CN218320070U

CN218320070U - Wire coiling device

Info

Publication number: CN218320070U
Application number: CN202222111692.XU
Authority: CN
Inventors: 李俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-01-17
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to a coiling device, which is provided with a coiling body, a coiling wheel, a clockwork spring and a shell, wherein the coiling wheel is arranged in the coiling body and realizes relative rotation, two coiling tracks which are arranged up and down are arranged on the coiling wheel, a positioning part and a first rotating supporting part are arranged on the first shaft end surface of the coiling wheel, a second rotating supporting part is arranged on the second shaft end surface, and the rotating positioning of the coiling wheel is established through the cooperation of the positioning part and a positioner; first rotation supporting part and second rotate the rotation that the supporting part supported the take-up pulley with the inside wall contact in receipts line storehouse respectively, and the clockwork spring setting is in receiving the line storehouse for the automatic spiral line of drive take-up pulley rotates, receives the appearance of line body embedding shell and receives in, and the data line on all roll-up tracks all stretches out and draws back through the wire mouth syntropy that predetermines. The utility model can realize the equidirectional extension of at least two wires at one time, and is more convenient to use; and the contact area between the take-up pulley and the take-up body is small, the noise is low, the style and the use hand feeling of the shell are increased, and the take-up and the carrying are convenient.

Description

Wire winding device

Technical Field

The utility model belongs to the technical field of the coiling device technique and specifically relates to but coiling device of roll-up data line.

Background

With the great popularization of electronic products, data lines with various functions, such as charging, data transmission and the like, are correspondingly matched. However, most data lines are not assisted by rolling, storage and the like in the carrying process, so that the data lines are easy to scatter and bring inconvenience to carrying, and are easy to bend and wind, and the service life of the data lines is influenced.

Then, a corresponding winding device is provided, for example, the winding device manufactured by using the tape measure principle can wind and store the data wire, so that the situations of scattering, bending, winding and knotting are avoided, the carrying is convenient, and the data wire can be automatically wound. However, the existing winding device generally can only stretch out and draw back one-way single line due to the structural defect, and meanwhile, the friction and the use noise are large due to the large contact area between the winding wheel and the shell, so that the application experience is poor and the improvement is needed.

Disclosure of Invention

An object of the utility model is to provide a spiral device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a winding device includes:

the wire take-up device comprises a wire take-up body, a positioning device and a wire guide device, wherein the wire take-up body is provided with a wire take-up bin and the positioning device is arranged in the wire take-up bin;

the take-up reel is arranged in the take-up bin and realizes rotation relative to the take-up body, at least two take-up tracks are arranged on the periphery of the take-up reel and are arranged at intervals along the axial direction of the take-up reel, a positioning part and a first rotating supporting part are arranged on the first axial end surface of the take-up reel, a second rotating supporting part is arranged on the second axial end surface of the take-up reel, and the rotating positioning of the take-up reel is established through the cooperation of the positioning part and the positioning part; the first rotating support part and the second rotating support part are respectively contacted with the inner side wall of the wire collecting bin to support the rotation of the wire collecting wheel, and a certain distance is respectively pulled between the first shaft end surface and the second shaft end surface of the wire collecting wheel and the inner side wall of the wire collecting bin;

the spiral spring is arranged in the take-up bin and used for driving the take-up pulley to rotate so as to realize automatic winding work of the take-up pulley;

the shell is equipped with on this shell and holds portion of connecing and second line mouth, and the line body is received in shape, the size matching of this appearance portion of connecing, realizes receiving the line body embedding and holds in connecing portion and be linked together with the shell as an organic whole, and second line mouth and first line mouth intercommunication, the data line on all roll-up tracks all stretches out and draws back through first line mouth and second line mouth syntropy.

The wire take-up body is a circular box body formed by combining an upper part and a lower part, and the wire take-up wheel is embedded between the upper part and the lower part; the corresponding accommodating part of the shell is also circular, the accommodating part penetrates through the upper side surface and the lower side surface of the shell, and the outer peripheral surface of the take-up body is provided with an inwards concave guide groove; the portion inner wall that connects that holds of shell is equipped with the direction muscle, through the guide way with the direction muscle cooperation guide receive the line body embedding hold connect in, receive line body and shell adhesion fixed.

