CN214542828U

CN214542828U - Multifunctional adapter

Info

Publication number: CN214542828U
Application number: CN202120146005.0U
Authority: CN
Inventors: 邢艳君; 凡胜; 陈云
Original assignee: Shenzhen Wanka Technology Co ltd
Current assignee: Shenzhen Wanka Technology Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-10-29
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a multifunctional adapter, include: an adapter body, a side surface of which is provided with a plurality of interfaces; an extension line provided at a rear side surface of the adapter body; the plug is arranged at the tail end of the extension line far away from the adapter body; a conversion element is arranged in the adapter main body and is electrically connected with the interface, and the conversion element is electrically connected with the plug through an extension line; the utility model discloses a multifunctional adapter, extension line are bow-shaped turn and extend to the position that does not hinder equipment to use and are connected with the adapter main body, make the plug more easily peg graft, and the bow-shaped turn of extension line makes equipment more clean and tidy convenient in the use simultaneously, and the arrangement is convenient, reduces and hinders; converting the Type c port of the required adapting device into an HDMI 4K interface, a DP 4K interface, a DVI interface and a VGA interface respectively through a conversion element in the adapter main body; and multi-type conversion is realized, and the compatibility of the multifunctional adapter is improved.

Description

Multifunctional adapter

Technical Field

The utility model relates to an adapter field, more specifically says, the utility model relates to a multifunctional adapter.

Background

The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances, can be an independent hardware interface device, allows the hardware or electronic interface to be connected with other hardware or electronic interfaces, and can also be an information interface. Such as: the power adapter, tripod base switching part, USB and serial ports's switching equipment etc.. Generally, the power supply comprises a shell, a power transformer and a rectifying circuit, and can be divided into an alternating current output type and a direct current output type according to the output type; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type.

When the existing adapter is used, the phenomenon that the adapter is inconvenient to use when in blocking and plugging is often generated, and the type of the conversion interface is limited, so that the multifunctional adapter which can convert various types of structures, is convenient to plug and arrange and has excellent heat dissipation is necessary to be provided.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

To at least partially solve the above problem, the present invention provides a multifunctional adapter, including:

an adapter body having a side surface provided with a plurality of interfaces;

an extension line disposed at a rear side surface of the adapter body;

a plug disposed at an end of the extension cord distal from the adapter body;

a conversion element is arranged in the adapter main body and electrically connected with the interface, and the conversion element is electrically connected with the plug through the extension line.

Preferably, the interface includes an HDMI 4K interface, a DP 4K interface, a DVI interface, and a VGA interface;

HDMI 4K interface DP 4K interface the VGA interface sets up the right side surface of adapter body, the VGA interface is located the leftmost end on right side surface, the HDMI 4K interface sets up the right-hand member of VGA interface, the DP 4K interface sets up the right-hand member of HDMI 4K interface, the DVI interface sets up the front side surface of adapter body, the HDMI 4K interface the DP 4K interface the DVI interface the VGA interface respectively with the converting element electricity is connected.

Preferably, the plug is a Type c plug.

Preferably, the light shell is arranged on the surface of the adapter main body and comprises a sleeve shell and a movable baffle plate, a notch matched with the movable baffle plate is formed in the front end of the sleeve shell, the sleeve shell is arranged on the surface of the adapter main body, and the movable baffle plate is arranged on the front side surface of the adapter main body and located at the notch.

Preferably, the rear side of the sleeve shell is provided with a round hole matched with the extension line, and the right side surface of the sleeve shell is provided with a first square hole matched with the HDMI 4K interface, the DP 4K interface and the VGA interface respectively.

Preferably, the surface of the movable baffle is provided with a second square hole matched with the DVI interface, and two sides of the second square hole are provided with screws in threaded connection with the adapter body.

Preferably, a holding piece is arranged at the joint of the plug and the extension line, and a soft rubber connecting sleeve is arranged at the joint of the holding piece and the extension line.

Preferably, the light shell is made of insulating heat-conducting plastic.

Preferably, plug grooves are respectively arranged on the outer sides of the HDMI 4K interface, the DP 4K interface, the DVI interface and the VGA interface, and each plug groove comprises an interface wall, a main body wall, a ring groove, a plug groove opening and a clamping groove;

the interface wall sets up the HDMI 4K interface the DP 4K interface the DVI interface the outside of VGA interface, stopper notch sets up the outside of interface wall, the main part wall sets up the outside of stopper notch, the annular sets up the inboard surface of main part wall, the draw-in groove sets up the outside surface of interface wall.

