Electricity taking device

Abstract

The utility model discloses an electricity taking device, and relates to the technical field of goods shelf display, the electricity taking device comprises an electricity taking assembly, the electricity taking assembly comprises an electricity taking base, an electricity taking plug, a positive electrode electricity taking contact piece and a negative electrode electricity taking contact piece, the positive electrode electricity taking contact piece and the negative electrode electricity taking contact piece are arranged on the electricity taking base, and the electricity taking plug is electrically connected with the electricity taking contact pieces; the power supply assembly comprises a power supply base, a locking piece connected with the power supply base, a power supply support connected with an inner hole of the power supply base in a matched mode, a power supply plug, an anode power supply contact piece and a cathode power supply contact piece, and the anode power supply contact piece and the cathode power supply contact piece are arranged on the power supply support, and the power supply plug is electrically connected with the power supply contact pieces; when in use, the power taking base is inserted into the power supply base, so that the power taking surface of the corresponding power taking contact piece is in contact with the elastic contact of the corresponding power supply contact piece to realize communication. The power taking assembly and the power supply assembly are reliably and stably connected, and the power taking assembly is convenient to disassemble and assemble.

Description

Technical Field

[0001] This application relates to the technical field of shelf display, and particularly to a power-taking device. Background Art

[0002] Shelves are widely used. For example, in shopping malls, logistics warehouses, factory warehouses, etc., shelves are needed to place items that are being sold or not immediately used. In order to display the bright effect and / or comprehensiveness of goods, a power-taking device is usually installed on the shelf to provide power for lighting devices and / or power-driven components. The traditional method is to use exposed wires, but the exposed wires have poor aesthetics. Therefore, concealed wires are arranged in the shelf, and then power is taken through the connection of plug-in joints. However, the wiring process is cumbersome, and when wiring is needed after the shelf is installed, the difficulty is great, and the power-taking position is relatively limited. Therefore, there are various power supply components that are detachably connected to the shelf, and the power-taking components use plug-in joints to realize the power-taking module. However, the existing power-taking modules mostly use surface-to-surface contact, which is prone to poor contact, and for the structure where the power-taking module and the power supply module are reliably connected, the power-taking module is not easy to be separated from the power supply module, making the disassembly and assembly of the power-taking module inconvenient. For the structure where the power-taking module and the power supply module are easily separated, accidental separation is likely to occur, resulting in poor contact and power-off. Summary of the Utility Model

[0003] In view of this, this application provides a power-taking device to solve the technical problems of easy poor contact and difficult disassembly and assembly of the power-taking module in the prior art.

[0004] To achieve the above object, the present utility model provides the following technical solutions:

[0005] A power-taking device, comprising:

[0006] A power-taking assembly, the power-taking assembly includes a power-taking base, a power-taking plug, and positive and negative power-taking contact pieces arranged on the power-taking base. The power-taking plug is electrically connected to the power-taking contact pieces;

[0007] A power supply assembly, the power supply assembly includes a power supply base, a locking member connected to the power supply base, a power supply bracket connected in cooperation with the inner hole of the power supply base, a power supply plug, and positive and negative power supply contact pieces arranged on the power supply bracket. The power supply plug is electrically connected to the power supply contact pieces;

[0008] During use, the power-taking base is inserted into the power supply base so that the power-taking surface of the corresponding power-taking contact piece contacts the elastic contact point of the corresponding power supply contact piece to achieve connection.

[0009] Further, the power-taking assembly further includes an insertion tube. The power-taking base is connected to the insertion tube, the insertion tube is in plug-in cooperation with the power supply base, and the power-taking connection wire passes through the insertion tube.

[0010] Further, the power-taking base has a power-taking tongue portion that can be inserted between two power supply contact pieces, and mounting grooves capable of cooperating with corresponding power-taking contact pieces are provided on both sides of the power-taking tongue portion.

