CN215858359U - Dry-type connection structure of prefabricated wall and dry-type connection prefabricated wall - Google Patents
Dry-type connection structure of prefabricated wall and dry-type connection prefabricated wall Download PDFInfo
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- CN215858359U CN215858359U CN202121281020.2U CN202121281020U CN215858359U CN 215858359 U CN215858359 U CN 215858359U CN 202121281020 U CN202121281020 U CN 202121281020U CN 215858359 U CN215858359 U CN 215858359U
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Abstract
The utility model relates to a dry type connecting structure of a prefabricated wall and the dry type connecting prefabricated wall, wherein the dry type connecting structure comprises a wall top connecting box (4), a wall bottom connecting box (5) and a connecting piece (2), the wall top connecting box (4) and the wall bottom connecting box (5) are correspondingly embedded at the wall top and the wall bottom of the prefabricated wall (1), and the connecting piece (2) is used for correspondingly connecting the wall bottom connecting box (5) in the upper prefabricated wall (1) with the wall top connecting box (4) in the lower prefabricated wall (1) to provide prestress when two prefabricated walls (1) are connected. The dry-type connection prefabricated wall comprises a prefabricated wall (1) and a dry-type connection structure. Compared with the prior art, the utility model has the advantages that the stress is clear, the prestress is applied through the connecting piece (2), the cracking of the connecting part is avoided, the construction defects of non-compact grouting, grouting leakage, steel bar cutting or dislocation and the like of the sleeve connection are avoided, the water seepage hidden danger of the outer wall connecting part is eliminated, and meanwhile, the construction is simple and efficient, the quality visual inspection is realized, and the safety and the reliability are realized.
Description
Technical Field
The utility model relates to the technical field of assembly type building components, in particular to a dry type connecting structure of a prefabricated wall and a dry type connecting prefabricated wall.
Background
The fabricated building is a building with the main parts of a structure system, an outer protection system, equipment, a pipeline system and an inner installation system integrated by prefabricated parts.
The assembled concrete building has the structure system with some or all members produced in prefabricated member factory, and the members are transported to the construction site in corresponding transportation mode and assembled in reliable connection technology in reliable installation mode and installation machine.
The integral performance of the structure is similar to that of a cast-in-place structure when the stressed steel bars are connected in a safe and reliable mode and the joint parts of the prefabricated components and cast-in-place and post-cast concrete are joint positions, namely joints, rough surfaces, key grooves and other construction measures are adopted between new concrete and old concrete at the joints. Under the condition, the assembled integral structure can be used for analyzing various structural design conditions by adopting the same method as a cast-in-place concrete structure, namely, the design concept of the same cast-in-place structure is adopted, and meanwhile, the key components are treated by reinforcement measures. Therefore, the connection of the joint of the prefabricated part and the cast-in-place concrete of the prefabricated part is of great importance to the structural safety and becomes a key technology for judging whether the integral performance of the fabricated building can meet the integral performance. The node design of the connecting part of the prefabricated parts needs to fully consider the production and construction convenience of the prefabricated parts, and meanwhile, a proper connecting technology needs to be adopted to ensure the effective stress transfer of the connecting part.
The pressure at the joint is directly transmitted through post-cast concrete, grouting material or sitting slurry; the tension is transmitted through the steel bars and the embedded parts which are connected in various modes, which is called as steel bar connection technology; the shearing force is borne by the bonding strength of the concrete of the bonding surface, the friction and shearing action of the key groove or the rough surface, the reinforcing steel bar and the pin bolt and shearing action; static friction can take up a portion of the shear force when the joint is under compression, a technique known as joint connection.
The connection technology of the steel bars is a key technology for transmitting tensile force in an assembled concrete structure, and the connection part firstly ensures that internal force can be smoothly transmitted under the action of load and secondly requires that the connection part has enough rigidity and good restoring force characteristic. At present, the sleeve grouting connection is mainly adopted, a single ribbed steel bar is inserted into a metal sleeve, a grouting mixture is injected, the mixture is hardened to form a whole body, and the force transmission steel bar butt joint connection is realized, namely the sleeve grouting connection.
