CN216641434U - PCF board connecting device and prefabricated part - Google Patents

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a PCF plate connecting device and a prefabricated part. The PCF board connecting device includes: the embedded part comprises a screw; the elastic plug is provided with a first through hole and sleeved at the end part of one end of the screw rod, and the outer diameter of one end, far away from the screw rod, of the elastic plug is larger than that of one end, close to the screw rod, of the elastic plug; one end of the connecting nut is in threaded connection with the screw rod through the first through hole; and the connecting piece is in threaded connection with the other end of the connecting nut. The embedded part can be directly fixed in the PCF plate, and a through hole does not need to be reserved on the PCF plate, so that water seepage and cold bridges are avoided, and the influence on the later-stage service performance of the component is reduced; the connecting device only needs to be constructed in the floor, and does not need to stand on an outer frame outside the PCF plate for construction, so that the safety of operators is guaranteed.

Description

PCF board connecting device and prefabricated part

Technical Field

The utility model relates to the technical field of constructional engineering, in particular to a PCF plate connecting device and a prefabricated part.

Background

In recent years, the countries have vigorously developed fabricated buildings, and the prefabricated PCF plates are mainly applied to the edge components and other parts of the fabricated concrete buildings, and the structural forms of the PCF plates are single-face superposition and outer blade plate prefabrication. Once the PCF board is in place, temporary fixing and adjustment measures are usually needed on the outside.

During traditional PCF board construction, generally through reserving the penetrability hole in advance, penetrate the split bolt in the hole, the split bolt is connected with the wooden model system of cast-in-place structure edge post, accomplishes PCF board construction. The gap between split bolt and the hole needs the shutoff, appears the gap easily, and cast in situ concrete also appears the gap easily with the faying face combination infirm of split bolt, and then appears the infiltration hidden danger easily, and the split bolt is heat transmission's bridge, is the cold bridge to the split bolt promptly, and thermal-insulated effect is poor, influences the performance in component later stage.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a PCF plate connecting device and a prefabricated part, and aims to solve the problems that in the prior art, a penetrating hole is reserved on a PCF plate, water seepage occurs, and a cold bridge hidden danger component is waterproof and heat-insulating.

In order to achieve the above object, the present invention provides a PCF board connection device, comprising: the embedded part comprises a screw; the elastic plug is provided with a first through hole and sleeved at the end part of the other end of the screw rod, and the outer diameter of one end of the elastic plug, which is far away from the screw rod, is larger than that of one end of the elastic plug, which is close to the screw rod; one end of the connecting nut is in threaded connection with the screw rod through the first through hole; and the connecting piece is in threaded connection with the other end of the connecting nut.

Optionally, the connecting piece includes connecting bolt and second connecting plate, and connecting bolt and coupling nut's the other end threaded connection, and the one pot head of second connecting plate is located on connecting bolt for connecting bolt can be with the one end of second connecting plate and coupling nut locking, and the second connecting plate other end sets up the fixed orifices.

Optionally, the embedded part further comprises a connecting seat, and the other end of the screw is fixedly connected with the connecting seat.

Optionally, the connecting piece includes integrated into one piece's connecting bolt and a horn section of thick bamboo, and the external diameter of the one end that the connecting bolt was kept away from to the horn section of thick bamboo is greater than its external diameter that is close to the one end of connecting bolt, and a plurality of fixed orificess of equipartition on the horn section of thick bamboo.

Optionally, the outer end face of the coupling nut does not extend beyond the outer end face of the elastomeric plug.

Optionally, the connecting seat is first connecting plate, or, the connecting seat is the connecting rod that is the style of calligraphy, and the connecting rod is the contained angle setting with the screw rod, and perhaps, the connecting seat is the cross pole.

Optionally, the outer wall of the coupling nut and the inner wall of the resilient plug are provided with locking structures to lock the position of the resilient plug.

Optionally, the locking structure includes a locking protrusion and a locking groove, the locking protrusion is disposed on an outer wall of the coupling nut, the locking groove is disposed on a hole wall of the elastic plug, the locking protrusion is insertable into the locking groove, or the locking protrusion is disposed on the hole wall of the elastic plug, the locking groove is disposed on the outer wall of the coupling nut, the locking protrusion is insertable into the locking groove, or the locking structure includes an external thread and an internal thread, the external thread is disposed on the outer wall of the coupling nut, the internal thread is disposed on an inner wall of the elastic plug, and the internal thread is connected with the external thread.

Optionally, the first through hole includes the straight hole section, first step face and the taper hole section that connect gradually, the aperture of straight hole section is less than the minimum aperture of taper hole section, the aperture of taper hole section is crescent to the other end from its one end that is close to the straight hole section, coupling nut includes first section and second section, the external diameter of first section is less than the external diameter of second section, first section accessible straight hole section is connected with the elastic plug, the cooperation of the second step face that forms between first section of column and the second section of elastic plug accessible first step face to restriction elastic plug's removal.

