CN108532591B

CN108532591B - Connecting piece and prefabricated part connected by same

Info

Publication number: CN108532591B
Application number: CN201810292028.5A
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-09
Filing date: 2015-06-09
Publication date: 2019-12-24
Anticipated expiration: 2035-06-09
Also published as: CN105113502B; WO2016197597A1; CN105113502A; CN108532591A

Abstract

The invention discloses a connecting piece and a prefabricated part connected by the connecting piece, which comprises two connecting nuts, wherein one connecting nut is internally screwed with a plug connector, the other connecting nut is internally screwed with a middle nut, an elastic component and a positioning snap ring are sequentially arranged on a clamping table of the connecting nut, and when the plug connector penetrates through the middle nut and is inserted into the positioning snap ring, the positioning snap ring can clamp the plug connector so as to mutually connect the two connecting nuts. When the positioning snap ring moves towards the direction of the snap ring stopping cavity along the inner wall of the snap ring positioning cavity and touches the snap ring stopping cavity, the snap ring stopping cavity can prevent the positioning snap ring from moving so as to prevent the positioning snap ring from sliding out of the snap ring positioning cavity; the connecting piece is convenient and reliable when connecting objects.

Description

Connecting piece and prefabricated part connected by same

The present application is a divisional application of patent application with application number "201510312502.2" and the technical solutions of the present application are described in the parent application, which is filed on the applicant on 09/06/2015 under the heading of "connecting member for connecting two objects and prefabricated member connected by the connecting member".

Technical Field

The invention belongs to the technical field of building components, and relates to a connecting piece and a prefabricated component connected by the connecting piece.

Background

In recent years, precast prestressed concrete piles are developed rapidly due to the relatively poor quality stability of the cast-in-place piles, the prestressed concrete square piles are one of pile types, and the existing concrete prestressed square piles generally have square cross sections. During the piling process, piles with different lengths are selected according to different requirements, and therefore piles are required to be connected with one another to form a long pile body.

In addition, in the fields of bridges, water pipe connections, culvert buildings and the like, prefabricated parts also need to be connected, and methods such as splicing, cement paste connection, steel bar connection and the like are generally adopted, but the methods are inconvenient to connect and influence the construction progress.

The two ends of the existing prefabricated member are provided with steel plates, and the square piles are connected through mutual welding between the steel plates. After the pile body after connection is pressed into the ground during pile pressing, salt, especially chloride, contained in the soil can corrode a steel plate exposed in the soil, so that the connection between the piles is broken, and the connection piles are disconnected. In addition, the manner of connection by welding of steel plates is relatively complicated, and connection is inconvenient. Accordingly, a method of connecting with connectors is provided, which greatly improves the connection speed and strength between the preforms while preventing corrosion.

As disclosed in the patent of the present applicant filed earlier, a prestressed concrete octagonal square pile [ application No.: 201410541960.9], provides a plug assembly and a slot assembly for connecting the ends of two piles, the plug assembly comprises a plug base fixed in the square pile body and a plug extending out of the square pile body, the slot assembly comprises a slot fixed in the square pile body and a sealing ring fixedly connected with the mouth of the slot, when the plug is inserted into the slot, the plug is connected with the sealing ring in a sealing way. The plug and the plug base are of detachable structures, one end, adjacent to the plug and the plug base, of the plug is provided with a threaded hole with internal threads, a stud with external threads is arranged on the plug base, the stud and the threaded hole are matched with each other, and when the stud is in threaded connection with the threaded hole, the plug is in threaded connection with the plug base. The plug comprises a plug connector and a plug connection part, the plug connector and the threaded hole are located at two ends of the plug connection part, the plug connection part is in the shape of an inverted cone frustum with a large upper opening and a small lower opening, the inner cavity of the sealing ring is in the shape of an inverted cone frustum with a large upper opening and a small lower opening, and the plug connector is in the shape of a drum with two small ends and a large middle part. And a clamping ring is arranged in the slot and below the sealing ring, and is clamped on the insertion part when the insertion part is inserted into the slot. An elastic piece is further arranged in the slot, one end of the elastic piece is abutted against the bottom of the slot, and the other end of the elastic piece is abutted against the clamping ring. The shape of the snap ring is matched with the shape of the joint of the plug connector and the plug part, and the sealing ring is in threaded connection with the slot.

The plug assembly and the slot assembly of the scheme can enable the two pile bodies to be quickly connected, and are firmly connected. But the proposal also has the following defects: the plug base only has a supporting surface for supporting the steel bar expansion part, and the surface of the expansion part is in an irregular shape, so that the contact area of the clamping table is small when the clamping table is in contact with the expansion part, and if the tension force is too large, the expansion part is easy to separate from the clamping table, so that the connection failure is caused.

Disclosure of Invention

The invention aims to solve the problems and provide a connecting piece which is used for connecting two objects and has reliable and convenient connection.

Another object of the present invention is to provide a prefabricated unit which is connected by the above-mentioned connecting member.

In order to achieve the purpose, the invention adopts the following technical scheme: a connecting piece for connecting two objects comprises two connecting nuts, wherein each connecting nut comprises a connecting end and a tensioning end which are connected with each other, internal threads are arranged on the inner wall of each connecting end, through holes which are communicated with each other are formed in the tensioning end and the connecting ends, and the aperture of the inner wall of each tensioning end is smaller than that of the inner wall of each connecting end, so that a clamping table capable of clamping a large part on a connecting rod is formed at the connecting part of the inner wall of each tensioning end and the inner wall of each connecting end, and the outer surface of each clamping table is formed by mutually connecting at least two supporting surfaces which are not on the same plane;

the connector is characterized in that a connector clip is screwed in one of the connecting nuts, an intermediate nut is screwed in the other connecting nut, an elastic component and a positioning snap ring are sequentially arranged on a clamping platform of the connecting nut, and when the connector clip penetrates through the intermediate nut and is inserted into the positioning snap ring, the positioning snap ring can clamp the connector clip to enable the two connecting nuts to be connected with each other.

In the connecting piece for connecting two objects, the outer wall of the tensioning end is a polygon with the number of sides not less than 4, the stopping step is arranged between the outer wall of the tensioning end and the outer wall of the connecting end, and when the clamping apparatus clamps the tensioning end, the stopping step can prevent the clamping apparatus from sliding to the connecting end.

In foretell connecting piece for connecting two objects, the coupling nut lateral wall on set up the portion passageway that expands that can let the portion of expanding on the connective bar get into, be equipped with the rod iron passageway that can let the connective bar get into on the coupling nut lateral wall just the rod iron passageway extend to the bottom of stretch-draw end, the portion passageway of expanding connects the rod iron passageway.

