PVC through-wall pipeline air seal structure

Abstract

The utility model relates to the technical field of PVC through-wall pipes, in particular to a PVC through-wall pipeline air sealing structure which comprises a base, the base comprises a pipe body, an inflation head and a sealing block, the outer wall, close to the bottom end, of the base is fixedly connected with the inner wall of a lower supporting piece, and by pulling an extension plate, the extension plate starts to slide outwards from the interior of a sliding groove through a gear. The outer wall of the abutting block abuts against the outer wall of the wall, the pipe body is inserted into the wall, the upper supporting plate is pulled, the upper air bag moves to the edge of the hole of the wall, an inflation inlet of an inflation pump is inserted into an inflation head, the inner wall of the pipe body is inflated, and the outer walls of the upper air bag and the lower air bag gradually abut against the inner wall of the hole of the wall during inflation. Meanwhile, the outer wall of the upper air bag and the outer wall of the lower air bag are separated from the inner wall of the lower lap joint block and the inner wall of the upper lap joint block respectively, the sealing block is installed in the inflation pipeline after sealing is completed, the upper supporting plate and the lower supporting plate are separated from the outer wall of the pipe body, and therefore the installation work of the PVC through-wall pipe is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC wall-penetrating pipes, in particular to a PVC wall-penetrating pipeline air sealing structure. Background Art

[0002] PVC wall-penetrating pipe is mainly used between the inner and outer wall formworks to bear the lateral pressure and other loads of concrete, ensuring that the spacing between the inner and outer formworks meets the design requirements. At the same time, it also serves as a fulcrum for the formwork and its supporting structure, playing a role in fixing the formwork and controlling the thickness of concrete pouring.

[0003] At present, most of the PVC wall-penetrating pipe air-sealing structures on the market are sealed by filling the pipe with foam glue. However, the foam glue will push the pipe to move in the hole during filling, thus causing inconvenience to subsequent construction work. Utility Model Content

[0004] The purpose of the utility model is to provide a PVC through-wall pipe air sealing structure to solve the problem in the background art that the foam glue will push the pipe to move in the hole when filling. To achieve the above purpose, the utility model provides the following technical solutions: a PVC through-wall pipe air sealing structure, including a base, the base includes a pipe body, an inflation head and a sealing block, the outer wall of the base near the bottom end is fixedly connected to the inner wall of the lower support, and the inner wall of the lower support is slidably connected to the inner wall of the extension.

[0005] The inner wall of the lower support member is movably abutted against the outer wall of the sealing member, and the sealing member is composed of a lower airbag, a connecting tube and an upper airbag. The outer wall of the sealing member near the top is movably abutted against the inner wall of the upper support member, and the inner wall of the upper support member is slidably connected to the outer wall of the base.

[0006] Preferably, an inflation pipe is provided on the inner wall of the tube body, and the inner wall of the inflation pipe near the top is fixedly connected to the outer wall of the inflation head, and the inner wall of the inflation pipe near the top is threadedly connected to the outer wall of the sealing block near the bottom.

[0007] Preferably, the lower support member is composed of a lower support plate, a lower overlapping block and a sliding groove, the inner wall of the lower support plate is snap-connected with the outer wall of the tube body near the bottom end, and the top of the lower support plate near the inner edge is fixedly connected with the bottom of the lower overlapping block, and the inner wall of the lower support plate is provided with a sliding groove.

[0008] Preferably, the extension member includes an extension plate, a contact block, a connecting rack and a gear. The outer wall of the extension plate is slidably inserted into the inner wall of the sliding groove, and the bottom of the contact block on the top of the extension plate is fixedly connected. The bottom of the extension plate is fixedly connected to one side of the connecting rack through an extension rod, and the outer wall of the other side of the connecting rack is meshed with the outer wall of the gear. The inner wall of the gear is fixedly connected to the bottom of the lower support plate through a gear rod.

[0009] Preferably, the outer wall of the lower airbag is movably in contact with the inner wall of the lower lapping block, and the air inlet of the lower airbag is fixedly connected to one end of the inflation pipeline away from the inflation head. The inner wall of the top of the lower airbag is fixedly connected to one end of the connecting pipe, and the lower airbag is fixedly connected to the inner wall of the bottom of the upper airbag through the connecting pipe, and the inner wall of the upper airbag is slidably connected to the inner wall of the pipe body.

