Joint waterproof structure of fabricated building

Abstract

The joint waterproof structure of the fabricated building comprises a first wall body and a second wall body, a left side sealing component is arranged at the right end of the first wall body and comprises a first elastic plate and a second elastic plate which are arranged in a front-back spaced mode, and the left end of the first elastic plate and the left end of the second elastic plate are elastic overhanging ends capable of elastically deforming in the front-back direction; a first arc-shaped plate is arranged at the left end of the first elastic plate, a second arc-shaped plate is arranged at the left end of the second elastic plate, and a cylindrical containing cavity is formed between the first arc-shaped plate and the second arc-shaped plate. The left end of the convex edge of the right sealing component is provided with a sealing column which has an axis extending in the vertical direction and is used for entering the cylindrical containing cavity through the passing opening, and a rubber layer used for being in sealing fit with the inner wall of the cylindrical containing cavity is fixed to the periphery of the sealing column in a vulcanized mode. The technical problem that in the prior art, waterproof sealing is achieved at a seam and a sealing piece completely depends on the elastic deformation capacity of the sealing piece, and the sealing effect is limited is solved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated building construction, and in particular to a joint waterproof structure of a prefabricated building. Background Art

[0002] Prefabricated buildings refer to the production of prefabricated components in factories, and then the assembly of prefabricated components on site. It has many advantages such as short on-site construction period, fast construction speed, less pollution to the site and less impact on the on-site environment. Therefore, prefabricated buildings are increasingly valued and promoted today.

[0003] When the prefabricated walls of an assembled building are connected, prefabricated wall joints will be formed. After the two prefabricated walls are spliced, waterproofing treatment is required at the joints. The waterproofing of the joints is a key position that affects the waterproof performance of the assembled building.

[0004] Existing waterproofing treatments, such as the "Waterproof Structure of Prefabricated Building Joints" disclosed in Chinese patent CN218204973U, include a first wall and a second wall and a joint formed by splicing the first wall and the second wall. The opposite end surfaces of the first wall and the second wall are respectively provided with convex edges and grooves, which are plugged into each other. A water stop plate is provided on the side of the convex edge facing away from the first wall, and a sealing member for abutting and cooperating with the water stop plate is provided in the groove.

[0005] The problem with the existing waterproof structure is that the sealing principle of the seal is to rely on its own elastic deformation to achieve sealing. In the prior art, the seal is installed on a rigid substrate that cannot be elastically deformed, and the sealing is achieved entirely by relying on the elastic deformation of the seal itself. The elastic deformation capacity of the seal is limited, which also leads to the ineffective sealing effect of the seal. In addition, during the assembly of the two walls, since the installation substrate of the seal is a rigid substrate that cannot be elastically deformed, the wall assembly process has very high requirements. If the two walls move too close, the seal may be excessively squeezed by the wall and fail. Summary of the invention

[0006] The object of the present invention is to provide a joint waterproof structure for prefabricated buildings to solve the technical problem in the prior art that the sealing member completely relies on its own elastic deformation ability to achieve waterproof sealing at the joint and the sealing effect is limited.

