Bracket for draining pipes in a suspended ceiling

Abstract

The utility model relates to ceiling inner drainage pipe technical field, and disclose the bracket of ceiling inner drainage pipeline, including the bottom support of top surface recess for receiving drainage pipe, the both sides swing joint connecting rod of bottom support top surface, the top both sides of connecting rod rotatory connection extension link, two extension links extend upwards and the inboard rotatory connection mounting sleeve of both, the inboard top fixed mounting washer of mounting sleeve, the central part of washer is penetrated by expansion bolt bottom, the top of expansion bolt is located above mounting sleeve, and the bottom is located inboard in mounting sleeve. The utility model forms fixed connection by the expansion bolt through washer whole into wall, to fix mounting sleeve also in wall, when mounting sleeve is perpendicular to wall, by the integration of mounting sleeve and connecting rod, make mounting sleeve complete two link installation after fixing, reach the beneficial effect that the structure of simplified drainage pipe hanger reaches the efficient convenient of drainage pipe hanger installation.

Description

Technical Field

[0001] This utility model relates to the field of ceiling drainage pipe technology, specifically to a bracket for ceiling drainage pipes. Background Technology

[0002] Ceiling-mounted drainage pipes refer to horizontal branch pipes, partial sections of vertical pipes, condensate pipes, wastewater pipes, etc., installed inside the ceiling space of a building. They are usually invisible and not directly exposed to the interior space, but they serve a drainage function. Located inside the ceiling, they do not affect the aesthetics of the interior decoration and belong to the "invisible drainage system." Ceiling-mounted drainage pipes are most commonly used in air conditioning rooms and equipment rooms, connecting the wastewater horizontal pipes of equipment such as air conditioning units and air handling equipment. Although the wastewater generated by air conditioning equipment is clean or slightly polluted, it cannot be discharged arbitrarily and needs to be connected to the building's drainage system through drainage horizontal pipes. The equipment wastewater horizontal pipes are often located in the basement for easy connection to the drainage system, facilitating unified management and centralized discharge. Because the drainage pipes are installed horizontally and located inside the basement ceiling, they require hangers for fixation. Currently, the hangers for ceiling-mounted drainage pipes use a base support combined with channel steel, with expansion bolts fixed to the top of the channel steel to the wall top to form a suspension for the drainage pipe, as shown in existing technology CN 216041538 U. Paragraph 0030 of the specification discloses that "the drainage pipe is installed on the beam by a U-shaped pipe hanger, a support screw and a channel steel. In this embodiment, in addition to this, a stiffening device can also be provided to improve the installation stability." Although existing technology uses a three-section hanger consisting of a base support, channel steel, and expansion bolts to confine the drain pipe within the base support, both the steel cable and the channel steel require the expansion bolts to be connected first, and then the bottom of the channel steel to be separately connected to the base support. However, in actual installation, bolts need to be driven first, then the channel steel needs to be connected, and finally the bottom of the channel steel needs to be connected to the base support. Furthermore, the levelness of the base support must be ensured during the connection process to prevent a height difference with the channel steel on the other side. The entire hanger installation process is cumbersome. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a bracket for drainage pipes within suspended ceilings, which simplifies the structure of the drainage pipe hanger, thereby achieving efficient and convenient installation of the drainage pipe hanger and solving the aforementioned technical problems.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a bracket for a drainage pipe inside a suspended ceiling, including a bottom support with a recessed top surface for receiving the drainage pipe, connecting rods movably connected to both sides of the top surface of the bottom support, extension rods rotatably connected to the top sides of the connecting rods, two extension rods extending upward and rotatably connected to an installation sleeve on their inner sides, a gasket fixedly installed on the top of the inner side of the installation sleeve, the center of the gasket being penetrated by the bottom of an expansion bolt, the top of the expansion bolt being above the installation sleeve and the bottom being inside the installation sleeve; The bottom of the connecting rod is also equipped with a quick-connect structure for connecting to the base; The quick-connect structure includes a screw that is rotatably connected to the bottom of the connecting rod or the top surface of the base; It also includes a limiting block, which is installed on the top surface of the base or the bottom of the connecting rod. The limiting block limits the distance between the base and the connecting rod when the screw rotates and drives them to approach each other.

