Fabricated low-voltage quick access box

Abstract

The invention, which relates to the technical field of the electrical equipment, discloses an assembly-type low-voltage rapid access box comprising a box body, jacks distributed in the box body in an array manner, and plugs movably plugged in the jacks. The dust falling assemblies are distributed in the socket in an equal-angle mode and fall dust based on vibration when the plug is plugged and unplugged, the elastic reset assemblies are arranged at the opening and the back face of the socket respectively and used for elastically resetting expansion and contraction closing of the dust falling assemblies, and the dust collecting plate is arranged in the socket in a sliding mode. The dust falling assembly comprises a limiting plate fixedly connected to one end of the socket and a clamping shifting piece which is arranged on one side of the limiting plate in a sliding mode and is extruded, expanded and vibrated to fall dust on the basis of the plug, and vibration grooves distributed at equal angles are formed in the limiting plate. According to the quick access box interface, the problem that dust or metal powder is left in the interface due to environmental dust invasion, plugging friction, coating oxidation and the like during long-term butt joint use of an existing quick access box interface is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to an assembled low-voltage quick access box. BACKGROUND

[0002] The assembled low-voltage quick access box is used for power distribution and control of electrical equipment, and provides power-off protection when overloading, short circuit and leakage occur in the circuit. It has the characteristics of quick access, for example, in some emergency scenarios, it can quickly connect the emergency generator car and the urban power grid through the plug and socket interface.

[0003] The low-voltage emergency access device of the power generation vehicle disclosed in CN105449828A can realize live working, has simple structure, can solve the problem of limited cable length of the power generation vehicle, and enables the power generation vehicle to be safely, reliably and quickly connected to the low-voltage busbar of the user, but there are still some deficiencies in the existing low-voltage quick access box.

[0004] The interface of the existing quick access box will cause dust or metal powder to remain inside the interface due to environmental dust invasion, plug friction and plating oxidation after long-term docking use. First, the dust adheres to the conductive contact surface of the interface (such as a round roller and a plug metal sheet), which increases the contact resistance and causes abnormal heating due to the Joule effect when power is on. Long-term use may cause insulation layer aging and melting, and even cause a fire. Secondly, if the dust contains conductive impurities (such as metal oxide powder), a conductive channel may be formed between different electrodes of the interface, causing inter-phase short circuit or ground leakage, triggering the misoperation of the leakage protector, and even causing the risk of electric shock.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original assembled low-voltage quick access box. SUMMARY

[0006] The technical solution of the present application provides a significantly different solution from the prior art to solve the problem that the existing quick access box interface will cause dust or metal powder to remain inside the interface due to environmental dust invasion, plug friction and plating oxidation after long-term docking use. The purpose of the present application is to provide an assembled low-voltage quick access box to solve the above-mentioned problems.

[0007] In order to achieve the above object, the present application provides the following technical scheme: an assembled low-voltage quick access box, comprising a box body, sockets arranged in an array on the box body, and plugs movably connected to the sockets, further comprising a dust falling assembly arranged in the sockets in an equiangular manner and capable of expanding and falling dust based on the plugs, an elastic reset assembly arranged at the opening and back of the socket for elastically resetting the dust falling assembly, and a dust collecting plate slidably arranged in the socket and capable of being taken out under the traction of the plug and having elastic reset; The dust falling assembly comprises a limiting plate fixedly connected to one end of the socket and a clamping piece slidably arranged on one side of the limiting plate and capable of expanding and falling dust under the extrusion of the plug. The elastic reset assembly comprises a sliding rod fixedly connected to one end of the clamping piece and arranged in the vibration groove, a sliding block fixedly connected to one end of the sliding rod, and a connecting piece arranged on the outer wall of the clamping piece.

[0008] Preferably, the dust falling assembly further comprises a limiting groove arranged in the inner wall of one end of the clamping piece, which is used to assist in fixing the plug in the socket.

[0009] Preferably, the elastic reset assembly further comprises a third spring fixedly connected to the top of the sliding block and a first spring fixedly connected to the top of the connecting piece.

[0010] Preferably, the bottom of the socket is provided with a dust collecting groove, which is located directly below the clamping piece, and the grooves on both sides of the dust collecting groove are inclined.

[0011] Preferably, the dust collecting plate is slidably arranged in the dust collecting groove, one end of the dust collecting plate is fixedly connected with traction springs arranged in an equiangular manner, and the inner wall of the other end of the dust collecting plate is fixedly connected with push rods arranged in a symmetrical manner.

