A precast concrete member of a construction which is convenient to assemble

Abstract

The application relates to the technical field of assembled building, and discloses a prefabricated concrete component convenient for assembly structure, which comprises a prefabricated concrete component main body, guide grooves are arranged on the two sides of the main body, a longitudinal positioning assembly is slidably connected in the main body, a positioning groove is arranged on the top of the main body, lateral guide assemblies are arranged on the two sides of the main body, and a grouting connecting groove is arranged on the main body; after the lateral guide assemblies are inserted into the guide grooves, the horizontal guide rods are driven to slide along the inclined grooves under the action of the self weight of the component, the inverted conical positioning pins of the longitudinal positioning assembly are inserted into the bottom positioning groove, and the axes of the upper and lower components are aligned and self-locked; the inclined grooves and the horizontal guide rods cooperatively form transverse self-guiding, the left and right components are forced to be closely attached to each other, and then the mortar in the grouting connecting groove fills the inverted trapezoidal upper grouting groove and the normal trapezoidal lower grouting groove, so that a wedge-shaped locking structure is formed. The application solves the problems of low assembly precision and poor efficiency in the prior art, has small joint error, short single-node assembly time, high structural strength, and is suitable for large-scale assembled building construction.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a precast concrete component that facilitates assembly. Background Technology

[0002] In the field of industrialized construction, the assembly and connection technology of precast concrete components has been widely used in prefabricated building structures. Currently, the mainstream connection methods for precast components include bolt connections, grouting sleeve connections, and welding of embedded steel plates. For example, high-strength bolts are used to mechanically connect adjacent components by pre-setting bolt holes in the precast components; or cement-based mortar is filled into grouting sleeves to anchor the reinforcing steel bars, forming an integral load-bearing system. While these technologies can achieve component connections, they generally rely on precise on-site measurements, complex positioning fixtures, and professional construction personnel. In large-scale construction, the difficulty of balancing assembly efficiency and connection reliability becomes apparent.

[0003] Regarding the aforementioned and existing related technologies, the inventors believe that the following defects often exist: First, when connecting in the vertical direction, the alignment accuracy of bolt holes or grouting sleeves is required to be extremely high, but manual measurement and hoisting lead to large axial deviations, resulting in uneven joints and affecting the overall structure; Second, the gaps in horizontal splicing are usually large, requiring additional sealing materials, which increases the construction process and may also create leakage risks; Third, traditional connection methods mostly rely on mechanical locking or mortar setting force, which is prone to loosening under load. The complex positioning and fixing process results in a long assembly time for a single node, making it difficult to meet the needs of rapid construction, and it also requires high technical skills from operators, resulting in high labor costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of inconvenient installation and low structural strength. To this end, we propose a precast concrete component that is easy to assemble.

[0005] To achieve the above objectives, this application adopts the following technical solution: a precast concrete component for easy assembly, comprising: a precast concrete component body, guide grooves provided on both sides of the interior of the precast concrete component body, the guide grooves communicating with the outside from the top and bottom of the side of the precast concrete component body; a longitudinal positioning component slidably connected to the lower interior of the guide grooves, the longitudinal positioning component extending outward from the bottom of the precast concrete component body; positioning grooves provided on both sides of the top of the precast concrete component body, the longitudinal positioning components on two adjacent sets of precast concrete component bodies corresponding to the positioning grooves, used to achieve positioning of adjacent precast concrete component bodies; lateral guide components installed on both sides of the precast concrete component body, the lateral guide components on two adjacent sets of precast concrete component bodies corresponding to the guide grooves, the lateral guide components being inserted from the guide grooves on the side of the precast concrete component body, applying pressure downward through their own weight to the longitudinal positioning components in the guide grooves, causing the longitudinal positioning components to insert downward into the positioning grooves of the bottom precast concrete component body.

[0006] Preferably, the precast concrete component has a steel reinforcement skeleton inside, which is composed of two sets of steel mesh welded together.

[0007] Preferably, hooks are provided at both the front corner and the rear corner of the reinforced steel frame. The hooks are U-shaped and exposed on the surface of the precast concrete component. They are used to suspend the precast component during installation. After installation, the exposed part of the precast concrete component is cut off by a cutting machine.

