Height-adjustable PVC drainage connecting pipe fitting

Abstract

The utility model provides a height-adjustable PVC (polyvinyl chloride) drainage connecting pipe fitting, and belongs to the technical field of building drainage. The problem of how to ensure the installation quality while ensuring the construction progress is solved. The PVC drainage connecting pipe fitting with the adjustable height comprises a long-strip-shaped pipe body, a plurality of annular grooves are formed in the outer wall of the pipe body in the circumferential direction, the annular grooves are formed in the length direction of the pipe body at intervals, and a separation part is formed in the position, between every two adjacent annular grooves, of the outer wall of the pipe body; the PVC drainage connecting pipe fitting with the adjustable height further comprises a plurality of scale marks arranged at intervals in the length direction of the pipe body, and the scale marks are arranged on the outer walls of part of the separation parts. According to the height-adjustable PVC drainage connecting pipe fitting, the installation quality can be ensured while the construction progress is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of building drainage, and relates to a PVC drainage connecting pipe fitting with adjustable height. Background Art

[0002] The drainage pipe system is an indispensable part of the current building field. During laying, construction workers often reserve branch pipes in different rooms according to needs to facilitate the installation and use of later floor drains, toilets, washing machines and other furniture.

[0003] However, in the actual construction process, the actual length reserved for these branch pipes cannot be accurately controlled. During the later process of laying tiles, the length of the branch pipes is often too long or too short. For the situation where the length of the reserved branch pipe is too long, generally, after the ground leveling is completed, the excess part can be cut off using tools. For the situation where the length of the reserved branch pipe is too short, generally, after the ground leveling is completed, a drain pipe connector with an appropriate length is cut out according to needs and connected to the reserved branch pipe.

[0004] However, for the situation where the length of the reserved branch pipe is too short, the above solution is not applicable in the actual operation process. The reason is that when the separately prepared drain pipe connector is cut, due to the material of the pipe fitting and the non-standard operation of the construction workers, its cut surface cannot be guaranteed to be flat, and often appears in a bevel shape. The drain pipe connector, whether it is connected to the reserved branch pipe or the furniture drain pipe (especially the floor drain or toilet) installed later, is pre-positioned by means of socket connection, and then fixed by an elastic sealing ring or adhesive. There are certain requirements for the socket connection between the drain pipe connector and the furniture drain pipe and the reserved branch pipe. Since the cut surface of the drain pipe connector is beveled, the contact during socket positioning is not sufficient, which in turn affects the subsequent fixation to a certain extent, resulting in unreliable sealing and extremely likely to cause water leakage later. And before cutting, the construction workers also need to carefully measure with a tape measure and then mark the cutting mark on the outer wall of the pipe fitting with a marker pen, which greatly affects the construction progress. Summary of the Invention

[0005] The purpose of the utility model is to propose a PVC drainage connecting pipe fitting with adjustable height for the existing technologies with the above problems. The technical problem to be solved by the utility model is: how to ensure the installation quality while guaranteeing the construction progress.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a PVC drainage connecting pipe fitting with adjustable height, comprising a long strip-shaped pipe body, characterized in that a plurality of annular grooves are opened on the outer wall of the pipe body along the circumferential direction, and the plurality of annular grooves are arranged at intervals along the length direction of the pipe body, and a partition is formed on the outer wall of the pipe body between every two adjacent annular grooves. The PVC drainage connecting pipe fitting with adjustable height also includes a plurality of scale marks arranged at intervals along the length direction of the pipe body, and the plurality of scale marks are arranged on the outer wall of part of the partition.

[0007] The height-adjustable PVC drainage connecting pipe fittings include a long strip-shaped pipe body. As described above, during the construction process, if the length of the reserved branch pipe is not enough, the construction personnel need to cut pipe fittings of corresponding size as drainage pipe connecting fittings. After the drainage pipe connecting fittings are pre-fixed with the reserved branch pipe and the furniture drainage pipe in a socket-and-socket manner, they are fixed by an elastic sealing ring or an adhesive. On this premise, compared with the prior art, the difference of the present application is that: by opening a plurality of annular grooves along the circumferential direction on the outer body of the pipe body, and arranging the annular grooves at intervals along the length direction of the pipe body, a partition portion arranged along the circumferential direction of the pipe body can be formed between every two annular grooves. When performing cutting processing, the construction personnel can place the tool head in the annular groove and cut the pipe fittings. Under the guiding action of the annular groove wall, the cutting trajectory of the tool can be effectively prevented from being deflected, so that the port surface of the drain pipe connector (i.e., the pipe body) obtained by cutting is flat, thereby ensuring that when the drain pipe connector is pre-fixed with the reserved branch pipe or the furniture drain pipe by socket and splice, the two can be in full contact and the force is uniform, effectively avoiding the subsequent firmness being affected during the secondary fixation by fasteners or glue, thereby ensuring the installation quality. In addition, the present application provides a number of scale marks, so that before the cutting step is implemented, the tool head can be directly placed in any annular groove through the auxiliary prompts of the scale marks according to the actual requirements of the pipe body length, without the need to carefully measure with a tape measure and draw marks with a marker, thereby effectively ensuring the construction progress.