Preferably, the first square hole and the second square hole are provided with a blocking plug, and the blocking plug comprises a partition plate, a blocking plug body, a lock catch, a partition plate edge, a clamping ring, a buckling hole and a positioning edge;

the baffle sets up keep off the right side surface of stopper body, it is in to detain the hole setting keep off the left side surface of stopper body, detain the hole with interface wall cooperation and joint are in interface wall surface, the hasp sets up on the inner wall of the leftmost end in knot hole, the hasp joint is in the draw-in groove, the baffle is along setting up the circumference of baffle, the location is along setting up the outside surface of stopper body, the rand sets up the outside surface of stopper body just is located the right side on location edge, the rand joint is in the annular.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

in the multifunctional adapter of the utility model, the extension line is arched and extends to the position which does not obstruct the use of the equipment and is connected with the adapter main body, so that the plug is easier to be inserted, and the arched bending of the extension line makes the use of the equipment more neat and convenient, is convenient to arrange and reduces the obstruction; converting the Type c port of the required adapting device into an HDMI 4K interface, a DP 4K interface, a DVI interface and a VGA interface respectively through a conversion element in the adapter main body; and multi-type conversion is realized, and the compatibility of the multifunctional adapter is improved.

The present invention is directed to a multifunctional adapter, and other advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those skilled in the art upon examination of the following and may be learned by practice of the invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the multifunctional adapter of the present invention.

Fig. 2 is a schematic structural diagram of a light shell in the multifunctional adapter of the present invention.

Fig. 3 is a schematic structural diagram of a stopper in the multifunctional adapter of the present invention.

Fig. 4 is a schematic structural diagram of a plug slot in the multifunctional adapter of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-4, the utility model provides a multifunctional adapter, include:

an adapter body 1, a side surface of said adapter body 1 being provided with a plurality of interfaces 2;

an extension line 3, the extension line 3 being provided on a rear side surface of the adapter body 1;

a plug 6, the plug 6 being disposed at an end of the extension wire 3 remote from the adapter body 1;

a conversion element is arranged in the adapter body 1, the conversion element is electrically connected with the interface 2, and the conversion element is electrically connected with the plug 6 through the extension wire 3.

As shown in fig. 1, in one embodiment, the interface 2 includes an HDMI 4K interface 201, a DP 4K interface 202, a DVI interface 203, a VGA interface 204;

HDMI 4K interface 201 DP 4K interface 202 VGA interface 204 sets up adapter body 1's right flank surface, VGA interface 204 is located the leftmost end on right flank surface, HDMI 4K interface 201 sets up VGA interface 204's right-hand member, DP 4K interface 202 sets up HDMI 4K interface 201's right-hand member, DVI interface 203 sets up adapter body 1's front side surface, HDMI 4K interface 201 DP 4K interface 202 DVI interface 203 VGA interface 204 respectively with the converting element electricity is connected.

In one embodiment, as shown in fig. 1, the plug 6 is a Type c plug.

The working principle of the technical scheme is as follows: in the use process, the plug 6 adopts a Type c plug, the plug 6 is connected with a Type c port of equipment needing adapting, and the extension line 3 is bent and extended to a position which does not obstruct the use of the equipment after connection and is connected with the adapter main body 1; a plurality of interfaces 2 are arranged on the side surface of the adapter body 1, and the interfaces 2 comprise an HDMI 4K interface 201, a DP 4K interface 202, a DVI interface 203 and a VGA interface 204; a conversion element is arranged in the adapter body 1, the conversion element is respectively and electrically connected with the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204, the conversion element is electrically connected with the plug 6 through the extension wire 3, and the Type c port of the required adapting device is respectively converted into the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204 through the conversion element in the adapter body 1; and the multi-Type conversion from the Type c port to four ports including the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204 is realized.

The beneficial effects of the above technical scheme are that: through the design of the structure, the utility model provides a multifunctional adapter, the extension line 3 is bent and extended to the position which does not obstruct the use of the equipment and is connected with the adapter main body 1, so that the plug 6 is easier to be inserted, and meanwhile, the arc-shaped bending of the extension line 3 makes the use of the equipment more neat and convenient, is convenient to arrange and reduces the obstruction; the Type c port of the required adapting device is converted into an HDMI 4K interface 201, a DP 4K interface 202, a DVI interface 203 and a VGA interface 204 through a conversion element in the adapter body 1; and multi-type conversion is realized, and the compatibility of the multifunctional adapter is improved.