The grouting quality has a crucial influence on the actual bearing capacity of the steel bar sleeve grouting connection joint, the manufacturing precision of the component and the construction technical level of field personnel can influence the grouting compactness, and phenomena of non-compact grouting, grouting leakage, steel bar truncation or dislocation and the like often occur in construction. The main reasons are: foreign matters exist in the sleeve, so that grouting is difficult; slurry leakage and defects caused by irregular operation in grouting; the accuracy of the component or the installation accuracy is poor, and the reinforcing steel bars are cut off and cut short when the component is forced to be in place. It is also very difficult to repair once construction defects occur. Therefore, the construction defects are reduced by means of strict supervision, research and development of novel grouting equipment, optimization of construction process and the like.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a dry type connecting structure for prefabricated walls and a dry type connecting prefabricated wall, which overcome the above-mentioned disadvantages of the prior art.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a dry-type connection structure of prefabricated wall, dry-type connection structure include wall top connecting box, wall end connecting box and connecting piece, wall top connecting box and wall end connecting box be used for corresponding pre-buried wall top and wall end position at the prefabricated wall, the connecting piece be arranged in when two prefabricated walls are connected with wall top connecting box in the wall end connecting box in the prefabricated wall of upper strata and the prefabricated wall of lower floor in correspond to be connected and provide prestressing force.
Preferably, wall top connecting box and wall bottom connecting box all include connecting box body, pipe, the connecting box body on be close to prefabricated wall body outside position department for movable protection apron, the pipe fix on the connecting box body and with connecting box body inner space intercommunication, the pipe end be equipped with the pipe visor, when wall top connecting box and wall bottom connecting box are pre-buried to the prefabricated wall in, the pipe on the wall top connecting box upwards extends, the pipe on the connecting box upwards extends at the bottom of the wall, and when two prefabricated walls are connected, the connecting piece run through in the pipe of the connecting box at the bottom of wall top connecting box and the wall that corresponds, the connecting piece both ends respectively with the connecting box body fixed connection of wall top connecting box and wall bottom connecting box.
Preferably, the one end of connecting piece be with the wall top connecting box anchor of lower floor prefabricated wall in connect fixed anchor head, the other end of connecting piece be with the wall bottom connecting box of upper prefabricated wall conflict fixed spiral shell head, correspond, the inside bottom surface of connecting box body of wall bottom connecting box be equipped with upwards protruding be used for with the spiral shell head conflict the metal ring.
Preferably, the conduit is a circular arc-shaped hard conduit.
Preferably, the anchoring head of the connector comprises a pointed tip for piercing the protective cover of the conduit when connecting the bottom box to the top box.
Preferably, the dry connecting structure further comprises a positioning member for positioning the prefabricated walls of the upper and lower floors when the two prefabricated walls are connected.
Preferably, the setting element including correspond the top built-in fitting and the bottom built-in fitting of embedding in position at the top of the wall and wall bottom, the setting element still include regulating part and retaining member, when two prefabricated walls are connected, the regulating part pass through retaining member adjustable and fix on the top built-in fitting in the prefabricated wall of lower floor, the bottom built-in fitting in the prefabricated wall of upper strata with the regulating part top conflict the location.
Preferably, the top embedded part comprises top anchor bars, a top support plate and support rods, the top anchor bars are embedded at the top of the prefabricated wall, the top supporting plate is horizontally fixed above the top anchor bar, the supporting rod is vertically arranged above the top supporting plate in an upward extending manner, the top of the supporting rod is provided with a tapping, the top of the adjusting piece is a convex spherical surface, the bottom of the adjusting piece is provided with an internal thread hole matched with the top of the supporting rod, the adjusting piece is connected with the supporting rod through threads and then is locked and fixed through the locking piece, the bottom embedded part comprises bottom anchor bars and a bottom supporting plate, the bottom anchor bars are embedded at the bottom of the prefabricated wall, the bottom supporting plate is horizontally fixed below the bottom anchor bar, and the bottom anchor bar is provided with a concave spherical surface matched with the convex spherical surface at the top of the adjusting piece.
