Lifting type drainer and water stop plug of lifting type drainer

Abstract

The utility model provides a lifting type drainer and a water stop plug of the lifting type drainer, and belongs to the technical field of drainage. The problem that replacement is inconvenient is solved. The lifting type drainer comprises a drainer body, a water stop plug inserted into the drainer body, a transverse connecting rod with the inner end inserted into the drainer body and a vertical pull rod linked with the outer end of the transverse connecting rod, the water stop plug comprises a connecting piece and a sealing head fixedly connected to the top end of the connecting piece, and a clamping opening is formed in the lower portion of the connecting piece; the bayonet is in a long strip shape in the vertical direction and penetrates through the bottom of the connecting piece, a plurality of clamping grooves are formed in the inner wall of the bayonet in the vertical direction, the connecting piece is inserted outside the inner end of the transverse connecting rod through the bayonet, and the inner end of the transverse connecting rod is clamped in one clamping groove. The utility model has the advantage of convenient replacement.

Description

Technical Field

[0001] This utility model belongs to the field of drainage technology, and relates to a pull-out drain and a water-stop plug for the pull-out drain. Background Technology

[0002] A pull-out drain is a type of drain that opens or closes the drain by pulling it up. For example, a drain disclosed in patent application number 201520232836.4 includes a drain pipe, a drain plug at the top of the drain pipe, a connector at the bottom of the drain plug, and a pull-out device connected to the connector via a spherical bearing. A transverse bearing tube is located on one side of the drain pipe, and the spherical bearing is located at the end of the bearing tube. The bearing tube consists of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. The outer ring is threadedly sealed to the bearing tube. The pull-out device consists of a connecting rod and a lifting rod connected by a clamping clamp and a positioning plate. One end of the connecting rod is movably connected to the connector via the spherical bearing. The upper end of the connector is threadedly connected to the drain plug. The connector has four blades that connect to the inner wall of the drain pipe, and the lower end of the connector has a connecting hole through which the connecting rod can pass. When in use, the lifting rod drives the connecting rod, which, through the lever action of the spherical bearing, moves the connecting part up and down, thereby enabling the drain plug to close or open.

[0003] After prolonged use, the lower end of the connector may wear excessively, causing it to misalign with the lifting device. In this case, the connector needs to be replaced. Since the connecting rod passes through the connector, removing the connector from the drain pipe for replacement requires first dislodging the connecting rod from the connector's connection hole. This means disconnecting the connection between the connecting rod and the lifting rod, and then unscrewing the outer ring from the bearing tube to release the connecting rod's fixation. Therefore, replacement involves disassembling multiple components. While the outer ring, being threaded to the bearing tube, is not particularly difficult to handle, the connection between the connecting rod and the lifting rod, via a positioning plate and clamping clamp, makes disassembly and reconnection extremely complex, resulting in the aforementioned inconvenience in replacing the drain assembly.

[0004] The complexity of disassembling the connecting rod and the lifting rod is a key factor causing inconvenience in replacing the connecting parts. Therefore, the most common approach is to improve the ease of disassembly between the connecting rod and the lifting rod. For example, a drain device disclosed in patent application number 201620346147.8 simplifies the connection between the connecting rod and the lifting rod, allowing them to be quickly disassembled. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a pull-out drain and a water-stop plug for the pull-out drain, thus solving the problem of inconvenient replacement.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A pull-out drain assembly includes a drain body, a stop plug inserted into the drain body, a horizontal connecting rod with its inner end inserted into the drain body, and a vertical pull rod linked to the outer end of the horizontal connecting rod. The stop plug includes a connector and a sealing head fixed to the top of the connector. The connector is characterized in that the lower part of the connector has a bayonet, which is elongated vertically and extends through the bottom of the connector. The inner wall of the bayonet has several slots vertically. The connector is inserted into the outer side of the inner end of the horizontal connecting rod through the bayonet, and the inner end of the horizontal connecting rod is locked in one of the slots.

