Closestool

Abstract

The utility model relates to the technical field of bathroom closestools, and discloses a closestool which comprises a closestool body, a rotary fixing piece and a handrail. A mounting hole is formed in the closestool body, the rotary fixing part is provided with a first end and a second end which are oppositely arranged in the first direction, the first end penetrates through the mounting hole and is in limiting fit with the mounting hole, and the second end extends towards the outer side of the closestool body and is rotationally connected with the handrail. And the handrail can rotate around the first direction relative to the rotary fixing piece. The rotary handrail is stable in supporting, reliable in rotation and convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of bathroom toilet technology, and in particular to a toilet. Background Technology

[0002] With the increasing aging of the population, the quality of life for the elderly and those with mobility impairments is receiving more and more attention. As an important component of modern bathroom facilities, smart toilets must not only meet basic functional requirements but also consider the user's health and comfort. Traditional toilets lack consideration for the elderly and those with special needs, especially during sitting and standing, which can easily lead to falls and other accidents. Therefore, designing a toilet grab bar that provides support and assistance is particularly important.

[0003] While some toilets are equipped with grab bars in existing technologies, most grab bars have a relatively simple design, lacking flexibility and adaptability. For example, the position of the grab bars often cannot be adjusted according to the user's needs, resulting in ineffective support during use. In addition, existing grab bar structures are mostly static designs, unable to rotate or fold, limiting the convenience and comfort of users when using the toilet. Utility Model Content

[0004] The purpose of this invention is to design a toilet with a rotating handrail that provides stable support, reliable rotation, and easy installation.

[0005] To achieve the above objectives, this utility model provides a toilet, comprising: a toilet body, a rotating fixing member, and a handrail; the toilet body has an installation hole, and the rotating fixing member has a first end and a second end arranged opposite to each other along a first direction, the first end passing through the installation hole and being limited and engaged with the installation hole, and the second end extending outward toward the outside of the toilet body and being rotatably connected to the handrail, so that the handrail can rotate relative to the rotating fixing member around the first direction.

[0006] Furthermore, the handrail includes a rotating portion extending along the first direction and a handrail body extending along the second direction. The handrail body is connected to the outer peripheral wall of the rotating portion, and the rotating portion is rotatably connected to the second end, wherein the first direction and the second direction intersect.

[0007] Furthermore, the rotating part is provided with a rotating limiting groove, which is arc-shaped and extends circumferentially along the rotating part. The rotating fixing member is provided with a snap-fit ​​part, which is slidably connected to the rotating limiting groove.

[0008] Furthermore, the rotating part is provided with a limiting plate, and the rotating limiting groove is provided in the limiting plate and passes through the limiting plate along the first direction; the snap-fit ​​part includes a rib and a snap-fit ​​block, the rib protrudes from the second end and is slidably disposed in the rotating limiting groove, the snap-fit ​​block is connected to the rib and the projection of the snap-fit ​​block along the first direction extends at least partially to the outside of the rotating limiting groove.

[0009] Furthermore, it also includes a stop member and an elastic member. The second end is provided with an installation groove. The stop member is installed in the installation groove through the elastic member. The stop member can move along the depth direction of the installation groove. The rotating part can rotate relative to the rotating fixed part from the recycling position to the use position. When the rotating part is in the use position, the stop member is located in the rotation limiting groove, and the stop member is limited and engaged with the groove wall of the rotation limiting groove.

[0010] Furthermore, the rotating limiting groove includes a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove being spaced apart along the circumference of the rotating part. When the rotating part is in the use position, the stop member is positioned within the first limiting groove, and the stop member is in a limiting engagement with the groove wall of the first limiting groove. When the rotating part is in the retraction position, the stop member is positioned within the second limiting groove, and the stop member is in a limiting engagement with the groove wall of the second limiting groove.

[0011] Furthermore, it also includes a positioning component. The toilet body has a chamber, the mounting hole is a through hole and communicates with the chamber, and the positioning component is disposed in the chamber and connected to the first end.

