CN210535958U

CN210535958U - Rotary connection structure, power supply device and sofa

Info

Publication number: CN210535958U
Application number: CN201921661935.9U
Authority: CN
Inventors: 梁德新; 向啟平
Original assignee: Huizhou Zhongbang Electronics Co ltd
Current assignee: Huizhou Zhongbang Electronics Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-05-15
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a connect structure, power supply unit and sofa soon, including fixing base and connect the plug soon, the fixing base includes installed part and rotating member, and the installed part includes sleeve, spacing knot and side convex part, the spacing knot sets up on the tip of sleeve, and the side convex part sets up on the lateral wall of sleeve, set up the locking groove on the inside wall of sleeve; connect the plug soon and be provided with rotatory locking plate, connect the plug soon be used for inserting extremely in the sleeve, rotatory locking plate rotate set up in the locking groove, and connect the plug soon be used for with the connector is connected. The utility model relates to a revolve and connect structure, power supply unit and sofa, through setting up the rotation of the plug of revolving in the structure in the fixing base, on the one hand can firmly install power supply unit in the power input interface of the consumer, improve the stability of mutual electric connection; on the other hand, can also conveniently realize dismantling and installing, conveniently assemble, improve the production efficiency of product.

Description

Rotary connection structure, power supply device and sofa

Technical Field

The utility model relates to a power supply unit field especially relates to a connect structure, power supply unit and sofa soon.

Background

At some power consumption products, for example intelligent household electrical appliances, automotive electronics or other electronic appliances etc. can all use power supply unit, especially on electronic sofa, when need supply power on the power consumption product, then can cup joint power supply unit in the power input interface of power consumption product to can make power supply unit supply power for the power consumption product, and then realize the function of power consumption product self.

However, in the existing electric product, the plug of the power supply device is usually directly inserted into the power input interface of the electric product, such a connection manner on one hand makes the plug of the power supply device not be firmly installed in the power input interface of the electric product, and on the other hand, the existing power supply device is inconvenient to detach and install on the electric product, which increases the difficulty of detachment and reduces the production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art and providing a screwing structure, a power supply device and a sofa, on one hand, the power supply device can be firmly installed in the power input interface of an electric product, and the stability of mutual electric connection is improved; on the other hand, can also conveniently realize dismantling and installing, conveniently assemble, improve the production efficiency of product.

The purpose of the utility model is realized through the following technical scheme:

a twist-on structure comprising:

the fixing seat comprises a mounting piece and a rotating piece, the mounting piece comprises a sleeve, a limiting buckle and a side protrusion, the limiting buckle is arranged on the end part of the sleeve, the side protrusion is arranged on the side wall of the sleeve, and a locking groove is formed in the inner side wall of the sleeve; the rotary piece comprises a connector and a rotary cover, the connector is arranged in the rotary cover, an arc-shaped groove is formed in the end part of the rotary cover, a rotary groove is formed in the side wall of the rotary cover, two bayonets are respectively formed in the two ends, located at the rotary groove, of the rotary cover, the rotary cover is sleeved with the sleeve, the limit buckle is rotatably arranged in the arc-shaped groove, the side convex part is rotatably arranged in the rotary groove, and the side convex part can be locked in the bayonet; and

connect the plug soon, connect the plug soon and be provided with rotatory locking plate, connect the plug soon be used for inserting extremely in the sleeve, rotatory locking plate rotate set up in the locking groove, and connect the plug soon be used for with the connector is connected.

In one embodiment, a slot is arranged on the rotary plug, a contact pin is arranged on the connector, and the contact pin is used for being inserted into the slot so as to enable the rotary plug to be electrically connected with the connector; or

The rotary plug is provided with a contact pin, the connecting head is provided with a slot, and the contact pin is used for being inserted into the slot so that the rotary plug is electrically connected with the connecting head.

In one embodiment, the pins comprise at least two profiled pins;

the special-shaped contact pin is a square cylindrical contact pin or a cylindrical contact pin.

In one embodiment, a convex column is arranged on the rotary connector, a groove is arranged on the connector, and the convex column is used for being embedded into the groove; or

The rotary plug is provided with a groove, the connector is provided with a convex column, and the convex column is embedded into the groove.

In one embodiment, the number of the rotating locking pieces is multiple, the number of the locking grooves is multiple, and each rotating locking piece is rotatably arranged in each locking groove in a one-to-one correspondence manner.

