Plugging force detection device for plugging port of charging pile

Abstract

The utility model discloses a plugging force detection device of a charging pile plugging port, comprising a detection plate and a substrate which are vertically parallel, the top surface of the detection plate is provided with a detection groove along the axis, the detection groove is internally provided with a first centering chuck, and the first centering chuck clamps the charging pile plugging port; an electric push rod is further arranged on the top surface of the detection plate, the lifting direction of the electric push rod is perpendicular to the detection plate, a connecting shaft is fixed to the transmission tail end of the electric push rod, a second centering chuck is arranged at the tail end of the connecting shaft and located over the first centering chuck, and the clamping face of the second centering chuck is in mirror symmetry with the clamping face of the first centering chuck; the top surface of the detection plate is also provided with a tension sensor, an input interface of the tension sensor fixes the connecting shaft through a pull rod, the pull rod acts on the tension sensor, and signals of the tension sensor are output to the display screen; according to the utility model, the plugging performance of the plugging port of the charging pile can be visually and digitally displayed through the display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of insertion and extraction force detection, and in particular to an insertion and extraction force detection device for a charging pile plug-in port. Background Art

[0002] New energy electric vehicles need to be plugged into charging piles to obtain energy. Such charging piles are generally placed outdoors or in underground parking lots. Existing electronic devices of this type are mostly manufactured in a modular manner to improve generation efficiency, so they also have independent charging modules, i.e., sockets or plugs for outputting electrical energy.

[0003] Especially for electronic products such as sockets, it is necessary to maintain a high plugging and unplugging force to prevent loosening, and the intuitive display of plugging and unplugging force performance is particularly important. Based on this, the utility model provides a plugging and unplugging force detection device for a charging pile plug port that intuitively displays the plugging and unplugging force performance. Summary of the invention

[0004] The purpose of the utility model is to solve the problem in the prior art that the plugging and pulling force performance needs to be displayed intuitively.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plugging and unplugging force detection device for a charging pile plug port, comprising a detection plate and a base plate which are parallel to each other, wherein a detection groove along an axis is provided on the top surface of the detection plate, and a first centering chuck is provided in the detection groove, and the first centering chuck clamps the charging pile plug port;

[0007] The top surface of the detection plate is also provided with an electric push rod, the lifting direction of the electric push rod is perpendicular to the detection plate, the transmission end of the electric push rod is fixed with a connecting shaft, the end of the connecting shaft is provided with a second centering chuck, the second centering chuck is located directly above the first centering chuck, and its clamping surface is mirror-symmetrical with the clamping surface of the first centering chuck;

[0008] A tension sensor is also provided on the top surface of the detection plate. The input interface of the tension sensor fixes the connecting shaft through a pull rod. The pull rod acts on the tension sensor, and the tension sensor signal is output on the display screen.

[0009] Preferably, a number of control boards are evenly spaced and level with the detection board, and a number of mounting boards are evenly spaced and level with the substrate, and the control boards and mounting boards correspond to each other up and down; the middle of the detection board and the substrate or the control board and the mounting board is the mounting area.

[0010] Preferably, a plurality of the first centering chucks are arranged at intervals in the detection slot, and a plurality of the electric push rods and the second centering chucks are arranged corresponding to the first centering chucks.

[0011] Preferably, the input interface of the tension sensor fixes the connecting shaft via a pull rod and a clamp at the top of the pull rod.

[0012] Preferably, the clamp structure is a clamp structure fixed by bolts.

[0013] Preferably, the display screen is mounted on an extension line of the electric push rod and the first centering chuck on the top surface of the detection plate.

[0014] Preferably, a turntable is rotatably provided on the top surface of the control plate, and a driving shaft is vertically fixedly connected to the axis center of the bottom surface of the turntable, and the driving shaft bearing passes through the control plate, and its end extends to the mounting plate and is connected to its bearing; a driving wheel is fixedly provided on the circumferential surface of the driving shaft located in the mounting area; a driven shaft is vertically fixedly connected to the axis center of the bottom surface of the first centering chuck, and the driven shaft bearing passes through the detection groove, and its end extends to the base plate and is connected to its bearing; a driven wheel is fixedly provided on the circumferential surface of the driven shaft located in the mounting area; and the driving wheel and the driven wheel are transmission-connected.

[0015] Preferably, the driving wheel and the driven wheel are both pulleys, and the diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0016] Preferably, the turntable has limit slots running through the upper and lower surfaces, and limit bolts are inserted into the limit slots; a magnetic ring corresponding to the limit slots is provided on the surface of the control panel below the turntable, and the limit bolt is a magnetic rod with magnetic repulsion at both ends.