[0008] In the above-mentioned height-adjustable PVC drainage connection pipe fitting, the cross-sectional profile of each of the partitions cut along the length direction of the pipe body is arc-shaped. Through this arrangement, when the construction personnel use the tool to perform cutting work, the outer wall of the partition can provide a good guiding effect for the cutter head of the tool, so that the cutter head of the tool exerts a force on the groove wall of the annular groove under the guiding effect, preventing the tool from exerting force on the partition to cause the cutting path of the tool to be deflected, and avoiding the situation where the end face formed by cutting the end of the pipe body is tilted.

[0009] In the above-mentioned height-adjustable PVC drainage connection pipe, the cross-sectional profile of each annular groove cut along the length direction of the pipe body is arc-shaped. Through this arrangement, the cutter head of the tool can apply force at the center of the annular groove under the guidance of the annular groove wall, effectively avoiding the situation of cutting with an inclined surface, and at the same time ensuring the accuracy of cutting and avoiding slight deviation in size.

[0010] In the above-mentioned height-adjustable PVC drainage connection pipe fitting, one end of the pipe body is a socket end 1, and the other end is a socket end 2. The outer peripheral surface of the socket end 1 of the pipe body is a pre-joint surface, and the cross-sectional profile of the pre-joint surface cut along the length direction of the pipe body is in a straight line shape. The existence of the pre-joint surface ensures that the pipe body is in more complete contact with the reserved branch pipe when connected, thereby ensuring that the pre-fixation of the two is stable during assembly, and ensuring that the subsequent connection and fixation is more secure.

[0011] In the above-mentioned height-adjustable PVC drainage connection pipe fitting, an outer edge of the socket end is provided with an inclined guide surface along the circumferential direction. During subsequent installation, the guide surface can guide the installation of the pipe body, ensuring the convenience of assembling the pipe body and the reserved branch pipe.

[0012] In the above-mentioned height-adjustable PVC drainage connection pipe fitting, the second socket end of the pipe body is closed. For facilities such as toilets and floor drains, before construction (i.e. before cutting the pipe body), the construction personnel can connect the pipe body to the outside of the reserved branch pipe through the socket end, and cover the port of the reserved branch pipe through the closed socket end of the pipe body to prevent odor and overflow.

[0013] Compared with the prior art, the height-adjustable PVC drainage connection pipe has the following advantages:

[0014] 1. By opening a plurality of annular grooves along the circumferential direction on the outer wall of the pipe body, and arranging the annular grooves at intervals along the length direction of the pipe body, a partition arranged along the circumferential direction of the pipe body is formed between every two adjacent annular grooves. When performing cutting operations, construction workers can place the tool head in the annular groove between two adjacent partitions and apply force on the groove wall, so that the end face of the pipe body formed by cutting is flat.

[0015] 2. Through the setting of several scale marks, construction workers can quickly determine the length to be cut without the need for measuring with tools, thus ensuring construction efficiency.

[0016] 3. The cross-sectional profiles of each partition and each annular groove cut along the length direction of the tube body are all arc-shaped, ensuring that the tool head can be effectively guided during the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present adjustable-height PVC drainage connection fitting.

[0018] Figure 2 is Figure 1 a partial enlarged view of the position A in

[0019] Figure 3 a sectional view of the present adjustable-height PVC drainage connection fitting cut along the length direction.

[0020] Figure 4 is Figure 3 a partial enlarged view of the position B in

[0021] In the figure, 1 is the pipe body; 11 is the annular groove; 12 is the partition part; 13 is the scale mark; 14 is the first socket end; 141 is the pre-connection surface; 142 is the guiding surface; 15 is the second socket end. Specific embodiments

