CN106877094A - A kind of anti-drop socket - Google Patents

Abstract

The invention discloses an anti-drop socket, which relates to the technical field of sockets. The invention is invented to solve the problem in the prior art that it is difficult to reduce the height of the anti-off socket. The anti-off socket of the present invention includes a base, a cover plate covering the base, a socket is provided in the base, and the socket includes two clips opposite and spaced apart. The two clips A slot corresponding to the socket on the cover plate is formed between them, and the two clips are respectively clamped by the opposite sides of the plug inserted into the slot, and the anti-dropping socket also includes The pull-out locking mechanism of the latch is locked by at least one of the other two sides of the latch. The anti-off socket of the invention is used to reduce the height of the anti-off socket.

Description

A kind of anti-drop socket

technical field

The invention relates to the technical field of sockets, in particular to an anti-dropping socket.

Background technique

With the upgrade of the national standard, while the socket is equipped with a pull-out locking mechanism, a protective door needs to be added in the socket for protection against electric shock.

For example, as shown in Figure 1, it is a kind of anti-off socket in the prior art, and the anti-off socket includes a housing 01 composed of an upper cover 011 and a lower cover 012 that are interlocked with each other. Inside, above the inserting sleeve 02 corresponding to the lower part of the upper cover 011, there is a pull-out locking mechanism 03 composed of a sloped sleeve 031 and two cylinders 032 symmetrically arranged on both sides inside the sloped sleeve 031. The inner longitudinal section of the sloped sleeve 031 It has an umbrella-shaped cone angle, and the middle allows the bolt to pass through. The cylinder 032 is installed on the floating block 04 that can move up and down. The cylinder 032 can move up and down along the inner slope of the inclined surface sleeve 031 under the drive of the floating block 04 . Thus, when the plug 001 is pulled out upwards, the cylinder 032 moves upwards under the action of friction, but due to the restriction of the beveled sleeve 031, the cylinder 032 becomes more and more tightly stuck on the two slopes in the beveled sleeve 031. This forms a self-locking, so that the plug 001 cannot be pulled out or is not easy to pull out; and after the floating block 04 is pressed down by a certain distance by operating the lever (not shown in the figure), the space between the two cylinders 032 can be The distance is opened, and the latch can be easily pulled out at this time.

However, it can be seen from FIG. 1 that the socket 02 includes two clips that are opposite and spaced apart. The two clips clamp the plug pin on opposite sides of the plug pin. The two side walls locked by the pull-out locking mechanism 03 on the plug pin are the same as the two side walls clamped by the two clips. The two cylinders 032 included in the pull-out lock mechanism 03 are mutually vertical to the socket. overlap, so blocked by the socket, the two cylinders 032 cannot move down into the lower cover 012, so the installation height of the socket cannot be reduced, and if a protective door is added in the upper cover 011, it will further increase Increase the height of the anti-dropping socket, thereby increasing the volume of the socket and affecting the aesthetics of the socket. Therefore, limited by the height of the socket, it is generally difficult to simultaneously install a pull-out locking mechanism and a protective door on the socket in the prior art.

Contents of the invention

The invention provides an anti-off socket, the purpose of which is to provide a pull-out locking method, that is, to lock the pin from the side wall of the pin that is not clamped by the clip, so as to facilitate the movement of the pull-out locking mechanism to the socket. within the height range, thereby being able to reduce the height of the socket.

In order to achieve the above object, the present invention provides an anti-drop socket, which includes a base and a cover plate covering the base, and a socket is provided in the base, and the socket includes two opposing and spaced apart sockets. A clip, a slot corresponding to the socket on the cover plate is formed between the two clips, and the two clips are respectively clamped by the opposite sides of the plug inserted into the slot. The plug, the anti-drop socket also includes a pull-out locking mechanism that locks the plug by at least one of the other two sides of the plug.

The invention provides a kind of anti-drop socket, because when the bolt is inserted in the slot, the two clips included in the sleeve respectively hold the bolt by the opposite sides of the bolt, and the pull-out locking mechanism is controlled by the plug inserted into the slot. At least one of the other two sides of the pin locks the pin so that the area on the side wall of the pin locked by the pull-out locking mechanism does not vertically overlap the area held by the clips, thereby enabling the pull-out lock The mechanism moves down to the height range of the socket, so as to reduce the setting height of the anti-off socket. Therefore, compared with the prior art, the embodiment of the present invention can reduce the height of the anti-shock socket, so as to facilitate the installation of an electric shock protection door on the socket, so that the pull-out locking mechanism and the electric shock protection door can be installed on the socket at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the cross-sectional view of prior art anti-off socket;

Fig. 2 is an exploded view of the anti-off socket of the embodiment of the present invention;

Fig. 3 is a schematic structural view of the anti-off socket according to the embodiment of the present invention after the cover plate is removed;

Fig. 4 is a schematic structural view of a floating frame in an anti-off socket according to an embodiment of the present invention;

Fig. 5 is a top view of the anti-off socket according to the embodiment of the present invention;

Fig. 6 is a schematic cross-sectional view of the anti-off socket shown in Fig. 5 along A-A;

Fig. 7 is a schematic diagram of a cross-sectional structure of the anti-off socket shown in Fig. 5 along B-B;

Fig. 8 is a schematic cross-sectional view of the anti-off socket shown in Fig. 5 along C-C;

Fig. 9 is a schematic cross-sectional view of the anti-off socket shown in Fig. 5 along D-D;

FIG. 10 is a schematic structural view of the anti-off socket shown in FIG. 3 after the plug is inserted.