[0011] Furthermore, locking holes are provided on the side wall of the insertion tube, and locking blocks cooperating with the locking holes are provided on the inner hole wall of the power supply base.

[0012] Furthermore, a relief inclined surface is provided on the inner hole wall of the power supply base on the opposite side of the locking block. When the insertion tube is manipulated to swing so that the locking block cooperates with the locking hole for locking, the power-taking base and the power supply bracket can be detachably and snap-fitted.

[0013] Furthermore, a convex portion is provided on the inner end surface of the power-taking tongue portion of the power-taking base, and a limiting protrusion capable of being snap-fitted with the convex portion is provided on the power supply bracket. Among them, the convex portion has a first guiding inclined surface and a second guiding inclined surface capable of guiding the convex portion to cross over the limiting protrusion.

[0014] Furthermore, a guiding portion capable of abutting against the insertion tube is connected to the side of the locking block, and a relief groove for inserting the guiding portion is provided at the side position of the locking hole.

[0015] Further, a wiring relief channel penetrating axially is provided on each side of the power supply bracket. A power supply piece mounting channel communicating with the wiring relief channel is provided inside the wiring relief channel. The power supply contact piece slides into the corresponding power supply piece mounting channel for installation, and the power supply connection wire connected to the power supply contact piece is located in the wiring relief channel.

[0016] Furthermore, the power supply contact piece includes a substrate portion, an elastic arm, and an antenna portion connected in sequence. A clamping arm is further connected to the substrate portion on one side of the elastic arm. The antenna portion and the clamping arm are respectively snap-fitted with corresponding first clamping grooves and corresponding second clamping grooves on the power supply bracket to limit the power supply contact piece.

[0017] Furthermore, an annular rib tightly fitting with the inner wall of the insertion tube is provided on the outer peripheral surface of the power supply base.

[0018] It can be seen from the above technical solutions that the advantages of the present utility model are as follows:

[0019] 1. In this application, connection is achieved by the power-taking surface of the power-taking contact piece contacting the elastic contact point of the corresponding power supply contact piece, making the contact reliable.

[0020] 2. In this application, through the cooperation of the power supply base and the locking member, this application can be adapted to support plates of different thicknesses for use, with a wider scope of application.

[0021] 3. In this application, the use of the insertion tube can hide the power-taking connection wire, with better aesthetics and facilitating the cooperation of this application with the display rack.

[0022] 4. The cooperation between the power supply base and the insertion tube in this application enables the power-taking assembly to be easily installed while ensuring reliable connection.

[0023] 5. The structures of the power-taking assembly and the power supply assembly in this application simplify the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0025] Figure 1 It is a schematic structural diagram of this application.

[0026] Figure 2 It is Figure 1 a partial enlarged view of part A in

[0027] Figure 3 It is a schematic structural diagram of the power-taking assembly of this application.

[0028] Figure 4 It is a schematic exploded view of the power-taking assembly of this application.

[0029] Figure 5 It is a schematic structural diagram of the power-taking base of the power-taking assembly of this application Figure 1 .

[0030] Figure 6 It is a schematic structural diagram of the power-taking base of the power-taking assembly of this application Figure 2 .

[0031] Figure 7 It is a schematic structural diagram of the power supply assembly of this application.

[0032] Figure 8 It is a schematic internal structural diagram of the power supply assembly of this application.

[0033] Figure 9 It is a schematic exploded view of the power supply assembly of this application.

[0034] Figure 10 It is a schematic structural diagram of the power supply base of the power supply assembly of this application.

[0035] Figure 11 It is a schematic structural diagram of the power supply bracket of the power supply assembly of this application Figure 1 .

[0036] Figure 12 It is a schematic structural diagram of the power supply bracket of the power supply assembly of this application Figure 2 .