[0005] As a preferred technical solution of this utility model, the tops of the two extension rods extend toward the mounting sleeve while also separating toward both sides of the mounting sleeve, and the two extension rods form a "Y" shape.

[0006] As a preferred technical solution of this utility model, the bottom of the outer surface of the mounting sleeve is riveted to the top of the extension rods on both sides, forming a rotatable connection. The mounting sleeve is a hollow cylindrical body, including rectangular or circular shapes. The connection between the mounting sleeve and the extension rods is located at two-thirds to three-quarters of the way down the outer surface of the sleeve.

[0007] As a preferred technical solution of this utility model, in the quick-connect structure, the screw is rotatably connected to the top surface of the base, and the bottom of the screw is fixedly connected to a limiting block above the top surface of the base. The limiting block is a hollow ring and forms a fixed connection with the bottom of the screw. The bottom surface of the screw is also connected to a bottom rod that penetrates the base. The top of the bottom rod is fixedly connected to the bottom surface of the screw, and a cross opening is opened on its bottom surface for connecting the drill bit of the electric drill.

[0008] As a preferred technical solution of this utility model, the quick-connect structure also includes an upper screw hole, which is opened at the center of the bottom surface of the connecting rod. The upper screw hole is threadedly connected to the screw rod. After the screw rod rotates, it moves relative to the connecting rod with the upper screw hole so that the bottom of the connecting rod contacts the top surface of the limiting block.

[0009] As a preferred technical solution of this utility model, in the quick-connect structure, the top of the screw penetrates the top surface of the connecting rod and forms a rotatable connection with the top surface of the connecting rod. The bottom surfaces of the connecting rod are also fixedly installed with a follower rod parallel to the screw. The follower rod is fixedly installed with a limiting block at the middle of its outer surface. The quick-connect structure also includes a lower screw hole opened on the top surface of the base. The lower screw hole fits into the bottom of the screw and the two form a threaded connection. The lower screw hole is also opened on both sides of the bottom surface of the base with a limiting hole that penetrates itself. The limiting hole fits into the follower rod and the two are slidably connected, but the inner diameter of the limiting hole is smaller than that of the limiting block.

[0010] Compared with the prior art, this utility model provides a bracket for drainage pipes inside the ceiling, which has the following advantages: This invention involves holding the connecting rod and flipping it upwards, causing the top of the connecting rod to rotate relative to the bottom of the mounting sleeve. The connecting rod then changes from being perpendicular to the mounting sleeve to being relatively perpendicular. The output end of the electric hammer is then connected to the bottom of the expansion bolt, which is then driven into the wall above the ceiling. The expansion bolt passes through the washer and enters the wall to form a fixed connection, thus fixing the mounting sleeve to the wall as well. At this point, the mounting sleeve is perpendicular to the wall. The connecting rod is then lowered to connect to the base support. By integrating the mounting sleeve and connecting rod, the installation of the two stages is completed directly after the mounting sleeve is fixed. The bottoms of multiple connecting rods are then connected to the base support to complete the entire bracket installation process. This simplifies the structure of the drain pipe hanger, achieving efficient and convenient installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a front sectional view of the connecting rod structure according to Embodiment 1 of this utility model; Figure 3 This is a front sectional view of the mounting sleeve structure according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 5 This is a front sectional view of the base structure of Embodiment 2 of this utility model; Figure 6 This is a front sectional view of the connecting rod structure in Embodiment 2 of this utility model.

[0012] The components are: 1. base support; 2. connecting rod; 201. extension rod; 3. mounting sleeve; 301. gasket; 302. expansion bolt; 4. screw rod; 401. bottom rod; 5. limiting block; 6. upper screw hole; 7. follower rod; 8. lower screw hole; 9. limiting hole. Detailed Implementation

[0013] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0014] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Please see Figure 1-6 The bracket for the drainage pipe in the ceiling includes a base 1 with a recessed top surface for receiving the drainage pipe, connecting rods 2 movably connected to both sides of the top surface of the base 1, extension rods 201 rotatably connected to the top sides of the connecting rods 2, two extension rods 201 extending upward and rotatably connected to the inner sides of the two extension rods 3, a gasket 301 fixedly installed on the top of the inner side of the mounting sleeve 3, the center of the gasket 301 being penetrated by the bottom of the expansion bolt 302, the top of the expansion bolt 302 being above the mounting sleeve 3 and the bottom being inside the mounting sleeve 3; The bottom of the connecting rod 2 is also provided with a quick-connect structure for connecting to the base support 1; The quick-connect structure includes a screw 4 that is rotatably connected to the bottom of the connecting rod 2 or the top surface of the base 1; It also includes a limiting block 5, which is installed on the top surface of the base 1 or the bottom of the connecting rod 2. The limiting block 5 limits the distance between the base 1 and the connecting rod 2 when the screw 4 rotates and drives them to get closer.