In one embodiment, the plurality of said rotation locking tabs is embodied as a plurality of profiled rotation locking tabs.

In one embodiment, the sleeve is provided with a locking groove, the locking groove is communicated with the sliding groove, and the rotating lock plate is used for sliding along the sliding groove so as to slide the rotating lock plate into the locking groove.

In one embodiment, one end of the arc-shaped groove is aligned with one of the bayonets, and the other end of the arc-shaped groove is aligned with the other bayonet.

The utility model discloses still a power supply unit, including above arbitrary connect the structure soon, still include the battery package, the battery package with connect plug connection soon.

The utility model also provides a sofa, including above power supply unit, still include the sofa body, the fixing base install in on the sofa body, with the battery package is connected the plug is used for inserting soon in the fixing base.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a revolve and connect structure, power supply unit and sofa, through setting up the rotation of the plug of revolving in the structure in the fixing base, on the one hand can firmly install power supply unit in the power input interface of the consumer, improve the stability of mutual electric connection; on the other hand, can also conveniently realize dismantling and installing, conveniently assemble, improve the production efficiency of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a screw connection structure according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the fixing base shown in FIG. 1;

FIG. 3 is a schematic structural view of a mounting member of the fixing base shown in FIG. 2;

FIG. 4 is a schematic structural view of a rotating member of the fixing base shown in FIG. 2;

FIG. 5 is a schematic view of the rotating member shown in FIG. 4 from another perspective;

FIG. 6 is a schematic view of the internal structure of the fixing base shown in FIG. 2;

FIG. 7 is a schematic view of the fixing base shown in FIG. 2 from another perspective;

FIG. 8 is a schematic structural view of the fixing base shown in FIG. 2 from another view angle;

FIG. 9 is a schematic view of the fixing base shown in FIG. 2;

FIG. 10 is a schematic view of the twist-on plug of the twist-on structure shown in FIG. 1;

fig. 11 is a schematic structural view of the connecting head of the fixing base shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a screw structure includes: a fixed seat 100 and a screw plug 200. The fixing base 100 is used for mounting a screw plug 200, and the screw plug 200 is used for being fixed on an external power supply device.

Referring to fig. 2, a fixing base 100, particularly to a fixing base installed on a sofa. The fixing base 100 includes a mounting member 110 and a rotating member 120. It should be noted that the mounting member 110 is used to be fixed to an external product, such as an intelligent household appliance, an automotive electronic product or other electronic appliances, and in the present invention, it is preferable that the mounting member 110 is fixed to a sofa, i.e., an electric sofa that needs electricity. The rotating member 120 is used for being rotatably sleeved outside the mounting member 110, specifically, the rotating member 120 may be sleeved on the mounting member 110, and on the other hand, the rotating member 120 may be used for mounting or clamping a connection wire, and more importantly, when an external power supply device needs to be mounted, as long as the external power supply device is inserted on the connection wire, the electrical connection of a product may be achieved.

In another embodiment, after the external power source equipment is inserted into the mounting member 110, the external power source equipment is abutted against the rotating member 120, meanwhile, the external power source equipment is also electrically connected with the connecting wire, in order to more firmly mount the power source equipment, the power source equipment can be rotated, so that the power source equipment is clamped on the mounting member 110, meanwhile, the rotating member 120 abutted against the power source equipment is also driven, and is limited by the mounting member 110 after being rotated, so that the power source equipment is fixed on the mounting member 110, the mounting member 110 is clamped with the rotating member 120 in a limiting manner, double fixation is realized, the mounting member 110 and the rotating member 120 are firmer, the external power source equipment is also firmer, and the structural stability of the whole product is improved.

Referring to fig. 3, the mounting member includes a sleeve 111, a limit buckle 112 and a side protrusion 113, the limit buckle 112 is disposed on an end of the sleeve 111, the side protrusion 113 is disposed on a side wall of the sleeve 111, and a locking groove 111a is formed on an inner side wall of the sleeve 111.

It should be noted that the sleeve 111 is used for connecting the rotating member 120 and an external power supply device, and can also fix the limit buckle 112 and the side protrusion 113; the limit buckle 112 is used for penetrating and buckling on the rotating piece, so that the rotating piece 120 can only rotate at a certain angle and cannot exceed the range; the side protrusions 113 are used for realizing the limit of the rotating member 120 with the limit buckles 112, and further limiting the rotation angle and the position of the rotating member. The locking groove 111a is used for installing the screw plug 200, and plays a role in limiting and fixing.

