CN202749542U

CN202749542U - Dipolar multipurpose plug bush of power supply socket

Info

Publication number: CN202749542U
Application number: CN 201220392795
Authority: CN
Inventors: 何志国; 刘远方; 漆良涛; 陈万林; 林忠杰; 尹建明
Original assignee: Zhejiang Chint Building Electrics Co Ltd
Current assignee: Zhejiang Chint Building Electrics Co Ltd
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2013-02-20
Anticipated expiration: 2022-08-09

Abstract

The utility model discloses a dipolar multipurpose plug bush of a power supply socket. A bush body is encircled into a hollow frame shape by sequentially connecting a head section, a first elastic fulcrum section, a first middle section, a second middle section and a tail end, and an opening is formed between the head section and the tail section; and the head section is provided with a flat surface and a vertical flanging, wherein the flat surface is used for inserting and connecting a plug pin and faces the inner side of the frame shape, the vertical flanging is used for guiding the inserting, the vertical flanging is folded towards the outer side of the frame shape and stretches along the oblique upper position of the frame shape, the first middle section is provided with a first horizontal flanging which is folded towards the inner side of the frame shape and stretches along the right lower position of the frame shape, the tail section is provided with a second horizontal flanging which is folded towards the inner side of the frame shape and stretches along the left lower position of the frame shape, the first horizontal flanging and the second horizontal flanging are symmetrically arranged, the first horizontal flanging and the second horizontal flanging are symmetrically provided with flat surfaces which are used for inserting and connecting plug pins in other shapes, and one flat surface of one horizontal flanging faces the other horizontal flanging. According to the dipolar multipurpose plug bush disclosed by the utility model, not only is an insertion and extraction force moderate, is the hand feeling comfortable and is the versatility good, but also the contact area is large, the conducting performance is good, the structure is simple, the assembly is convenient, and the cost is low.

Description

The multiplex sleeve in the two poles of the earth of supply socket

Technical field

The utility model relates to the supply socket field, is specifically related to consist of the sleeve of socket, particularly the two poles of the earth (the phase line L utmost point of power supply and the center line N utmost point) double-purpose or the multiplex sleeve of the insertion of the latch of the plug of the compatible number of different types of a kind of energy.

Background technology

Along with further popularizing of appliance applications, the consumer requires more and more higher to the insertion of socket and the feel of extracting.The flange moulding of the sleeve of in the market being seen supply socket all is the moulding of orthodrome concave, the sleeve contact area of this moulding is little, temperature rise, and because lever principle, the grafting stress point is inboard at flange, the flange moulding is easily inserted collapses, the shortcomings such as socket ubiquity insertion force is large, and withdrawal force is little, and insertion force instantaneous variation, the insertion time is very short, so that the feel extreme difference.So far the sleeve that does not occur that a insertion force equates with withdrawal force or approach.

At present the attaching plug of electrical equipment is type more and more, for example the type of the latch of common plug is seen Fig. 4 such as perpendicular cotter pilotage 101(in the market), cylindrical pin 102(sees Fig. 5), horizontal cotter pilotage 103(sees Fig. 6), tightening key 104(sees Fig. 7), but the versatility of the sleeve of the socket that existing and multiclass plug is supporting is poor, the versatility of sleeve, refer to the ability that the latch of the plug that same sleeve in the supply socket can compatible number of different types inserts, existing sleeve still can not desirable compatible above-mentioned various plugs latch insert, make the same socket can not adapt to various plugs, the awkward problem of socket product is more outstanding.Though what have can be compatible, complex structure, manufacturing cost are high, and/or have that contact resistance is large, the defective of temperature rise.Moreover the sleeve on the existing socket often adopts the single face contact structures, namely only have a face of latch to contact with sleeve, not only contact-making surface is more half as large than double contact structure for this single face contact structures, but also need additional springs mechanism and set the structure that cooperates with the another side close contact of latch at other position of socket, thereby complicated structure, assembling is inconvenient, production cost is higher.

