Electric moped environment-friendly battery detection equipment

Abstract

The invention relates to the technical field of battery detection, and discloses electric moped environment-friendly battery detection equipment which comprises a detection box, and a gas collection cylinder and a placement disc are fixedly arranged in the detection box; the top of the piston disc is fixedly connected with a second sliding pipe, and the second sliding pipe is in sliding connection with the gas collection cylinder and the detection box; a mounting block is fixedly arranged at the bottom of the piston disc; an impact block is arranged at the bottom of the mounting block; a high-pressure air pump is fixedly arranged in the detection box, an air outlet of the high-pressure air pump is fixedly communicated with a connecting pipe, and the connecting pipe is fixedly communicated with the air collection cylinder; a clamping rod is slidably installed on the gas collecting cylinder, a second clamping groove is formed in the piston disc, and the clamping rod is clamped and matched with the second clamping groove in a limiting mode; an output rod of the air cylinder is in transmission fit with the clamping rod through a transmission piece. According to the invention, the air pressure in the air collection cylinder is used for simulating the change of weight, and the air pressure can be increased or decreased in a stepless manner, so that the whole detection data is changed in a continuous line manner instead of a broken line manner.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to an environmentally friendly battery detection device for an electric power-assisted vehicle. Background Art

[0002] Electric power-assisted bicycles, also known as electric power-assisted bicycles or e-bikes, are a type of transportation that combines human pedaling with electric power assistance. They work by sensing the force of the rider's pedaling through a torque sensor and providing corresponding power support based on this force. To ensure that users can ride electric power-assisted bicycles safely, it is necessary to test the batteries used in electric power-assisted bicycles, such as environmentally friendly batteries. The testing content includes puncture, impact resistance, and drop tests on the battery in simulated extreme environments to evaluate the safety performance of the battery.

[0003] The disclosure is of a lithium battery anti-impact detection device as described in the publication number CN116296211A, comprising a box body, a plurality of symmetrically arranged legs being fixedly connected to the bottom of the box body, a transparent protective door being hingedly connected to the side wall of the box body, and a placement plate being rotatably connected to the bottom of the box body through a rotating mechanism, a movable plate being connected to the interior of the box body through a guide mechanism, and a sharp needle being fixedly connected to the lower side wall of the movable plate, the movement of the movable plate of the battery detection technology is driven by a first driving mechanism, and a distance sensor is fixedly inserted at the top of the box body, the lower side wall of the movable plate of the battery detection technology is connected to an impact plate through a guide assembly, and the impact plate comprises a center plate, a middle frame and an outer frame, a through hole is provided on the upper side wall of the center plate of the battery detection technology, and the impact plate is moved by a lifting mechanism, and a counterweight mechanism for counterweighting the movable plate is provided inside the box body.

[0004] Based on the above technical features, the problem that arises is: in the prior art, during the impact resistance test, the weight of the moving plate is increased by a counterweight mechanism to simulate the impact of different weights. Since the technical feature of the counterweight mechanism used to increase the weight of the moving plate is a plurality of counterweight blocks of the same mass, the increase in weight is an integer multiple of a counterweight block, and the increase process is not "stepless", resulting in lower detection accuracy.

[0005] Therefore, it is necessary to solve the above problems through an environmentally friendly battery testing device for electric power-assisted bicycles. Summary of the invention

[0006] The purpose of the present invention is to provide an environmentally friendly battery testing device for an electric power-assisted vehicle to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly battery detection device for an electric power-assisted vehicle, comprising a detection box, in which a gas collecting cylinder and a placement plate for placing batteries are fixedly arranged, the gas collecting cylinder is located above the placement plate and has an opening at the bottom; the opening at the bottom of the gas collecting cylinder is sealed and slidably matched with a piston disc, the top of the piston disc is fixedly connected to a second sliding tube, and the second sliding tube is slidably connected to the gas collecting cylinder and the detection box; a mounting block is fixedly arranged at the bottom of the piston disc, an impact block is arranged at the bottom of the mounting block, and a puncture needle is installed in the impact block; a high-pressure air pump is fixedly arranged in the detection box, and the air outlet of the high-pressure air pump is fixedly connected to a connecting pipe, and the connecting pipe is fixedly connected to the gas collecting cylinder; a clamping rod is slidably installed on the gas collecting cylinder, a second clamping groove is opened on the piston disc, and the clamping rod and the second clamping groove are clamped and limited in position; a cylinder is fixedly installed on the gas collecting cylinder, and the output rod of the cylinder is transmission-matched with the clamping rod through a transmission member.

[0008] Preferably, the transmission member includes a push block and a second spring telescopic rod; a slide plate is fixedly arranged between the push block and the output rod of the cylinder, and the push block is abutted and transmission-coordinated with the clamping rod; the second spring telescopic rod is fixedly installed on the air collecting cylinder, and the telescopic end of the second spring telescopic rod is fixedly connected to the clamping rod.

[0009] Preferably, a vertically mounted piston cylinder is fixedly arranged in the detection box, and a first piston is sealingly and slidingly fitted in the piston cylinder; the top of the first piston is fixedly connected to a first sliding tube, and the first sliding tube is slidingly connected to the piston cylinder and the detection box; two fixed pulleys are arranged on the top of the detection box, and a pull rope is fixedly arranged between the first sliding tube and the second sliding tube; the pull rope is wound around the two fixed pulleys.

[0010] Preferably, the piston cylinder is fixedly connected with the connecting pipe and an electromagnetic valve is fixedly installed at the connection point; a second through hole is opened at the top of the piston cylinder, and a first opening is opened at the bottom; a rotating plate is rotatably installed in the piston cylinder, and a first through hole is opened on the rotating plate, and the first through hole is connected with the second through hole when compared; an outer gear ring is rotatably sleeved on the piston cylinder, and the outer gear ring is transmission-connected with the rotating plate; a rack is fixedly set on the slide plate, and the rack is meshingly matched with the outer gear ring.

