Prefabricated part combination and connecting method thereof, prefabricated part and connecting piece thereof

Abstract

According to the prefabricated part combination, the lower end of an upper prefabricated part is higher than the upper end of a lower prefabricated part so that a pouring opening can be formed; the end part of the transverse prefabricated part is inserted into the gap cavity and lapped at the upper end of the lower prefabricated part, and the upper side surface of the end part of the transverse prefabricated part is lower than the lower end surface of the upper prefabricated part to form a pouring gate; the vertical connecting piece comprises a first connector, a second connector and a connecting rod, the connecting rod is in threaded connection with the second connector and matched with the first connector in an inserted mode so as to transmit pulling force and pressure in the vertical direction, and the first connector and the second connector are connected to a main rib of the upper prefabricated part and a main rib of the lower prefabricated part; the middle rod part is provided with an operation part used for operating the connecting rod to rotate, and the operation part and the pouring opening are arranged as high as each other. The prefabricated part combination can effectively solve the problem that transverse and longitudinal prefabricated parts are inconvenient to connect. The invention further discloses a connecting piece of the prefabricated parts, the prefabricated parts and a connecting method of the prefabricated part combination.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of building technology, and more specifically, to a prefabricated component combination, a prefabricated component connector used in the prefabricated component combination, a prefabricated component connector, a prefabricated component, and a method for connecting the prefabricated component combination. Background Art

[0002] During the construction of prefabricated buildings, it is necessary to support the upper building structure through prefabricated columns. The technical solution generally adopted by the common prefabricated building structure is that when pre-embedded steel bars are extended from the upper and lower ends of the prefabricated support column, they are respectively extended for a distance. At the same time, for the horizontal beams for supporting the floor slabs that are horizontally overlapped above the support column, the pre-embedded steel bars are also extended for a distance from both ends of the beams during prefabrication. When assembling, the prefabricated column that plays a vertical supporting role is generally erected first, and its lower end is fixed firmly by pouring and other methods, and then the supporting beams or supporting longitudinal beams for horizontal support and longitudinal support are overlapped on the top thereof. The ends of the two supporting beams close to the support column are overlapped on the top of the support column respectively, and the ends of the two supporting longitudinal beams close to the support column are also overlapped on the top of the support column respectively, and the steel bars extending from the ends of the beams and the longitudinal beams are bundled. Similarly, the top of the prefabricated support column below the supporting beam and the supporting longitudinal beam and the bottom of the prefabricated support column above are also overlapped by tying the end steel bars, and then the part where the steel bars are tied is cast in place with concrete.

[0003] There are many problems with the above construction method. First, the embedded steel bars extending from the ends of the precast concrete components are prone to rust and damage during transportation and construction, which has an adverse effect on the subsequent construction quality. At the same time, multiple steel bars extending outward are easy to cause harm to construction workers, which is not conducive to ensuring their life safety and health. Secondly, since the supporting crossbeams and supporting longitudinal beams are subject to large forces, the steel bars at the overlapped parts are only tied together, and the tensile strength and mechanical properties are not good, which poses a safety hazard. In addition, the bundling process is extremely complicated and time-consuming.

[0004] In summary, how to effectively solve the problem of inconvenient connection of horizontal and vertical prefabricated components is a problem that technicians in this field urgently need to solve. Summary of the invention

[0005] In view of this, the first purpose of an embodiment of the present invention is to provide a prefabricated component combination, which can effectively solve the problem of inconvenient connection of horizontal and vertical prefabricated components. The second purpose of an embodiment of the present invention is to provide a connecting piece of prefabricated components used in a prefabricated component combination. The third purpose of an embodiment of the present invention is to provide a connecting piece of prefabricated components. The fourth purpose of an embodiment of the present invention is to provide a connection method for a prefabricated component combination; the fifth purpose of an embodiment of the present invention is to provide a prefabricated component.

[0006] In order to achieve the above first objective, the embodiment of the present invention provides the following technical solutions:

[0007] A prefabricated component assembly, comprising an upper prefabricated component, a lower prefabricated component, a transverse prefabricated component and a plurality of vertical connectors;

[0008] The lower end of the upper prefabricated component is higher than the upper end of the lower prefabricated component, so that a gap cavity is formed therebetween;

[0009] The end of the transverse prefabricated component is inserted into the gap cavity and overlapped on the upper end of the lower prefabricated component, and the upper side surface of the end of the transverse prefabricated component is lower than the lower end surface of the upper prefabricated component to form a gap, so as to be able to serve as a pouring port;

[0010] The vertical connector includes a first joint, a second joint and a connecting rod, the connecting rod includes an intermediate rod portion, a threaded connection portion connected to one end of the intermediate rod portion and an insert portion connected to the other end of the intermediate rod portion, the length of the intermediate rod portion is not less than the height of the transverse prefabricated component in the up-down direction, the threaded connection portion is connected to the second joint by threads extending up-down, the insert portion is plugged and matched with the first joint by a plug and an elastic clamping hole up-down, and the plug is clamped by the elastic clamping hole to transmit tension and pressure in the up-down direction, one of the first joint and the second joint is connected to the main reinforcement of the upper prefabricated component, and the other is connected to the main reinforcement of the lower prefabricated component;

[0011] The intermediate rod portion has an operating portion for operating the connection rod to rotate. The operating portion is arranged at the same height as the pouring port and is used for an operating tool to pass through the pouring port to operate the operating portion.

[0012] In the above-mentioned prefabricated component combination, a long vertical connector is provided so that when the transverse prefabricated component needs to be installed, the upper prefabricated component and the lower prefabricated component can still be connected by using a plug-in vertical connector, and at the same time, the operating part on the middle rod is moved up to be set at the same height as the pouring port. When the above-mentioned vertical connector is used, the transverse prefabricated component can be installed first, and then the upper prefabricated component can be installed, and finally the middle rod can be operated through the pouring port to complete the final installation. This operation process is simple and convenient. In summary, the prefabricated component combination can effectively solve the problem of inconvenient connection of transverse and longitudinal prefabricated components.

[0013] In some embodiments, the first joint includes a mounting tube, an elastic device and a split positioning snap ring; the positioning snap ring is supported by the elastic device to prevent the split parts of the positioning snap ring from moving away from each other, so that the snap opening formed by each of the split parts is the elastic snap hole; the barrel cavity of the mounting tube is the mounting hole, and the positioning snap ring is installed in the mounting hole; one end of the split part abuts against the mounting tube through an inclined surface to guide the positioning snap ring to expand outward to expand the elastic snap hole, and the other end of the split part abuts against the elastic device to prevent the positioning snap ring from expanding outward.

[0014] In some embodiments, the mounting tube is embedded in the upper end surface of the lower prefabricated component and connected to the main reinforcement of the lower prefabricated component, and the insertion portion is the plug and is connected to the lower end of the intermediate rod; the second joint includes a threaded sleeve, which is embedded in the lower end surface of the upper prefabricated component and connected to the main reinforcement of the upper prefabricated component, and the threaded connection portion is a stud and is connected to the upper end of the intermediate rod, and the threaded connection portion is threadedly connected to the inner threaded hole of the threaded sleeve.

[0015] In some embodiments, it also includes a stop sleeve, which is inserted into the mounting hole and matched with the internal thread on the wall of the mounting hole; the positioning clamp is indirectly abutted against the mounting tube through the stop sleeve; the inner end of the stop sleeve forms a reaming slope, which abuts against the corresponding abutment slope of the clamp, so as to guide the radial and circumferential movements of the clamp during the outward expansion process; the mounting hole is sequentially arranged along the axial direction with a first wall portion, a second wall portion and a third wall portion, and the internal thread is arranged on the first wall portion; the inner diameter of the second wall portion is larger than the inner diameter of the first wall portion and the inner diameter of the third wall portion, so that a groove is formed between the inner wall of the second wall portion and the adjacent end walls of the first wall portion and the third wall portion; the groove has a radial depth and an axial length, so that the outer side of at least part of the split part of the clamp can enter the groove during the connection process, providing an outward expansion activity area for the clamp.

[0016] In some embodiments, it also includes a first tightening nut and a second tightening nut, the first tightening nut is sleeved on the middle rod and threadedly cooperates with the middle rod to form abutment with the first joint; the second tightening nut is sleeved on the middle rod and threadedly cooperates with the middle rod to form abutment with the second joint; the operating part is a square column section, and the square column section is located between the first tightening nut and the second tightening nut.

