CN218093556U - Connection structure and rotary device - Google Patents

Abstract

The application discloses connection structure and rotary device relates to mechanical parts technical field. The connecting structure comprises an active rotating part, a passive rotating part and a locking part. The driving rotating piece is respectively provided with a first open slot and a second open slot which are communicated with each other; the driven rotating piece is sleeved on the driving rotating piece, the hole wall of the first through hole of the driven rotating piece extends towards the inside of the driven rotating piece and is provided with a first protruding part, and the first protruding part is clamped in the first open groove; the locking piece is rotationally overlapped on the active rotating piece and is abutted on the passive rotating piece, the hole wall of a second through hole of the locking piece extends towards the inside of the second through hole and is provided with a second protruding portion, and when the locking piece rotates for a preset angle relative to the passive rotating piece, the second protruding portion is clamped in the second groove to limit the passive rotating piece to move axially along the active rotating piece. The application provides a connection structure can prevent that passive rotating member from producing the displacement along the axial, has avoided the problem of taking off from the initiative rotating member.

Description

Connection structure and rotary device

Technical Field

The application relates to the technical field of mechanical parts, in particular to a connecting structure and a rotating device.

Background

At present, in a household electric fan with blades, a fan blade is embedded into a motor rotating shaft by adopting a D-shaped groove, and a linear workpiece is embedded into the motor rotating shaft, so that the fan blade can be clamped into the linear workpiece. When the fan blades rotate in the forward direction (clockwise direction), the fan blades push air to enable the fan blades to bear force in the reverse direction, the axial outward loosening can be prevented, and the stress surface of the fan blade component when the motor rotating shaft rotates can be increased. When the motor rotates reversely (anticlockwise), the fan blades push air to enable the air to be stressed reversely, the fan blades are stressed axially outwards and are easy to loosen, and therefore the design can only work when the motor rotates forwards.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application is directed to overcoming the shortcomings of the prior art and providing a connection structure.

A first aspect of the present application provides a connection structure, including:

the driving rotating piece is provided with a first open slot and a second open slot which are communicated with each other, the first open slot is formed along the axial direction of the driving rotating piece, and the second open slot is formed along the circumferential direction of the driving rotating piece;

the driven rotating piece is provided with a first through hole penetrating through the driven rotating piece, the driven rotating piece is sleeved on the driving rotating piece, a first protruding part extends towards the inside of the driven rotating piece from the hole wall of the first through hole, and the first protruding part is clamped in the first open groove;

the locking piece is provided with a second through hole penetrating through the locking piece, the locking piece is rotationally sleeved on the active rotating piece and abutted against the passive rotating piece, a second protruding part extends towards the inner part of the hole wall of the second through hole, and when the locking piece is opposite to the passive rotating piece and rotates for a preset angle, the second protruding part is clamped in the second groove to limit the passive rotating piece to move axially along the active rotating piece.

In addition, according to the connection structure of the present application, the following additional technical features may be provided:

in some embodiments of the present application, one end of the first slot close to the driving rotation member is provided with a first inlet for the first protrusion to slide in, one end of the second slot is provided with a second inlet communicated with the first slot, and the second inlet is used for the second protrusion to slide in.

In some embodiments of the present application, a thickness of the first protrusion along an axial direction of the passive rotating member is H, a distance from a side of the second inlet far away from the first inlet to an end of the first slot far away from the first inlet is H, and H is equal to or less than H.

In some embodiments of the present application, a length of the first protrusion along a radial direction of the first through hole is L, a depth of the first groove is D, and L ≦ D is satisfied; and/or the length of the second bulge along the radial direction of the second through hole is S, the depth of the second groove is d, and S is less than or equal to d.

In some embodiments of the present application, the first slot is perpendicular to the second slot.

In some embodiments of the present application, the first protruding portion is provided in plurality, the first protruding portions are provided in plurality at intervals along a circumferential direction of the first through hole, the number of the first slots is equal to the number of the first protruding portions, the second slot is provided in one, and the second slot is communicated with one of the first slots; or the first bulge is provided with a plurality of, and is a plurality of the first bulge is followed the circumference interval setting of first through-hole, first grooved quantity with the quantity of first bulge equals, the grooved quantity of second with first grooved quantity equals, the quantity of second bulge equals the grooved quantity of second, and is a plurality of the second bulge is followed the circumference interval setting of second through-hole.