[0037] Figure 13Structural schematic of the power supply bracket of the power supply assembly of the present application Figure 3 。

[0038] Figure 14 Structural schematic of the power supply contact piece of the power supply assembly of the present application Figure 1 。

[0039] Figure 15 Structural schematic of the power supply contact piece of the power supply assembly of the present application Figure 2 。

[0040] Explanation of reference numerals: 1 - Power taking assembly; 11 - Power taking base; 111 - Power taking base body; 112 - Power taking seat shoulder part; 113 - Power taking tongue part; 114 - Rib; 115 - Positioning block; 116 - Installation groove; 117 - Power taking piece installation channel; 118 - Limiting part; 119 - First guiding inclined surface; 1110 - Second guiding inclined surface; 12 - Power taking contact piece; 121 - Limiting table surface; 13 - Power taking connection wire; 14 - Power taking plug; 15 - Insertion tube; 151 - Locking hole; 152 - Avoidance groove; 153 - Limiting notch groove; 2 - Power supply assembly; 21 - Power supply base; 211 - External thread part; 212 - Power supply seat shoulder; 213 - Anti-rotation cutting surface; 214 - Pressing block; 215 - Locking block; 216 - Guiding part; 217 - Avoidance inclined surface; 218 - Insertion position indication mark; 22 - Locking part; 23 - Power supply bracket; 231 - Bracket insertion part; 232 - Power supply piece installation channel; 233 - First clamping groove; 234 - Wiring avoidance channel; 235 - Limiting protrusion; 24 - Power supply contact piece; 241 - Base piece part; 2411 - Wire clamping arm; 242 - Elastic arm; 243 - Antenna part; 244 - Clamping arm; 25 - Power supply connection wire; 26 - Power supply plug; 27 - Locking screw; 3 - Support plate. Detailed implementation manners

[0041] To make the purpose, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the implementation manners and the drawings. Herein, the illustrative implementation manners of the present application and their descriptions are used to explain the present application, but do not limit the present application.

[0042] Refer to Figures 1 to 14 As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 and Figure 9As shown in the figure, this embodiment provides a power-taking device, which includes a power-taking assembly 1 and a power supply assembly 2. The power-taking assembly 1 includes a power-taking base 11, a power-taking plug 14, and positive and negative power-taking contact pieces 12 arranged on the power-taking base 11. The power-taking plug 14 is electrically connected to the power-taking contact pieces 12. The power supply assembly 2 includes a power supply base 21, a locking member 22 connected to the power supply base 21, a power supply bracket 23 fitted and connected to the inner hole of the power supply base 21, a power supply plug 26, and positive and negative power supply contact pieces 24 arranged on the power supply bracket 23. The power supply plug 26 is electrically connected to the power supply contact pieces 24. During use, the power supply base 21 passes through the corresponding mounting holes in the support plate 3 and is fixedly connected to the support plate 3 through the locking member 22. The power-taking base 11 is inserted into the power supply base 21 so that the power-taking surfaces of the corresponding power-taking contact pieces 12 are in contact with the elastic contacts of the corresponding power supply contact pieces 24 to achieve connection, making the connection between the power-taking contact pieces 12 and the power supply contact pieces 24 reliable.