Reference signs:

011-upper cover; 012-lower cover; 01-housing; 02-plug sleeve; 031-bevel sleeve; 032-cylinder; 03-pull out locking mechanism; 04-floating block; 001-plug; 1- Base; 2-cover plate; 3-insert sleeve; 4-pull out locking mechanism; 41-slope sleeve; 42-floating frame; 43-friction member; 5-bolt; 6-elastic member; 31-E pole socket; 32-Three-pole N-pole socket; 33-Three-pole L-pole socket; 34-Two-pole N-pole socket; 35-Two-pole L-pole socket; 100-First escape hole; 200-Second avoidance hole; 300- The third avoidance hole; 400-the fourth avoidance hole; 500-the fifth avoidance hole; 7-operating lever; 8-avoidance groove; 421-the first rib; 422-the second rib; 71-the second buckle position; 21-front panel; 22-partition plate; 23-two-pole protection door; 24-three-pole protection door.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

Referring to Fig. 2, Fig. 2 is a specific embodiment of the anti-off socket of the embodiment of the present invention. The anti-off socket of this embodiment includes a base 1, a cover plate 2 covering the top of the base 1, and the base 1 is provided with There is a socket 3, the socket 3 includes two clips that are opposite and spaced apart, a slot corresponding to the jack on the cover plate 2 is formed between the two clips, and the two clips The clips are respectively clamped by the opposite two sides of the plug 5 inserted into the slot, and the anti-off socket also includes a puller for locking the plug 5 by at least one of the other two sides of the plug 5 . Out of the locking mechanism4.

In the anti-off socket provided by the present invention, when the bolt 5 is inserted in the slot, the two clips included in the plug sleeve 3 hold the bolt 5 by the opposite sides of the bolt 5 respectively, and the locking mechanism 4 is pulled out. This latch 5 is locked by at least one side of the other two sides of the latch 5 inserted into the slot, so the area locked by the pull-out locking mechanism 4 on the side wall of the latch 5 has no overlap in the vertical direction with the area clamped by the clip , so that the pull-out locking mechanism 4 can be moved down to within the height range of the socket 3, so as to reduce the installation height of the anti-off socket. Therefore, compared with the prior art, the embodiment of the present invention can reduce the height of the anti-shock socket, so as to facilitate the installation of an electric shock protection door on the socket, so that the pull-out locking mechanism and the electric shock protection door can be installed on the socket at the same time.

In the above-mentioned embodiment, the pull-out locking mechanism 4 can be a clamping mechanism in which the side wall of the latch 5 hugs the latch 5, or it can be a limiting structure including a limiting groove and a limiting protrusion that cooperate with each other. Be specific. However, when adopting the above-mentioned second scheme, it is inevitable that a limiting structure will be provided on the latch 5. Since the latch 5 has a small volume and a thinner thickness, if a limiting groove or a limiting hole is set on the latch 5, It will reduce the structural strength of the latch 5. In addition, since the latch 5 needs to pass through the socket on the cover plate 2 before being inserted into the socket 3, if a limit protrusion is set on the latch 5, it will cause The latch 5 cannot pass through the jack on the cover plate 2 . Therefore, in order to avoid the above-mentioned problems, it is preferable to adopt the above-mentioned first solution, that is, as shown in FIG. A slope opposite to the side wall of the latch 5 is formed, and the distance between the slope and the side wall of the latch 5 gradually decreases from bottom to top. The pull-out locking mechanism 4 also includes a friction member 43 for clamping the latch 5. The friction member 43 is located at Between the slope and the bolt 5, the friction member 43 is movably installed on the floating frame 42, and can move up and down along the slope driven by the floating frame 42 to abut against or separate from the side wall of the bolt 5, thereby holding the bolt 5 tightly or Separated from the bolt 5, it is avoided to set a limiting structure such as a limiting groove or a limiting protrusion on the bolt 5, thereby ensuring the structural strength and insertion effectiveness of the bolt 5.

Wherein, the friction member 43 may be a cylindrical structure, may also be a prismatic structure, and may also be a cubic column or spherical structure, which is not specifically limited here.

In addition, the slope cover 41 can be fixedly connected with the cover plate 2, so that the slope cover 41 can be removed from the base when the cover plate 2 is opened, thereby reducing the difficulty of disassembling the socket. Moreover, in order to improve the structural strength of the inclined surface sleeve 41, it is preferable that the inclined surface sleeve 41 is made of metal materials. Compared with non-metallic materials, metal materials have a stable structure and high strength, and are not easy to deform when subjected to frequent pressure.