[0017] Furthermore, the tops of the two extension rods 201 extend toward the mounting sleeve 3 while also separating toward both sides of the mounting sleeve 3, forming a "Y" shape.

[0018] As per the instruction manual Figure 3 As shown, each extension rod 201 extends upwards while simultaneously separating to both sides, thus expanding the relative distance between their respective tops to accommodate the mounting sleeve 3, as indicated in the instruction manual. Figure 3 It can be seen that the central axis of the mounting sleeve 3 overlaps with the central axis of the extension rod 201.

[0019] Furthermore, the bottom of the outer surface of the mounting sleeve 3 is riveted to the top of the extension rods 201 on both sides, forming a rotatable connection. The mounting sleeve 3 is a hollow cylinder, including rectangular or circular shapes. The connection between the mounting sleeve 3 and the extension rods 201 is located at two-thirds to three-quarters of the way down its outer surface.

[0020] Since the bottom of the outer surface of the mounting sleeve 3 is riveted to the top of the extension rods 201 on both sides, forming a rotatable connection, during installation, first hold the connecting rod 2 and flip it upwards. The top of the connecting rod 2 and the bottom of the mounting sleeve 3 will then rotatably connect. At this time, the rivets act as bearings. Then, the connecting rod 2 changes from being on the same vertical line as the mounting sleeve 3 to being relatively perpendicular, as shown in the attached instruction manual. Figure 3 As shown, the expansion bolt 302 can be positioned at this time. The output end of the electric hammer is connected to the bottom of the expansion bolt 302, and then the expansion bolt 302 is driven into the wall on the ceiling. At this time, the expansion bolt 302 passes through the washer 301 and enters the wall to form a fixed connection, thereby fixing the mounting sleeve 3 to the wall as well. At this time, the mounting sleeve 3 is perpendicular to the wall. Then, the connecting rod 2 is lowered to connect to the base support 1. By integrating the mounting sleeve 3 and the connecting rod 2, the installation of the two parts is completed directly after the mounting sleeve 3 is fixed. Then, the bottom of the multiple connecting rods 2 is connected to the base support 1 to complete the installation steps of the entire bracket.

[0021] Furthermore, the extension rod 201 can also be replaced by a stainless steel chain. In this way, the extension rod 201 can open the space on the bottom surface of the mounting sleeve 3 without rivets. The use of a chain to replace the extension rod 201 is only a simple description and is an extension based on the technical solution of this application. However, its technical principle is simple and is not intended to be protected. It is not described in the accompanying drawings of the specification and is only briefly described again.

[0022] Example 1 Furthermore, in the quick-connect structure, the screw 4 is rotatably connected to the top surface of the base 1. The bottom of the screw 4 is also fixedly connected to the limiting block 5 above the top surface of the base 1. The limiting block 5 is a hollow ring and forms a fixed connection with the bottom of the screw 4. The bottom surface of the screw 4 is also connected to the bottom rod 401 that penetrates the base 1. The top of the bottom rod 401 is fixedly connected to the bottom surface of the screw 4, and a cross opening is opened on its bottom surface for connecting the drill bit of the electric drill.

[0023] Furthermore, the quick-connect structure also includes an upper screw hole 6, which is opened at the center of the bottom surface of the connecting rod 2. The upper screw hole 6 is threadedly connected to the screw rod 4. After the screw rod 4 rotates, it moves relative to the connecting rod 2 with the upper screw hole 6 so that the bottom of the connecting rod 2 contacts the top surface of the limiting block 5.