The inner side wall of the upper part of the wire rewinding body is provided with a downwardly convex middle shaft, and the inner side wall of the lower part of the wire rewinding body is provided with an upwardly convex first ring; the take-up pulley is provided with a middle hole penetrating through the end surface of the first shaft and the end surface of the second shaft, the first rotating supporting part is an inner ring groove coaxial with the middle hole, and the second rotating supporting part is a second ring coaxial with the middle hole and protruding upwards; the end of the middle shaft penetrates through the middle hole of the take-up pulley from top to bottom and is positioned in the first circular ring, the first circular ring is inserted into the first rotating supporting part to form rotating support, and the second rotating supporting part is positioned on the periphery of the root part of the middle shaft and supports the inner side wall of the top part.

The winding wheel is composed of a base and an upper cover, a hollow cavity is formed in the base and used for embedding the clockwork spring, the upper cover covers the hollow cavity after being assembled on the base and limits the clockwork spring, one end of the clockwork spring is connected with the center shaft, and the other end of the clockwork spring is connected with the winding wheel.

In the scheme, a positioning hole and a limiting tooth mouth are arranged at the joint part of the base and the upper cover, and a positioning column and a limiting tooth are arranged on the upper cover; when the upper cover is combined and connected with the base, the positioning column is inserted into the positioning hole, and the limiting teeth are embedded into the limiting tooth openings.

The above scheme is further that the take-up body and the shell are both plastic parts, the periphery of the upper top part of the upper part is provided with a convex ring edge, and the ring edge is clamped at the upper port of the accommodating part and adhered with the shell; the outer diameter of the lower part is consistent with the inner diameter of the accommodating part, a cover plate is adhered to the lower side face of the lower part, and the cover plate is clamped at the lower port of the accommodating part and is adhered to the shell.

Above-mentioned scheme is further, the last top surface of receiving the line body the upper portion is the sunken first accepting groove of establishing downwards, and is equipped with the second accepting groove on the shell, and this first accepting groove and second accepting groove all communicate with second line mouth.

The above scheme is further that the housing is in a shape of 'omega', a magnetic part is arranged in the second accommodating groove, and the magnetic part works in cooperation with the second accommodating groove.

The utility model has the advantages that the structure is optimized, at least two winding tracks are arranged on the periphery of the take-up pulley, so that at least two wires can extend in the same direction at one time, and the use is more convenient; a positioning part and a first rotating supporting part are arranged on the first shaft end face of the take-up pulley, a second rotating supporting part is arranged on the second shaft end face of the take-up pulley, and the rotating positioning of the take-up pulley is established through the cooperation of the positioning part and the positioner, so that the adjustment of the telescopic length of the wire rod is realized; the first rotating supporting part and the second rotating supporting part are used for supporting, so that the contact area is small, the friction force between the take-up pulley and the take-up body can be effectively reduced, the noise is low, the abrasion is reduced, and the service life is prolonged; the shell provides installation for the wire collecting body, can be designed according to the required appearance, increases the style and the using hand feeling, and is convenient for wire collecting and carrying; has high practicability and is suitable for wide popularization.

Description of the drawings:

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIGS. 3 and 4 are schematic views of a combination of partial structures of the embodiment of FIG. 1;

FIG. 5 is a schematic structural distribution diagram of the take-up pulley, the positioner and the take-up body of the embodiment of FIG. 1;

FIG. 6 is a schematic view of a connection structure between the take-up pulley and the positioner in the embodiment of FIG. 1;

fig. 7 is an exploded view of the take-up pulley of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, which are drawings of the preferred embodiment of the present invention, the present invention relates to a winding device, especially for winding and storing and extending data line, which has a winding body 1, a winding wheel 3, a spiral spring 4 and a housing 5.