Furthermore, the pull-out locking mechanism 4 can lock the latch 5 by the sidewalls on either side of the latch 5 that are not clamped by the clips, or can be locked by the sidewalls on both sides of the latch 5 that are not clamped by the clips. The latch 5 is not specifically limited here. However, when adopting the above-mentioned first solution, the pull-out locking mechanism 4 locks the latch 5 by one side wall of the latch 5, and the latch 5 is subjected to force on one side, and the latch 5 is prone to bending deformation. In order to avoid the above-mentioned problems, it is preferable to adopt the above-mentioned second solution. Specifically, as shown in FIG. 2, there are two slopes formed by the slope sleeve 41, and the two slopes are respectively opposite to the side walls of the latch 5, and there are two friction members 43. , the two friction members 43 are respectively arranged between the two slopes and the bolt 5, so that the two friction members 43 can respectively press the opposite side walls of the bolt 5, at this time, the opposite sides of the bolt 5 are stressed , the force is more balanced, which can avoid the bolt 5 from bending and deforming, and the two sides of the bolt 5 are subject to the holding force, so the holding force used to prevent the bolt 5 from coming out of the slot is larger.

In the above-mentioned embodiment, the sloped sleeve 41 can be a sloped sleeve with a “Λ” cross-section, or a sloped sleeve with a shape as shown in FIG. The sleeve 41 is formed with two slopes opposite to the side walls on opposite sides of the bolt 5 , and the distance between the two slopes and the bolt 5 is gradually reduced from bottom to top.

In order to reduce the height of the anti-off socket, specifically, when the floating frame 42 moves down to the lowest position in the base 1 , the lower end of the friction member 43 is located below the upper end of the corresponding socket 3 . Therefore, during the floating process of the floating frame 42 up and down, the friction member 43 can move down to within the height range of the socket 3 , thereby reducing the height of the anti-off socket.

In the embodiment shown in FIG. 2 , in order to prevent interference between the friction member 43 and the two clips forming the slot, preferably, the side wall on the latch 5 that can be locked by the pull-out locking mechanism 4 is along the transverse direction. Extending to the outside of the slot range, when the latch 5 is plugged into the slot and locked by the pull-out locking mechanism 4, there is no overlap between the friction member 43 and the two clips in the vertical direction, so the friction When the part 43 moves up and down under the drive of the floating frame 42, it will not interfere with the two clips.

In order to drive the floating frame 42 to move up and down in the base 1, it can be driven by a linear motor, or it can be driven by the elastic force of the elastic member and the pressure of the auxiliary hand, which is not specifically limited here. However, when the above-mentioned first solution is adopted, since the linear motor has many internal parts, its volume and mass are generally large, which is not conducive to installation in the base 1 . Therefore, in order to avoid the above-mentioned problems, the above-mentioned second solution can be adopted. Specifically, an elastic member 6 is provided between the floating frame 42 and the bottom wall of the base 1 or between the floating frame 42 and the cover plate 2, and the elastic member 6 can float toward The frame 42 acts an upward elastic force so that the friction member 43 installed on the floating frame 42 is against the side wall of the latch 5. At this time, if the latch 5 is pulled out upwards, the friction member 43 will be under friction and elastic force. There is a tendency to move upward under the action of the slope, but due to the effect of the slope sleeve, the friction member 43 is more and more stuck on the slope, and forms a self-lock, so that the latch 5 cannot be pulled out or is not easy to pull out, and the latch 5 is pulled out when necessary. When going out, the floating frame 42 can be pressed down manually, so that the two friction members 43 mounted on the floating frame 42 are disengaged from the latch 5 (as shown in Figure 9 ), and the latch 5 can be pulled out normally. This structure only installs one or more elastic parts 6 in the base 1 , the elastic parts 6 are small in size and light in weight, and are convenient to be installed in the base 1 .

Wherein, the elastic member 6 may be a structure such as a spring or a shrapnel, which is not specifically limited here. However, since the spring is a commonly used elastic member and can generate relatively large elastic force, it is preferred that the elastic member 6 is a spring.

In the embodiment shown in FIG. 2 , the anti-off socket may be a two-hole socket, may also be a three-hole socket, or may be a five-hole socket, which is not specifically limited here. However, since the five-hole socket can be plugged with both a three-pole plug and a two-pole plug, it has a wide range of applications, so the five-hole socket is a common socket in the prior art. Therefore, for the convenience of description, only a five-hole socket is used as an example for description below.