[0011] Preferably, a fixing plate is fixedly arranged on the top of the piston disc; a first baffle is slidably installed in the gas collecting cylinder, and the first baffle slides to close the connection between the connecting pipe and the gas collecting cylinder; a first connecting rod is fixedly connected to the bottom of the first baffle, and the fixing plate and the first connecting rod are abutted and transmission matched; a first spring telescopic rod is fixedly installed in the gas collecting cylinder, and the telescopic end of the first spring telescopic rod is fixedly connected to the first connecting rod.

[0012] Preferably, a first air cavity and a second air cavity are provided in the mounting block; a second piston is slidably installed in the first air cavity, and a third piston is slidably installed in the second air cavity; a piston rod is fixedly provided between the second piston and the third piston, and the piston rod is sealingly and slidingly matched with the mounting block; a suction cup is fixedly provided at the bottom of the mounting block, and the suction cup is connected to the second air cavity; a first air channel and a second air channel are provided in the mounting block, the first air channel is connected to the rod cavity of the first air cavity, and the second air channel is connected to the rod cavity of the second air cavity.

[0013] Preferably, a first fixed tube and a second fixed tube are fixedly arranged on the top of the detection box, and a connecting tube is fixedly connected between the first fixed tube and the second fixed tube; the first sliding tube is coaxially slidably inserted into the first fixed tube, and the second sliding tube is coaxially slidably inserted into the second fixed tube; a second opening is provided at the bottom of the first sliding tube, and the second sliding tube is connected to the first airway.

[0014] Preferably, a sliding cavity and a third air channel are provided in the mounting block, the sliding cavity is connected to the rodless cavity of the second air cavity, one port of the third air channel is connected to the sliding cavity, and the other port is connected to the rodless cavity of the second air cavity; a second baffle is slidably installed in the sliding cavity, and the second baffle slides to seal the second air cavity and the port connecting the third air channel and the sliding cavity.

[0015] Preferably, the sliding cavity is connected to the outside of the mounting block, a special-shaped block is slidably installed on the mounting block, and a sliding rod is fixedly arranged between the special-shaped block and the second baffle plate; a second spring is arranged in the sliding cavity, one end of the second spring is fixedly connected to the second baffle plate, and the other end is fixedly connected to the mounting block; a vertical transmission plate is fixedly arranged on the placement disk, a transmission inclined surface is provided on the special-shaped block, and the transmission plate abuts against the transmission inclined surface for transmission cooperation.

[0016] Preferably, a first slot is provided on the top of the special-shaped block; an insertion rod is slidably installed on the mounting block, and the special-shaped block is in transmission engagement with the insertion rod through an inclined surface, and the insertion rod is engaged with the first slot in a limited manner; an electromagnet is fixedly provided on the gas collecting cylinder, and the insertion rod is magnetically engaged with the electromagnet; a protrusion is fixedly provided on the mounting block, and a third spring is fixedly provided between the protrusion and the insertion rod.

[0017] Technical effects and advantages of the present invention: First, the high-pressure air pump of the present invention can inject high-pressure gas into the gas collecting cylinder, and the air pressure in the gas collecting cylinder increases. When the clamping rod is disengaged from the second clamping groove, the piston disc is affected by the pressure of the gas and gravity and moves rapidly toward the placement plate, thereby realizing impact resistance detection. Since the air pressure in the gas collecting cylinder simulates the change in weight and the air pressure can be increased or decreased "steplessly", the entire detection data changes in a continuous line rather than a broken line, which greatly improves the detection accuracy.

[0018] Second, the present invention integrates anti-impact, drop and puncture detection into one mounting block, with high integration and high detection efficiency.

[0019] Third, the single detection process of the present invention can perform drop and impact resistance tests on two batteries at the same time, with high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the interior of the detection box of the present invention; Figure 3 It is a partial schematic diagram of the present invention; Figure 4 It is a schematic diagram of the internal half section of the present invention; Figure 5 It is a partial half-section schematic diagram of the present invention; Figure 6 It is a partial three-dimensional schematic diagram of the present invention; Figure 7 It is a schematic diagram of the piston cylinder of the present invention; Figure 8 is a schematic diagram of the first piston of the present invention; Fig. 9 It is a schematic diagram of the gas collecting cylinder of the present invention; Fig.10 It is a cross-sectional schematic diagram of the installation block of the present invention; Fig.11 This is a schematic diagram of the gas collecting cylinder of the present invention; Fig.12 This is a schematic diagram of the bottom of the gas collecting cylinder of the present invention; Fig.13 It is a schematic diagram of the piston disc of the present invention; Fig.14 It is a schematic diagram of the assembly of the impact block of the present invention; Fig.15 It is a three-dimensional schematic diagram of the impact block of the present invention; Fig.16 It is a schematic diagram of the explosion of the impact block of the present invention.

