A high-strength PVC pipe

Abstract

This utility model discloses a high-strength PVC pipe, belonging to the field of PVC pipe technology. It includes a first pipe and a second pipe, with a connecting pipe fixedly installed on the second pipe. A groove is formed on the side of the connecting pipe away from the second pipe. A threaded sleeve that inserts into the groove is fixedly installed on the first pipe. Multiple fixing grooves are formed within the grooves, and multiple positioning mechanisms are provided within the fixing grooves. This utility model uses a fixing block that slides into the positioning ring groove to fix the threaded sleeve, thus achieving convenient and efficient connection and installation of the first and second pipes without the need for glue, making it more energy-efficient and convenient. Disassembly of the first and second pipes is also convenient, quick, and efficient, without damaging either pipe, and does not reduce the strength of the ends of the first or second pipes after disassembly, thereby increasing the practicality of the PVC pipe.

Description

Technical Field

[0001] This utility model relates to a high-strength PVC pipe, belonging to the field of PVC pipe technology. Background Technology

[0002] In various pipeline connection projects, PVC pipes have been widely used in many fields such as building water supply and drainage, agricultural irrigation, and industrial fluid transportation due to their excellent corrosion resistance, lightweight properties, and relatively low cost.

[0003] Traditional PVC pipe connections rely heavily on adhesive bonding. Workers need to precisely control the amount of adhesive applied to ensure it's evenly distributed across the pipe ends before securing the two pipes together. However, the adhesive bonding process is cumbersome, requiring time for the adhesive to dry and cure, which reduces the efficiency of pipe installation. Furthermore, during pipe maintenance or replacement, traditionally adhesive-bonded PVC pipes are difficult to disassemble. Due to the strong bonding force of the adhesive, disassembly often requires specialized tools and may even damage the pipe ends, reducing their strength after disassembly. Utility Model Content

[0004] The technical problem this utility model aims to solve is to provide a high-strength PVC pipe that addresses the shortcomings of traditional PVC pipe splicing methods, which rely heavily on adhesive bonding. Construction workers need to precisely control the amount of adhesive applied to ensure even distribution at the pipe ends before splicing and fixing the two pipes together. However, the adhesive bonding process is cumbersome, requiring waiting for the adhesive to dry and cure, which reduces the efficiency of pipe splicing and installation. Furthermore, during pipe maintenance or replacement, disassembling traditionally adhesive-bonded PVC pipes is difficult. Due to the strong adhesive force, disassembly often requires specialized tools and may even damage the pipe ends, resulting in reduced strength at the pipe ends after disassembly.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: a high-strength PVC pipe, including a first pipe and a second pipe, a connecting pipe is fixedly installed on the second pipe, a groove is opened on the side of the connecting pipe away from the second pipe, a threaded sleeve that is inserted into the groove is fixedly installed on the first pipe, a plurality of fixing grooves are opened in the groove, a plurality of positioning mechanisms are provided in the fixing grooves, and a positioning ring groove is opened on the threaded sleeve.

[0006] The positioning mechanism is used to position the threaded sleeve within the groove;

[0007] The threaded sleeve is fitted with the first sealing mechanism, which creates a seal between the first pipe and the second pipe.

[0008] The connecting pipe has a connecting ring groove, and a connecting ring is slidably connected in the connecting ring groove. The connecting ring is equipped with a disassembly mechanism, which is used to release the positioning mechanism.

[0009] By adopting the above technical solution, when the threaded sleeve is inserted into the slide groove, the positioning mechanism is triggered to slide into the positioning ring groove. The positioning mechanism has a positioning effect on the threaded sleeve when it slides into the positioning ring groove, so that the threaded sleeve cannot be pulled out from the slide groove, thereby realizing the connection between the threaded sleeve and the connecting pipe, and also realizing the docking and fixing between the first pipe and the second pipe. When the connecting ring is rotated, the connecting ring drives the disassembly mechanism to rotate. During the rotation of the disassembly mechanism, the positioning mechanism is pushed out of the positioning ring groove, thereby releasing the positioning mechanism from the threaded sleeve. The first sealing mechanism is used to improve the sealing performance at the connection between the first pipe and the second pipe.