Optionally, the length of the straight hole section is less than the length of the tapered hole section in the axial direction of the straight hole section, the length of the first column section is less than or equal to the length of the straight hole section, and the length of the second column section is less than or equal to the length of the tapered hole section in the axial direction of the tapered hole section.

Optionally, the connecting nut has a first threaded hole and a second threaded hole, the first threaded hole is connected with the screw rod, the second threaded hole is connected with the connecting bolt, and the first threaded hole and the second threaded hole may be communicated or not communicated.

The utility model also provides a prefabricated part, which comprises a steel reinforcement framework and a PCF plate, and also comprises:

the embedded part comprises a screw, wherein one end of the screw is fixedly connected with the steel reinforcement framework; the elastic plug is provided with a first through hole and sleeved at the end part of the other end of the screw rod, and the outer diameter of one end of the elastic plug, which is far away from the screw rod, is larger than that of one end of the elastic plug, which is close to the screw rod; one end of the connecting nut is in threaded connection with the screw rod through the first through hole; and the connecting piece is in threaded connection with the other end of the connecting nut.

The utility model also provides another prefabricated part, which comprises a steel reinforcement framework and a PCF plate, and further comprises:

the embedded part comprises a screw and a connecting seat, wherein one end of the screw is fixedly connected with the connecting seat, and the connecting seat is embedded in the PCF plate; the elastic plug is provided with a first through hole and is sleeved at the end part of the other end of the screw rod, and the outer diameter of one end of the elastic plug, which is far away from the connecting seat, is larger than that of one end of the elastic plug, which is close to the connecting seat; one end of the connecting nut is in threaded connection with the screw rod through the first through hole; and the connecting piece is in threaded connection with the other end of the connecting nut.

The technical scheme of the utility model has the following advantages: the embedded part can be fixed in the PCF plate, the elastic plug is sleeved at the end part of the other end of the screw rod, one end of the connecting nut is in threaded connection with the screw rod through the first through hole, the connecting piece penetrates through the setting template and is in threaded connection with the other end of the connecting nut after the PCF plate and the setting template are installed, then one end of the fixing part is connected with the connecting piece, the other end of the fixing part is fixed on the construction plate, the embedded part and the setting template can be connected together through the connecting device, the embedded part is directly fixed in the PCF plate, no penetrating hole needs to be reserved on the PCF plate, water seepage and cold bridge are avoided, and the influence on the later-stage service performance of the component is reduced; and the connecting device only needs to be constructed in the floor, and does not need to stand on an outer frame outside the PCF plate for construction, thereby ensuring the safety of operators. The connecting nut and the embedded part and the connecting piece and the connecting nut are connected in a detachable threaded connection mode, so that the operation is simple, the construction is fast, and the construction period is shortened.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of a first embodiment of a PCF board connection apparatus of the present invention;

FIG. 2 shows an exploded view of the PCF board connection of FIG. 1;

FIG. 3 shows a perspective view of a coupling nut of the PCF board connection of FIG. 1;

FIG. 4 shows a perspective schematic view of the coupling nut of FIG. 3;

fig. 5 shows a schematic perspective view of the elastomeric plug of the PCF board connection arrangement of fig. 1;

FIG. 6 shows a perspective schematic view of the elastomeric plug of FIG. 5;

fig. 7 shows a schematic perspective view of a second connection plate of the PCF board connection device of fig. 1;

FIG. 8 is a schematic perspective view of an embedment of the PCF board attachment of FIG. 1 mated with a PCF board;

FIG. 9 is a partial perspective view of the embedment, the elastic plug, and the coupling nut of the PCF board coupling device of FIG. 1 mated with a PCF board;

FIG. 10 is a perspective view of the PCF board attachment of FIG. 1 in cooperation with a PCF board, a sizing die plate, and diagonal braces;

FIG. 11 is a partial schematic view of the PCF board attachment of FIG. 10 in cooperation with the PCF board, the sizing die plate, and the diagonal braces;

FIG. 12 is a schematic partial perspective view showing the mating of embedments of the PCF board attachment of FIG. 10 with a PCF board, a sizing die plate, and diagonal braces;

FIG. 13 is a perspective view of the embedment of the PCF plate attachment of FIG. 10 mated with a PCF plate, cast-in-place concrete slab;

FIG. 14 shows a partial schematic view of the embedment mating with a PCF plate, cast-in-place concrete slab of the PCF plate attachment of FIG. 13;

fig. 15 is a schematic perspective view showing an embedment of a second embodiment of the PCF board connection device of the present invention;

FIG. 16 is a schematic perspective view of the embedment of FIG. 15 mated with the rebar skeleton of a PCF slab;

FIG. 17 shows a perspective schematic view of a coupling nut of a third embodiment of the PCF board attachment of the present invention;

FIG. 18 shows a perspective schematic view of a coupling nut of the fourth embodiment of the PCF board attachment of the present invention;

fig. 19 is a perspective view showing a second connection plate of a fifth embodiment of the PCF board connection device of the utility model;

FIG. 20 is a perspective view of the PCF board attachment of FIG. 19 in cooperation with a PCF board, a sizing die plate, and diagonal braces;

FIG. 21 shows a partial perspective view of the PCF board attachment of FIG. 20 mated with a diagonal brace;

FIG. 22 shows an exploded perspective view of the PCF board attachment, diagonal brace of FIG. 21;

fig. 23 is a perspective view showing a connection member of a sixth embodiment of the PCF board connection device of the present invention;

FIG. 24 shows a front view of the connector of FIG. 23;

fig. 25 shows a partial perspective view of the PCF board connection device of fig. 23 mated with a diagonal brace.

