Prefabricated parapet wall with vertical joints in sliding rail type connection

Abstract

The utility model provides a vertical seam sliding rail type connection prefabricated parapet wall which comprises a first wall body and a second wall body, a sliding piece is fixed on the end face of one vertical side of the first wall body, a sliding rail is fixed on the end face of one vertical side of the second wall body, and the sliding rail and the sliding piece are in sliding fit in the vertical direction of the wall bodies. A hollow cavity is formed in the sliding rail in the vertical direction of the wall body in a penetrating mode, and mortar is filled and coated in the hollow cavity. The wall bodies are prefabricated, the sliding pieces and the sliding rails are embedded in the connecting ends of the wall bodies, and the two wall bodies are positioned, matched and connected through matching of the sliding pieces and the sliding rails. And meanwhile, the internal cavity of the sliding rail can be used for positioning grouting after wall matching, and the sliding rail after positioning grouting provides space and guidance for subsequent filling of concrete between two parapet walls. The prefabricated parapet wall is adopted, the time and steps needed for parapet wall connection can be effectively simplified, the construction cost is reduced, and batch production can be conducted according to needs.

Description

Technical Field

[0001] This utility model relates to the field of architectural design, particularly the field of prefabricated wall technology, and especially to a prefabricated parapet wall with a vertical joint sliding rail connection. Background Technology

[0002] A parapet wall is a low wall surrounding the roof of a building. Its main functions, besides safety, include waterproofing at the base with brickwork to prevent water seepage or rainwater runoff. According to national building codes, the height of a parapet wall on an accessible roof should generally not be less than 1.1 meters and not more than 1.5 meters. The parapet wall on an accessible roof serves to protect people's safety and also decorates the building facade. On inaccessible roofs, the parapet wall serves both a decorative function and to secure the roofing felt. Currently, most parapet walls are constructed using on-site casting; however, on-site casting involves many steps, a long construction period, high equipment rental costs, and significant challenges in quality control.

[0003] Therefore, a precast wall design can be adopted. Based on the usage requirements of the parapet wall, the precast wall can be further designed to provide prefabrication for the parapet wall, thereby simplifying the on-site pouring process.

[0004] Existing precast walls, typically as shown in the precast basement exterior wall connection structure disclosed in 202510061642.0, involve placing at least two vertical precast wall panels on the upper part of a foundation slab. The precast wall panels are internally designed with horizontally extending reinforcing bars arranged parallel to each other along the wall surface. The portions of these horizontal reinforcing bars extending beyond the sides of the precast wall panels are designed with bent hook ends. In the lateral connection of the two precast wall panels, the walls are connected by cast-in-place pilasters; the concrete used to cast the pilasters encases the precast wall panels through the horizontally extending hook ends. This lateral casting connection requires the cooperation of fixed and movable casting slabs to form a casting chamber. The lateral casting process for connecting the two precast wall panels is relatively complex. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the existing technology, this utility model provides a prefabricated parapet wall with vertical joint sliding rail connection, which can effectively reduce the construction period of the parapet wall, save construction costs, effectively improve construction quality, and improve the stability of construction quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a prefabricated parapet wall with vertical joint sliding rail connection, including a first wall and a second wall. A sliding piece is fixed on one vertical end face of the first wall, and a sliding rail is fixed on one vertical end face of the second wall. The sliding rail and the sliding piece slide in cooperation along the vertical direction of the wall. The sliding rail has a hollow cavity that runs through the interior of the wall along the vertical direction. The hollow cavity is filled with mortar.

[0007] In the above scheme, for the existing parapet walls that are directly cast on site, a prefabricated first wall and a second wall are designed. The two walls are positioned together by sliding fit between a sliding plate and a sliding rail. While positioning, the hollow cavity inside the sliding rail can serve as a mortar filling cavity, providing strength reinforcement at the connection point of the two walls by filling with mortar.

[0008] Furthermore, the outer surface of the slide rail has a through slot along the vertical direction of the wall. The sliding piece slides with the slide rail through the through slot. The width of the through slot is not less than the thickness at the sliding engagement position of the sliding piece. The through slot provides guiding space for the engagement between the sliding piece and the slide rail.