[0043] Specifically, the power-taking plug 14 is connected to the structure to be powered, and the power supply plug 26 is connected to the power supply. During use, the power-taking plug 14 can be directly or connected to the power-taking contact pieces 12 through a power-taking connection wire 13, and the power supply plug 26 can be directly or connected to the power supply contact pieces 24 through a power supply connection wire 25. The power-taking base 11 includes a power-taking base body 111 and a power-taking tongue portion 113 arranged at one end of the power-taking base body 111 and capable of being inserted between the two power supply contact pieces 24. At the junction of the power-taking base body 111 and the power-taking tongue portion 113, there is a power-taking base shoulder portion 112 with a diameter larger than the maximum radial dimension of the power-taking base body 111 and the maximum radial dimension of the power-taking tongue portion 113. The power-taking contact pieces 12 are attached to the corresponding sides of the power-taking tongue portion 113. By relying on the power-taking tongue portion 113, the power-taking contact pieces 12 are not easily deformed during the insertion process, making the connection between the power-taking contact pieces 12 and the power supply contact pieces 24 reliable. On the outer peripheral surface of the power supply base 21, there is an anti-rotation cutting surface 213 that prevents the power supply base 21 from rotating relative to the support plate 3. At one end of the power supply base 21, there is a power supply base shoulder 212 that can abut against the support plate 3. The installation of the power supply assembly 2 is realized by screwing the external thread portion 211 arranged on the outer peripheral surface of the power supply base 21 with the locking member 22, making the installation of the power supply assembly 2 convenient and able to meet the installation and use of support plates 3 with different thickness specifications, with a wider range of applications. The threaded connection form between the locking member 22 and the power supply base 21 can also be replaced by a clamping arm and empty slot fit. However, the clamping arm and empty slot fit structure only allows the installation of the power supply assembly 2 to meet the installation and use of various specifications of support plates 3 with different thicknesses. The connection between the power-taking base 11 and the power supply base 21 can be ensured by the contact friction or the engagement of the tooth and groove between them. Among them, on the end surface of the power supply base 21 close to the power-taking direction, there is an insertion position indicator mark 218, which is convenient for indicating the insertion direction of the power-taking assembly 1 and facilitating correct insertion connection at one time.

[0044] As Figure 5 and Figure 6 shown, the mounting form of the power-taking contact piece 12 in the present application is as follows: mounting grooves 116 are provided on both sides of the power-taking tongue portion 113. The mounting grooves 116 communicate with corresponding power-taking piece mounting channels 117 that axially penetrate through the power-taking base 11. After the power-taking contact piece 12 passes through the corresponding mounting channels 117, it is fitted with the mounting grooves 116 in an embedded manner. The power-taking contact piece 12 is connected to the power-taking base 11 as a whole by welding or bonding. A limiting portion 118 is provided on the end surface of the mounting channel 117 away from the mounting groove 116. The limiting table surface 121 of the power-taking contact piece 12 can abut against the limiting portion 118 to prevent the power-taking contact piece 12 from being excessively inserted into the mounting channel 117 during installation; the power-taking contact piece 12 can also be directly formed integrally with the power-taking base 11 by using the sleeve casting process during the manufacture of the power-taking base 11, that is, the power-taking contact piece 12 is cast together with the power-taking base 11, with reliable and stable connection, but the power-taking contact piece 12 cannot be replaced; the tail of the power-taking contact piece 12 away from the mounting groove 116 is connected to the power-taking plug 14 through a power-taking connection wire 13.

[0045] In an embodiment of the present application, the power-taking assembly 1 further includes an insertion tube 15. The power-taking base 11 is connected to the insertion tube 15. The insertion tube 15 is in plug-in fit with the power supply base 21. The power-taking connection wire 13 passes through the insertion tube 15.

[0046] Specifically, the power-taking base body 111 of the power-taking base 11 is inserted into the inner hole of the insertion tube 15. The mounting position of the power-taking base 11 is defined by abutting the power-taking base shoulder portion 112 against the insertion tube 15. A limiting notch groove 153 is provided at the end surface of the insertion tube 15. A positioning block 115 that is in plug-in fit with the limiting notch groove 153 is provided on the outer peripheral surface of the power-taking base body 111, so that there is no rotation between the power-taking base body 111 and the insertion tube 15 even when the power-taking base body 111 is cylindrical. The connection reliability between the insertion tube 15 and the power supply base 21 can be ensured by using the contact friction or the engagement of the engaging teeth and engaging grooves between them. The friction between the power-taking base body 111 and the insertion tube 15 is used to make the connection between the power-taking base 11 and the insertion tube 15 reliable. In order to further make the connection between the power-taking base 11 and the insertion tube 15 more reliable and stable, glue can be applied to the outer peripheral surface of the power-taking base body 111 to improve the fixing effect of the power-taking base 11. The use of the insertion tube 15 facilitates the connection of the present application with a lighted shoe rack with a display function, a display tool with a display screen or a light box.