[0017] In some embodiments, the end faces of at least two of the transverse prefabricated components are arranged opposite to each other, and the end faces are arranged at a distance from each other, and the distance between them is not less than the distance in the spacing direction away from the two farthest vertical connectors in this direction, so as to avoid the vertical connectors; the two transverse prefabricated components with end faces arranged opposite to each other are plug-connected by a transverse connector.

[0018] In some embodiments, a blocking plate for blocking the pouring port is further included, wherein the lower side of the blocking plate abuts against the upper side of the transverse prefabricated component, and the upper side is higher than the lower end surface of the upper prefabricated component and is disposed against the transverse side of the upper prefabricated component.

[0019] In some embodiments, the height between the upper end surface of the upper prefabricated component and the lower end surface of the lower prefabricated component is not less than 15 cm; the upper and lower heights of the pouring port are not less than 5 cm; and the overlap width of the transverse prefabricated component on the lower prefabricated component is between 3 cm and 6 cm.

[0020] In some embodiments, the gap cavity is filled with casting material to wrap the gap portions between the transverse prefabricated components, the upper prefabricated components, and the lower prefabricated components, and to wrap the transverse connectors and the vertical connectors; the casting material is concrete.

[0021] In order to achieve the above second purpose, the present invention also provides a connector for prefabricated components, which can be applied to any of the above prefabricated component combinations to connect the upper prefabricated component and the lower prefabricated component of the prefabricated component combination. Since the above prefabricated component combination has the above technical effects, the corresponding connector for prefabricated components should also have the corresponding technical effects.

[0022] In order to achieve the third object, the present invention further provides a connector of a prefabricated component, which is used to connect an upper prefabricated component and a lower prefabricated component, comprising a first joint, a second joint and a connecting rod, wherein the connecting rod comprises an intermediate rod portion, a threaded connection portion connected to one end of the intermediate rod portion and an insert portion connected to the other end of the intermediate rod portion, wherein the threaded connection portion is connected to the second joint by a thread extending up and down, wherein the insert portion is plugged and matched with the first joint by a plug and an elastic clamping hole, and the plug is clamped by the elastic clamping hole to transmit tension and pressure in the upper and lower directions, wherein one of the first joint and the second joint is used to be connected to the main reinforcement of the upper prefabricated component, and the other is used to be connected to the main reinforcement of the lower prefabricated component; the length of the intermediate rod portion is not less than 12 cm so as to be able to cross the transverse prefabricated component in the upper and lower directions, wherein the transverse prefabricated component is inserted between the lower end surface of the upper prefabricated component and the upper end surface of the lower prefabricated component and overlapped on the upper end surface of the lower prefabricated component; the intermediate rod portion has an operating portion for operating the rotation of the connector, and the operating portion is located at the upper section of the intermediate rod portion. Since the above-mentioned prefabricated component combination has the above-mentioned technical effects, the connecting parts of prefabricated components with similar structures should also have corresponding technical effects.

[0023] In order to achieve the fourth purpose mentioned above, the present invention also provides a method for connecting a prefabricated component combination, wherein the prefabricated component combination is any one of the prefabricated component combinations mentioned above, comprising the following steps: overlapping the upper end surface of the lower prefabricated component with the transverse prefabricated component; placing the upper prefabricated component so that the connecting rod of the vertical connecting member and the first joint are plugged in and matched through a plug and an elastic clamping hole, and the lower end surface of the upper prefabricated component is higher than the upper side surface of the transverse prefabricated component to form a casting port, wherein one of the first joint and the second joint of each of the vertical connecting members is connected to the main reinforcement of the upper prefabricated component, and the other is connected to the main reinforcement of the lower prefabricated component, and the connecting rod and the second joint are connected by a thread extending up and down; operating the operating part on the connecting rod to drive the connecting rod to rotate, so that the plug of the connecting rod moves in the direction of exiting the elastic clamping hole until the elastic clamping hole is pushed to clamp the plug; casting into the gap between the lower end surface of the upper prefabricated component and the upper end surface of the lower prefabricated component through the casting port. Since the above-mentioned prefabricated component combination has the above-mentioned technical effects, the corresponding connection method of the prefabricated component combination should also have corresponding technical effects.

[0024] In order to achieve the fifth objective, an embodiment of the present invention further provides a prefabricated component, which includes any of the above-mentioned connectors and a prefabricated body, wherein the prefabricated body is an upper prefabricated component or a lower prefabricated component, and the connector is connected to the main reinforcement of the prefabricated body. Since the above-mentioned connector has the above-mentioned technical effects, the prefabricated component having the connector should also have the corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of a prefabricated component assembly provided in an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the axial cross-sectional structure of a first joint provided in an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the axial cross-sectional structure of the connecting device at the first joint when the split member provided by an embodiment of the present invention is located at the first position;

[0029] Figure 4 A schematic diagram of the axial cross-sectional structure of the connecting device at the first joint when the split member provided by an embodiment of the present invention is located at the second position;

[0030] Figure 5 A schematic diagram of the axial cross-sectional structure of the mounting cylinder provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the three-dimensional structure of a positioning clamp ring provided in an embodiment of the present invention;

[0032] Figure 7 A cross-sectional schematic diagram of a positioning clamp ring provided in an embodiment of the present invention;

[0033] Figure 8 A schematic cross-sectional structure diagram of a stop sleeve provided in an embodiment of the present invention;

[0034] Fig. 9 A schematic cross-sectional structure diagram of a vertical connector provided by an embodiment of the present invention;

[0035] Fig.10 A schematic structural diagram of a vertical connector provided in an embodiment of the present invention.

[0036] The following are marked in the accompanying drawings:

[0037] Upper prefabricated component 1, lower prefabricated component 2, vertical connector 3, transverse prefabricated component 4, transverse connector 5, pouring port 6, blocking plate 7, gap cavity 8;

[0038] A first joint 3-1, a second joint 3-2, a connecting rod 3-3, a first tightening nut 3-4, a second tightening nut 3-5, a stop sleeve 3-6, an elastic device 3-7, a positioning snap ring 3-8, and a support body 3-9;

[0039] A first wall portion 3-11, a second wall portion 3-12, a third wall portion 3-13, a fourth wall portion 3-14, an internal thread 3-15, a groove 3-16, and a mounting hole 3-17;

[0040] Plug 3-31, intermediate rod 3-32, threaded connection part 3-33;

[0041] Expansion bevel 3-61;

[0042] Split piece 3-81, outer portion 3-82, abutting inclined surface 3-83, elastic clamping hole 3-84;

[0043] Head end 3-311, contraction portion 3-312;

[0044] Operation unit 3-321. DETAILED DESCRIPTION

[0045] The embodiment of the invention discloses a prefabricated component combination to effectively solve the problem of inconvenient connection of horizontal and vertical prefabricated components.

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-Figure 10 , Figure 1 A schematic structural diagram of a prefabricated component assembly provided in an embodiment of the present invention; Figure 2 A schematic diagram of the axial cross-sectional structure of a first joint provided in an embodiment of the present invention; Figure 3 A schematic diagram of the axial cross-sectional structure of the connecting device at the first joint when the split member provided by an embodiment of the present invention is located at the first position; Figure 4 A schematic diagram of the axial cross-sectional structure of the connecting device at the first joint when the split member provided by an embodiment of the present invention is located at the second position; Figure 5 A schematic diagram of the axial cross-sectional structure of the mounting cylinder provided in an embodiment of the present invention; Figure 6 A schematic diagram of the three-dimensional structure of a positioning clamp ring provided in an embodiment of the present invention; Figure 7 A cross-sectional schematic diagram of a positioning clamp ring provided in an embodiment of the present invention; Figure 8 A schematic cross-sectional structure diagram of a stop sleeve provided in an embodiment of the present invention; Fig. 9 A schematic cross-sectional structure diagram of a vertical connector provided by an embodiment of the present invention; Fig.10 A schematic structural diagram of a vertical connector provided in an embodiment of the present invention.

[0048] In some embodiments, a prefabricated component combination is provided, specifically, the prefabricated component combination mainly includes an upper prefabricated component 1, a lower prefabricated component 2, a transverse prefabricated component 4 and a plurality of vertical connectors 3, wherein the end of the transverse prefabricated component 4 is located between the upper prefabricated component 1 and the lower prefabricated component 2, the upper prefabricated component 1 and the lower prefabricated component 2 are connected by a plurality of vertical connectors 3, and the gap between the upper prefabricated component 1 and the lower prefabricated component 2 is cast to wrap each vertical connector 3 and the end of the transverse prefabricated component 4. Through the above arrangement, a better strength relationship can be formed at the intersection, and the vertical connector 3 is a plug-in connector, which makes the connection convenient and simple.