The wire collecting body 1 is provided with a wire collecting bin 11 and a positioner 2 arranged in the wire collecting bin, and a first wire opening 12 communicated with the wire collecting bin 11 is arranged on the peripheral wall of the wire collecting body 1. This take-up pulley 3 sets up in receiving the line storehouse 11 and realizes the rotation of relatively receiving line body 1 to come the roll-up data line or emit the data line through rotating, in this embodiment, be equipped with at least twice roll-up track 31 on the periphery of take-up pulley 3, roll-up track 31 is in the same direction as the axial interval arrangement along take-up pulley 3, and each roll-up track 31 satisfies a data line rolling, and separates through the baffle between the adjacent roll-up track 31. Under the rotation of the take-up pulley 3, a plurality of data wires are synchronously wound or released; two ends of the data line 7 shown in the figure are respectively wound corresponding to the two winding tracks 31, so that the two ends of the data line 7 can be synchronously and synchronously extended and retracted in the same direction, and accordingly plug connectors (not shown) correspondingly connected to the two ends of the data line 7 can be conveniently extended and retracted for use. The positioning part 32 and the first rotation supporting part 33 are arranged on the first axial end surface of the take-up pulley 3, the second rotation supporting part 34 is arranged on the second axial end surface of the take-up pulley 3, the rotation positioning of the take-up pulley 3 is established through the cooperation of the positioning part 32 and the positioner 2, and the data wire 7 is telescopically positioned. In this embodiment, the positioner 2 is a pawl arranged on the wire rewinding body 1, the positioning portion 32 is a clamping groove arranged in the annular track, when the wire rewinding wheel 3 rotates, the positioner 2 can move in the annular track, and when the wire rewinding wheel 3 stops, the positioner 2 is clamped with the positioning portion 32 to establish the rotational positioning of the wire rewinding wheel 3. The first rotating support part 33 and the second rotating support part 34 are respectively contacted with the inner side wall of the wire collecting bin 11 to support the rotation of the wire collecting wheel 3, and the first shaft end surface and the second shaft end surface of the wire collecting wheel 3 are respectively pulled away from the inner side wall of the wire collecting bin 11 by a certain distance, so that the contact area can be effectively reduced, the friction force between the wire collecting wheel and the wire collecting body can be effectively reduced, the noise is low, the abrasion is reduced, and the service life is prolonged. This clockwork spring 4 sets up in receiving line storehouse 11 for drive take-up pulley 3 rotates, realizes the automatic spiral work of take-up pulley 3, promotes the practicality, and the theory of operation of clockwork spring 4 is prior art, can reference the clockwork spring on products such as tape measure, no longer gives unnecessary details here. Be equipped with on this shell 5 and hold portion 51 and second port 52, this shape, the size matching of holding portion 51 receive line body 1, realize receiving line body 1 embedding and hold portion 51 in and even as an organic whole with shell 5, and second port 52 and first port 12 intercommunication, the data line on all furling tracks 31 is all through first port 12 and second port 52 syntropy flexible, convenient operation implementation.

As shown in fig. 1 to 7, in the embodiment, the take-up body 1 is a circular box body formed by combining an upper part 13 and a lower part 14, and the take-up pulley 3 is embedded between the upper part 13 and the lower part 14; correspondingly, the accommodating part 51 of the housing 5 is also circular, the accommodating part 51 penetrates through the upper and lower side surfaces of the housing 5, and the outer peripheral surface of the take-up body 1 is provided with a concave guide groove 15; the portion 51 inner wall that holds of shell 5 is equipped with direction muscle 53, and the cooperation of leading muscle 53 through guide way 15 and direction muscle guides to receive line body 1 embedding and holds portion 51 in, the counterpoint equipment of being convenient for promotes the combination convenience. In the embodiment, the wire rewinding body 1 and the outer casing 5 are adhered and fixed, further, the wire rewinding body 1 and the outer casing 5 are both plastic parts, the periphery of the upper top of the upper portion 13 is provided with a convex annular edge 132, and the annular edge 132 is clamped at the upper port of the receiving portion 51 and adhered to the outer casing 5; the outer diameter of the lower part 14 is consistent with the inner diameter of the accommodating part 51, a cover plate 6 is adhered to the lower side surface of the lower part 14, the cover plate 6 is clamped at the lower port of the accommodating part 51 and is adhered to the shell 5, and patterns or nameplates and the like can be added on the cover plate 6 to improve the practicability. In this embodiment, the adhesion may be achieved by adhesive adhesion or heat-seal adhesion, and the like, but is not limited thereto.