[0047] Preferably, for the locking connection method between the insertion tube 15 and the power supply base 21 in the present application, a locking hole 151 is provided on the side wall of the insertion tube 15, and a locking block 215 that cooperates with the locking hole 151 is provided on the inner hole wall of the power supply base 21. The connection between the power-taking assembly 1 and the power supply assembly 2 is made reliable and not easily separated by using the connection between the locking hole 151 and the locking block 215.

[0048] To ensure reliable connection between the power-taking assembly 1 and the power-supplying assembly 2 while facilitating separation, the preferred solution is as follows: As Figure 1 , Figure 2 , Figure 8 and Figure 10 shown, on the inner hole wall of the power supply base 21, there is an avoidance inclined surface 217 on the side opposite to the locking block 215. When the manipulation cannula 15 swings to make the locking block 215 cooperate with the locking hole 151 for locking, the power-taking base 11 and the power supply bracket 23 can be detachably and snap-fitted.

[0049] Specifically, when the cannula 15 is inserted, it fits against the avoidance inclined surface 217. When the power-taking base 11 abuts against the power supply bracket 23, the locking block 215 will not interfere with the cannula 15. When locking is required, by tilting the cannula 15 to swing, the locking block 215 is made to cooperate with the locking hole 151, and the detachable snap-fitting connection between the power-taking base 11 and the power supply bracket 23 is used to prevent the cannula 15 from automatically approaching the avoidance inclined surface 217, making the cooperation between the locking block 215 and the locking hole 151 reliable. When it is necessary to remove the power-taking assembly 1, tilt the cannula 15 to overcome the clamping force between the power-taking base 11 and the power supply bracket 23, so that the cannula 15 fits against the avoidance inclined surface 217, and the locking block 215 is separated from the locking hole 151. Pulling out the cannula 15 can complete the removal of the power-taking assembly 1. By setting the avoidance inclined surface 217, the power-taking assembly 1 can be disassembled and assembled without damage, improving the durability of the power-taking assembly 1. Using the combination of the cooperation and locking between the locking block 215 and the locking hole 151 and the detachable snap-fitting connection between the power-taking base 11 and the power supply bracket 23, the power-taking assembly 1 and the power supply assembly 2 will not separate after connection, the connection is reliable, and the situation of poor contact is avoided.

[0050] To make the connection between the cannula 15 and the power-taking base 11 more reliable, on the outer peripheral surface of the power supply base 21, there is an annular rib 114 that fits tightly against the inner wall of the cannula 15. When installing the power-taking base 11, the annular rib 114 is prone to extrusion deformation to increase the contact force, improving the fixing reliability of the power-taking base 11. Moreover, when applying glue between multiple annular ribs 114, the glue will not spread everywhere after being squeezed, thus not affecting the electrical conductivity.

[0051] As Figure 2 and Figure 8 shown, on the inner end surface of the power-taking tongue 113 of the power-taking base 11 facing the power supply bracket 23, there is a clamping convex part, and on the power supply bracket 23, there is a limit protrusion 235 that can be snap-fitted with the clamping convex part. Among them, on the clamping convex part, there are a first guiding inclined surface 119 and a second guiding inclined surface 1110 that can guide the clamping convex part to cross over the limit protrusion 235.

[0052] Specifically, when the first guiding inclined surface 119 is in contact with the limiting protrusion 235, it is defined that the insertion tube 15 is in contact with the avoiding inclined surface 217, enabling the power-taking assembly 1 to be conveniently and smoothly removed or inserted. Moreover, the first guiding inclined surface 119 can conveniently guide the locking convex part to smoothly cross over the limiting protrusion 235 to complete the snap connection state. The second guiding inclined surface 1110 can conveniently guide the locking convex part to smoothly cross over the limiting protrusion 235 to release the snap connection state, facilitating the sliding out of the insertion tube 15 from the power supply base 21 to remove the power-taking assembly 1. The set positions of the locking convex part and the limiting protrusion 235 do not affect the relative positions between the power-taking contact piece 12 and the power supply contact piece 24, and thus do not affect the connection reliability between the power-taking contact piece 12 and the power supply contact piece 24. Among them, the locking convex part can also be arranged on the side surface of the power-taking tongue part 113, and connecting the locking convex part with a card slot or a card block protrusion arranged on the power supply bracket 23 can also achieve this function, but the structure is complex.