In some embodiments of the present application, an installation groove is formed along a circumferential direction of a wall of the first through hole, and a third through hole is formed at a part of a groove bottom of the installation groove;

the locking piece is embedded into the mounting groove and is abutted against the driven rotating piece, a limiting portion is arranged on the locking piece, the limiting portion movably penetrates through the third through hole and protrudes out of the outer surface of the driven rotating piece, and the limiting portion can move along the third through hole.

In some embodiments of the present application, the outer wall of the locking piece is provided with an anti-slip groove; and/or a top cover is arranged on the locking piece, the top cover is positioned at one end of the second through hole, and a holding part is arranged on the top cover.

In some embodiments of the present application, the second boss is an interference fit with the second slot.

A second aspect of the present application provides a swivel device comprising a connection structure as described in any of the embodiments of the first aspect.

Compared with the prior art, the beneficial effects of this application are: the application provides a connection structure, this connection structure includes initiative rotating member, passive rotating member and locking piece. The first open slot and the second open slot which are communicated with each other are formed in the driving rotating piece, the driven rotating piece is sleeved on the driving rotating piece, meanwhile, the first protruding portion on the driven rotating piece is clamped in the first open slot, and then the locking piece is rotatably sleeved on the driving rotating piece and abutted against the driven rotating piece. When the locking piece rotates the predetermined angle relatively passive rotating member, second bellying joint in the second fluting to the axial displacement of passive rotating member along initiative rotating member is followed in the restriction. Therefore, no matter the passive rotating part is static or rotates clockwise or anticlockwise along with the rotating part, the passive rotating part cannot generate displacement in the axial direction, the problem of loosening from the active rotating part is avoided, and the reliability of a product is improved.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 illustrates a perspective view of a connection structure provided by an embodiment of the present application;

FIG. 2 is a first schematic exploded view of a connection structure provided in an embodiment of the present application;

fig. 3 is a schematic exploded view of a connection structure provided in an embodiment of the present application;

FIG. 4 is a schematic perspective view illustrating an active rotating member of a connecting structure according to an embodiment of the present application;

fig. 5 is a schematic view illustrating a structure of a driving rotation member in a connection structure according to an embodiment of the present application;

FIG. 6 is a perspective view of a locking element in a connection according to an embodiment of the present application;

fig. 7 is a schematic perspective view illustrating a passive rotating member in a connection structure according to an embodiment of the present application;

FIG. 8 is a schematic view illustrating a structure of a passive rotating member in a connecting structure according to another embodiment of the present disclosure;

FIG. 9 is a perspective view of a connection structure provided in another embodiment of the present application;

FIG. 10 is an exploded view of a connection structure provided in accordance with another embodiment of the present application;

FIG. 11 is a schematic view illustrating an assembly structure of a passive rotating member and a locking member in a connecting structure according to another embodiment of the present application;

FIG. 12 is a schematic perspective view of a passive rotating member in a connecting structure according to another embodiment of the present application;

fig. 13 is a perspective view schematically showing a locking member in a coupling structure according to another embodiment of the present application;

FIG. 14 is a perspective view of a locking element in a connection according to another embodiment of the present application;

fig. 15 is a view schematically illustrating a structure of a locking member in a coupling structure according to still another embodiment of the present application;

fig. 16 isbase:Sub>A schematic sectional view alongbase:Sub>A-base:Sub>A in fig. 15.

Description of the main element symbols:

100-a connecting structure; 110-a driving rotation member; 111-first grooving; 1111-a first inlet; 112-second grooving; 1121 — a second inlet; 120-passive rotating member; 121 — a first via; 122-a first boss; 123-mounting grooves; 124-third via; 130-a locking element; 131-a second via; 132-a second boss; 133-a limiting part; 134-anti-slip groove; 135-a top cover; 1351-holding part.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the embodiment of the present application provides a connection structure 100, which is mainly used for a rotating device, where the rotating device may be an electric fan, or an electric cutter or an electric drill. The coupling structure 100 includes an active rotating member 110, a passive rotating member 120, and a locking member 130.

As shown in fig. 4, the driving rotating member 110 is respectively provided with a first slot 111 and a second slot 112 which are communicated with each other, the first slot 111 is formed along an axial direction of the driving rotating member 110, and the second slot 112 is formed along a circumferential direction of the driving rotating member 110.

Referring to fig. 2, the axial direction of the driving rotary member 110 is the direction of the axis e, and the circumferential direction of the driving rotary member 110 is the circumferential direction of the driving rotary member 110 rotating along the axis e.