The utility model content

The utility model purpose is to provide a kind of multiplex sleeve in the two poles of the earth of supply socket, set about overcoming the number of drawbacks of above-mentioned existing sleeve technology from the structural design of sleeve, its contact area is large, contact engaging and separating force is moderate, feel is comfortable and versatility is good, is the radical innovations means of manufacturing supply socket of new generation.

To achieve these goals, the utility model has adopted following concrete technical scheme.

The multiplex sleeve in the two poles of the earth of a kind of supply socket, this sleeve comprises body 1, described body 1 is connected with rear successively by head section 11, the first elastic support section 12, the first stage casing 13, the second stage casing 14 and is connected the shaped as frame that surrounds hollow, and between described head section 11 and rear 15 formation opening 18; Described head section 11 be provided with for perpendicular cotter pilotage 101 insert connect and towards the plane 111 of described shaped as frame inboard be used for the perpendicular flange 112 that the perpendicular cotter pilotage 101 of guiding inserts, described perpendicular flange 112 stretches to the turnover of the described shaped as frame outside and along described shaped as frame oblique upper X, make described plane 111 under perpendicular cotter pilotage 101 insertion states with perpendicular cotter pilotage 101 close contacts; Described the first stage casing 13 is provided with to the inboard turnover of shaped as frame and the first horizontal flange 132 of stretching along described shaped as frame lower right Y, described rear 15 is provided with to the inboard turnover of shaped as frame and the second horizontal flange 152 of stretching along described shaped as frame lower left Z, and the described first horizontal flange 132 and the second horizontal flange 152 relative being symmetrical arranged; The described first horizontal flange 132 be provided with for cylindrical pin 102 or horizontal cotter pilotage 103 insert connect and towards the first surface 1321 of the second horizontal flange 152, symmetrical with it, the described second horizontal flange 152 be provided with for cylindrical pin 102 or horizontal cotter pilotage 103 insert connect and towards second 1521 of the first horizontal flange 132, make first surface 1321, under cylindrical pin 102 or horizontal cotter pilotage 103 insertion states, realize close contacts with cylindrical pin 102 or horizontal cotter pilotage 103 respectively for second 1521.

Wherein, the connector section 11 of the first elastic support section 12 of described body 1 and the zone in the first stage casing 13 bend to ear shape or circular arc.

Wherein, the first surface 1321 on the described first horizontal flange 132 is to comprise the composite surface of facet 132a and arc inner concave 132b or be the plane.Second 1521 on the described second horizontal flange 152 is to comprise the composite surface of facet and arc inner concave or be the plane.

Wherein, also be provided with on the described first horizontal flange 132 1322, the first side end faces 1322, the first side end face towards plane 111 under perpendicular cotter pilotage 101 insertion states with perpendicular cotter pilotage 101 close contacts.Also be provided with on the described second horizontal flange 152 1522, the second side end faces 1522, the second side end face towards plane 111 under perpendicular cotter pilotage 101 insertion states with perpendicular cotter pilotage 101 close contacts.

According to another execution mode of the present utility model, described body 1 also comprises extension 16 and additional sleeve 160, and an end of extension 16 links to each other with described rear 15, and the other end of extension 16 links to each other with the additional sleeve 160 that is connected for tightening key 104 insertions.

An execution mode according to additional sleeve 160 of the present utility model, described additional sleeve 160 comprises for the first tapered plane 161 and second tapered plane 162 of tightening key 104 insertion connections, is used for the first oblique flange 163 and the second oblique flange 164 and the second elastic support section 165 that guiding tightening key 104 inserts, wherein the first tapered plane 161 links to each other with the first oblique flange 163, and the second tapered plane 162 links to each other with the second oblique flange 164; Described the second elastic support section 165 is the large bending counter clamp locking structure with reverse back bending shape, it links to each other the second tapered plane 162 and is oppositely arranged with the first tapered plane 161, and between the second tapered plane 162 and the first tapered plane 161, form the slit 166 that holds tightening key 104 insertions, make the first tapered plane 161, the second tapered plane 162 under tightening key 104 insertion states, realize close contacts with tightening key 104 respectively.The reverse back bending of described the second elastic support section 165 is shaped as subtriangular.