[0007] In order to solve the above technical problems, the technical solution of a joint waterproof structure of an assembled building in the present invention is as follows: A joint waterproof structure of an assembled building, comprising a first wall and a second wall arranged on the left and right, a left metal connector being arranged at the right end of the first wall, a right metal connector being arranged at the left end of the second wall, a right end of the left metal connector having one or at least two left sealing members arranged at intervals along the front-to-back direction, the left sealing member comprising a first elastic plate and a second elastic plate arranged at intervals along the front-to-back direction, the left ends of the first elastic plate and the second elastic plate being elastic overhanging ends capable of elastic deformation in the front-to-back direction, an expanding structure gradually increasing in spacing from left to right being formed between the first elastic plate and the second elastic plate, a first arc-shaped plate having an axis extending in the up-down direction being arranged at the left end of the first elastic plate, and a second elastic plate having a first arc-shaped plate having an axis coaxially arranged with the first arc-shaped plate being arranged at the left end of the second elastic plate. The left end of the second arc plate is spaced apart from the first arc plate, a cylindrical accommodating cavity is formed between the first arc plate and the second arc plate, a through opening with a diameter smaller than the diameter of the cylindrical accommodating cavity is formed at the connection position of the first elastic plate and the first arc plate and the connection position of the second elastic plate and the second arc plate, a right sealing component corresponding to the left sealing component is arranged at the left end of the right metal connecting piece, the right sealing component includes a convex ridge extending in the up-down direction adapted to the expansion structure, a sealing column with an axis extending in the up-down direction and used for entering the cylindrical accommodating cavity through the through opening is arranged at the left end of the convex ridge, the diameter of the sealing column is larger than the inner diameter of the cylindrical accommodating cavity in the natural state of the first elastic plate and the second elastic plate, and a rubber layer for sealing with the inner wall of the cylindrical accommodating cavity is vulcanized and fixed on the outer periphery of the sealing column.

[0008] Furthermore, the left side sealing component also includes a front side vertical plate and a rear side vertical plate arranged at a front-to-back interval, the left ends of the front side vertical plate and the rear side vertical plate are fixed to the left side metal connecting piece, the right end of the first elastic plate is connected to the right end of the front side vertical plate, and the right end of the second elastic plate is connected to the right end of the rear side vertical plate.

[0009] Furthermore, there are two left-side sealing components, which are a front sealing component and a rear sealing component that are spaced apart in the front-to-rear direction.

[0010] Furthermore, the right end of the rear side vertical plate of the front side sealing component can be elastically deformed in the front-to-back direction, and the right end of the front side vertical plate of the rear side sealing component can be elastically deformed in the front-to-back direction. A drawstring is arranged between the right end of the rear side vertical plate of the front side sealing component and the right end of the front side vertical plate of the rear side sealing component. The joint waterproofing structure also includes a drawstring scissors for cutting the drawstring when the first wall and the second wall move relative to each other. The drawstring scissors include a left blade body arranged on the left metal connecting piece and a right blade body arranged on the right metal connecting piece.

[0011] Furthermore, when the second wall moves leftward relative to the first wall, the right blade pushes the pull belt toward the left, and the pull belt causes the rear vertical plate of the front sealing component and the right end of the front vertical plate of the rear sealing component to swing relative to each other, thereby expanding the width of the passage.

[0012] Furthermore, the left metal connector also includes a U-shaped left metal clasp with an opening facing left and fixed to the right end of the first wall. The first wall includes a first steel bar skeleton and a first precast concrete cast and fixed to the periphery of the first steel bar skeleton and the left side of the left metal clasp. The left side of the left metal clasp is fixed with connecting ribs extending in the left and right directions and welded to the first steel bar skeleton. The left sealing component is arranged on the right side surface of the left metal clasp.

[0013] The beneficial effects of the present invention are as follows: in the present invention, the first wall and the second wall are not completely reinforced concrete structures, but a left metal connector is arranged at the right end of the first wall, and a right metal connector is arranged at the left end of the second wall. After the metal connector structure is adopted, an elastic plate structure can be used. When the first wall and the second wall need to be assembled on site, the second wall moves toward the first wall along the left and right directions, and the sealing column on the second wall enters from right to left through the through opening into the columnar accommodating cavity formed between the first arc plate and the second arc plate. After the sealing column enters the columnar accommodating cavity, the rubber layer on the sealing column is sealed with the inner wall of the columnar accommodating cavity, i.e., the inner wall of the first arc plate and the second arc plate, thereby achieving waterproofing. Since the diameter of the sealing column is larger than the inner diameter of the columnar accommodating cavity in the natural state of the first elastic plate and the second elastic plate, in the present invention, in addition to the elastic deformation of the rubber layer itself, the first elastic plate and the second elastic plate will also generate elastic deformation force to squeeze the rubber layer, thereby improving the waterproof sealing effect of the joint position.