Referring to fig. 4 and 5, the rotating member 120 includes a connector 121 and a screw cap 122, the connector 121 is disposed in the screw cap 122, an arc-shaped groove 122a is formed at an end of the screw cap 122, a rotating groove 122b is formed on a side wall of the screw cap 122, and two bayonets 122c are respectively formed at two ends of the screw cap 122, which are located at the rotating groove 122 b.

It should be noted that the connector 121 is used for installing an external wiring; the screw cap 122 is sleeved outside the sleeve 111, so as to facilitate rotation on the sleeve 111. The arc-shaped groove 122a is used for limiting with the limit buckle 112, that is, the limit buckle 112 can only rotate in the arc-shaped groove 122a, so that excessive rotation can be avoided, a main function is achieved, and the structure of the spiral cover 122 is damaged, so that the service life of the rotating part 120 can be prolonged, and the stability of the whole fixed seat is improved; the rotating groove 122b is used for limiting the side convex part 113, so that the side convex part 113 can rotate in the rotating groove 122b when the screw cap 120 rotates; the bayonet 122c is used for fixing the position of the side protrusion 113, that is, the two buckles respectively fix the position of the two side protrusions 113, when the side protrusion 113 rotates to one of the buckles, the side protrusion enters the final or initial position, on one hand, a rotating user can be given a rotating hand feeling, that is, the rotation reaches a fixed position, the user is reminded that the side protrusion can not rotate any more, on the other hand, the rotating angle can be limited, and the rotation is further avoided due to the limiting effect of the arc-shaped groove 122a and the limit buckle 112, so that the stability of the whole fixing seat is improved.

Referring to fig. 2 and 6, the screw cap 122 is sleeved with the sleeve 111, the limit buckle 112 is rotatably disposed in the arc-shaped groove 122a, the side protrusion 113 is rotatably disposed in the rotating groove 122b, and the side protrusion 113 can be further locked in the bayonet 122 a;

it should be noted that, the screw cap 122 rotates on the sleeve 111, and is limited by the limit button 112 and the arc-shaped groove 122a, so that the screw cap 122 is ensured to rotate only at one angle, and the side protrusions 113 rotate in the rotating groove 122b, and the main function of the screw cap is to be capable of being clamped in the bayonets 122c at the two ends of the rotating groove 122b, after the side protrusions 113 rotate into the bayonets 122c, the screw cap has rotated to the maximum position, so that the user is prompted to stop rotating, the safety of the screw cap is ensured, and the excessive rotation is avoided, and the structure of the screw cap is prevented from being damaged. Due to the limit effect of the limit buckle 112 and the arc-shaped groove 122a, further rotation can be avoided, and the safety and reliability of the screw cap are further improved.

It should be further noted that two of the bayonets 122c are respectively disposed on two sides of the rotating groove 122b, wherein one of the bayonets 122c is a starting end when the mounting member 110 rotates, and the other one of the bayonets 122c is an ending end when the mounting member 110 rotates, so that it is also noted that only one of the side protrusions is a locking bayonet, and the other one is a starting end or an ending end. That is, the two bayonets 122c limit the rotation angle and the range of the side protrusions 113, so that the structure of the permanent seat is not damaged due to over-rotation during rotation, and the structural stability and the safety of the permanent seat are improved. In addition, the beginning of the bayonet socket of starting from the arc-shaped groove is the same, when rotating, because the limit buckle 112 is limited in the arc-shaped groove internal rotation, consequently, also can further limit the rotation angle of installed part and rotating member, guaranteed the stability of structure.

So, it is spacing through setting up arc wall 122a and spacing knot 112 cooperation, can also utilize the limiting displacement of side convex part 113 and rotatory groove 122b simultaneously, it only rotates on certain angle to have guaranteed the spiral cover, and through setting up the structure that side convex part 113 and bayonet socket 122c are fixed mutually, can guarantee that connection structure is more firm, more stable, and when the fixing base has power supply unit and uses the electric product to carry out the electricity and connect, then can guarantee that the bad condition of contact can not appear in its connection, thereby can improve the stability of being connected with the electric product electricity, guarantee can be for the power supply that the electric product can be normal, with the work that the consumer can be normal.