Another execution mode according to additional sleeve 160 of the present utility model, described additional sleeve 160 comprises the first tapered plane 161 that connects for tightening key 104 insertions and is used for the first oblique flange 163 that guiding tightening key 104 inserts, the first tapered plane 161 links to each other with the first oblique flange 163, makes the first tapered plane 161 realize close contact with tightening key 104 under tightening key 104 insertion states.

The utility model adopts new structure and processing technology, the sleeve of producing can solve the defective that common sleeve exists, so that insertion force and withdrawal force approach, it is invariable with the withdrawal force maintenance that this insertion is enclosed within the process of inserting and extracting insertion force, and good feel is arranged.

Description of drawings

Fig. 1 is the perspective view of the first embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model, can be used for the two poles of the earth Double-hole socket or the two poles of the earth Three-hole socket.

Fig. 2 and Fig. 3 are the perspective view of the second embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model, can be used for four holes, the two poles of the earth, five holes or six spring hole scokets. wherein:

Fig. 2 is that additional sleeve 160 is the first embodiment of double contact structure;

Fig. 3 is that additional sleeve 160 is the second embodiment of single face contact structures.

Fig. 4 to Fig. 7 be supply socket of the present utility model the multiplex sleeve in the two poles of the earth the operation principle schematic diagram, show the planar structure of sleeve under latch insertion state, be applicable to the sleeve of the first embodiment of Fig. 1 and Fig. 2, the second embodiment of 3.Wherein:

Fig. 4 shows sleeve and is inserting latch under perpendicular cotter pilotage 101 states and the syndeton between the sleeve;

Fig. 5 shows sleeve and is inserting latch under cylindrical pin 102 states and the syndeton between the sleeve;

Fig. 6 shows sleeve and is inserting latch under horizontal cotter pilotage 103 states and the syndeton between the sleeve;

Fig. 7 shows the 1B type sleeve shown in Fig. 2,3 and is inserting latch under tightening key 104 states and the syndeton between the additional sleeve 160.

Fig. 8 to Figure 11 is the planar structure schematic diagram of structure division of body 1 of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model, is applicable to the sleeve of the first embodiment of Fig. 1 and Fig. 2, the second embodiment of 3, wherein:

Fig. 8 is front view;

Fig. 9 is the B-B partial sectional view of Fig. 8;

Figure 10 is the left side view of Fig. 9;

Figure 11 is the A-A cutaway view of Fig. 9.

Embodiment

Fig. 1-the 11st, the figure of each execution mode of displaying the utility model.Below in conjunction with accompanying drawing 1-11 embodiment of the present utility model is described in further detail, but does not consist of any restriction of the present utility model.

Fig. 1 is the perspective view of the first embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model, and the symmetrical 1A type sleeve of two shown in the figure can be used for the two poles of the earth double-jack power socket or the two poles of the earth three-hole power socket.About two 1A type sleeves latch of holding respectively the two poles of the earth (the phase line L utmost point of power supply and the center line N utmost point) plug insert, this is the most basic combining form of the two poles of the earth supply socket.When not setting up earth electrode, the phase line L utmost point and the center line N utmost point that symmetrical two 1A type sleeves namely are the two poles of the earth double-jack power sockets; When setting up earth electrode, need to increase earth polar sleeve (not shown), the phase line L utmost point and the center line N utmost point that symmetrical two 1A type sleeves namely are the two poles of the earth three-hole power sockets, the earth electrode sleeve of setting up namely is the earth polar of the two poles of the earth three-hole power socket.

