CN219080705U - Assembled prefabricated floor slab capable of carrying water for operation - Google Patents

Abstract

The utility model relates to the field of buildings, in particular to an assembled precast floor slab capable of carrying out water operation, which comprises two groups of waterproof composite boards and assembling devices, wherein the two groups of waterproof composite boards are respectively positioned at two sides of the assembling devices, the assembling devices are connected with the two groups of waterproof composite boards, the waterproof composite boards comprise a base plate, a pouring steel structure is arranged at the top of the base plate, and the floor slab is arranged at the top of the pouring steel structure.

Description

Assembled prefabricated floor slab capable of carrying water for operation

Technical Field

The utility model relates to the field of buildings, in particular to an assembled prefabricated floor slab capable of carrying water.

Background

Prefabricated floor slabs are the modules or plates used in engineering, and are called prefabricated slabs because the prefabricated slabs are produced and formed by producing concrete prefabricated parts in a prefabricated field and are directly transported to a construction site for installation.

The existing prefabricated floor slab has the following defects:

1. because the precast floor slab is a concrete precast member produced and formed in a precast field, compared with a floor slab directly manufactured in a construction field, the precast floor slab has smaller bearing stress and is difficult to bear larger pressure;

2. because the specification of the precast floor slabs is certain, when the precast floor slabs are assembled at a construction site, the precast floor slabs need to be fixed by other assembling devices, the existing assembling is usually limited by adopting reinforced concrete, and when the precast floor slabs bear large force, two adjacent precast floor slabs can be broken;

3. when two adjacent groups of precast floor slabs are assembled, the waterproof performance is poor due to non-integrated manufacturing, the service time is too long, and water leakage and other phenomena can occur;

therefore, it is necessary to invent an assembled prefabricated floor slab capable of carrying water.

Disclosure of Invention

Therefore, the utility model provides the assembled precast floor slab capable of carrying out water operation, two groups of adjacent waterproof composite boards can be fixed together by utilizing the assembling device to complete the assembly of a plurality of precast floor slabs, when carrying out water operation, liquid water can permeate into a pouring steel structure through the base plate and the assembling plate, and water seepage can bypass a water stop steel plate, so that the water seepage path is increased, the water stop steel plate has a waterproof effect, and the precast floor slab has a waterproof effect, so that the problems that the existing precast floor slab is small in bearing stress and water leakage and the like can occur after the service time is too long are solved.

In order to achieve the above object, the present utility model provides the following technical solutions: the assembly type prefabricated floor slab capable of carrying out water operation comprises two groups of waterproof composite boards and assembly devices, wherein the two groups of waterproof composite boards are respectively positioned at two sides of the assembly devices, the assembly devices are connected with the two groups of waterproof composite boards, the waterproof composite boards comprise base boards, casting steel structures are arranged at the tops of the base boards, the floor slab is arranged at the tops of the casting steel structures, and the assembly plates are arranged at the bottoms of the base boards;

the top of the substrate is provided with a plurality of groups of positioning sleeves which are arranged in a matrix manner, and the inside of each group of positioning sleeves is provided with threads and is fixedly connected with the inner wall of the top of the substrate;

the pouring steel structure comprises a first longitudinal binding rib, six groups of longitudinal binding ribs are arranged and fixedly connected with the top of a base plate, a second transverse binding rib is arranged at the top of the first longitudinal binding rib, a plurality of groups of transverse binding ribs are fixedly connected with the top of the first longitudinal binding rib, a plurality of groups of transverse binding ribs are arranged on the second transverse binding rib and are vertically arranged on a transverse plane, a plurality of groups of transverse binding ribs are arranged at the top of the second transverse binding rib, a third longitudinal binding rib is arranged on the third longitudinal binding rib and is fixedly connected with the top of the second transverse binding rib, a plurality of groups of inclined supporting binding ribs are fixedly arranged at the top of the third longitudinal binding rib and the top of the second transverse binding rib, and four groups of inclined supporting binding ribs positioned at the same position are arranged in a four-prismatic-cone shape and have cone angles positioned on the first longitudinal binding rib;

the pouring steel structure further comprises a plurality of groups of long studs, the long studs are respectively matched with the plurality of groups of positioning sleeves, the same water stop steel plate is fixedly arranged at the three tops of the longitudinal binding ribs, and the plurality of groups of long studs and the inclined support binding ribs are fixedly penetrated through the water stop steel plate.