[0009] Furthermore, the sliding plate includes a web and a mating plate. One side of the web is connected and fixed to the first wall, and the other side mates with the through slot of the slide rail and extends into the hollow cavity. The width of the through slot is less than the thickness of the web. The mating plate is fixed on the end face of the web that extends into the hollow cavity. After the slide rail and the sliding plate mate, the hollow cavity is filled with mortar. The internal cavity of the slide rail provides space for the mortar to fill, which not only effectively enhances the reliability of the positioning and fixing of the sliding plate and the slide rail, but also strengthens the reliability of the connection between the first wall and the second wall.

[0010] Furthermore, the radial cross-section of the web plate and the mating plate is T-shaped, while the radial cross-section of the slide rail is U-shaped with an opening on one side. The head of the T-shaped structure is fitted inside the U-shaped structure, and mortar is poured and filled into the U-shaped structure. Through this further structural design of the slide plate, the filling mortar not only strengthens the connection between the two walls, but also uses the mortar to solidify and fix the slide plate and the slide rail, further improving the reliability and stability of the connection.

[0011] Preferably, both the sliding plate and the sliding rail are fixed at the midpoint of the thickness of the corresponding wall, and the thickness of the sliding rail along the wall thickness direction is less than the wall thickness. A filling groove for concrete is formed between the connecting end face of the first wall and the second wall and the side face of the sliding plate and the sliding rail along the thickness direction. Utilizing the thickness difference between the sliding rail / sliding plate and the wall, a filling groove is formed between the connected first and second walls, facilitating the positioning and filling of concrete between the two walls and simplifying the concrete filling operation.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a prefabricated parapet wall with a vertical joint sliding rail connection. The wall body is prefabricated, and sliding plates and rails are pre-embedded at the connection ends. The sliding plates and rails work together to achieve positioning and fitting of the two wall pieces. Simultaneously, the rails facilitate positioning grouting after the wall pieces are fitted together. The grouted rails then provide space and guidance for subsequent concrete filling between the two parapet walls. Using prefabricated parapet walls effectively simplifies the time and steps required for parapet wall connection, reduces construction costs, and allows for mass production on demand. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of the first wall in the preferred embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the second wall in the preferred embodiment of this utility model.

[0016] Figure 3 This is a partial enlarged view of the connection between the first wall and the second wall in the preferred embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure after the connection is completed in the preferred embodiment of this utility model.

[0018] In the diagram: 1. First wall; 2. Second wall; 3. Sliding plate 3-1; 3. Web plate 3-2; 4. Sliding rail; 5. Hollow cavity; 6. Filling groove; 7. Concrete. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0020] like Figures 1 to 4 The prefabricated parapet wall shown is a vertical joint sliding rail 4 type connection, which is the preferred embodiment of this utility model. The prefabricated parapet wall includes a first wall body 1 and a second wall body 2. A sliding piece 3 is fixed on one vertical end face of the first wall body 1, and a sliding rail 4 is fixed on one vertical end face of the second wall body 2. In the connection between the wall body and the sliding piece 3 and the sliding rail 4, the sliding piece 3 and the sliding rail 4 are prefabricated in the first wall body 1 and the second wall body 2 in a pre-embedded form.

[0021] The slide rail 4 and the sliding plate 3 slide together vertically along the wall. The slide rail 4 has a hollow cavity 5 that runs through it vertically along the wall. The hollow cavity 5 is filled with mortar. A filling groove 6 for concrete 7 is formed between the outer surfaces of the first wall 1, the second wall 2, the slide rail 4, and the sliding plate 3.

[0022] Specifically, the radial cross-section of the slide rail 4 is a U-shaped structure with an opening on one side, and the outer surface of the slide rail 4 has a through slot along the vertical direction of the wall. The sliding piece 3 includes a web 3-1 and a mating piece 3-2. The radial cross-sections of the web 3-1 and the mating piece 3-2 are T-shaped, and the head of the T-shaped structure is fitted inside the U-shaped structure. One side of the web 3-1 is connected and fixed to the first wall 1, and the other side slides into the through slot of the slide rail 4 and extends into the hollow cavity 5. The width of the through slot is less than the thickness of the web 3-1. The mating piece 3-2 is fixed to the end face of the web 3-1 that extends into the hollow cavity 5. After the slide rail 4 and the sliding piece 3 are fitted, the hollow cavity 5 is filled with mortar, which serves to position and fix the fit between the slide rail 4 and the sliding piece 3, and also to strengthen the connection between the two walls.