Description of reference numerals:

10. embedding parts; 11. a first connecting plate; 12. a screw; 13. a cross bar; 20. an elastic plug; 21. a first through hole; 211. a straight hole section; 2111. a locking groove; 212. a first step surface; 213. a tapered bore section; 30. connecting a nut; 31. a first column section; 311. a locking projection; 32. a second column section; 33. a first threaded hole; 34. a second threaded hole; 40. a connecting bolt; 50. a second connecting plate; 51. a vertical plate section; 511. a second through hole; 52. a ramp section; 521. a fixing hole; 60. a PCF board; 61. vertical reinforcing steel bars; 62. horizontal reinforcing steel bars; 70. shaping the template; 80. a fixing member; 81. a splint; 90. a fastening member; 100. a horn.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

As shown in fig. 1, 2 and 8, the PCF board connection device of the present embodiment includes: the embedded part 10 is embedded in the PCF plate 60 and comprises a screw 12, wherein one end of the screw 12 can be directly and fixedly connected with a steel bar framework, and the connection mode can be welding or binding and the like; the elastic plug 20 is provided with a first through hole 21 and sleeved at the end part of the other end of the screw 12, and the outer diameter of one end of the elastic plug 20, which is far away from the screw 12, is larger than that of one end of the elastic plug, which is close to the screw 12; one end of the connecting nut 30 is in threaded connection with the screw 12 through the first through hole 21; the connecting piece penetrates through the shaping template 70 and is in threaded connection with the other end of the connecting nut 30; further, a fixing member 80 may be further included, and one end of the fixing member 80 is connected to the connector and the other end is fixed to the construction board. Furthermore, the PCF board can further comprise a connecting seat, one end of the screw 12 can be fixedly connected with the connecting seat, and the connecting seat is embedded in the PCF board. Furthermore, the embedded part can be fixed in the PCF plate of the prefabricated part in a welding, binding or pre-embedding mode, so that two prefabricated parts are formed, wherein one prefabricated part is in a mode that the embedded part is directly fixed on the steel reinforcement framework, and the other prefabricated part is in a pre-embedding mode through the connecting seat.

By applying the PCF board connecting device of the embodiment, the embedded part 10 is embedded in the PCF board, then the elastic plug 20 is sleeved at the end part of the other end of the screw 12, one end of the connecting nut 30 is in threaded connection with the screw 12 through the first through hole 21, after the PCF board 60 and the shaped template 70 are installed, the connecting part penetrates the shaped template 70 to be in threaded connection with the other end of the connecting nut 30, then one end of the fixing part 80 is connected with the connecting part and the other end is fixed on the construction board, the embedded part 10 and the shaped template 70 can be connected together through the connecting device, the embedded part 10 is directly embedded in the PCF board, and a penetrating hole does not need to be reserved on the PCF board, so that water seepage and cold bridge are avoided, and the influence on the later-stage use performance of the component is reduced; and the connecting device only needs to be constructed in the floor, and does not need to stand on an outer frame outside the PCF plate for construction, thereby ensuring the safety of operators. The connecting nut 30 is connected with the embedded part 10 and the connecting piece is connected with the connecting nut 30 in a detachable threaded connection mode, so that the operation is simple, the construction is fast, and the construction period is shortened.

It should be noted that the connecting member is connected to one end of the fixing member 80, the other end of the fixing member 80 is fixed to a construction board, the construction board is a floor or a foundation slab, and the PCF board 60 and the shaping template 70 are fixed by a connecting device.

In this embodiment, the connecting member includes a connecting bolt 40 and a second connecting plate 50, the connecting bolt 40 is in threaded connection with the other end of the connecting nut 30, one end of the second connecting plate 50 is sleeved on the connecting bolt 40, so that the connecting bolt 40 can lock one end of the second connecting plate 50 with the connecting nut 30, and further the second connecting plate 50 can rotate and be locked at any angle, and the other end of the second connecting plate 50 is provided with a fixing hole 521. When the connecting piece is installed, the connecting bolt 40 penetrates through the second connecting plate 50 and the shaping template 70 to be in threaded connection with the other end of the connecting nut 30, and then the PCF plate and the shaping template 70 are connected together.