[0049] In some examples, the upper prefabricated component 1 and the lower prefabricated component 2 are both columns or piles, and structural members with the same cross-sectional size can be used; and the transverse prefabricated component is a beam. In some examples, the upper prefabricated component 1 and the lower prefabricated component 2 are both wall panels, and wall panels with the same cross-sectional size can be used; and the transverse prefabricated component is a beam or a layer. In some examples, one of the upper prefabricated component 1 and the lower prefabricated component 2 is a column and the other is a wall panel; and the transverse prefabricated component is a beam or a layer.

[0050] In some embodiments, the lower end of the upper prefabricated component 1 is higher than the upper end of the lower prefabricated component 2 , so that a gap cavity 8 is formed therebetween.

[0051] The end of the transverse prefabricated component 4 is inserted into the gap cavity 8 and overlapped on the upper end surface of the lower prefabricated component 2 to be supported by the lower prefabricated component 2. By forming a gap cavity 8 with a relatively large upper and lower spacing, the transverse prefabricated component 4 can enter and then be supported by the lower prefabricated component 2, and it is convenient for later pouring and splicing. Generally speaking, the upper prefabricated component 1 and the lower prefabricated component 2 are both prefabricated reinforced concrete components, wherein the transverse prefabricated component 4 can be a reinforced concrete component or a steel component, and the shape and structure of each of the above prefabricated components can be set as needed.

[0052] The transverse prefabricated component 4 is overlapped on the upper end surface of the lower prefabricated component 2 so that the lower prefabricated component 2 supports the transverse prefabricated component 4. Of course, the transverse prefabricated component 4 can also provide support through other structures. As shown in the accompanying drawings, when multiple transverse prefabricated components 4 are provided, the multiple transverse prefabricated components 4 are connected by transverse connectors 5. At this time, the transverse connectors 5 can be supported by the lower prefabricated component 2 through the later casting material, and the transverse prefabricated components 4 connected by the transverse connectors 5 can support each other.

[0053] The upper side surface of the end of the transverse prefabricated component 4 is lower than the lower end surface of the upper prefabricated component 1 to form a gap, which can be used as a pouring port 6, so that the later pouring material can enter the gap cavity 8 between the upper prefabricated component 1 and the lower prefabricated component 2 through this pouring port 6 to fill the part not occupied by the entity. In the gap cavity 8, part of the cavity will be occupied by the entity, and the entity here is as follows: the end part of the transverse prefabricated component 4 entering the gap cavity 8, the part of the vertical connector 3 exposed from the upper prefabricated component 1 and the lower prefabricated component 2, and can also include part of the structure of the transverse connector 5, and of course, other structures. The pouring material can be the same as the concrete material wrapped around the outer side of the steel bar of the upper prefabricated component 1, but considering the problem of narrow gaps, it can also be a material with better fluidity. At the same time, considering the problem of later bonding, it can also be a material with better bonding properties. Specifically, the gap cavity 8 may be filled with casting material to wrap the gap portion between the transverse prefabricated component 4, the upper prefabricated component 1 and the lower prefabricated component 2, and to wrap the vertical connector 3 and the transverse connector; the casting material is concrete.

[0054] Generally speaking, the height of the pouring port 6 is not less than 8 cm, so as to take into account the operation and use proposed later. Of course, when the tool is relatively good and the pouring material with better fluidity is used, the height of the pouring port 6 can be between 5 cm and 8 cm. Generally speaking, it is not less than 5 cm. Considering that the arm is extended from the pouring port 6 to cross the end of the transverse prefabricated component 4 and operate the part of the structure of the vertical connector 3 on the upper end face of the lower prefabricated component 2, the height of the pouring port 6 is preferably between 9 cm and 12 cm, preferably 11 cm, to accommodate the arms of most operators. Generally speaking, the height of the pouring port 6 is H, and the distance between the lower end face of the upper prefabricated component 1 and the upper end face of the lower prefabricated component 2 is L1. Here, L1 generally corresponds to the length L2 of the intermediate rod 3-32, which is similar in size and has an error of 10%L. The height of the transverse prefabricated component 4 is generally W, so H=LW.

[0055] The length of the pouring opening 6, i.e. the dimension in the horizontal direction (perpendicular to the height direction), is generally the same as the dimension in the same direction of the upper prefabricated component to form a rectangular opening. In the depth direction of the pouring opening 6, when extending to the end face of the transverse prefabricated component 4, the end face of the transverse prefabricated component 4 will be widened downward.

[0056] In some embodiments, the vertical connector 3 includes a first joint 3-1, a second joint 3-2 and a connecting rod 3-3, one end of the connecting rod 3-3 is threadedly connected to the first joint 3-1, and the other end is plug-in connected to the second joint 3-2. The connecting rod 3-3 includes an intermediate rod portion 3-32, a threaded connecting portion 3-33 connected to one end of the intermediate rod portion 3-32, and a plug-in portion connected to the other end of the intermediate rod portion 3-32. The connecting rod 3-3 is generally an integral structural member, that is, the threaded connecting portion 3-33 is integrally connected to the intermediate rod portion 3-32, and the plug-in portion is integrally connected to the intermediate rod portion 3-32. The threaded connecting portion 3-33 is such as a threaded hole or a threaded column, and the plug-in portion can be a slot or a plug 3-31, which can be specifically set as needed. As shown in the accompanying drawings, the upper end of the intermediate rod portion 3-32 is connected with a threaded connecting portion 3-33, and the lower end is connected with a plug-in portion.

[0057] The length L2 of the intermediate rod 3-32 is not less than the height W of the transverse prefabricated component 4 in the vertical direction, that is, L2 is greater than W, so as to ensure that the threaded connection part 3-33 and the insertion part extend into the upper prefabricated component 1 and the lower prefabricated component 2 respectively. Generally speaking, the height between the upper end face of the upper prefabricated component and the lower end face of the lower prefabricated component 2 is not less than 12 cm, and preferably not less than 15 cm. Correspondingly, the overlap width of the transverse prefabricated component 4 on the lower prefabricated component 2 is between 3 cm and 6 cm, that is, the depth D of the transverse prefabricated component extending into the gap cavity 8 is generally between 3 cm and 6 cm. If it is too small, the overlap effect is not good, and if it is too large, the interference with the vertical connector 3 is relatively large.

[0058] The threaded connection part 3-33 is connected to the second joint 3-2 through threads extending up and down, that is, one of the threaded connection part 3-33 and the second joint 3-2 is provided with a threaded hole, and the other is provided with a threaded column matching the threaded hole, such as the threaded connection part 3-33 is a threaded hole, and the second joint 3-2 is provided with a threaded column.

[0059] The insertion part and the first connector 3-1 are plugged in and matched up and down through the plug 3-31 and the elastic clamping hole 3-84, and the plug 3-31 is clamped by the elastic clamping hole 3-84 to transmit tension and pressure in the up and down directions to achieve technical effects such as tension resistance and pull-out resistance. One of the insertion part and the first connector 3-1 is provided with a plug 3-31, and the other is provided with an elastic clamping hole 3-84, so that the hole is elastically expanded when the plug 3-31 is inserted, until it is inserted in place, and then clamped under the elastic device 3-7 to prevent the plug 3-31 from being pulled out. For example, the insertion part is provided with an elastic clamping hole 3-84, and the first connector 3-1 is provided with a plug 3-31.

[0060] One of the first joint 3-1 and the second joint 3-2 is connected to the main reinforcement of the upper prefabricated component 1, and the other is connected to the main reinforcement of the lower prefabricated component 2, so that the main reinforcement of the upper prefabricated component 1 and the main reinforcement of the lower prefabricated component 2 can be connected through the vertical connecting member 3 to achieve the strength support requirements between the upper prefabricated component 1 and the lower prefabricated component 2, that is, the support requirements for the upper prefabricated component 1 can be met through each vertical connecting member 3, and even its connection strength requirements can be met. If the first joint 3-1 is installed on the upper prefabricated component 1, and the second joint 3-2 is installed on the lower prefabricated component 2, at this time the first joint 3-1 is on the top and the second structure is on the bottom, then the corresponding upper end of the intermediate rod 3-32 may be provided with a plug 3-31, and the lower end may be provided with a threaded column, the first joint 3-1 may be provided with an elastic card hole 3-84, and the second joint 3-2 may be provided with a threaded hole, then the intermediate rod 3-32 may be threadedly connected with the second joint 3-2 first, and installed on the lower prefabricated component 2; the first joint 3-1 may be installed on the upper prefabricated component 1, and then the upper prefabricated component 1 may be installed, so that the plug 3-31 is inserted into the elastic card hole 3-84 of the first joint 3-1, and then the plug 3-31 and the elastic card hole 3-84 are completely locked by rotating the axial position of the intermediate rod 3-32.