A dry-type connection prefabricated wall comprises a prefabricated wall and the dry-type connection structure.
Preferably, in any prefabricated wall, the wall top connecting box and the wall bottom connecting box are correspondingly arranged on the wall body in the length direction one by one, the wall top connecting box is arranged on the top of the prefabricated wall and arranged on two side walls in the wall body in a staggered mode, correspondingly, the wall bottom connecting box is arranged on the bottom of the prefabricated wall, the position of the wall bottom connecting box corresponds to that of the wall top connecting box, and the wall top connecting box and the wall bottom connecting box are located on the same vertical line.
Compared with the prior art, the utility model has the following advantages:
(1) the dry type connecting structure of the prefabricated wall is provided with the pre-embedded wall top connecting box and the pre-embedded wall bottom connecting box, when the two prefabricated walls are butted, the wall top connecting box and the wall bottom connecting box are used for providing prestress for the two prefabricated walls through the connecting piece, the joint pressure is increased, so that the shearing bearing capacity of a joint surface can be realized only by the combined action of the bonding strength of the concrete of the joint surface and the key slot or the rough surface, the steel bar is not subjected to shearing force, grouting measures in the guide pipe are eliminated, a novel prefabricated wall connecting mode is provided, the connection quality is visually inspected, slurry leakage and defects caused by irregular operation in grouting are avoided, and the connection quality is improved due to the conditions that the steel bar is cut off and cut short when the steel bar is forced to be in place and the like because of poor component accuracy or poor installation accuracy.
(2) According to the utility model, by applying prestress, tensile stress can not occur at the joint, cracking of the joint is avoided, and the inside and the outside of the connecting piece are not communicated, so that the water seepage hidden trouble of the outer wall is eliminated.
(3) The wall top connecting box and the wall bottom connecting box adopt a waterproof design, so that the connecting piece is prevented from being corroded by air, water and the like to cause corrosion, and the connecting quality is ensured.
(4) The positioning piece is arranged in the dry type connecting structure of the prefabricated wall, so that the horizontal positioning and the elevation can be automatically adjusted in the installation process, the installation process is simplified, and the installation efficiency is improved.
(5) The dry type connecting structure of the prefabricated wall and the prefabricated wall can be subjected to standardized product design and standardized industrial production according to design requirements, so that the economic benefit and the social benefit are greatly improved.
Drawings
FIG. 1 is a schematic structural view of a dry type prefabricated wall according to the present invention;
FIG. 2 is a top view of a dry joined precast wall according to the present invention;
FIG. 3 is a front view of a dry joined precast wall of the present invention;
FIG. 4 is a bottom view of a dry-joined prefabricated wall according to the present invention;
FIG. 5 is a rear view of a dry joined precast wall of the present invention;
FIG. 6 is a schematic diagram of the construction of the wall top junction box of the present invention;
FIG. 7 is a schematic structural view of the wall bottom junction box of the present invention;
FIG. 8 is a schematic view of the construction of the connector of the present invention;
FIG. 9 is a schematic view of one embodiment of the top and bottom wall connector boxes of the present invention;
FIG. 10 is a schematic structural view of a top embedment of the present invention;
FIG. 11 is a schematic view of the structure of the adjusting member of the present invention;
FIG. 12 is a schematic structural view of a bottom embedment of the present invention;
fig. 13 is a schematic view showing the structure of the locker of the present invention.