Specifically, the cover plate 2 of the five-hole socket is provided with a five-hole socket consisting of a three-pole socket and a two-pole socket, and the socket 3 in the socket includes a three-pole socket corresponding to the three-pole socket. The sleeve and the two-pole socket corresponding to the two-pole socket, the composition and arrangement orientation of the three-pole socket and the two-pole socket can be as shown in Figure 3, that is, the three-pole socket includes the E-pole socket 31, the three-pole The N-pole socket 32 and the three-pole L-pole socket 33, the two-pole sockets include two-pole N-pole sockets 34 and two-pole L-pole sockets 35 arranged on opposite sides of the E-pole socket 31, and the two-pole N-pole sockets 34 The distance to the three-pole N-pole socket 32 is smaller than the distance from the two-pole L-pole socket 35 to the three-pole N-pole socket 32 .

In order to reduce the setting quantity of the pull-out locking mechanism 4 in the anti-off socket, and in order to reasonably arrange the pull-out locking mechanism 4 in the socket, the setting quantity and the setting position of the pull-out locking mechanism 4 can include the following two specific embodiments:

Embodiment 1: As shown in Figure 3, there are two pull-out locking mechanisms 4, and the two pull-out locking mechanisms 4 are respectively used for pulling out and locking and inserting on the three-pole L-pole socket 33 and the two-pole N-pole socket 34 The latch 5. Thus the three-pole socket can only pull out and lock the whole three-pole plug plugged on the three-pole socket 33 through the pull-out locking mechanism 4 on the three-pole L socket 33, and the two-pole socket only passes through the two poles N The pull-out locking mechanism 4 on the pole socket 34 can pull out and lock the entire two-pole plug plugged on this two-pole socket, compared with the three-pole socket and the two-pole socket, each socket is provided with a pull-out As for the solution of the locking mechanism 4, this embodiment can reduce the number of the pull-out locking mechanism 4 in the socket, thereby saving costs and reducing the structural complexity of the anti-off socket. Simultaneously, because the three-pole L-pole socket 33 and the two-pole N-pole socket 34 are arranged diagonally among the five sockets in the base 1, and the three-pole L-pole socket 33 and the two-pole N-pole socket 34 are adjacent to each other. The distance between the sockets is far, and there are more gaps around the three-pole L-pole socket 33 and the two-pole N-pole socket 34 to install the pull-out locking mechanism 4, so the layout of the pull-out locking mechanism 4 in the socket is comparatively small. Reasonable.

Embodiment 2: There are two pull-out locking mechanisms 4, and the two pull-out locking mechanisms 4 are respectively used for pulling out and locking the latches 5 inserted in the two-pole L-pole socket 35 and the three-pole N-pole socket 32. Thus the three-pole socket can be pulled out and locked only through the pull-out locking mechanism 4 on the three-pole N-pole socket 32, and the entire three-pole plug plugged on this three-pole socket can be pulled out and locked, and the two-pole socket can only be inserted through the two poles L. The pull-out locking mechanism 4 on the pole socket 35 can pull out and lock the entire two-pole plug plugged on this two-pole socket, compared to the three-pole socket and the two-pole socket, each socket is provided with a pull-out As for the solution of the locking mechanism 4, this embodiment can reduce the number of installations of the pulling-out locking mechanism 4 in the socket, thereby saving costs and reducing structural complexity. Simultaneously, because the two-pole L-pole socket 35 and the three-pole N-pole socket 32 are arranged diagonally among the five sockets in the base 1, and the two-pole L-pole socket 35 and the three-pole N-pole socket 32 are adjacent to each other. The distance between the sockets is far, so there are more gaps around the two-pole L-pole socket 35 and the three-pole N-pole socket 32 to install the pull-out locking mechanism 4, so the layout of the pull-out locking mechanism 4 in the socket more reasonable.

In the first or second embodiment above, the floating frame 42 in the two pull-out locking mechanisms 4 can be two mutually independent structures, or can be a whole. When the above-mentioned first solution is adopted, two floating frames need to be installed in the base 1 at the same time, which is difficult to install, and the manufacturing cost of the two floating frames is high. Therefore, in order to avoid the above-mentioned problems, it is preferable to adopt the above-mentioned second solution, that is, the floating racks in the two pull-out locking mechanisms 4 are integrated to avoid making multiple floating racks, so the cost is relatively low, and only Only one floating frame can be installed in the base 1, so the installation difficulty is relatively small.

In order to enable the floating frame 42 to float up and down in the base 1, an avoidance structure needs to be provided on the floating frame 42 to avoid the inserting sleeve and the slope sleeve 41 in the base 1. Specifically, see Fig. 3 and Fig. 4 , on the floating frame 42, A first avoidance hole 100 is provided at the position corresponding to the socket of the two-pole socket provided with the pull-out locking mechanism 4, and the first avoidance hole 100 is used to avoid the socket and the inclined sleeve 41 corresponding to the first avoidance hole 100; floating On the frame 42, a second avoidance hole 200 is provided at a position corresponding to the socket that is not provided with the pull-out locking mechanism 4 among the two-pole sockets, and the second avoidance hole 200 is only used to avoid the socket corresponding to the second avoidance hole 200; On the floating frame 42, a third avoidance hole 300 is provided at a position corresponding to the E pole socket 31, and the third avoidance hole 300 is used to avoid the E pole socket 31; A fourth avoidance hole 400 is provided at the position corresponding to the socket of the three-pole L-pole socket 33 provided with the pull-out locking mechanism 4 , and the fourth avoidance hole 400 is used to avoid the socket and the inclined surface sleeve 41 corresponding to the fourth avoidance hole 400 ; On the floating frame 42, the position corresponding to the plug sleeve that is not provided with the pull-out locking mechanism 4 in the three-pole N pole socket sleeve 32 and the three-pole L pole socket sleeve 33 is provided with the fifth avoidance hole 500, and the fifth avoidance hole 500 only It is used to avoid the socket corresponding to the fifth escape hole 500 . Thus, by providing five avoidance holes on the floating frame 42 , the insertion sleeve and the pull-out locking mechanism 4 in the base 1 are effectively avoided, so that the floating frame 42 can move up and down in the base 1 .