Referring to fig. 2 and 3, the number of the limit fasteners 112 is multiple, the number of the arc-shaped grooves 122a is multiple, and each limit fastener 112 is rotatably disposed in each arc-shaped groove 122a in a one-to-one correspondence manner. Thus, the reliability can be further improved by arranging a plurality of limit buckles 112 and a plurality of arc-shaped grooves 122a for matching.

In this embodiment, the number of the position-limiting buckles is two, and the two position-limiting buckles are different in structural size, one is larger and the other is smaller, so that the rotating groove is required to be set to different widths to ensure more stable rotation. And through setting for two spacing buckles different in size, then can be so that when installation rotating member 120, play certain fool-proof effect, avoid the condition that the dislocation appears in the installation of two spacing buckles, and then make things convenient for the installation of follow-up structure, improved installation and assembly efficiency.

Referring to fig. 2 and 4, the side protrusions 113 are provided in plural, the rotation grooves 122b are provided in plural, the bayonet 122c is twice as many as the rotation grooves 122b, and each of the side protrusions 113 is rotatably disposed in each of the rotation grooves 122b in a one-to-one correspondence manner. So, cooperate with a plurality of rotatory grooves 122b, a plurality of bayonet socket 122c respectively through setting up a plurality of side convex parts 113, further conveniently rotate to and the location after the rotation is fixed, further guarantee the security of spiral cover, avoid appearing excessive rotation.

In this embodiment, the number of the position-limiting buckles 112 is two, the number of the arc-shaped grooves 122a is two, and the two position-limiting buckles 112 are rotatably disposed in the two arc-shaped grooves 122a in a one-to-one correspondence manner. Therefore, the rotary reliability and the limiting effect can be effectively ensured, and the cost can be controlled under a lower condition.

In this embodiment, the number of the side protrusions 113 is two, the number of the rotation grooves 122b is two, the number of the bayonets 122c is four, and the two side protrusions 113 are rotatably disposed in the two rotation grooves 122b in a one-to-one correspondence manner. So, through setting up two side convex parts 113 and two rotatory grooves 122b, conveniently realize whole rotation to through setting up the bayonet socket, when side convex part 113 changes over into the bayonet socket, then can increase the feeling when rotatory, conveniently carry out the control of rotatory dynamics.

The rotation angle of the limit buckle is 0-90 degrees; the rotation angle of the side protrusions is 0-90 degrees, the side protrusions are locked in one of the card openings, the rotation angle of the side protrusions is 0 degree, the side protrusions are locked in the other card openings, and the rotation angle of the side protrusions is 90 degrees. Therefore, the rotation angle of 0-90 degrees is set, so that the rotation of the rotating piece can be controlled, the rotation amplitude cannot be exceeded, and clamping and avoiding are effectively realized.

Referring to fig. 4 and 5, a deformation portion 123 is disposed between the rotation groove 122b and the bayonet 122c of the screw cap 122, and the deformation portion 123 is used for being deformed by force when the lateral protrusion enters or leaves the bayonet. In this way, the deformation part 123 between the rotation groove 122b and the bayonet 122c is easy to receive the rotation force when the side protrusion 113 slides, so that the contact part between the deformation part 123 and the side protrusion 113 is deformed to a certain extent, and after the deformation, the side protrusion 113 can smoothly enter the bayonet 122c, and then the side protrusion 113 can be limited, i.e. the side protrusion 113 is prevented from rotating backwards, thereby ensuring the structural stability of the entire fixing base. In addition, when the side protrusion 113 is pressed on the outer surface of the deformation part 123, a convex hand feeling is generated during rotation, and after a user feels the hand feeling, the rotating force can be changed, so that the side protrusion plays a certain role in identifying the user, and the control of the rotating force is facilitated.

Referring to fig. 4, an avoiding groove 122d is formed on an inner side wall of the screw cap 122, and the side protrusions 113 are configured to slide along the avoiding groove 122d, so that the side protrusions 113 slide into the bayonet 122 c. So, keep away a groove 122d through the setting, can conveniently install rotating member 120, reduce the time of installation, and then improve production efficiency.

Referring to fig. 6 and 7, the fixing base 100 further includes a wire base 130, the wire base 130 is provided with a slot 131, and the slot 131 is provided with an embedding portion 132. It should be noted that the wire holder 130 is used for fixing a connecting wire; the clamping groove 131 is used for clamping the connector 121; the embedding part 132 is used for fixing the wire holder on the connector.