[0061] As mentioned above, after the upper prefabricated component 1 is installed, it is necessary to operate the middle rod 3-32, that is, drive the middle rod 3-32 to rotate to adjust the axial position to ensure that the plug 3-31 and the elastic buckle are fully clamped.

[0062] Among them, the middle rod 3-32 has an operating part 3-321 for operating the connection rod 3-3 to rotate, wherein the operating part 3-321 is arranged at the same height as the pouring port 6, and is used for the operating tool to pass through the pouring port 6 to operate the operating part 3-321. That is, the pouring port 6 is also used as an operating port at this time. During installation, the rear lower prefabricated component 2 can be placed first, then the rear transverse prefabricated component 4 can be placed, and finally the upper prefabricated component 1 can be placed until the plug 3-31 and the elastic clamping hole 3-84 are inserted, and then the operating tool is entered through the pouring port 6 to operate the middle rod 3-32 to rotate, so that the elastic clamping hole 3-84 is clamped during the process of the plug 3-31 moving outward toward the elastic clamping hole 3-84, so as to better achieve the anti-pullout effect. On the middle rod 3-32, the operating part 3-321 is arranged slightly upward, so that the operating part 3-321 can be at the same height as the pouring port 6, thereby facilitating operation through the pouring port 6.

[0063] In the above-mentioned prefabricated component combination, when the transverse prefabricated component 4 needs to be installed, the upper prefabricated component 1 and the lower prefabricated component 2 can still be connected by the plug-in vertical connector 3, and at the same time, the operating part 3-321 on the middle rod 3-32 is moved up to be set at the same height as the pouring port 6. This means that when the above-mentioned vertical connector 3 is used, the transverse prefabricated component 4 can be installed first, and then the upper prefabricated component 1 can be installed, and finally the middle rod 3-32 can be operated through the pouring port 6 to complete the final installation. This operation process is simple and convenient. In summary, the prefabricated component combination can effectively solve the problem of inconvenient connection of transverse and longitudinal prefabricated components.

[0064] In some embodiments, the first joint 3-1 may include a mounting tube, an elastic device 3-7 and a split positioning clamp 3-8.

[0065] The positioning snap ring 3-8 has a plurality of split parts 3-81 which are sequentially combined to form an annular structure to surround and form a bayonet. The positioning snap ring can have three split parts 3-81, four split parts 3-81, five split parts 3-81 or more split parts 3-81. The split parts 3-81 are generally arc-shaped structures so that they can be combined to form a circular ring structure. At this time, the center angles of each split part 3-81 are equal, and the sum is 360 degrees or close to 360 degrees. For example: the positioning snap ring can include four split parts 3-81, at this time, the center angles of each split part 3-81 are equal, and are close to 90 degrees or 90 degrees, close to 90 degrees, so as to facilitate the formation of gaps between adjacent split parts 3-81.

[0066] When the split part 3-81 moves away from the center, that is, moves radially outward, so that the middle bayonet 1 is expanded, when the split part 3-81 moves to the first position, the snap ring is in an expanded state, and the plug 3-31 can move along the insertion direction and the head end 3-311 can pass over the bayonet. When the split part 3-81 moves from the first position to the direction close to the center, that is, moves radially inward, so that the middle bayonet becomes smaller again, when the split part 3-81 moves to the second position, the snap ring is in a contracted state, and the contraction part 3-312 of the plug 3-31 is tightly held or the plug 3-31 is axially limited to prevent the plug 3-31 from disengaging in the reverse direction of the insertion direction.

[0067] The barrel cavity of the installation barrel is the installation hole 3-17, and the positioning snap ring 3-8 is installed in the installation hole 3-17. The positioning snap ring 3-8 is supported by the elastic device 3-7 to prevent the split pieces 3-81 of the positioning snap ring 3-8 from moving away from each other, so that the bayonet formed by each split piece 3-81 is the elastic snap hole 3-84. One end of the split piece 3-81 abuts against the installation barrel through an inclined surface to guide the positioning snap ring 3-8 to expand outward to expand the elastic snap hole 3-84, and the other end of the split piece 3-81 abuts against the elastic device 3-7 to prevent the snap ring from expanding outward. Through the above arrangement, when the plug 3-31 is inserted, although the plug 3-31 only moves in the axial direction, it needs to squeeze the various split parts 3-81, so it will generate a comprehensive axial and radial thrust on the positioning clamp ring 3-8. Under the thrust, due to the limit of the elastic device 3-7 and the guidance of the inclined surface, the split part will produce an inclined movement relative to the axis during the movement to the first position, that is, it has axial movement and radial movement at the same time. The radial movement can make the bayonet larger, and the axial movement will cause the elastic device 3-7 to deform elastically. The head end 3-311 forms a reverse support for the split part 3-81. During this movement, the positioning clamp ring 3-8 can always keep in contact with the inclined surface.

[0068] When the head end 3-311 passes over the bayonet, the head end 3-311 no longer supports the split part 3-81. Then, under the deformation force of the elastic device 3-7, the split part 3-81 will be pushed to move from the first position, that is, axially toward the direction in which the elastic device 3-7 restores its deformation, and radially inward to shrink the bayonet until it moves to the second position. At this time, the split part 3-81 cannot move further, but the bayonet is smaller than the maximum cross-section of the head end 3-311, so that the plug 3-31 cannot be detached. The reason why the split part 3-81 cannot move further at this time may be that the split part 3-81 is abutting against the contraction part 3-312 and cannot move further; it may also be that the adjacent split parts 3-81 are abutting against each other and cannot move further toward the center; it may also be limited by other structures.

[0069] In some embodiments, as shown in the accompanying drawings, the first joint 3-1 is installed on the lower prefabricated component 2, and the second structure is installed on the upper prefabricated component 1. In order to facilitate arrangement and installation, the installation tube can be pre-buried at the upper end surface of the lower prefabricated component 2 and connected to the main reinforcement of the lower prefabricated component 2. Generally, the upper end surface of the installation tube is coplanar with the upper end surface of the lower prefabricated component 2. The insertion part is the above-mentioned plug 3-31 and is connected to the lower end of the intermediate rod 3-32 for insertion into the positioning clamp 3-8 in the installation tube.

[0070] The second joint 3-2 includes a threaded sleeve, wherein the threaded sleeve is pre-buried at the lower end surface of the upper prefabricated component 1 and connected to the main reinforcement of the upper prefabricated component 1, and the lower end surface of the threaded sleeve is generally arranged coplanar with the lower end surface of the upper prefabricated component 1. The threaded connection part 3-33 on the connecting rod 3-3 is a stud and is connected to the upper end of the intermediate rod part 3-32, wherein the threaded connection part 3-33 is threadedly connected to the inner threaded hole of the threaded sleeve.

[0071] In some embodiments, the above-mentioned inclined surface may be provided in the mounting tube, or may not be provided with the mounting tube, but be provided on another structure fixedly installed on the mounting tube, so as to facilitate the positioning clamp 3-8 to be installed from the opening of the mounting tube.

[0072] Specifically, it also includes a stopper sleeve 3-6, which is installed in the mounting hole 3-17 and matched with the internal thread 3-15 on the wall of the mounting hole 3-17, so that when the stopper sleeve 3-6 is taken out, the positioning snap ring 3-8 can be put into the hole of the mounting hole 3-17 to the specified position, and then the stopper sleeve 3-6 is installed, and the stopper sleeve 3-6 is threadedly connected with the mounting tube to achieve mutual force transmission. The positioning snap ring 3-8 is indirectly abutted against the mounting tube through the stopper sleeve 3-6, and while transmitting force, the positioning snap ring 3-8 can be constrained to prevent the positioning snap ring 3-8 from being separated from the current position.