[0010] Preferably, the upper support member includes an upper support plate and an upper lapping block. The inner wall of the upper support plate is slidably sleeved on the outer wall of the pipe body, and the bottom of the upper support plate is fixedly connected to the top of the upper lapping block. The inner wall of the upper lapping block is movably in contact with the outer wall of the upper airbag.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the pipe body is inserted into the wall body, and the upper support plate is pulled to move the upper airbag to the edge of the wall hole. The inflation port of the air pump is inserted into the inflation head and the inner wall of the pipe body is inflated. When inflating, the outer walls of the upper airbag and the lower airbag gradually contact the inner wall of the wall hole. At the same time, the outer walls of the upper airbag and the lower airbag are separated from the inner walls of the lower lapping block and the upper lapping block respectively. After sealing, the sealing block is installed into the inflation pipeline, and the upper support plate and the lower support plate are separated from the outer wall of the pipe body, thereby completing the installation work of the PVC through-wall pipe.

[0013] In the present utility model, by pulling the extension plate, the extension plate starts to slide outwards from the sliding groove through the gear, so that the outer wall of the contact block contacts the outer wall of the wall body, enabling the device to be used for walls with different apertures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a sectional view of the present utility model;

[0016] Figure 3 is an exploded view of the present utility model.

[0017] In the figure: 1. Base; 101. Pipe body; 102. Inflatable head; 103. Sealing block; 2. Lower support member; 201. Lower support plate; 202. Lower overlapping block; 203. Sliding groove; 3. Extension member; 301. Extension plate; 302. Abutting block; 303. Connecting rack; 304. Gear; 4. Sealing member; 401. Lower airbag; 402. Connecting pipe; 403. Upper airbag; 5. Upper support member; 501. Upper support plate; 502. Upper overlapping block. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 3 , the present invention provides a technical solution: a PVC wall-piercing pipeline air sealing structure, including a base 1, the base 1 includes a pipe body 101, an inflatable head 102 and a sealing block 103. The outer wall of the base 1 near the bottom end is fixedly connected to the inner wall of the lower support member 2, and the inner wall of the lower support member 2 is slidably connected to the inner wall of the extension member 3.

[0020] The inner wall of the lower support member 2 is in movable abutment with the outer wall of the sealing member 4. The sealing member 4 is composed of a lower airbag 401, a connecting pipe 402 and an upper airbag 403. The outer wall of the sealing member 4 near the top is in movable abutment with the inner wall of the upper support member 5, and the inner wall of the upper support member 5 is slidably connected to the outer wall of the base 1.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, an inflatable pipeline is provided in the inner wall of the pipe body 101, and the inner wall of the inflatable pipeline near the top end is fixedly connected to the outer wall of the inflatable head 102. The inner wall of the inflatable pipeline near the top end is threadedly connected to the outer wall of the sealing block 103 near the bottom.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the lower support member 2 is composed of a lower support plate 201, a lower overlapping block 202 and a sliding groove 203. The inner wall of the lower support plate 201 is snap-fitted to the outer wall of the pipe body 101 near the bottom end, and the top of the lower support plate 201 near the inner edge is fixedly connected to the bottom of the lower overlapping block 202. A sliding groove 203 is provided in the inner wall of the lower support plate 201.

[0023] In this embodiment, as Figure 1 ,Figure 2 and Figure 3 As shown in Figure 3 , the extension member 3 includes an extension plate 301, an abutting block 302, a connecting rack 303 and a gear 304. The outer wall of the extension plate 301 is slidably inserted into the inner wall of the sliding groove 203, and the bottom of the abutting block 302 at the top of the extension plate 301 is fixedly connected. The bottom of the extension plate 301 is fixedly connected to one side of the connecting rack 303 through an extension rod, and the outer wall of the other side of the connecting rack 303 is meshed with the outer wall of the gear 304. The inner wall of the gear 304 is fixedly connected to the bottom of the lower support plate 201 through a gear rod.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown in Figure 1 , Figure 2 and Figure 3 , the outer wall of the lower airbag 401 is movably abutted against the inner wall of the lower lapping block 202, and the air inlet of the lower airbag 401 is fixedly connected to one end of the inflation pipeline away from the inflation head 102. The inner wall of the top of the lower airbag 401 is fixedly connected to one end of the connecting pipe 402, and the lower airbag 401 is fixedly connected to the inner wall of the bottom of the upper airbag 403 through the connecting pipe 402, and the inner wall of the upper airbag 403 is slidably connected to the inner wall of the pipe body 101.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown in Figure 1 , Figure 2 and Figure 3 , the upper support member 5 includes an upper support plate 501 and an upper lapping block 502. The inner wall of the upper support plate 501 is slidably sleeved on the outer wall of the pipe body 101, and the bottom of the upper support plate 501 is fixedly connected to the top of the upper lapping block 502. The inner wall of the upper lapping block 502 is movably abutted against the outer wall of the upper airbag 403.