Wherein, in order to reduce the number of escape holes on the floating frame 42, reduce manufacturing difficulty, and improve manufacturing efficiency, preferably, as shown in FIGS. At this time, it is only necessary to set four avoidance holes on the floating frame 42, thereby reducing the number of avoidance holes on the floating frame 42, and avoiding the operation of opening multiple avoidance holes in a narrow space range, by This reduces the manufacturing difficulty of the floating frame 42 and improves the manufacturing efficiency.

Among them, the above-mentioned embodiment can be specifically expressed as: when the two-pole N-pole socket sleeve 34 is provided with a pull-out locking structure, the two poles on the floating frame 42 corresponding to the two-pole L-pole socket 35 and the E-pole socket 31 respectively The avoidance holes communicate with each other; when the pull-out locking structure is provided on the two-pole L-pole socket sleeves 35, the two avoidance holes corresponding to the two-pole N-pole socket sleeves 34 and the E-pole socket sleeves 31 respectively on the floating frame 42 communicate with each other. .

In order to isolate the electrical gap between the three-pole N-pole socket 32 and the three-pole L-pole socket 33, as shown in Figures 5 and 6, between the three-pole N-pole socket 32 and the three-pole L-pole socket 33 A first vertical insulating partition a is provided, and the first vertical insulating partition a is used to isolate the electrical gap between the three-pole N-pole socket and the three-pole L-pole socket.

In order to effectively isolate the electrical gap between the three-pole N-pole socket and the three-pole L-pole socket through the first vertical insulating partition a, preferably, as shown in Figure 5 and Figure 6, on the floating frame 42, the fourth A first rib 421 is arranged between the escape hole 400 and the fifth escape hole 500, the fourth escape hole 400 and the fifth escape hole 500 are separated by the first rib 421, the first rib 421 is made of an insulating material, and the fourth escape hole 400 is separated from the fifth escape hole 500. The lower end of a vertical insulating partition a is fixed on the bottom wall of the base 1 , and the upper end is higher than the lower end of the first rib 421 . Thus, through the cooperation of the first vertical insulating partition a and the first rib 421 , an effective electrical gap isolation is performed between the three-pole N-pole socket 32 and the three-pole L-pole socket 33 .

In order to prevent interference between the first vertical insulating partition a and the pull-out locking mechanism 4, preferably, the upper end of the first vertical insulating partition a is located in the fifth avoidance hole 500, and the fifth avoidance hole 500 is not provided Pull out the locking mechanism 4 , thereby avoiding interference between the first vertical insulating partition a and the pulling out locking mechanism 4 .

Similarly, in order to isolate the electrical gap between the socket with the pull-out locking mechanism 4 in the two-pole socket and the E-pole socket 31, preferably, as shown in Figures 5 and 7, the two-pole socket is provided with A second vertical insulating partition b is provided between the socket with the pull-out locking mechanism 4 and the E-pole socket 31, and the second vertical insulating partition b is used to set the pull-out locking mechanism 4 in the two-pole socket. Electrical gap isolation is carried out between the socket of the socket and the E pole socket 31.

In order to effectively isolate the electrical gap between the socket provided with the pull-out locking mechanism 4 and the E pole socket 31 through the second vertical insulating partition b, preferably, as shown in FIG. 7 , the floating On the frame 42, between the first escape hole 100 and the third avoidance hole 200, a second partition rib 422 is provided, the first avoidance hole 100 and the third avoidance hole 200 are separated by the second partition rib 422, and the second partition rib 422 Made of insulating material, the lower end of the second vertical insulating partition b is fixed on the bottom wall of the base 1 , and the upper end is higher than the lower end of the second rib 422 . Thus, through the cooperation of the second vertical insulating partition b and the second rib 422 , an effective electrical gap isolation is performed between the two-pole socket provided with the pull-out locking mechanism 4 and the E-pole socket 31 .

In order to prevent interference between the second vertical insulating partition b and the pull-out locking mechanism 4 , preferably, as shown in FIG. 7 , the upper end of the second vertical insulating partition is located in the through hole. Since the pull-out locking mechanism 4 is not provided in the through hole, the interference between the second vertical insulating partition b and the pull-out locking mechanism 4 is avoided.