[0022] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0023] As Figures 1-4 shown, the present adjustable-height PVC drainage connection fitting includes a strip-shaped pipe body 1. In this embodiment, the length of the pipe body 1 is 8 cm to 20 cm, but the actual length can be produced according to actual requirements. One end of the pipe body 1 is the first socket end 14, and the other end is the second socket end 15. The outer circumferential wall of the pipe body 1 at the end of the first socket end 14 is the pre-connection surface 141. Specifically, the cross-sectional contour of the pre-connection surface 141 cut along the length direction of the pipe body 1 is linear, and there is a guiding surface 142 in the shape of an inclined surface at the outer edge of the port of the first socket end 14. A plurality of annular grooves 11 are circumferentially formed on the outer wall of the pipe body 1. The plurality of annular grooves 11 are arranged at intervals along the length direction of the pipe body 1. One of the annular grooves 11 at both ends is arranged close to the second socket end 15 of the pipe body 1, and the other is arranged close to the pre-connection surface 141. And a partition part 12 arranged along the circumferential direction of the pipe body 1 can be formed between every two adjacent annular grooves 11 on the outer wall of the pipe body 1. As Figure 4 shown, the cross-sectional contours of the partition parts 12 and the annular grooves 11 cut along the length direction of the pipe body 1 are arc-shaped. It is worth mentioning that in this embodiment, the width of each annular groove 11 is between 0.5 cm and 1 cm, and the width of each partition part 12 is between 1 cm and 2 cm, but the actual dimensions can be adjusted during production according to actual requirements.

[0024] In addition, as Figure 1As shown in the figure, the adjustable-height PVC drainage connection fitting further includes a plurality of scale marks 13 arranged at intervals along the length direction of the pipe body 1, and the plurality of scale marks 13 are integrally injection-molded with the outer wall of a part of the partition 12 during the production and manufacturing of the pipe body 1.

[0025] In addition, when injection-molding, the socket end two 15 of the pipe body 1 can be made into a sealed shape, so that before construction for facilities such as toilets and floor drains, the construction personnel can directly sleeved the pipe body 1 outside the reserved branch pipe through the socket end one 14 to play a role in preventing odor and anti-backflow.

[0026] Assembly principle: Before assembly, the construction personnel judge the size to be cut for the pipe body 1 according to the actual situation of the reserved branch pipe, and quickly determine the position to be cut (i.e., the position of the corresponding annular groove 11) according to the scale marks 13 outside the pipe body 1. Then, place the cutting head of the tool in the annular groove 11. Under the guiding action of two adjacent partitions 12, the cutting head of the tool applies a force at the center of the inner wall of the annular groove 11, so that the end face obtained by cutting the socket end two 15 of the pipe body 1 is flat. Only need to apply adhesive along the circumference on the outer wall or inner wall at both ends of the pipe body 1, and then insert and connect one end of the pipe body 1 with the reserved branch pipe and the other end with the furniture drainage pipe, and finally make the adhesive solidify. In addition, a sealing ring made of elastic material can also be fixedly used on the inner wall or outer wall at both ends of the pipe body 1. When the two ends of the pipe body 1 are inserted and connected for pre-fixing, the elastic deformation of the sealing ring ensures the stability of the inserted connection and seals the gap at the same time. It is worth mentioning that the two ends of the pipe body 1 can also be used as sockets.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0028] Although terms such as pipe body 1, annular groove 11, partition 12, scale mark 13, socket end one 14, pre-connection surface 141, guiding surface 142, socket end two 15, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A height-adjustable PVC drainage connection pipe, comprising a long strip-shaped pipe body (1), characterized in that: A plurality of annular grooves (11) are provided on the outer wall of the tube body (1) along the circumferential direction, and the plurality of annular grooves (11) are arranged at intervals along the length direction of the tube body (1). A partition (12) is formed between every two adjacent annular grooves (11) on the outer wall of the tube body (1). The height-adjustable PVC drainage connection pipe fitting further comprises a plurality of scale marks (13) arranged at intervals along the length direction of the tube body (1), and the plurality of scale marks (13) are arranged on the outer wall of a portion of the partition (12).

2. The height-adjustable PVC drainage connection pipe fitting according to claim 1, characterized in that: The cross-sectional profile of each of the partitions (12) cut along the length direction of the tube body (1) is arc-shaped.

3. The height-adjustable PVC drainage connection pipe fitting according to claim 1 or 2, characterized in that: The cross-sectional profile of each annular groove (11) cut along the length direction of the tube body (1) is arc-shaped.

4. The height-adjustable PVC drainage connection pipe fitting according to claim 1 or 2, characterized in that: One end of the tube body (1) is a first bell end (14), and the other end is a second bell end (15). The outer peripheral surface of the first bell end (14) of the tube body (1) is a pre-joining surface (141). The cross-sectional profile of the pre-joining surface (141) cut along the length direction of the tube body (1) is in a straight line shape.

5. The height-adjustable PVC drainage connection pipe fitting according to claim 4, characterized in that: An outer edge of the socket end (14) is provided with an inclined guide surface (142) along the circumferential direction.

6. The height-adjustable PVC drainage connection pipe fitting according to claim 5, characterized in that: The second socket end (15) of the pipe body (1) is closed.

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