[0014] Furthermore, since the size of the through-port is smaller than the diameter of the sealing column, in order to reduce the extrusion and wear of the rubber layer by the through-port when the sealing column passes through the through-port, in the present invention, the right end of the rear side vertical plate of the front side sealing component can be elastically deformed in the front-to-back direction, and the right end of the front side vertical plate of the rear side sealing component can be elastically deformed in the front-to-back direction. During the movement of the second wall toward the left relative to the first wall, the right side blade pushes the pull belt toward the left, and the pull belt causes the rear side vertical plate of the front side sealing component and the right end of the front side vertical plate of the rear side sealing component to swing relative to each other, thereby expanding the width of the through-port, thereby reducing the extrusion and wear of the rubber layer by the through-port. When the sealing column enters the columnar accommodating cavity, the right side blade and the left side blade come into contact and cooperate to complete the cutting of the pull belt, the rear side vertical plate of the front side sealing component is reset, the front side vertical plate of the rear side sealing component is reset, and the sealing effect of the columnar accommodating cavity and the sealing column is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1It is a schematic structural diagram of an embodiment of the present invention; Figure 2 yes Figure 1 The structural diagram of the second wall; Figure 3 yes Figure 1 The structural diagram of the first wall; Figure 4 yes Figure 3 A schematic diagram of the structure of the middle front side sealing component; 1. The first wall; 2. The second wall; 3. The first wall steel skeleton; 4. The first precast concrete; 5. The connecting ribs; 6. The left metal buckle plate; 7. The front sealing member; 8. The rear sealing member; 9. The sealing column; 10. The right sealing member; 11. The drawstring; 12. The left blade; 13. The right blade; 14. The convex ridge; 15. The blade of the right blade; 16. The front vertical plate; 17. The rear vertical plate; 18. The first elastic plate; 19. The second elastic plate; 20. The first arc plate; 21. The second arc plate; 22. The columnar accommodating cavity; 23. The through-port; 24. The expansion structure; 25. The rubber layer; 26. The cylindrical body. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0017] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0018] An embodiment of a joint waterproof structure of an assembled building in the present invention is as follows: Figures 1 to 4 As shown: it includes a first wall 1 and a second wall 2 arranged on the left and right, a left metal connector is arranged at the right end of the first wall 1, and a right metal connector is arranged at the left end of the second wall.

[0019] The first wall 1 and the second wall 2 are prefabricated in the factory. Taking the first wall as an example, the left metal connector also includes a U-shaped left metal gusset plate 6 fixed to the right end of the first wall with an opening facing left. The first wall includes a first steel bar skeleton and a first precast concrete 4 cast and fixed to the periphery of the first steel bar skeleton 3 and the left side of the left metal gusset plate. The left side of the left metal gusset plate is fixed with a connecting rib 5 extending in the left-right direction and welded to the first steel bar skeleton. Specifically, the connecting rib is welded to the longitudinal steel bar extending in the left-right direction along the length of the first steel bar skeleton. The left sealing member is arranged on the right side surface of the left metal gusset plate. The right metal connector is a U-shaped metal gusset plate structure with an opening facing right, which will not be described in detail here.

[0020] Two left sealing components are arranged on the right side plate surface of the left metal buckle plate and are spaced apart along the front-to-back direction. The two left sealing components are a front sealing component 7 and a rear sealing component 8 spaced apart in the front-to-back direction, and the structures of the front sealing component 7 and the rear sealing component 8 are the same.

[0021] The left sealing member includes a first elastic plate 18 and a second elastic plate 19 which are spaced apart from each other in the front and rear directions. The left ends of the first elastic plate 18 and the second elastic plate 19 are elastic overhanging ends which can be elastically deformed in the front and rear directions. An expanding structure 24 whose spacing gradually increases from left to right is formed between the first elastic plate and the second elastic plate. A first arc plate 20 whose axis extends in the up-down direction is provided at the left end of the first elastic plate 18. A second arc plate 21 which is coaxially arranged with the first arc plate 20 is provided at the left end of the second elastic plate 19. The left end of the first arc plate is spaced apart from the second arc plate. A cylindrical accommodating cavity 22 is formed between the first arc plate 20 and the second arc plate 21. The axis of the cylindrical accommodating cavity extends in the up-down direction. A through opening 23 whose diameter is smaller than the diameter of the cylindrical accommodating cavity is formed at the connecting position of the first elastic plate and the first arc plate and the connecting position of the second elastic plate and the second arc plate. There is a gap between the left ends of the first arc plate and the second arc plate, and the width of the gap is smaller than one-fourth of the width of the through opening.