[0073] Specifically, the inner end of the stopper sleeve 3-6 forms a reaming inclined surface 3-61, which cooperates with the abutment inclined surface 3-83 corresponding to the snap ring to guide the radial and circumferential movements of the snap ring during the expansion process. The reaming inclined surface 3-61 at the inner end of the stopper sleeve 3-6 cooperates with the abutment inclined surface 3-83 corresponding to the positioning snap ring 3-8 to guide the radial and axial movements of the snap ring during the expansion process. The inclination angle of the inclined surface can be 30 degrees, 45 degrees, 60 degrees, etc. The preferred inclination angle is between 30 degrees and 60 degrees.

[0074] The radial length of the expansion bevel 3-61 is preferably not less than Dt-Ds, so that the split piece 3-81 can be moved to the first position and the second position, and the abutment bevel 3-83 and the expansion bevel 3-61 always maintain a close relationship, and only the relative position relationship changes along the extension direction of the bevel.

[0075] The inner hole diameter Daz of the stop sleeve 3-6 is not less than Dt (the maximum cross-sectional radius of the head end 2-11), so that the head end 3-311 can pass through the inner hole of the stop sleeve 3-6.

[0076] In order to ensure strength, it is preferred that the abutting bevel 3-83 extends from one axial end face of the positioning clamp 3-8 to the other end face, as shown in the attached figure, extending from the upper end face to the lower end face. Wherein Wd is the distance between the radial outer edge and the radial inner edge of the lower end face. And it is preferred that the width of the upper end face of the split part 3-81, that is, the distance between the radial outer edge and the radial inner edge of the upper end face of the split part 3-81, should be greater than 0 to ensure the strength of the upper end. Specifically, the radial distance between the upper edge of the abutting bevel 3-83 and the inner hole wall of the positioning clamp 3-8 can be equal to (Dz-Ds) / 2.

[0077] Furthermore, in order to make the overall structure more compact, the first wall portion 3-11, the second wall portion 3-12 and the third wall portion 3-13 of the mounting hole 3-17 can be sequentially arranged along the axial direction, wherein the internal thread 3-15 is arranged on the inner wall of the first wall portion 3-11, that is, a fixed connection is formed between the first wall portion 3-11 and the stop sleeve 3-6, so as to be able to transmit force axially, that is, transmit force in the plugging direction. The third wall portion 3-13 is used to connect other structures.

[0078] The inner diameter of the second wall portion 3-12 is larger than the inner diameter of the first wall portion 3-11 and the inner diameter of the third wall portion 3-13 (the inner diameter can be regarded as the inner diameter), so that the inner wall of the second wall portion 3-12 and the adjacent end walls of the first wall portion 3-11 and the third wall portion 3-13 form a groove 3-16, that is, the second wall portion 3-12 constitutes the groove bottom of the groove 3-16, and the end wall of the first wall portion 3-11 and the end wall of the third wall portion 3-13 respectively constitute the groove walls on both sides of the groove 3-16. The groove 3-16 can be an arc groove 3-16, or a groove 3-16 arranged in a circumferential ring.

[0079] The groove 3-16 has a radial depth and an axial length, so that during the connection process, the radial outer portion 3-82 of at least part of the split part 3-81 of the positioning snap ring 3-8 can enter the groove 3-16, providing an outward expansion activity area for the snap ring. Specifically, the diameter of the cylindrical surface where the groove bottom of the groove 3-16 is located, that is, the inner wall diameter D2 of the second wall portion 3-12, should be not less than the maximum cross-sectional diameter Dt of the head end 3-311 of the plug 3-31 plus the radial width Wd of the split part 3-81, that is, D2≥Dt+2Wd, preferably D2>Dt+2Wd, so that the positioning snap ring 3-8 has a certain adaptation gap, that is, the deviation gap.

[0080] The split component 3-81 needs to move between the first position and the second position. When the split component 3-81 is in the first position, the distance between the outer side surface (the farthest outer side surface) of the split component 3-81 and the axis is Dt / 2+Wd (n / 2 represents half of n, and n is an arbitrary value, such as Dt, Ds, etc.); and when the split component 3-81 is in the second position, if the inner side of the split component 3-81 abuts against the contraction portion 3-312, the distance between the outer side surface (the farthest outer side surface) of the split component 3-81 and the axis is Ds / 2+Wd, where Ds is the diameter of the contraction portion 3-312 of the plug 3-31. At this time, during the expansion process of the split component 3-81, the radial active length of the split component 3-81 is (Dt-Ds) / 2. The axial range of motion is related to the angle between the inclined plane and the axis. If it is 45 degrees, then the axial movable length of the split component 3-81 from the first position to the second position is (Dt-Ds) / 2.

[0081] When the split component 3-81 is in the second position, the outer portion 3-82 of the split component 3-81 can enter the groove 3-16 or be located outside the groove 3-16. The specific size should be set according to the required structure. When the split component 3-81 is in the second position: if the outer portion 3-82 of the split component 3-81 enters the groove 3-16, the radial depth of the groove 3-16 should be greater than (Dt-Ds) / 2, and the axial length is set according to the inclination angle and the groove depth; if the outer portion 3-82 of the split component 3-81 is located outside the groove 3-16, the radial depth of the groove 3-16 can be less than (Dt-Ds) / 2, but considering that a gap needs to be reserved, the radial depth of the groove 3-16 can be equal to or greater than (Dt-Ds) / 2, and the axial length is set according to the inclination angle and the groove depth. As shown in the accompanying drawings, when the split part 3-81 is in the second position, the distance between the outer side surface (the farthest outer side surface) of the split part 3-81 and the axis is equal to the inner hole radius of the first wall part 3-11, so as to be set corresponding to the strength of the stopper sleeve 3-6. When the first wall part 3-11 has an internal thread 3-15, the thread top radius of the internal thread 3-15 is the inner hole radius. The size of (Dt-Ds) / 2 also needs to consider relevant factors such as the strength of the plug 3-31.

[0082] When the plug 3-31 is inserted, the head end 3-311 of the plug 3-31 acts on the snap ring to push the positioning snap ring 3-8 to expand from the contracted state to the expanded state. During the expansion process, the outer portion 3-82 of the positioning snap ring 3-8 increases the distance compared to the center to move outward. During the outward movement, the outer portion 3-82 of the positioning snap ring 3-8 has a certain amount of movable space in the groove 3-16 so as to avoid the groove 3-16.

[0083] In some embodiments, considering that the force between the first wall portion 3-11 and the third wall portion 3-13 needs to be transmitted through the second wall portion 3-121, in order to improve the reliability of the force transmission, the first wall portion 3-11 and the adjacent end walls of the third wall portion 3-13 can be inclined to gradually approach each other while extending toward the inner wall of the second wall portion 3-12, so that the groove 3-16 gradually decreases in width along the groove depth direction. Specifically, the inclination angles of the adjacent end walls of the first wall portion 3-11 and the third wall portion 3-13 can be preferably between 30 degrees and 60 degrees, such as 45 degrees, and can be relatively arranged.

[0084] In some embodiments, the outer walls of the first wall portion 3-11, the second wall portion 3-12 and the third wall portion 3-13 can be coaxially arranged with equal outer diameters. For example, the outer wall surface of the first joint 3-1 can be a cylindrical side surface, and the diameters of the outer side surfaces at various locations are equal along the axial direction.

[0085] In some embodiments, one end of the internal thread 3-15 can be extended to the groove 3-16, and the length of the internal thread 3-15 can be increased to ensure the connection strength between the stop sleeve 3-6 and the first joint 3-1, and to facilitate the molding of the internal thread 3-15 so that the groove 3-16 can also serve as the backing groove of the internal thread 3-15.

[0086] In some embodiments, a fourth wall portion 3-14 may be further provided at one end of the third wall portion 3-13 away from the groove 3-16, wherein the inner diameter of the fourth wall portion 3-14 is smaller than the inner diameter of the third wall portion 3-13, so that the end wall of the fourth wall portion 3-14 protrudes from the inner wall of the third wall portion 3-13 to form a support shoulder; and one end of the elastic device 3-7 abuts against the support shoulder, and the other end is used to support the snap ring. That is, during installation, the elastic device 3-7 can be placed in the inner hole formed by the third wall portion 3-13, with the lower end supported by the support shoulder, and the upper end directly or indirectly abutting against the snap ring. As described below, indirect abutment can be achieved through the support body 3-9.

[0087] The outer wall diameter of the fourth wall portion 3 - 14 is preferably equal to the outer wall diameter of the third wall portion 3 - 13 , but may be different.