In foretell connecting piece for connecting two objects, middle nut have the external screw thread, the snap ring that middle nut is close to elastic component's one end inner wall has snap ring location chamber and is connected with snap ring location chamber ends the position chamber, the location snap ring pass through elastic component's elastic force effect paste tightly on the inner wall in snap ring location chamber, when the location snap ring ends the position chamber direction removal and touch the snap ring and end the position chamber along the snap ring of the inner wall in snap ring location chamber, the snap ring stop when the position chamber can prevent the location snap ring removal thereby prevent location snap ring roll-off snap ring location chamber.

In the connecting piece for connecting two objects, the inner wall of the snap ring positioning cavity and the inner wall of the snap ring stopping cavity have different gradients.

In foretell connecting piece for connecting two objects, the inner wall in snap ring location chamber and the snap ring end and have the contained angle and contained angle for the obtuse angle between the inner wall in position chamber, the location snap ring include a plurality of block shapes, the same positioning card of size, a plurality of positioning card are along the axial lead circumference evenly distributed of middle nut and enclose and form the location snap ring.

In the above connecting piece for connecting two objects, the inner wall of the end part of the middle nut is further provided with an elastic part positioning cavity connected with the snap ring stopping cavity, the elastic part positioning cavity is matched with the elastic component, and when the middle nut is screwed into the connecting nut, the end part of the elastic component is just clamped into the elastic part positioning cavity.

In the connecting piece for connecting two objects, the elastic component comprises a spring and a spring pressing sheet pressed on the spring, and the positioning snap ring is pressed on the spring pressing sheet.

In foretell connecting piece for connecting two objects, plug connector one end for the grafting main part end, the other end has the bayonet joint, forms inside sunken draw-in groove at the junction of grafting main part end and bayonet joint, the draw-in groove outer wall be equipped with at least one with the positioning snap ring inner wall and match suitable stretch-draw rand, when the plug connector inserted in the positioning snap ring, stretch-draw rand and positioning snap ring inner wall formed the joint cooperation.

A prefabricated component connected by connecting pieces is characterized in that a pile body comprises a plurality of prefabricated components which are independent from each other and are connected with each other, and at least two prefabricated components are connected through the connecting pieces.

In the prefabricated parts connected by the connecting piece, the cross sections of at least two prefabricated parts are not equal in size.

In the prefabricated parts connected by the connecting pieces, the prefabricated parts are alternately connected with each other according to the large-section prefabricated parts and the small-section prefabricated parts to form the pile body.

In the prefabricated parts connected by the connecting pieces, a plurality of connecting nuts are respectively fixed at two ends of the prefabricated parts, the connecting nuts positioned at the two ends of the prefabricated parts correspond to each other one by one and are connected and fixed by the connecting rods, and the joint of every two prefabricated parts is connected and fixed by at least one connecting piece.

In foretell prefabricated component who connects with the connecting piece, the one end of prefab a plurality of coupling nut have, the other end has a connection end plate, connection end plate on have with coupling nut one-to-one stretch-draw hole mechanism just stretch-draw hole mechanism and coupling nut between connect fixedly with the connective bar, connect fixedly with connecting piece or connection end plate between two adjacent prefabs.

In foretell prefabricated component who connects with the connecting piece, the outer wall of connection end plate and be equipped with locking hole mechanism along the circumference of connecting the end plate, when connecting through connecting the end plate between two prefabs, locking hole mechanism in be provided with both ends and insert respectively in two locking hole mechanisms and enable two latch segment subassemblies of connecting the end plate and locking each other, stretch-draw hole mechanism include interconnect's expansion portion hole and stretch-draw hole, and expansion portion hole and stretch-draw hole form "8" style of calligraphy structure.

In the prefabricated part connected by the connecting piece, the locking hole mechanism comprises at least one locking hole, the locking block assembly comprises two locking blocks, the shapes of the locking blocks are matched with the locking holes, and the two locking blocks are fixedly connected by bolts.

In the prefabricated part connected by the connecting piece, one side of the locking hole far away from the prefabricated part is provided with a locking groove which is sunken into the locking hole, and the locking block is provided with a locking positioning block matched with the locking groove in shape.

In the above-mentioned prefabricated parts connected by the connecting piece, the interior of the prefabricated part is provided with at least one hollow channel, and two ends of the hollow channel extend out of two ends of the prefabricated part or are closed in the interior of the prefabricated part.

In the prefabricated parts connected by the connecting piece, when two ends of the hollow channel are closed in the prefabricated part, two isolating plates are respectively fixed at two ends of the hollow channel and are positioned in the prefabricated part.

In the prefabricated part connected by the connecting piece, the prefabricated part is formed by sequentially connecting the large-section piles and the small-section piles.

In the prefabricated parts connected by the connecting pieces, the large-section piles and the small-section piles are connected by the variable-section piles.

In the prefabricated component who connects with the connecting piece, the both ends of prefab have unsmooth ka platform mechanism, when two adjacent prefabs were close to each other, unsmooth ka platform mechanism can let two prefabs joint cooperations.

In the prefabricated part connected by the connecting piece, the concave-convex clamping mechanism comprises a concave table arranged at one end of the prefabricated part and a boss arranged at the other end of the prefabricated part, the shape and the size of the boss and the concave table are matched, and when the boss is inserted into the concave table, the boss and the concave table form clamping matching.

In foretell prefabricated component who connects with the connecting piece, unsmooth ka tai mechanism including setting up two at least concave station of prefab one end and setting up two at least bosss at the prefab other end, shape, size, the quantity of boss and concave station match and fit, unsmooth and boss be annular structure, when the boss inserted in the concave station, boss and concave station formed the joint cooperation.

Compared with the prior art, the invention has the advantages that: the expanded part and a plurality of supporting surfaces on the clamping table form multi-stage support, and the contact area is increased (the contact area can reach more than 80 percent), so that the tensile tension of the clamping table of the connecting nut is improved, and the connecting rod is prevented from being pulled off; in the inserting and pulling process of the inserting rod piece, the clamping ring end position cavity of the middle nut can be matched with the inserting rod to form stable triangular positioning for the positioning clamping ring, the positioning clamping ring is prevented from being separated from the clamping ring positioning cavity, the inserting process of the connecting piece is stable and reliable, and the working efficiency of construction is improved.