[0010] The present invention is further configured such that: the positioning mechanism includes a plurality of fixing blocks slidably connected to the fixing groove, the fixing blocks extend slidably into the slide groove through the fixing groove, the side of the fixing block extending into the slide groove and near the threaded sleeve is arc-shaped, a first spring fixedly installed in the fixing groove and fixedly connected to the fixing block, and one side of the arc-shaped surface of the fixing block is inserted into the positioning ring groove.

[0011] By adopting the above technical solution, in applications where sealing requirements are not stringent, the threaded sleeve slides into the groove. The end of the threaded sleeve sliding into the groove contacts and slides against the arc surface of the fixing block. As the fixing block continues to advance, the threaded sleeve pushes multiple fixing blocks to move in opposite directions simultaneously, causing the fixing blocks to slide into the fixing groove. During this process, the fixing blocks compress the first spring, causing it to deform. When the end of the threaded sleeve contacts and adheres tightly to the sealing gasket, the first spring releases its elastic force, pushing the fixing block to reset and slide into the positioning ring groove. At this point, the fixing block fixes the threaded sleeve in the positioning ring groove, preventing it from being pulled out of the groove. This achieves the docking installation of the first and second pipes. The docking installation is convenient and efficient, requires no glue, is more energy-efficient and convenient, and increases the practicality of PVC pipes.

[0012] The present invention is further configured as follows: the disassembly mechanism includes a plurality of first arc grooves opened on one side of the connecting ring groove and communicating with the inside of the fixing groove; a connecting column that is slidably connected to the first arc groove is fixedly connected to one side of the connecting ring; a sliding groove is opened on one side of the fixing block; the sliding groove is inclined near the inner wall of the first spring; the connecting column can slide against the inclined surface of the sliding groove; and a reset mechanism is provided on the connecting ring.

[0013] The reset mechanism includes multiple second arc grooves formed in the connecting ring. An arc-shaped slide rod is fixedly connected between the two opposite inner walls of the second arc groove. A connecting block that is slidably connected to the second arc groove is fixedly connected in the connecting ring groove. The arc-shaped slide rod slides through the connecting block. A second spring that is slidably sleeved on the outside of the arc-shaped slide rod is fixedly connected between one side of the second arc groove and the connecting block.

[0014] By adopting the above technical solution, in the initial state, under the action of the second spring, the connecting column is not initially located in the first arc groove, thus avoiding the connecting column affecting the sliding of the fixing block in the fixing groove. When the connecting ring is rotated, the connecting ring rotates synchronously, causing the connecting column fixed on it to rotate. As the connecting ring rotates, the connecting column slides into the fixing groove and contacts the inclined surface of the sliding groove. As the connecting column continues to slide in the first arc groove, the connecting column pushes the fixing block away from the threaded sleeve by sliding with the sliding groove, thereby causing the fixing block to slide out of the positioning ring groove, thereby releasing the fixing block from the threaded sleeve, allowing the threaded sleeve to be pulled out from the sliding groove, thereby releasing the docking fixation between the first pipe and the second pipe, allowing the second pipe to be disassembled and separated from the first pipe. Disassembly is convenient and quick. The disassembly of the first pipe and the second pipe does not require damage to the first pipe or the second pipe, and the strength of the end of the first pipe or the second pipe will not be reduced after disassembly, thereby increasing the practicality of the PVC pipe.

[0015] When the connecting ring is rotated to disconnect the first and second pipes, rotating the connecting ring will cause the inner wall of one side of the second arc groove to squeeze the second spring, causing the second spring to be compressed and deformed between the inner wall of one side of the second arc groove and the connecting block. After the first and second pipes are disassembled, the connecting ring is released. Under the action of the release force of the second spring, the inner wall of one side of the second arc groove is pushed, thereby driving the connecting ring to reset, and then simultaneously driving the connecting column to reset. Moreover, the second spring has a large elastic force, and the second spring will not easily deform under the shaking generated during normal use.