[0024] In this embodiment, the screw 4 and the connecting rod 2 are separate components. The screw 4 is directly rotatably connected to the top surface of the base 1, and then the bottom of the screw 4 is fixedly connected to the base 1 through the bottom rod 401, forming a support for the base 1, as shown in the attached instruction manual. Figure 2 Or as shown in Figure 3, hold the connecting rod 2 and flip it upwards. The top of the connecting rod 2 and the bottom of the mounting sleeve 3 will rotate and connect relative to each other. At this time, the rivet acts as a bearing. Then the connecting rod 2 changes from being on the same vertical line as the mounting sleeve 3 to being relatively perpendicular, as shown in the attached instruction manual. Figure 3 As shown, the expansion bolt 302 can now be positioned. The output end of the electric hammer is aligned with the bottom of the expansion bolt 302, and then the expansion bolt 302 is driven into the wall on the ceiling. The expansion bolt 302 passes through the washer 301 and enters the wall to form a fixed connection, thus fixing the mounting sleeve 3 to the wall as well. The mounting sleeve 3 is now perpendicular to the wall. Then, the connecting rod 2 is lowered to connect to the base support 1. Further, multiple connecting rods 2 are installed sequentially on the wall according to the spacing of the screws 4 on the top surface of the base support 1. It is important to ensure that the lateral and longitudinal spacing between the multiple connecting rods 2 are consistent with the spacing of the screws 4; otherwise, errors will prevent proper alignment. After the connecting rod 2 is installed, the base support 1 can be moved closer to the wall above the ceiling. At this time, it is not necessary to consider whether the base support 1 is parallel to the top wall of the ceiling. First, use manual rotation to turn the screw 4 so that its top initially enters the upper screw hole 6. When the two are initially connected, the threaded connection has a longitudinal self-locking function, which can keep the base support 1 parallel to the wall above the ceiling. Then, connect the output end of the electric drill to the cross-shaped opening of the base rod 401 and start the electric drill to drive the base rod 401 to rotate. When the base rod 401 is inserted and rotated, it will also drive the screw 4 to rotate together. Then, the rotating screw 4 will quickly move relative to the upper screw hole 6 at the bottom of the connecting rod 2. However, as per the instruction manual... Figure 2 and 3 As shown, the connecting rod 2 does not rotate, so the upper screw hole 6 converts the circular motion of the screw 4 into linear motion, causing the screw 4 to drive the base 1 closer to the connecting rod 2. Finally, the limiting block 5 at the bottom of the screw 4 touches the bottom of the connecting rod 2 to complete the positioning. Since the bottoms of multiple connecting rods 2 will mate with the limiting block 5, the final height of multiple connecting rods 2 is consistent. By integrating the mounting sleeve 3 and the connecting rod 2, the mounting sleeve 3 completes the installation of the two stages directly after it is fixed. Then, the bottoms of multiple connecting rods 2 are connected to the base 1 to complete the installation of the entire bracket.

[0025] In use, hold connecting rod 2 and flip it upwards. The top of connecting rod 2 rotates and connects with the bottom of mounting sleeve 3. At this time, the rivet acts as a bearing. Then, connecting rod 2 changes from being on the same vertical line as mounting sleeve 3 to being relatively perpendicular, as shown in the instruction manual. Figure 3As shown, the expansion bolt 302 can now be positioned. The output end of the electric hammer is aligned with the bottom of the expansion bolt 302, and then the expansion bolt 302 is driven into the wall on the ceiling. The expansion bolt 302 passes through the washer 301 and enters the wall to form a fixed connection, thus fixing the mounting sleeve 3 to the wall as well. The mounting sleeve 3 is now perpendicular to the wall. Then, the connecting rod 2 is lowered to connect to the base support 1. Further, multiple connecting rods 2 are installed sequentially on the wall according to the spacing of the screws 4 on the top surface of the base support 1. It is important to ensure that the lateral and longitudinal spacing between the multiple connecting rods 2 are consistent with the spacing of the screws 4; otherwise, errors will prevent proper alignment. After the connecting rod 2 is installed, the base support 1 can be moved closer to the wall above the ceiling. At this time, it is not necessary to consider whether the base support 1 is parallel to the top wall of the ceiling. First, use manual rotation to turn the screw 4 so that its top initially enters the upper screw hole 6. When the two are initially connected, the threaded connection has a longitudinal self-locking function, which can keep the base support 1 parallel to the wall above the ceiling. Then, connect the output end of the electric drill to the cross-shaped opening of the base rod 401 and start the electric drill to drive the base rod 401 to rotate. When the base rod 401 is inserted and rotated, it will also drive the screw 4 to rotate together. Then, the rotating screw 4 will quickly move relative to the upper screw hole 6 at the bottom of the connecting rod 2. However, as per the instruction manual... Figure 2 and 3 As shown, the connecting rod 2 does not rotate, so the upper screw hole 6 converts the circular motion of the screw 4 into linear motion, causing the screw 4 to drive the base 1 to approach the connecting rod 2. Finally, the limiting block 5 at the bottom of the screw 4 touches the bottom of the connecting rod 2 to complete the positioning. Since the bottoms of multiple connecting rods 2 will mate with the limiting block 5, the final height of multiple connecting rods 2 is the same.