[0088] In some embodiments, the inner hole formed by the fourth wall portion 3-14 can be used as a connection hole for external connection, such as for the head of a steel bar to pass through. Specifically, the fourth wall portion 3-14 can be set through at both ends, and an external rod can be formed at one end away from the third wall portion 3-13, and the external rod can pass through the inner hole formed by the fourth wall portion 3-14 to penetrate into the inner hole formed by the third wall portion 3-13. The inner hole diameter of the elastic device 3-7 is not less than the inner hole diameter of the fourth wall portion 3-14 to accommodate the head of the main reinforcement. At this time, the head of the main reinforcement can also be against the support shoulder to transmit tension. Correspondingly, the threaded sleeve can include a threaded section and a shrinkage hole section. The main reinforcement passes through the shrinkage hole section to enter the threaded section, and the corresponding main reinforcement head is limited by forming a shoulder between the shrinkage hole section and the threaded section.

[0089] When in use, the force transmitted by the plug 3-31 and the external rod, and the action force of the external rod will sequentially pass through the support shoulder, the third wall portion 3-13, the second wall portion 3-12, the first wall portion 3-11, the threaded pair on the first wall portion 3-11, the stop sleeve 3-6 and the retaining ring 1-4, and then be transmitted to the plug 3-31; the positioning retaining ring 3-8 transmits the action force by abutting against the stop sleeve 3-6 and the plug 3-31.

[0090] In some embodiments, in order to facilitate the transmission of force between the elastic device 3-7 and the snap ring, it is preferred that a support body 3-9 is also included, wherein the support body 3-9 is connected between the elastic device 3-7 and the snap ring. Specifically, the support body 3-9 can include a support platform and a guide cylinder, wherein the corresponding end of the first elastic device 3-7 is sleeved on the guide cylinder, and the end surface is against the lower side of the support platform, and the upper side surface of the support platform is against the positioning snap ring 3-8, that is, the positioning snap ring 3-8 is placed on the upper side surface of the support platform. The support platform and the guide cylinder are preferably integrally formed and connected.

[0091] In some embodiments, in order to make the structure more compact, it is preferred that a first tightening nut 3-4 and a second tightening nut 3-5 are also included, wherein the first tightening nut 3-4 is sleeved on the middle rod 3-32 and is threadedly matched with the middle rod 3-32, so as to be able to form an abutment with the first joint 3-1 to prevent the plug 3-31 from continuing to move into the slot. When in use, after the plug 3-31 is inserted into the positioning snap ring 3-8, the connecting rod 3-3 is rotated so that the plug 3-31 abuts against the positioning snap ring 3-8, so as to be prevented from moving outward by the positioning snap ring 3-8, and at this time the connecting rod 3-3 has a certain tensile strength. Then the first tightening nut 3-4 is rotated to abut against the first joint 3-1, so that the connecting rod 3-3 can transmit pressure between the first joint 3-1.

[0092] Correspondingly, the second tightening nut 3-5 is sleeved on the middle rod portion 3-32 and is threadedly matched with the middle rod portion 3-32 so as to be able to form abutment with the second joint 3-2. As mentioned above, because the threaded connection portion 3-33 is connected to the thread in the second joint 3-2, the connecting rod 3-3 is allowed to rotate, and after the connecting rod 3-3 is rotated so that the plug 3-31 is abutted with the positioning clamp ring 3-8, the second tightening nut 3-5 is then rotated so that the second tightening nut 3-5 is abutted with the second joint 3-2 to transmit pressure, and at the same time, the rotation of the connecting rod 3-3 relative to the second joint 3-2 can be limited.

[0093] As mentioned above, the operating portion 3-321 can be a square column segment, and the square column segment is located between the first tightening nut 3-4 and the second tightening nut 3-5, so as to facilitate operation. As mentioned above, when the second joint 3-2 is arranged on the upper prefabricated component 1, the corresponding second tightening nut 3-5 is arranged close to the upper prefabricated component 1. At this time, the distance between the square column segment and the first tightening nut 3-4 is greater than the distance between the square column segment and the second tightening nut 3-5. The square column segment can be a square column segment, a hexagonal column segment, or other structures that are convenient for applying torque. Of course, the operating portion 3-321 can also be an operating hole that is convenient for applying torque.

[0094] It should also be noted that the operation of the first tightening nut 3-4 and the second tightening nut 3-5 can be performed by inserting an operating tool through the pouring port 6. The operating tool is a wrench, etc. Considering the position of the first tightening nut 3-4, the pouring port 6 should be convenient for the operator's arm to be inserted, such as allowing at least the upper arm to pass through.

[0095] In some examples, when multiple transverse prefabricated components 4 are inserted, such as when the end faces of at least two transverse prefabricated components 4 are arranged opposite to each other, the end faces of the two transverse prefabricated components 4 should be spaced apart to avoid the vertical connectors 3 extending up and down. Generally speaking, the distance between the end faces of the two transverse prefabricated components 4 is not less than the distance in the direction of the distance away from the two farthest vertical connectors 3, thereby achieving staggering. Considering the problem of convenient flow of the casting material in the later stage, generally speaking, the distance between the end face of the transverse prefabricated component 4 and the adjacent vertical connector 3 should not be too small, such as not less than 3 mm.

[0096] The two transverse prefabricated components 4 with end faces facing each other are connected via a transverse connector 5, wherein the structure of the transverse connector 5 can refer to the above-mentioned vertical connector 3, such as also including a connecting rod 3-3, two tightening nuts and two joints, one end of the connecting rod 3-3 is threadedly connected to one of the joints, and is plugged into the other joint through a slot and a socket, and the slot is provided with an elastic card hole 3-84, and the setting of the elastic card hole 3-84 can refer to the above-mentioned embodiment.

[0097] It should be noted that generally, a plurality of transverse connectors 5 are provided, and the transverse connectors 5 and the vertical connectors 3 are cross-arranged horizontally and vertically, and the transverse connectors 5 can pass through the gaps between the vertical connectors 3 , and the vertical connectors 3 can pass through the gaps between the transverse connectors 5 .

[0098] In some instances, after pouring is completed, a sealing plate 7 is generally provided to seal the pouring port 6. Of course, when there are multiple pouring ports 6 and only one pouring port 6 is selected for pouring in practice, during the pouring process, other gaps that are not used as actual pouring ports 6 may also be pre-set with sealing plates 7.

[0099] As shown in the accompanying drawings, the lower side of the blocking plate 7 abuts against the upper side of the transverse prefabricated component 4, generally in surface contact, to achieve a certain sealing effect, that is, to block the lower edge of the pouring port 6. The upper side of the blocking plate 7 is higher than the lower end surface of the upper prefabricated component 1 and is arranged against the transverse side of the upper prefabricated component 1, generally also in surface contact, that is, to block the upper edge of the pouring port 6.

[0100] When the end faces of the two transverse prefabricated components 4 are arranged relative to each other, pouring openings 6 are formed on the upper sides of the corresponding two transverse prefabricated components 4 and on the corresponding side of the upper prefabricated component 1. At this time, sealing plates 7 are provided on the upper sides of the two transverse prefabricated components 4, and in the actual pouring process, one pouring opening 6 can be pre-closed by the sealing plate 7, and then pouring can be carried out through the other pouring opening 6. When the pouring is finished, the pouring opening 6 is closed by the sealing plate 7.

[0101] As shown in the accompanying drawings, there are transverse prefabricated components 4 on both sides of the left and right directions. Then, in the front-to-back direction (the front-to-back direction is perpendicular to the left-to-right direction and the up-down direction), a transverse prefabricated component 4 can be further arranged, or it can be not arranged and closed by the plate body during pouring.

[0102] Based on the prefabricated component combination provided in the above embodiment, the present invention further provides a prefabricated component connector, which is applied to any of the above prefabricated component combinations as a part of the above prefabricated component combination, and is used to connect the upper prefabricated component 1 and the lower prefabricated component 2 of the prefabricated component combination, so the beneficial effects of the prefabricated component connector can refer to the above embodiment. Of course, the prefabricated component connector can refer to any of the above vertical connectors 3.