Fig. 2 and Fig. 3 are the perspective view of the second embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model, the symmetrical 1B type sleeve of shown in the figure two can be used for four holes, the two poles of the earth, five holes or six hole power sockets, about two 1B type sleeves latch of holding respectively the two poles of the earth (the phase line L utmost point of power supply and the center line N utmost point) attaching plug insert, different from 1A type sleeve among the first embodiment of Fig. 1 is, 1B type sleeve has increased additional sleeve 160 than 1A type sleeve, and two latches that can hold simultaneously the same utmost point of two attaching plugs on the same utmost point (the phase line L utmost point of power supply or the center line N utmost point) 1B type sleeve insert.When not setting up earth electrode, the phase line L utmost point and the center line N utmost point that symmetrical two 1B type sleeves namely are the two poles of the earth four hole power sockets, when setting up earth electrode, need to increase earth polar sleeve (not shown), the phase line L utmost point and the center line N utmost point that symmetrical two 1B type sleeves namely are five holes, the two poles of the earth or six hole power sockets, the earth electrode sleeve of setting up namely is the earth polar of five holes, the two poles of the earth or six hole power sockets.If the earth electrode sleeve of setting up is 1, then become the two poles of the earth five hole power sockets; If the earth electrode sleeve of setting up is 2, then become the two poles of the earth six hole power sockets.In Fig. 2 and the second embodiment shown in Figure 3, the additional sleeve 160 that Fig. 2 provides is the first embodiment of double contact structure, and it comprises the first tapered plane 161, the second tapered plane 162, the first oblique flange 163 and the second oblique flange 164; The additional sleeve 160 that Fig. 3 provides is the second embodiment of single face contact structures, and it comprises the first tapered plane 161 and the first oblique flange 163.

Because two 1A type sleeves of the first embodiment are symmetrical two individual members, two 1B type sleeves of the second embodiment also are symmetrical two individual members, so for fear of being repeated in this description, only take that 1A type sleeve on the left side or 1B type sleeve as the example explanation, omitted the description to the same structure of that symmetrical 1A type sleeve on the right or 1B type sleeve at the multiplex sleeve in the two poles of the earth of supply socket described in the utility model.Fig. 4 to Fig. 7 is applicable to first embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model and the sleeve operation principle schematic diagram of the second embodiment, has only illustrated that certainly that 1A type sleeve on the left side and 1B type sleeve insert planar structure under the sleeve state at latch.

As previously mentioned, the shape and structure of latch is diversified on the attaching plug of various electrical equipment, for a supply socket product, can allow the latch of the attaching plug of various shape structure to insert, be a very important functional parameter, and the key that realizes this versatility functional parameter is to consist of the versatility function of the sleeve of supply socket and is eager to excel.And multiplex sleeve of the present utility model can be applicable to the latch of four kinds of shape and structures of Fig. 4 to Fig. 7 at least, wherein: Fig. 4 shows 1A type sleeve and is inserting latch under perpendicular cotter pilotage 101 states and the syndeton between the sleeve with the 1B type sleeve of additional sleeve 160, Fig. 5 shows 1A type sleeve and is inserting latch under cylindrical pin 102 states and the syndeton between the sleeve with the 1B type sleeve of additional sleeve 160, Fig. 6 shows 1A type sleeve and is inserting latch under horizontal cotter pilotage 103 states and the syndeton between the sleeve with the 1B type sleeve of additional sleeve 160, and Fig. 7 shows Fig. 2,1B type sleeve shown in 3 is inserting latch under tightening key 104 states and the syndeton between the additional sleeve 160.Inserting in the latch and the syndeton between the sleeve that erects under cotter pilotage 101 states at sleeve shown in Figure 4, perpendicular cotter pilotage 101 is latches that known cross section is flat (such as very flat rectangle), and two latches of the L utmost point and the N utmost point become " || " shape to be arranged in parallel.In sleeve shown in Figure 5 latch and the syndeton between the sleeve under insertion cylindrical pin 102 states, cylindrical pin 102 is cylindric latch as is well known.In sleeve shown in Figure 6 latch and the syndeton between the sleeve (English system) under horizontal cotter pilotage 103 states of insertion, horizontal cotter pilotage 103 is latches that known cross section is flat (such as very flat rectangle), and two latches of the L utmost point and the N utmost point become "---" shape to arrange.In 1B type sleeve shown in Figure 7 latch and the syndeton between the additional sleeve 160 under insertion tightening key 104 states, tightening key 104 is latches that known cross section is flat (such as very flat rectangle), and two latches of the L utmost point and the N utmost point become "/" shape to arrange.Obviously, the new construction of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model has greatly strengthened sleeve and has adopted the versatility function of socket product.