In the figure, 1 is a prefabricated wall, 2 is a connecting piece, 3 is an anchoring piece, 4 is a wall top connecting box, 5 is a wall bottom connecting box, 6 is a top embedded part, 7 is an adjusting part, 8 is a bottom embedded part, 10 is a bottom metal plate, 11 is a side wall metal plate, 12 is a metal ring, 13 is a top guide pipe, 14 is a bottom guide pipe, 15 is a protective cover plate, 16 is a guide pipe protective cover, 17 is a key groove, 18 is a reinforcing hidden beam, 19 is a prefabricated plate, 20 is a post-pouring layer, 21 is a mortar layer, 22 is an anchoring head, 23 is a screw head, 24 is a top anchor bar, 25 is a top support plate, 26 is a support bar, 27 is a tapping, 28 is a convex spherical surface, 29 is an internal threaded hole, 30 is a bottom anchor bar, 31 is a bottom support plate, and 32 is a concave spherical surface.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Example 1
With reference to fig. 1 to 5, this embodiment provides a dry connection structure of prefabricated wall, and dry connection structure includes wall top connection box 4, wall bottom connection box 5 and connecting piece 2, and wall top connection box 4 and wall bottom connection box 5 are used for corresponding pre-buried wall top and wall bottom position at prefabricated wall 1, and connecting piece 2 is used for providing prestressing force with wall bottom connection box 5 in prefabricated wall 1 of upper strata and wall top connection box 4 in prefabricated wall 1 of lower floor corresponding when two prefabricated walls 1 connect.
Wall top connecting box 4 and wall bottom connecting box 5 all include the connecting box body, the pipe, it is movable protection apron 15 to be close to 1 wall body outside position department of prefabricated wall on the connecting box body, the pipe is fixed on the connecting box body and communicates with connecting box body inner space, the pipe end is equipped with pipe visor 16, wall top connecting box 4 and wall bottom connecting box 5 are pre-buried when in prefabricated wall 1, the pipe on the wall top connecting box 4 upwards extends, the pipe on the wall bottom connecting box 5 upwards extends, and when two prefabricated walls 1 connect, connecting piece 2 runs through in the pipe of wall top connecting box 4 and wall bottom connecting box 5 that correspond, 2 both ends of connecting piece respectively with wall top connecting box 4 and wall bottom connecting box 5's connecting box body fixed connection. The wall top connecting box 4 and the wall bottom connecting box 5 both adopt a waterproof design, and the connecting piece 2 is prevented from being corroded by air, water and the like to cause corrosion.
Specifically, the method comprises the following steps: as shown in fig. 6 and 7, the junction box body in this embodiment is a triangular junction box and adopts metal parts, including the lateral wall metal plate 11 and the bottom metal plate 10, the bottom metal plate 10 needs a thicker metal plate, the lateral wall metal plate 11 uses a thin metal plate, the purpose of the protective cover plate 15 is to conveniently open the protective cover plate 15 outside the prefabricated wall when the prefabricated wall 1 is assembled, thereby conveniently penetrating the connecting piece 2 into the junction box body to realize the connection of the junction box 5 at the bottom of the wall and the junction box 4 on the top of the wall. The bottom metal plate 10 is provided with holes, the hole diameter is slightly larger than the diameter of the guide pipe, the guide pipe is an arc-shaped hard guide pipe, the guide pipe is also a metal guide pipe, the curvature radius of the top guide pipe 13 and the curvature radius of the bottom guide pipe 14 are the same in the embodiment, and the inner diameter of the top guide pipe 13 and the inner diameter of the bottom guide pipe 14 are larger than the outer diameter of the connecting piece 2, so that the top guide pipe 13 and the bottom guide pipe 14 can be butted when the upper prefabricated wall layer and the lower prefabricated wall layer 1 are butted, and the connecting piece 2 can conveniently penetrate through the top guide pipe 13 and the bottom guide pipe 14. The duct protection cover 16 can bear a certain pressure and can be easily punctured by a sharp metal, so that the duct is prevented from being blocked when the prefabricated wall 1 is poured, and the connecting piece 2 can be punctured into the duct protection cover 16 when the connecting piece 2 is arranged. As shown in fig. 9, in order to process the top wall junction box 4 and the bottom wall junction box 5, a hollow junction box body is formed by folding a metal piece, and a protective cover plate 15 and a conduit protective cover 16 are additionally arranged.