[0053] Preferably in this application, the inclination angle of the avoiding inclined surface 217 is not less than 2.5 degrees.

[0054] Preferably in the embodiments of this application, a guiding part 216 capable of abutting against the insertion tube 15 is connected to the side of the locking block 215, and an avoiding groove 152 for inserting the guiding part 216 is provided at the side position of the locking hole 151. Among them, the size of the locking block 215 is larger than the size of the avoiding groove 152 to ensure the locking stability.

[0055] Specifically, the guiding part 216 is located on the side of the locking block 215 away from the power supply bracket 23. During the insertion process of the insertion tube 15, the guiding part 216 is used to incline the insertion tube 15 towards the avoiding inclined surface 217, avoiding the frontal collision between the power-taking base 11 and the locking block 215, which may cause deformation or damage to the locking block 215. Moreover, the use of the guiding part 216 can enhance the strength of the locking block 215, and the locking block 215 is preferably columnar.

[0056] In the embodiments of this application, such as Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the power supply bracket 23 has a bracket insertion part 231 that fits into the inner hole of the power supply base 21. The shoulder surface at the rear end of the bracket insertion part 231 abuts against the power supply base 21 to axially define the installation position of the power supply bracket 23. The locking screw 27 passes through the power supply base 21 and is connected to the bracket insertion part 231 to fixedly connect the power supply base 21 and the power supply bracket 23, preventing the rear thrust acting on the power supply bracket 23 when the power-taking assembly 1 is inserted from causing the power supply bracket 23 to fall off and affecting the working reliability. The bracket insertion part 231 has a strip-shaped central hole that coincides with the axis. Both ends of the limit protrusion 235 are connected to the side wall of the central hole, making the limit protrusion 235 more easily deformed during the engagement with the clamping protrusion of the power-taking base 11, enabling the engagement process to be labor-saving. When the first guiding inclined surface 119 abuts against the limit protrusion 235 and the insertion tube 15 cannot slide closer, it indicates that the power-taking assembly 1 has slid into place. At this time, lift the power-taking assembly 1, and the power-taking surface of the power-taking contact piece 12 contacts the elastic contact point of the corresponding power supply contact piece 24 to achieve effective connection.

[0057] In the embodiment of the present application, the power supply contact piece 24 and the power supply bracket 23 are assembled and fixedly installed as one body, or the power supply contact piece 24 and the power supply bracket 23 are directly cast as one body during manufacturing.

[0058] In the embodiment of the present application, it is preferably that the power supply contact piece 24 and the power supply bracket 23 are assembled and connected as one body. On both sides of the outer peripheral surface of the power supply bracket 23, there is a wiring avoidance channel 234 that runs through axially. Inside the wiring avoidance channel 234, there is a power supply piece installation channel 232 that is connected to the wiring avoidance channel 234. The width of the power supply piece installation channel 232 is greater than the width of the wiring avoidance channel 234. The power supply contact piece 24 slides into the corresponding power supply piece installation channel 232 for installation. The power supply base 21 has a pressing block 214 that cooperates with the wiring avoidance channel 234. The pressing block 214 is inserted into the wiring avoidance channel 234. On the one hand, it can achieve circumferential limitation of the power supply bracket 23 to determine the installation direction, and cooperate with the axial limitation of the power supply bracket 23 to enable the locking screw 27 to be accurately and quickly installed. At the same time, the power supply connection line 25 connected to the power supply contact piece 24 is located in the wiring avoidance channel 234, which can hide the power supply connection line 25 and make the connection part beautiful. On the other hand, the pressing block 214 can press against the outer side surface of the power supply contact piece 24 to limit the power supply contact piece 24 in the power supply piece installation channel 232.