[0021] In the figure: 1, detection box; 2, box door; 3, first placement plate; 4, transmission plate; 5, second placement plate; 6, battery; 7, piston cylinder; 8, first opening; 9, first fixed pipe; 10, connecting pipe; 11, second fixed pipe; 12, first piston; 13, first slide pipe; 14, second opening; 15, first connecting block; 16, pull rope; 17, pulley; 18, second connecting block; 19, second slide pipe; 20, high-pressure air pump; 21, connecting pipe; 22, solenoid valve; 23, gas collecting cylinder; 24, first baffle; 25, first connecting rod; 26, first spring telescopic rod; 27, fixed plate; 28, cylinder; 29, slide plate; 30, push block; 31, limit frame; 32, second spring telescopic rod; 33, clamp rod; 34, clamp block; 35, second connecting rod; 36, rack; 37, outer gear ring; 38, third connecting rod; 39, Rotating plate; 40, slide groove; 41, first through hole; 42, second through hole; 43, piston disc; 44, mounting block; 45, first airway; 46, first air cavity; 47, first spring; 48, second piston; 49, piston rod; 50, third piston; 51, second air cavity; 52, second airway; 53, suction cup; 54, second baffle; 55, third airway; 56, slide cavity; 57, second spring; 58, slide Rod; 59, special-shaped block; 60, transmission slope; 61, first card slot; 62, plug rod; 63, third spring; 64, protrusion; 65, electromagnet; 66, first electric push rod; 67, push plate; 68, third spring telescopic rod; 69, center block; 70, middle frame; 71, outer frame; 72, transmission block; 73, matching block; 74, matching slot; 75, second electric push rod; 76, sharp needle; 77, second card slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] The present invention provides Figures 1 to 16 The environmentally friendly battery testing device for an electric power-assisted vehicle shown in the figure comprises a testing box 1, and a box door 2 is installed on the side of the testing box 1. A placement tray is fixedly arranged on the bottom inner wall of the testing box 1, and the placement tray comprises a first placement tray 3 and a second placement tray 5, and the first placement tray 3 and the second placement tray 5 are arranged side by side for placing batteries 6.

[0024] A vertical gas cylinder 23 is fixedly arranged on the side wall of the detection box 1, the top of the gas cylinder 23 is sealed, and the bottom of the gas cylinder 23 is open. The bottom opening of the gas cylinder 23 is sealed and slidably matched with a piston disc 43, and a mounting block 44 is welded and fixed to the bottom of the piston disc 43. A second sliding tube 19 is fixedly arranged on the top of the piston disc 43, and the second sliding tube 19 is slidably connected with the gas cylinder 23 and the detection box 1.

[0025] A vertical piston cylinder 7 is fixedly arranged on the inner wall of the bottom of the detection box 1, and a first piston 12 is slidably installed in the piston cylinder 7. A first sliding tube 13 is fixedly arranged on the top of the first piston 12. A first connecting block 15 is fixedly arranged on the top of the first sliding tube 13, a second connecting block 18 is fixedly arranged on the top of the second sliding tube 19, and a pull rope 16 is fixedly arranged between the first connecting block 15 and the second connecting block 18.

[0026] Two fixed pulleys 17 are arranged on the top of the detection box 1, and each of the first slide tube 13 and the second slide tube 19 corresponds to a fixed pulley 17. The pull rope 16 passes over the top of the two fixed pulleys 17 and the two fixed pulleys 17 roll against the pull rope 16, so as to slide the first slide tube 13 and the second slide tube 19 up and down.

[0027] A connecting pipe 21 is placed horizontally between the gas collecting cylinder 23 and the piston cylinder 7, and the connecting pipe 21 connects the tube cavity of the gas collecting cylinder 23 and the piston cylinder 7. A high-pressure air pump 20 is fixedly installed on the top inner wall of the detection box 1, and the air outlet of the high-pressure air pump 20 is fixedly connected to the connecting pipe 21.

[0028] A solenoid valve 22 is fixedly installed at the connection point between the connecting pipe 21 and the piston cylinder 7 to control the connection and closing of the connecting pipe 21 and the piston cylinder 7.

[0029] A first baffle 24 is slidably mounted on the inner wall of the gas collecting cylinder 23, and the first baffle 24 slides to close the connection between the connecting pipe 21 and the gas collecting cylinder 23. A first spring telescopic rod 26 is fixedly arranged on the inner wall of the gas collecting cylinder 23, and the telescopic axis of the first spring telescopic rod 26 is fixedly connected to a horizontally placed L-shaped first connecting rod 25. The first connecting rod 25 is fixedly connected to the first baffle 24.

[0030] A fixing plate 27 is fixedly disposed on the top of the piston disc 43 , and the fixing plate 27 is in abutment and transmission cooperation with the first connecting rod 25 , so as to control the connection and closing of the connecting pipe 21 and the gas collecting cylinder 23 .

[0031] A second through hole 42 is formed at the top of the piston cylinder 7 , and a first opening 8 is formed at the bottom of the piston cylinder 7 , to ensure that the air pressure above and below the first piston 12 is at atmospheric pressure, so as to facilitate the sliding of the first piston 12 .

[0032] Two clamping rods 33 are slidably mounted on the gas collecting cylinder 23, and the two clamping rods 33 are horizontally opposed to the piston disc 43. Two second clamping grooves 77 are provided on the piston disc 43, and the two second clamping grooves 77 correspond to the two clamping rods 33 one by one. Each clamping rod 33 is inserted into the gas collecting cylinder 23 and is engaged and limited with the corresponding second clamping groove 77 to fix the piston disc 43. The rod body of each clamping rod 33 that cooperates with the corresponding second clamping groove 77 is a clamping block 34 with an inclined surface at the bottom.

[0033] The gas collecting cylinder 23 is fixedly mounted with a cylinder 28, and an output rod of the cylinder 28 is in transmission cooperation with two clamping rods 33 through a transmission member, so as to drive the two clamping rods 33 to insert into or slide out of the corresponding second clamping grooves 77.

[0034] The transmission member includes a push block 30 and a second spring telescopic rod 32. A limit frame 31 is fixedly arranged on the gas collecting cylinder 23, and two symmetrically arranged abutment rods are slidably installed on the limit frame 31. The two abutment rods correspond to the two clamping rods 33 one by one, and each abutment rod is fixedly connected to the corresponding clamping rod 33 and is integrally formed.