Drawings

FIG. 1 is a schematic structural view of two intermediate nuts connected by a connecting rod according to the present invention;

FIG. 2 is a schematic structural view of an intermediate nut provided by the present invention;

FIG. 3 is another schematic structural view of the intermediate nut provided by the present invention;

FIG. 4 is another schematic structural view of the intermediate nut provided by the present invention;

FIG. 5 is another schematic structural view of the intermediate nut provided by the present invention;

FIG. 6 is another schematic structural view of the intermediate nut provided by the present invention;

FIG. 7 is a view from the direction A of FIG. 2;

FIG. 8 is a view from the direction A of FIG. 3;

FIG. 9 is a schematic structural view of a connector provided by the present invention;

FIG. 10 is a schematic view of another state of the connector provided by the present invention;

FIG. 11 is a schematic view of another state of the connector of the present invention;

FIG. 12 is a schematic view of the construction of the intermediate nut;

FIG. 13 is another structural schematic of the intermediate nut provided by the present invention;

FIG. 14 is a schematic view of a prior art intermediate nut;

FIG. 15 is a schematic structural view of a positioning clip ring provided by the present invention;

FIG. 16 is a schematic view of a prior art coupling nut;

FIG. 17 is a schematic illustration of the insertion of the plug into the intermediate nut;

FIG. 18 is a schematic view of the plug member inserted into the middle nut;

FIG. 19 is a schematic view of a prior art connector;

FIG. 20 is a schematic structural view of a preform provided by the present invention;

FIG. 21 is a schematic view of another construction of a preform provided by the present invention;

FIG. 22 is a schematic view of another construction of the preform provided by the present invention;

FIG. 23 is a view from the direction A of FIG. 20;

FIG. 24 is an alternative view from direction A of FIG. 20;

FIG. 25 is an alternative view from direction A of FIG. 20;

FIG. 26 is an alternative view from direction A of FIG. 20;

FIG. 27 is an alternative view from the direction A of FIG. 20;

FIG. 28 is an enlarged view at B of FIG. 21;

FIG. 29 is a cross-sectional view C-C of FIG. 21;

FIG. 30 is a cross-sectional view C-C of the alternate construction of FIG. 21;

FIG. 31 is a cross-sectional view C-C of the alternate construction of FIG. 21;

FIG. 32 is a cross-sectional view C-C of the alternate construction of FIG. 21;

FIG. 33 is an enlarged view at D of FIG. 20;

FIG. 34 is a schematic view of the structure in which two preforms are connected by a connecting member;

FIG. 35 is a schematic structural view of a prefabricated unit provided by the present invention;

FIG. 36 is another schematic structural view of a prefabricated unit according to the present invention;

FIG. 37 is a schematic view of the connector of the present invention in use with a water line connection;

fig. 38 is a schematic view illustrating the connecting member of the present invention in use for bridge abutment connection;

FIG. 39 is a schematic view illustrating the joining member of the present invention when used for joining blocks of a culvert;

FIG. 40 is a schematic view illustrating another direction in which the connecting member of the present invention is used for the connection of blocks of a culvert;

FIG. 41 is a schematic view of another construction of a preform provided by the present invention;

FIG. 42 is a schematic structural view of the connection end plate;

FIG. 43 is a schematic view of another construction of the connection end plate;

FIG. 44 is a schematic view of the construction of two preforms joined by a connecting end plate;

FIG. 45 is an enlarged view at E of FIG. 44;

FIG. 46 is a view from the direction A of FIG. 41;

FIG. 47 is an alternative view from direction A of FIG. 41;

FIG. 48 is an alternative view from direction A of FIG. 41;

FIG. 49 is an enlarged view at F of FIG. 42;

FIG. 50 is a schematic view of a tensioning coupling nut;

FIG. 51 is a schematic view of another construction in which two preforms are joined by a connecting end plate;

FIG. 52 is an enlarged view at G of FIG. 51;

FIG. 53 is a schematic view of the construction of the connector according to the present invention;

FIG. 54 is an enlarged view at H of FIG. 53;

FIG. 55 is a schematic view of the insert as it is inserted into the intermediate nut;

FIG. 56 is a schematic view of the insert partially inserted into the intermediate nut;

FIG. 57 is a schematic view of the insert fully inserted into the intermediate nut;

fig. 58 is another view from direction a of fig. 20.

In the figure: the prefabricated part comprises a prefabricated part 1, a connecting nut 10, a connecting end 11, a tensioning end 12, a clamping table 13, a supporting surface 14, a stopping step 15, an expanded part channel 16, a steel bar channel 17, a connecting bar 19, an expanded part 191, a wound steel bar 192, a large-section pile 101, a small-section pile 102, a variable-section pile 103, a hollow channel 2, a plug-in connector 20, a plug-in main body end 21, a plug-in connector 22, a clamping groove 23, a tensioning clamping ring 24, a middle nut 30, a middle channel 301, an elastic component 31, a spring 311, a spring pressing sheet 312, a positioning clamping ring 32, a positioning clamping sheet 321, a clamping ring positioning cavity 33, a clamping ring stopping cavity 34, an elastic component positioning cavity 35, a plug-in port 36, a connecting end plate 40, a tensioning hole mechanism 41, an expanded part hole 411, a tensioning hole 412, a locking hole mechanism 42, a locking hole 421, a locking groove 422, a locking block component 43, a locking block 431, the device comprises a positioning strip 51, a concave-convex clamping table mechanism 60, a concave table 61, a boss 62, a tap water pipe 81, a pier bearing table 82, a pier column 83, a cross beam 84, a building block 85, a fixing plate 91, a tensioning plate 92, a fixing bolt 93, a tensioning bolt 94, a positioning sleeve 95, a tensioning connecting plate 96, a screw rod 97, a tensioning nut 98 and a pipe die 99.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

The invention provides a connecting piece for connecting two objects, as shown in fig. 9, comprising two connecting nuts 10, wherein one connecting nut 10 is internally screwed with a plug-in unit 20, one end of the plug-in unit 20 is a plug-in unit end 21 with external threads for being screwed and fixed with the connecting nut 10, the other end is provided with a plug-in unit 22, an annular clamping groove 23 is arranged between the plug-in unit 22 and the plug-in unit end 21, the other connecting nut 10 is internally screwed with a middle nut 30, a middle channel 301 in the shape of a truncated cone is arranged in the middle of the middle nut 30, an elastic component 31 and a positioning snap ring 32 are sequentially arranged on a clamping table 13 of the connecting nut 10, and when the plug-in unit 20 passes through the middle nut 30 and is inserted into the positioning snap ring 32, the positioning snap ring 32 can clamp the plug-in unit 20 so as to connect the.