As shown in fig. 8, one end of the connecting member 2 is an anchoring head 22 anchored and fixed with the wall top connecting box 4 in the lower prefabricated wall 1, the other end of the connecting member 2 is a screw head 23 abutted and fixed with the wall bottom connecting box 5 in the upper prefabricated wall 1, the screw head 23 is provided with threads, and the end part of the screw head is conical, correspondingly, the inner bottom surface of the connecting box body of the wall bottom connecting box 5 is provided with a metal ring 12 protruding upwards and used for abutting against the screw head 23. The anchor head 22 of the connector 2 comprises a pointed tip which pierces the catheter protection cap 16 when connecting the bottom box 5 and the top box 4. The anchoring head 22 on the connecting piece 2 is anchored and fixed with the wall top connecting box 4 in the lower prefabricated wall 1 through the anchoring piece 3. The connecting piece 2 is a high-strength metal connecting piece made of materials including but not limited to high-strength steel bars, steel materials, prestressed steel wires and the like, and the anchoring piece 3 is also a metal piece. The center of the anchoring piece 3 is provided with an internal thread hole 29 which is square or regular hexagon in shape.
As a preferred embodiment, the dry connecting structure further comprises a positioning member 22 for positioning the prefabricated walls 1 on the upper and lower floors when two prefabricated walls 1 are connected, wherein the positioning member 22 is a metal member.
Specifically, as shown in fig. 10 to 13, the positioning element 22 includes a top embedded part 6 and a bottom embedded part 8 which are embedded in the wall top and the wall bottom, and the positioning element 22 further includes an adjusting part 7 and a locking part 9, when two prefabricated walls 1 are connected, the adjusting part 7 is adjustably fixed on the top embedded part 6 in the lower prefabricated wall 1 through the locking part 9, and the bottom embedded part 8 in the upper prefabricated wall 1 is abutted against the top of the adjusting part 7 for positioning.
The top embedded part 6 comprises a top anchor bar 24, a top support plate 25 and a support rod 26, the top anchor bar 24 is embedded at the top of the prefabricated wall 1, the top support plate 25 is horizontally fixed above the top anchor bar 24, the support rod 26 is upwards extended and arranged perpendicular to the top support plate 25, the top of the support rod 26 is provided with a tapping 27, the top of the adjusting part 7 is a convex spherical surface 28, the bottom of the adjusting part 7 is provided with an internal threaded hole 29 matched with the top of the support rod 26, the adjusting part 7 is in threaded connection with the support rod 26 and then locked and fixed through a locking part 9, the bottom embedded part 8 comprises a bottom anchor bar 30 and a bottom support plate 31, the bottom anchor bar 30 is embedded at the bottom of the prefabricated wall 1, the bottom support plate 31 is horizontally fixed below the bottom anchor bar 30, the bottom anchor bar 30 is provided with a concave spherical surface 32 matched with the convex spherical surface 28 at the top of the adjusting part 7, and the spherical surface radius of the convex spherical surface 28 is smaller than that of the concave spherical surface 32, therefore, after the two are butted, the two can be automatically centered through the action of gravity.
Example 2
The embodiment provides a dry-type connection prefabricated wall, which comprises a prefabricated wall 1 and a dry-type connection structure, wherein the dry-type connection structure is the same as that in embodiment 1, and details are not repeated in this embodiment.