[0012] Furthermore, it also includes a detection device and a connecting line. The rotating fixing member has a first channel extending along the first direction, and the positioning member has a second channel extending along the first direction. The first channel and the second channel are connected to form a threading channel. The handrail has a third channel. The detection device is installed on the handrail. One end of the connecting line is connected to the detection device, and the other end passes through the third channel and is disposed in the threading channel within the cavity.

[0013] Furthermore, it also includes a connector, wherein the rotating fixing member has a connecting hole, and the positioning member has a connecting groove at one end facing the rotating fixing member, and the connecting hole and the connecting groove are connected through the connector.

[0014] Furthermore, the positioning member has a threaded hole extending along the first direction, and the outer peripheral wall of the first end of the rotating fixing member has a connecting thread. The rotating fixing member is threadedly connected to the positioning member through the connecting thread and the threaded hole. The connecting groove is an annular threaded groove surrounding the outer periphery of the threaded hole, and the connecting member is threadedly connected to the connecting groove.

[0015] Compared with the prior art, the toilet of this utility model has the following advantages:

[0016] The toilet of this utility model embodiment uses a rotating fixing component and a mounting hole for limiting cooperation. The handrail is rotatably connected to the rotating fixing component, allowing the handrail to rotate relative to the rotating fixing component around a first direction. Users can adjust the position of the handrail according to their needs when sitting down and getting up, rotating it to a convenient gripping angle, thereby improving user comfort. The overall structure of this application is simple, easy to install and maintain, and has strong applicability. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the toilet grab handle according to an embodiment of the present utility model;

[0018] Figure 2 This is a partially exploded view of the toilet according to an embodiment of the present utility model;

[0019] Figure 3 This is a partial cross-sectional view of a toilet according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 4 This is a partial cross-sectional view of a toilet according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the structure of the rotating fixing component in the toilet according to an embodiment of the present utility model;

[0022] Figure 6 This is a structural schematic diagram of the positioning component in the toilet according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the rotating part in the toilet according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the toilet grab bar in the retraction position according to an embodiment of the present utility model;

[0025] Figure 9 This is a structural diagram of the toilet grab bar in the usage position according to an embodiment of the present utility model.

[0026] In the diagram, 1. Toilet body; 10. Chamber; 11. Mounting hole; 2. Rotating fixing part; 21. First end; 211. Connecting thread; 22. Second end; 221. Mounting groove; 23. Snap-fit ​​part; 231. Rib; 232. Snap-fit ​​block; 24. First channel; 25. Connecting hole; 3. Handrail; 30. Third channel; 31. Rotating part; 311. Rotating limiting groove; 311a. First limiting groove; 311b. Second limiting groove; 312. Limiting plate; 314. Guide actuating part; 32. Handrail body; 4. Positioning part; 41. Second channel; 42. Connecting groove; 43. Threaded hole; 5. Stop part; 6. Detection device; 61. Detection component; 62. Function button; 7. Connecting wire; 8. Connecting part; 9. Sealing ring; x. First direction; y. Second direction. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0031] Reference Figure 2 , Figure 3and Figure 4 A toilet according to an embodiment of the present invention includes: a toilet body 1, a rotating fixing member 2, and a handrail 3; the toilet body 1 is provided with a mounting hole 11, the rotating fixing member 2 has a first end 21 and a second end 22 arranged opposite to each other along a first direction x, the first end 21 passes through the mounting hole 11 and is limitedly engaged with the mounting hole 11, the second end 22 extends outward of the toilet body 1 and is rotatably connected to the handrail 3, so that the handrail 3 can rotate relative to the rotating fixing member 2 around the first direction x.