In the same way, in order to isolate the electrical gap between the sockets of the two-pole sockets that are not provided with the pull-out locking mechanism 4 and the E-pole socket 31, preferably, as shown in FIG. A third vertical insulating partition c is provided between the plug sleeve of the locking mechanism 4 and the E pole plug sleeve 31, and the third vertical insulating partition c is used for plugging the two-pole plug sleeves that are not provided with the pull-out locking mechanism 4. Electrical gap isolation is carried out between the sleeve and the E pole socket sleeve 31.

In order to facilitate the insertion of the plug pin 5 into the socket 3, in the prior art, both sides of the upper end of the socket 3 are usually bent outwards to form a socket flare, and when the E pole sockets 31 and the two poles are closely arranged When the upper ends of the N-pole socket 34 and the two-pole L-pole sockets 35 are provided with socket flares, interference is likely to occur between the bending parts of the upper ends of each adjacent two sockets. In order to avoid this problem, preferably, as shown in the figure As shown in 7, the upper end position of the E pole socket 31 is lower than the upper end position of the two-pole N pole socket 34 and the two pole L pole socket 35, so by changing the height position of the E pole socket 31, the E pole can be inserted The sleeve 31 , the two-pole N-pole socket 34 and the two-pole L-pole socket 35 are arranged in a staggered manner, which avoids interference between the bending parts of the upper ends of two adjacent sockets. This structure is simple and easy to implement.

It should be noted that, in order to form a socket expansion, the outward bending angle θ on both sides of the upper end of the socket should be greater than 0° and less than 90°. If the bending angle θ is greater than or equal to 90°, the socket expansion cannot be formed. mouth, which is not conducive to the insertion of the latch 5.

In the above embodiment, in order to effectively isolate the electrical gap between the sockets of the two-pole sockets that are not provided with the pull-out locking mechanism 4 and the E-pole socket 31, at the same time, in order to prevent the third vertical insulating partition c from interfering with the socket Interference occurs between the bending parts of the upper end of the sleeve. Preferably, as shown in FIG. 7, the lower end of the third vertical insulating partition c is fixed on the base 1, and the upper end position is lower than that of the two-pole socket. There is no pull-out locking mechanism The upper end position of the plug sleeve of 4 is higher than the upper end position of the E pole socket sleeve. Since the upper end position of the third vertical insulating partition c is higher than the upper end position of the E-pole socket, the E-pole socket 31 cannot be electrically connected to the sockets of the two-pole sockets that are not provided with the pull-out locking mechanism 4 in the lateral direction. Thereby, an effective electrical gap isolation is carried out between the sockets of the two-pole sockets that are not provided with the pull-out locking mechanism 4 and the E-pole socket 31. In addition, since the upper end position of the third vertical insulating partition c is lower than that of the two-pole sockets The position of the upper end of the plug-in sleeve without the pull-out locking mechanism 4 is not set in the sleeve, thereby avoiding the gap between the third vertical insulating partition c and the bending position of the upper end of the plug-in sleeve without the pull-out locking mechanism 4 in the two-pole plug-in sleeve. interfere.

Further, in order to isolate the electrical gap between the plug pin 5 inserted into the E-pole socket and the two-pole socket, preferably, as shown in Figure 7, the socket on the cover plate 2 opposite to the E-pole socket 31 is E pole jack, the back side of the cover plate 2, the position corresponding to the E pole jack is connected with the plug sleeve d that runs through the E pole jack, the pin sleeve d is made of insulating material, and the plug sleeve d is connected with the second insulating partition and the second insulation partition respectively. The three insulating partitions work together to isolate the electrical gap between the plug inserted into the E-pole socket and the two-pole socket. Thus, the E pole plug and the two-pole N pole socket 34 are blocked by the pin sleeve d, and the E pole plug and the two-pole L pole socket 35 are blocked by the pin sleeve d.

In the embodiment shown in FIG. 10 , a second rib 422 is provided between the first avoidance hole 100 and the third avoidance hole 200 on the floating frame 42 , and the first avoidance hole 100 and the third avoidance hole 200 are formed by the second The ribs 422 are separated. When both sides of the upper end of the sleeve 3 are bent outwards to form a plug flare, if the pin 5 is inserted into the sleeve 3, the pin 5 will easily stretch the sleeve 3 outward. , causing interference between the bent portion of the upper end of the socket 3 and the second rib 422 . In order to avoid the above problems, the following two specific implementation methods can be adopted to solve them:

The first specific implementation method: as shown in Figure 3, an avoidance groove 8 is provided on the second rib 422 corresponding to the edge of the expansion opening. When the bolt 5 is inserted into the sleeve 3, as shown in Figure 10 As shown, the bolt 5 can press the two clips included in the socket 3 outwards, so that the bending part at the upper end of the clip moves into the avoidance groove 8, thereby preventing the plug 5 from being inserted into the socket by setting the avoidance groove 8. Interference occurs between the bent part of the upper end of the plug-in sleeve 3 and the second rib 422 during the process of inserting the sleeve 3 .