In the present embodiment, as shown in fig. 7 and 11, the second connecting plate 50 includes a vertical plate section 51 and a tilted plate section 52 connected to each other, the tilted plate section 52 is disposed to be tilted downward with respect to the vertical plate section 51 toward a direction away from the connecting nut 30, the vertical plate section 51 is provided with a second through hole 511 through which the connecting bolt 40 passes, and the fixing hole 521 is disposed on the tilted plate section 52. Wherein the securing member 80 is a diagonal brace and the ramp section 52 facilitates engagement with the diagonal brace. The upper end of the diagonal support has a hook, the free end of which passes through the fixing hole 521 so that the hook is hooked on the diagonal plate section 52. Specifically, the surface of the diagonal plate segment 52 is at an obtuse angle to the surface of the vertical plate segment.

In this embodiment, as shown in fig. 3, 5 and 12, the outer end surface of the connection nut 30 does not exceed the outer end surface of the elastic plug 20, so that one end of the connection nut 30, which is far away from the connection seat, does not contact with concrete, and the connection nut 30 and the elastic plug 20 are convenient to detach after the concrete is solidified, and the connection nut 30 and the elastic plug 20 can be reused, thereby saving cost.

Preferably, the outer end face of the elastomeric plug 20 is in the same plane as the outer end face of the coupling nut 30. The shaping template 70 is attached to the outer end face of the elastic plug 20 and the outer end face of the connecting nut 30, so that the outer end faces of the elastic plug 20 and the connecting nut 30 are flush with the outer vertical face of post-cast concrete, the mounting precision of the template is guaranteed, and the pouring thickness of a wall body is guaranteed; the position of the shaping template is adjusted by adjusting the screwing of the connecting nut 30 into the distance, so that the pouring thickness of the wall body is controlled; after the concrete between the PCF plate 60 and the sizing die plate 70 is solidified, the second connecting plate 50, the connecting bolt 40, the connecting nut 30 and the elastic plug 20 can be detached, and the second connecting plate 50, the connecting bolt 40, the connecting nut 30 and the elastic plug 20 can be reused, so that the cost is saved. It will be appreciated that in other embodiments, the outer end face of the elastomeric plug 20 extends beyond the outer end face of the coupling nut 30.

In this embodiment, the outer diameter of the end of the elastic plug 20 away from the connection seat is larger than the outer diameter of the end of the elastic plug 20 close to the connection seat, and at this time, the elastic plug 20 is tapered, so that the connection nut 30 is convenient to install.

In this embodiment, the connection sockets are pre-embedded in concrete in the PCF board 60. It is understood that in other embodiments, the docking station is connected to the reinforcement cage in the PCF board 60, the docking station is welded to the reinforcement cage in the PCF board 60, or the docking station and the reinforcement cage in the PCF board 60 are bound together by binding wires

Specifically, as shown in fig. 1, the connecting seat is a first connecting plate 11, and the contact area between the first connecting plate 11 and the concrete is large, so that the anchoring strength is increased. Preferably, the first connecting plate 11 is not connected with the steel reinforcement framework of the PCF plate, and when the PCF plate is produced, the first connecting plate 11 is directly anchored with the concrete after the concrete is poured. It is understood that in other embodiments, the first connection plate 11 is welded to the steel skeleton of the PCF plate.

In the present embodiment, as shown in fig. 3 and 6, a locking structure is provided between the outer wall of the coupling nut 30 and the inner wall of the elastic plug 20 to fix the position of the elastic plug 20 and prevent the coupling nut 30 and the elastic plug 20 from moving axially. Preferably, the locking structure includes a locking protrusion 311 and a locking groove 2111, the locking protrusion 311 is provided on an outer wall of the coupling nut 30, the locking groove 2111 is provided on a hole wall of the elastic plug 20, and the locking protrusion 311 is inserted into the locking groove 2111. The locking protrusion 311 and the locking groove 2111 cooperate to limit the axial movement and rotation of the elastic plug 20, so as to prevent the elastic plug 20 from axially shifting and rotating; the projections and the grooves are simple in structure and convenient to process and manufacture. It is understood that in other embodiments, the locking protrusion 311 is provided on the hole wall of the elastic plug 20, the locking groove 2111 is provided on the outer wall of the coupling nut 30, and the locking protrusion 311 is inserted into the locking groove 2111, or the locking structure includes an external thread provided on the outer wall of the coupling nut 30 and an internal thread provided on the inner wall of the elastic plug 20, and the internal thread is coupled with the external thread.

In this embodiment, as shown in fig. 3 to 6, the first through hole 21 includes a straight hole section 211, a first step surface 212, and a tapered hole section 213 connected in sequence, an aperture of the straight hole section 211 is smaller than a minimum aperture of the tapered hole section 213, an aperture of the tapered hole section 213 gradually increases from an end thereof close to the straight hole section 211 to the other end, the coupling nut 30 includes a first column section 31 and a second column section 32, an outer diameter of the first column section 31 is smaller than an outer diameter of the second column section 32, the first column section 31 can be connected to the elastic plug 20 through the straight hole section 211, the elastic plug 20 can be engaged with a second step surface formed between the first column section 31 and the second column section 32 through the first step surface 212, axial movement of the elastic plug 20 can be further limited, and the second column section 32 is located in the tapered hole section 213. Preferably, the elastic plug 20 is made of rubber, sponge, or the like.