[0016] The present invention is further configured such that: the first sealing mechanism includes a rotating sleeve threadedly connected to the threaded sleeve, a rubber ring is fixedly installed on one side of the rotating sleeve, and a second sealing mechanism is provided on the rotating sleeve;

[0017] The second sealing mechanism includes a sliding sleeve fixedly connected to the side of the rotating sleeve near the connecting pipe. An installation ring is fixedly installed on the outside of the sliding sleeve, and a rubber sleeve is fixedly installed on the outside of the installation ring. The sliding sleeve is slidably connected to the threaded sleeve. A sealing ring groove adapted to the rubber ring is opened on the side of the connecting pipe near the threaded sleeve, and the rubber sleeve slides against the groove.

[0018] By adopting the above technical solution, when the sealing requirements are high when the first pipe and the second pipe are connected, the rotating sleeve is rotated. Because the rotating sleeve is threadedly connected to the threaded sleeve, the rotating sleeve moves axially during rotation. When the rotating sleeve moves towards the second pipe, it simultaneously drives the sliding sleeve, the mounting ring, the rubber sleeve, and the rubber ring to move towards the second pipe. When the rubber ring moves to be in close contact with the sealing ring groove, the contact between the rubber ring and the sealing ring groove can increase the contact area between the threaded sleeve and the sliding groove, thereby improving the seal between the threaded sleeve and the sliding groove.

[0019] The beneficial effects of this utility model are: the connection and installation of the first pipe and the second pipe are convenient and efficient, without the need for glue, which is more energy-saving and convenient; the first pipe and the second pipe are easy to disassemble, and the disassembly of the first pipe and the second pipe does not damage the first pipe or the second pipe, and the strength of the end of the first pipe or the second pipe is not reduced after disassembly, thereby increasing the practicality of the PVC pipe. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connecting pipe structure of this utility model;

[0022] Figure 3 This is a sectional view of the vertical cross-section of the connecting pipe of this utility model;

[0023] Figure 4 This is a schematic diagram of the first arc groove structure of this utility model;

[0024] Figure 5 This is a vertical cross-sectional view of the connecting ring and connecting pipe of this utility model;

[0025] Figure 6 This is a schematic diagram of the threaded sleeve structure of this utility model.

[0026] In the picture:

[0027] 1. First pipe; 2. Second pipe; 3. Connecting pipe; 4. Threaded sleeve; 5. Rotating sleeve; 6. Rubber ring; 7. Sliding sleeve; 8. Mounting ring; 9. Rubber sleeve; 10. Positioning ring groove; 11. Connecting ring groove; 12. Connecting ring; 13. Fixing groove; 14. Fixing block; 15. First arc groove; 16. Connecting column; 17. First spring; 18. Sliding groove; 19. Sliding groove; 20. Sealing gasket; 21. Second arc groove; 22. Arc-shaped sliding rod; 23. Connecting block; 24. Second spring; 25. Sealing ring groove. Detailed Implementation

[0028] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following details... Figure 1-6 As shown, this utility model is further illustrated.

[0029] like Figure 1-6 As shown, this utility model is a high-strength PVC pipe, including a first pipe 1 and a second pipe 2. The inner and outer diameters of the first pipe 1 and the second pipe 2 are the same. A connecting pipe 3 is installed on the second pipe 2. The connecting pipe 3 is fixedly sleeved at the end of the second pipe 2. A groove 19 is opened on the side of the connecting pipe 3 away from the second pipe 2. A threaded sleeve 4 that is inserted into the groove 19 is fixedly installed on the first pipe 1. A sealing gasket 20 is provided on the inner wall of the groove 19 away from the threaded sleeve 4. The threaded sleeve 4 is fixedly sleeved at the end of the first pipe 1. The groove 19 communicates with the interior of the second pipe 2. Multiple fixing grooves 13 are opened in the groove 19. Multiple positioning mechanisms are provided in the fixing grooves 13. A positioning ring groove 10 is opened on the threaded sleeve 4.

[0030] The positioning mechanism positions the threaded sleeve 4 within the slide groove 19 by engaging with the positioning ring groove 10.

[0031] The threaded sleeve 4 is provided with a first sealing mechanism, which seals the connection between the first pipe 1 and the second pipe 2.

[0032] A connecting ring groove 11 is provided on the connecting pipe 3, and a connecting ring 12 is slidably connected in the connecting ring groove 11. A disassembly mechanism is provided on the connecting ring 12, which is used to release the positioning mechanism.