Preferably, the top of the assembly plate is fixedly connected with the bottom of the base plate, the left side of the assembly plate is provided with a first matching groove, the right side of the assembly plate is provided with a second matching groove, and the first matching groove is matched with the second matching groove for use and the side wall is completely attached.

Preferably, the floor bottom is fixedly connected with the tops of the long studs of the plurality of groups and the tops of the long studs of the plurality of groups are fixedly connected with the floor bottom in a penetrating manner, the tops of the inclined support binding bars are fixedly connected with the floor bottom, the tops of the two sides of the floor are respectively provided with a receiving groove, the two groups of the receiving grooves are respectively provided with a first hexagonal pin hole, the first hexagonal pin holes are respectively provided with the plurality of groups and are linearly arranged in an array manner, the middle parts of the two sides of the floor are respectively provided with a receiving groove, the groove width of the receiving groove is the same as the groove width of the receiving groove, and the plurality of groups of the first hexagonal pin holes are respectively penetrated by the receiving grooves.

Preferably, the assembly device comprises a special-shaped plugboard, the special-shaped plugboard is positioned between two adjacent groups of floors, two groups of oblique matching grooves are formed in two sides of the bottom of the special-shaped plugboard, the oblique matching grooves are respectively matched with two adjacent groups of water stop steel plate side walls, a sliding groove is formed in the top of the special-shaped plugboard, two sides of the special-shaped plugboard are respectively matched with two adjacent groups of inserted grooves, two hexagonal pin holes are respectively formed in two sides of the special-shaped plugboard, a plurality of groups of the two hexagonal pin holes are respectively in one-to-one correspondence with the hexagonal pin holes, T-shaped sliding boards are connected in the sliding groove in a sliding mode, two sides of the T-shaped sliding boards are respectively in sliding connection with the two adjacent groups of the assembled grooves, and hexagonal pins are arranged on two sides of the top of the T-shaped sliding boards and are respectively matched with the first hexagonal pin holes and the second hexagonal pin holes.

The beneficial effects of the utility model are as follows:

1. welding a plurality of groups of longitudinal binding ribs onto a substrate, welding a transverse binding rib onto a longitudinal binding rib, welding a longitudinal binding rib onto a transverse binding rib, welding a water-stopping steel plate at a designated position on the longitudinal binding rib, inserting a plurality of groups of inclined support binding ribs and long studs onto the water-stopping steel plate, welding a plurality of groups of inclined support binding ribs onto the designated longitudinal binding rib, inserting the long studs into a positioning sleeve to enable the long studs to be meshed, thereby completing the assembly of a pouring steel structure, welding a floor slab, the inclined support binding ribs and the long studs after the assembly is completed, completing the assembly of the water-stopping composite plate, coating pure acrylic acid polymer emulsion as a base material on the top of the water-stopping steel plate after the assembly is completed, adding an additive to prepare a single-component water-emulsion waterproof coating, pouring cement between the water-stopping steel plate and the substrate, after the pouring is completed, pouring cement between the water-stopping steel plate and the floor slab, and forming a prefabricated floor slab meeting the use requirements after the pouring is completed, and liquid assembly penetrating the substrate and the water-stopping steel plate and bypassing the water-stopping steel plate, thereby increasing the water seepage and water-stopping path;

2. inserting special-shaped plugboards between two groups of precast floor slabs, enabling two groups of oblique fit grooves at the bottoms of the special-shaped plugboards to be matched with the side edges of the water stop steel plates on the two groups of precast floor slabs, enabling two sides of the special-shaped plugboards to be matched with the slots, simultaneously inserting T-shaped sliding boards into the sliding grooves on the special-shaped plugboards, enabling the T-shaped sliding boards to be attached to the special-shaped plugboards and the side walls of the floor slabs, at the moment, aligning the first hexagonal pin holes with the second hexagonal pin holes, inserting the second hexagonal pin holes, and installing the T-shaped sliding boards and the special-shaped plugboards on the floor slabs, so that the assembled precast floor slabs meeting the requirements are formed.