[0103] Based on the prefabricated component combination provided in the above embodiment, the present invention further provides a prefabricated component connector for connecting an upper prefabricated component 1 and a lower prefabricated component 2, the specific connector includes a first joint 3-1, a second joint 3-2 and a connecting rod 3-3, the connecting rod 3-3 includes an intermediate rod portion 3-32, a threaded connection portion 3-33 connected to one end of the intermediate rod portion 3-32, and an insert portion connected to the other end of the intermediate rod portion 3-32, the threaded connection portion 3-33 is connected to the second joint 3-2 by a thread extending up and down, the insert portion is plugged into and matched with the first joint 3-1 by a plug 3-31 and an elastic card hole 3-84, and the plug 3-31 is connected by the The elastic clamping hole 3-84 is clamped to transmit tension and pressure in the up and down directions. One of the first joint 3-1 and the second joint 3-2 is used to connect to the main reinforcement of the upper prefabricated component, and the other is used to connect to the main reinforcement of the lower prefabricated component 2. The length of the intermediate rod 3-32 is not less than 12 cm so that it can cross the transverse prefabricated component 4 in the up and down directions. The transverse prefabricated component 4 is inserted between the lower end surface of the upper prefabricated component 1 and the upper end surface of the lower prefabricated component 2 and overlapped on the upper end surface of the lower prefabricated component 2. The intermediate rod 3-32 has an operating part 3-321 for operating the rotation of the connecting member, and the operating part 3-321 is located at the upper section of the intermediate rod 3-32. Since the same structure is adopted as the above-mentioned vertical connecting member 3, please refer to the above-mentioned embodiment for the beneficial effects of the connecting member of the prefabricated component. Of course, the connecting member of the prefabricated component can refer to any of the above-mentioned vertical connecting members 3.

[0104] Based on the prefabricated component combination provided in the above embodiments, the present invention further provides a connection method of the prefabricated component combination, which can be applied to any of the above prefabricated component combinations. Specifically, the connection method of the prefabricated component combination includes the following steps.

[0105] Step 100: overlap the upper end surface of the lower prefabricated component 2 with the transverse prefabricated component 4 .

[0106] The transverse prefabricated component 4 overlaps the upper end surface of the lower prefabricated component 2, so that the relative position relationship between the transverse prefabricated component 4 and the lower prefabricated component 2 meets the final requirement. At this time, the transverse prefabricated component 4 needs to avoid the joint (the first joint 3-1 or the second joint 3-2) on the lower prefabricated component 2, and the overlap width of the transverse prefabricated component 4 can refer to the above embodiment.

[0107] When a plurality of transverse prefabricated components 4 are provided, when the transverse prefabricated components 4 are placed, the transverse connectors 5 between the transverse prefabricated components 4 should also be connected before step 200 .

[0108] Step 200: Place the upper prefabricated component 1 so that the connecting rod 3-3 of the vertical connecting member 3 and the first joint 3-1 are plugged together through the plug 3-31 and the elastic clamping hole 3-84, and the lower end surface of the upper prefabricated component 1 is higher than the upper side surface of the transverse prefabricated component 4 to form a casting port 6, wherein one of the first joint 3-1 and the second joint 3-2 of each of the vertical connecting members 3 is connected to the main reinforcement of the upper prefabricated component, and the other is connected to the main reinforcement of the lower prefabricated component 2, and the connecting rod 3-3 is connected to the second joint 3-2 by a thread extending up and down.

[0109] Generally, before step 100, or at least before step 200, the upper prefabricated component 1 and the lower prefabricated component 2 need to be configured, that is, one of the first joint 3-1 and the second joint 3-2 of each vertical connector 3 is connected to the main reinforcement of the upper prefabricated component, and the other is connected to the main reinforcement of the lower prefabricated component 2; and the connecting rod 3-3 of the vertical connector 3 is connected to the corresponding second joint 3-2 to complete the preliminary threaded connection. The specific installation objects of the first joint 3-1 and the second joint 3-2 can refer to the above embodiment.

[0110] Then, the upper prefabricated component 1 is placed. Specifically, the upper prefabricated component 1 and the lower prefabricated component 2 are aligned in the horizontal direction. At this time, the connecting rod 3-3 is aligned with the corresponding first joint 3-1, and then the upper prefabricated component 1 is lowered until the plug 3-31 and the elastic clamping hole 3-84 are plugged in, that is, the connecting rod 3-3 and the first joint 3-1 are plugged in. As in the above embodiment, at this time, a pouring port 6 is formed between the lower end face of the corresponding lower prefabricated component 2 and the upper side face of the transverse prefabricated component 4. The structure and function of the pouring port 6 can refer to the above embodiment.

[0111] Step 300: Operate the operating part 3-321 on the connecting rod 3-3 to drive the connecting rod 3-3 to rotate, so that the plug 3-31 of the connecting rod 3-3 moves in the direction of exiting the elastic clamping hole 3-84 until the elastic clamping hole 3-84 is pushed to clamp the plug 3-31.

[0112] Because after the plug 3-31 is inserted into the elastic clamping hole 3-84, the insertion depth is generally greater to ensure insertion. Then the plug 3-31 moves outward, and during the outward movement, it will push the elastic clamping hole 3-84 to shrink until the elastic clamping hole 3-84 clamps the plug 3-31, and at this time the plug 3-31 can no longer move outward. Taking the plug 3-31 set on the connecting rod 3-3 as an example, the connecting rod 3-3 is based on the threaded connection with the second joint 3-2, and the spiral movement can be divided into rotation and axial movement. At this time, the plug 3-31 is required to be able to rotate freely at the elastic clamping hole 3-84, and the axial movement, such as when moving outward, can complete the above-mentioned locking effect of pushing the elastic clamping hole 3-84.

[0113] It should be noted that the structure of the vertical connecting member 3 may refer to the corresponding structure in the above embodiment.

[0114] Step 400 : pouring into the gap between the lower end surface of the upper prefabricated component 1 and the upper end surface of the lower prefabricated component 2 through the pouring port 6 .

[0115] The pouring method may refer to the above embodiment, and the pouring port 6 not used for pouring may be blocked by a blocking plate 7 .

[0116] It should be noted that when the first tightening nut 3-4 and the second tightening nut 3-5 are provided, between step 300 and step 400, it is also necessary to operate the first tightening nut 3-4 and the second tightening nut 3-5 to stop the connecting rod 3-3 from rotating and transmit axial force to the corresponding prefabricated component.

[0117] Based on the connector provided in the above embodiments, the present invention further provides a prefabricated component, which includes any one of the connectors in the above embodiments, and also includes a prefabricated body, the prefabricated body is an upper prefabricated component or a lower prefabricated component, the connector is connected to the main reinforcement of the prefabricated body, and the specific connection method can refer to some of the above embodiments. Since the prefabricated component adopts the connector in the above embodiments, please refer to the above embodiments for the beneficial effects of the prefabricated component.

[0118] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0119] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated component assembly, characterized in that: It comprises an upper prefabricated component (1), a lower prefabricated component (2), a transverse prefabricated component (4) and a plurality of vertical connecting members (3); The lower end of the upper prefabricated component (1) is higher than the upper end of the lower prefabricated component (2), so that a gap cavity (8) is formed therebetween; The end of the transverse prefabricated component (4) is inserted into the gap cavity (8) and overlapped on the upper end of the lower prefabricated component (2), and the upper side surface of the end of the transverse prefabricated component (4) is lower than the lower end surface of the upper prefabricated component (1) to form a gap, so as to be able to serve as a pouring port (6); The vertical connecting member (3) comprises a first joint (3-1), a second joint (3-2) and a connecting rod (3-3); the connecting rod (3-3) comprises an intermediate rod portion (3-32), a threaded connecting portion (3-33) connected to one end of the intermediate rod portion (3-32), and an inserting portion connected to the other end of the intermediate rod portion (3-32); the length of the intermediate rod portion (3-32) is not less than the height in the vertical direction of the transverse prefabricated component (4); the threaded connecting portion (3-33) is connected to the intermediate rod portion (3-32) and the inserting portion is connected to the intermediate rod portion (3-32). The second joint (3-2) is connected via a thread extending upward and downward, the insertion portion and the first joint (3-1) are plugged in and matched with each other upward and downward via a plug (3-31) and an elastic clamping hole (3-84), and the plug (3-31) is clamped by the elastic clamping hole (3-84) to transmit tension and pressure in the upward and downward directions, one of the first joint (3-1) and the second joint (3-2) is connected to the main reinforcement of the upper prefabricated component (1), and the other is connected to the main reinforcement of the lower prefabricated component (2); The intermediate rod portion (3-32) has an operating portion (3-321) for operating the connection rod (3-3) to rotate; the operating portion (3-321) is arranged at the same height as the pouring port (6) and is used for operating a tool to pass through the pouring port (6) to operate the operating portion (3-321).