[0023] In the dimensional design and positioning of the wall, sliding plate 3, and slide rail 4, both sliding plate 3 and slide rail 4 are fixed at the midpoint of the corresponding wall thickness. The thickness of slide rail 4 along the wall thickness direction is less than the wall thickness. Utilizing the midpoint positioning and the thickness difference, a filling groove 6 for concrete 7 is formed between the connecting end face of the first wall 1 and the second wall 2 and the side of sliding plate 3 and slide rail 4 along the thickness direction, facilitating the positioning and filling of concrete 7 between the two walls. Compared to the traditional method of connecting precast walls with ordinary bolts, where only bolts and other fasteners are used and there is no concrete 7 filling cavity between the two walls, this embodiment utilizes the wall, sliding plate 3, and slide rail 4 to form a filling groove 6. When filling concrete 7, it can be filled along the filling groove 6 without the need for a separate design and installation of a fixed pouring slab, further improving the convenience of connecting parapet walls.

[0024] Construction process:

[0025] Precast walls are used to prepare a first wall 1 with sliding plates 3 and a second wall 2 with sliding rails 4. The first wall 1 and the second wall 2 are then transported to the installation position. Once one of the first wall 1 or the second wall 2 on either side is confirmed to be in position, the other wall can be hoisted to its location. Then, the sliding plates 3 and sliding rails 4 of the two walls are slidably assembled using vertical hoisting. Afterwards, mortar is filled into the hollow cavity 5 connecting the sliding plates 3 and the sliding rails 4. Once the mortar has fully solidified and reached the required strength, concrete 7 is filled into the filling grooves 6 of the two walls. After the concrete 7 solidifies, the connection and fixation of the two parapet walls is completed.

[0026] This prefabricated parapet wall design, featuring a vertical joint sliding rail 4 connection, utilizes prefabricated wall panels with pre-embedded sliding plates 3 and sliding rails 4 at the joint ends. The sliding plates 3 and sliding rails 4 work together to achieve positioning and alignment of the two wall panels. Simultaneously, the sliding rails 4 facilitate positioning grouting after the wall panels are aligned. After positioning grouting, the sliding rails 4 provide space and guidance for subsequent filling of concrete 7 between the two parapet walls. This prefabricated wall design effectively simplifies the time and steps required for parapet wall connection, significantly improves the reliability and convenience of the connection between the two parapet walls, reduces construction costs, and allows for mass production on demand.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A prefabricated parapet wall with a vertical joint sliding rail connection, characterized in that: It includes a first wall and a second wall. A sliding plate is fixed on one vertical end face of the first wall, and a slide rail is fixed on one vertical end face of the second wall. The slide rail and the sliding plate slide together in the vertical direction of the wall. The slide rail has a hollow cavity that runs through the interior of the wall in the vertical direction. The hollow cavity is filled with mortar.

2. The prefabricated parapet wall with vertical joint sliding rail connection as described in claim 1, characterized in that: The outer surface of the slide rail has a through slot along the vertical direction of the wall. The sliding piece slides with the slide rail through the through slot. The width of the through slot is not less than the thickness of the sliding piece at the sliding engagement position.

3. A prefabricated parapet wall with a vertical joint sliding rail connection as described in claim 2, characterized in that: The sliding plate includes a web and a mating plate. One side of the web is connected and fixed to the first wall, and the other side mates with the through groove of the slide rail and extends into the hollow cavity. The width of the through groove is less than the thickness of the web. The mating plate is fixed on the end face of the web that extends into the hollow cavity. The hollow cavity is filled with mortar after the slide rail and the sliding plate mate.

4. A prefabricated parapet wall with a vertical joint sliding rail connection as described in claim 3, characterized in that: The radial cross-section of the web and the mating plate is T-shaped, while the radial cross-section of the slide rail is a U-shaped structure with an opening on one side. The head of the T-shaped structure is fitted inside the U-shaped structure, and mortar is poured and filled inside the U-shaped structure.

5. A prefabricated parapet wall with a vertical joint sliding rail connection as described in claim 4, characterized in that: The sliding plate and the sliding rail are both fixed at the midpoint of the thickness of the corresponding wall, and the thickness of the sliding rail along the wall thickness direction is less than the wall thickness. The connecting end face of the first wall and the second wall forms a filling groove for concrete filling between the sliding plate and the side of the sliding rail along the thickness direction.

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