As shown in fig. 1-2, in an embodiment, a light-weight shell 4 is disposed on a surface of the adapter body 1, the light-weight shell 4 includes a socket shell 401 and a movable baffle 402, a slot matched with the movable baffle 402 is disposed at a front end of the socket shell 401, the socket shell 401 is disposed on the surface of the adapter body 1, and the movable baffle 402 is disposed on a front side surface of the adapter body 1 and located at the slot.

As shown in fig. 1-2, in an embodiment, a circular hole 404 matched with the extension line 3 is disposed at a rear side of the socket shell 401, and a first square hole 405 respectively matched with the HDMI 4K interface 201, the DP 4K interface 202, and the VGA interface 204 is disposed at a right side surface of the socket shell 401.

In one embodiment, the surface of the movable baffle 402 is provided with a second square hole 403 matched with the DVI interface 203, and two sides of the second square hole 403 are provided with screws in threaded connection with the adapter body 1.

As shown in fig. 1, in one embodiment, a holding member 5 is disposed at a connection position of the plug 6 and the extension line 3, and a soft glue connection sleeve is disposed at a connection position of the holding member 5 and the extension line 3.

In one embodiment, as shown in fig. 2, the lightweight housing 4 is made of insulating and thermally conductive plastic.

The working principle of the technical scheme is as follows: the surface of the adapter main body 1 is provided with a light shell 4, the light shell 4 comprises a sleeving shell 401 and a movable baffle 402, the light shell 4 can be disassembled and assembled through the sleeving shell 401 and the movable baffle 402, the front end of the sleeving shell 401 is provided with a notch matched with the movable baffle 402, the sleeving shell 401 is arranged on the surface of the adapter main body 1, and the movable baffle 402 is arranged on the front side surface of the adapter main body 1 and is positioned at the notch; in the disassembly process, the screws arranged at two sides of the second square hole 403 are disassembled, the movable baffle 402 is moved out from the notch at the front end of the sleeving shell 401, the sleeving shell 401 is separated from the adapter main body 1, disassembly is realized, and the adapter main body 1 can be inspected after disassembly; the right side surface of the sleeve-joint shell 401 is provided with a first square hole 405 respectively matched with the HDMI 4K interface 201, the DP 4K interface 202 and the VGA interface 204, the surface of the movable baffle 402 is provided with a second square hole 403 matched with the DVI interface 203, so that the light shell 4 remains an inserting position for the interface 2 while buffering and protecting the adapter main body 1, and during installation, the sleeve-joint shell 401 only needs to be sleeved to the adapter main body 1, the movable baffle 402 is pushed into a notch, and screws are tightened; plug 6 is provided with the gripping 5 with the junction of extension line 3, gripping 5 with the 3 junctions of extension line are provided with the flexible glue adapter sleeve, grip 5 with the hand during plug 6 pegs graft, the plug 6 and the equipment connection of being convenient for, flexible glue adapter sleeve protection gripping 5 and the 3 junctions of extension line prevent the crooked fracture that excessively causes, and light shell 4 adopts insulating thermal conductivity plastics, under the effect of guaranteeing good buffering protection, possesses light in weight, and the heat dissipation is good, insulating advantage.

The beneficial effects of the above technical scheme are that: through the design of the structure, the specific structures of the holding piece 5, the soft rubber connecting sleeve and the light shell 4 are provided in the embodiment, and the light shell 4 is quickly assembled and disassembled through the connecting sleeve shell 401 and the movable baffle 402, so that the adapter main body 1 can be conveniently inspected; first square hole 405 and second square hole 403, make light shell 4 give interface 2 surplus grafting position when carrying out the buffer protection to adapter main part 1, grip 5 with the hand during plug 6 of pegging graft, improve the degree of convenience of gripping of plug 6 and equipment connection in-process, flexible glue adapter sleeve protection grip 5 and extension line 3 junction, prevent the fracture that crooked too big caused, light shell 4 adopts insulating thermal conductivity plastics, under the effect of guaranteeing good buffer protection, it is light to possess weight, the heat dissipation is good, insulating advantage.

As shown in fig. 1 and 4, in one embodiment, plug grooves 8 are respectively disposed on outer sides of the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203, and the VGA interface 204, where the plug grooves 8 include an interface wall 801, a main body wall 802, a ring groove 803, a plug groove opening 804, and a card slot 805;

the interface wall 801 is disposed outside the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203, and the VGA interface 204, the socket 804 is disposed outside the interface wall 801, the body wall 802 is disposed outside the socket 804, the ring groove 803 is disposed on the inner surface of the body wall 802, and the card groove 805 is disposed on the outer surface of the interface wall 801.