2. The prefabricated component assembly according to claim 1, characterized in that: The first joint (3-1) comprises a mounting tube, an elastic device (3-7) and a split positioning snap ring (3-8); the positioning snap ring (3-8) is supported by the elastic device (3-7) to prevent the split pieces (3-81) of the positioning snap ring (3-8) from moving away from each other, so that the snap opening formed by the split pieces (3-81) is the elastic snap hole (3-84); the barrel cavity of the mounting tube is the mounting hole (3-17), and the positioning snap ring (3-8) is installed in the mounting hole (3-17); one end of the split piece (3-81) abuts against the mounting tube through an inclined surface to guide the positioning snap ring (3-8) to expand outward to expand the elastic snap hole (3-84), and the other end of the split piece (3-81) abuts against the elastic device (3-7) to prevent the positioning snap ring (3-8) from expanding outward.

3. The prefabricated component assembly according to claim 2, characterized in that: The installation tube is embedded in the upper end surface of the lower prefabricated component (2) and connected to the main reinforcement of the lower prefabricated component (2); the insertion portion is the plug (3-31) and is connected to the lower end of the intermediate rod (3-32); the second joint (3-2) comprises a threaded sleeve, the threaded sleeve is embedded in the lower end surface of the upper prefabricated component (1) and is connected to the main reinforcement of the upper prefabricated component (1); the threaded connection portion (3-33) is a stud and is connected to the upper end of the intermediate rod (3-32); the threaded connection portion (3-33) is threadedly connected to the inner threaded hole of the threaded sleeve.

4. The prefabricated component assembly according to claim 2, characterized in that: It also includes a stop sleeve (3-6), which is installed in the mounting hole (3-17) and is matched and connected with the internal thread (3-15) on the hole wall of the mounting hole (3-17); the positioning clamping ring (3-8) is indirectly abutted against the mounting tube through the stop sleeve (3-6); the inner end of the stop sleeve (3-6) forms a hole expansion bevel (3-61), which is matched and abutted with the abutment bevel (3-83) corresponding to the clamping ring, so as to guide the radial and circumferential movement of the clamping ring during the process of outward expansion; the mounting tube includes a first wall portion (3-11), a second wall portion (3-12) and a third wall portion (3-13) arranged in sequence along the axial direction, and the inner The thread (3-15) is arranged on the first wall portion (3-11); the inner diameter of the second wall portion (3-12) is larger than the inner diameter of the first wall portion (3-11) and the inner diameter of the third wall portion (3-13), so that a groove (3-16) is formed between the inner wall of the second wall portion (3-12) and the adjacent end walls of the first wall portion (3-11) and the third wall portion (3-13); the groove (3-16) has a radial depth and an axial length, so that the outer side (3-82) of at least part of the split part (3-81) of the clamping ring can enter the groove (3-16) during the connection process, thereby providing an outward expansion activity area for the positioning clamping ring (3-8).

5. The prefabricated component assembly according to claim 4, characterized in that: The invention also comprises a first tightening nut (3-4) and a second tightening nut (3-5), wherein the first tightening nut (3-4) is sleeved on the intermediate rod portion (3-32) and threadedly matched with the intermediate rod portion (3-32) so as to be able to form abutment with the first joint (3-1); the second tightening nut (3-5) is sleeved on the intermediate rod portion (3-32) and threadedly matched with the intermediate rod portion (3-32) so as to be able to form abutment with the second joint (3-2); and the operating portion (3-321) is a square column section, and the square column section is located between the first tightening nut (3-4) and the second tightening nut (3-5).

6. The prefabricated component assembly according to any one of claims 1 to 5, characterized in that: The end faces of at least two of the transverse prefabricated components (4) are arranged opposite to each other, and the end faces are arranged at a distance from each other, and the distance between them is not less than the distance in the spacing direction from the two most distant vertical connectors (3) in that direction, so as to avoid the vertical connectors (3); the two transverse prefabricated components (4) with the end faces arranged opposite to each other are plug-connected via a transverse connector (5).

7. The prefabricated component assembly according to claim 3, characterized in that: It also comprises a blocking plate (7) for blocking the pouring port (6), wherein the lower side of the blocking plate (7) abuts against the upper side of the transverse prefabricated component (4), and the upper side is arranged higher than the lower end surface of the upper prefabricated component (1) and is arranged close to the transverse side of the upper prefabricated component (1).

8. The prefabricated component assembly according to claim 7, characterized in that: The height between the upper end surface of the upper prefabricated component (1) and the lower end surface of the lower prefabricated component (2) is not less than 15 centimeters; the upper and lower heights of the pouring opening (6) are not less than 5 centimeters; and the overlap width of the transverse prefabricated component (4) on the lower prefabricated component (2) is between 3 centimeters and 6 centimeters.

9. The prefabricated component assembly according to claim 8, characterized in that: The gap cavity (8) is filled with casting material to wrap the gap portion between the transverse prefabricated component (4), the upper prefabricated component (1) and the lower prefabricated component (2), and to wrap the transverse connecting member (5) and the vertical connecting member (3); the casting material is concrete.

10. A connector for prefabricated components, characterized in that: The method is applied to the prefabricated component combination according to any one of claims 1 to 9, and is used to connect an upper prefabricated component (1) and a lower prefabricated component (2) of the prefabricated component combination.

11. A connector for prefabricated components, used for connecting an upper prefabricated component (1) and a lower prefabricated component (2); characterized in that: The invention comprises a first joint (3-1), a second joint (3-2) and a connecting rod (3-3), wherein the connecting rod (3-3) comprises an intermediate rod portion (3-32), a threaded connecting portion (3-33) connected to one end of the intermediate rod portion (3-32) and an inserting portion connected to the other end of the intermediate rod portion (3-32), wherein the threaded connecting portion (3-33) is connected to the second joint (3-2) via threads extending upward and downward, wherein the inserting portion is plugged and matched with the first joint (3-1) via a plug (3-31) and an elastic clamping hole (3-84) in an upward and downward manner, and the plug (3-31) is clamped by the elastic clamping hole (3-84) to transmit tension and pressure in the upward and downward directions, wherein one of the first joint (3-1) and the second joint (3-2) is used to be connected to a main reinforcement of the upper prefabricated component (1), and the other is used to be connected to a main reinforcement of the lower prefabricated component (2); The length of the intermediate rod (3-32) is not less than 12 centimeters so as to be able to cross the transverse prefabricated component (4) in the vertical direction; the transverse prefabricated component (4) is inserted between the lower end surface of the upper prefabricated component (1) and the upper end surface of the lower prefabricated component (2) and overlapped on the upper end surface of the lower prefabricated component (2); The intermediate rod portion (3-32) has an operating portion (3-321) for operating the connection member to rotate, and the operating portion (3-321) is located at the upper section of the intermediate rod portion (3-32).

12. A prefabricated component, comprising a prefabricated body, wherein the prefabricated body is an upper prefabricated component or a lower prefabricated component, characterized in that: It also includes a connecting piece as described in claim 10 or 11, wherein the connecting piece is connected to the main reinforcement of the prefabricated body.

13. A method for connecting a prefabricated component assembly, characterized in that: The prefabricated component combination is the prefabricated component combination according to any one of claims 1 to 9, The steps include: Overlapping the upper end surface of the lower prefabricated component (2) with the transverse prefabricated component (4); The upper prefabricated component (1) is placed so that the connecting rod (3-3) of the vertical connecting member (3) and the first joint (3-1) are plugged in and matched with each other through the plug (3-31) and the elastic clamping hole (3-84), and the lower end surface of the upper prefabricated component (1) is higher than the upper side surface of the transverse prefabricated component (4) to form a pouring port (6), wherein one of the first joint (3-1) and the second joint (3-2) of each of the vertical connecting members (3) is connected to the main reinforcement of the upper prefabricated component (1), and the other is connected to the main reinforcement of the lower prefabricated component (2), and the connecting rod (3-3) and the second joint (3-2) are connected via threads extending up and down; Operating the operating portion (3-321) on the connecting rod (3-3) to drive the connecting rod (3-3) to rotate, so that the plug (3-31) of the connecting rod (3-3) moves in a direction of exiting the elastic clamping hole (3-84) until the elastic clamping hole (3-84) is pushed to clamp the plug (3-31); Casting is performed through the casting opening (6) into the gap between the lower end surface of the upper prefabricated component (1) and the upper end surface of the lower prefabricated component (2).

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