The second specific implementation manner: as shown in FIG. 7 , the bending angle θ of the side of the plug-in flare close to the second rib 422 is 2-60°. Therefore, the bending angle θ at the insertion flare is less than 60° so that even after the socket is stretched by the pin 5, the bending part on it will not interfere with the second rib 422, and If the bending angle θ of the edge portion of the plug flare is less than 2°, the bending angle θ is too small, and it will be more difficult to insert the pin 5 into the socket 3 .

When pulling out and locking the latch 5 plugged on the socket 3 by pulling out the locking mechanism 4, in order to extract the latch 5 in the socket 3, the anti-off socket can be made into a structure as shown in Figure 8, that is, the base 1 is provided with an operating lever 7 outside, the floating frame 42 is provided with a first buckle 423, the operating lever 7 is provided with a second buckle 71, and the base 1 is provided with an escape gap (not shown), the first buckle The bit 423 passes through the avoidance gap and is interlocked with the second buckle bit 71 . Thus by manually pressing down the operating lever 7, the floating frame 42 can be driven to move downwards, so that the two friction members 43 installed on the floating frame 42 can break away from the inclined plane and the latch 5 (as shown in Figure 9). The plug can be pulled out normally.

In order to protect the five-hole socket against electric shock, the anti-drop socket can be made into a structure as shown in Figure 2, that is, the cover plate 2 includes a stacked front panel 21 and a partition 22, and the partition 22 is located on the front panel 21 close to the base 1 On one side, and between the front panel 21 and the partition 22, a two-pole protection door 23 is provided for the corresponding two-pole jack, and between the front panel 21 and the partition 22, a three-pole protection door 24 is provided for the corresponding three-pole jack. Thus, the five-hole socket is protected against electric shock through the two-pole protection door 23 and the three-pole protection door 24 .

Wherein, the specific structures of the two-pole protection door 23 and the three-pole protection door 24 are not limited, as long as the two-pole socket and the three-pole socket can be protected against electric shock respectively.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (17)

1. a kind of Anti-disconnecting socket, including base, the cover plate being covered on above the base, sleeve is provided with the base,

The sleeve includes relative and spaced two intermediate plates, is formed between two intermediate plates and inserting on the cover plate The corresponding slot in hole, and two intermediate plates clamp the latch by the opposite sides for inserting the latch of the slot respectively, its It is characterised by, the Anti-disconnecting socket also includes the extraction lock of the latch as described in an at least side lock in the other both sides of the latch Determine mechanism.

2. Anti-disconnecting socket according to claim 1, it is characterised in that the extraction locking mechanism includes that inclined-plane covers and can The floating shelf fluctuated in the base, the inclined-plane set is formed with the inclined-plane relative with the side wall of the latch, described The distance between inclined-plane and latch side wall are gradually reduced from the bottom to top, and the extraction locking mechanism also includes slotting for clamping The friction member of pin, the friction member is located between the inclined-plane and the latch, the friction member is mobilizable be installed on it is described On floating shelf, and can inclined-plane described in the drive lower edge in the floating shelf move up and down with abut with latch side wall or point From.

3. Anti-disconnecting socket according to claim 2, it is characterised in that the inclined-plane is two, two inclined-planes difference Side wall with the latch is relative, and the friction member is two, two friction members be respectively arranged at two inclined-planes with Between the latch.

4. Anti-disconnecting socket according to claim 2, it is characterised in that when floating shelf is moved downward to most in the base During lower position, the lower end position of the friction member is located at the lower section of the upper end position of the sleeve corresponding to it.

5. Anti-disconnecting socket according to claim 1, it is characterised in that can be by the extraction locking mechanism lock on the latch Fixed side side wall is extended transversely into outside the slot scope.

6. Anti-disconnecting socket according to claim 2, it is characterised in that the jack includes extremely inserting jacks by three and the two poles of the earth are inserted Jack is inserted in five holes of jack composition, and the sleeve includes extremely inserting the corresponding three pole sleeve of jack with described three and inserted with described the two poles of the earth The corresponding the two poles of the earth sleeve of jack, three pole sleeve includes E poles sleeve, three pole N poles sleeves and three pole L poles sleeves, described the two poles of the earth Sleeve includes being arranged at the two poles of the earth N poles sleeve and the two poles of the earth L poles sleeve of the E poles sleeve opposite sides, and the two poles of the earth N poles sleeve To the distance of the distance less than the two poles of the earth L poles sleeve to three pole N poles sleeve of three pole N poles sleeve, the extraction lock It is two to determine mechanism, and two extraction locking mechanisms are respectively used to locking and are inserted in the three pole L poles sleeve and the two poles of the earth N The latch on the sleeve of pole.