[0059] Specifically, as Figure 14 and Figure 15As shown, the power supply contact piece 24 includes a substrate portion 241, an elastic arm 242, and a bent antenna portion 243 that are connected in sequence. A clamping arm 244 that is located on one side of the elastic arm 242 and can be bent is also connected to the substrate portion 241. One end of the power supply piece installation channel 232 away from the power supply base 21 is in a closed shape. During installation, the clamping arm 244 is bent, and the power supply contact piece 24 slides into the power supply piece installation channel 232 from the open end of the other end until the antenna portion 243 and the bent clamping arm 244 are respectively engaged with the corresponding first card slot 233 and the corresponding second card slot located on the power supply bracket 23 to limit the power supply contact piece 24. The antenna portion 243 is used to contact the power-taking contact piece 12. The engagement of the clamping arm 244 with the second card slot makes the installation position of the power supply contact piece 24 stable and reliable, preventing the power supply contact piece 24 from axially moving. Among them, the second card slot is located on the inner wall of the power supply piece installation channel 232, and the antenna portion 243 can also be replaced by a contact rib installed on the side surface of the elastic arm 242; both sides of one end of the substrate portion 241 away from the antenna portion 243 are in a comb shape to form a plurality of wire clamping arms 2411. The power supply connection wire 25 is held and fixed by bending the multiple wire clamping arms 2411 on both sides, enabling the connection between the power supply connection wire 25 and the power supply contact piece 24 to adopt a solder-free connection. When installing the power supply contact piece 24, first connect the power supply contact piece 24 to the power supply connection wire 25, and then place the power supply contact piece 24 into the power supply piece installation channel 232 from the open end of the power supply piece installation channel 232. At this time, the power supply connection wire 25 is located in the wiring avoidance channel 234. When the antenna portion 243 extends into the first card slot 233 and the bent clamping arm 244 enters the second card slot, the installation of the power supply piece installation channel 232 is completed. Finally, the installation of the power supply bracket 23 and the power supply base 21 causes the pressing block 214 to act on the outer side surface of the elastic arm 242 to limit the power supply contact piece 24 in the power supply piece installation channel 232 to prevent the clamping arm 244 from disengaging from the second card slot. When it is necessary to replace the power supply contact piece 24 or the power supply bracket 23, only need to separate the power supply bracket 23 from the power supply base 21, and the installation is simple.

[0060] During use, when power needs to be obtained, the insertion tube 15 equipped with the power-taking base 11 is abutted against the avoidance inclined surface 217 and inserted into the power supply base 21. When the power-taking base 11 abuts against the power supply bracket 23, it indicates that the power-taking assembly 1 has been inserted in place. Then, by pressing and tilting the insertion tube 15 to swing, the lock block 215 is engaged with the locking hole 151. When a "click" sound is heard, the limit protrusion 235 is engaged with the convex part of the power-taking base 11. At this time, the insertion tube 15 becomes coaxial with the power supply base 21, and the power-taking contact piece 12 is connected to the corresponding power supply contact piece 24. The separable snap connection between the power-taking base 11 and the power supply bracket 23 is used to prevent the insertion tube 15 from automatically approaching the avoidance inclined surface 217, making the cooperation between the lock block 215 and the locking hole 151 reliable. When power needs to be cut off, the extended part of the insertion tube 15 is tilted to overcome the clamping force between the power-taking base 11 and the power supply bracket 23, so that the insertion tube 15 abuts against the avoidance inclined surface 217. When a "click" sound is heard, the limit protrusion 235 is unlocked from the convex part of the power-taking base 11, the lock block 215 is separated from the locking hole 151, and the insertion tube 15 is pulled out to complete the removal of the power-taking assembly 1.