In this embodiment, the length of straight hole section 211 is less than the length of taper hole section 213 along its axial, the length of first column section 31 is less than or equal to the length of straight hole section 211, make the interior terminal surface of coupling nut 30 not exceed the interior terminal surface of elastic plug 20, coupling nut 30 is little with the area of contact of concrete, conveniently dismantle coupling nut, the length less than or equal to taper hole section 213 of second column section 32 is along its axial length, and then make coupling nut 30 outer terminal surface not exceed the outer terminal surface of elastic plug 20, and then make coupling nut 30 keep away from the one end of connecting seat can not contact with concrete, be convenient for dismantle coupling nut 30 and elastic plug 20 after the concrete sets. It is understood that in other embodiments, the length of the straight bore section 211 is equal to or greater than the length of the tapered bore section 213 along its axial direction.

In this embodiment, the connection nut 30 has a first threaded hole 33 and a second threaded hole 34, the first threaded hole 33 is connected with the screw 12, the second threaded hole 34 is connected with the connection bolt 40, the first threaded hole 33 is not communicated with the second threaded hole 34, the screwing-in depth can be controlled by means of the partition between the first threaded hole 33 and the second threaded hole 34, and the positioning is performed for the installation of the shaped formwork, so that the wall casting thickness is ensured.

Example two

As shown in fig. 15 and 16, the PCF board connecting device of the second embodiment is different from the PCF board connecting device of the first embodiment in the structure of the connecting socket, in the second embodiment, the connecting socket is a cross bar 13, the cross bar 13 is used for connecting with the steel framework of the PCF board 60, and the connecting way is simple.

It should be noted that the PCF board includes the framework of steel reinforcement, and the framework of steel reinforcement includes vertical reinforcing bar 61 and horizontal reinforcing bar 62, and the cross bar 13 cooperates with the cross of vertical reinforcing bar 61 and horizontal reinforcing bar 62, and the horizontal pole of cross bar 13 is laminated with the top of this horizontal reinforcing bar 62, and the vertical pole of cross bar 13 is laminated with one side of this vertical reinforcing bar 61.

Preferably, the cross bar 13 is welded with the steel reinforcement framework, and the fixing mode is more convenient. Specifically, the cross bar 13 is spot-welded to the reinforcing cage. It will be appreciated that in other embodiments the cross bar is tied to the rebar grid by tie wires, or the cross bar is anchored directly to the concrete.

As an alternative embodiment, the connecting base is a connecting rod in a straight line shape, and the connecting rod is disposed at an angle to the screw 12. Preferably, the connecting rods and the threaded rods 12 are arranged vertically, i.e., the embedment 10 is T-shaped.

EXAMPLE III

As shown in fig. 17, the PCF board connection device of the third embodiment is different from the first embodiment in the structure of the connection nut 30, in the third embodiment, the first threaded hole 33 is communicated with the second threaded hole 34, the diameter of the first threaded hole 33 is larger than that of the second threaded hole 34, the first threaded hole 33 and the second threaded hole 34 form a stepped hole, and the stepped hole can control the screwing depth to position the installation of the sizing form, thereby ensuring the casting thickness of the wall.

Example four

As shown in fig. 18, the PCF board connection device of the fourth embodiment is different from the first embodiment in the structure of the coupling nut 30, and in the fourth embodiment, the first threaded hole 33 is communicated with the second threaded hole 34, and the diameter of the first threaded hole 33 is equal to that of the second threaded hole 34, so that the PCF board connection device is easy to process and convenient to adjust in a construction site.

EXAMPLE five

As shown in fig. 19, the PCF board connection device of the fifth embodiment is different from the first embodiment in the structure of the second connection board 50, and in the fifth embodiment, the surface of the inclined board section 52 is in a plane perpendicular to the surface of the vertical board section.

It should be noted that, as shown in fig. 20 to 22, the upper end of the diagonal brace includes two clamping plates 81, the diagonal plate section 52 is located between the two clamping plates 81, the two clamping plates 81 and the diagonal plate section 52 are connected by a fastening member 90, and the fastening member 90 includes a bolt and a nut.

EXAMPLE six

As shown in fig. 23 to 25, a difference between the PCF board connection device of the sixth embodiment and the PCF board connection device of the first embodiment is that the connection member has a different structure, in the sixth embodiment, the connection member includes a connection bolt 40 and a horn 100 which are integrally formed, an outer diameter of an end of the horn 100 away from the connection bolt 40 is larger than an outer diameter of an end of the horn 100 close to the connection bolt 40, a plurality of fixing holes 521 are uniformly distributed on the horn 100, the plurality of fixing holes 521 are arranged along a circumferential direction of the horn 100, a hook of the inclined support may be hooked in one of the plurality of fixing holes 521, and the horn 100 is conveniently connected with the inclined support.