[0035] Two second spring telescopic rods 32 are fixedly mounted on the limiting frame 31, and the two second spring telescopic rods 32 correspond to the two abutting rods one by one, and the telescopic end of each second spring telescopic rod 32 is fixedly connected to the corresponding abutting rod, so as to pull the two abutting rods to move closer.

[0036] The output rod of the cylinder 28 is fixedly connected to the slide plate 29, and the push block 30 is fixedly arranged on the slide plate 29. The end of the push block 30 away from the slide plate 29 is an isosceles trapezoidal block arranged horizontally, and the push block 30 moves along the radial direction of the piston disc 43. The end of the push block 30 away from the slide plate 29 is located between the two abutment rods and abuts and drives with the two abutment rods, so as to push the two abutment rods to slide away from each other.

[0037] The piston cylinder 7 is rotatably sleeved with an outer gear ring 37, and the top of the outer gear ring 37 is fixedly connected to a third connecting rod 38. A disc-shaped rotating plate 39 is coaxially rotatably installed inside the piston cylinder 7, and a first through hole 41 is opened on the rotating plate 39. The first through hole 41 is connected with the second through hole 42 when it is aligned, and the rotating plate 39 rotates to close the second through hole 42.

[0038] An arc-shaped slide groove 40 is provided on the piston cylinder 7 along the circumferential direction, and the slide groove 40 is communicated with the interior of the piston cylinder 7. A slider is slidably installed in the slide groove 40, and the slider is fixedly connected to the rotating plate 39 and the third connecting rod 38.

[0039] The thickness of the rotating plate 39 along the vertical direction is greater than the width of the sliding groove 40 along the vertical direction, and the rotating plate 39 blocks the notch of the sliding groove 40 located in the piston cylinder 7 .

[0040] The second connecting rod 35 is fixedly disposed on the slide plate 29 , and a rack 36 is fixedly disposed at the end of the second connecting rod 35 away from the slide plate 29 , and the rack 36 is meshed with the outer gear ring 37 to control the rotating plate 39 to close or open the second through hole 42 .

[0041] The bottom of the mounting block 44 is provided with a built-in groove with a notch facing downward, and the impact block is installed in the built-in groove. The impact block includes a center block 69, a middle frame 70 and an outer frame 71. The middle frame 70 is slidably sleeved on the center block 69, and the outer frame 71 is slidably sleeved on the middle frame 70, and the outer frame 71 is slidably installed in the built-in groove. Three vertical third spring telescopic rods 68 are fixedly arranged in the built-in groove, and the center block 69, the middle frame 70 and the outer frame 71 are each fixedly connected to the telescopic end of a third spring telescopic rod 68.

[0042] The first electric push rod 66 is fixedly installed in the built-in groove, and the first electric push rod 66 is located above the impact block. The output shaft of the first electric push rod 66 is fixedly connected to the push plate 67, and a flat and triangular prism-shaped transmission block 72 is fixedly set on the top of the center block 69, the middle frame 70 and the outer frame 71, and the push plate 67 is in contact with the transmission block 72 for transmission cooperation. A matching groove 74 is provided on the top of the center block 69 and the middle frame 70, and a matching block 73 is fixedly set on the top of the middle frame 70 and the outer frame 71. The matching block 73 on the middle frame 70 is engaged with the matching groove 74 on the center block 69 for transmission cooperation, and the matching block 73 on the outer frame 71 is engaged with the matching groove 74 on the middle frame 70 for transmission cooperation.

[0043] A sinking groove with a notch facing downward is provided in the center block 69, and a second electric push rod 75 is fixedly installed in the sinking groove. The telescopic shaft of the second electric push rod 75 is vertically downward and fixedly connected to the sharp needle 76.

[0044] A suction cup 53 is fixedly disposed at the bottom of the mounting block 44 . The suction cup 53 is located above the first placement tray 3 , and the impact block is located above the second placement tray 5 .

[0045] The mounting block 44 has a first air cavity 46 and a second air cavity 51, and the first air cavity 46 is located directly above the second air cavity 51. The second piston 48 is slidably installed in the first air cavity 46, and the third piston 50 is slidably installed in the second air cavity 51. A piston rod 49 is vertically arranged between the second piston 48 and the third piston 50, and the piston rod 49 is fixedly connected to the second piston 48 and the third piston 50. At the same time, the second piston 48 passes through the body of the mounting block 44 between the first air cavity 46 and the second air cavity 51 and is sealed and slidably matched with the body there. A first spring 47 is vertically arranged in the rodless cavity of the first air cavity 46, and the top end of the first spring 47 is fixedly connected to the mounting block 44, and the bottom end of the first spring 47 is fixedly connected to the second piston 48.

[0046] The first air passage 45 and the second air passage 52 are provided in the mounting block 44. The first air passage 45 is connected to the rod cavity of the first air cavity 46 and the second slide pipe 19. The second air passage 52 is connected to the rod cavity of the second air cavity 51 and the outside of the mounting block 44.

[0047] An air inlet is provided at the bottom of the second air cavity 51 , and the air inlet is communicated with the suction cup 53 , so that a negative pressure environment is formed between the suction cup 53 and the outer wall of the battery 6 .

[0048] A vertical first fixed tube 9 and a vertical second fixed tube 11 are fixedly arranged on the top of the detection box 1. The first sliding tube 13 is coaxially inserted upward into the first fixed tube 9 and is in sealed sliding cooperation with the first fixed tube 9. The second sliding tube 19 is coaxially inserted upward into the second fixed tube 11 and is in sealed sliding cooperation with the second fixed tube 11.

[0049] A connecting pipe 10 is disposed between the first fixed pipe 9 and the second fixed pipe 11, and the connecting pipe 10 connects the first fixed pipe 9 and the second fixed pipe 11. A second opening 14 is formed at the bottom of the first sliding pipe 13 to form a gas flow passage.