[0026] Example 2 Furthermore, in the quick-connect structure, the top of the screw 4 penetrates the top surface of the connecting rod 2 and forms a rotatable connection with the top surface of the connecting rod 2. The bottom surfaces of the connecting rod 2 are also fixedly installed with rods 7 parallel to the screw 4. The rods 7 are fixedly installed with a limiting block 5 at the middle of their outer surface. The quick-connect structure also includes a lower screw hole 8 opened on the top surface of the base 1. The lower screw hole 8 fits into the bottom of the screw 4 to form a threaded connection. The two sides of the lower screw hole 8 are also opened with limiting holes 9 penetrating through themselves on the top surface of the base 1. The limiting holes 9 fit into the rods 7 and are slidably connected, but the inner diameter of the limiting holes 9 is smaller than that of the limiting block 5.

[0027] As per the instruction manual Figure 6 As shown, the top of the screw 4 has a through hole with a diameter larger than that of the connecting rod 2, so the top of the screw 4 is suspended from the top surface of the connecting rod 2, forming a structure that can rotate relatively freely.

[0028] It is worth noting that in this embodiment, the bottom surface of the screw 4 has a cross-shaped opening to fit the output end of the electric drill.

[0029] In this embodiment, the screw 4 is integrally installed to the bottom of the connecting rod 2, so only a hole needs to be drilled on the top surface of the base 1. This results in higher integration. After the connecting rod 2 is installed, only the bottom screw 4 needs to be aligned downwards with the lower screw hole 8. It is not necessary to align the screw 4 with the upper screw hole 6 as in the previous embodiment. In this embodiment, by holding the connecting rod 2 and flipping it upwards, the top of the connecting rod 2 and the bottom of the mounting sleeve 3 rotate relative to each other and are connected. At this time, the rivet acts as a bearing. Then the connecting rod 2 changes from being on the same vertical line as the mounting sleeve 3 to a relatively vertical position, as shown in the attached instruction manual. Figure 3 As shown, the expansion bolt 302 can now be positioned. The output end of the electric hammer is aligned with the bottom of the expansion bolt 302, and then the expansion bolt 302 is driven into the wall above the ceiling. The expansion bolt 302 passes through the washer 301 and enters the wall to form a fixed connection, thus fixing the mounting sleeve 3 to the wall as well. The mounting sleeve 3 is now perpendicular to the wall. Next, the connecting rod 2 is lowered to connect the base support 1 and its bottom connecting rod 2. The screw 4 is now perpendicular to the bottom surface. Further, multiple connecting rods 2 are installed sequentially on the wall according to the spacing of the lower screw holes 8 on the top surface of the base support 1. It is worth noting that in this embodiment, the connecting rod 2... No drilling is required, therefore the height is much lower than that of the connecting rod 2 in Embodiment 1. After installing multiple connecting rods 2, the base 1 can be moved closer to the wall above the ceiling. At this time, it is not necessary to consider whether the base 1 is parallel to the top wall of the ceiling. First, use manual rotation to turn the screw 4 so that its bottom initially enters the lower screw hole 8. When the two are initially connected, the threaded connection has a longitudinal self-locking function, which can keep the base 1 parallel to the wall above the ceiling. Then, connect the output end of the electric drill to the bottom of the screw 4 and start the electric drill to drive the screw 4 to rotate. The rotating screw 4 will quickly move relative to the lower screw hole 8. However, as per the attached instruction manual... Figure 5 and 6 As shown, the connecting rod 7 at the bottom of the connecting rod 2 will also be inserted into the inner side of the limiting hole 9, so the connecting rod 2 will not rotate. The lower screw hole 8 converts the circular motion of the screw 4 into linear motion. At this time, the screw 4 drives the base 1 to approach the connecting rod 2. Finally, the limiting block 5 at the middle end of the connecting rod 7 touches the top surface of the base 1 above the limiting hole 9 to complete the positioning. Since the bottoms of multiple connecting rods 2 will be connected to the limiting block 5, the final height of multiple connecting rods 2 is the same.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bracket for a drainage pipe inside a suspended ceiling, comprising a recessed base (1) for receiving the drainage pipe, wherein connecting rods (2) are movably connected to both sides of the top surface of the base (1), characterized in that: The top two sides of the connecting rod (2) are rotatably connected to the extension rod (201). The two extension rods (201) extend upward and are rotatably connected to the mounting sleeve (3) on their inner sides. The top of the inner side of the mounting sleeve (3) is fixedly installed with a gasket (301). The center of the gasket (301) is penetrated by the bottom of the expansion bolt (302). The top of the expansion bolt (302) is located above the mounting sleeve (3), and the bottom is located inside the mounting sleeve (3). The bottom of the connecting rod (2) is also provided with a quick-connect structure for connecting the base (1); The quick-connect structure includes a screw (4) that is rotatably connected to the bottom of the connecting rod (2) or the top surface of the base (1). It also includes a limiting block (5), which is installed on the top surface of the base (1) or the bottom of the connecting rod (2). The limiting block (5) limits the proximity distance between the base and the connecting rod (2) when the screw (4) rotates and drives them to approach each other.