Referring to fig. 3 and 7, the passive rotating element 120 is provided with a first through hole 121 penetrating therethrough, the passive rotating element 120 is sleeved on the active rotating element 110, that is, the active rotating element 110 penetrates through the first through hole 121, a first protrusion 122 is extended from a hole wall of the first through hole 121 to an inner portion thereof, and the first protrusion 122 is clamped in the first open slot 111. Thus, the first protrusion and the first slot 111 are caused to interfere in the circumferential direction of the active rotary member 110, so that the passive rotary member 120 can follow the rotation of the active rotary member 110.

As shown in fig. 6, the locking member 130 is provided with a second through hole 131 penetrating therethrough, the locking member 130 is rotatably sleeved on the active rotating member 110 and abuts against the passive rotating member 120, and a second protrusion 132 is disposed on a wall of the second through hole 131 extending inward. When the locking member 130 rotates a predetermined angle relative to the passive rotating member 120, the second protrusion 132 is engaged with the second slot 112 to limit the axial movement of the passive rotating member 120 along the active rotating member 110. Thus, the passive rotating element 120 is prevented from generating axial displacement when rotating counterclockwise or clockwise following the active rotating element 110, and random rotation in both counterclockwise and clockwise directions can be realized.

In the connection structure 100 provided in the embodiment of the present application, the first open slot 111 and the second open slot 112 are formed in the active rotating member 110 and are communicated with each other, the passive rotating member 120 is sleeved on the active rotating member 110, the first protruding portion 122 on the passive rotating member 120 is clamped in the first open slot 111, and the locking member 130 is rotatably sleeved on the active rotating member 110 and abuts against the passive rotating member 120. When the locking member 130 rotates a predetermined angle relative to the passive rotating member 120, the second protrusion 132 is engaged with the second slot 112 to limit the passive rotating member 120 from moving along the axial direction of the active rotating member 110. Therefore, no matter the passive rotating element 120 is static or rotates clockwise or counterclockwise along with the rotating element, the passive rotating element cannot displace in the axial direction, so that the problem of loosening from the active rotating element 110 is avoided, and the reliability of the product is improved.

In addition, as can be seen from the drawings of the present application, the connecting structure 100 has a simple structure, is convenient to produce and manufacture, reduces the production cost of the product, and further improves the market competitiveness of the product.

It should be noted that, for example, the projections of the first slot 111 and the second slot 112 on the vertical plane are perpendicular to each other.

For example, the preset angle for the locking member 130 to rotate relative to the passive rotating member 120 may be 20 °, 25 °, 30 °, 32 °, 40 °, 45 °, 50 °, 60 °, and 70 °. Any one of angles of 80 °, 90 °, 110 °, 130 °, 150 ° and the like, in this embodiment, the preset angle is selected to be 45 °.

In some embodiments of the present application, optionally, one end of the first slot 111 near the driving rotation member 110 is provided with a first inlet 1111 for the first protrusion 122 to slide in, one end of the second slot 112 is provided with a second inlet 1121 communicated with the first slot 111, and the second inlet 1121 is used for the second protrusion 132 to slide in, as shown in fig. 5.

In this embodiment, when the passive rotating element 120 needs to be sleeved on the active rotating element 110, the first protrusion 122 slides into the first slot from the first inlet 1111, and then the passive rotating element 120 is pushed into the first slot 111 of the active rotating element 110 until the first protrusion is moved to an end of the first slot 111 away from the first inlet 1111. In this way, assembly of the passive rotating member 120 is facilitated. In addition, when the locking member 130 is assembled, the second protrusion 132 of the locking member 130 enters the first slot 111 from the first inlet 1111, and then when the locking member 130 is rotated, the second protrusion 132 slides into the second slot 112 from the second inlet 1121, so as to limit the axial movement of the locking member 130 along the driving rotating member 110, and thus limit the axial movement of the driven rotating member 120 along the driving rotating member 110.

As shown in fig. 5 and 7, in some embodiments of the present application, optionally, the thickness of the first protrusion 122 in the axial direction of the passive rotating element 120 is H, and the distance from the side of the second inlet 1121 far away from the first inlet 1111 to the end of the first slot 111 far away from the first inlet 1111 is H, so that H ≦ H is satisfied.

In this embodiment, taking the driving rotating member 110 as a cylinder, the cylindrical driving rotating member 110 is vertically disposed on a horizontal plane, and the thickness H of the first protruding portion 122 is set to be less than or equal to H, so as to prevent the second protruding portion 132 from entering the second slot 112 due to the over-thickness of the first protruding portion 122, thereby facilitating the assembling operation.