[0050] Two fixed pulleys 17 are fixedly mounted on the connecting pipe 10 , and the pull rope 16 passes through the connecting pipe 10 in a sealed manner.

[0051] The mounting block 44 has a sliding cavity 56 and a third air channel 55. The sliding cavity 56 is in communication with the rodless cavity of the second air cavity 51, one port of the third air channel 55 is in communication with the sliding cavity 56, and the other port is in communication with the rodless cavity of the second air cavity 51. The second baffle 54 is slidably mounted in the sliding cavity 56, and the port at which the third air channel 55 is in communication with the rodless cavity of the second air cavity 51 is lower than the second baffle 54 in the vertical direction. The second baffle 54 slides in the horizontal direction to seal the second air cavity 51, and the second baffle 54 also slides in the horizontal direction to seal the port at which the third air channel 55 is in communication with the sliding cavity 56.

[0052] The sliding cavity 56 is communicated with the outside of the mounting block 44, and a sliding rod 58 is slidably installed inside. The sliding rod 58 is fixedly connected to the second baffle 54, and the end of the sliding rod 58 away from the second baffle 54 is fixedly connected to the special-shaped block 59. The special-shaped block 59 is located outside the mounting block 44 and is slidably connected to the mounting block 44.

[0053] A second spring 57 is disposed in the sliding cavity 56 , one end of the second spring 57 is fixedly connected to the second baffle 54 , and the other end of the second spring 57 is fixedly connected to the mounting block 44 , so as to reset the second baffle 54 .

[0054] A vertical transmission plate 4 is fixedly arranged on the side of the first placement plate 3, and a transmission slope 60 is provided at the end of the special-shaped block 59 away from the mounting block 44. The transmission plate 4 abuts against the transmission slope 60 for transmission cooperation to push the special-shaped block 59 to slide in the horizontal direction.

[0055] The mounting block 44 is welded with a fixed buckle ring and a protrusion 64. A vertical insertion rod 62 is limitedly slidably matched between the buckle ring and the mounting block 44, and an L-shaped metal rod is welded and fixed on the top of the insertion rod 62. A third spring 63 is vertically arranged between the metal rod and the mounting block 44, and the top end of the third spring 63 is fixedly connected to the protrusion 64, and the bottom end of the third spring 63 is fixedly connected to the metal rod.

[0056] The top of the shaped block 59 is provided with a first slot 61 with an upward notch, and the insertion rod 62 is inserted and limited in the first slot 61. The shaped block 59 slides toward or away from the insertion rod 62, and at the same time, the end of the shaped block 59 close to the insertion rod 62 is cut with an inclined surface, and the inclined surface is in contact with the insertion rod 62 for transmission cooperation.

[0057] An electromagnet 65 is fixedly arranged on the gas collecting cylinder 23 , and the electromagnet 65 is magnetically matched with the metal rod on the insertion rod 62 , so as to suck the insertion rod 62 out of the first clamping groove 61 .

[0058] Working principle: Before testing, two batteries 6 are placed on the first placement tray 3 and the second placement tray 5 respectively.

[0059] When performing the drop detection, the air cylinder 28 is first started, and the output shaft of the air cylinder 28 extends and pulls the slide plate 29 close to the gas collecting cylinder 23. The slide plate 29 drives the push block 30 and the second connecting rod 35 to move close to the gas collecting cylinder 23.

[0060] As the push block 30 moves closer to the gas collecting cylinder 23, it gradually contacts the two abutting rods and pushes the two abutting rods to slide away. The two abutting rods drive the two clamping rods 33 to slide away and stretch the telescopic end of the connected second spring telescopic rod 32, and the clamping blocks 34 on the two clamping rods 33 slide out of the corresponding second clamping grooves 77 on the piston disc 43.

[0061] At this time, the piston disc 43 is released from the limit.

[0062] When the second connecting rod 35 moves closer to the gas collecting cylinder 23, it drives the rack 36 to push the outer gear ring 37 to rotate. In this embodiment, the outer gear ring 37 is a toothless gear ring, and the number of teeth on the outer gear ring 37 corresponds to the length of the slide groove 40 along the circumferential direction of the piston cylinder 7. Afterwards, the outer gear ring 37 drives the third connecting rod 38 to rotate, and the third connecting rod 38 drives the rotating plate 39 to rotate through the slider. The rotating plate 39 drives the first through hole 41 to communicate with the second through hole 42.

[0063] At this time, the air pressure above and below the first piston 12 in the piston cylinder 7 are both atmospheric pressure, and the first piston 12 can slide freely in the piston cylinder 7.

[0064] At the same time, the piston disc 43 is released from the limit, and under the action of the gravity of the piston disc 43 and the mounting block 44, the piston disc 43 and the mounting block 44 slide out of the gas collecting cylinder 23 and fall freely. At this time, the piston disc 43 drives the second slide tube 19 to slide down, and the second slide tube 19 pulls the first slide tube 13 to slide up through the pull rope 16, and the first slide tube 13 drives the first piston 12 to slide upward. In this embodiment, the weight of the piston disc 43 plus the mounting block 44 is much greater than the weight of the first piston 12.

[0065] When the mounting block 44 falls, it drives the suction cup 53 to move closer to the battery 6 on the first placement plate 3 , and also drives the special-shaped block 59 to move closer to the transmission plate 4 .

[0066] When the suction cup 53 contacts the battery 6 on the first placement plate 3 , the mounting block 44 flattens the suction cup 53 under the action of gravity of the mounting block 44 and the piston disc 43 .

[0067] During this process, the second sliding tube 19 never completely slides out of the second fixed tube 11 .