[0008] The connector is inserted into the inner end of the horizontal connecting rod via a bayonet, and the inner end of the horizontal connecting rod is locked in one of the slots. This connects the water-stop plug to the inner end of the horizontal connecting rod. When the user lifts the vertical pull rod, the inner end of the horizontal connecting rod moves the water-stop plug downward, causing the sealing head to press against the upper end of the drain body to form a seal, thus allowing the basin to hold water. When the user presses down the vertical pull rod, the inner end of the horizontal connecting rod moves the water-stop plug upward, causing the sealing head to separate from the upper end of the drain body, thus allowing the basin to drain water. When the drain plug needs replacing after prolonged use, the snap-fit ​​mechanism extends through the bottom of the connector. The user simply pulls the old drain plug upwards. During this process, the crossbar presses against the inner wall of the snap-fit, opening it and detaching the old plug from the crossbar. The user then inserts the new drain plug into the drain body. The snap-fit ​​mechanism in the new plug is then opened by the crossbar, allowing it to be inserted until the inner end of the crossbar engages with the groove on the inner wall of the snap-fit. This snap-fit ​​design allows users to replace the drain plug directly without disassembling the crossbar, significantly improving the convenience of replacement.

[0009] Furthermore, in practice, the vertical position of the horizontal connecting rod will vary when installed on different washbasins. The bayonet is vertically elongated, and the number of slots on the inner wall of the bayonet is several along the vertical direction. This design allows the connector of the water-stop plug to form a reliable fit with the horizontal connecting rod in different positions in the vertical direction, ensuring stability and preventing uneven wear between the connector and the horizontal connecting rod.

[0010] In the aforementioned pull-out drainer, the lower end of the latch is funnel-shaped.

[0011] The inner end of the cross link is located inside the drain body. It cannot be seen with the naked eye when the water stop plug is engaged with the cross link. Therefore, the lower end of the bayonet is designed to be flared. This way, even if the bayonet and the side of the cross link are not aligned when the water stop plug is inserted, the user only needs to slightly rotate the water stop plug to make the cross link slide directly into the lower end of the bayonet, which further improves the convenience of replacement.

[0012] In the aforementioned pull-out drain assembly, the lower part of the connector is a flat, elongated plate in the vertical direction, the thickness direction of the connector is the axial direction of the horizontal connecting rod, and the bayonet is set along the thickness direction of the connector.

[0013] The lower part of the connector is a long plate along the vertical direction, combined with a long strip-shaped bayonet. In this way, the lower part of the entire connector is like a flexible clamp, which can firmly hold the connector when it is inserted into the inner end of the cross link through the bayonet.

[0014] In the aforementioned pull-out drain assembly, the width of the lower part of the connector gradually decreases from top to bottom.

[0015] The width of the lower part of the connector gradually decreases from top to bottom, which means that the deformation capacity is stronger closer to the bottom when there is a bayonet. This makes it easier for the cross link to squeeze into or come out of the bayonet, further improving the convenience of replacement.

[0016] In the above-mentioned pull-out drain, the pull-out drain also includes a filter screen with an open top and a cylindrical shape. The upper part of the connector has several guide vanes. The filter screen is sleeved on the upper part of the connector. The bottom of the filter screen is provided with a clearance opening. The lower part of the connector passes through the clearance opening.

[0017] By attaching a cylindrical filter screen with an open top to the upper part of the connector, hair and other debris can be filtered even when the pull-up drain is in the discharge state.

[0018] However, as mentioned in the background section, in existing pull-out drain assemblies, the crossbar and the stop plug are connected via a perforation, making the stop plug very inconvenient to disassemble. Furthermore, the filter screen needs to be removed for cleaning every few days, which necessitates removing the stop plug. Therefore, filter screens are not typically installed in pull-out drain assemblies. In this pull-out drain assembly, the stop plug can be directly pulled out for disassembly and installation. By placing the filter screen over the upper part of the stop plug's connector, the filter screen can be removed along with the stop plug when pulled out using the latch at the bottom of the connector, significantly improving the convenience for users to remove and clean the filter screen.