[0017] Compared with the prior art, the utility model provides a plugging and unplugging force detection device for a charging pile plug port, which has the following beneficial effects:

[0018] In the utility model, when the connecting shaft is driven by the electric push rod to rise and fall in the height direction, the connecting shaft is subjected to force and transmits it to the pull rod, the pull rod acts on the tension sensor, and the force received is digitally displayed on the display screen. When the user controls the electric push rod, he can directly read the digital display data of the plug-in and pull-out force of the plug-in port in the current area.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of an embodiment of the clamp of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection of the driving wheel and the driven wheel according to an embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the position of an embodiment of the display screen of the utility model;

[0025] Figure 6 This is a schematic diagram of signal input and output of the tension sensor of the utility model.

[0026] In the figure: 1. base plate; 2. detection plate; 3. control board; 4. detection slot; 5. electric push rod; 6. connecting shaft; 7. tension sensor; 8. mounting plate; 9. display screen; 11. driven wheel; 12. driven shaft; 31. turntable; 32. magnetic ring; 33. limit bolt; 34. limit slot; 35. driving wheel; 36. driving shaft; 41. first centering chuck; 61. second centering chuck; 71. pull rod; 72. clamp. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Reference Figure 1-Figure 6 A plugging and unplugging force detection device for a charging pile plug port includes a detection plate 2 and a base plate 1 which are parallel to each other. A plurality of control plates 3 are evenly spaced on the side of the detection plate 2 and are horizontal to the detection plate 2. A plurality of mounting plates 8 are evenly spaced on the side of the base plate 1 and are horizontal to the detection plate 2. The control plates 3 and the mounting plates 8 correspond to each other up and down. The middle of the detection plate 2 and the base plate 1 or the control plate 3 and the mounting plate 8 is an installation area.

[0030] In this embodiment, the substrate 1 is fixed by a support column, and the support column can adopt a telescopic structure, such as a cylinder or a hydraulic cylinder; the detection board 2 is used to place the charging pile plug port to be detected, and the charging pile plug port can be a strip socket structure or a single independent socket. The detection board 2 is also provided with a detection component for detecting the plugging and unplugging force of the charging pile plug port.

[0031] Specifically, the top surface of the detection plate 2 is provided with a detection groove 4 along the axis, and a first centering chuck 41 is provided in the detection groove 4. The first centering chuck 41 is used to clamp the charging pile plug port, and the charging pile plug port is a socket or a plug. The top surface of the detection plate 2 is also provided with an electric push rod 5, and the lifting direction of the electric push rod 5 is perpendicular to the top surface of the detection plate 2. The transmission end of the electric push rod 5 is fixed with a connecting shaft 6, and the end of the connecting shaft 6 is provided with a second centering chuck 61. The second centering chuck 61 is located directly above the first centering chuck 41, and its clamping surface is mirror-symmetrical with the clamping surface of the first centering chuck 41. The second centering chuck 61 is used to clamp the charging pile plug port, and the charging pile plug port is a socket or a plug. When the first centering chuck 41 clamps the socket, the second centering chuck 61 clamps the plug. When the electric push rod 5 is started, the connecting shaft 6 at the transmission end thereof drives the second centering chuck 61 to move up and down, thereby driving the socket (plug) to be plugged in and out of the corresponding plug (socket).

[0032] In this embodiment, the first centering chuck 41 and the second centering chuck 61 can adopt a three-jaw chuck or a four-jaw chuck structure, or other centering structures that can center and fix the charging pile plug port can also be adopted. The centering chuck structure is a prior art and will not be repeated in this embodiment.

[0033] For further reference, Figure 1 The first centering chuck 41 is arranged in plurality at intervals in the detection slot 4, and the electric push rod 5 and the second centering chuck 61 are arranged in plurality corresponding to the first centering chuck 41, so that a plurality of plug-in ports of different models and sizes can be clamped at one time by the chuck, thereby improving the practicality of the device.

[0034] In order to immediately and intuitively reflect the plug-in and pull-out performance of the plug-in port, in this embodiment, the top surface of the detection board 2 is also provided with a tension sensor 7. Figure 1 The tension sensor 7 can adopt a common S-shaped tension sensor 7, and the input interface of the tension sensor 7 fixes the connecting shaft 6 through a pull rod 71 and a clamp 72 at the top of the pull rod 71.