Fig. 8 to Figure 11 is the planar structure schematic diagram of structure division that is applicable to the body 1 of first embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model and the second embodiment, and wherein: Fig. 8 is front view; Fig. 9 is the B-B partial sectional view of Fig. 8; Figure 10 is the left side view of Fig. 9; Figure 11 is the A-A cutaway view of Fig. 9.Further specify the embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model below in conjunction with Fig. 8 to Figure 11.The body 1 of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model is the shaped as frame that is connected to successively by head section 11, the first elastic support section 12, the first stage casing 13, the second stage casing 14, rear 15, and forms opening 18 between head section 11 and rear 15.Here link to each other successively and refer to that order is connected as one successively, namely head section 11 links to each other with the first elastic support section 12, the first elastic support section 12 links to each other with the first stage casing 13, the first stage casing 13 links to each other with the second stage casing 14, the second stage casing 14 links to each other with rear 15, by the continuous structure of described successively order, head section 11, the first elastic support section 12, the first stage casing 13, the second stage casing 14, rear 15 are connected as a single entity, and enclose the as shown in figure 11 shaped as frame of shape.The first elastic support section 12 between head section 11 and the first stage casing 13 wherein, the zone in its connector section 11 and the first stage casing 13 bends to ear shape or circular arc as shown in Figure 8.Described head section 11 is provided with towards the plane 111 of described shaped as frame inboard, inserts for perpendicular cotter pilotage 101 to connect.Under perpendicular cotter pilotage 101 insertion states, this plane 111 and perpendicular cotter pilotage 101 close contacts, because the contact-making surface between plane 111 and the perpendicular cotter pilotage 101 is the plane or is almost plane at least, so the contact area of latch and body 1 is large, contact resistance is little, thereby effectively reduces temperature rise.As shown in Figure 9, also be provided with on the head section 11 of body 1 to the outside turnover of described shaped as frame and the perpendicular flange 112 that stretches along described shaped as frame oblique upper X, be used for the perpendicular cotter pilotage 101 of guiding and insert, described perpendicular flange 112 links to each other with head section 11, can be one-body molded.As shown in figure 10, the first stage casing 13 of body 1 is provided with to the inboard turnover of described shaped as frame and the first horizontal flange 132 of stretching along described shaped as frame lower right Y, described rear 15 is provided with to the inboard turnover of described shaped as frame and the second horizontal flange 152 of stretching along described shaped as frame lower left Z, the first stage casing 13 and rear 15 are in the relative symmetric position of described shaped as frame, the first horizontal flange 132 and the second horizontal flange 152 must be in relative position and be symmetrical arranged, and have the V-arrangement space 1315 that holds cylindrical pin 102 or 103 insertions of horizontal cotter pilotage between them.The first horizontal flange 132 of body 1 be provided with for cylindrical pin 102 or horizontal cotter pilotage 103 insert connect and towards the first surface 1321 of the second horizontal flange 152, with the second horizontal flange 152 that the first horizontal flange 132 is symmetrically set be provided with for cylindrical pin 102 or horizontal cotter pilotage 103 insert be connected and towards second 1521 of the first horizontal flange 152.Because the first horizontal flange 132 and the second horizontal flange 152 are in relative position, so first surface 1321, also mutually be symmetrical arranged for second 1521, when cylindrical pin 102 or horizontal cotter pilotage 103 inserts under the state in V-arrangement spaces 1315, first surface 1321, form close contacts with cylindrical pin 102 or horizontal cotter pilotage 103 respectively for second 1521.Owing to leaving V-arrangement space 1315 as shown in figure 10, and leave the first space 133 between the first horizontal flange 132 and the first stage casing 13, leave the architectural feature of Second gap 153 between the second horizontal flange 152 and the rear 15, so the multiplex sleeve in the two poles of the earth of supply socket of the present utility model has very large tolerance to the size of the thickness of the diameter of cylindrical pin 102 or horizontal cotter pilotage 103, thereby has further strengthened its versatility.Above-mentioned first surface 1321 and second 's 1521 structure can be various, accompanying drawing 9 has provided a preferred embodiment, first surface 1321 is the composite surface that comprises facet 132a and arc inner concave 132b, and certainly, embodiment commonly used also can be the (not shown) on plane.Second 1521 similar to first surface 1321, and second 1521 can be the composite surface plane (not shown) that comprises facet and arc inner concave, can certainly be the plane (not shown).First surface 1321, be preferably respectively the composite surface (perhaps plane) that comprises facet and arc inner concave for second 1521, can make that contact area between they and cylindrical pin 102 or the horizontal cotter pilotage 103 is large, contact resistance is little, thereby effectively reduce temperature rise.