As shown in figure 2, the connecting nut 10 comprises a connecting end 11 and a tensioning end 12 which are connected with each other, an internal thread is arranged on the inner wall of the connecting end 11, through holes which are communicated with each other are arranged inside the tensioning end 12 and the connecting end 11, the aperture of the inner wall of the tensioning end 12 is smaller than that of the inner wall of the connecting end 11, so that a clamping table 13 which can clamp a large part 191 on a connecting rod 19 is formed at the joint of the inner wall of the tensioning end 12 and the inner wall of the connecting end 11, and the outer surface of the clamping table 13 is formed by connecting at least two supporting surfaces 14 which are not on the same plane. The enlarged portion 191 and the plurality of support surfaces 14 on the locking platform 13 form a multi-stage support, increasing the contact area (the contact area can reach more than 80%), thereby improving the tensile tension of the locking platform 13 of the coupling nut 10 and preventing the connecting rod 19 from being pulled off. The connecting rod 19 is typically made of steel, such as steel rod or steel bar.

Fig. 16 shows a coupling nut 10 of the prior art, in which the abutment 13 has only one support surface 14, and since the surface of the enlarged portion 191 is irregular, the contact area of the abutment 13 is small when contacting the enlarged portion 191, and if the tensile force is too large, the enlarged portion 191 is easily separated from the abutment 13. In addition, the outer walls of the connecting end 11 and the tensioning end 12 are arc-shaped.

The supporting surface 14 may be planar or curved. The coupling nut 10 shown in fig. 2 has two support surfaces 14, each of which is planar; the coupling nut 10 shown in fig. 3 is also provided with two support surfaces 14, wherein one support surface 14 is of a planar structure, the other support surface 14 is of an arc-shaped structure, and the support surfaces 14 of the arc-shaped structure are connected with the inner wall of the tensioning end 12; both support surfaces 14 of the coupling nut 10 shown in fig. 4 are of arcuate configuration; the coupling nut 10 shown in fig. 6 has 3 support surfaces 14, each of which is planar.

As shown in FIG. 1, if the two connection nuts 10 are to be connected in a tensioned manner, the two connection nuts 10 can be sleeved into the connection rod 19, the two ends of the connection rod 19 are upset to form the expanded portions 191, the expanded portions 191 are clamped on the clamping platforms 13, and the two connection nuts 10 are tensioned in opposite directions, so that the two connection nuts 10 can be connected in a tensioned manner.

Fig. 50 shows a schematic diagram of the tensioning process of the coupling nut 10. The connecting nuts 10 at two ends of the connecting rod 19 are respectively connected to the fixing plate 91 and the tensioning plate 92, the connecting nuts 10 at the fixing plate 91 are screwed by the fixing bolts 93 so that the connecting nuts 10 are fixedly connected with the fixing plate 91, the connecting nuts 10 at the tensioning plate 92 are screwed by the tensioning bolts 94, the tensioning bolts 94 are fixed on the tensioning plate 92, two ends of the positioning sleeve 95 are connected with the tensioning plate 92 and the tensioning connecting plate 96, the tensioning nuts 98 are fixed on the tensioning connecting plate 96, the screw rod 97 is fixedly connected with the tensioning nuts 98, the screw rod 97 is rotated, the tensioning nuts 98 drive the tensioning connecting plate 96 to move so as to drive the tensioning plate 92 to move, and the connecting nuts 10 at two ends of the connecting rod 19 are respectively clamped on the expansion part 191 so as to be tensioned. During the tensioning process, the contact surface between the clamping platform 13 and the enlarged part 191 is in a pressing state, so that the larger the contact surface area is, the larger the tensile force can be borne. During the tensioning process, the tensioning plate 92, the locating sleeve 95 and the tensioning web 96 are all nested into the pipe die 99 if the axial alignment is to be maintained.

The outer wall of the stretching end 12 is a polygon with the number of sides not less than 4, as shown in fig. 7, the outer wall of the stretching end 12 is a regular hexagon, as shown in fig. 8, the outer wall of the stretching end 12 is a square. Preferably, the number of sides of the polygon is an integral multiple of 2, and may be 8-sided polygon, 10-sided polygon, or the like. A stopping step 15 is arranged between the outer wall of the tensioning end 12 and the outer wall of the connecting end 11, when the tensioning end 12 is clamped by a clamping apparatus, the clamping apparatus can be prevented from sliding to the connecting end 11 by the stopping step 15, so that the tensioning end is fixed by the clamping apparatus, and a connecting screw can be screwed into the connecting end 11 to facilitate tensioning.

The following table shows the strength comparison of the present application with the prior art.

From the table above, can see that, compared with prior art, the intensity of this application requires more highly, and that is to say this application can reach higher tensile force, connects more reliably. Compared with the prior art, the strength of the alloy is generally improved by 10-20% by analysis.

The connecting nut 10 has another scheme, a connecting rod 19 which is upset can be inserted into the connecting nut, as shown in fig. 5, the specific structure is that an expanded part channel 16 which can allow an expanded part 191 on the connecting rod to enter is arranged on the side wall of the connecting nut 10, a steel rod channel 17 which can allow the connecting rod 19 to enter is arranged on the side wall of the connecting nut 10, the steel rod channel 17 extends to the bottom of the stretching end 12, the expanded part channel 16 is connected with the steel rod channel 17, the expanded part 191 and the connecting rod 19 respectively enter the expanded part channel 16 and the steel rod channel 17 and further enter the connecting nut 10, and the clamping table 13 of the connecting nut 10 can clamp the expanded part 191 after moving towards the expanded part 191. The advantage of this design is that the connecting rod 19 can be pre-upset at both ends to form the enlarged portions 191 and then connected to the coupling nut 10 for use in different connection processes.

As shown in fig. 12, the intermediate nut 30 has an external thread, the inner wall of the end of the intermediate nut 30 close to the elastic component 31 has a snap ring positioning cavity 33 and a snap ring stopping cavity 34 connected to the snap ring positioning cavity 33, the positioning snap ring 32 is tightly attached to the inner wall of the snap ring positioning cavity 33 by the elastic action of the elastic component 31, and when the positioning snap ring 32 moves towards the snap ring stopping cavity 34 along the inner wall of the snap ring positioning cavity 33 and touches the snap ring stopping cavity 34, the snap ring stopping cavity 34 can prevent the positioning snap ring 32 from moving, so as to prevent the positioning snap ring 32 from sliding out of the snap ring positioning cavity 33. The inner wall of the end part of the middle nut 30 is also provided with an elastic part positioning cavity 35 connected with the snap ring stopping cavity 34, and the elastic part positioning cavity 35 and the snap ring stopping cavity 34 are in smooth transition.