[0035] The S-type sensor is a common type of sensor. Because of its "S" shape, it is called an S-type sensor. It is mainly used to measure tension or pressure. It is also commonly called an S-type tension and compression dual-purpose sensor. It can be used alone or in groups to output multiple sensors for simultaneous use. The S-type weighing sensor is one of the common types of weighing sensors, and mainly uses electronic strain gauge technology. The resistance strain sensor consists of an elastomer, a resistance strain gauge, a compensation resistor and a housing, and can be designed into a variety of structural forms according to specific measurement requirements. The elastomer is deformed by the measured force, and the resistance strain gauge attached to it is deformed together. The resistance strain gauge then converts the deformation into a change in resistance value, thereby measuring the force value.

[0036] In this embodiment, the structure of the clamp 72 can be Figure 3 The bolt-fixed clamp 72 structure shown is used by fitting the arc surface of the upper semicircular clamp to the top surface of the circumference of the pull rod 71, and the lower semicircular clamp to the bottom surface of the circumference. The upper and lower semicircular clamps are locked by bolts and nuts to achieve connection to the pull rod 71.

[0037] When the connecting shaft 6 is driven by the electric push rod 5 to rise and fall in the height direction, the connecting shaft 6 is subjected to force and transmits it to the pull rod 71. The pull rod 71 acts on the tension sensor 7 and digitally displays the force it receives through the display screen 9. The display screen 9 can be installed on the surface of the detection panel, preferably, it is installed on the extension line of the electric push rod 5 and the first centering chuck 41 on the top surface of the detection board 2, which can be located just in the corresponding area of ​​each control board 3, and the control board 3 can be provided with a control button or knob for controlling the electric push rod 5, so that the user can directly read the digital display data of the plug-in and pull-out force of the plug port in the current area when controlling the electric push rod 5.

[0038] In this embodiment, the clamping surface of the second centering chuck 61 is inverted. Generally, after the socket or plug is installed, the installation angle is not adjusted. Based on this, by adjusting the angle of the first centering chuck 41 with the clamping surface facing upward, it is possible to visually observe whether the two chucks are aligned. Specifically, a turntable 31 is rotatably provided on the top surface of the control board 3, and the driving shaft 36 is vertically fixed at the axis center of the bottom surface of the turntable 31. The driving shaft 36 bearing passes through the control board 3, and its end extends to the mounting plate 8 and is connected to its bearing; a driving wheel 35 is fixedly sleeved on the circumferential surface of the driving shaft 36 located in the mounting area; the driven shaft 12 is vertically fixedly sleeved at the axis center of the bottom surface of the first centering chuck 41, and the driven shaft 12 bearing passes through the detection slot 4, and its end extends to the base plate 1 and is connected to its bearing; a driven wheel 11 is fixedly sleeved on the circumferential surface of the driven shaft 12 located in the mounting area. The driving wheel 35 and the driven wheel 11 are transmission-connected.

[0039] like Figure 4As shown, specifically, the driving wheel 35 and the driven wheel 11 are both pulleys, or both are sprockets. Preferably, the diameter of the driving wheel 35 is smaller than the diameter of the driven wheel 11, forming a reduction wheel structure. When the turntable 31 rotates, it drives the driving shaft 36, the driving shaft 36 drives the driving wheel 35, the driving wheel 35 drives the driven wheel 11 through a belt or chain, the driven wheel 11 drives the driven shaft 12, and the driven shaft 12 drives the first centering chuck 41 to rotate, so as to adjust the angle of the plug-in port, thereby facilitating alignment with the socket or plug above. The transmission design between the driving wheel 35 and the driven wheel 11 is a loss-reducing wheel structure, which can improve the rotation accuracy of the first centering chuck 41. For example, when the turntable 31 rotates one circle, the rotation angle of the first centering chuck 41 is 45 degrees.

[0040] Furthermore, after the angle of the first centering chuck 41 is adjusted, the first centering chuck 41 can be fixed by fixing the turntable 31. Specifically, the turntable 31 is penetrated by the limit groove 34 on the upper and lower sides, and the limit bolt 33 is inserted in the limit groove 34; the surface of the control board 3 below the turntable 31 is provided with a magnetic ring 32 corresponding to the limit groove 34, and the magnetic ring 32 is buried in the control board 3 or covers the surface of the control board 3. The limit bolt 33 is a magnetic rod with two ends that magnetically repel each other. When the turntable 31 needs to be fixed, the magnetic rod is adjusted, and the end of the magnetic rod that attracts the magnetic ring 32 is inserted into the limit groove 34 to attract the magnetic ring 32. The magnetic force of the magnetic ring 32 and the magnetic rod adopts different types of magnets based on actual needs. Specifically, the two side surfaces of the limit groove 34 fit the outer two side surfaces of the limit bolt 33, so that the turntable 31 does not rotate after limiting.