[0008] Preferably, the guide groove includes a horizontal guide groove, an inclined groove, and a vertical groove that are interconnected, with the horizontal guide groove and the inclined groove communicating with the outside from the side of the precast concrete component body.

[0009] Preferably, the width of the horizontal guide groove and the inclined groove are equal, and the width of the vertical groove is less than the width of the horizontal guide groove and the inclined groove.

[0010] Preferably, the guide channel further includes an upper sliding channel and a lower limiting channel that are longitudinally distributed inside the main body of the precast concrete component. The top of the upper sliding channel is connected to the inclined channel and the vertical channel, and the bottom is connected to the lower limiting channel. The lower limiting channel is connected to the bottom outside of the main body of the precast concrete component.

[0011] Preferably, the longitudinal positioning component includes an upper guide slide rod, a lower limit slide post, and an inverted cone positioning pin connected sequentially from top to bottom. The upper guide slide rod is slidably connected in the upper sliding channel and its upper end extends into the inclined groove and the vertical groove. The lower limit slide post and the inverted cone positioning pin are slidably connected in the lower limiting channel. The inverted cone positioning pin is inverted cone shape and has rounded corners at its bottom edge.

[0012] Preferably, the lateral guide assembly includes a positioning mounting rod, with a horizontal guide rod vertically welded to one outer end of the positioning mounting rod. The width of the horizontal guide rod is consistent with the width of the horizontal guide groove and the inclined groove, and the diameter of the positioning mounting rod is consistent with the width of the vertical groove. A fixing protrusion is fixedly installed at the other end of the positioning mounting rod, and protrusions are provided on the front and rear surfaces of the fixing protrusion. The lateral guide assembly also includes an installation groove provided on the side of the main body of the precast concrete component, and the fixing protrusion is fixed in the installation groove by adhesive.

[0013] Preferably, the longitudinal positioning component and the lateral guide component are made of steel, and the interior of the positioning groove is bonded with a metal bushing. The horizontal guide groove, the inclined groove and the vertical groove in the guide groove are formed by a disappearing core mold, which includes a sand mold made of quartz sand and binder. The upper sliding channel and the lower limiting channel are formed by a fixed metal core mold preset at the bottom of the mold, and their surfaces are coated with a release agent to ensure smooth demolding after the concrete hardens.

[0014] Preferably, the interior of the precast concrete component body is further provided with a grouting connection groove. The grouting connection groove includes an inverted trapezoidal upper grouting groove located above the interior of the precast concrete component body and connected to the outside, a regular trapezoidal lower grouting groove located below the interior of the precast concrete component body and connected to the outside, and a grouting flow channel connecting the inverted trapezoidal upper grouting groove and the regular trapezoidal lower grouting groove. After the upper and lower precast concrete component bodies are grouted, the mortar in the inverted trapezoidal upper grouting groove and the regular trapezoidal lower grouting groove between the two sets of precast concrete component bodies forms a locking structure. The grouting connection groove is formed by a disappearing core mold.

[0015] The technical effects and advantages of this invention are as follows:

[0016] In this invention, after the lateral guide component is inserted into the guide groove, the horizontal guide rod slides down the inclined groove by the self-weight of the precast concrete component, pushing the inverted conical positioning pin of the longitudinal positioning component into the positioning groove of the bottom component. This not only achieves the alignment of the axes of the upper and lower components, but also reduces the joint error by the extrusion force, thus solving the problem of low vertical connection accuracy in the prior art.

[0017] In this invention, the cooperation between the inclined groove and the horizontal guide rod forms a self-guiding mechanism for lateral assembly. When the left and right components are spliced, the lateral guide component slides down the inclined groove under its own weight, forcing the sides of the components to fit tightly together. At the same time, after the left and right components are spliced, their overall weight is applied to the lower component, further reducing the joint. Combined with the grouting in the grouting connection groove, the mortar locking structure of the inverted trapezoidal upper grouting groove and the regular trapezoidal lower grouting groove forms a rigid connection, resulting in a stable structure. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall structural assembly state of the present invention;

[0020] Figure 2 This is a front view of the overall structure of the present invention;

[0021] Figure 3 This is a perspective view of the overall structure of the present invention;

[0022] Figure 4 This is a longitudinal structural sectional view of the present invention;

[0023] Figure 5 This is an exploded view of the overall structure of the present invention;

[0024] Figure 6 This is a cross-sectional view of the present invention.