As shown in fig. 13, another structure of the intermediate nut 30 is provided, in which the inner wall of the snap ring stopping cavity 34 is parallel to the axial line of the intermediate nut 30, and the elastic member positioning cavity 35 has a circular ring shape.

The inner wall of the snap ring positioning cavity 33 and the inner wall of the snap ring stopping cavity 34 have different gradients, and an included angle a is formed between the two inner walls, and the included angle a plays a role in stopping. Preferably, an included angle a is formed between the inner wall of the snap ring positioning cavity 33 and the inner wall of the snap ring stopping cavity 34, and the included angle a is an obtuse angle of 130 degrees and 160 degrees. As shown in fig. 15, the positioning snap ring 32 includes a plurality of positioning clips 321 with the same shape and size, and the positioning clips 321 are uniformly distributed and surrounded along the axial line of the middle nut 30 in the circumferential direction to form the positioning snap ring 32. In fig. 15, the positioning snap ring 32 is composed of 4 positioning clips 321, and in practical applications, all the positioning clips 321 not smaller than 2 clips can be composed of the positioning snap ring 32. The outer wall of the positioning clip 321 is matched with the inner wall of the snap ring positioning cavity 33, the inner wall of the positioning clip 321 is matched with the outer surface of the plug-in connector 22, and the inner wall of the positioning clip 321 can be provided with sawteeth for improving the friction force with the plug-in connector 22.

FIG. 14 provides a schematic view of a prior art intermediate nut 30 having a snap ring positioning cavity 33 without a snap ring stop cavity 34. Since the snap ring stopping cavity 34 has no stopping function on the positioning snap ring 32, when the insertion speed of the plug connector 20 is too high, the positioning snap ring 32 always slides along the snap ring positioning cavity 33 and is separated from the end of the middle nut 30, which causes connection failure.

Fig. 19 is a schematic structural diagram of a connecting piece of the prior art, the middle nut 30 has an external thread, the inner wall has a middle channel 301 for allowing the plug 20 to be inserted, the end of the plug 20 has a plug 22, in the process that the plug 22 is inserted into the middle nut 30, the inner wall of the positioning snap ring 32 is tightly attached to the outer wall of the plug 22, the end of the middle nut 30 expands to form a snap ring positioning cavity 33 with an inclined plane, the snap ring positioning cavity 33 is used for placing the positioning snap ring 32, after the plug 22 is completely inserted into the positioning snap ring 32, the snap groove 23 of the plug 22 is clamped on the positioning snap ring 32, and the positioning snap ring 32 forms a clamping connection with the plug 22. During the insertion process of the plug 22, if the speed is too fast, the positioning snap ring 32 will slide along the inclined surface of the snap ring positioning cavity 33 until sliding out of the middle nut 30, so that the positioning snap ring 32 cannot be snapped into the snap groove 23, which is a defect of the prior art. Because the connection is used for the prefab, if location snap ring 32 drops, then can't play the connection effect, bring very big trouble for the construction.

In the present embodiment, the force analysis when the plug 20 is connected to the positioning snap ring 32 is shown in fig. 17 and 18. When the plug 22 is inserted into the positioning snap ring 32 along the arrow direction in fig. 17, the three points P1, P2 and P3 of the positioning clip 321 are stressed, wherein the stress point P3 is at the included angle between the snap ring positioning cavity 33 and the snap ring stopping cavity 34, and the force is applied due to the blocking of the snap ring stopping cavity 34, as is well known, the three-point support is the most stable support mode, so that the positioning snap ring 32 cannot slide out of the snap ring positioning cavity 33; as shown in fig. 18, when the plug 22 pulls the positioning snap ring 32 in the direction of the arrow in the drawing, three points P1, P2 and P3 of the positioning clip 321 are also stressed, and also form a triangular support, so that the positioning snap ring 32 is clamped at the snap groove 23; to sum up, in the process that the plug 22 is inserted into the positioning snap ring 32, the included angle formed by the snap ring positioning cavity 33 and the snap ring stopping cavity 34 can provide a supporting pivot, so that the positioning clip 321 and/or the positioning snap ring 32 can be stably supported by a triangle under the combined action of the middle nut 30 and the plug 22, the positioning clip 321 and/or the positioning snap ring 32 cannot fall out of the middle nut 30, and after the plug 22 is inserted, the positioning snap ring 32 can also be supported by a triangle, so that the plug 22 can be stably clamped and fixed.

The state of the plug-in unit 20 during and after insertion into the positioning snap ring 32 can be more clearly understood by referring to fig. 10 and 11. As shown in fig. 10, the connector 20 is not yet connected during the process of inserting the positioning snap ring 32. At the moment, the positioning snap ring 32 is positioned among the elastic component 31, the middle nut 30 and the plug-in connector 22 to form a positioning support, and the positioning snap ring 32 is always positioned in the snap ring positioning cavity 33; as shown in fig. 11, when the plug 22 is completely inserted into the positioning snap ring 32, the two connection nuts 10 are butted, the positioning snap ring 32 is clamped in the clamping groove 23, and the positioning snap ring 32 is located between the elastic component 31, the middle nut 30 and the clamping groove 23 to form a positioning support.

The spring positioning cavity 35 is adapted to the spring assembly 31 and the end of the spring assembly 31 snaps into the spring positioning cavity 35 when the intermediate nut 30 is threaded into the coupling nut 10. In this embodiment, the elastic assembly 31 includes a spring 311 and a spring pressing plate 312 pressed on the spring 311, and the positioning snap ring 32 is pressed on the spring pressing plate 312. The spring pressing plate 312 is matched with the shape of the elastic piece positioning cavity 35, so that the spring pressing plate 312 and the middle nut 30 play a pressing and positioning role on the positioning clamping ring 32 when in connection, and the positioning clamping ring 32 is prevented from moving up and down.

Preferably, as shown in fig. 53 and 54, one end of the plug-in unit 20 is a plug-in unit end 21, the other end of the plug-in unit 20 is provided with a plug-in connector 22, an inward recessed clamping groove 23 is formed at the joint of the plug-in unit end 21 and the plug-in connector 22, at least one tension collar 24 matched with the inner wall of the positioning snap ring 32 is arranged on the outer wall of the clamping groove 23, and when the plug-in unit 20 is inserted into the positioning snap ring 32, the tension collar 24 is in snap fit with the inner wall of the positioning snap ring 32.

The tensioning clamping ring 24 can form a tensile structure fixed in clamping connection with the positioning clamping ring 32/the positioning clamping piece 321, so that gaps generated when the prefabricated members 1 are connected through the connecting piece are reduced, namely the pulling resistance between the connector piece 20 and the positioning clamping ring 32 can be improved, the moving distance of the connector piece 20 is reduced, the gaps between the two prefabricated members 1 are reduced, and the connection is firmer and more stable.