[0033] When the threaded sleeve 4 is inserted into the slide groove 19, the positioning mechanism is triggered to slide into the positioning ring groove 10. The positioning mechanism has a positioning effect on the threaded sleeve 4 when it slides into the positioning ring groove 10, so that the threaded sleeve 4 cannot be pulled out from the slide groove 19, thereby realizing the connection between the threaded sleeve 4 and the connecting pipe 3, and also realizing the docking and fixing between the first pipe 1 and the second pipe 2. When the connecting ring 12 is rotated, the connecting ring 12 drives the disassembly mechanism to rotate. During the rotation of the disassembly mechanism, it pushes the positioning mechanism to slide out of the positioning ring groove 10, thereby releasing the positioning mechanism from the threaded sleeve 4. The first sealing mechanism is used to improve the sealing performance at the connection between the first pipe 1 and the second pipe 2.

[0034] like Figure 1-4As shown, the positioning mechanism includes multiple fixing blocks 14 that are slidably connected to the fixing groove 13. The fixing blocks 14 and the fixing groove 13 are arranged in a circular array at equal angles along the axial direction of the second pipe 2. The ends of the fixing blocks 14 can extend into the sliding groove 19, and the side of the fixing block 14 near the threaded sleeve 4 is arc-shaped. The fixing blocks 14 are slidably connected to the threaded sleeve 4. A first spring 17 that is fixedly connected to the fixing blocks 14 is fixedly installed in the fixing groove 13. The extension path of the first spring 17 is consistent with the movement path of the fixing blocks 14. One side of the arc-shaped surface of the fixing blocks 14 is inserted into the positioning ring groove 10.

[0035] In applications where sealing requirements are not stringent, this solution involves inserting the threaded sleeve 4 into the slide groove 19. The end of the threaded sleeve 4 inserted into the slide groove 19 contacts and slides against the arc surface of the fixing block 14. As the fixing block 14 continues to advance, the threaded sleeve 4 pushes multiple fixing blocks 14 to move in opposite directions simultaneously, causing the fixing blocks 14 to slide into the fixing groove 13. During this process, the fixing blocks 14 compress the first spring 17, causing it to deform. When the end of the threaded sleeve 4 contacts and adheres tightly to the sealing gasket 20, the release force of the first spring 17 pushes the fixing block 14 to reset, causing the fixing block 14 to slide into the positioning ring groove 10. At this point, the fixing block 14 slides into the positioning ring groove 10 and fixes the threaded sleeve 4, preventing it from being pulled out of the slide groove 19. This achieves the docking installation of the first pipe 1 and the second pipe 2. The docking installation is convenient and efficient, does not require glue, is more energy-saving and convenient, and thus increases the practicality of PVC pipes.

[0036] like Figure 2-4 As shown, the disassembly mechanism includes multiple first arc grooves 15 formed on one side of the connecting ring groove 11 and communicating with the interior of the fixing groove 13. A connecting post 16 is fixedly connected to one side of the connecting ring 12 and slidably connected to the first arc groove 15. Multiple connecting posts 16 are arranged in a circular array at equal angles along the axial direction of the connecting ring 12. The first arc groove 15 is formed along the circumference of the second pipe 2. A sliding groove 18 is formed on one side of the fixing block 14. The sliding groove 18 is inclined near the inner wall of the first spring 17. The inclined surface of the sliding groove 18 is inclined from the fixing block 14 to the first arc groove 15 in a direction away from the axis of the second pipe 2. The connecting post 16 can slide and abut against the inclined surface of the sliding groove 18. A reset mechanism is provided on the connecting ring 12.

[0037] like Figure 1-5As shown, the reset mechanism includes multiple second arc grooves 21 formed within the connecting ring 12. The second arc grooves 21 extend circumferentially along the second pipe 2. An arc-shaped slide rod 22 is fixedly connected between two opposite inner walls of the second arc groove 21. The arc-shaped slide rod 22 has the same curvature as the extension path of the second arc groove 21. A connecting block 23 is fixedly connected within the connecting ring groove 11 and slidably connected to the second arc groove 21. The connecting block 23 slides within the second arc groove 21 along the extension direction of the second arc groove 21. The arc-shaped slide rod 22 slides through the connecting block 23. A second spring 24 is fixedly connected between the inner wall of the second arc groove 21 on the side away from the connecting block 23 and the connecting block 23, and is slidably sleeved outside the arc-shaped slide rod 22. The extension path of the second spring 24 is consistent with the movement path of the connecting block 23.