[0032] The mounting hole 11 can be an irregularly shaped hole structure, such as a cam shape, which can be matched with the rotating fixing member 2 to prevent the rotating fixing member 2 from rotating when the handrail 3 rotates. The connection between the handrail 3 and the rotating fixing member 2 can be achieved by means such as key connection or spline connection. In a specific embodiment of this application, there can be two handrails 3, located on the left and right sides of the toilet body 1 respectively, with two rotating fixing members 2 and two mounting holes 11 for connecting the handrail 3 to the toilet body 1.

[0033] By limiting the engagement between the rotating fixing part 2 and the mounting hole 11, the armrest 3 is rotatably connected to the rotating fixing part 2, allowing the armrest 3 to rotate relative to the rotating fixing part 2 around the first direction x. Users can adjust the position of the armrest 3 according to their own needs when sitting down and getting up, and rotate it to a convenient grip angle, thereby improving the comfort of use.

[0034] In some specific embodiments of this application, the armrest 3 includes a rotating portion 31 extending along the first direction x and an armrest body 32 extending along the second direction y. The armrest body 32 is connected to the outer peripheral wall of the rotating portion 31, and the rotating portion 31 is rotatably connected to the second end 22, wherein the first direction x and the second direction y intersect. This design allows the armrest body 32 to extend at a more ergonomic angle, making it easier for users to grip, while the rotating portion 31 ensures the rotational function of the armrest body 32.

[0035] Reference Figure 5 In some specific embodiments of this application, the rotating part 31 is provided with a rotating limiting groove 311, the rotating limiting groove 311 is arc-shaped and extends along the circumference of the rotating part 31, and the rotating fixing member 2 is provided with a snap-fit ​​part 23, the snap-fit ​​part 23 is slidably connected to the rotating limiting groove 311.

[0036] Specifically, the rotation limiting groove 311 can be a through groove extending along the first direction x in the internal structure of the rotating part 31, or it can be a groove extending axially on the peripheral wall of the rotating part 31. The engaging part 23 protrudes from the rotating fixing member 2 and is embedded in the rotation limiting groove 311, so that the engaging part 23 can only slide along the extending direction of the rotation limiting groove 311. Through the cooperation of the rotation limiting groove 311 and the engaging part 23, the rotation angle of the handrail 3 can be limited, preventing the handrail 3 from rotating excessively, ensuring safety in use, and avoiding entanglement of internal components such as the connecting wire 7. Specifically, there can be two rotation limiting grooves 311 in the rotating part 31, symmetrically arranged along the axial direction of the rotating part 31, to further ensure its limiting function.

[0037] In some specific embodiments of this application, the rotating part 31 is provided with a limiting plate 312, and the rotating limiting groove 311 is provided in the limiting plate 312 and passes through the limiting plate 312 along the first direction x; the snap-fit ​​part 23 includes a protruding rib 231 and a snap-fit ​​block 232. The protruding rib 231 protrudes from the second end 22 and is slidably disposed in the rotating limiting groove 311. The snap-fit ​​block 232 is connected to the protruding rib 231, and the projection of the snap-fit ​​block 232 along the first direction x extends at least partially to the outside of the rotating limiting groove 311. Specifically, the snap-fit ​​part 23 and the protruding rib 231 are separately provided. The snap-fit ​​part 23 can be fixedly connected to the protruding rib 231 by bolts to restrict the protruding rib 231 to slide within the rotating limiting groove 311 and prevent it from falling off. The rotation limiting groove 311 is set by the limiting plate 312, making the internal structure of the rotating part 31 more compact. The combination of the protruding rib 231 and the snap-fit ​​block 232 prevents the snap-fit ​​part 23 from disengaging from the rotation limiting groove 311, making the limiting more reliable.

