CN107221809B - Plug anti-drop self-locking mechanism and distribution socket capable of fixing plug - Google Patents

Abstract

The invention discloses a plug anti-drop self-locking mechanism, which comprises a connecting frame, wherein a hollow area is arranged in the middle of the connecting frame, inner cavity channels are arranged on two sides of the hollow area, and grooves are formed in the inner cavity channels and the hollow area; the inserting piece comprises an inserting part which can be inserted into the inner cavity channel in a matching way and is limited and fixed in the inner cavity channel and a locking piece which is fixedly connected with the inserting part and extends to the hollow area through the slot. The plug anti-drop self-locking mechanism adopts the external frame as the connecting structure to form a functional component with an independent structure, and can be buckled on any standard socket, so that the plug anti-drop self-locking mechanism has great universality.

Description

Plug anti-removal self-locking mechanism and distribution socket that can fix the plug

Technical field

The present invention relates to the technical field of self-locking sockets, and in particular to a self-locking mechanism for preventing plugs from coming off and a distribution socket that can fix the plug.

Background technique

The IEC plug of the existing power distribution unit needs to be locked to prevent the plug from suddenly falling off the socket during operation, resulting in equipment power outage and unnecessary losses. The plug-in part of the existing self-locking module used to fix the plug is set outside the product, which takes up a lot of space and reduces the number of sockets on each PDU product.

For example, the Chinese publication number: CN203562597U discloses a quick-installation plug anti-detachment self-locking mechanism, which includes a plug and a socket. The plug has a plug protrusion, and the socket has a first plug portion and a second plug portion arranged oppositely. The connecting portion also includes a claw, the claw includes a first claw, a connecting portion and a second claw connected in sequence, the ends of the first claw and the second claw respectively have outwardly extending The first locking protrusion, the middle part of the first claw and/or the middle part of the second claw has a plug fixing part extending inward. When the plug is inserted into the socket, the third A claw is inserted into the first plug-in part, the second claw is inserted into the second plug-in part, the plug fixing part presses the plug protruding part, and the first locking protrusion and The first plug-in part and the second plug-in part are offset.

Although the above patent realizes plug locking, the self-locking structure mainly moves the claw on one side to fix the plug. Two PDUs are usually placed side by side in the cabinet, and there are many devices and wires. It is necessary to unlock the one-sided buckle. If the movement is too long, it may interfere with nearby equipment or the power cord, making it impossible to operate, making it difficult to lock the plug.

Contents of the invention

The object of the present invention is to provide a plug anti-detachment self-locking mechanism and a distribution socket that can fix the plug in order to solve the technical defects existing in the prior art.

The technical solutions adopted to achieve the purpose of the present invention are:

A plug anti-removal self-locking mechanism, including:

The connecting frame has a hollow area in the middle, and inner cavity channels are provided on both sides of the hollow area, and a slot is provided between the inner cavity channel and the hollow area;

The insertion piece includes an insertion portion that can be matched and inserted into the inner cavity channel and is limited and fixed therein, and a locking piece that is fixedly connected to the insertion portion and extends through the slot to the hollow area.

The plug-in piece is a U-shaped plug-in piece, which includes two plug-in parts on both sides and a connecting section connecting the two plug-in parts. A notch is formed on the inner side of the middle part of the connecting section.

There are two U-shaped inserts, which are inserted from both sides of the connecting frame.

A locking mechanism is formed at the inner end of the inner cavity channel and the end of the plug portion.

The locking mechanism includes a lock hook formed at the inner end of the plug portion, and a limiting protrusion matchingly provided at the inner end of the inner cavity channel and corresponding to the lock hook.

The front side of the lock hook is a bevel and the rear side is a vertical surface. An anti-falling platform is formed on the outside of the inner cavity channel. The outer side of the anti-loosing platform is a sloped surface and the inner side is a vertical surface.

The part of the inner cavity channel outside the limiting protrusion is a bell mouth that gradually increases in the thickness direction of the locking piece so that the plug-in part can be inserted. The height of the inner cavity channel part inside the limiting protrusion is equal to that of the plug-in part. match.

A distribution socket with a fixable plug, characterized by comprising a shell, a plurality of unit socket modules fixedly connected to the shell, and the plug anti-detachment fixedly connected to the unit socket modules in one-to-one correspondence A self-locking mechanism, the locking piece locks the plug connected to the unit socket module.