[0025] Legend: 1. Main body of precast concrete component; 2. Reinforced steel frame; 21. Hook; 3. Longitudinal positioning component; 31. Upper guide slide rod; 32. Lower limit slide column; 33. Inverted cone positioning pin; 4. Positioning groove; 5. Guide groove; 51. Horizontal guide groove; 52. Inclined groove; 53. Vertical groove; 54. Upper sliding channel; 55. Lower limit channel; 6. Lateral guide component; 61. Positioning installation rod; 62. Horizontal guide rod; 63. Fixing protrusion; 64. Installation groove; 7. Grouting connection groove; 71. Upper grouting groove; 72. Lower grouting groove; 73. Grouting flow channel. Detailed Implementation

[0026] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0027] Reference Figures 1-6As shown, the present invention provides a technical solution: a precast concrete component with an easy-to-assemble structure, including a precast concrete component body 1, guide grooves 5 are provided on both sides of the interior of the precast concrete component body 1, and the guide grooves 5 communicate with the outside from the top and bottom of the side of the precast concrete component body 1; a longitudinal positioning component 3 is slidably connected to the lower interior of the guide grooves 5, and the longitudinal positioning component 3 extends outward from the bottom of the precast concrete component body 1; positioning grooves 4 are provided on both sides of the top of the precast concrete component body 1, and the longitudinal positioning components 3 on two adjacent sets of precast concrete component bodies 1 correspond to the positioning grooves 4 to realize the positioning of adjacent precast concrete component bodies 1; lateral guide components 6 are installed on both sides of the precast concrete component body 1, and the lateral guide components 6 on two adjacent sets of precast concrete component bodies 1 correspond to the guide grooves 5. The lateral guide components 6 are used to be inserted from the guide grooves 5 on the side of the precast concrete component body 1, and apply pressure downward to the longitudinal positioning components 3 in the guide grooves 5 by their own weight, so that the longitudinal positioning components 3 are inserted downward into the positioning grooves 4 of the bottom precast concrete component body 1.

[0028] like Figure 5 As shown, the precast concrete component body 1 is equipped with a steel reinforcement skeleton 2 inside. The steel reinforcement skeleton 2 is made of Φ12mm HRB400 steel bars welded into a two-way mesh with a mesh spacing of 150mm×150mm. The two sets of steel mesh are fixed by welding with Φ8mm tie bars to form a skeleton structure with a thickness of 80mm.

[0029] like Figure 5 As shown, hooks 21 are provided at the front corner and the rear corner of the steel reinforcement frame 2. The hooks 21 are U-shaped and exposed on the surface of the precast concrete component body 1. They are used to hang the precast component during installation. After installation, the part exposed on the precast concrete component body 1 is cut off by a cutting machine.

[0030] like Figure 6 As shown, the guide groove 5 includes a horizontal guide groove 51, an inclined groove 52 and a vertical groove 53 that are interconnected. The horizontal guide groove 51 and the inclined groove 52 are connected to the outside from the side of the precast concrete component body 1.

[0031] The widths of the horizontal guide groove 51 and the inclined groove 52 are equal, while the width of the vertical groove 53 is less than the widths of the horizontal guide groove 51 and the inclined groove 52.

[0032] The guide groove 5 also includes an upper sliding channel 54 and a lower limiting channel 55 that are longitudinally distributed inside the precast concrete component body 1. The top of the upper sliding channel 54 is connected to the inclined groove 52 and the vertical groove 53, and the bottom is connected to the lower limiting channel 55. The lower limiting channel 55 is connected to the bottom outside of the precast concrete component body 1.