[0041] Workflow: Place the plug-in accessories (socket and plug) to be tested on the first centering chuck 41 and the second centering chuck 61 respectively to center and fix them; start the electric push rod 5, observe the first centering chuck 41, and adjust the angle of the first centering chuck 41 by rotating the turntable 31; then start the electric push rod 5, so that the second centering chuck 61 moves toward the first centering chuck 41, so that the plug (socket) is inserted into the socket (plug). In the process of continuous approach, the angle of the first centering chuck 41 can be continuously corrected based on the reduction wheel structure to align them. Then connect the pull rod 71 corresponding to the height to the tension sensor 7, and clamp the clamp 72 at the top of the pull rod 71 with the connecting shaft 6. Then reversely raise the connecting shaft 6, and pull out the plug-in accessories to be tested. During the pulling out process, the connecting shaft 6 moves upward, and the force on the pull rod 71 is detected by the tension sensor 7. The tension sensor 7 transmits the detected force to the display screen 9 after decoding and encoding.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plugging and unplugging force detection device for a charging pile plug port, comprising a detection plate (2) and a base plate (1) which are parallel to each other, wherein a detection groove along an axis is provided on the top surface of the detection plate (2), and a first centering chuck (41) is provided in the detection groove, and the first centering chuck (41) clamps the charging pile plug port; characterized in that: The top surface of the detection plate (2) is also provided with an electric push rod (5), the lifting direction of the electric push rod (5) is perpendicular to the detection plate (2), the transmission end of the electric push rod (5) is fixed with a connecting shaft (6), the end of the connecting shaft (6) is provided with a second centering chuck (61), the second centering chuck (61) is located directly above the first centering chuck (41), and its clamping surface is mirror-symmetrical with the clamping surface of the first centering chuck (41); The top surface of the detection plate (2) is also provided with a tension sensor (7), the input interface of the tension sensor (7) fixes the connecting shaft (6) via a pull rod (71), the pull rod (71) acts on the tension sensor (7), and the signal of the tension sensor (7) is output on the display screen (9).

2. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 1, characterized in that: A plurality of control boards (3) are arranged at equal intervals on the side of the detection board (2) and are in parallel with the detection board (2); a plurality of mounting boards (8) are arranged at equal intervals on the side of the base board (1) and are in parallel with the base board (1); the control boards (3) and the mounting boards (8) correspond to each other up and down; and a mounting area is provided in the middle of the detection board (2) and the base board (1) or the control board (3) and the mounting board (8).

3. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 1, characterized in that: A plurality of the first centering chucks (41) are arranged at intervals in the detection slot, and a plurality of the electric push rods (5) and the second centering chucks (61) are arranged corresponding to the first centering chucks (41).

4. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 1, characterized in that: The input interface of the tension sensor (7) fixes the connecting shaft (6) via a pull rod (71) and a clamp (72) at the top end of the pull rod (71).

5. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 1, characterized in that: The display screen (9) is mounted on the extension line of the electric push rod (5) and the first centering chuck (41) on the top surface of the detection plate (2).

6. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 2, characterized in that: A rotating disc (31) is rotatably provided on the top surface of the control plate (3), and a driving shaft (36) is vertically fixedly connected to the axis center of the bottom surface of the rotating disc (31). The bearing of the driving shaft (36) passes through the control plate (3), and its end extends to the mounting plate (8) and is connected to its bearing; a driving wheel (35) is fixedly sleeved on the circumferential surface of the driving shaft (36) located in the mounting area; a driven shaft (12) is vertically fixedly connected to the axis center of the bottom surface of the first centering chuck (41), and the bearing of the driven shaft (12) passes through the detection slot, and its end extends to the base plate (1) and is connected to its bearing; a driven wheel (11) is fixedly sleeved on the circumferential surface of the driven shaft (12) located in the mounting area; the driving wheel (35) and the driven wheel (11) are transmission-connected.

7. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 6, characterized in that: The driving wheel (35) and the driven wheel (11) are both belt pulleys, and the diameter of the driving wheel (35) is smaller than the diameter of the driven wheel (11).

8. The device for detecting the insertion and extraction force of a charging pile plug port according to claim 6, characterized in that: The upper and lower surfaces of the rotating disk (31) are penetrated by a limiting groove (34), and a limiting bolt (33) is inserted into the limiting groove (34); a magnetic ring (32) corresponding to the limiting groove (34) is provided on the surface of the control panel (3) below the rotating disk (31), and the limiting bolt (33) is a magnetic rod with two ends having magnetic repulsion.

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