[0019] In the aforementioned pull-out drainer, there are two guide vanes, which intersect in a cross shape. The lower part of one of the guide vanes gradually increases in thickness, and the bottom of the filter screen rests against the lower part of the guide vane.

[0020] By setting the lower thickness of one of the guide vanes to gradually increase, this structure provides a position for the bottom of the filter screen to rest against the lower part of the guide vane. This allows the filter screen to be removed along with the stop plug when it is pulled out, making it convenient for the user to clean the filter screen.

[0021] In the aforementioned pull-out drainer, the side of the filter screen is provided with a clearance notch corresponding to the guide vane along the circumferential direction. The clearance notch is vertically strip-shaped, and the guide vane passes through the clearance notch.

[0022] By setting the clearance notch, the guide vanes can still properly guide and cooperate with the main body of the drain without being obstructed by the filter screen.

[0023] In the aforementioned pull-out drain assembly, the connector includes a body and an insert. The body is made of plastic, and the insert is made of thermoplastic elastic material. The lower part of the body is inverted U-shaped, and the insert is also inverted U-shaped. The insert is fixedly connected to the inner side of the lower part of the body. The lower end of the latch is located on the body, and the remaining position of the latch is located on the insert.

[0024] In actual production, the main body is manufactured first, and then the main body is placed in a mold to form the insert, thus obtaining the connector. The lower end of the snap-fit ​​is on the main body, while the rest of the snap-fit ​​is on the insert. The main body of the connector is made of plastic, which has a certain degree of hardness to ensure that the guide vane and the main body of the drain can form a reliable guiding fit. The insert is a thermoplastic elastomer, which has better elasticity than plastic. Its cooperation with the cross link increases the damping, ensuring the connection stability between the water stop plug and the cross link. This ensures that the cross link can stably drive the water stop plug when it swings, and it can also maintain good clamping force even when it is in a state of prolonged opening or after the water stop plug has been repeatedly inserted and removed.

[0025] A water-stop plug for a pull-out drain includes a connector and a sealing head fixedly connected to the top of the connector. The upper part of the connector has several guide vanes along the circumferential direction. The connector is characterized in that the lower part of the connector is provided with a bayonet, which is elongated vertically and extends through the bottom of the connector. The inner wall of the bayonet is provided with several slots along the vertical direction.

[0026] When connecting the stop plug to the horizontal connecting rod of the pull-out drain, the user simply inserts the stop plug into the drain body. Because the connector has a locking slot at the bottom that extends through the bottom of the connector, the stop plug can be directly inserted into the inner end of the horizontal connecting rod. During insertion, the outer wall of the inner end of the horizontal connecting rod will open the locking slot until the inner end of the horizontal connecting rod is locked into the groove on the inner wall of the locking slot, thus firmly connecting the horizontal connecting rod and the stop plug together. When the stop plug needs to be replaced, the user simply pulls the stop plug upwards. During this process, the horizontal connecting rod will press against the inner wall of the locking slot, opening it and ultimately detaching the stop plug from the horizontal connecting rod. The locking mechanism allows users to replace the stop plug directly without disassembling the horizontal connecting rod, greatly improving the convenience of replacement.

[0027] Furthermore, in practice, the vertical position of the horizontal connecting rod will vary when installed on different washbasins. The bayonet is vertically elongated, and the number of slots on the inner wall of the bayonet is several along the vertical direction. This design allows the connector of the water-stop plug to form a reliable fit with the horizontal connecting rod in different positions in the vertical direction, ensuring stability and preventing uneven wear between the connector and the horizontal connecting rod.