[0012] Preferably, the surface of the dust collecting plate is inclined to discharge dust from high to low.

[0013] Preferably, one end of the plug is fixedly connected with a circular metal sheet, the grooves on both sides of one end of the circular metal sheet are provided with a contraction groove, a pressing plate is slidably arranged in the contraction groove, one end of the pressing plate is fixedly connected with a contraction rod, the end of the contraction rod is in contact with the push rod, and a second spring is arranged between the pressing plate and the inner wall of the contraction groove.

[0014] Preferably, the outer wall of the other end of the circular metal sheet is sleeved with a rotating ring, and the rotating ring is matched with the limiting groove.

[0015] Preferably, the grooves on both sides of the limiting groove are arc-shaped surfaces for taking out the rotating ring under force.

[0016] Preferably, the initial sliding groove of the vibration groove is a vertical sliding groove, and the middle part of the vibration groove is a curved sliding groove.

[0017] The present application has the following advantages compared with the prior art: 1. When the plug is inserted into the socket, the round metal sheet at the end of the plug is inserted into the socket synchronously, the actuating ring on the outer wall initially contacts the clamping actuating sheet, the clamping actuating sheet is expanded, the slide rod at one end of the clamping actuating sheet slides in the vibration groove, the slide rod moves linearly in the vertical slide groove, then the slide rod contacts the curved slide groove, forces the clamping actuating sheet to vibrate slightly, shakes off the dust or interface plating powder attached to the surface, the shaken-off dust falls into the dust collecting groove at the bottom of the socket, the inclined notch of the dust collecting groove can assist in guiding the dust to fall on the dust collecting plate in cooperation with the pressure generated when the plug is inserted, when the plug is pulled out, the end of the contraction rod extrudes the actuating rod, drags the dust collecting plate to slide out along the dust collecting groove, after the dust collecting plate is taken out, the surface is designed to be inclined to make the dust slide down from the high position to the outside by gravity, and the cleaning is completed. 2. When the plug is completely inserted, the elastic reset assembly is activated to reset, the third spring on the top of the slide block and the first spring on the top of the connecting sheet jointly act, push the slide rod and the clamping actuating sheet back to the original position, make the clamping actuating sheet closely adhere to the outer wall of the plug, and are fixed by the limiting groove, form a self-locking effect, and prevent the plug from loosening. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the overall structure of the quick access box of the present application.

[0019] Figure 2 It is a schematic view of the plug and the socket in the docking state.

[0020] Figure 3 It is a schematic view of the plug in the pulled-out state and the structure of the dust collecting plate.

[0021] Figure 4 It is a schematic view of the plug in the inserted state and the partial sectional view of the socket.

[0022] Figure 5 It is a schematic view of the structure of the socket from another angle.

[0023] Figure 6 It is a schematic view of the structure of the plug.

[0024] Figure 7 It is an enlarged schematic view of the structure at A of Figure 5

[0025] Figure 8 It is an enlarged schematic view of the structure at B of Figure 5

[0026] ​​In the figure: 1, box; 2, socket; 3, plug; 301, round metal sheet; 4, dust collecting plate; 401, lever; 5, clamping lever; 6, limiting groove; 7, rotating ring; 8, first spring; 801, connecting piece; 9, retractable rod; 901, pressing plate; 10, second spring; 11, dust collecting groove; 12, limiting plate; 13, vibration groove; 14, sliding rod; 15, sliding block; 16, third spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to Figures 1 to 8 The present application provides a technical solution: a fabricated low-voltage rapid access box, comprising a box 1, sockets 2 arranged in an array on the box 1, and plugs 3 movably inserted into the sockets 2, further comprising a dust falling assembly arranged in the sockets 2 based on the plugs 3 to expand and vibrate to fall dust, an elastic resetting assembly arranged at the opening and back of the socket 2 to elastically reset the dust falling assembly to expand and contract, and a dust collecting plate 4 slidably arranged in the socket 2 to be taken out and elastically reset by the plug 3. The dust falling assembly comprises a limiting plate 12 fixedly connected to one end of the socket 2 and a clamping lever 5 slidably arranged on one side of the limiting plate 12 to expand and vibrate to fall dust based on the plug 3, and the limiting plate 12 is provided with vibration grooves 13 arranged in an equal angle. The elastic resetting assembly comprises a sliding rod 14 fixedly connected to one end of the clamping lever 5 and arranged in the vibration groove 13, a sliding block 15 fixedly connected to one end of the sliding rod 14, and a connecting piece 801 arranged on the outer wall of the clamping lever 5.