Drawings

FIG. 1 is a schematic structural view of the prefabricated floor slab according to the present utility model;

FIG. 2 is a schematic view of the assembly device according to the present utility model;

fig. 3 is a schematic structural view of the waterproof composite board provided by the utility model;

FIG. 4 is an enlarged view of the portion A of FIG. 2 provided by the present utility model;

fig. 5 is a schematic diagram of an installation structure of a pouring steel structure on a substrate;

fig. 6 is a schematic structural diagram of a casting steel structure provided by the utility model;

fig. 7 is a view showing the installation position of the water stop steel plate according to the present utility model.

In the figure: waterproof composite sheet 100, base plate 101, positioning sleeve 102, pouring steel structure 110, indulge tie bar one 111, horizontal tie bar two 112, indulge tie bar three 113, bearing diagonal tie bar 114, long double-screw bolt 115, stagnant water steel sheet 116, assembly plate 120, mating groove one 121, mating groove two 122, floor 130, dress groove 131, hexagonal pinhole one 132, receive slot 133, assembly device 200, dysmorphism picture peg 210, bearing diagonal mating groove 211, spout 212, hexagonal pinhole two 213, T slide 214, hexagonal pin 215.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-7, the assembled prefabricated floor slab capable of carrying out water operation provided by the utility model comprises a waterproof composite board 100 and an assembling device 200, wherein the waterproof composite board 100 is provided with two groups and is respectively positioned at two sides of the assembling device 200, the assembling device 200 is connected with the two groups of waterproof composite boards 100, the waterproof composite board 100 comprises a substrate 101, a pouring steel structure 110 is arranged at the top of the substrate 101, a floor slab 130 is arranged at the top of the pouring steel structure 110, and an assembling plate 120 is arranged at the bottom of the substrate 101;

the top of the base plate 101 is provided with positioning sleeves 102, the positioning sleeves 102 are provided with a plurality of groups of positioning sleeves which are arranged in a matrix, the inside of each group of positioning sleeves 102 is provided with threads and is fixedly connected with the inner wall of the top of the base plate 101, the base plate 101 provides support for the positioning sleeves 102, and the positioning sleeves 102 can install the floor 130 on the base plate 101 through long studs 115;

the pouring steel structure 110 comprises a first longitudinal binding rib 111, six groups of longitudinal binding ribs 111 are arranged and fixedly connected with the top of a base plate 101, the base plate 101 provides support for the first six groups of longitudinal binding ribs 111, the tops of the first six groups of longitudinal binding ribs 111 are respectively provided with a second transverse binding rib 112, the second transverse binding ribs 112 are respectively provided with a plurality of groups and fixedly connected with the top of the first longitudinal binding rib 111, the first longitudinal binding rib 111 provides support for the second transverse binding rib 112, the second plurality of groups of transverse binding ribs 112 and the first longitudinal binding rib 111 are vertically arranged on a transverse plane, the second transverse binding rib 112 and the first longitudinal binding rib 111 are vertically arranged so as to facilitate pouring cement, the cement after pouring is uniformly distributed, gaps are prevented from occurring inside after pouring cement, the waterproof performance of a floor slab is improved, the third plurality of groups of transverse binding ribs 112 are respectively provided with a third longitudinal binding rib 113, the third longitudinal binding rib 113 is respectively fixedly connected with the top of the second transverse binding rib 112, the third longitudinal binding rib 113 is provided with a support for the third longitudinal binding rib 113, the third longitudinal binding rib 113 is vertically arranged on the transverse plane, the third transverse binding rib 112 is vertically arranged on the same as the second transverse plane, the second transverse binding rib 112 is vertically arranged on a oblique cone, the second longitudinal binding rib 113 is vertically arranged on the top of the second binding rib 114 is vertically arranged on the same side as the fourth binding rib 114, the fourth binding rib 114 is vertically arranged on the oblique cone, the second binding rib 114 is positioned on the fourth binding rib 114 and can form a taper cone, and the fourth binding rib 114 is positioned on the top of the fourth binding rib 114 and can be vertically arranged on the top and is positioned on the top of the fourth binding rib 114, and can form a fourth binding rib and is positioned on the front and a fourth supporting cone, and can be placed;