The structure of the first elastic support section 12 of body 1 can be various, accompanying

drawing

1,8,11 has provided the preferred embodiment that the first elastic support section 12 bends to ear shape, advantage is to make head section 11 obtain the very large oscillating quantity around the first elastic support section 12 elastics wings, thereby improve the multiplex sleeve in the two poles of the earth of supply socket to the tolerance of the gauge size of perpendicular cotter pilotage 101, further strengthen thus the versatility of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model.Another available embodiment is that the first elastic support section 12 bends to the circular arc (not shown).

Plane 111 on the head section 11 of body 1 keeps under perpendicular cotter pilotage 101 insertion states and perpendicular cotter pilotage 101 close contacts, reduce the temperature rise effect for further improving, a preferred embodiment as shown in Figure 8, the first horizontal flange 132 in the first stage casing 13 is provided with towards the plane the first side end face 1322 of 111, under perpendicular cotter pilotage 101 insertion states, the first side end face 1322 and perpendicular cotter pilotage 101 close contacts, simultaneously the second horizontal flange 152 of rear 15 is provided with towards the plane the second side end face 1522 of 111, under perpendicular cotter pilotage 101 insertion states, the second side end face 1522 and perpendicular cotter pilotage 101 close contacts.Not hard to imagine, alternative embodiment shown in Figure 8 has three at least, and wherein: the first string is only to be provided with the first side end face 1322 at the first horizontal flange 132; Second scheme is only to be provided with the second side end face 1522 at the second horizontal flange 152; The 3rd scheme is the side end face of all not establishing on the first horizontal flange 132 and the second horizontal flange 152 with perpendicular cotter pilotage 101 close contacts, under perpendicular cotter pilotage 101 insertion states, perpendicular cotter pilotage 101 only has a face to contact with plane 111, and another face of perpendicular cotter pilotage 101 does not contact with the first horizontal flange 132 and/or the second horizontal flange 152.In this case, be face and plane 111 close contacts that guarantee perpendicular cotter pilotage 101, another face of perpendicular cotter pilotage 101 also must adopt structure conventional and other position (not shown) close contact other members (such as the shell block of socket, not shown) or jack sleeve.

The second embodiment of the multiplex sleeve in the two poles of the earth of supply socket of the present utility model is described referring to Fig. 2 and Fig. 3, this embodiment has also increased additional sleeve 160 on the body 1 of 1A type sleeve, the multiplex sleeve in the two poles of the earth of supply socket is made of two symmetrical 1B type sleeves, shown in Fig. 2 or 3, the body 1 of 1B type sleeve also comprises extension 16 and additional sleeve 160, one end of extension 16 links to each other with the rear 15 of body 1, and the other end of extension 16 links to each other with the additional sleeve 160 that is connected for tightening key 104 insertions.The structure of additional sleeve 160 is various, and wherein: the first embodiment of the additional sleeve 160 that Fig. 2 provides is preferred version, and its double contact structure has the little characteristics of temperature rise; The second embodiment of the additional sleeve 160 that Fig. 3 provides is common scheme, and its single face contact structures have characteristics simple in structure.