With reference to fig. 1, further, the length of the first protrusion 122 along the radial direction of the first through hole 121 is L, the depth of the first slot 111 is D, and L is equal to or less than D. Due to the design, the matching of the first protruding part 122 and the first slot 111 is more matched, and the contact area of the first protruding part 122 and the first slot 111 is increased.

It can be understood that, for example, the length of the second protrusion 132 along the radial direction of the second through hole 131 is S, and the depth of the second slot 112 is d, so that S ≦ d. This makes the second protrusion 132 fit with the second slot more closely, and increases the contact area between the second protrusion 132 and the second slot 112.

In any of the above embodiments of the present application, as shown in fig. 5, optionally, the first slot 111 is perpendicular to the second slot 112. That is, the projections of the first slot 111 and the second slot 112 on the vertical plane are perpendicular to each other. This facilitates rotation of the second projection 132 into the second slot 112 when the locking member 130 is rotated.

In other embodiments of the present application, as shown in fig. 8, optionally, a plurality of first protruding portions 122 are provided, the plurality of first protruding portions 122 are provided at intervals along a circumferential direction of the first through hole 121, the number of the first slots 111 is equal to the number of the first protruding portions 122, one second slot 112 is provided, and the second slot 112 is communicated with one of the plurality of first slots 111.

In the present embodiment, four first protruding portions 122 are provided, for example. Of course, in other embodiments, one, two, three, five, etc. first protrusions 122 may be provided.

It is understood that, in other embodiments, the first protrusion 122 may also be disposed in such a way that, if the first protrusion 122 is disposed in a plurality, the plurality of first protrusions 122 are disposed at intervals along the circumferential direction of the first through hole 121, the number of the first slots 111 is equal to the number of the first protrusions 122, the number of the second slots 112 is equal to the number of the first slots 111, the number of the second protrusions 132 is equal to the number of the second slots 112, and the plurality of second protrusions 132 are disposed at intervals along the circumferential direction of the second through hole 131.

As shown in fig. 9, 10 and 12, in the above embodiment, the locking member 130 may be further embedded into the passive rotating member 120, for example, an installation groove 123 is formed along the circumferential direction of the hole wall of the first through hole 121, and a third through hole 124 is formed at a part of the groove bottom of the installation groove 123.

As shown in fig. 11 and 13, the locking member 130 is inserted into the mounting groove 123 to abut against the passive rotating member 120, and the locking member 130 is provided with a limiting portion 133, the limiting portion 133 movably penetrates through the third through hole 124 and protrudes out of the outer surface of the passive rotating member 120, and the limiting portion 133 can move along the third through hole 124. Therefore, during the rotation, the passive rotating member 120 and the locking member 130 are sleeved on the active rotating member 110 together, and then the locking member 130 is rotated by a preset angle through the protruded limiting portion 133, so that the second protrusion portion 132 is clamped into the second slot 112, and the passive rotating member 120 is limited to move along the axial direction of the active rotating member 110, thereby avoiding the problem that the passive rotating member 120 is loosened from the active rotating member 110, and improving the reliability of the product.

Referring to fig. 14, in the case that the locking member 130 is a laminated structure, in some embodiments of the present application, the outer wall of the locking member 130 is optionally provided with a slip-proof groove 134. Such a design facilitates the holding of the locking member 130, and thus facilitates the pushing of the locking member 130 to rotate.

As shown in fig. 15 and 16, it is needless to say that a top cover 135 may be provided on the locking member 130 to facilitate the rotation of the locking member 130, the top cover 135 may be positioned at one end of the second through hole 131, and the top cover 135 may be provided with a grip portion 1351. The locking member 130 is rotated by twisting the grip portion 1351.

In any of the above embodiments of the present application, further, the second protrusion 132 is in interference fit with the second slot 112. Thus, when the second protrusion 132 is engaged with the second slot 112, the engagement between the second protrusion 132 and the second slot 112 is more compact, so as to avoid relative displacement, and further prevent the passive rotating element 120 from being displaced along the axial direction of the active rotating element 110.

Embodiments of the present application provide a rotating apparatus including the connection structure 100 described in any of the above embodiments.

For example, the rotating device may be an electric fan, the active rotating member 110 may be an output shaft of the electric fan, and the passive rotating member 120 may be a fan blade. Of course, the rotating means may also be a robot, such as a joint position of a robot.

The rotating apparatus provided in this embodiment has the connecting structure 100 in any of the above embodiments, and therefore, all the advantages of the connecting structure 100 are not described herein again.