[0028] Compared with existing technologies, this pull-out drainer has a bayonet at the bottom of the connector. The bayonet is long and narrow vertically, and the inner wall of the bayonet has a groove along the vertical direction. This allows the water stop plug and the horizontal connecting rod to be connected by inserting the bayonet into the outer side of the inner end of the horizontal connecting rod, and the inner end of the horizontal connecting rod is locked in one of the grooves. This connection structure ensures that users can replace the water stop plug directly by plugging and unplugging without disassembling the horizontal connecting rod, which greatly improves the convenience of replacement. Attached Figure Description

[0029] Figure 1 This is a 3D schematic diagram of the pull-out drainer.

[0030] Figure 2 This is a cross-sectional view of the pull-up drainer in Embodiment 1.

[0031] Figure 3 This is a schematic diagram of the connection between the horizontal connecting rod and the water stop plug in Embodiment 1.

[0032] Figure 4 This is a three-dimensional schematic diagram of the water stop plug in Example 1.

[0033] Figure 5 This is a schematic diagram of the fit between the stop plug and the filter screen in Example 2.

[0034] Figure 6 This is an exploded view of the water stop plug and filter screen in Example 2.

[0035] Figure 7This is a cross-sectional view of the pull-out drain device in Embodiment 2 (the cross-sectional angle is...). Figure 2 same).

[0036] Figure 8 This is a three-dimensional schematic diagram of the water stop plug in Example 3.

[0037] In the diagram, 1. Main drain body; 2. Water stop plug; 3. Horizontal connecting rod; 3a. Fitting part; 4. Vertical tie rod; 5. Connector; 5a. Guide vane; 5b. Bayonet; 5c. Slot; 5d. Body; 5e. Insert; 6. Sealing head; 7. Upper connecting body; 7a. Upper annular abutment part; 8. Lower connecting body; 8a. Lower annular abutment part; 8b. Interface; 9. Upper sealing gasket; 10. Lower sealing gasket; 11. Support ring; 12. Locking cap; 13. Locking block; 14. Locking screw; 15. Filter screen; 15a. Clearance opening; 15b. Clearance notch. Detailed Implementation

[0038] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0039] Example 1

[0040] like Figure 1 , Figure 2 and Figure 3As shown, the pull-out drain includes a drain body 1, a stop plug 2 inserted into the drain body 1, a horizontal connecting rod 3 with its inner end inserted into the drain body 1, and a vertical pull rod 4 linked to the outer end of the horizontal connecting rod 3. The drain body 1 includes an upper connecting body 7 and a lower connecting body 8, both cylindrical in shape. The lower connecting body 8 is threaded to the lower end of the upper connecting body 7, and an interface 8b protrudes from the side of the lower connecting body 8. The horizontal connecting rod 3 passes through the interface 8b into the lower connecting body 8. The upper outer side of the upper connecting body 7 has an upper annular abutment 7a, and the upper outer side of the lower connecting body 8 has a lower annular abutment 8a. During installation, the lower end of the upper connecting body 7 is passed through a hole in the bottom of the basin, and then the lower connecting body 8 is threaded to the lower end of the upper connecting body 7. This causes the upper annular abutment 7a to abut against the inner bottom wall of the basin, while the lower annular abutment 8a abuts against the bottom of the basin, thus fixing the drain body 1 to the basin. Furthermore, to ensure that there is no leakage between the installed drain body 1 and the basin, a sealing gasket 9 can be fitted onto the upper connecting body 7 and pressed against the inner bottom wall of the basin by the upper annular abutment part 7a. Similarly, a lower sealing gasket 10 can be fitted onto the lower connecting body 8 and pressed against the bottom of the basin by the lower annular abutment part 8a. The horizontal connecting rod 3 has a spherical mating part 3a near its inner end. The mating part 3a is located inside the interface 8b. The interface 8b has two support rings 11 located on both sides of the mating part 3a, and the mating part 3a and the two support rings 11 form a spherical fit. The interface 8b is externally threaded with a locking cap 12, which positions the two support rings 11 inside the interface 8b. The spherical fit allows the horizontal connecting rod 3 to swing up and down around this fulcrum. The water-stop plug 2 includes a connector 5 and a sealing head 6 fixedly connected to the top of the connector 5. The upper part of the connector 5 has several guide vanes 5a along the circumference. The connector 5 forms a guiding fit with the drain body 1 through each guide vane 5a. There are two guide vanes 5a, and the two guide vanes 5a intersect in a cross shape. A locking block 13 is fixed to the outer end of the horizontal connecting rod 3. The locking block 13 has an insertion hole. The lower end of the vertical pull rod 4 passes through the insertion hole. A locking screw 14 is threaded to the side of the locking block 13. The end of the locking screw 14 abuts against the side of the vertical pull rod 4, thereby fixing the vertical pull rod 4 and the horizontal connecting rod 3 together. Thus, when the vertical pull rod 4 moves up and down, it can drive the horizontal connecting rod 3 to swing.