the pouring steel structure 110 further comprises a long stud 115, the long stud 115 is provided with a plurality of groups and is respectively matched with the plurality of groups of positioning sleeves 102, the long stud 115 can be fixed on the base plate 101 through the matching of the positioning sleeves 102 and the long stud 115, the same water stop steel plate 116 is fixedly arranged at the top of the three groups of longitudinal binding ribs three 113, the longitudinal binding ribs three 113 can provide support for the water stop steel plate 116, the plurality of groups of long studs 115 and the inclined support binding ribs 114 are fixedly penetrated through the water stop steel plate 116, when the water carrying work is carried out, liquid water can permeate into the pouring steel structure 110 through the base plate 101 and the assembly plate 120, the water seepage can bypass the water stop steel plate 116, thereby increasing the seepage path of the water, enabling the water stop steel plate 210 to have a waterproof effect, specifically, the plurality of groups of longitudinal binding ribs one 111 are welded on the base plate 101, the transverse binding rib two 112 are welded on the longitudinal binding rib three 113 are welded on the transverse binding rib two 112, simultaneously welding a water-stopping steel plate 116 on a longitudinal binding rib III 113 according to a designated position, inserting a plurality of groups of inclined support binding ribs 114 and long studs 115 on the water-stopping steel plate 116, welding a plurality of groups of inclined support binding ribs 114 on a designated longitudinal binding rib I111, simultaneously inserting the long studs 115 into a positioning sleeve 102 to be meshed, thereby completing the assembly of the pouring steel structure 110, welding a floor slab 130, the inclined support binding ribs 114 and the long studs 115 after the assembly is completed, completing the assembly of the waterproof composite plate 100, coating pure acrylic polymer emulsion as a base material on the top of the water-stopping steel plate 116 after the assembly is completed, adding an additive to prepare a single-component water-emulsion waterproof coating, pouring cement between the water-stopping steel plate 116 and a base plate 101, pouring cement between the water-stopping steel plate 116 and the floor slab 130 after the single-component water-emulsion waterproof coating on the top of the water-stopping steel plate 116 is dried after the pouring is completed, and after pouring is completed, the prefabricated floor slab meeting the use requirement can be formed.

Further, the top of the assembly plate 120 is fixedly connected with the bottom of the substrate 101, the assembly plate 120 provides support for the substrate 101, the left side of the assembly plate 120 is provided with a first matching groove 121, the right side of the assembly plate 120 is provided with a second matching groove 122, the first matching groove 121 is matched with the second matching groove 122 for use, the side walls of the first matching groove 121 and the second matching groove 122 are completely attached, two adjacent groups of waterproof composite boards 100 can be combined together through the matching of the first matching groove 121 and the second matching groove 122, and then the two adjacent groups of waterproof composite boards 100 can be fixedly connected through the assembly device 200.

Further, the bottom of the floor 130 is fixedly connected with the tops of the multiple groups of long studs 115, the tops of the multiple groups of long studs 115 fixedly penetrate through the bottom of the floor 130, the multiple groups of long studs 115 provide support for the floor 130, the tops of the multiple groups of diagonal support bundling ribs 114 are fixedly connected with the bottom of the floor 130, the diagonal support bundling ribs 114 also provide support for the floor 130, the tops of two sides of the floor 130 are provided with the assembled slots 131, the two groups of assembled slots 131 are provided with first hexagonal pin holes 132, the first hexagonal pin holes 132 are provided with multiple groups and are distributed in a linear array, the middle parts of two sides of the floor 130 are provided with second slots 133, the slot widths of the second slots 133 are the same as the slot widths of the assembled slots 131, and the first hexagonal pin holes 132 of the multiple groups penetrate through the second slots 133.