[0029] As the embodiment, when the plug 3 is inserted into the socket 2, the clamping tab 5 in the dust falling assembly is triggered to slide in the vibration groove 13 and expand, and the clamping tab 5 slides and generates slight vibration through the vibration groove 13, so that the dust or plated powder remaining after the interface connection is shaken off, and then the dust falls to the bottom of the socket 2 (when the plug 3 is still being inserted into the socket 2, the gap in the socket 2 is compressed due to the insertion of the plug 3, so that the dust falling to the bottom of the socket 2 is assisted to enter the dust collecting plate 4 for collecting dust through the pressure of the plug 3), and after the plug 3 is completely inserted into the socket 2, the clamping tab 5 is reset by the elastic reset assembly and tightly adheres to the outer wall of the plug 3 and generates a certain self-locking effect on the plug 3, when the plug 3 needs to be pulled out, the plug 3 is pulled out, the clamping tab 5 is driven to slide in the vibration groove 13 again, and the clamping tab 5 is vibrated again to shake the dust onto the dust collecting plate 4, and the dust collecting plate 4 is taken out synchronously with the dust collecting plate 4 (one end of the dust collecting plate 4 is provided with a reset structure, the stress design of which is slightly smaller, when the dust collecting plate 4 slides to the limit of the stress of the reset structure, the reset structure will squeeze the traction structure on both sides of the plug 3, so that the dust collecting plate 4 is reset back into the socket 2 through the reset structure after the plug 3 is pulled out), in addition, when the dust collecting plate 4 is taken out, the dust on the surface of the dust collecting plate 4 can be discharged out of the socket 2, so that the whole dust cleaning process is completed.

[0030] The dust falling assembly further comprises a limiting groove 6 opened in the inner wall of one end of the clamping tab 5, which is used to assist the plug 3 to be fixed in the socket 2.

[0031] As the embodiment, when the plug 3 is inserted into the socket 2 and the clamping tab 5 is reset and tightly adheres to the outer wall of the plug 3 under the action of the elastic reset assembly, the limiting groove 6 can play an auxiliary adhering role with the outer wall of the plug 3, further enhancing the fixing effect of the plug 3 in the socket 2, and effectively preventing the plug 3 from loosening or falling off due to external factors (such as slight vibration, pulling, etc.) during use.

[0032] The elastic reset assembly further comprises a third spring 16 fixedly connected to the top of the sliding block 15 and a first spring 8 fixedly connected to the top of the connecting piece 801.

[0033] As the embodiment, the third spring 16 is fixedly connected to the top of the sliding block 15, which can provide elastic restoring force for the sliding of the sliding block 15 in the vibration groove 13, so that the sliding block 15 can be quickly reset under the action of the third spring 16 after being moved by external force. Meanwhile, the first spring 8 is fixedly connected to the top of the connecting piece 801, which can cooperate with the third spring 16 to assist the clamping tab 5 to realize stable elastic reset after completing the expansion and vibration dust falling action, so that the clamping tab 5 can tightly adhere to the outer wall of the plug 3.

[0034] The bottom of the socket 2 is provided with an ash collecting groove 11, which is located directly below the clamping toggle 5, and the two side slots of the ash collecting groove 11 are inclined.

[0035] As an embodiment, the ash collecting groove 11 is located directly below the clamping toggle 5, which ensures that when the clamping toggle 5 vibrates due to the plugging and unplugging of the plug 3, the dust or plating powder can fall into the ash collecting groove 11 smoothly. In addition, the two side slots of the ash collecting groove 11 are designed to be inclined, so that when the plug 3 is still inserted into the socket 2, the internal gap of the socket 2 is compressed due to the insertion of the plug 3, and the dust falling on the bottom of the socket 2 is guided to the ash collecting groove 11 better by the pressure of the plug 3 insertion, avoiding the accumulation of dust around the slot, and further improving the dust collecting effect.

[0036] The ash collecting plate 4 is slidingly arranged in the ash collecting groove 11, and one end of the ash collecting plate 4 is fixedly connected with traction springs arranged at equal angles, and the inner wall of the other end is fixedly connected with toggle rods 401 arranged symmetrically.

[0037] The surface of the ash collecting plate 4 is inclined to allow the dust to fall from high to low.