2. The bracket for the drainage pipe inside the ceiling according to claim 1, characterized in that: The tops of the two extension rods (201) extend toward the mounting sleeve (3) and separate toward both sides of the mounting sleeve (3), forming a "Y" shape.

3. The bracket for the drainage pipe inside the ceiling according to claim 2, characterized in that: The bottom of the outer surface of the mounting sleeve (3) is riveted to the top of the extension rods (201) on both sides, forming a rotatable connection. The mounting sleeve (3) is a hollow cylinder, including rectangular or circular shapes. The connection between the mounting sleeve (3) and the extension rods (201) is located at two-thirds to three-quarters of the way down the outer surface of the sleeve itself.

4. The bracket for the drainage pipe inside the ceiling according to claim 3, characterized in that: In the quick-connect structure, the screw (4) is rotatably connected to the top surface of the base (1). The bottom of the screw (4) is located above the top surface of the base (1) and a limiting block (5) is fixedly connected. The limiting block (5) is a hollow ring and is fixedly connected to the bottom of the screw (4). The bottom surface of the screw (4) is also connected to a bottom rod (401) that penetrates the base (1). The top of the bottom rod (401) is fixedly connected to the bottom surface of the screw (4), and a cross opening is opened on its bottom surface for connecting the drill bit of the electric drill.

5. The bracket for the drainage pipe inside the ceiling according to claim 4, characterized in that: The quick-connect structure also includes an upper screw hole (6), which is located at the center of the bottom surface of the connecting rod (2). The upper screw hole (6) is threadedly connected to the screw rod (4). After the screw rod (4) rotates, it moves relative to the connecting rod (2) with the upper screw hole (6) so that the bottom of the connecting rod (2) contacts the top surface of the limiting block (5).

6. The bracket for the drainage pipe inside the ceiling according to claim 3, characterized in that: In the quick-connect structure, the top of the screw (4) passes through the top surface of the connecting rod (2) and forms a rotatable connection with the top surface of the connecting rod (2). The bottom surfaces of the connecting rod (2) are also fixedly installed with a follower rod (7) parallel to the screw (4). The follower rod (7) is fixedly installed with a limiting block (5) at the middle of its outer surface. The quick-connect structure also includes a lower screw hole (8) opened on the top surface of the base (1). The lower screw hole (8) fits the bottom of the screw (4) and the two form a threaded connection. The two sides of the lower screw hole (8) are also opened with limiting holes (9) that pass through itself on the top surface of the base (1). The limiting holes (9) fit with the follower rod (7) and the two slide together, but the inner diameter of the limiting hole (9) is smaller than that of the limiting block (5).

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