Referring to Fig. 2, the first embodiment is the additional sleeve 160 with double contact structure, it comprises for tightening key 104 inserts the first tapered plane 161 and the second tapered plane 162 that connects, be used for the first oblique flange 163 and the second oblique flange 164 and the second elastic support section 165 that guiding tightening key 104 inserts, wherein the first tapered plane 161 links to each other with the first oblique flange 163, the second tapered plane 162 links to each other with the second oblique flange 164, and the second tapered plane 162 links to each other with the first tapered plane 161 by the second elastic support section 165 with reverse back bending shape, make the second tapered plane 162 hold the slit 166 that tightening key 104 inserts, the common tightening key 104 close-connected large bending counter clamp locking structures that consist of and insert with the first tapered plane 161 relative also formation.Under tightening key 104 insertion states, the first tapered plane 161, the second tapered plane 162 are realized close contact with tightening key 104 respectively, and the acute angle bending and molding structure of this side has also been eliminated the defect that existing sleeve is difficult for strutting simultaneously in the latch insertion process.What easily expect is, the reverse back bending shape of described the second elastic support section 165 can be various, and the second elastic support section 165 of the embodiment that Fig. 2 provides bends to subtriangular, and this is preferred scheme, replaceable scheme such as U font etc.Two of the multiplex sleeve in the two poles of the earth of the supply socket of the utility model the first embodiment is inserted flange and is abandoned original orthodrome concave molding mode, what adopt is the mode of band flat end flange and side-edge acute moulding, band flat end flange so that whole plane all contact with latch, effectively reduce temperature rise, guaranteed good electric conductivity.And since the stress point of flange almost in the plane, easily inserted the defective of collapsing so eliminated existing flange, the acute angle bending and molding structure of side simultaneously shown in Figure 2 has been eliminated the defect that existing sleeve is difficult for strutting in the latch insertion process, contact engaging and separating force is more reliable.Have, two insert flange connects fulcrums at side again, and this is so that its direction of motion horizontally rotates, and the direction of motion of latch is relatively vertical, can make flange rotation at the uniform velocity, thereby obtains uniform contact engaging and separating force, makes the comfortable feel of plug.

Referring to Fig. 3, the second embodiment is the additional sleeve 160 with single face contact structures, it comprises for tightening key 104 inserts the first tapered plane 161 that connects and is used for the first oblique flange 163 that guiding tightening key 104 inserts, the first tapered plane 161 links to each other with the first oblique flange 163, under tightening key 104 insertion states, the first tapered plane 161 and tightening key 104 close contacts.What easily expect is, under tightening key 104 insertion states, a face close contact of 161 of the first tapered planes of additional sleeve 160 and tightening key 104, in this case, tightening key 104 also need adopt in the usual way the structure with a position (not shown) close contact of socket (not shown).

What should be understood that is: above-described embodiment is just to explanation of the present utility model, rather than to restriction of the present utility model, any utility model that does not exceed in the utility model connotation scope is created, and all falls within the protection range of the present utility model.

Claims

1. the multiplex sleeve in the two poles of the earth of a supply socket, this sleeve comprises body (1), it is characterized in that:

Described body (1) is connected 15 by head section (11), the first elastic support section (12), the first stage casing (13), the second stage casing (14) with rear) connect successively the shaped as frame that surrounds hollow, and between described head section (11) and rear (15), form opening (18);

Described head section (11) be provided with for perpendicular cotter pilotage (101) insert connect and towards the plane (111) of described shaped as frame inboard be used for the perpendicular flange (112) that the perpendicular cotter pilotage (101) of guiding inserts, described perpendicular flange (112) stretches to the turnover of the described shaped as frame outside and along described shaped as frame oblique upper X, make described plane (111) under perpendicular cotter pilotage (101) insertion state with perpendicular cotter pilotage (101) close contact;