[0026] The usage method and advantages of the present utility model: When the PVC wall-piercing pipe air seal structure is working, the working process is as follows:

[0027] As Figure 1 , Figure 2 and Figure 3 As shown in Figure 1 , Figure 2 and Figure 3 , by pulling the extension plate 301, the extension plate 301 starts to slide outwards from the sliding groove 203 through the gear 304, so that the outer wall of the abutting block 302 abuts against the outer wall of the wall. Insert the pipe body 101 into the wall, and pull the upper support plate 501 to move the upper airbag 403 to the edge of the wall hole. Insert the inflation port of the air pump onto the inflation head 102 and inflate the inner wall of the pipe body 101. When inflating, the outer walls of the upper airbag 403 and the lower airbag 401 gradually abut against the inner wall of the wall hole. At the same time, the outer walls of the upper airbag 403 and the lower airbag 401 are respectively disengaged from the inner walls of the lower lapping block 202 and the upper lapping block 502. After completing the sealing, install the sealing block 103 into the inflation pipeline, and disengage the upper support plate 501 and the lower support plate 201 from the outer wall of the pipe body 101, thereby completing the installation work of the PVC wall-piercing pipe.

[0028] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC pipeline air sealing structure passing through a wall, comprising a base (1), characterized in that: The base (1) includes a tube body (101), an inflation head (102) and a sealing block (103). The outer wall of the base (1) near the bottom end is fixedly connected to the inner wall of the lower support member (2), and the inner wall of the lower support member (2) is slidably connected to the inner wall of the extension member (3); The inner wall of the lower support member (2) is movably abutted against the outer wall of the seal member (4). The seal member (4) is composed of a lower airbag (401), a connecting pipe (402) and an upper airbag (403). The outer wall of the seal member (4) near the top is movably abutted against the inner wall of the upper support member (5), and the inner wall of the upper support member (5) is slidably connected to the outer wall of the base (1).

2. The air seal structure of a PVC wall-piercing pipe according to claim 1, wherein: An inflation pipeline is provided in the inner wall of the tube body (101), and the inner wall of the inflation pipeline near the top end is fixedly connected to the outer wall of the inflation head (102). The inner wall of the inflation pipeline near the top end is threadedly connected to the outer wall of the sealing block (103) near the bottom end.

3. The airtight structure of a PVC pipe passing through a wall according to claim 2, characterized in that: The lower support member (2) is composed of a lower support plate (201), a lower overlapping block (202) and a sliding groove (203). The inner wall of the lower support plate (201) is snap-fitted to the outer wall of the tube body (101) near the bottom end, and the top of the lower support plate (201) near the inner edge is fixedly connected to the bottom of the lower overlapping block (202). A sliding groove (203) is provided in the inner wall of the lower support plate (201).

4. The airtight structure of a PVC pipe passing through a wall according to claim 3, characterized in that: The extension member (3) includes an extension plate (301), an abutting block (302), a connecting rack (303) and a gear (304). The outer wall of the extension plate (301) is slidably inserted into the inner wall of the sliding groove (203), and the bottom of the abutting block (302) at the top of the extension plate (301) is fixedly connected. The bottom of the extension plate (301) is fixedly connected to one side of the connecting rack (303) through an extension rod, and the outer wall of the other side of the connecting rack (303) is meshed with the outer wall of the gear (304). The inner wall of the gear (304) is fixedly connected to the bottom of the lower support plate (201) through a gear rod.

5. The air seal structure of a PVC wall-piercing pipeline according to claim 3, characterized in that: The outer wall of the lower airbag (401) is movably abutted against the inner wall of the lower overlapping block (202), and the air inlet of the lower airbag (401) is fixedly connected to one end of the inflation pipeline away from the inflation head (102). The inner wall of the top of the lower airbag (401) is fixedly connected to one end of the connecting pipe (402), and the lower airbag (401) is fixedly connected to the inner wall of the bottom of the upper airbag (403) through the connecting pipe (402), and the inner wall of the upper airbag (403) is slidably connected to the inner wall of the tube body (101).

6. The air seal structure of a PVC through-wall pipe according to claim 5, characterized in that: The upper support member (5) includes an upper support plate (501) and an upper overlapping block (502). The inner wall of the upper support plate (501) is slidably sleeved on the outer wall of the tube body (101), and the bottom of the upper support plate (501) is fixedly connected to the top of the upper overlapping block (502). The inner wall of the upper overlapping block (502) is movably abutted against the outer wall of the upper airbag (403).

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