[0038] Reference Figure 1 , Figure 7 and Figure 8In some specific embodiments of this application, a stop member 5 and an elastic member are also included. The second end 22 has a mounting groove 221. The stop member 4 is installed in the mounting groove 221 via the elastic member, and the stop member 5 can move along the depth direction of the mounting groove 221. The rotating part 31 can rotate relative to the rotating fixing member 2 from the retracted position to the use position. When the rotating part 31 is in the use position, the stop member 5 is located within the rotating limiting groove 311, and the stop member 5 is limited in engagement with the groove wall of the rotating limiting groove 311. The rotating limiting groove 311 has a guide actuating part 314 on its groove edge for limiting engagement with the stop member 4, which can press the stop member 5 to move it within the mounting groove 221. When the rotating part 31 rotates to the retracted position or is about to reach the use position, the guide actuating part 314 presses against the stop member 5, overcoming the elastic force of the elastic member and causing the stop member 5 to retract into the mounting groove 221. When the rotating part 31 reaches the use position, the stop member 5 is positioned opposite to the rotation limiting groove 311 and moves from the mounting groove 221 into the rotation limiting groove 311 under the action of the elastic member, where the groove wall of the rotation limiting groove 311 limits its movement. When the rotating part 31 leaves the use position, the guide actuating part 314 at the edge of the groove opening of the rotation limiting groove 311 presses against the stop member 5, causing it to retract back into the mounting groove 221. In other embodiments, the edge of the stop member 5 may also be provided with a guide portion that is easily pressed by the edge of the groove opening of the rotation limiting groove 311.

[0039] In some specific embodiments of this application, the rotating limiting groove 311 includes a first limiting groove 311a and a second limiting groove 311b. The first limiting groove 311a and the second limiting groove 311b are arranged circumferentially between the rotating part 31. When the rotating part 31 is in the use position, the stop member 5 is located in the first limiting groove 311a, and the stop member 5 is in a limiting engagement with the groove wall of the first limiting groove 311a. When the rotating part 31 is in the retraction position, the stop member 5 is located in the second limiting groove 311b, and the stop member 5 is in a limiting engagement with the groove wall of the second limiting groove 311b.

[0040] Specifically, the edges of the corresponding openings of the first limiting groove 311a and the second limiting groove 311b are each provided with a guide actuating part 314 for pressing the stop member 5. Through the arrangement of the first limiting groove 311a and the second limiting groove 311b, the stop member 5 can engage with a limiting groove when the control rotation part 31 of the handrail 3 is rotated to either the use position or the retracted position, thereby improving the user's operating feel when rotating the handrail.

[0041] In some specific embodiments of this application, a positioning element 4 is also included. The toilet body 1 has a chamber 10, and the mounting hole 11 is a through hole communicating with the chamber 10. The positioning element 4 is disposed in the chamber 10 and connected to the first end 21. Specifically, the positioning element 4 can be a nut, a snap ring pin, or other forms, which further fixes the toilet and improves the connection tightness between the rotating fixing element 2 and the toilet body 1.

[0042] In some specific embodiments of this application, a detection device 6 and a connecting line 7 are also included. The rotating fixing member 2 has a first channel 24 that runs through the first direction x, and the positioning member 4 has a second channel 41 that runs through the first direction x. The first channel 24 and the second channel 41 are connected to form a threading channel. A third channel 30 is provided in the handrail 3. The detection device 6 is installed on the handrail 3. One end of the connecting line 7 is connected to the detection device 6, and the other end passes through the third channel 30 and is disposed in the threading channel in the chamber 10.

[0043] The handrail 3, the rotating fixing member 2, and the positioning member 4 are designed with a hollow structure, and a wire passage is formed at the central axis. The connecting wire 7 of the detection device 6 can pass through this wire passage without affecting the rotation of the handrail 3, and the connecting wire 7 is not easy to break, ensuring the safety and aesthetics of the connecting wire 7. Specifically, the rotating part 31 of the handrail 3 also includes a rotating body and a decorative cover. The rotating body forms a partial third channel 30 along the first direction x, and the decorative cover is placed on the side of the rotating body opposite to the rotating fixing member 2.