A plurality of hooks corresponding to the upper frame edge of the unit socket module are provided around the bottom surface of the connection frame, and a clearance corresponding to the hooks is formed on the upper panel of the housing.

Compared with the prior art, the beneficial effects of the present invention are:

The plug anti-detachment self-locking mechanism of the present invention uses an external frame as the connecting structure to form a functional component with an independent structure. The plug anti-detachment self-locking mechanism can be buckled on any standard socket and has great versatility. characteristics, such as snapping together with the standard C13 module on the market to form a new module. At the same time, the plug-in blade of the present invention is connected inside the connection frame, and has higher reliability when pulling out the plug upwards, and the plug-in blade will not pop out and fly out, and the plug-in blade is assembled inside the connection frame to greatly maximize the reliability. It saves space and increases the number of socket locations on each PDU product.

Description of the drawings

Figure 1 shows a schematic diagram of the disconnection-proof and self-locking structure of the plug according to the present invention.

Figure 2 shows a schematic diagram of the anti-removal and self-locking structure of the plug in the semi-inserted state of the present invention.

Figure 3 shows a schematic diagram of the locking state of the anti-removal and self-locking structure of the plug of the present invention.

FIG. 4 shows a schematic cross-sectional view of FIG. 3 .

Figure 5 shows a schematic diagram of the assembly state of the plug anti-detachment self-locking mechanism;

Figure 6 shows a partial enlarged schematic diagram of the connection;

Figure 7 shows a schematic diagram of the usage state.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

As shown in the figure, the present invention discloses a plug anti-removal self-locking mechanism, which includes:

The connecting frame 1 has a hollow area 11 in the middle, and inner cavity channels 13 on both sides of the hollow area. The inner cavity channel communicates with the hollow area through slots 12, and the inner cavity channel allows the plug to pass through. Through holes or openings, generally, the connecting frame is a square structure;

The insert 2 includes a plug portion 21 that can be matched and inserted into the inner cavity channel without being constrained and fixed therein, and a plug portion 21 fixedly connected to the plug portion and extending through the slot 12 to the hollow area. Locking plate 22. The plug-in part is a square rod, a round rod or a sheet-shaped structure. The locking piece extends axially synchronously with respect to the plug-in part and is integrally formed on the top, middle or bottom of the plug-in part.

The plug anti-detachment self-locking mechanism of the present invention uses an external frame as the connecting structure to form a functional component with an independent structure. The plug anti-detachment self-locking mechanism can be buckled on any standard socket and has great versatility. characteristics, such as snapping together with the standard C13 module on the market to form a new module. At the same time, the plug-in blade of the present invention is connected inside the connection frame, and has higher reliability when pulling out the plug upwards, and the plug-in blade will not pop out and fly out, and the plug-in blade is assembled inside the connection frame to greatly maximize the reliability. It saves space and increases the number of socket locations on each PDU product.

Example 1

As shown in the figure, this embodiment discloses a plug anti-detachment self-locking mechanism, which includes a square connecting frame 1 and two U-shaped inserts 2. A hollow area is provided in the middle of the connecting frame 1 for the plug to pass through. 11. Inner cavity channels 13 are provided on opposite sides of the connection frame. The inner cavity channel communicates with the hollow area through the slot 12; the insert piece includes a plug-in part 21 and a locking piece 22, and the plug-in part 21 matches. It is inserted into the inner cavity channel 13 and is limited and fixed therein. The locking piece 22 used to fix the plug extends through the slot to the hollow area 11 to interfere with the step of the plug to form a lock, so that the plug 50 will not fall off. , a step is formed on the main body of the plug, which is similar to the prior art and will not be described further here. Preferably, the contact position between the locking piece and the step of the plug is located at the four corners of the plug, adopting a four-point positioning method. The cross-section of the plug is a square with four corners having arc or straight chamfers. At the same time, the hollow area also has a structure with corresponding four corners having arc or straight chamfers. The connecting frame has a square structure and the middle hollow area has arc chamfers. Angle or linear chamfer structure, the locking piece and the plug-in part constitute an L-shaped plate structure, the vertical plate serves as the plug-in part, and the horizontal plate constitutes the locking piece, the horizontal plate can be formed with the steps of the plug after being inserted put one's oar in.