Fig. 55 is a schematic structural view of the plug 20 inserted into the intermediate nut, when the plug 20 is not engaged with the positioning ring 32/positioning tab 321, fig. 56 is a schematic structural view of the plug partially inserted into the intermediate nut, when the plug 20 is engaged with the positioning ring 32/positioning tab 321, L1 in fig. 56 indicates the thickness of the filled spacer during the test, in order to precisely control the distance the plug 20 is inserted into the positioning ring 32/positioning tab 321, fig. 57 is a schematic structural view of the plug fully inserted into the intermediate nut, and L2 indicates the thickness of the filled spacer during the test. By comparing the test data of the plug connector 20 with the tensioned collar 24 and without the tensioned collar 24, it can be concluded that the plug connector 20 with the tensioned collar 24 has a more excellent pull-out resistance. The following table is a data alignment. The present application is directed to the connector 20 having the tension collar 24, the conventional art is directed to the connector 20 without the tension collar 24, the gasket thickness is a value of L1 in fig. 56 or L2 in fig. 57, the tension is a value of a tension applied to the plug body end 21, and the intermediate nut 30 is in a fixed state when a tension test is performed.

As can be seen from the above table, the connector 20 with the tension collar 24 has a smaller tension pitch than the connector 20 without the tension collar 24 by more than 1mm under the same tension, i.e. the tension collar 24 has an improved resistance to pull-out.

Example 2

As shown in fig. 35, the present invention also provides a prefabricated part connected by the above-mentioned connecting member, the prefabricated part comprises a plurality of independent and interconnected prefabricated parts 1, and at least two prefabricated parts 1 are connected by the connecting member. The prefabricated member 1 described in this embodiment is a prefabricated pile, such as a square pile, a cylinder, a hollow pile, a solid pile, a variable cross-section pile, a non-variable cross-section pile, and the like.

The concrete mode of connecting with the connecting piece is: as shown in fig. 34 and 9, at least one connecting nut 10 corresponding to each other is respectively disposed at the end portions of two prefabricated members 1, wherein an insert 20 is screwed in the connecting nut 10 in one of the prefabricated members 1, an intermediate nut 30 is screwed in the connecting nut 10 in the other prefabricated member 1, an intermediate channel 301 in the form of a truncated cone is disposed in the intermediate of the intermediate nut 30, an elastic component 31 and a positioning snap ring 32 are sequentially disposed on a chuck 13 of the connecting nut 10, and when the insert 20 passes through the intermediate nut 30 and is inserted into the positioning snap ring 32, the positioning snap ring 32 can chuck the insert 20 so as to connect the two connecting nuts 10 with each other, and connect the two prefabricated members 1.

Preferably, the cross sections of at least two prefabricated members 1 are different in size, that is, the pile body is formed into a variable-section pile, so that the pulling resistance is improved. More preferably, the prefabricated member 1 is formed by alternately connecting the large-section prefabricated member and the small-section prefabricated member to form a pile body, so that the pile body is in a concave-convex matching structure, and the pulling resistance is improved.

The two ends of the prefabricated member 1 are respectively fixed with a plurality of connecting nuts 10, the connecting nuts 10 at the two ends of the prefabricated member 1 are in one-to-one correspondence and are connected and fixed by using connecting rods 19, the expansion parts 191 at the two ends of the connecting rods 19 are respectively clamped to connect the nuts 10, the two connecting nuts 10 are respectively located at the two ends of the prefabricated member 1, the joint of each two prefabricated members 1 is connected and fixed by at least one connecting piece, and preferably, the connecting nuts 10 are uniformly arranged at the end parts of the prefabricated member 1 and are arranged in an annular or array manner.

Example 3

The structure and operation principle of this embodiment are substantially the same as those of embodiment 2, except that, as shown in fig. 36, one end of each prefabricated member 1 is provided with a plurality of connecting nuts 10, the other end is provided with a connecting end plate 40, and two adjacent prefabricated members 1 are connected and fixed by a connecting piece or connecting end plate 40.

As shown in fig. 41, the connection end plate 40 has a tension hole mechanism 41 corresponding to the connection nut 10 one by one, and the tension hole mechanism 41 and the connection nut 10 are connected and fixed by a connection rod 19. In the prior art, the connection between the two prefabricated members 1 is achieved by welding or fixedly connecting the connection end plates 40 with bolts. As shown in fig. 51 and 52, the two connection end plates 40 have an annular recess 40a at the joint of the connection, and the bottom of the recess 40a is welded by electric welding to form an annular electric welding ring 40b, thereby fixedly connecting the two connection end plates 40.

In the present embodiment, another connection method is provided, as shown in fig. 44, the outer wall of the connection end plate 40 is provided with a locking hole mechanism 42 along the circumference of the connection end plate 40, and when two prefabricated members 1 are connected by the connection end plate, a locking block assembly 43 is disposed in the locking hole mechanism 42, and both ends of the locking block assembly are inserted into the two locking hole mechanisms 42 respectively and can lock the two connection end plates 40 to each other.

As shown in fig. 46 to 48, the tensioning hole mechanism 41 includes an enlarged part hole 411 and a tensioning hole 412 connected to each other, wherein the diameter of the enlarged part hole 411 is larger than that of the enlarged part 191 so as to allow the enlarged part to enter, the diameter of the tensioning hole 412 is smaller than that of the enlarged part 191 so as to allow the tensioning hole 412 to clamp the enlarged part 191, and the enlarged part hole 411 and the tensioning hole 412 form an "8" structure, when the connection end plate 40 is installed, the enlarged part holes 411 and the enlarged parts 191 correspond to each other one by one so as to allow the connection end plate 40 to be sleeved on the connection rod 19, and then the connection rod 19 enters the tensioning hole 412 by rotating a certain angle, at which the enlarged parts 191 clamp the tensioning hole 412. The connecting end plates 40 should generally match the cross-sectional shape of the preform 1, as shown in fig. 46-48 for circular, rectangular and hexagonal shapes, respectively.

As shown in fig. 42, 45 and 49, the locking hole mechanism 42 includes at least one locking hole 421, the locking block assembly 43 includes two locking blocks 431, the locking blocks 431 are shaped to fit the locking hole 421, and the two locking blocks 431 are fixedly connected with each other by bolts.

Referring to fig. 49, the side of the locking hole 421 away from the preform 1 is provided with a locking groove 422 recessed into the locking hole 421, and the locking block 431 is provided with a locking positioning block 432 adapted to the shape of the locking groove 422.