The construction method adopting the PCF plate connecting device comprises the following steps: pre-embedding the embedded part 10 in the PCF board 60, and reserving the exposed length of the screw 12 of the embedded part 10 according to the thickness of the wall; sleeving the elastic plug 20 at the end part of the screw 12; one end of the connecting nut 30 is connected with the screw 12 through the first through hole 21 of the elastic plug 20; installing the sizing template 70, and connecting the other end of the connecting nut 30 with a connecting piece from one side of the outer wall of the sizing template 70 through a third through hole of the sizing template 70, so that the PCF plate and the sizing template 70 are oppositely arranged and fixed through a connecting device; wherein, one end of the elastic plug 20 close to the sizing template 70 is tightly attached to the inner wall of the sizing template 70. It should be noted that the outer wall side of the sizing die 70 refers to the side of the sizing die 70 facing the room, i.e., the side of the sizing die 70 away from the PCF board 60.

According to the construction method of the PCF board connecting device, the embedded parts 10 are directly embedded in the PCF board, and no penetrating holes are required to be reserved on the PCF board, so that water seepage and cold bridges are avoided, and the influence on the later-stage service performance of the component is reduced; and the connecting device only needs to be constructed in the floor, and does not need to stand on an outer frame outside the PCF plate for construction, thereby ensuring the safety of operators. The connecting nut 30 is connected with the embedded part 10 and the connecting piece is connected with the connecting nut 30 in a detachable threaded connection mode, so that the operation is simple, the construction is fast, and the construction period is shortened.

Specifically, the construction method further comprises: and (3) connecting the connecting pieces by using the fixing parts 80, and pouring the wall, wherein the fixing parts 80 are fixed on the construction plate, and concrete is poured in a cavity enclosed between the PCF plate 60 and the sizing template 70 to form the wall. The construction board is a floor or foundation slab, and the PCF board 60 and the sizing form 70 are fixed by the connecting means and the fixing member 80. The fixing member 80 is a diagonal brace or the like.

Specifically, the construction method further comprises: after the shaping template 70 is removed, the connecting piece, the connecting nut 30 and the elastic plug 20 are removed, so that a pot hole with the same appearance as the elastic plug 20 is formed on the surface of the wall body, and the pot hole is left on the inner wall of the wall body, so that the filling strength can be increased during subsequent trowelling, and cracking and falling off are prevented. The shaping template 70 can be disassembled after the concrete is poured and solidified in the cavity between the PCF plate 60 and the shaping template 70, and the disassembled connecting piece, the connecting nut 30 and the elastic plug 20 can be recycled, so that the cost is saved.

Specifically, the construction method further comprises: and (6) leveling the pot hole. Specifically, the conical hole is filled with mortar and leveled, the exposed part of the screw rod can play an anchoring role in filling the mortar, and meanwhile, the screw rod is completely immersed in the mortar, so that the hidden danger of cold bridge or water seepage is prevented, and the construction quality is ensured.

The following describes the construction process of the PCF board connection device with reference to fig. 8 to 14:

the first step is as follows: when the PCF board 60 is produced in a factory, the embedded parts 10 are embedded in the PCF board 60:

the second step is that: the elastic plug 20 and the connecting nut 30 are installed on the embedded part 10 of the PCF plate 60, the matching size is controlled by adjusting the screwing-in distance of the connecting nut 30, so that the outer side planes of the elastic plug 20 and the connecting nut 30 are flush with the outer vertical surface of the subsequent poured concrete, the installation precision of the template is ensured, and the pouring thickness of the wall body is ensured.

The third step: after the PCF plate 60 is hoisted in place, the shaping template 70, the connecting bolt 40, the second connecting plate 50 and the inclined support are sequentially installed for temporary fixation.

The fourth step: the perpendicularity of the PCF plate 60 is calibrated by adjusting the length of the diagonal support.

The fifth step: after the concrete is poured and solidified in the cavity between the PCF plate 60 and the shaping template 70, the inclined support, the connecting bolt 40, the second connecting plate 50 and the shaping template 70 are sequentially removed, only the embedded part 10 is kept in the concrete, after the inclined support, the connecting bolt 40, the second connecting plate 50 and the shaping template 70 are removed, a conical hole is formed in the position of the elastic plug 20, the part of a screw rod of the embedded part 10 is exposed, mortar is used for filling the conical hole and is leveled, the exposed part of the screw rod can play an anchoring role in filling the mortar, meanwhile, the screw rod is completely immersed in the mortar, cold bridge or water seepage hidden danger is prevented, and the construction quality is guaranteed.