Further, the assembly device 200 comprises a special-shaped plugboard 210, the special-shaped plugboard 210 is positioned between two adjacent groups of floors 130, two sides of the bottom of the special-shaped plugboard 210 are respectively provided with inclined matching grooves 211, the two groups of inclined matching grooves 211 are respectively matched with the side walls of the two adjacent groups of water stop steel plates 116, the special-shaped plugboard 210 can fix the two adjacent groups of water stop steel plates 116, meanwhile, can absorb liquid water permeated on the water stop steel plates 116 and prevent the liquid water from permeating into the floors 130, the top of the special-shaped plugboard 210 is provided with sliding grooves 212, two sides of the special-shaped plugboard 210 are respectively matched with the two adjacent groups of receiving slots 133, the special-shaped plugboard 210 can fix the two adjacent groups of waterproof composite boards 100 together by being matched with the two groups of receiving slots 133, two sides of the special-shaped plugboard 210 are respectively provided with two groups of hexagonal pin holes 213, the two hexagonal pin holes 213 are respectively corresponding to the first hexagonal pin holes 132 one by one, the T-shaped slide plate 214 is slidably connected in the slide groove 212, two sides of the T-shaped slide plate 214 are respectively and slidably connected with two adjacent groups of assembled grooves 131, two sides of the top of the T-shaped slide plate 214 are respectively provided with a plurality of groups of hexagonal pins 215, the hexagonal pins 215 are respectively matched with the first 132 and the second 213 hexagonal pin holes, the T-shaped slide plate 214 and the special-shaped insert plate 210 can be fixed together by inserting the hexagonal pins 215 into the first 132 and the second 213 hexagonal pin holes, two adjacent groups of waterproof composite plates 100 and the special-shaped insert plate 210 can be fixed together at the same time, thereby completing the installation of the two adjacent groups of waterproof composite plates 100, in particular, the special-shaped insert plate 210 is inserted between the two groups of prefabricated floorslabs, the two groups of oblique matching grooves 211 at the bottom of the special-shaped insert plate 210 are matched with the sides of the water stop steel plates 116 on the two groups of prefabricated floorslabs, the two sides of the special-shaped insert plate 210 are matched with the assembled by the inserted grooves 133, meanwhile, a T-shaped slide plate 214 is inserted into a slide groove 212 on the special-shaped insertion plate 210, so that the T-shaped slide plate 214 is attached to the special-shaped insertion plate 210 and the side wall of the floor slab 130, at the moment, the first hexagonal pin hole 132 is aligned with the second hexagonal pin hole 213, and then a hexagonal pin 215 is inserted, so that the T-shaped slide plate 214 and the special-shaped insertion plate 210 are mounted on the floor slab 130, and the two groups of prefabricated floor slabs are assembled to form the prefabricated floor slab meeting the requirements.

The application process of the utility model is as follows: a plurality of groups of longitudinal binding ribs 111 are welded to a base plate 101 by a person skilled in the art, meanwhile, a transverse binding rib 112 is welded to the longitudinal binding rib 111, a longitudinal binding rib 113 is welded to the transverse binding rib 112, a water-stop steel plate 116 is welded on the longitudinal binding rib 113 according to a designated position, a plurality of groups of inclined support binding ribs 114 and long studs 115 are inserted into the water-stop steel plate 116, a plurality of groups of inclined support binding ribs 114 are welded to the designated longitudinal binding rib 111, and the long studs 115 are inserted into a positioning sleeve 102 to be meshed, so that the assembly of a cast steel structure 110 is completed, after the assembly is completed, a floor slab 130, the inclined support binding ribs 114 and the long studs 115 are welded, the assembly of the waterproof composite plate 100 is completed, the top of the water-stop steel plate 116 is coated with pure acrylic polymer emulsion as a base material, an additive is added to prepare a one-component water-emulsion waterproof coating, cement is cast between the water-stop steel plate 116 and the base plate 101, after the casting is completed, and after the one-component water-emulsion waterproof coating at the top of the water-stop steel plate 116 is dried, the floor slab is cast between the cement and the cement is cast 130, and the floor slab is cast to meet the use requirements after the casting is completed;

inserting special-shaped plugboards 210 between two groups of precast floor slabs, enabling two groups of oblique fit grooves 211 at the bottom of the special-shaped plugboards 210 to be matched with the side edges of water stop steel plates 116 on the two groups of precast floor slabs, enabling two sides of the special-shaped plugboards 210 to be matched with the receiving slots 133, simultaneously inserting T-shaped sliding boards 214 into sliding grooves 212 on the special-shaped plugboards 210, enabling the T-shaped sliding boards 214 to be attached to the special-shaped plugboards 210 and the side walls of the floor slabs 130, aligning the first hexagonal pin holes 132 with the second hexagonal pin holes 213, inserting the second hexagonal pins 215, and installing the T-shaped sliding boards 214 and the special-shaped plugboards 210 on the floor slabs 130, so that the assembled precast floor slabs meeting requirements are formed.

The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.