[0022] The left side sealing member further comprises a front side vertical plate 16 and a rear side vertical plate 17 which are arranged at intervals in front and back. The left ends of the front side vertical plate 16 and the rear side vertical plate 17 are fixed to the left side metal connector. The right end of the first elastic plate 18 is connected to the right end of the front side vertical plate 16, and the right end of the second elastic plate 19 is connected to the right end of the rear side vertical plate 17. The right ends of the front side vertical plate and the rear side vertical plate of the front side sealing member can be elastically deformed in the front-to-back direction, and the right ends of the front side vertical plate and the rear side vertical plate of the rear side sealing member can be elastically deformed in the front-to-back direction. A drawstring 11 is provided between the right end of the rear side vertical plate of the front side sealing member and the right end of the front side vertical plate of the rear side sealing member. In this embodiment, the front side vertical plate, the first elastic plate and the first arc plate are integrally bent and formed, and the rear side vertical plate, the second elastic plate and the second arc plate are integrally bent and formed.

[0023] The right side metal connector is provided with a right side sealing member 10 corresponding to the left side sealing member at the left end, and the right side sealing member includes a convex ridge 14 extending in the up-down direction adapted to the expansion structure, and the cross-sectional shape of the convex ridge 14 is a triangle, and the left end of the convex ridge is provided with a sealing column 9 with an axis extending in the up-down direction for entering the cylindrical accommodation cavity through the through port, and the diameter of the sealing column 9 is larger than the inner diameter of the cylindrical accommodation cavity in the natural state of the first elastic plate and the second elastic plate, and the natural state refers to the state when the first elastic plate and the second elastic plate are not subjected to external force. The sealing column includes a cylindrical body 26 of a metal structure, and a rubber layer 25 for sealing with the inner wall of the cylindrical accommodation cavity is fixed by vulcanization on the outer periphery of the cylindrical body.

[0024] The joint waterproof structure also includes a drawstring scissors for cutting the drawstring when the first wall and the second wall move relative to each other. The drawstring scissors include a left blade body 12 arranged on the left metal connector and a right blade body 13 arranged on the right metal connector. Item 15 in the figure represents the blade of the right blade body. The left end of the blade of the right blade body is located on the left side of the sealing column, and the left blade body is located on the left side of the first arc plate and the second arc plate. During the movement of the second wall to the left relative to the first wall, the right blade body pushes the drawstring to the left, and the drawstring brings the rear side vertical plate of the front side sealing component and the right end of the front side vertical plate of the rear side sealing component to swing relative to each other, thereby expanding the width of the through-port. When the sealing column enters the columnar accommodation cavity through the through-port, the right blade body contacts the left blade body to cut the drawstring 11, and then the rear side vertical plate of the front side sealing component is reset, and the front side vertical plate of the rear side sealing component is reset. For each left side sealing component, the first arc plate is pressed under the action of the first elastic plate, and the second arc plate is pressed under the action of the second elastic plate to squeeze the rubber layer, thereby ensuring the sealing and waterproofing effect of the rubber layer.

[0025] During the on-site assembly of the two walls by moving the second wall to the left relative to the first wall, even if the moving distance of the second wall is not well controlled, for example, the spacing between the second wall and the first wall is too small, the first curved plate and the second curved plate will be relatively opened to avoid the failure of the rubber layer caused by excessive extrusion, thereby reducing the accuracy requirements for on-site installation; in a slightly vibrating environment, for example, when the first wall and the second wall move in the front-to-back direction, the first elastic plate and the second elastic plate can also be deformed to avoid excessive extrusion failure of the rubber layer, and when the first wall and the second wall move a large distance in the front-to-back direction, the front sealing component and the rear sealing component can be deformed as a whole to achieve energy absorption.