7. Anti-disconnecting socket according to claim 2, it is characterised in that the jack includes extremely inserting jacks by three and the two poles of the earth are inserted Jack is inserted in five holes of jack composition, and the sleeve includes extremely inserting the corresponding three pole sleeve of jack with described three and inserted with described the two poles of the earth The corresponding the two poles of the earth sleeve of jack, three pole sleeve includes E poles sleeve, three pole N poles sleeves and three pole L poles sleeves, described the two poles of the earth Sleeve includes being arranged at the two poles of the earth N poles sleeve and the two poles of the earth L poles sleeve of the E poles sleeve opposite sides, and the two poles of the earth N poles sleeve To the distance of the distance less than the two poles of the earth L poles sleeve to three pole N poles sleeve of three pole N poles sleeve, the extraction lock It is two to determine mechanism, and two extraction locking mechanisms are respectively used to locking and are inserted in the two poles of the earth L poles sleeve and the three pole N Latch on the sleeve of pole.

8. the Anti-disconnecting socket according to claim 6 or 7, it is characterised in that set on the floating shelf and in the sleeve of the two poles of the earth There is the corresponding position of sleeve for extracting locking mechanism to offer the first avoidance hole, on the floating shelf and in the two poles of the earth sleeve The corresponding position of sleeve for being not provided with extracting locking mechanism offers the second avoidance hole, on the floating shelf and E poles sleeve Corresponding position offers the 3rd avoidance hole.

9. Anti-disconnecting socket according to claim 8, it is characterised in that described second avoids hole and the described 3rd avoids hole phase Mutually it is formed through through hole.

10. the Anti-disconnecting socket according to claim 6 or 7, it is characterised in that extremely inserted with the three pole N on the floating shelf Cover position corresponding with the sleeve that extraction locking mechanism is provided with the sleeve of the three pole L poles and offer the 4th avoidance hole, it is described Position corresponding with the sleeve that extraction locking mechanism is not provided with the three pole N poles sleeve and three pole L poles sleeve on floating shelf Put and offer the 5th avoidance hole.

11. Anti-disconnecting socket according to claim 6 or 7, it is characterised in that three pole N poles sleeve and the three pole L poles Be provided with the first vertical insulating barrier between sleeve, the first vertical insulating barrier be used for the three pole N poles sleeve with it is described Electric clearance isolation is carried out between three pole L poles sleeves.

12. Anti-disconnecting sockets according to claim 8, it is characterised in that described extraction is provided with the two poles of the earth sleeve and is locked Determine to be provided with the second vertical insulating barrier between the sleeve of mechanism and E poles sleeve, it is right that the second vertical insulating barrier is used for Being provided with the sleeve of the two poles of the earth between the sleeve and E poles sleeve of extracting locking mechanism carries out electric clearance and isolates.

13. Anti-disconnecting sockets according to claim 12, it is characterised in that on the floating shelf, it is described first avoid hole and The second muscle is provided between 3rd avoidance hole, the first avoidance hole and the 3rd avoidance hole are separated by second muscle, and institute State the second muscle to be made by insulating materials, the second vertical insulating barrier lower end is fixed on the base, upper end is higher than institute State the lower end position of the second muscle.

14. Anti-disconnecting sockets according to claim 12, it is characterised in that described extraction is not provided with the two poles of the earth sleeve and is locked Determine to be provided with the 3rd vertical insulating barrier between the sleeve of mechanism and E poles sleeve, it is right that the 3rd vertical insulating barrier is used for Be not provided with extracting in the sleeve of the two poles of the earth carries out electric clearance and isolates between the sleeve and E poles sleeve of locking mechanism.

15. Anti-disconnecting sockets according to claim 14, it is characterised in that relative with E poles sleeve on the cover plate Jack is E poles jack, and the back side of the cover plate, the position of correspondence E poles jack are connected with the latch with the jack insertion of E poles Set, the pin bushing is made by insulating materials, and the pin bushing insulate with second insulating barrier and the described 3rd respectively Dividing plate mating reaction, isolates with to carrying out electric clearance between the latch and the two poles of the earth sleeve in insertion E poles sleeve.

16. Anti-disconnecting sockets according to claim 8, it is characterised in that on the floating shelf, described first avoid hole and the The second muscle is provided between three avoidance holes, the first avoidance hole and the 3rd avoidance hole are separated by second muscle, described to insert The upper end both sides of set to grafting enlarging is bent to form outside the slot, correspond to the grafting flared rim on second muscle Position offer escape groove, when the latch is plugged in the sleeve, the latch can be outwardly against the sleeve bag The intermediate plate for including, so that the bending part of the intermediate plate upper end is moved in the escape groove.

17. Anti-disconnecting socket according to claim 6 or 7, it is characterised in that the cover plate includes the front panel being stacked And dividing plate, the dividing plate be located at the front panel near the base side, and between the front panel and the dividing plate, it is right Answer described the two poles of the earth to insert jack and be provided with the two poles of the earth protection door, between the front panel and the dividing plate, corresponding described three extremely slotting jacks set There are three poles to protect door.