[0068] When the special-shaped block 59 contacts the transmission plate 4, the transmission plate 4 pushes the special-shaped block 59 to move closer to the insertion rod 62 through the transmission inclined surface 60 on the special-shaped block 59. At this time, the special-shaped block 59 drives the second baffle plate 54 to slide open the second air cavity 51 through the sliding rod 58. At the same time, the second baffle plate 54 slides to close the connection between the third air passage 55 and the sliding cavity 56, and the second baffle plate 54 compresses the second spring 57.

[0069] When the special-shaped block 59 contacts the insertion rod 62, the inclined surface on the special-shaped block 59 pushes the insertion rod 62 to slide upward. The insertion rod 62 drives the metal rod to move upward, and the metal rod compresses the third spring 63. As the special-shaped block 59 continues to move, the insertion rod 62 slides to the top of the special-shaped block 59. When the insertion rod 62 is aligned with the first slot 61, under the action of the elastic force of the third spring 63, the insertion rod 62 is inserted into the first slot 61, and the special-shaped block 59 is limited and fixed.

[0070] At this time, the rodless cavity of the second air cavity 51 and the suction cup 53 are in a closed state. Then the solenoid valve 22 opens the connection between the connecting pipe 21 and the piston cylinder 7. At the same time, when the piston disc 43 slides out of the gas collecting cylinder 23, the piston disc 43 drives the fixed plate 27 to slide down synchronously, and the fixed plate 27 gradually loses contact with the first connecting rod 25. At this time, the telescopic end of the first spring telescopic rod 26 extends and pushes the first connecting rod 25 to slide down, and the first connecting rod 25 drives the first baffle 24 to slide and close the connection between the connecting pipe 21 and the gas collecting cylinder 23.

[0071] Then the telescopic shaft of the cylinder 28 extends and drives the slide plate 29 to move away from the gas collecting cylinder 23, and the slide plate 29 drives the push block 30 and the second connecting rod 35 to move away from the gas collecting cylinder 23. At this time, the telescopic ends of the two second spring telescopic rods 32 retract and drive the two abutment rods to slide closer, and the two abutment rods drive the two clamping rods 33 to slide closer, and the clamping blocks 34 of the two clamping rods 33 move closer and return to their previous positions. At the same time, the second connecting rod 35 drives the rack 36 to push the outer gear ring 37 to rotate, and the outer gear ring 37 drives the rotating plate 39 to rotate through the third connecting rod 38 and the slider, and the rotating plate 39 drives the first through hole 41 and the second through hole 42 to be misaligned until the rotating plate 39 rotates to close the second through hole 42.

[0072] At this time, the lumen of the piston cylinder 7 is connected to the connecting tube 21 and is also connected to the first slide tube 13 through the second opening 14. Thereafter, the high-pressure air pump 20 is started, and the high-pressure air pump 20 injects high-pressure air into the connecting tube 21. The high-pressure air gradually fills the connecting tube 21, the lumen of the piston cylinder 7, the first slide tube 13, the first fixed tube 9, the connecting tube 10, the second fixed tube 11, the second slide tube 19, the first air passage 45, and the rod chamber of the first air chamber 46.

[0073] Afterwards, as the high-pressure air pump 20 continues to work, the high-pressure gas in the rod cavity of the first air cavity 46 increases and pushes the second piston 48 to slide up. The second piston 48 not only compresses the first spring 47, but also drives the third piston 50 to slide up through the piston rod 49. In this process, the air in the rod cavity of the second air cavity 51 is pushed out through the second air channel 52, and negative pressure is formed in the rodless cavity of the second air cavity 51 and the suction cup 53, and the suction cup 53 sucks the battery 6. At this time, the suction force of the suction cup 53 is greater than the gravity of the battery 6, and the pressure of the high-pressure gas in the piston cylinder 7 on the first piston 12 plus the gravity of the first piston 12 is less than the gravity of the piston disc 43 plus the mounting block 44.

[0074] Then the high-pressure air pump 20 continues to inject high-pressure air into the connecting tube 21. Thereafter, the suction cup 53 continues to suck the battery 6 tightly until the maximum suction force is reached, at which time the second piston 48 stops moving, and the first spring 47 is compressed to the limit and is no longer compressed. Then the high-pressure air pump 20 continues to inject high-pressure air into the connecting tube 21, and the air pressure in the piston cylinder 7 gradually increases, and the high-pressure gas in the piston cylinder 7 pushes the first piston 12 to slide down.

[0075] When the first piston 12 slides downward, it drives the first slide tube 13 downward. The first slide tube 13 pulls the second slide tube 19 upward through the pull rope 16, and the second slide tube 19 drives the piston disc 43 upward. The piston disc 43 drives the mounting block 44 upward, and the mounting block 44 drives the battery 6 on the first placement plate 3 upward through the suction cup 53.

[0076] During the upward movement of the mounting block 44 , the special-shaped block 59 and the insertion rod 62 are driven to move upward synchronously, and the insertion rod 62 drives the metal rod to move upward synchronously.

[0077] When the piston disc 43 slides back into the air collecting cylinder 23, the piston disc 43 pushes the two blocks 34 to move away. The two blocks 34 push the two clamping rods 33 to slide away, and the two clamping rods 33 drive the two abutting rods to slide away. The two abutting rods pull out the telescopic end of the connected second spring telescopic rod 32. When the two blocks 34 are compared with the corresponding second slots 77 on the piston disc 43, under the action of the spring force in the two second spring telescopic rods 32, the two blocks 34 slide back into the corresponding second slots 77 and form a limit fixation for the piston disc 43. At this time, the high-pressure air pump 20 is turned off, and the solenoid valve 22 closes the connection between the connecting pipe 21 and the piston cylinder 7.