In summary, the present application provides a connection structure 100 and a rotation device, in which the connection structure 100 is configured to form a first slot 111 and a second slot 112 on an active rotation element 110, the passive rotation element 120 is sleeved on the active rotation element 110, the first protrusion 122 on the passive rotation element 120 is clamped in the first slot 111, and then the locking element 130 is rotatably sleeved on the active rotation element 110 and abuts against the passive rotation element 120. When the locking member 130 rotates a predetermined angle relative to the passive rotating member 120, the second protrusion 132 is engaged with the second slot 112 to limit the passive rotating member 120 from moving along the axial direction of the active rotating member 110. Therefore, no matter the passive rotating part 120 is static, or rotates clockwise or anticlockwise along with the rotating part, the passive rotating part cannot generate displacement in the axial direction, so that the problem of loosening from the active rotating part 110 is avoided, and the reliability of the product is improved.

In addition, the driving rotating member 110, the driven rotating member 120 and the locking member 130 of the connecting structure 100 can be made of the same material, which has a simple structure, is convenient for production and manufacture, reduces the production cost, and is beneficial to the market competitiveness of the product.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A connecting structure, characterized in that the connecting structure comprises:

the driving rotating piece is provided with a first open slot and a second open slot which are communicated with each other, the first open slot is formed along the axial direction of the driving rotating piece, and the second open slot is formed along the circumferential direction of the driving rotating piece;

the driven rotating piece is provided with a first through hole penetrating through the driven rotating piece, the driven rotating piece is sleeved on the driving rotating piece, a first protruding part extends towards the inside of the driven rotating piece from the hole wall of the first through hole, and the first protruding part is clamped in the first open groove;

the locking piece is provided with a second through hole penetrating through the locking piece, the locking piece is rotationally sleeved on the active rotating piece and abutted against the passive rotating piece, a second protruding part extends towards the inner part of the hole wall of the second through hole, and when the locking piece is opposite to the passive rotating piece and rotates for a preset angle, the second protruding part is clamped in the second groove to limit the passive rotating piece to move axially along the active rotating piece.

2. The connecting structure according to claim 1, wherein an end of the first slot close to the driving rotation member is provided with a first inlet for the first boss to slide in, and an end of the second slot is provided with a second inlet communicated with the first slot for the second boss to slide in.

3. The connecting structure according to claim 2, wherein the thickness of the first protruding portion in the axial direction of the driven rotating member is H, the distance from the side of the second inlet away from the first inlet to the end of the first open groove away from the first inlet is H, and H is equal to or less than H.

4. The connecting structure according to claim 1, wherein the length of the first protruding portion in the radial direction of the first through hole is L, the depth of the first groove is D, and L ≦ D is satisfied; and/or the length of the second bulge along the radial direction of the second through hole is S, the depth of the second groove is d, and the condition that S is less than or equal to d is met.

5. The connecting structure according to any one of claims 1 to 4, wherein the first slot is perpendicular to the second slot.

6. The connecting structure according to any one of claims 1 to 4, wherein a plurality of the first protruding portions are provided, the plurality of first protruding portions are provided at intervals in a circumferential direction of the first through hole, the number of the first slots is equal to the number of the first protruding portions, the second slot is provided with one, and the second slot is communicated with one of the plurality of first slots; or the first bulge is provided with a plurality of, and is a plurality of the first bulge is followed the circumference interval setting of first through-hole, first grooved quantity with the quantity of first bulge equals, the grooved quantity of second with first grooved quantity equals, the quantity of second bulge equals the grooved quantity of second, and is a plurality of the second bulge is followed the circumference interval setting of second through-hole.

7. The connecting structure according to any one of claims 1 to 4, wherein an installation groove is formed along a circumferential direction of a wall of the first through hole, and a third through hole is formed at a part of a groove bottom of the installation groove;

the locking piece is embedded into the mounting groove and is abutted against the driven rotating piece, a limiting part is arranged on the locking piece, the limiting part movably penetrates through the third through hole and protrudes out of the outer surface of the driven rotating piece, and the limiting part can move along the third through hole.

8. A connection according to any one of claims 1 to 4, wherein the outer wall of the locking element is provided with a non-slip groove; and/or a top cover is arranged on the locking piece, the top cover is positioned at one end of the second through hole, and a holding part is arranged on the top cover.

9. The connection structure according to any one of claims 1 to 4, wherein the second boss is interference-fitted with the second groove.

10. A swivel arrangement, characterized by comprising a connection according to any one of claims 1-9.

Images