[0038] As an embodiment, first, the reset structure at one end of the ash collecting plate 4 is the traction spring. When the plug 3 is pulled out and pulls the toggle rod 401 on the inner wall of the ash collecting plate 4, the toggle rod 401 drives the ash collecting plate 4 to be taken out synchronously, and the traction spring is elastically deformed and stores elastic potential energy due to the sliding of the ash collecting plate 4. When the ash collecting plate 4 slides to the stress limit of the traction spring, the toggle rod 401 is pressed by the traction structure on both sides of the plug 3 and is retracted, and then the traction spring provides elastic restoring force to the ash collecting plate 4 through elastic reset, so that the ash collecting plate 4 is reset to the ash collecting groove 11 in the socket 2.

[0039] One end of the plug 3 is fixedly connected with a circular metal sheet 301, two sides of one end of the circular metal sheet 301 are provided with retraction grooves, a pressing plate 901 is slidingly arranged in the retraction groove, one end of the pressing plate 901 is fixedly connected with a retraction rod 9, the end of the retraction rod 9 is in contact with the toggle rod 401, and a second spring 10 is arranged between the pressing plate 901 and the inner wall of the retraction groove.

[0040] The outer wall of the other end of the circular metal sheet 301 is sleeved with a toggle ring 7, and the toggle ring 7 is matched with the limiting slot 6.

[0041] The two side slots of the limiting slot 6 are arc surfaces for the toggle ring 7 to be taken out under stress.

[0042] As the embodiment, when the plug 3 is inserted into the socket 2, the circular metal sheet 301 moves synchronously with the plug 3, and drives the knob 7 to enter the limiting slot 6, and the preliminary positioning is realized by the contact and fitting of the arc surface of the limiting slot 6; at the same time, the contraction rod 9 contacts one side of the push rod 401 and is contracted in the process of the plug 3 being inserted, and the pressing plate 901 compresses the second spring 10. When the plug 3 is completely inserted, the second spring 10 resets, pushes the pressing plate 901 and the contraction rod 9 back to the original position, and ensures that the contraction rod 9 is located on the other side of the push rod 401. When the plug 3 needs to be pulled out, the plug 3 is pulled outwards, the circular metal sheet 301 drives the knob 7 to separate from the limiting slot 6, and the contraction rod 9 slides due to the pulling action of the plug 3, and synchronously drives the push rod 401 to move outwards, so that the dust collecting plate 4 slides out and squeezes the traction spring. When the stress of the traction spring reaches the limit, the push rod 401 starts to squeeze the contraction rod 9, so that the contraction rod 9 is contracted in the contraction slot, so that the dust collecting plate 4 is reset in the dust collecting groove 11 through the traction spring, and the plug 3 is disconnected with the socket 2.

[0043] The initial sliding groove of the vibration groove 13 is a vertical sliding groove, and the middle part is a curved sliding groove.

[0044] As the embodiment, when the clamping push piece 5 preliminarily slides through the vertical sliding groove, and when each clamping push piece 5 preliminarily slides and has a certain interval, the slide rod 14 at one end contacts the curved sliding groove, so that the clamping push piece 5 starts to vibrate, so that the dust on the clamping push piece 5 is shaken and falls on the dust collecting plate 4 in the dust collecting groove 11.