[0078] After the piston disc 43 slides into the gas collecting cylinder 23, it also drives the fixing plate 27 to push the first connecting rod 25 to slide upward. The first connecting rod 25 not only pushes the first baffle 24 to slide to open the connection between the connecting pipe 21 and the gas collecting cylinder 23, but also pushes the telescopic end of the first spring telescopic rod 26 to retract.

[0079] Then, the electromagnet 65 is started, and the electromagnet 65 attracts the metal rod to slide upward. The metal rod not only drives the insertion rod 62 to slide out of the first slot 61 of the special-shaped block 59, but also compresses the third spring 63. When the insertion rod 62 completely slides out of the first slot 61, under the action of the elastic force of the second spring 57, the second baffle 54 slides into the second air cavity 51, and at the same time slides to open the connection between the third air channel 55 and the sliding cavity 56. At this time, the rodless cavity of the second air cavity 51 is connected to the outside world through the third air channel 55 and the sliding cavity 56, and the negative pressure in the suction cup 53 disappears and the suction force on the battery 6 disappears. Thereafter, the battery 6 falls onto the first placement plate 3 under the action of gravity, thereby completing the drop detection.

[0080] After the drop test is completed, the battery 6 on the second placement tray 5 can continue to be tested for impact resistance. At this time, the high-pressure air pump 20 is started again, and the high-pressure air enters the gas cylinder 23 through the connecting pipe 21. The air pressure in the gas cylinder 23 gradually increases, and the pressure of the high-pressure air on the piston disc 43 continues to increase. At this time, the pressure of the high-pressure gas on the piston disc 43 can be converted into the gravity applied to the piston disc 43 by the "counterweight" through calculus, mathematical statistics and other methods.

[0081] When the detection value is reached, the telescopic shaft of the cylinder 28 retracts again. The detection value can be measured by installing an air pressure sensor in the gas collecting cylinder 23. The slide plate 29 drives the push block 30 to move closer to the two abutment rods. At the same time, the slide plate 29 drives the rack 36 to drive the outer gear ring 37 to rotate through the second connecting rod 35. The outer gear ring 37 drives the rotating plate 39 to rotate through the third connecting rod 38 and the slider, and the rotating plate 39 drives the first through hole 41 to communicate with the second through hole 42.

[0082] During this process, the high-pressure air in the piston cylinder 7 flows out through the first through hole 41 and the second through hole 42, and the air pressure above and below the first piston 12 reaches atmospheric pressure again. Thereafter, the push block 30 pushes the two abutting rods to slide away, and the two abutting rods drive the two clamping rods 33 to slide away, and the clamping blocks 34 of the two clamping rods 33 slide out from the second clamping grooves 77 corresponding to the piston disc 43.

[0083] At this time, the piston disc 43 is released from the limit fixation, and under the action of the gas pressure of the high-pressure gas and gravity, the piston disc 43 drives the mounting block 44 to fall, and the mounting block 44 drives the impact block to rush downward toward the battery 6 on the second placement plate 5, so as to perform the impact resistance test.

[0084] In the process of the piston disc 43 falling and rising, in order to prevent the piston disc 43 from rotating, a square second sliding tube 19 and a square second fixing tube 11 may be used.

[0085] When it is necessary to change the contact area of ​​the impact block when impacting the battery 6, the first electric push rod 66 is started, and the telescopic shaft of the first electric push rod 66 extends and pushes the push plate 67 to slide close to the transmission block 72 on the center block 69, the middle frame 70, and the outer frame 71 in turn. When the push plate 67 contacts the transmission block 72, it pushes the transmission block 72 downward. When the transmission block 72 on the center block 69 moves downward, it drives the center block 69 to move downward synchronously, and the impact area is the smallest at this time. When the transmission block 72 on the middle frame 70 moves downward, it drives the middle frame 70 to slide down synchronously, and at the same time, the matching block 73 on the middle frame 70 pushes the center block 69 to move downward synchronously. When the transmission block 72 on the outer frame 71 moves downward, it drives the outer frame 71 to slide down synchronously, and at the same time, the matching block 73 on the outer frame 71 pushes the middle frame 70 to move downward synchronously, and the matching block 73 on the middle frame 70 pushes the center block 69 to move downward synchronously. At this time, the impact area is the largest.

[0086] When the central block 69 , the middle frame 70 and the outer frame 71 move downward, the telescopic end of the third spring telescopic rod 68 extends out, and after the push plate 67 is out of contact with all the transmission blocks 72 , all the transmission blocks 72 are reset under the elastic action of the spring inside the third spring telescopic rod 68 .

[0087] After the impact resistance test is completed, the puncture test is performed, at which time the second electric push rod 75 is started, the telescopic shaft of the second electric push rod 75 extends and pushes the sharp needle 76 to pierce the battery 6 on the second placement tray 5, thereby achieving the puncture test.

[0088] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly battery testing device for an electric power-assisted vehicle, comprising a testing box (1), characterized in that: A gas collecting cylinder (23) and a placement plate for placing batteries (6) are fixedly arranged in the detection box (1); the gas collecting cylinder (23) is located above the placement plate and has an opening at the bottom; the opening at the bottom of the gas collecting cylinder (23) is sealed and slidably matched with a piston disc (43); the top of the piston disc (43) is fixedly connected to a second sliding tube (19); the second sliding tube (19) is slidably connected to the gas collecting cylinder (23) and the detection box (1); a mounting block (44) is fixedly arranged at the bottom of the piston disc (43); an impact block is arranged at the bottom of the mounting block (44); the impact block A puncture needle is installed inside the detection box (1); a high-pressure air pump (20) is fixedly arranged inside the detection box (1); the air outlet of the high-pressure air pump (20) is fixedly connected to the connecting pipe (21), and the connecting pipe (21) is fixedly connected to the air collecting cylinder (23); a clamping rod (33) is slidably installed on the air collecting cylinder (23), a second clamping groove (77) is provided on the piston disc (43), and the clamping rod (33) and the second clamping groove (77) are clamped and limitedly engaged; a cylinder (28) is fixedly installed on the air collecting cylinder (23), and the output rod of the cylinder (28) is transmission-coordinated with the clamping rod (33) through a transmission member.