As shown in fig. 43, which is a schematic structural diagram of another connection end plate 40 provided in this embodiment, a tubular connection sleeve 44 may be further disposed on a side of the connection end plate 40 close to the preform 1, and the connection sleeve 44 is sleeved on an outer wall of an end portion of the preform 1, so as to strengthen the connection.

Example 4

This example is substantially the same as example 3 except that, as shown in fig. 21 and 22, the preform 1 has at least one hollow passage 2 inside, and both ends of the hollow passage 2 extend out of both ends of the preform 1 or are closed inside the preform 1.

As shown in fig. 21, when both ends of the hollow passage 2 are closed inside the preform 1, a partition plate 50 is fixed to each end of the hollow passage 2, and the partition plate 50 is located inside the preform 1. The area of the partition board 50 should be larger than or equal to the sectional area of the hollow channel 2, so as to block the two ends of the hollow channel 2, and in order to fix the partition board 50 in the prefabricated member 1, the circumferential edge of the partition board 50 may be provided with a plurality of positioning strips 51.

The partition board 50 shown in fig. 29 is rectangular, having 4 positioning bars 51; the partition plate 50 shown in fig. 30 is circular; the separator 50 shown in fig. 31 is circular with 3 given bars 51; the separator 50 shown in fig. 32 is circular with 5 positioning bars 51.

Example 5

This embodiment is substantially the same as embodiments 2 to 3 except that the structure of the preform 1 is different, and as shown in fig. 20, the preform 1 is formed by connecting large-section piles 101 and small-section piles 102 in this order. The large-section piles 101 and the small-section piles 102 are connected through the variable-section piles 103, the variable-section piles 103 are different in cross section distributed along the axial direction, and the difference is larger than the manufacturing error in the field of prefabricated parts. The both ends of prefab 1 have the coupling nut 10 of one-to-one respectively, and a coupling nut 10 is connected respectively at connecting rod 19 both ends, still is fixed with a plurality of winding reinforcing bars 192 in the circumference of connecting rod 19, and has the interface 36 of certain distance between the tip of coupling nut 10 and prefab 1, as shown in fig. 33, interface 36 is the loudspeaker form, is convenient for connect other parts, also prevents simultaneously that two coupling nut 10 on the same connecting piece from taking place the striking.

Example 6

In this embodiment, a concave-convex clamping mechanism 60 is added on the basis of the embodiment 4 and the embodiment 5, as shown in fig. 20, 21 and 28, concave-convex clamping mechanisms 60 are arranged at both ends of the prefabricated member 1, and when two adjacent prefabricated members 1 approach each other, the concave-convex clamping mechanisms 60 can enable the two prefabricated members 1 to be clamped and matched.

The concave-convex clamping mechanism 60 comprises a concave platform 61 arranged at one end of the prefabricated member 1 and a convex platform 62 arranged at the other end of the prefabricated member 1, the shape and the size of the convex platform 62 and the concave platform 61 are matched, and when the convex platform 62 is inserted into the concave platform 61, the convex platform 62 and the concave platform 61 form clamping fit. Two ends of the prefabricated member 1 are respectively provided with an anchor ear 104, and the anchor ears 104 are in an annular structure.

The boss 62 and the recess 61 may be different shapes, and the cross-sections of the large-section pile 101 and the small-section pile 102 may be different shapes.

Fig. 23-27 show 5 different boss 62 and cross-sectional shapes. As shown in fig. 23, the boss 62 is a truncated cone, the cross section of the large-section piles 101 and/or the small-section piles 102 is hexagonal, and the connecting nuts 10 are uniformly arranged in the hexagonal shape;

the boss 62 shown in fig. 24 is in a truncated cone shape, the large-section piles 101 and/or the small-section piles 102 are circular in section, and the connecting nuts 10 are uniformly arranged around the boss 62 in a circular shape;

the boss 62 shown in fig. 25 is in the shape of a cubic table, the large-section piles 101 and/or the small-section piles 102 are rectangular in section, and the coupling nuts 10 are uniformly arranged around the boss 62 in a rectangular shape;

the boss 62 shown in fig. 26 has a cylindrical shape, the large-section piles 101 and/or the small-section piles 102 have a rectangular cross section, and the coupling nuts 10 are uniformly arranged around the boss 62 in a rectangular shape;

the bosses 62 shown in fig. 27 are hexagonal columns, the large-section piles 101 and/or the small-section piles 102 have hexagonal cross sections, and the coupling nuts 10 are arranged around the bosses 62 in a hexagonal pattern.

As shown in fig. 58, the concave-convex clamping mechanism 60 may also be another structure, which includes at least two concave platforms 61 disposed at one end of the preform 1 and at least two convex platforms 62 disposed at the other end of the preform 1, the shapes, sizes and numbers of the convex platforms 62 and the concave platforms 61 are matched, the concave platforms 61 and the convex platforms 62 are ring-shaped structures, and when the convex platforms 62 are inserted into the concave platforms 61, the convex platforms 62 and the concave platforms 61 form a clamping fit. This structure has a good sealing effect and prevents external liquid from entering the center of the preform 1.

Example 7

The present embodiment is a connecting member as described in embodiment 1, which is used for connecting a water pipe, and the specific connecting method is the same as that of embodiment 2, except that in the present embodiment, the water pipe 81 is the preform 1. As shown in fig. 37, two water pipes 81 are fitted together by means of a socket joint, and the socket joints of the two water pipes 81 are respectively provided with one-to-one corresponding connection nuts 10, and then connected by means of the connection member described in embodiment 1.

Example 8

In this embodiment, the connecting member described in embodiment 1 is used for bridge pier connection, and a specific connection method is the same as that of embodiment 2, except that in this embodiment, the bridge pier bearing platform 82, the bridge pier upright columns 83, and the connecting beams 84 are the prefabricated members 1. As shown in fig. 38, the abutment platforms 82 are connected to the abutment columns 83, the abutment columns 83 are connected to the cross beams 84, the abutment columns 83 may be connected in multiple stages, and the connection nuts 10 are provided at the connection points in one-to-one correspondence, and then connected by the connecting members as described in embodiment 1.

Example 9

In this embodiment, the connecting member described in embodiment 1 is used for connecting the blocks 85 of the culvert, and the specific connecting method is the same as that of embodiment 2, except that in this embodiment, the blocks 85 are the prefabricated members 1. As shown in fig. 39, the blocks 85 are connected into a ring shape by connectors in the circumferential direction, and the connecting nuts 10 corresponding to each other are respectively arranged at the joints of every two blocks 85, and then the blocks are connected by the connectors as described in embodiment 1.