The U-shaped plug includes two plug-in parts on both sides and a connecting section 24 connecting the two plug-in parts. The connection frame is inserted from both sides respectively, that is, the two U-shaped plugs can realize the two plugs. Side synchronous locking ensures the plug connection status. There are two U-shaped inserts and they are moved on both sides, which reduces the stroke required for unlocking. They are stuck at the four corners of the plug. The four-point positioning is firm and stable. The stroke is about one side. 1/3 of the moving claw stroke. Due to the reduction of the operating stroke, problems such as interference with the equipment next to it and inability to operate are avoided.

Of course, for the present invention, the U-shaped insert can also be inserted in a single-sided manner, such as arranging a single-sided insert in a larger space outside, and it can further enhance the flexibility of the product design by cooperating with the inserts on both sides. .

Among them, in order to prevent the locking piece and the step from leaving the locked state, a locking mechanism is formed on the inner end of the inner cavity channel and the end of the plug-in part. Specifically, the locking mechanism includes a locking mechanism formed on the inner end of the plug-in part. The lock hook, and the limit protrusion matchingly provided at the inner end of the inner cavity channel and corresponding to the lock hook, the cross section of the limit protrusion is triangular or spherical, that is, both sides are inclined surfaces Or a circular arc surface. As one specific embodiment, the protruding direction of the lock hook is toward the side of the hollow area, so that the vibration in the pull-out or insertion direction will not affect the locking effect, or the lock hook The protruding direction is the side of the plug pull-out direction. By pressing with the pre-stressed force of the plug, it is guaranteed not to come out. Only by pressing the socket downward can it be pulled out, further improving the locking effect.

Second specific embodiment

This specific embodiment has the same main structure as the first specific embodiment, and also includes a connecting frame and a U-shaped insert. Based on the above structural features, in order to improve the insertion effect and product performance, the outside of the inner cavity channel is formed There is an anti-detachment platform, the outer side of the anti-detachment platform is a bevel, the inner side is a vertical surface, the front side of the lock hook is a bevel and the rear side is a vertical surface, the inner and outer sides are based on the entrance side of the inner cavity channel. Outside, the end or center of the lumen channel is described as being inside.

Set up an anti-falling table. When the insert is inserted into the connection frame, the inner bevel guide deforms the lock hook so that it can be inserted into the inner cavity channel. After insertion, the two facades become opposite surfaces. The more the insert moves outward, the tighter it will be. The insert cannot be detached. The inserts are designed with an anti-falling structure and will not fall off, thus avoiding the problem of losing the inserts.

Third specific embodiment

This specific embodiment has the same main structure as the first or second specific embodiment, and also includes a connecting frame and a U-shaped insert. Based on the above structural features, in order to improve the plug-in effect and product performance, the U-shaped insert is A notch 23 is formed inside the middle part of the connecting section. At the same time, the two plug-in parts are drawn inwards, forming an inner eight-shaped structure. Because the lock hooks at the ends of the plug-in parts exist, only the ends are present during the insertion process. If there is friction at the top, other parts of the plug-in rod will reduce friction with the inner wall surface of the inner cavity channel, so that the plug-in blade can operate smoothly in the module and reduce friction.

Furthermore, the part of the inner cavity channel 13 outside the limiting protrusion is a bell mouth that gradually increases in the thickness direction of the locking piece to facilitate insertion of the plug part, and the height of the inner cavity channel 13 inside the limiting protrusion is the same as that of the bell mouth. The plug-in parts match. Taking the limit protrusion as the turning point, when the lock plug is operated, the guide space before reaching the limit protrusion is very large, and gradually decreases through the guide space. The friction force in the front section is very small, and the gap between the limit protrusion and the lock hook is The effect constitutes a feedback. When this point is crossed, the friction increases. When the connecting edge of the connecting frame is inserted into the notch of the insert, the insert part also enters the locking position, providing both tactile and visual feedback. , improve the interaction between users and products, and enhance the use experience.