[0026] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0027] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0028] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A joint waterproof structure of an assembled building, comprising a first wall and a second wall arranged on the left and right, characterized in that: A left-side metal connector is provided at the right end of the first wall, and a right-side metal connector is provided at the left end of the second wall. The right end of the left-side metal connector has one or at least two left-side sealing components spaced apart in the front-to-back direction. The left-side sealing component includes a first elastic plate and a second elastic plate spaced apart in the front-to-back direction. The left ends of the first elastic plate and the second elastic plate are elastic cantilevered ends that can be elastically deformed in the front-to-back direction. An expanding structure with a gradually increasing spacing from left to right is formed between the first elastic plate and the second elastic plate. A first arc plate with an axis extending in the up-down direction is provided at the left end of the first elastic plate, and a second elastic plate with a left end spaced apart from the first arc plate and coaxially arranged at the left end of the second elastic plate. Two arc plates, a cylindrical accommodating cavity between the first arc plate and the second arc plate, a through opening with a diameter smaller than the diameter of the cylindrical accommodating cavity is formed at the connecting position of the first elastic plate and the first arc plate and the connecting position of the second elastic plate and the second arc plate, a right sealing component corresponding to the left sealing component is arranged at the left end of the right metal connecting piece, the right sealing component includes a convex ridge extending in the up-down direction adapted to the expansion structure, a sealing column with an axis extending in the up-down direction and used for entering the cylindrical accommodating cavity through the through opening is arranged at the left end of the convex ridge, the diameter of the sealing column is larger than the inner diameter of the cylindrical accommodating cavity in the natural state of the first elastic plate and the second elastic plate, and a rubber layer for sealing with the inner wall of the cylindrical accommodating cavity is vulcanized and fixed on the outer periphery of the sealing column.

2. The joint waterproof structure according to claim 1, characterized in that: The left sealing component also includes a front side vertical plate and a rear side vertical plate arranged at a front-to-back interval. The left ends of the front side vertical plate and the rear side vertical plate are fixed to the left metal connecting piece. The right end of the first elastic plate is connected to the right end of the front side vertical plate, and the right end of the second elastic plate is connected to the right end of the rear side vertical plate.

3. The joint waterproof structure according to claim 2, characterized in that: There are two left-side sealing components, which are a front sealing component and a rear sealing component that are spaced apart in the front-rear direction.

4. The joint waterproof structure according to claim 3, characterized in that: The right end of the rear side vertical plate of the front side sealing component can be elastically deformed in the front-to-back direction, and the right end of the front side vertical plate of the rear side sealing component can be elastically deformed in the front-to-back direction. A drawstring is arranged between the right end of the rear side vertical plate of the front side sealing component and the right end of the front side vertical plate of the rear side sealing component. The joint waterproof structure also includes a drawstring scissors for cutting the drawstring when the first wall and the second wall move relative to each other. The drawstring scissors include a left blade body arranged on the left metal connecting piece and a right blade body arranged on the right metal connecting piece.

5. The joint waterproof structure according to claim 4, characterized in that: When the second wall moves leftward relative to the first wall, the right blade pushes the pull belt leftward, and the pull belt causes the rear vertical plate of the front sealing component and the right end of the front vertical plate of the rear sealing component to swing relative to each other, thereby expanding the width of the passage.

6. The joint waterproof structure according to any one of claims 1 to 5, characterized in that: The left metal connector also includes a U-shaped left metal clasp with an opening facing left and fixed to the right end of the first wall. The first wall includes a first steel frame and a first precast concrete cast and fixed to the periphery of the first steel frame and the left side of the left metal clasp. The left side of the left metal clasp is fixed with connecting ribs extending in the left and right directions and welded to the first steel frame. The left sealing component is arranged on the right side surface of the left metal clasp.

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