[0038] Initially, under the action of the second spring 24, the connecting post 16 is not initially located within the first arc groove 15, preventing the connecting post 16 from affecting the sliding of the fixing block 14 within the fixing groove 13. When the connecting ring 12 is rotated, the rotation of the connecting ring 12 synchronously drives the connecting post 16 fixed on it to rotate. As the connecting ring 12 rotates, the connecting post 16 slides into the fixing groove 13 and contacts the inclined surface of the sliding groove 18. As the connecting post 16 continues to slide within the first arc groove 15, the connecting post 16 pushes the fixing block 14 away from the sliding groove 18. The threaded sleeve 4 moves in a certain direction, thereby causing the fixing block 14 to slide out of the positioning ring groove 10, thus releasing the fixing block 14 from the threaded sleeve 4, allowing the threaded sleeve 4 to be pulled out from the sliding groove 19, thereby releasing the docking fixation between the first pipe 1 and the second pipe 2, and allowing the second pipe 2 to be disassembled and separated from the first pipe 1. The disassembly is convenient and quick, and the disassembly of the first pipe 1 and the second pipe 2 does not require damage to the first pipe 1 or the second pipe 2, and the strength of the end of the first pipe 1 or the second pipe 2 will not be reduced after disassembly, thereby increasing the practicality of the PVC pipe.

[0039] When the connecting ring 12 is rotated to disconnect the first pipe 1 and the second pipe 2, rotating the connecting ring 12 will cause the inner wall of one side of the second arc groove 21 to squeeze the second spring 24, causing the second spring 24 to be compressed and deformed between the inner wall of one side of the second arc groove 21 and the connecting block 23. After the first pipe 1 and the second pipe 2 are disassembled, the connecting ring 12 is released. Under the action of the release elastic force of the second spring 24, the inner wall of one side of the second arc groove 21 is pushed, thereby driving the connecting ring 12 to reset, and then simultaneously driving the connecting column 16 to reset. The elastic force of the second spring 24 is large, and the second spring 24 will not easily deform during the shaking generated in normal use.

[0040] like Figure 1-6 As shown, the first sealing mechanism includes a rotating sleeve 5 threadedly connected to a threaded sleeve 4, a rubber ring 6 fixedly installed on one side of the rotating sleeve 5, and a second sealing mechanism provided on the rotating sleeve 5.

[0041] The second sealing mechanism includes a sliding sleeve 7 fixedly connected to the side of the rotating sleeve 5 near the connecting pipe 3. An installation ring 8 is fixedly installed on the outside of the sliding sleeve 7, and a rubber sleeve 9 is fixedly installed on the outside of the installation ring 8. The sliding sleeve 7 is slidably connected to the threaded sleeve 4. A sealing ring groove 25 adapted to the rubber ring 6 is opened on the side of the connecting pipe 3 near the threaded sleeve 4. The rubber sleeve 9 slides and fits against the inner side of the groove 19. At this time, the rubber sleeve 9 can fill the gap between the groove 19 and the first pipe 1. In use, when the sealing requirements are high when the first pipe 1 and the second pipe 2 are connected, the rotating sleeve 5 is rotated. Because the rotating sleeve 5 is threadedly connected to the threaded sleeve 4, the rotating sleeve 5 moves axially during rotation. When the rotating sleeve 5 moves closer to the second pipe 2, it simultaneously drives the sliding sleeve 7, the mounting ring 8, the rubber sleeve 9, and the rubber ring 6 to move closer to the second pipe 2. When the rubber ring 6 moves to be in close contact with the sealing ring groove 25, the contact between the rubber ring 6 and the sealing ring groove 25 can increase the contact area between the threaded sleeve 4 and the sliding groove 19, thereby improving the seal between the threaded sleeve 4 and the sliding groove 19. Furthermore, the close contact between the rubber ring 6 and the sealing ring groove 25 can make the connection between the connecting pipe 3 and the threaded sleeve 4 tighter, thereby improving the connection strength between the connecting pipe 3 and the threaded sleeve 4.