[0045] Working principle: when the assembled low-voltage quick access box is used, 1. Insertion stage: when the plug 3 is inserted into the socket 2, the circular metal sheet 301 at the end of the plug 3 is inserted into the socket 2 synchronously with the plug 3, and the knob 7 on the outer wall preliminarily contacts the clamping push piece 5, so that the clamping push piece 5 is expanded, and the slide rod 14 at one end of the clamping push piece 5 slides in the vibration groove 13. The slide rod 14 moves linearly in the vertical sliding groove, and then the slide rod 14 contacts the curved sliding groove, forcing the clamping push piece 5 to vibrate slightly, shaking the dust or interface plating powder attached to the surface of the clamping push piece 5, and the shaken dust falls into the dust collecting groove 11 at the bottom of the socket 2. The inclined slot of the dust collecting groove 11 can assist in guiding the dust to fall on the dust collecting plate 4 in cooperation with the pressure generated when the plug 3 is inserted; 2. After complete insertion: when the plug 3 is completely inserted, the elastic reset assembly starts to reset, the third spring 16 at the top of the sliding block 15 and the first spring 8 at the top of the connecting piece 801 jointly act, push the slide rod 14 and the clamping push piece 5 back to the original position, so that the clamping push piece 5 is tightly attached to the outer wall of the plug 3, and is fixed by the limiting slot 6 to form a self-locking effect, preventing the plug 3 from loosening; 3. Pull-out stage: when the plug 3 needs to be pulled out, pull the plug 3 outwards, the circular metal sheet 301 drives the knob 7 to disengage from the limiting slot 6 (the arc surface reduces resistance), at the same time, the contraction rod 9 slides due to the movement of the plug 3, the plug 3 is pulled out to drive the clamping piece 5 to slide again, the second vibration is generated through the vibration slot 13, the residual dust is shaken and falls on the surface of the dust collecting plate 4, the end of the contraction rod 9 extrudes the push rod 401, the dust collecting plate 4 is pulled out along the dust collecting groove 11, the traction spring reset structure is stretched to store elastic potential energy. When the dust collecting plate 4 slides to the stress limit of the traction spring, the push rod 401 pushes the contraction rod 9 back, so that it is contracted into the contraction slot, the traction spring releases the elastic potential energy, and pushes the dust collecting plate 4 to automatically reset to the dust collecting groove 11; 4. Final stage: after the dust collecting plate 4 is taken out, the surface is designed to be inclined, so that the dust slides from the high position to the outside by gravity, the cleaning is completed, and after the plug 3 is completely pulled out, each component is restored to the initial position through the elastic reset component, and waits for the next use.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An assembled low-voltage quick access box, comprising a box body (1), a plurality of sockets (2) arranged on the box body (1), and a plurality of plugs (3) movably plugged into the sockets (2), characterized in that: It also includes a dust falling assembly arranged in an equiangular distribution in the socket (2) to expand and shake dust falling based on the plug (3) being plugged in and out, an elastic reset assembly arranged at the opening and back of the socket (2) to elastically reset the expansion and contraction of the dust falling assembly, and a dust collecting plate (4) slidingly arranged in the socket (2) and being pulled out by the plug (3) and having elastic reset; The dust falling assembly includes a limiting plate (12) fixedly connected to one end of the socket (2) and a clamping paddle (5) slidingly arranged on one side of the limiting plate (12) to expand and shake dust falling based on the plug (3) being pressed; The elastic reset assembly includes a sliding rod (14) fixedly connected to one end of the clamping paddle (5) and arranged in the vibration groove (13), a sliding block (15) fixedly connected to one end of the sliding rod (14), and a connecting piece (801) arranged on the outer wall of the clamping paddle (5).

2. The prefabricated low-voltage quick-access box according to claim 1, characterized in that: The dust falling assembly further includes a limiting groove (6) opened in the inner wall of one end of the clamping paddle (5), which is used to assist in fixing the plug (3) in the socket (2).

3. The prefabricated low-voltage quick-access box according to claim 1, characterized in that: The elastic reset assembly further includes a third spring (16) fixedly connected to the top of the sliding block (15) and a first spring (8) fixedly connected to the top of the connecting piece (801).

4. The prefabricated low-voltage quick-access box according to claim 1, characterized in that: The bottom of the socket (2) is provided with a dust collecting groove (11), which is located directly below the clamping paddle (5), and the grooves on both sides of the dust collecting groove (11) are inclined.

5. The prefabricated low-voltage quick-access box according to claim 1, characterized in that: The dust collecting plate (4) is slidingly arranged in the dust collecting groove (11), one end of the dust collecting plate (4) is fixedly connected with traction springs arranged at an equiangular distribution, and the inner wall of the other end is fixedly connected with push rods (401) arranged in a symmetrical distribution.

6. The prefabricated low-voltage quick-access box according to claim 5, characterized in that: The surface of the dust collecting plate (4) is inclined to allow dust to be discharged from high to low.

7. The prefabricated low-voltage quick-access box according to claim 1, characterized in that: One end of the plug (3) is fixedly connected with a circular metal sheet (301), the two sides of one end of the circular metal sheet (301) are provided with contraction grooves, a pressing plate (901) is slidingly arranged in the contraction grooves, one end of the pressing plate (901) is fixedly connected with a contraction rod (9), the end of the contraction rod (9) is in contact with the push rod (401), and a second spring (10) is arranged between the pressing plate (901) and the inner wall of the contraction groove.

8. The prefabricated low-voltage quick-access box according to claim 7, characterized in that: The outer wall of the other end of the circular metal sheet (301) is sleeved with a rotating ring (7), and the rotating ring (7) is matched with the limiting groove (6).

9. The prefabricated low voltage fast access box according to claim 8, characterized in that: The grooves on both sides of the limiting groove (6) are arc surfaces for the rotating ring (7) to be taken out under stress.

10. The prefabricated low voltage fast access box according to claim 1, characterized in that: The initial sliding groove of the vibration groove (13) is a vertical sliding groove, and the middle part is a curved sliding groove.

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