The PCF board connecting device does not need a worker to stand on an outer frame outside the PCF board to reinforce the outer side of the PCF board, and can finish reinforcement only in a floor, so that the construction is convenient, and the safety is also ensured; the connecting nuts 30 and the embedded parts 10 and the connecting bolts 40 and the connecting nuts 30 are connected in a detachable threaded connection mode, so that the position of the template can be positioned, and the pouring thickness of the wall body is controlled; the embedded part 10 is embedded in the concrete, does not need to be provided with a through hole, and has small influence on the performance of a structural system; the perpendicularity of the PCF plate can be adjusted by adjusting the length of the inclined support in combination with the inclined support; the whole structure is simple, the operation is simple and convenient, the safety and the reliability are high, and the repeated use is realized.

The utility model also provides a prefabricated part, which comprises a steel reinforcement framework and a PCF plate, and also comprises: the embedded part 10 comprises a screw 12, wherein one end of the screw 12 is fixedly connected with the steel reinforcement framework; the elastic plug 20 is provided with a first through hole 21 and is sleeved at the end part of the other end of the screw 12, and the outer diameter of one end of the elastic plug 20 far away from the screw 12 is larger than that of one end of the elastic plug close to the screw 12; one end of the connecting nut 30 is in threaded connection with the screw 12 through the first through hole 21; the connecting member is screw-coupled to the other end of the coupling nut 30.

As an alternative embodiment, the prefabricated component includes a steel reinforcement cage and a PCF board, and further includes: the embedded part 10 comprises a screw 12 and a connecting seat, wherein one end of the screw 12 is fixedly connected with the connecting seat, and the connecting seat is embedded in the PCF plate; the elastic plug 20 is provided with a first through hole 21 and sleeved at the end part of the other end of the screw 12, and the outer diameter of one end of the elastic plug 20 far away from the connecting seat is larger than that of one end of the elastic plug close to the connecting seat; one end of the connecting nut 30 is in threaded connection with the screw 12 through the first through hole 21; the connecting member is screw-coupled to the other end of the coupling nut 30.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the PCF plate connecting device comprises an embedded part 10, an elastic plug 20, a connecting nut 30, a connecting bolt 40 and a second connecting plate 50, wherein the embedded part 10 is embedded in the PCF plate, and a penetrating hole is not reserved in the PCF plate during component production, so that the influence on the later-stage use performance of the component is reduced, the production and installation difficulty is reduced, and the problem that the requirement on the later-stage use performance of the component and the hole position precision is high due to the reserved penetrating hole during component production is effectively solved.

2. One end of the embedded part 10 and one end of the connecting bolt 40 are provided with external threads, an inner hole of the connecting nut 30 is provided with internal threads, and the embedded part 10, the connecting nut 30 and the connecting bolt 40 are connected through threads; the outer wall of the thin rod of the connecting nut 30 is provided with a bulge, the inner hole of the elastic plug 20 matched with the connecting nut 30 is provided with a groove, the elastic plug 20 and the connecting nut 30 are matched through the bulge and the groove to prevent axial movement and relative rotation, and the bell mouth of the elastic plug 20 is flush with the outer side surface of the connecting nut 30; the second connecting plate 50 is provided with a second through hole, the connecting bolt 40 can penetrate into the second through hole 511 of the second connecting plate 50 to be in threaded connection with the connecting nut 30, and the connecting bolt 40 and the second through hole 511 are in clearance fit.

3. The PCF board connecting device can complete temporary fixing operation indoors, is safe and fast, avoids outer frame construction, and ensures the safety of operating personnel.

4. The PCF plate 60 is temporarily fixed through the inclined supports, the perpendicularity of the PCF plate 60 is adjusted through the inclined supports, the adjustment is convenient, and the component installation quality and the concrete pouring quality are guaranteed.

5. The connecting bolt 40, the connecting nut 30, the elastic plug 20 and the second connecting plate 50 of the PCF plate connecting device can be disassembled and reused, the material reuse rate is high, the construction is rapid, the construction period is shortened, and the requirement of 'four sections and one environment protection' is favorably realized.

6. The PCF board connecting device is simple in construction operation, easy to operate and capable of saving labor.

7. The embedded part 10 comprises a cross rod and a screw rod, and the cross rod can be spot-welded on a steel reinforcement framework of the PCF plate, so that the fixation is more convenient.

8. The connecting nut 30 can adopt a non-through type double threaded hole at two sides and a step hole type threaded hole, can control the screwing-in depth by means of a middle partition or a step, and is used for positioning the template installation, so that the wall body pouring thickness is ensured; the connecting nut 30 can also adopt a through threaded hole with equal diameter, is easy to process and is convenient to adjust in a construction site.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the utility model.

Claims (13)

1. A PCF board connection apparatus, comprising:

an embedment (10) including a screw (12);

the elastic plug (20) is provided with a first through hole (21) and is sleeved at the end part of one end of the screw rod (12), and the outer diameter of one end, far away from the screw rod (12), of the elastic plug (20) is larger than that of one end, close to the screw rod (12), of the elastic plug;

one end of the connecting nut (30) is in threaded connection with the screw rod (12) through the first through hole (21);

and the connecting piece is in threaded connection with the other end of the connecting nut (30).