As shown in fig. 1 to 7, in the embodiment, a central shaft 131 protruding downward is disposed on an inner side wall of an upper portion 13 of the take-up body 1, and a first circular ring 141 protruding upward is disposed on an inner side wall of a lower portion 14; the take-up pulley 3 is provided with a middle hole penetrating through the end surfaces of the first shaft and the second shaft; the first rotation supporting portion 33 is an inner ring groove coaxial with the center hole, and the second rotation supporting portion 34 is a second ring coaxial with the center hole and projecting upward; the end of the middle shaft 131 passes through the middle hole from top to bottom and is positioned in the first circular ring 141, the first circular ring 141 is inserted into the first rotating support part 33 to form a rotating support, and the second rotating support part 34 is positioned at the periphery of the root of the middle shaft 131 and supports the inner side wall of the upper part 13 to form a rotating support. First ring 141 bulges down the medial surface of part 14 to and the second rotates the last side of 34 bulges take-up pulley 3 of supporting part, prop up through this structure, can reach take-up pulley 3 upper and lower ends and obtain respectively and support and satisfy the rotation requirement, still effectively pull open the terminal surface of take-up pulley 3 simultaneously and receive the distance between the line body 1, prevent the inside wall of take-up pulley 3's primary shaft terminal surface and secondary shaft terminal surface direct contact take-up bin 11, moreover, the steam generator is simple in structure, reduce area of contact, prevent large tracts of land contact friction, the noise is littleer. In this embodiment, the winding wheel 3 is movably combined by a base 35 and an upper cover 36, the second rotation supporting portion 34 is configured on the upper side surface of the upper cover 36, the positioning portion 32 and the first rotation supporting portion 33 are configured on the lower bottom surface of the base 35, the periphery of the base 35 is separated by a floating partition to configure a plurality of winding tracks 31, the base 35 has a hollow cavity 351 therein, the hollow cavity 351 is used for embedding the clockwork spring 4 for convenient assembly and positioning, one end of the clockwork spring 4 after being embedded is connected with the central shaft 131, and the other end of the clockwork spring 4 is connected with the winding wheel 3, so as to realize the power storage when the winding wheel 3 is paying off and the automatic rotation winding data wire when the winding wheel is winding up. After the upper cover 36 is assembled to the base 35, the hollow cavity is covered and the clockwork spring 4 is limited, so that the clockwork spring 4 is prevented from loosening and the working performance of the clockwork spring is ensured. The structure is convenient for mounting and protecting the clockwork spring, and simultaneously achieves compact structure and reduced appearance volume of products. Furthermore, the upper cover 36 is a flat sheet, a positioning hole 352 and a limiting tooth opening 353 are arranged on the combining part of the base 35 and the upper cover 36, a positioning column 361 and a limiting tooth 362 are arranged on the upper cover 36, the limiting tooth 362 is a partial edge convex structure of the upper cover 36, the positioning column 361 vertically protrudes downwards from the lower side of the upper cover, and the cross-sectional shape and size of the positioning column 361 are matched with the positioning hole 352 and can be circular, oval, square or multi-deformation. When the upper cover 36 is assembled with the base 35, the positioning post 361 is inserted into the positioning hole 352, and the limiting teeth 362 are embedded into the limiting tooth openings 353 in parallel, so as to achieve multi-directional and multi-form positioning and limiting, thereby achieving more accurate, more convenient and more stable assembly of the upper cover 36 and the base 35.