As shown in fig. 1 to 4, in one embodiment, a stopper 7 is disposed at the first square hole 405 and the second square hole 403, where the stopper 7 includes a partition 703, a stopper body 701, a lock 707, a partition edge 704, a collar 705, a buckle hole 702, and a positioning edge 706;

baffle 703 sets up the right side surface of keeping off stopper body 701, detain the hole 702 and set up the left side surface of keeping off stopper body 701, detain the hole 702 with interface wall 801 matches and the joint is in interface wall 801 surface, hasp 707 sets up on the inner wall of the leftmost end of detaining hole 702, hasp 707 joint is in the draw-in groove 805, the baffle sets up along 704 the circumference of baffle 703, the location sets up along 706 the outside surface of keeping off stopper body 701, rand 705 sets up the outside surface of keeping off stopper body 701 and being located the location is along the right side of 706, rand 705 joint is in the annular groove 803.

The working principle of the technical scheme is as follows: plug grooves 8 are respectively formed in the outer sides of the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204, blocking plugs 7 are arranged at the positions of the first square hole 405 and the second square hole 403, and the plug grooves 8 are matched with the blocking plugs 7, so that the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204 are protected and prevented from dust when the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204 are idle, damage caused by sundries entering the interface 2 is avoided, and potential safety hazards are increased; the plug groove 8 comprises an interface wall 801, a main body wall 802, a ring groove 803, a plug groove opening 804 and a clamping groove 805; the interface wall 801 is arranged on the outer side of the HDMI 4K interface 201, the DP 4K interface 202, the DVI interface 203 and the VGA interface 204, the plug groove port 804 is arranged on the outer side of the interface wall 801, the main body wall 802 is arranged on the outer side of the plug groove port 804, the ring groove 803 is arranged on the inner side surface of the main body wall 802, and the card slot 805 is arranged on the outer side surface of the interface wall 801; the stop plug 7 comprises a partition 703, a stop plug body 701, a lock 707, a partition edge 704, a collar 705, a lock hole 702 and a positioning edge 706; the baffle 703 is arranged on the right side surface of the stopper body 701, the fastening hole 702 is arranged on the left side surface of the stopper body 701, the fastening hole 702 is matched with the interface wall 801 and is clamped on the surface of the interface wall 801, the fastener 707 is arranged on the inner wall of the leftmost end of the fastening hole 702, the fastener 707 is clamped in the clamping groove 805, the baffle edge 704 is arranged in the circumferential direction of the baffle 703, the positioning edge 706 is arranged on the outer side surface of the stopper body 701, the collar 705 is arranged on the outer side surface of the stopper body 701 and is positioned on the right side of the positioning edge 706, and the collar 705 is clamped in the annular groove 803; in the use process of the plug groove 8 and the stopper 7, the buckling hole 702 is aligned to the interface wall 801 to be buckled, in the buckling process, the clamping ring 705 is clamped in the annular groove 803 on the main body wall 802 to realize the first-step positioning and fixing of the stopper 7, the clamping ring 707 is clamped in the clamping groove 805 to realize the second-step fixing and locking of the stopper 7, the stable connection of the stopper 7 and the plug groove 8 is ensured, the partition plate is arranged in the circumferential direction of the partition plate 703 along 704, in the disassembling process, the partition plate is clamped by fingers along 704 to exert force outwards, the stopper 7 can be separated from the plug groove 8, and the disassembly of the stopper 7 is facilitated.

The beneficial effects of the above technical scheme are that: through the design of the structure, the specific structure of the plug groove 8 and the stopper 7 is provided in this embodiment, the collar 705 is clamped in the ring groove 803 on the main body wall 802 to realize the first-step positioning and fixing of the stopper 7, the lock catch 707 is clamped in the clamp groove 805 to realize the second-step fixing and locking of the stopper 7, the stable connection of the stopper 7 and the plug groove 8 is ensured, the partition plate edge 704 is arranged in the circumferential direction of the partition plate 703, and in the dismounting process, the stopper 7 can be separated from the plug groove 8 by clamping the partition plate edge 704 with fingers to exert outward force, so that the stopper 7 can be dismounted conveniently; detain hole 702 and interface wall 801 and cooperate, guarantee to keep off the accuracy of stopper 7 mounted position, groove 8 cooperatees with fender stopper 7, realize when HDMI 4K interface 201, DP 4K interface 202, DVI interface 203, VGA interface 204 are idle, to HDMI 4K interface 201, DP 4K interface 202, DVI interface 203, VGA interface 204's protection and dustproof, avoid debris to cause the damage in getting into interface 2, increase the potential safety hazard.