[0061] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power extraction device, characterized in that: include: A power collection assembly (1), the power collection assembly (1) comprising a power collection base (11), a power collection plug (14), and positive and negative power collection contacts (12) arranged on the power collection base (11), the power collection plug (14) being electrically connected to the power collection contacts (12); A power supply assembly (2), the power supply assembly (2) comprising a power supply base (21), a locking piece (22) connected to the power supply base (21), a power supply bracket (23) connected to the inner hole of the power supply base (21), a power supply plug (26), and positive and negative power supply contacts (24) arranged on the power supply bracket (23), the power supply plug (26) being electrically connected to the power supply contacts (24); When in use, the power taking base (11) is inserted into the power supply base (21) so that the power taking surface of the corresponding power taking contact piece (12) contacts the elastic contact point of the corresponding power supply contact piece (24) to achieve communication.

2. The power extraction device according to claim 1, characterized in that: The power extraction assembly (1) further comprises a plug (15), the power extraction base (11) is connected to the plug (15), the plug (15) is plugged into and matched with the power supply base (21), and the power extraction connection line (13) passes through the plug (15).

3. The power extraction device according to claim 1, characterized in that: The power extraction base (11) has a power extraction tongue (113) that can be inserted between two power supply contacts (24), and both sides of the power extraction tongue (113) have mounting grooves (116) that can cooperate with corresponding power extraction contacts (12).

4. The power extraction device according to claim 2, characterized in that: A locking hole (151) is provided on the side wall of the insertion tube (15), and a locking block (215) matching the locking hole (151) is provided on the inner hole wall of the power supply base (21).

5. The power extraction device according to claim 4, characterized in that: The inner hole wall of the power supply base (21) is provided with an avoidance slope (217) located on the opposite side of the locking block (215), and the insertion tube (15) is manipulated to swing so that the locking block (215) and the locking hole (151) are locked in cooperation, and at the same time, the power supply base (11) and the power supply bracket (23) are detachably engaged and connected.

6. The power extraction device according to claim 5, characterized in that: The inner end surface of the power taking tongue (113) of the power taking base (11) is provided with a locking protrusion, and the power supply bracket (23) is provided with a limiting protrusion (235) capable of being locked and connected with the locking protrusion, wherein the locking protrusion is provided with a first guiding inclined surface (119) and a second guiding inclined surface (1110) capable of guiding the locking protrusion to pass over the limiting protrusion (235).

7. The power extraction device according to claim 4, characterized in that: A guide portion (216) capable of abutting against the insertion tube (15) is connected to the side of the locking block (215), and an avoidance groove (152) for inserting the guide portion (216) is provided at the side of the locking hole (151).

8. The power extraction device according to claim 1, characterized in that: A wiring avoidance channel (234) is provided on each side of the power supply bracket (23) and extends through the axial direction. A power supply sheet installation channel (232) connected to the wiring avoidance channel (234) is provided on the inner side of the wiring avoidance channel (234). The power supply contact sheet (24) slides into the corresponding power supply sheet installation channel (232) for installation. The power supply connection line (25) connected to the power supply contact sheet (24) is located in the wiring avoidance channel (234).

9. The power extraction device according to claim 8, characterized in that: The power supply contact piece (24) comprises a base piece portion (241), an elastic arm (242) and an antenna portion (243) which are connected in sequence; the base piece portion (241) is also connected to a clamping arm (244) located on one side of the elastic arm (242); the antenna portion (243) and the clamping arm (244) are respectively clamped and connected with a corresponding first clamping slot (233) and a corresponding second clamping slot located on the power supply bracket (23) to limit the power supply contact piece (24).

10. The power extraction device according to claim 2, characterized in that: The outer peripheral surface of the power supply base (21) is provided with an annular rib (114) which is tightly fitted with the inner wall of the insertion tube (15).

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