[0041] like Figure 2 , Figure 3 and Figure 4As shown, the lower part of the connector 5 is provided with a bayonet 5b, which is elongated vertically and extends through the bottom of the connector 5. The lower end of the bayonet 5b is flared. The inner wall of the bayonet 5b is provided with several slots 5c vertically. The connector 5 is inserted into the outer side of the inner end of the horizontal connecting rod 3 through the bayonet 5b, and the inner end of the horizontal connecting rod 3 is locked in one of the slots 5c. The slot 5c is an arc-shaped groove, and the groove wall of the slot 5c transitions with the inner wall of the bayonet 5b through a rounded transition. The connector 5 is inserted into the inner end of the horizontal connecting rod 3 through the bayonet 5b, and the inner end of the horizontal connecting rod 3 is locked in one of the slots 5c. This connects the water-stop plug 2 with the inner end of the horizontal connecting rod 3. When the user lifts the vertical pull rod 4, the inner end of the horizontal connecting rod 3 will drive the water-stop plug 2 to move downward, so that the sealing head 6 abuts against the upper end of the drain body 1 to form a seal, thereby allowing the washbasin to hold water. When the user presses down the vertical pull rod 4, the inner end of the horizontal connecting rod 3 will drive the water-stop plug 2 to move upward, so that the sealing head 6 separates from the upper end of the drain body 1, thereby allowing the washbasin to drain water. When the water stop plug 2 needs to be replaced after prolonged use, since the bayonet 5b penetrates the bottom of the connector 5, the user only needs to pull the old water stop plug 2 upwards. During this process, the cross link 3 will press against the inner wall of the bayonet 5b, opening it up and causing the old water stop plug 2 to finally detach from the cross link 3. Afterwards, the user only needs to insert the new water stop plug 2 into the drain body 1. The bayonet 5b of the connector 5 in the new water stop plug 2 will be opened by the cross link 3 and inserted outside the cross link 3 until the inner end of the cross link 3 is locked in the slot 5c provided on the inner wall of the bayonet 5b. The design of the bayonet 5b allows the user to replace the water stop plug 2 directly without disassembling the cross link 3, greatly improving the convenience of replacement. The inner end of the horizontal connecting rod 3 is located inside the drain body 1. It cannot be directly seen with the naked eye when the water stop plug 2 is engaged with the horizontal connecting rod 3. Therefore, the lower end of the bayonet 5b is set in a trumpet shape. In this way, even if the bayonet 5b and the side of the horizontal connecting rod 3 are not aligned when the water stop plug 2 is inserted, the user only needs to slightly rotate the water stop plug 2 to make the horizontal connecting rod 3 slide directly into the lower end of the bayonet 5b, which further improves the convenience of replacement.