Fourth specific embodiment

This embodiment discloses a distribution socket that can fix plugs, including a shell, such as a PDU shell, a plurality of unit socket modules 30 fixed on the PDU shell panel 40, and a one-to-one fixed connection with the unit socket modules 30. The plug is provided with a self-locking mechanism to prevent the plug from coming off. Furthermore, four hooks 14 are provided around the bottom surface of the connection frame 1, and a clearance corresponding to the hooks is formed on the upper panel of the housing. First, the edge of the unit socket module 30 is clamped by the hook 14 to form a latching fixation. Then, the connection hook 31 of the unit socket module 30 is used to securely connect to the shell. At the same time, the opening on the upper panel will form a gap on the outer side of the hook. Holding the limit, this hook will be stuck on the panel after the socket module, especially the plug anti-detachment self-locking mechanism of the present invention, is fastened and assembled on the panel and will not fall off. That is, the connection frame 10, the unit socket module 30 and the PDU housing upper panel 40 are fixed. This structure allows the insert 2 to be assembled into the product, saving space and effectively increasing the number of sockets on each PDU product. The plug's self-locking anti-removal mechanism is an independent structure and can be applied to any standard socket and has great versatility. Among them, the connection between the connection frame and the unit socket module can also be of other types, such as welding or other forms of snap connection.

The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can also make several improvements and modifications without departing from the principles of the present invention. These improvements and Retouching should also be considered within the scope of the present invention.

Claims (9)

1. A plug anti-drop self-locking mechanism is characterized by comprising,

the connecting frame is provided with a hollow area in the middle, inner cavity channels are arranged on two sides of the hollow area, and grooves are formed in the inner cavity channels and the hollow area;

the inserting piece comprises an inserting part which can be inserted into the inner cavity channel in a matched mode and is limited and fixed in the inner cavity channel, and a locking piece which is fixedly connected with the inserting part and penetrates through the slot to extend to a hollow area, wherein the locking piece and the inserting part form an L-shaped plate structure, a vertical plate is used as the inserting part, a locking piece is formed by a transverse plate, the transverse plate can be interfered with a step of a plug after being inserted, and the contact position of the locking piece and the step of the plug is located at four corners of the plug in a four-point positioning mode.

2. The plug anti-falling self-locking mechanism according to claim 1, wherein the plug-in sheet is a U-shaped plug-in sheet, and comprises two plug-in parts on two sides and a connecting section for connecting the two plug-in parts, and a notch is formed on the inner side of the middle part of the connecting section.

3. The plug anti-falling self-locking mechanism according to claim 2, wherein the number of the U-shaped inserting pieces is two, and the U-shaped inserting pieces are respectively inserted from two sides of the connecting frame.

4. The plug anti-drop self-locking mechanism according to claim 1, wherein the inner end of the cavity channel and the end of the plug-in part are formed with locking mechanisms.

5. The plug anti-disengagement self-locking mechanism of claim 4, wherein the locking mechanism comprises a latch hook formed at the inner end of the plug-in part, and a limit protrusion which is arranged at the inner end of the inner cavity channel in a matching way and corresponds to the latch hook.

6. The plug anti-disengagement self-locking mechanism of claim 5, wherein the front side of the latch hook is an inclined plane, the rear side of the latch hook is a vertical plane, an anti-disengagement table is formed on the outer side of the inner cavity channel, the outer side of the anti-disengagement table is an inclined plane, and the inner side of the anti-disengagement table is a vertical plane.

7. The plug anti-falling self-locking mechanism according to claim 5, wherein the part of the inner cavity channel outside the limiting protrusion is a horn mouth which is gradually increased in the thickness direction of the locking plate so as to facilitate the insertion of the plug-in part, and the height of the inner cavity channel part inside the limiting protrusion is matched with the height of the plug-in part.

8. A distribution socket capable of fixing plugs, which is characterized by comprising a shell, a plurality of unit socket modules fixedly connected with the shell, and a plug anti-falling self-locking mechanism as claimed in any one of claims 1-7 fixedly connected with the unit socket modules in one-to-one correspondence, wherein the locking plate locks plugs connected with the unit socket modules.

9. The plug-fixable dispensing socket of claim 8 wherein a plurality of hooks corresponding to the upper frame edge of said unit socket module are provided around the bottom surface of the connection frame, and a vent corresponding to said hooks is formed in the upper panel of said housing.