As shown in fig. 40, the blocks 85 are axially connected into a bar shape, and the joints are also respectively provided with one-to-one corresponding connecting nuts 10, and then are connected by the connecting member as described in embodiment 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A connecting piece comprises two connecting nuts (10), and is characterized in that the connecting nuts (10) comprise a connecting end (11) and a tensioning end (12) which are connected with each other, internal threads are arranged on the inner wall of the connecting end (11), through holes which are communicated with each other are formed in the tensioning end (12) and the connecting end (11), and the aperture of the inner wall of the tensioning end (12) is smaller than that of the inner wall of the connecting end (11), so that a clamping table (13) capable of clamping a swelling part on a connecting rod is formed at the joint of the inner wall of the tensioning end (12) and the inner wall of the connecting end (11);

one of the connecting nuts (10) is internally screwed with the plug connector (20), the other connecting nut (10) is internally screwed with the intermediate nut (30), the clamping table (13) of the connecting nut (10) screwed with the intermediate nut (30) is sequentially provided with the elastic component (31) and the positioning clamping ring (32), and when the plug connector (20) penetrates through the intermediate nut (30) and is inserted into the positioning clamping ring (32), the positioning clamping ring (32) can clamp the plug connector (20) so as to connect the two connecting nuts (10) with each other;

the middle nut (30) is provided with external threads, a clamping ring positioning cavity (33) and a clamping ring stopping cavity (34) connected with the clamping ring positioning cavity (33) are formed in the inner wall of one end, close to the elastic assembly (31), of the middle nut (30), the positioning clamping ring (32) is tightly attached to the inner wall of the clamping ring positioning cavity (33) through the elastic action of the elastic assembly (31), and when the positioning clamping ring (32) moves towards the clamping ring stopping cavity (34) along the inner wall of the clamping ring positioning cavity (33) and touches the clamping ring stopping cavity (34), the clamping ring stopping cavity (34) can prevent the positioning clamping ring (32) from moving, so that the positioning clamping ring (32) is prevented from sliding out of the clamping ring positioning cavity (33);

the inclination of the inner wall of the snap ring positioning cavity (33) is different from that of the inner wall of the snap ring stopping cavity (34).

2. The connecting piece of claim 1, wherein an included angle is formed between the inner wall of the snap ring positioning cavity (33) and the inner wall of the snap ring stopping cavity (34) and is an obtuse angle, the positioning snap ring (32) comprises a plurality of positioning clamping pieces (321) which are in block shapes and have the same size, and the plurality of positioning clamping pieces (321) are uniformly distributed in the circumferential direction along the axial lead of the middle nut (30) and surround to form the positioning snap ring (32).

3. The connecting piece according to claim 2, wherein the inner wall of the end of the middle nut (30) is further provided with an elastic member positioning cavity (35) connected with the snap ring stopping cavity (34), the elastic member positioning cavity (35) is matched with the elastic member (31), and when the middle nut (30) is screwed into the connecting nut (10), the end of the elastic member (31) is just clamped into the elastic member positioning cavity (35);

the elastic assembly (31) comprises a spring (311) and a spring pressing sheet (312) pressed on the spring (311), and the positioning clamping ring (32) is pressed on the spring pressing sheet (312).

4. A connector according to any one of claims 1-3, characterized in that the connector (20) has a connector body end (21) at one end and a connector (22) at the other end, an inwardly recessed clamping groove (23) is formed at the joint of the connector body end (21) and the connector (22), the outer wall of the clamping groove (23) is provided with at least one tension collar (24) adapted to the inner wall of the retainer ring (32), and when the connector (20) is inserted into the retainer ring (32), the tension collar (24) forms a snap fit with the inner wall of the retainer ring (32).

5. Prefabricated element according to any of the claims 1 to 4, characterised in that it comprises several individual prefabricated elements (1) interconnected by means of said connecting elements.

6. Prefabricated element according to claim 5, characterized in that said prefabricated elements (1) are mutually connected in such a way as to form a pile body according to a large-section prefabricated element and a small-section prefabricated element which are alternated.

7. The prefabricated component of claim 5 or 6, wherein a plurality of connecting nuts (10) are respectively fixed at two ends of the prefabricated component (1), the connecting nuts (10) at two ends of the prefabricated component (1) correspond to each other one by one and are connected and fixed by connecting rods (19), and the joint of every two prefabricated components (1) is connected and fixed by at least one connecting piece.

8. The prefabricated member according to claim 5 or 6, wherein one end of each prefabricated member (1) is provided with a plurality of connecting nuts (10), the other end of each prefabricated member is provided with a connecting end plate (40), the connecting end plate (40) is provided with tensioning hole mechanisms (41) corresponding to the connecting nuts (10) in a one-to-one mode, the tensioning hole mechanisms (41) and the connecting nuts (10) are fixedly connected through connecting rods (19), and two adjacent prefabricated members (1) are fixedly connected through connecting pieces or connecting end plates (40).

9. The prefabricated member according to claim 8, wherein the outer wall of the connecting end plate (40) is provided with locking hole mechanisms (42) along the circumferential direction of the connecting end plate (40), when two prefabricated members (1) are connected through the connecting end plate, the locking hole mechanisms (42) are internally provided with locking block assemblies (43) which are respectively inserted into the two locking hole mechanisms (42) at two ends and can lock the two connecting end plates (40) with each other, the tensioning hole mechanisms (41) comprise an expanded portion hole (411) and a tensioning hole (412) which are connected with each other, and the expanded portion hole (411) and the tensioning hole (412) form an 8-shaped structure;

the locking hole mechanism (42) comprises at least one locking hole (421), the locking block assembly (43) comprises two locking blocks (431), the shapes of the locking blocks (431) are matched with the locking hole (421), and the two locking blocks (431) are fixedly connected through bolts;

one side of the locking hole (421) far away from the prefabricated part (1) is provided with a locking groove (422) which is sunken into the locking hole (421), and the locking block (431) is provided with a locking positioning block (432) which is matched with the locking groove (422) in shape.

10. The prefabricated component according to claim 5 or 6, wherein both ends of each prefabricated component (1) are provided with concave-convex clamping mechanisms (60), and when two adjacent prefabricated components (1) are close to each other, the concave-convex clamping mechanisms (60) can enable the two prefabricated components (1) to be clamped and matched; unsmooth ka tai mechanism (60) including setting up concave station (61) in prefab (1) one end and setting up boss (62) at the prefab (1) other end, shape, the size of boss (62) and concave station (61) match and fit, when boss (62) inserted concave station (61), boss (62) and concave station (61) formed the joint cooperation.