Referring to fig. 6, the connector 121 is provided with a snap ring 121a, the snap ring 121a is provided with an embedding opening 121b, the wire holder 130 is sleeved with the connector 121, the snap ring 121a is clamped into the clamping groove 131, and the embedding portion 132 is embedded into the embedding opening 121 b. It should be noted that the snap ring 121a is used for being clamped in the clamping groove; the insertion opening 121b is used for mounting the insertion portion 132. So, through setting up snap ring 121a joint in draw-in groove 131 to set up embedding part 132 joint in embedding mouth 121b, can improve the fixed action to the line seat, and then improve the stability of structure.

Referring to fig. 3 and 8, the fixing base 100 further includes a protection cover 140, the mounting member 110 further includes a mounting plate 114, the mounting plate 114 is connected to the sleeve 111, and the protection cover 140 is clamped or screwed on the mounting plate 114. It should be noted that the protection cover 140 is used for protecting the rotating member and the mounting member, so as to prevent external cotton wool from entering the fixing seat structure, improve the structural stability of the fixing seat, ensure that the rotating member can effectively rotate, and further improve the service life.

Further, when the protection cover 140 is fastened to the mounting plate 114, a fastening portion may be disposed on the protection cover, and a fastening groove is disposed on the mounting plate 114, and the fastening portion is embedded in the fastening groove, so that a fastening effect may be achieved. When the protection cover 140 is screwed on the mounting plate 114, an internal thread can be arranged on the inner side wall of the protection cover, and an external thread bulge is arranged on the mounting plate, so that the internal thread of the protection cover is meshed with the external thread bulge on the mounting plate, the protection cover can be conveniently mounted and assembled, and the assembly efficiency is improved.

Referring to fig. 9, the fixing base 100 further includes a restoring elastic member 150, and the restoring elastic member 150 is connected to the sleeve 111 and the screw cap 122, respectively. Specifically, the elastic return element 150 is a torsion spring, the torsion spring is sleeved on the sleeve 111 and located between the sleeve 111 and the screw cap 122, one end of the torsion spring is mounted on the screw cap 122, and the other end of the torsion spring is mounted on the sidewall of the sleeve 111. So, can guarantee that the spiral cover has the function that resets, can not appear the spiral cover and be in a state of partly opening, guarantee that the spiral cover only can be in the most initial position, need not just twist the position that is done all at the spiral cover, just guarantee that the rotation of spiral cover must be in one of them buckle promptly to can avoid appearing the condition that power supply unit misplugging or anti-inserting, improve the security of installed part and rotating member.

It should be further noted that the elastic return element 150 is a spring, the spring is disposed between the sleeve 111 and the screw cap 122, a fixed end of the spring is disposed on the screw cap, and a return end of the spring is fixed on the sleeve. So, through setting up the spring structure, also can realize the reset function of spiral cover equally, avoid appearing the spiral cover rotation on half stroke, improved the security of structure.

Referring to fig. 1 and 10, the plug 200 is provided with a rotating locking plate 210, the plug 200 is inserted into the sleeve 111, the rotating locking plate 210 is rotatably disposed in the locking groove 111a, and the plug 200 is connected to the connector 121. It should be noted that the rotating locking piece 210 is used to lock the screw plug in the locking groove 111a, so that the whole screw plug can be fixed.

Therefore, in the whole operation, the plug 200 is directly inserted into the sleeve 111, and then the whole plug 200 is rotated, so that the rotating locking plate 210 is embedded in the locking groove 111a, and the plug 200 is fixed, that is, the plug 200 is mounted on the fixing base 100, on one hand, the power supply device can be firmly mounted in the power supply input interface of the electric product, and the stability of mutual electrical connection is improved; on the other hand, can also conveniently realize dismantling and installing, conveniently assemble, improve the production efficiency of product.

In one embodiment, referring to fig. 10 and 11, a socket 220 is disposed on the plug 200, and a pin 121c is disposed on the connector 121 and is used for being inserted into the socket 220, so that the plug 200 is electrically connected to the connector. It should be noted that the slot 220 is used for inserting the pin 121c, so that the electrical connection between the power supply device and the electric product can be realized.