In the description of the present invention, 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, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. A multifunction adapter, comprising:

an adapter body (1), a side surface of the adapter body (1) being provided with a plurality of interfaces (2);

an extension cord (3), the extension cord (3) being provided on a rear side surface of the adapter body (1);

a plug (6), the plug (6) being arranged at the end of the extension wire (3) remote from the adapter body (1);

a conversion element is arranged in the adapter main body (1), the conversion element is electrically connected with the interface (2), and the conversion element is electrically connected with the plug (6) through the extension wire (3);

the interface (2) comprises an HDMI 4K interface (201), a DP 4K interface (202), a DVI interface (203) and a VGA interface (204);

the HDMI 4K interface (201), the DP 4K interface (202), the VGA interface (204) are arranged on the right side surface of the adapter body (1), the VGA interface (204) is located at the leftmost end of the right side surface, the HDMI 4K interface (201) is arranged at the right end of the VGA interface (204), the DP 4K interface (202) is arranged at the right end of the HDMI 4K interface (201), the DVI interface (203) is arranged on the front side surface of the adapter body (1), and the HDMI 4K interface (201), the DP 4K interface (202), the DVI interface (203), and the VGA interface (204) are respectively electrically connected with the conversion element;

the surface of the adapter main body (1) is provided with a light shell (4), the light shell (4) comprises a sleeving shell (401) and a movable baffle (402), the front end of the sleeving shell (401) is provided with a notch matched with the movable baffle (402), the sleeving shell (401) is arranged on the surface of the adapter main body (1), and the movable baffle (402) is arranged on the front side surface of the adapter main body (1) and is positioned at the notch;

the surface of the movable baffle (402) is provided with a second square hole (403) matched with the DVI interface (203), and screws in threaded connection with the adapter main body (1) are arranged on two sides of the second square hole (403).

2. Multifunction adapter according to claim 1, characterized in that said plug (6) is a Type c plug.

3. The multifunctional adapter according to claim 1, wherein a circular hole (404) matched with the extension line (3) is formed in the rear side of the socket shell (401), and a first square hole (405) matched with the HDMI 4K interface (201), the DP 4K interface (202) and the VGA interface (204) is formed in the right side surface of the socket shell (401).

4. The multifunctional adapter according to claim 1, characterized in that a holding piece (5) is arranged at the joint of the plug (6) and the extension line (3), and a soft glue connecting sleeve is arranged at the joint of the holding piece (5) and the extension line (3).

5. Multifunction adapter according to claim 1, characterized in that the lightweight housing (4) is of an insulating and thermally conductive plastic.

6. The multifunctional adapter according to claim 3, characterized in that plug grooves (8) are respectively arranged on the outer sides of the HDMI 4K interface (201), the DP 4K interface (202), the DVI interface (203) and the VGA interface (204), and each plug groove (8) comprises an interface wall (801), a main body wall (802), an annular groove (803), a plug groove opening (804) and a card slot (805);

the interface wall (801) sets up HDMI 4K interface (201), DP 4K interface (202) DVI interface (203) the outside of VGA interface (204), stopper notch (804) set up the outside of interface wall (801), main part wall (802) set up the outside of stopper notch (804), annular groove (803) set up the inboard surface of main part wall (802), draw-in groove (805) set up the outside surface of interface wall (801).

7. The multifunctional adapter according to claim 6, wherein a stopper (7) is arranged at the first square hole (405) and the second square hole (403), and the stopper (7) comprises a partition plate (703), a stopper body (701), a lock catch (707), a partition plate edge (704), a collar (705), a buckle hole (702) and a positioning edge (706);

baffle (703) set up keep off the right side surface of stopper body (701), detain hole (702) and set up keep off the left side surface of stopper body (701), detain hole (702) with interface wall (801) match and the joint is in interface wall (801) surface, hasp (707) set up on the inner wall of the leftmost end of detaining hole (702), hasp (707) joint is in draw-in groove (805), the baffle is along (704) setting up the circumference of baffle (703), the location is along (706) setting up the outside surface of stopper body (701), rand (705) set up keep off the outside surface of stopper body (701) and be located the location is along the right side of (706), rand (705) joint is in annular groove (803).