[0033] The longitudinal positioning component 3 includes an upper guide slide rod 31, a lower limit slide post 32, and an inverted cone positioning pin 33 connected sequentially from top to bottom. The upper guide slide rod 31 is slidably connected in the upper sliding channel 54 and its upper end extends into the inclined groove 52 and the vertical groove 53. The lower limit slide post 32 and the inverted cone positioning pin 33 are slidably connected in the lower limiting channel 55. The inverted cone positioning pin 33 is inverted cone shape and has rounded corners at its bottom edge.

[0034] The lateral guide assembly 6 includes a positioning mounting rod 61, with a horizontal guide rod 62 vertically welded to one end of the positioning mounting rod 61. The width of the horizontal guide rod 62 is the same as the width of the horizontal guide groove 51 and the inclined groove 52, and the diameter of the positioning mounting rod 61 is the same as the width of the vertical groove 53. A fixing protrusion 63 is fixedly installed at the other end of the positioning mounting rod 61, and protrusions are provided on the front and rear surfaces of the fixing protrusion 63. The lateral guide assembly 6 also includes an installation groove 64 provided on the side of the precast concrete component body 1, and the fixing protrusion 63 is fixed in the installation groove 64 with glue.

[0035] The longitudinal positioning component 3 and the lateral guide component 6 are made of steel. The positioning groove 4 is internally bonded with a Q235 steel metal bushing with an inner diameter of 32mm. The interference fit with the inverted cone positioning pin 33 is 0.3mm. The horizontal guide groove 51, inclined groove 52 and vertical groove 53 in the guide groove 5 are formed by a disappearing core mold. The disappearing core mold includes a sand mold made of quartz sand and binder. The upper sliding channel 54 and the lower limiting channel 55 are formed by a fixed metal core mold preset at the bottom of the mold. The surface of the core mold is coated with a release agent to ensure smooth demolding after the concrete hardens. Demolding occurs when the concrete strength reaches 70%.

[0036] The interior of the precast concrete component body 1 is also provided with a grouting connection groove 7. The grouting connection groove 7 includes an inverted trapezoidal upper grouting groove 71 located above the interior of the precast concrete component body 1 and connected to the outside, a regular trapezoidal lower grouting groove 72 located below the interior of the precast concrete component body 1 and connected to the outside, and a grouting flow channel 73 connecting the inverted trapezoidal upper grouting groove 71 and the regular trapezoidal lower grouting groove 72. After the upper and lower precast concrete component bodies 1 are grouted, the mortar in the inverted trapezoidal upper grouting groove 71 and the regular trapezoidal lower grouting groove 72 between the two sets of precast concrete component bodies 1 forms a locking structure. The grouting connection groove 7 is formed by a disappearing core mold. After the upper and lower components are spliced, CGM-4 type high-strength non-shrink grout is injected from the inverted trapezoidal upper grouting groove 71. The mortar fills the regular trapezoidal lower grouting groove 72 through the flow channel 73. After solidification, an interlocking structure of inverted trapezoid and regular trapezoid is formed.

[0037] Working principle: During assembly, the bottom component is fixed first, and the upper component is placed so that the longitudinal positioning component 3 under the upper component corresponds to the positioning groove 4 on the bottom component. The guide groove 5 of the upper component is inserted into the guide component 6 on the side component. The weight of the component drives the horizontal guide plate 62 to slide down along the inclined groove 52, while pushing the longitudinal positioning component 3 inside the upper component to insert into the positioning groove 4 on the bottom component. After the components are spliced, the weight of the upper component is transmitted through the lateral guide component 6 to form a suspended support.

[0038] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A precast concrete component with an easily assembled structure, characterized in that, The device includes a precast concrete component body. Guide grooves are provided on both sides of the interior of the precast concrete component body, and these guide grooves communicate with the outside from the top and bottom of the sides of the precast concrete component body. A longitudinal positioning component is slidably connected to the lower interior of the guide grooves, extending outward from the bottom of the precast concrete component body. Positioning grooves are provided on both sides of the top of the precast concrete component body, with the longitudinal positioning components on adjacent sets of the precast concrete component bodies corresponding to the positioning grooves, used to position adjacent precast concrete component bodies. Lateral guide components are installed on both sides of the precast concrete component body, with the lateral guide components on adjacent sets of the precast concrete component bodies corresponding to the guide grooves. The lateral guide components are inserted from the guide grooves on the sides of the precast concrete component body, applying downward pressure on the longitudinal positioning components within the guide grooves through their own weight, causing the longitudinal positioning components to insert downward into the positioning grooves of the bottom precast concrete component body.