Claims (4)

1. The utility model provides a but prefabricated floor of water operation's assembled, includes waterproof composite sheet (100) and assembly quality (200), waterproof composite sheet (100) are equipped with two sets of and are located assembly quality (200) both sides respectively, assembly quality (200) are connected its characterized in that with two sets of waterproof composite sheet (100): the waterproof composite board (100) comprises a base board (101), wherein a pouring steel structure (110) is arranged at the top of the base board (101), a floor slab (130) is arranged at the top of the pouring steel structure (110), and an assembly board (120) is arranged at the bottom of the base board (101);

the top of the base plate (101) is provided with a positioning sleeve (102), the positioning sleeves (102) are provided with a plurality of groups of positioning sleeves which are arranged in a matrix manner, and the inside of each group of positioning sleeves (102) is provided with threads and is fixedly connected with the inner wall of the top of the base plate (101);

the pouring steel structure (110) comprises a first longitudinal binding rib (111), six groups of longitudinal binding ribs (111) are fixedly connected with the top of a base plate (101), a second transverse binding rib (112) is arranged at the top of the first longitudinal binding rib (111), a plurality of groups of transverse binding ribs (112) are fixedly connected with the top of the first longitudinal binding rib (111), a plurality of groups of transverse binding ribs (112) and the first longitudinal binding rib (111) are vertically arranged on a transverse plane, a plurality of groups of transverse binding ribs (112) are respectively provided with a third longitudinal binding rib (113), the third longitudinal binding ribs (113) are respectively fixedly connected with the top of the second transverse binding rib (112), the third longitudinal binding ribs (113) and the second transverse binding rib (112) are respectively and vertically arranged on the transverse plane, a plurality of groups of inclined supporting binding ribs (114) are respectively fixedly arranged at the tops of the first longitudinal binding ribs (111) and the second longitudinal binding rib (111), and four groups of inclined supporting ribs (114) are respectively arranged at the same position and are arranged on the first longitudinal binding ribs (114);

the pouring steel structure (110) further comprises long studs (115), the long studs (115) are provided with a plurality of groups and are respectively matched with the plurality of groups of positioning sleeves (102), the same water-stopping steel plate (116) is fixedly arranged at the top of the three longitudinal binding ribs (113), and the plurality of groups of long studs (115) and the inclined support binding ribs (114) are fixedly penetrated through the water-stopping steel plate (116).

2. A water workable fabricated precast floor panel as claimed in claim 1, wherein: the top of the assembly plate (120) is fixedly connected with the bottom of the base plate (101), a first matching groove (121) is formed in the left side of the assembly plate (120), a second matching groove (122) is formed in the right side of the assembly plate (120), and the first matching groove (121) is matched with the second matching groove (122) for use and the side wall of the assembly plate is completely attached.

3. A water workable fabricated precast floor panel as claimed in claim 1, wherein: floor (130) bottom and multiunit long double-screw bolt (115) top fixed connection and multiunit long double-screw bolt (115) top fixed run through floor (130) bottom, multiunit bearing tie muscle (114) top all with floor (130) bottom fixed connection, receive dress groove (131) have all been seted up at floor (130) both sides top, two sets of receive and be equipped with hexagonal pinhole one (132) on dress groove (131), hexagonal pinhole one (132) are equipped with multiunit and are linear array arrangement, receive slot (133) have all been seted up at floor (130) both sides middle part, receive slot (133) groove width and receive dress groove (131) groove width the same, multiunit hexagonal pinhole one (132) all runs through and receives slot (133).

4. A water workable fabricated precast floor panel as claimed in claim 3, in which: the assembly device (200) comprises a special-shaped inserting plate (210), wherein the special-shaped inserting plate (210) is positioned between two adjacent groups of floors (130), oblique matching grooves (211) are formed in two sides of the bottom of the special-shaped inserting plate (210), two groups of oblique matching grooves (211) are respectively matched with two adjacent groups of water stop steel plates (116) in use, sliding grooves (212) are formed in the top of the special-shaped inserting plate (210), two sides of the special-shaped inserting plate (210) are respectively matched with two adjacent groups of receiving grooves (133), two hexagonal pin holes (213) are formed in two sides of the special-shaped inserting plate (210), multiple groups of hexagonal pin holes (213) are respectively arranged and are in one-to-one correspondence with one hexagonal pin holes (132), T-shaped sliding plates (214) are connected in sliding mode in the sliding grooves (212), hexagonal pins (215) are respectively arranged on two sides of the top of the T-shaped sliding plates (214), and multiple groups of hexagonal pins (215) are respectively matched with the first hexagonal pin holes (132) and the second hexagonal pin holes (213).

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