In another embodiment, the plug 200 is provided with a pin, the connector is provided with a slot, and the pin is inserted into the slot to electrically connect the plug 200 with the connector. Specifically, since the plug and the connector are separate products, the setting positions of the socket and the pin are not limited herein, that is, the positions of the socket and the pin are set according to actual requirements, and in order to facilitate the plugging and installation, in this embodiment, the socket is disposed on the plug and the pin is disposed on the connector.

Referring to fig. 11, the pins include at least two profiled pins; it should be noted that the opposite PINs are large and small PIN PINs, and the special-shaped PINs are square cylindrical PINs or cylindrical PINs. Specifically, in the present embodiment, the large PIN is provided as a flat square PIN, and the small PIN is provided as a cylindrical structure. In actual products, the shape and size of the contact pin can be changed according to the use field of the electric products, and the contact pin is not limited in the use field, so long as the electric connection between the power supply device and the electric products can be realized. Further, through setting up two PIN needles that differ in size, can be so that install certain direction and angle and insert when the plug inserts soon, realized that the male slow-witted effect of preventing is improved the security of product.

Referring to fig. 10 and 11 again, in one embodiment, a groove 230 is disposed on the plug 200, and the connector 121 is provided with a protrusion 121d, wherein the protrusion 121d is configured to be inserted into the groove 230. It should be noted that, in order to realize preventing slow-witted effect of preventing reverse-connection, can also guarantee to insert simultaneously afterwards, connect the plug soon and can drive the rotating member and rotate, consequently, through set up recess 230 on connecting plug 200 soon, and set up in recess 230 complex projection 121d on connector 121, can be so that connect plug soon and play the effect of preventing slow-witted and preventing reverse-connection when inserting, after inserting, can rotate again and connect the plug soon and drive the connector and rotate, drive the rotating member promptly and rotate, whole easy operation, convenience, and quickness, the efficiency of installation and assembly has been improved. Meanwhile, when the plug is detached, the screwing plug is rotated reversely, and then the screwing plug can be taken down from the sleeve and the connector, so that the operation is also convenient.

In another embodiment, the screw plug 200 is provided with a convex column, the connector is provided with a groove, and the convex column is embedded into the groove. In this application to do not inject the settlement position of recess and projection, can set for according to actual demand, it can to cooperate the connector to drive the rotating member to rotate mainly to guarantee to connect the plug soon.

It should be noted that the number of the rotating lock pieces 210 is plural, the number of the locking grooves 111a is plural, and each rotating lock piece 210 is rotatably disposed in each locking groove 111a in a one-to-one correspondence manner. So, correspond respectively through setting up a plurality of rotating lock pieces 210 and insert in each locking groove 111a, can be so that the plug of connecing soon after inserting can fix on the fixing base to prevent slow-witted function when can also realizing inserting through setting up a plurality of rotating lock pieces 210, guarantee promptly to connect the plug soon and insert at certain angle and direction, the wrong problem of inserting or mistake male can not appear. In this embodiment, the number of the rotating locking pieces 210 is two, the number of the locking grooves 111a is two, and the two rotating locking pieces 210 are respectively and symmetrically arranged on the connecting head, so that the effects of preventing reverse connection and fool-proofing can be effectively realized.

Furthermore, in the whole screwing structure, a plurality of anti-reverse-connection fool-proof functions are arranged, namely, a plurality of fool-proof structures are set when the screwing plug is inserted, for example, a rotary locking plate and a sliding groove arranged on a sleeve are arranged on the screwing plug; a groove 230 is arranged on the screw plug 200, and a convex column 121d matched with the groove 230 is arranged on the connecting head 121; and still set up two dysmorphism contact PINs, and the PIN needle that big small structure differs, then also can realize preventing slow-witted function equally, through setting up the fool-proofing structure of three in one, direction and angle when can further injecing and insert, guarantee that the condition of wrong insertion can not appear when the user inserts the plug of connecing soon, when having improved the security of structure, can also conveniently install and dismantle.

It should be noted that the plurality of rotating locking plates 210 is specifically a plurality of special-shaped rotating locking plates. The special-shaped rotating locking plate can be set to a corresponding shape according to actual requirements, a plurality of special-shaped rotating locking plates can be set to a symmetrical structure such as a plum blossom-shaped structure, a bidirectional flange structure or a square plate, the actual shape of the rotating locking plate can be fixed in a clamping manner with an installation part only after the sleeve is inserted, and the fool-proof effect can be achieved.