2. The precast concrete component with an easy-to-assemble structure according to claim 1, characterized in that: The precast concrete component has a steel reinforcement skeleton inside, which is composed of two sets of steel mesh welded together.

3. A precast concrete component with an easy-to-assemble structure according to claim 2, characterized in that: Hooks are provided at the front corner and the rear corner of the steel reinforcement skeleton. The hooks are U-shaped and exposed on the surface of the precast concrete component. They are used to suspend the precast component during installation. After installation, the exposed part of the precast concrete component is cut off by a cutting machine.

4. A precast concrete component with an easy-to-assemble structure according to claim 1, characterized in that: The guide groove includes a horizontal guide groove, an inclined groove, and a vertical groove that are interconnected. The horizontal guide groove and the inclined groove are connected to the outside from the side of the precast concrete component body.

5. A precast concrete component with an easy-to-assemble structure according to claim 4, characterized in that: The widths of the horizontal guide groove and the inclined groove are equal, while the width of the vertical groove is less than the widths of the horizontal guide groove and the inclined groove.

6. A precast concrete component with an easy-to-assemble structure according to claim 5, characterized in that: The guide groove also includes an upper sliding channel and a lower limiting channel that are longitudinally distributed inside the main body of the precast concrete component. The top of the upper sliding channel is connected to the inclined groove and the vertical groove, and the bottom is connected to the lower limiting channel. The lower limiting channel is connected to the bottom outside of the main body of the precast concrete component.

7. A precast concrete component with an easily assembled structure according to claim 6, characterized in that: The longitudinal positioning component includes an upper guide slide rod, a lower limit slide post, and an inverted cone positioning pin connected sequentially from top to bottom. The upper guide slide rod is slidably connected in the upper sliding channel and its upper end extends into the inclined groove and the vertical groove. The lower limit slide post and the inverted cone positioning pin are slidably connected in the lower limiting channel. The inverted cone positioning pin is inverted cone shape and has rounded corners at its bottom edge.

8. A precast concrete component with an easily assembled structure according to claim 7, characterized in that: The lateral guide assembly includes a positioning mounting rod, with a horizontal guide rod vertically welded to one outer end of the positioning mounting rod. The width of the horizontal guide rod is consistent with the width of the horizontal guide groove and the inclined groove, and the diameter of the positioning mounting rod is consistent with the width of the vertical groove. A fixing protrusion is fixedly installed at the other end of the positioning mounting rod, and protrusions are provided on the front and rear surfaces of the fixing protrusion. The lateral guide assembly also includes an installation groove disposed on the side of the precast concrete component, and the fixing protrusion is fixed in the installation groove by adhesive.

9. A precast concrete component with an easy-to-assemble structure according to claim 6, characterized in that: The longitudinal positioning component and the lateral guide component are made of steel. The positioning groove has a metal bushing bonded inside. The horizontal guide groove, the inclined groove and the vertical groove in the guide groove are formed by a disappearing core mold. The disappearing core mold includes a sand mold made of quartz sand and binder. The upper sliding channel and the lower limiting channel are formed by a fixed metal core mold preset at the bottom of the mold. The surface of the core mold is coated with a release agent to ensure smooth demolding after the concrete hardens.

10. A precast concrete component with an easily assembled structure according to claim 1, characterized in that: The interior of the precast concrete component body is also provided with a grouting connection groove. The grouting connection groove includes an inverted trapezoidal upper grouting groove located above the interior of the precast concrete component body and connected to the outside, a regular trapezoidal lower grouting groove located below the interior of the precast concrete component body and connected to the outside, and a grouting flow channel connecting the inverted trapezoidal upper grouting groove and the regular trapezoidal lower grouting groove. After the upper and lower sets of the precast concrete component bodies are grouted, the mortar in the inverted trapezoidal upper grouting groove and the regular trapezoidal lower grouting groove between the two sets of precast concrete component bodies forms a locking structure. The grouting connection groove is formed by a disappearing core mold.

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