[0044] In some specific embodiments of this application, the detection device 6 includes a detection component 61 disposed on the peripheral wall of the handrail 3. Specifically, the detection component 61 may be an electrode-type contact module or an optical detection module, capable of detecting indicators such as the user's heart rate, electrocardiogram, blood oxygen, and body fat. It may also include a fingerprint detection module, capable of identifying the user, analyzing and collecting the user's detection data, and archiving and tracking it. The detection component 61 may be located at the front end, sides, or front of the handrail 3 body, or in a position convenient for user use.

[0045] In some specific embodiments of this application, the detection device 6 includes a function button 62, which is disposed on the peripheral wall of the handrail 3. Specifically, the function button 62 can be configured to control the washing, drying, and flushing functions of the smart toilet. Similarly, the function button 62 can also be located at the front, sides, or front of the handrail 3 body in a convenient position for user use.

[0046] Reference Figure 6In some specific embodiments of this application, a connector 8 is also included. The rotating fixing member 2 has a connecting hole 25, and the positioning member 4 has a connecting groove 42 at one end facing the rotating fixing member 2. The connecting hole 25 and the connecting groove 42 are connected by the connector 8. The connector 8 enhances the connection strength between the rotating fixing member 2 and the positioning member 4, improves the stability of the overall structure, and prevents the rotating fixing member 2 from loosening when the handrail 3 is rotated under force. Specifically, the connector 8 can be a screw.

[0047] In some specific embodiments of this application, the positioning member 4 has a threaded hole 43 extending along the first direction x, and a connecting thread 211 is provided on the outer peripheral wall of the first end 21. The rotating fixing member 2 is threadedly connected to the positioning member 4 through the connecting thread 211 and the threaded hole 43. The connecting groove 42 is an annular threaded groove surrounding the outer periphery of the threaded hole 43, and the connecting member 8 is threadedly connected to the connecting groove 42. The positioning member 4 can be a nut. The threaded hole 43 and the connecting thread 211 of the first end 21 form a primary threaded connection between the positioning member 4 and the rotating fixing member 2. The connecting member 8 is connected to the connecting groove 42 through the connecting hole 25 to form a secondary threaded connection between the positioning member 4 and the rotating fixing member 2. The two-stage connection further improves the connection tightness between the positioning member 4 and the rotating fixing member 2. By setting the connecting groove 42 as an annular threaded groove, the annular threaded groove can correspond to the connecting hole 25 to install the connecting member 8 when the positioning member 4 is rotated to any angle.

[0048] In some specific embodiments of this application, a sealing ring 9 is also fitted onto the rotating fixing member 2. The sealing ring 9 is disposed within the chamber 10 and located between the side wall of the toilet body 1 and the positioning member 4. The sealing ring 9 can prevent water or other liquids outside the toilet body 1 from leaking into the chamber 10 through the mounting hole 11, while increasing the friction between the rotating fixing member 2 and the positioning member 4 and the side wall of the toilet body 1, thereby improving hygiene and safety.

[0049] In summary, this utility model embodiment provides a toilet with a rotating grab handle 3. The rotatable grab handle 3 significantly improves comfort and safety, allowing users to adjust its position according to their needs, making it particularly user-friendly for the elderly and those with mobility impairments. It also possesses intelligent expansion capabilities, facilitating the integration of various detection devices 6 and enhancing the toilet's overall intelligence. The connection structure between the grab handle 3 and the toilet body 1 is rationally designed. Through rotational limiting, automatic locking, and screw connections, the safety and structural stability of the grab handle 3 are enhanced, effectively preventing excessive rotation or arbitrary turning, thus comprehensively improving user experience and product quality.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A toilet, characterized in that, include: The toilet body (1), the rotating fastener (2), and the handrail (3) are provided. The toilet body (1) is provided with a mounting hole (11). The rotating fastener (2) has a first end (21) and a second end (22) arranged opposite to each other along a first direction (x). The first end (21) passes through the mounting hole (11) and is limited to the mounting hole (11). The second end (22) extends outward from the toilet body (1) and is rotatably connected to the handrail (3) so that the handrail (3) can rotate relative to the rotating fastener (2) around the first direction (x).