As shown in fig. 2 to 5, in any prefabricated wall 1, a plurality of wall top connection boxes 4 and wall bottom connection boxes 5 are arranged in a one-to-one correspondence manner along the length direction of the wall body, the wall top connection boxes 4 are arranged at the top of the prefabricated wall 1 and are arranged on two side walls in the wall body in a staggered manner, correspondingly, the wall bottom connection boxes 5 are arranged at the bottom of the prefabricated wall 1, the positions of the wall bottom connection boxes 5 correspond to the positions of the wall top connection boxes 4, and the wall top connection boxes and the wall bottom connection boxes are located on the same vertical line. By staggered arrangement is meant: inside prefabricated wall 1, arrange a wall top connecting box 4 at the inner wall position that is close to the prefabricated wall earlier, then, arrange a wall top connecting box 4 again at the outer wall position that is close to the prefabricated wall, then, continue to arrange a wall top connecting box 4 at the inner wall position that is close to the prefabricated wall, analogize and so on and form the staggered arrangement form, can see especially the distribution of wall top connecting box 4 and wall bottom connecting box 5 in fig. 2 and fig. 4. In addition, a plurality of positioning pieces 22 are arranged in any prefabricated wall 1 along the length direction of the wall body, so that the horizontal positioning and the elevation can be automatically adjusted through the positioning pieces 22 in the installation process, the installation process is simplified, and the installation efficiency is improved.
In addition, shear grooves 17 are formed in four side edges of the prefabricated wall body 1, and reinforcing hidden beams 18 are arranged on the top and bottom of the wall of the prefabricated wall body 1.
The dry method connecting method of the prefabricated wall comprises the following steps: the method comprises the steps of assembling a wall top connecting box 4, a wall bottom connecting box 5 and a positioning piece 22 to manufacture a prefabricated wall body 1, and connecting two prefabricated wall bodies 1 into an integral wall body through a post-pouring layer 20, a mortar setting layer 21, a connecting piece 2 and an anchoring piece 3. The production and assembly process of the dry-type connecting prefabricated wall is described in detail as follows:
1. processing the connecting pieces 2 and the matched anchoring pieces 3 in batches;
2. batch processing of a side wall metal plate 10, a bottom metal plate 11, a metal ring 12, a top guide pipe 13, a bottom guide pipe 14, a protective cover plate 15 and a guide pipe protective cover 16;
3. assembling a side wall metal plate 10, a bottom metal plate 11, a top conduit 13, a protective cover plate 15 and a conduit protective cover 16 into a wall top connecting box 4;
4. assembling a side wall metal plate 10, a bottom metal plate 11, a metal ring 12, a bottom conduit 14, a protective cover plate 15 and a conduit protective cover 16 into a wall bottom connecting box 5;
5. processing a top embedded part 6, a bottom embedded part 8, an adjusting part 7 and a locking part 9 in batches;
6. processing a prefabricated wall body mould, and assembling to complete the mould;
7. processing a reinforcement cage required by the prefabricated wall;
8. assembling the reinforcement cage into a prefabricated wall mold;
9. fixing a wall top connecting box 4 and a top embedded part 6 at the designed position of the wall top;
10. fixing a wall bottom connecting box 5 and a bottom embedded part 8 at the design position of the wall bottom;
11. pouring concrete, and curing the prefabricated wall;
12. when the strength requirement is met, demolding is carried out, and the product is transported to an installation site;
13. installing a lower prefabricated wall 1;
14. installing the laminated slab 19, binding post-cast layer steel bars, and skipping the process if the post-cast layer 20 is not provided with the laminated slab 19;
15. firstly installing a locking piece 9-a locking nut matched with the adjusting piece 7 on the top embedded part 6, enabling the length from the upper end of the adjusting piece 7 to the locking nut to be larger than the length of the internal thread of the adjusting piece 7, then installing the adjusting piece 7, measuring the elevation, adjusting to the designed elevation, and then locking by using the locking piece 9-the locking nut matched with the adjusting piece 7;
16. installing auxiliary measures required by laying the sitting slurry, and laying the sitting slurry to form a sitting slurry layer 21;
17. installing a layer of prefabricated wall 1, and automatically adjusting the wall to a design coordinate through an installed adjusting piece 7 after the wall is approximately in place;
18. temporarily fixing the wall body which is installed at this time;
19. after the strength requirement of the mortar is met, opening a movable protective cover plate 15 of the wall bottom connecting box 5, penetrating the connecting piece 2 into the wall bottom connecting box 5, penetrating the connecting piece 2 to the bottom guide pipe 14 and the top guide pipe 13 in sequence, and penetrating the guide pipe protective covers 16 on the bottom guide pipe 14 and the top guide pipe 13 in sequence in the process;
20. the connecting piece 2 enters a wall top connecting box 4 in the lower prefabricated wall 1, and the anchoring piece 3 is installed by using a torque wrench, so that the pretension of the connecting piece 2 meets the design requirement;
21. so far, the whole installation is completed.