2. The PCF board connecting device according to claim 1, wherein said connecting member comprises a connecting bolt (40) and a second connecting plate (50), said connecting bolt (40) is threadedly connected to the other end of said connecting nut (30), one end of said second connecting plate (50) is sleeved on said connecting bolt (40) so that said connecting bolt (40) can lock one end of said second connecting plate (50) with said connecting nut (30), and said other end of said second connecting plate (50) is provided with a fixing hole (521).

3. The PCF board connection device of claim 1 wherein said embedment (10) further comprises a connection mount, the other end of said threaded rod (12) being fixedly connected to said connection mount.

4. The PCF board connecting device according to claim 1, wherein said connecting member comprises a connecting bolt (40) and a trumpet (100) which are integrally formed, the outer diameter of the end of said trumpet (100) far away from said connecting bolt (40) is larger than the outer diameter of the end of said trumpet (100) near said connecting bolt (40), and a plurality of fixing holes (521) are uniformly distributed on said trumpet (100).

5. The PCF plate connection device of claim 1 wherein said coupling nut (30) outer end surface does not extend beyond said elastomeric plug (20) outer end surface.

6. The PCF plate connection device of claim 3 wherein said connection seat is a first connection plate (11), or said connection seat is a connection rod in a straight shape, said connection rod being arranged at an angle to said screw (12), or said connection seat is a cross bar (13).

7. PCF board connection device according to claim 1, wherein the outer wall of said connection nut (30) and the inner wall of said elastic plug (20) are provided with locking structures to lock the position of said elastic plug (20).

8. The PCF board connection device of claim 7, wherein said locking structure comprises a locking protrusion (311) and a locking groove (2111), said locking protrusion (311) being provided on an outer wall of said connection nut (30), said locking groove (2111) being provided on a hole wall of said elastic plug (20), said locking protrusion (311) being insertable into said locking groove (2111), or said locking protrusion (311) being provided on a hole wall of said elastic plug (20), said locking groove (2111) being provided on an outer wall of said connection nut (30), said locking protrusion (311) being insertable into said locking groove (2111), or said locking structure comprises an external thread provided on an outer wall of said connection nut (30) and an internal thread provided on an inner wall of said elastic plug (20), the internal thread is connected with the external thread.

9. The PCF board connection device according to claim 1, wherein said first through hole (21) comprises a straight hole section (211), a first step surface (212) and a tapered hole section (213) connected in sequence, the diameter of said straight hole section (211) is smaller than the smallest diameter of said tapered hole section (213), the diameter of said tapered hole section (213) gradually increases from its end near said straight hole section (211) to the other end, said connection nut (30) comprises a first column section (31) and a second column section (32), the outer diameter of said first column section (31) is smaller than the outer diameter of said second column section (32), said first column section (31) is connectable with said elastic plug (20) through said straight hole section (211), said elastic plug (20) is fittable with a second step surface formed between said first column section (31) and said second column section (32) through said first step surface (212), to limit the movement of said elastic plug (20).

10. The PCF board connection device of claim 9 wherein the length of said straight bore section (211) is less than the length of said tapered bore section (213) in its axial direction, the length of said first column section (31) is less than or equal to the length of said straight bore section (211), and the length of said second column section (32) is less than or equal to the length of said tapered bore section (213) in its axial direction.

11. The PCF board attachment device of claim 2 or 4 wherein said attachment nut (30) has a first threaded hole (33) and a second threaded hole (34), said first threaded hole (33) being attached to said threaded rod (12), said second threaded hole (34) being attached to said attachment bolt (40), said first threaded hole (33) and said second threaded hole (34) being either communicable or non-communicable.

12. The prefabricated part is characterized by comprising a steel reinforcement framework and a PCF plate, and further comprising:

the embedded part (10) comprises a screw rod (12), wherein one end of the screw rod (12) is fixedly connected with the steel reinforcement framework;

the elastic plug (20) is provided with a first through hole (21) and is sleeved at the end part of the other end of the screw rod (12), and the outer diameter of one end, far away from the screw rod (12), of the elastic plug (20) is larger than that of one end, close to the screw rod (12), of the elastic plug;

one end of the connecting nut (30) is in threaded connection with the screw rod (12) through the first through hole (21);

and the connecting piece is in threaded connection with the other end of the connecting nut (30).

13. The prefabricated part is characterized by comprising a steel reinforcement framework and a PCF plate, and further comprising:

the embedded part (10) comprises a screw rod (12) and a connecting seat, wherein one end of the screw rod (12) is fixedly connected with the connecting seat, and the connecting seat is embedded in the PCF plate;

the elastic plug (20) is provided with a first through hole (21) and is sleeved at the end part of the other end of the screw rod (12), and the outer diameter of one end, far away from the connecting seat, of the elastic plug (20) is larger than that of one end, close to the connecting seat, of the elastic plug;

one end of the connecting nut (30) is in threaded connection with the screw rod (12) through the first through hole (21);

and the connecting piece is in threaded connection with the other end of the connecting nut (30).

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