connecting rods so that the 4 fastening devices form a whole structure.

Referring to fig. 2, 3 fixing legs are provided on the formwork support in fig. 2, and each fixing leg 01 is provided with a connecting end 02, that is, 3 connecting ends 02 of the formwork support are provided with 3 fastening devices, and the 3 fastening devices can be connected to each other to form an integral structure, for example, 3 first connecting rods 101 of the 3 fastening devices are connected to each other through connecting rods to form an integral structure by the 3 fastening devices.

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 (9)

1. A fastening device is used for installing a hydroelectric embedded part, a template support and/or an elevation control support on a template and is characterized by comprising a first connecting part and a second connecting part which are connected with each other, wherein the first connecting part is connected with the connecting ends of the hydroelectric embedded part, the template support and/or the elevation control support, the second connecting part is connected with the template in a fastening way, and the acting force between the first connecting part and the connecting ends is smaller than the acting force between the second connecting part and the template; so that at least a part of the structure in the first connecting part can be disconnected from the connecting end and can be firmly connected with the formwork together with the second connecting part when the formwork is removed.

2. The fastening device of claim 1, wherein the first connecting portion comprises a first connecting rod and an end cap, the end cap being provided with connecting holes that interfit with the first connecting rod, the first connecting rod passing through the connecting ends of the hydroelectric embedment, the formwork support and/or the elevation control support interfit with the connecting holes of the end cap, the second connecting portion comprising a second connecting rod that interconnects with the first connecting rod, the second connecting rod extending into the formwork and being fixedly connected with the formwork.

3. The fastening device according to claim 1 or 2, wherein the first connecting portion comprises a first connecting rod having a cylindrical shape, a circular truncated cone shape, a triangular prism shape, a rectangular shape, or a polygonal prism shape formed by a polygon having four or more sides, or a cross section surrounded by at least one straight line segment and at least one arc segment.

4. The fastening device of claim 3, wherein at least a portion of the outer edges of the first connecting rods cooperate with the through holes on the connecting ends of the hydroelectric embedment, the formwork support and/or the elevation control support and form a pre-load with the connecting ends for fastening the hydroelectric embedment, the formwork support and/or the elevation control support.

5. A fastening device according to claim 3, wherein the outer surface of the first connecting rod is provided with one or more combinations of threads, anti-skid threads or anti-skid protrusions.

6. The fastening device of claim 2, wherein the upper end of the second connecting rod is further connected with an end cap, the bottom of the first connecting rod is connected above the end cap, and the end cap is located on the side of the formwork near the installation of the hydroelectric embedment, formwork support and/or elevation control support when the second connecting rod is installed on the formwork.

7. The fastening device of claim 2, wherein the upper end of the second connecting rod is further connected with an end cap, the bottom of the first connecting rod is connected above the end cap, and the end cap is located on the side of the formwork near the installation of the hydroelectric embedment, formwork support and/or elevation control support when the second connecting rod is installed on the formwork.

8. 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 1-7.

9. 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 to 7.

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