[0042] In this scheme, when the sealing requirements are not high, the second sealing mechanism can be unscrewed from the threaded sleeve 4, so that the connecting pipe 3 and the threaded sleeve 4 can be directly inserted, and the connection is sealed by the sealing gasket 20.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength PVC pipe comprising a first pipe (1) and a second pipe (2), characterized in that: A connecting pipe (3) is fixedly installed on the second pipe (2). A groove (19) is provided on the side of the connecting pipe (3) away from the second pipe (2). A threaded sleeve (4) that is inserted into the groove (19) is fixedly installed on the first pipe (1). A sealing gasket (20) is provided on the inner wall of the groove (19) away from the threaded sleeve (4). Multiple fixing grooves (13) are provided in the groove (19). Multiple positioning mechanisms are provided in the fixing grooves (13). A positioning ring groove (10) is provided on the threaded sleeve (4). The positioning mechanism positions the threaded sleeve (4) in the slide groove (19) by engaging with the positioning ring groove (10); The threaded sleeve (4) is provided with a first sealing mechanism, which seals the connection between the first pipe (1) and the second pipe (2); A connecting ring groove (11) is provided on the connecting pipe (3), and a connecting ring (12) is slidably connected in the connecting ring groove (11). A disassembly mechanism is provided on the connecting ring (12), and the disassembly mechanism is used to release the positioning mechanism.

2. The high-strength PVC pipe according to claim 1, characterized in that: The positioning mechanism includes multiple fixed blocks (14) that are slidably connected to the fixed groove (13). The fixed blocks (14) extend slidably into the slide groove (19) through the fixed groove (13). The side of the fixed blocks (14) extending into the slide groove (19) and close to the threaded sleeve (4) is arc-shaped. A first spring (17) that is fixedly connected to the fixed blocks (14) is fixedly installed in the fixed groove (13). One side of the arc-shaped surface of the fixed blocks (14) is inserted into the positioning ring groove (10).

3. A high-strength PVC pipe according to claim 2, characterized in that: The disassembly mechanism includes multiple first arc grooves (15) opened on one side of the connecting ring groove (11) and communicating with the inside of the fixing groove (13). A connecting post (16) that is slidably connected to the first arc groove (15) is fixedly connected to one side of the connecting ring (12). A sliding groove (18) is opened on one side of the fixing block (14). The sliding groove (18) is inclined near the inner wall of the first spring (17). The connecting post (16) can slide against the inclined surface of the sliding groove (18). A reset mechanism is provided on the connecting ring (12).

4. A high-strength PVC pipe according to claim 3, characterized in that: The reset mechanism includes multiple second arc grooves (21) formed in the connecting ring (12). An arc-shaped slide rod (22) is fixedly connected between the two opposite inner walls of the second arc groove (21). A connecting block (23) is fixedly connected in the connecting ring groove (11) and slidably connected to the second arc groove (21). The arc-shaped slide rod (22) slides through the connecting block (23). A second spring (24) is fixedly connected between one side of the second arc groove (21) and the connecting block (23) and is slidably sleeved outside the arc-shaped slide rod (22).

5. A high-strength PVC pipe according to claim 1, characterized in that: The first sealing mechanism includes a rotating sleeve (5) threadedly connected to a threaded sleeve (4), a rubber ring (6) fixedly installed on one side of the rotating sleeve (5), and a second sealing mechanism provided on the rotating sleeve (5).

6. A high-strength PVC pipe according to claim 5, characterized in that: The second sealing mechanism includes a sliding sleeve (7) fixedly connected to the side of the rotating sleeve (5) near the connecting pipe (3). An installation ring (8) is fixedly provided on the outside of the sliding sleeve (7). A rubber sleeve (9) is fixedly installed on the outside of the installation ring (8). The sliding sleeve (7) is slidably connected to the threaded sleeve (4). A sealing ring groove (25) adapted to the rubber ring (6) is opened on the side of the connecting pipe (3) near the threaded sleeve (4). The rubber sleeve (9) slides against the groove (19).

Images