When the wire winding device is used, the inner end of the data wire is fixedly connected to the wire winding wheel 3, so that the data wire 7 can be wound and stored along the winding rail 31; when the data wire 7 is pulled out (i.e. paying off), the take-up pulley 3 rotates, and the clockwork spring 4 accumulates force; and then the positioner 2 is clamped with the positioning part 32 to establish the rotation positioning of the take-up pulley 3, so that the data wire 7 is pulled out for a certain length for use. When the data wire needs to be wound, the data wire 7 is pulled firstly, the clamping connection between the positioner 2 and the positioning part 32 is released, and the winding wheel 3 can be driven by the spring 4 to rotate to automatically wind the data wire; similarly, when the data line extending outward needs to be shortened, the user can also utilize the winding process to appropriately pull the data line, so that the positioner 2 is clamped into the positioning portion 32, and the operation is repeated, so that the data line 7 can be used in a telescopic manner.

In this embodiment, the upper top surface of the upper portion 13 of the wire rewinding body 1 is recessed with a first receiving groove 133, the housing 5 is provided with a second receiving groove 54, the first receiving groove 133 and the second receiving groove 54 are both communicated with the second port 52, and the first receiving groove 133 and the second receiving groove 54 are respectively used for receiving a plug connected to the outer end of the data wire, so as to achieve complete storage and provide corresponding protection. In the figure, the first receiving groove 133 is cross-shaped to accommodate a multi-plug connector, and the second receiving groove 54 is strip-shaped to accommodate a USB plug connector; of course, according to practical situations, the shapes and sizes of the first receiving groove 133 and the second receiving groove 54 may also be designed according to practical situations, and are not illustrated in detail herein. In this embodiment, the housing 5 is in a shape of "Ω", and has a small and exquisite shape, good hand feeling, and is also convenient to carry. The second receiving groove 54 is provided with a magnetic attraction portion 541, and the magnetic attraction portion 541 cooperates with the second receiving groove 54 to attract the plug connector, so that the plug connector is stably held in the second receiving groove 54 without automatically separating from the second receiving groove 54.

The utility model has the advantages that the structure is optimized, at least two winding tracks are arranged on the periphery of the take-up pulley, at least two wires are wound at one time, the first shaft end surface of the take-up pulley is provided with the positioning part and the first rotating supporting part, the second shaft end surface of the take-up pulley is provided with the second rotating supporting part, the rotating positioning of the take-up pulley is established through the cooperation of the positioning part and the positioner, and the adjustment of the telescopic length of the wires is realized; through the support of the first rotating support part and the second rotating support part, the contact area is small, the friction force between the take-up pulley and the take-up body can be effectively reduced, the noise is low, the abrasion is reduced, and the service life is prolonged; the shell provides installation for the wire collecting body, can be designed according to the required appearance, increases the style and the using hand feeling, and is convenient for wire collecting and carrying; has high practicability and is suitable for wide popularization.

Of course, the above detailed description of the present invention is only for the purpose of illustrating the technical conception and the features of the present invention, and the purpose thereof is to let the people who are familiar with this technology know the content of the present invention and implement it, therefore, all the equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A wire winding device is characterized by comprising:

the wire take-up device comprises a wire take-up body (1), wherein the wire take-up body (1) is provided with a wire take-up bin (11) and a positioner (2) arranged in the wire take-up bin, and a first wire opening (12) communicated with the wire take-up bin (11) is formed in the peripheral wall of the wire take-up body (1);

the take-up reel (3) is arranged in the take-up bin (11) and can rotate relative to the take-up body (1), at least two take-up rails (31) are arranged on the periphery of the take-up reel (3), the take-up rails (31) are arranged along the axial direction of the take-up reel (3) at intervals, a positioning part (32) and a first rotating supporting part (33) are arranged on the first shaft end face of the take-up reel (3), a second rotating supporting part (34) is arranged on the second shaft end face of the take-up reel (3), and the rotating positioning of the take-up reel (3) is established through the cooperation of the positioning part (32) and the positioner (2); the first rotating supporting part (33) and the second rotating supporting part (34) are respectively contacted with the inner side wall of the take-up bin (11) to support the rotation of the take-up pulley (3), and a first shaft end surface and a second shaft end surface of the take-up pulley (3) are respectively separated from the inner side wall of the take-up bin (11) by a certain distance;

the spring (4) is arranged in the take-up bin (11) and used for driving the take-up pulley (3) to rotate so as to realize automatic winding work of the take-up pulley (3);

shell (5), be equipped with on this shell (5) and hold portion (51) and second line mouth (52), this shape, the size matching that hold portion (51) receive line body (1), realize receiving line body (1) embedding and hold portion (51) in with shell (5) fuse, and second line mouth (52) and first line mouth (12) intercommunication, all data lines on the roll-up track (31) are all through first line mouth (12) and second line mouth (52) syntropy flexible.