The analysis of the prefabricated specification "technical specification of prefabricated concrete structure" JGJ1-2014 shows that:
VuE＝0.6fyAsd+0.8N
in the formula: vuE-design value of shear bearing capacity of joint under earthquake design condition;
fy-design value of tensile strength of the reinforcing bar passing vertically through the joint plane;
n is the designed value of the axial force vertical to the joint surface corresponding to the designed value V of the shearing force, the pressure is positive, and the tension is negative;
Asd-the shear reinforcement area passing vertically through the faying surface.
The utility model applies prestress by the connecting piece 2 and increases the joint pressure N, so that the shearing bearing capacity of the joint surface can be realized by the combined action of the bonding strength of the concrete of the joint surface and the key slot or the rough surface, thereby leading the steel bar not to bear the shearing force and eliminating the grouting measure in the guide pipe. Through applying prestressing force, tensile stress can not appear in the junction, stops the fracture of junction, and the connecting piece is interior outer not link up to eliminate the infiltration hidden danger of outer wall.
The materials are common, and the related parts of the utility model can be made of the materials commonly used in the market. Visual inspection and inspection of connection quality avoid slurry leakage and defects caused by irregular operation in grouting, such as the situation that the steel bar is cut off and cut short when the steel bar is forced to be in place due to poor component accuracy or installation accuracy, and the like, thereby improving the connection quality. But automatic adjustment horizontal location and elevation in the installation simplify the installation procedure, improve the installation effectiveness.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. The utility model provides a dry-type connection structure of prefabricated wall, its characterized in that, dry-type connection structure include wall top connecting box (4), wall bottom connecting box (5) and connecting piece (2), wall top connecting box (4) and wall bottom connecting box (5) be used for corresponding pre-buried wall top and wall bottom position at prefabricated wall (1), connecting piece (2) be arranged in when two prefabricated walls (1) are connected with wall bottom connecting box (5) in upper prefabricated wall (1) and wall top connecting box (4) in lower floor prefabricated wall (1) correspond and are connected and provide prestressing force.
2. The dry type connecting structure of the prefabricated wall as claimed in claim 1, wherein the wall top connecting box (4) and the wall bottom connecting box (5) each comprise a connecting box body and a guide pipe, a movable protective cover plate (15) is provided on the connecting box body at a position close to the outer side of the wall body of the prefabricated wall (1), the guide pipe is fixed on the connecting box body and is communicated with the inner space of the connecting box body, a guide pipe protective cover (16) is provided at the end of the guide pipe, when the wall top connecting box (4) and the wall bottom connecting box (5) are pre-embedded in the prefabricated wall (1), the guide pipe on the wall top connecting box (4) extends upwards, the guide pipe on the wall bottom connecting box (5) extends upwards, and when two prefabricated walls (1) are connected, the connecting piece (2) penetrates through the guide pipe of the corresponding wall top connecting box (4) and the wall bottom connecting box (5), the two ends of the connecting piece (2) are respectively fixedly connected with the connecting box bodies of the wall top connecting box (4) and the wall bottom connecting box (5).