[0042] Furthermore, in practice, the vertical position of the horizontal connecting rod 3 will vary when installed on different washbasins. The bayonet 5b is elongated vertically, and the number of slots 5c on the inner wall of the bayonet 5b is several vertically. This design allows the connector 5 of the water-stop plug 2 to reliably engage with the horizontal connecting rod 3 at different positions in the vertical direction, ensuring stability and preventing uneven wear between the connector 5 and the horizontal connecting rod 3.

[0043] In this embodiment, as Figure 3 and Figure 4As shown, the lower part of the connector 5 is a flat, elongated plate in the vertical direction. The lower part of the connector 5 is connected to the bottom of one of the guide vanes 5a, and the thickness direction of the lower part of the connector 5 is the same as the thickness direction of the guide vane 5a. The thickness direction of the connector 5 is the axial direction of the cross link 3. The latch 5b is set along the thickness direction of the connector 5, meaning that the latch 5b penetrates both sides of the connector 5 along the thickness direction. The width of the lower part of the connector 5 decreases from top to bottom. This gradual decrease in width means that, with the latch 5b, the deformation capacity is stronger closer to the bottom, making it easier for the cross link 3 to be inserted into or removed from the latch 5b, further improving the convenience of replacement.

[0044] Example 2

[0045] This embodiment is basically the same in structure and principle as Embodiment 1, except that: in this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, this pull-out drain also includes a cylindrical filter screen 15 with an open top. The filter screen 15 is fitted over the upper part of the connector 5, and the bottom of the filter screen 15 has a clearance opening 15a through which the lower part of the connector 5 passes. By fitting the cylindrical filter screen 15 with an open top over the upper part of the connector 5, hair and other debris can be filtered when the pull-out drain is in the discharge state. The lower part of one of the guide vanes 5a gradually increases in thickness (this guide vane 5a is the one connected to the lower part of the connector 5), and the bottom of the filter screen 15 abuts against the lower part of this guide vane 5a. By setting the lower part of one of the guide vanes 5a to gradually increase in thickness, this structure provides a position for the bottom of the filter screen 15 to abut against the lower part of the guide vane 5a, so that when the stop plug 2 is pulled out directly, the filter screen 15 can be removed together for easy cleaning by the user.

[0046] Furthermore, the side of the filter screen 15 is provided with a clearance notch 15b corresponding to the guide vane 5a along the circumferential direction. The clearance notch 15b is vertically strip-shaped, and the guide vane 5a passes through the clearance notch 15b. The filter screen 15 gradually decreases in size from top to bottom, and the filter screen 15 between two adjacent clearance notches 15b is spring-shaped. The upper port of the upper connecting body 7 in the drain body 1 is outwardly flared. When this pull-up drain is in the open state, the upper part of the filter screen 15 is located inside the upper port of the upper connecting body 7, and the upper outer wall of the filter screen 15 abuts against the inner wall of the upper port of the upper connecting body 7. When the user lifts the vertical pull rod 4, the inner end of the horizontal connecting rod 3 will drive the water stop plug 2 to move downward. The filter screen 15 will move downward along with the water stop plug 2. Since the filter screen 15 gradually decreases in size from top to bottom and the filter screen 15 between two adjacent clearance notches 15b is spring-shaped, the filter screen 15 will contract under the action of the inner wall of the upper connecting body 7 during this process.