2. A wire winding device according to claim 1, wherein the wire takeup body (1) is a circular box body formed by combining an upper portion (13) and a lower portion (14), and the wire takeup wheel (3) is embedded between the upper portion (13) and the lower portion (14); the accommodating part (51) of the corresponding shell (5) is also circular, the accommodating part (51) penetrates through the upper side surface and the lower side surface of the shell (5), and the outer peripheral surface of the take-up body (1) is provided with an inwards concave guide groove (15); the inner wall of the accommodating part (51) of the shell (5) is provided with a guide rib (53), the wire collecting body (1) is guided to be embedded into the accommodating part (51) through the matching of the guide groove (15) and the guide rib (53), and the wire collecting body (1) and the shell (5) are adhered and fixed.

3. A wire reeling device according to claim 2, wherein the inner side wall of the upper portion (13) of the take-up body (1) is provided with a downwardly projecting central shaft (131), and the inner side wall of the lower portion (14) is provided with a first upwardly projecting ring (141); the take-up pulley (3) is provided with a middle hole penetrating through the end surfaces of the first shaft and the second shaft, the first rotating supporting part (33) is an inner ring groove coaxial with the middle hole, and the second rotating supporting part (34) is a second ring coaxial with the middle hole and protruding upwards; the end of the middle shaft (131) penetrates through the middle hole of the take-up pulley (3) from top to bottom and is positioned in the first circular ring (141), the first circular ring (141) is inserted into the first rotating supporting part (33) to form rotating support, and the second rotating supporting part (34) is positioned on the periphery of the root of the middle shaft (131) and supports the inner side wall of the upper part (13).

4. A wire winding device according to claim 2 or 3, wherein the take-up reel (3) is movably combined with a base (35) and a cover (36), the base (35) has a hollow (351) inside, the hollow (351) is used for embedding the clockwork spring (4), the cover (36) is assembled on the base (35) to cover the hollow and limit the clockwork spring (4), one end of the clockwork spring (4) is connected with the central shaft (131), and the other end of the clockwork spring (4) is connected with the take-up reel (3).

5. A line reeling device according to claim 4, wherein the base (35) is provided with a positioning hole (352) and a limiting tooth opening (353) at the joint with the upper cover (36), and the upper cover (36) is provided with a positioning column (361) and a limiting tooth (362); when the upper cover (36) is combined and connected with the base (35), the positioning column (361) is inserted into the positioning hole (352), and the limiting teeth (362) are embedded into the limiting tooth openings (353).

6. A line reeling device according to claim 2, wherein the line reeling body (1) and the outer casing (5) are both plastic parts, and the upper top periphery of the upper portion (13) is provided with a convex rim (132), and the rim (132) is clamped at the upper port of the receiving portion (51) and adhered with the outer casing (5); the outer diameter of the lower part (14) is consistent with the inner diameter of the containing part (51), a cover plate (6) is adhered to the lower side surface of the lower part (14), and the cover plate (6) is clamped at the lower port of the containing part (51) and adhered to the shell (5).

7. A wire reeling device according to claim 6, wherein the upper top surface of the upper portion (13) of the wire reeling body (1) is downwardly recessed with a first receiving groove (133), and the housing (5) is provided with a second receiving groove (54), the first receiving groove (133) and the second receiving groove (54) both communicating with the second port (52).

8. A wire winding device according to claim 7, wherein the housing (5) is "Ω" -shaped, and a magnetic attraction part (541) is provided in the second housing groove (54), the magnetic attraction part (541) cooperating with the second housing groove (54).