Referring to fig. 3 and 11, the inner side wall of the sleeve 111 is further provided with a sliding groove 111b, the sliding groove is communicated with the locking groove 111a, and the rotating locking piece 210 is configured to slide along the sliding groove 111b, so that the rotating locking piece 210 slides into the locking groove 111 a. It should be noted that, the sliding groove 111b is used for conveniently inserting the rotating lock piece 210, and the sliding groove is communicated with the locking groove 111a, so that the rotating lock piece 210 can be ensured to enter the sleeve from the sliding groove 111b, and then the locking groove 111a can be cut into along the bottom of the sliding groove 111b, so that the rotating lock piece 210 and the sleeve 111 can be locked and fixed, and the installation and the fixation are convenient.

It should be noted that one end of the arc-shaped slot 122a is aligned with one of the bayonets 122c, and the other end of the arc-shaped slot 122a is aligned with the other bayonet 122 c. Specifically, set up two bayonets respectively on the both sides limit of swivelling chute to two bayonets are aligned with the initiating terminal and the termination end of arc wall respectively, thereby at the pivoted in-process, guarantee that side lug 113 is rotatory to enter into the bayonet socket after can not rotate again, prevent to rotate excessively, damage the structure of whole fixing base. That is, because the limit buckle 112 is inserted into the arc-shaped groove 122a, in the rotating process, the rotational acting force borne by the limit buckle 112 is far greater than the acting force borne by the side wall of the bayonet. Specifically, it can be imagined that, assuming that the retaining buckle 112 is not disposed in the arc-shaped groove 122a, in the rotating process, the side protrusion 113 rotates under the action of the rotation force, and can rapidly pass through the deformation portion 123 and enter the bayonet, and similarly, if the side protrusion 113 does not stop rotating, the side protrusion 113, like the extrusion deformation portion 123, extrudes the inner side wall of the bayonet, so that the inner side wall of the bayonet is deformed to a certain extent, and finally the side protrusion 113 slides over the inner side wall of the bayonet, resulting in the over-rotation. Just because be provided with spacing knot 112 in arc wall 122a to spacing effect is bigger in the time of can making rotatory, and is far more than when only having the bayonet socket, thereby can realize preventing the condition of excessive rotation, has improved the security and the reliability of structure.

Referring to fig. 1 and 10, the present invention further provides a power supply device, which includes any one of the above-mentioned screwing structures, and further includes a battery pack 10, wherein the battery pack 10 is connected to the screwing plug 200. The power supply device may be a power supply device having another structure as long as it can supply power to the electric product. The utility model also provides a sofa, including above power supply unit, still include the sofa body, fixing base 100 install in on the sofa body, with battery package 10 is connected connect plug 200 soon is used for inserting in fixing base 100.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A screw-on structure, comprising:

2. The screw connection structure according to claim 1, wherein a slot is provided on the screw plug, and a pin is provided on the connector for inserting into the slot to electrically connect the screw plug with the connector; or

3. The screw-on structure of claim 2, wherein the pins comprise at least two profiled pins;

4. The screw-on structure of claim 1, wherein the screw-on connector is provided with a convex column, the connector is provided with a groove, and the convex column is embedded in the groove; or

5. The screw-on structure of claim 1, wherein the number of the rotary locking pieces is plural, the number of the locking grooves is plural, and each rotary locking piece is rotatably disposed in each locking groove in a one-to-one correspondence.

6. The screw-on structure of claim 5, wherein the plurality of rotary locking tabs are embodied as a plurality of profiled rotary locking tabs.

7. The screw-on structure of claim 1, wherein the sleeve has a sliding groove formed in an inner side wall thereof, the sliding groove is communicated with the locking groove, and the rotating locking plate is configured to slide along the sliding groove, so that the rotating locking plate slides into the locking groove.

8. The twist-on construction of claim 1 wherein one end of said arcuate slot is aligned with one of said bayonets and the other end of said arcuate slot is aligned with the other of said bayonets.

9. A power supply device comprising the screw connection structure according to any one of claims 1 to 8, and further comprising a battery pack, wherein the battery pack is connected to the screw connection plug.

10. A sofa comprising the power supply device of claim 9, and further comprising a sofa body, wherein the fixing seat is mounted on the sofa body, and the plug connected with the battery pack is inserted into the fixing seat.