2. The toilet according to claim 1, wherein The handrail (3) includes a rotating part (31) extending along the first direction (x) and a handrail body (32) extending along the second direction (y). The handrail body (32) is connected to the outer peripheral wall of the rotating part (31). The rotating part (31) is rotatably connected to the second end (22). The first direction (x) intersects with the second direction (y).

3. The toilet according to claim 2, wherein The rotating part (31) is provided with a rotating limiting groove (311), which is arc-shaped and extends along the circumference of the rotating part (31). The rotating fixing member (2) is provided with a snap-fit ​​part (23), which is slidably connected to the rotating limiting groove (311).

4. The toilet of claim 3, wherein The rotating part (31) is provided with a limiting plate (312), and the rotating limiting groove (311) is provided on the limiting plate (312) and passes through the limiting plate (312) along the first direction (x); the snap-fit ​​part (23) includes a rib (231) and a snap-fit ​​block (232), the rib (231) protrudes from the second end (22) and slides in the rotating limiting groove (311), the snap-fit ​​block (232) is connected to the rib (231) and the projection of the snap-fit ​​block (232) along the first direction (x) extends at least partially to the outside of the rotating limiting groove (311).

5. The toilet of claim 3, wherein It also includes a stop member (5) and an elastic member. The second end (22) is provided with an installation groove (221). The stop member (5) is installed in the installation groove (221) through the elastic member. The stop member (5) can move along the depth direction of the installation groove (221). The rotating part (31) can rotate relative to the rotating fixing member (2) from the recycling position to the use position. When the rotating part (31) is in the use position, the stop member (5) is located in the rotating limiting groove (311). The stop member (5) is limited and engaged with the groove wall of the rotating limiting groove (311).

6. The toilet of claim 5, wherein, The rotating limiting groove (311) includes a first limiting groove (311a) and a second limiting groove (311b). The first limiting groove (311a) and the second limiting groove (311b) are arranged circumferentially on the rotating part (31). When the rotating part (31) is in the use position, the stop member (5) is located in the first limiting groove (311a), and the stop member (5) is in a limiting engagement with the groove wall of the first limiting groove (311a). When the rotating part (31) is in the retraction position, the stop member (5) is located in the second limiting groove (311b), and the stop member (5) is in a limiting engagement with the groove wall of the second limiting groove (311b).

7. The toilet of claim 1, wherein It also includes a positioning component (4), the toilet body (1) is provided with a chamber (10), the mounting hole (11) is a through hole and communicates with the chamber (10), and the positioning component (4) is located in the chamber (10) and connected to the first end (21).

8. The toilet of claim 7, wherein, It also includes a detection device (6) and a connecting line (7). The rotating fixing member (2) has a first channel (24) that runs through the first direction (x). The positioning member (4) has a second channel (41) that runs through the first direction (x). The first channel (24) and the second channel (41) are connected to form a threading channel. The handrail (3) has a third channel (30). The detection device (6) is installed on the handrail (3). One end of the connecting line (7) is connected to the detection device (6), and the other end passes through the third channel (30) and is located in the cavity (10) through the threading channel.

9. The toilet of claim 7, wherein, It also includes a connector (8), the rotating fixing member (2) has a connecting hole (25), the positioning member (4) has a connecting groove (42) at one end facing the rotating fixing member (2), and the connecting hole (25) and the connecting groove (42) are connected through the connector (8).

10. The toilet of claim 9, wherein, The positioning member (4) has a threaded hole (43) that passes through the first direction (x). The outer peripheral wall of the first end (21) of the rotating fixing member (2) is provided with a connecting thread (211). The rotating fixing member (2) is threadedly connected to the positioning member (4) through the connecting thread (211) and the threaded hole (43). The connecting groove (42) is an annular threaded groove surrounding the outer periphery of the threaded hole (43). The connecting member (8) is threadedly connected to the connecting groove (42).

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