3. A dry type connecting structure of precast walls according to claim 2, wherein one end of the connecting member (2) is an anchoring head anchored with the wall top connection box (4) in the lower precast wall (1), and the other end of the connecting member (2) is a screw head abutted with the wall bottom connection box (5) in the upper precast wall (1), and correspondingly, the inner bottom surface of the connection box body of the wall bottom connection box (5) is provided with a metal ring (12) protruded upward for abutting with the screw head.
4. A dry-type connecting structure for precast walls according to claim 2, wherein the guide pipe is a circular arc-shaped hard guide pipe.
5. A drywall dry-type joint structure as set forth in claim 3, wherein the anchoring head of the connector (2) comprises a pointed tip for piercing the protective cover (16) of the conduit when joining the bottom box (5) to the top box (4).
6. A drywall dry-type connecting structure as set forth in claim 1, wherein said drywall dry-type connecting structure further comprises positioning members (22) for positioning the upper and lower prefabricated walls (1) when the two prefabricated walls (1) are connected.
7. The dry-type connection structure of prefabricated walls according to claim 6, wherein the positioning member (22) comprises a top embedded part (6) and a bottom embedded part (8) which are embedded in the top and bottom positions of the wall correspondingly, the positioning member (22) further comprises an adjusting part (7) and a locking part (9), when two prefabricated walls (1) are connected, the adjusting part (7) is adjustably fixed on the top embedded part (6) in the lower prefabricated wall (1) through the locking part (9), and the bottom embedded part (8) in the upper prefabricated wall (1) is abutted against the top of the adjusting part (7) for positioning.
8. The dry type connection structure of the precast wall according to claim 7, wherein the top embedded part (6) comprises a top anchor bar (24), a top support plate (25) and a support bar (26), the top anchor bar (24) is buried at the top of the precast wall (1), the top support plate (25) is horizontally fixed above the top anchor bar (24), the support bar (26) is vertically and upwardly extended from the top support plate (25), the top of the support bar (26) is provided with a tapping (27), the top of the adjusting part (7) is a convex spherical surface (28), the bottom of the adjusting part (7) is provided with an internal threaded hole (29) matched with the top of the support bar (26), the adjusting part (7) is locked and fixed by the locking part (9) after being in threaded connection with the support bar (26), the bottom embedded part (8) comprises bottom anchor bars (30) and a bottom supporting plate (31), the bottom anchor bars (30) are embedded at the bottom of the prefabricated wall (1), the bottom supporting plate (31) is horizontally fixed below the bottom anchor bars (30), and concave spherical surfaces (32) matched with the convex spherical surfaces (28) at the tops of the adjusting parts (7) are arranged on the bottom anchor bars (30).
9. A dry-joined precast wall comprising a precast wall (1), characterized by further comprising a dry-joined structure according to any one of claims 1 to 8.
10. A dry type connecting structure of a prefabricated wall according to claim 9, wherein in any one prefabricated wall (1), the wall top connecting boxes (4) and the wall bottom connecting boxes (5) are correspondingly arranged in plurality along the length direction of the wall body, the wall top connecting boxes (4) are arranged at the top of the prefabricated wall (1) and are staggered on the two side walls in the wall body, correspondingly, the wall bottom connecting boxes (5) are arranged at the bottom of the prefabricated wall (1), and the positions of the wall bottom connecting boxes (5) correspond to the positions of the wall top connecting boxes (4), and the wall top connecting boxes and the wall bottom connecting boxes are positioned on the same vertical line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121281020.2U CN215858359U (en) | 2021-06-09 | 2021-06-09 | Dry-type connection structure of prefabricated wall and dry-type connection prefabricated wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121281020.2U CN215858359U (en) | 2021-06-09 | 2021-06-09 | Dry-type connection structure of prefabricated wall and dry-type connection prefabricated wall |
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