Described the first stage casing (13) is provided with to the inboard turnover of shaped as frame and the first horizontal flange (132) of stretching along described shaped as frame lower right Y, described rear (15) is provided with to the inboard turnover of shaped as frame and the second horizontal flange (152) of stretching along described shaped as frame lower left Z, and the described first horizontal flange (132) and relative being symmetrical arranged of the second horizontal flange (152);

The described first horizontal flange (132) be provided with for cylindrical pin (102) or horizontal cotter pilotage (103) insert connect and towards the first surface (1321) of the second horizontal flange (152), symmetrical with it, the described second horizontal flange (152) be provided with for cylindrical pin (102) or horizontal cotter pilotage (103) insert connect and towards second 1521 of the first horizontal flange (132), make first surface (1321), second (1521) realize close contact with cylindrical pin (102) or horizontal cotter pilotage (103) respectively under cylindrical pin (102) or horizontal cotter pilotage (103) insertion state.

2. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1 is characterized in that: the connector section (11) of the first elastic support section (12) of described body (1) bends to ear shape or circular arc with the zone in the first stage casing (13).

3. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1 is characterized in that: the first surface (1321) on the described first horizontal flange (132) is to comprise the composite surface of facet (132a) and arc inner concave (132b) or be the plane.

4. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1 is characterized in that: second (1521) on the described second horizontal flange (152) are to comprise the composite surface of facet and arc inner concave or be the plane.

5. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1, it is characterized in that: also be provided with first side end face (1322) of towards the plane (111) on the described first horizontal flange (132), the first side end face (1322) under perpendicular cotter pilotage (101) insertion state with perpendicular cotter pilotage (101) close contact.

6. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1, it is characterized in that: also be provided with second side end face (1522) of towards the plane (111) on the described second horizontal flange (152), the second side end face (1522) under perpendicular cotter pilotage (101) insertion state with perpendicular cotter pilotage (101) close contact.

7. the multiplex sleeve in the two poles of the earth of supply socket according to claim 1, it is characterized in that: described body (1) also comprises extension (16) and additional sleeve (160), one end of extension (16) links to each other with described rear (15), and the other end of extension (16) links to each other with the additional sleeve (160) that is connected for tightening key (104) insertion.

8. the multiplex sleeve in the two poles of the earth of supply socket according to claim 7 is characterized in that:

Described additional sleeve (160) comprises for the first tapered plane (161) and second tapered plane (162) of tightening key (104) insertion connection, is used for the first oblique flange (163) and the second oblique flange (164) and the second elastic support section (165) that guiding tightening key (104) inserts, wherein the first tapered plane (161) links to each other with the first oblique flange (163), and the second tapered plane (162) links to each other with the second oblique flange (164);

Described the second elastic support section (165) is the large bending counter clamp locking structure with reverse back bending shape, it links to each other the second tapered plane (162) and is oppositely arranged with the first tapered plane (161), and between the second tapered plane (162) and the first tapered plane (161), form the slit (166) that holds tightening key (104) insertion, make the first tapered plane (161), the second tapered plane (162) under tightening key (104) insertion state, realize close contact with tightening key (104) respectively.

9. the multiplex sleeve in the two poles of the earth of supply socket according to claim 7, it is characterized in that: described additional sleeve (160) comprises the first tapered plane (161) that connects for tightening key (104) insertion and is used for the first oblique flange (163) that guiding tightening key (104) inserts, the first tapered plane (161) links to each other with the first oblique flange (163), makes the first tapered plane (161) realize close contact with tightening key (104) under tightening key (104) insertion state.

10. the multiplex sleeve in the two poles of the earth of supply socket according to claim 8, it is characterized in that: the reverse back bending of described the second elastic support section (165) is shaped as subtriangular.