[0047] Example 3

[0048] This embodiment is basically the same as embodiment one in structure and principle, except that: Figure 8 As shown, in this embodiment, specifically, the connector 5 includes a body 5d and an insert 5e. The body 5d is a plastic part, and the insert 5e is a thermoplastic elastic part. The lower part of the body 5d is inverted U-shaped, and the insert 5e is also inverted U-shaped. The insert 5e is fixedly connected to the lower inner side of the body 5d. The lower end of the latch 5b is located on the body 5d, and the remaining position of the latch 5b is located on the insert 5e. In actual production, the body 5d is produced first, and then the body 5d is placed in a mold to form the insert 5e, thereby obtaining the connector 5. The lower end of the latch 5b is on the body 5d, while the remaining position of the latch 5b is on the insert 5e. The body 5d of the connector 5 is made of plastic and has a certain degree of hardness, which ensures that the guide vane 5a and the main body 1 of the drain can form a reliable guiding fit. The insert 5e is a thermoplastic elastomer, which has better elasticity than plastic. When it is used in conjunction with the cross link 3, it can increase the damping and ensure the connection stability between the water stop plug 2 and the cross link 3. It ensures that the cross link 3 can stably drive the water stop plug 2 to move when it swings. At the same time, it can maintain good clamping force even when it is in a long-term open state or after the water stop plug 2 has been repeatedly inserted and removed.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pull-out drain assembly, comprising a drain body (1), a stop plug (2) inserted into the drain body (1), a horizontal connecting rod (3) with its inner end inserted into the drain body (1), and a vertical pull rod (4) linked to the outer end of the horizontal connecting rod (3), wherein the stop plug (2) comprises a connector (5) and a sealing head (6) fixedly connected to the top of the connector (5), characterized in that, The lower part of the connector (5) is provided with a bayonet (5b), which is long and extends through the bottom of the connector (5) in the vertical direction. The inner wall of the bayonet (5b) is provided with several slots (5c) in the vertical direction. The connector (5) is inserted into the outer side of the inner end of the horizontal connecting rod (3) through the bayonet (5b), and the inner end of the horizontal connecting rod (3) is locked in one of the slots (5c).

2. The pull-out drain device according to claim 1, characterized in that, The lower end of the bayonet (5b) is trumpet-shaped.

3. The pull-out drain device according to claim 2, characterized in that, The lower part of the connector (5) is a flat, long plate in the vertical direction. The thickness direction of the connector (5) is the axial direction of the horizontal connecting rod (3). The bayonet (5b) is set along the thickness direction of the connector (5).

4. The pull-out drain device according to claim 3, characterized in that, The width of the lower part of the connector (5) gradually decreases from top to bottom.

5. The pull-out drainer according to claim 1, 2, 3, or 4, characterized in that, This pull-out drain also includes a filter screen (15) with an open top and a cylindrical shape. The upper part of the connector (5) has several guide vanes (5a). The filter screen (15) is fitted over the upper part of the connector (5). The bottom of the filter screen (15) is provided with a relief opening (15a). The lower part of the connector (5) passes through the relief opening (15a).

6. The pull-out drainer according to claim 5, characterized in that, The number of guide blades (5a) is two, and the two guide blades (5a) intersect in a cross shape. The lower part of one of the guide blades (5a) gradually increases in thickness, and the bottom of the filter screen (15) abuts against the lower part of the guide blade (5a).

7. The pull-out drainer according to claim 6, characterized in that, The filter screen (15) has a circumferentially circumferentially provided clearance notch (15b) corresponding to the guide blade (5a). The clearance notch (15b) is vertically strip-shaped, and the guide blade (5a) passes through the clearance notch (15b).

8. The pull-out drain device according to claim 5, characterized in that, The connector (5) includes a body (5d) and an insert (5e). The body (5d) is a plastic part, and the insert (5e) is a thermoplastic elastic part. The lower part of the body (5d) is inverted U-shaped, and the insert (5e) is inverted U-shaped. The insert (5e) is fixedly connected to the lower inner side of the body (5d). The lower end of the bayonet (5b) is located on the body (5d), and the remaining positions of the bayonet (5b) are located on the insert (5e).

9. A stop plug for a pull-out drain, comprising a connector (5) and a sealing head (6) fixedly connected to the top of the connector (5), wherein the upper part of the connector (5) has a plurality of guide vanes (5a) in the circumferential direction, characterized in that, The lower part of the connector (5) is provided with a bayonet (5b), which is long and extends through the bottom of the connector (5) in a vertical direction. The inner wall of the bayonet (5b) is provided with several slots (5c) in a vertical direction.

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