2. The environmentally friendly battery testing device for electric power-assisted vehicles according to claim 1, characterized in that: The transmission member comprises a push block (30) and a second spring telescopic rod (32); a slide plate (29) is fixedly arranged between the push block (30) and the output rod of the cylinder (28), and the push block (30) is in abutment with a clamping rod (33) for transmission cooperation; the second spring telescopic rod (32) is fixedly mounted on the gas collecting cylinder (23), and the telescopic end of the second spring telescopic rod (32) is fixedly connected to the clamping rod (33).

3. The environmentally friendly battery testing device for electric power-assisted bicycle according to claim 1, characterized in that: A vertically arranged piston cylinder (7) is fixedly arranged in the detection box (1), and a first piston (12) is sealingly and slidably fitted in the piston cylinder (7); the top of the first piston (12) is fixedly connected to a first sliding tube (13), and the first sliding tube (13) is slidably connected to the piston cylinder (7) and the detection box (1); two fixed pulleys (17) are arranged on the top of the detection box (1), and a pull rope (16) is fixedly arranged between the first sliding tube (13) and the second sliding tube (19); the pull rope (16) is wound around the two fixed pulleys (17).

4. The environmentally friendly battery testing device for electric power-assisted vehicles according to claim 3 is characterized in that: The piston cylinder (7) is fixedly connected to the connecting pipe (21), and a solenoid valve (22) is fixedly installed at the connection point; a second through hole (42) is provided at the top of the piston cylinder (7), and a first opening (8) is provided at the bottom; a rotating plate (39) is rotatably installed in the piston cylinder (7), and a first through hole (41) is provided on the rotating plate (39), and the first through hole (41) is connected to the second through hole (42) when they are aligned; an outer gear ring (37) is rotatably sleeved on the piston cylinder (7), and the outer gear ring (37) is transmission-connected to the rotating plate (39); a rack (36) is fixedly provided on the slide plate (29), and the rack (36) is meshingly matched with the outer gear ring (37).

5. The environmentally friendly battery testing device for electric power-assisted vehicles according to claim 4, characterized in that: A fixing plate (27) is fixedly arranged on the top of the piston disc (43); a first baffle plate (24) is slidably installed in the gas collecting cylinder (23), and the first baffle plate (24) slidably closes the connection between the connecting pipe (21) and the gas collecting cylinder (23); a first connecting rod (25) is fixedly connected to the bottom of the first baffle plate (24), and the fixing plate (27) and the first connecting rod (25) are in abutment and transmission cooperation; a first spring telescopic rod (26) is fixedly installed in the gas collecting cylinder (23), and the telescopic end of the first spring telescopic rod (26) is fixedly connected to the first connecting rod (25).

6. The environmentally friendly battery testing device for electric power-assisted vehicles according to claim 3, characterized in that: A first air cavity (46) and a second air cavity (51) are provided in the mounting block (44); a second piston (48) is slidably installed in the first air cavity (46), and a third piston (50) is slidably installed in the second air cavity (51); a piston rod (49) is fixedly arranged between the second piston (48) and the third piston (50), and the piston rod (49) is sealingly and slidably matched with the mounting block (44); a suction cup (53) is fixedly arranged at the bottom of the mounting block (44), and the suction cup (53) is communicated with the second air cavity (51); a first air channel (45) and a second air channel (52) are provided in the mounting block (44), the first air channel (45) is communicated with the rod cavity of the first air cavity (46), and the second air channel (52) is communicated with the rod cavity of the second air cavity (51).

7. The environmentally friendly battery testing device for electric power-assisted bicycle according to claim 6, characterized in that: A first fixed tube (9) and a second fixed tube (11) are fixedly arranged on the top of the detection box (1); a connecting tube (10) is fixedly connected between the first fixed tube (9) and the second fixed tube (11); the first sliding tube (13) is coaxially slidably inserted into the first fixed tube (9), and the second sliding tube (19) is coaxially slidably inserted into the second fixed tube (11); a second opening (14) is provided at the bottom of the first sliding tube (13), and the second sliding tube (19) is connected to the first air passage (45).

8. The environmentally friendly battery testing device for electric power-assisted bicycle according to claim 7, characterized in that: A sliding cavity (56) and a third air channel (55) are provided in the mounting block (44); the sliding cavity (56) is connected to the rodless cavity of the second air cavity (51); one port of the third air channel (55) is connected to the sliding cavity (56), and the other port is connected to the rodless cavity of the second air cavity (51); a second baffle plate (54) is slidably installed in the sliding cavity (56); the second baffle plate (54) slidably seals the second air cavity (51) and the port where the third air channel (55) is connected to the sliding cavity (56).

9. The environmentally friendly battery testing device for electric power-assisted bicycle according to claim 8, characterized in that: The sliding cavity (56) is communicated with the outside of the mounting block (44); a special-shaped block (59) is slidably mounted on the mounting block (44); a sliding rod (58) is fixedly arranged between the special-shaped block (59) and the second baffle (54); a second spring (57) is arranged in the sliding cavity (56); one end of the second spring (57) is fixedly connected to the second baffle (54), and the other end is fixedly connected to the mounting block (44); a vertical transmission plate (4) is fixedly arranged on the placement plate; a transmission inclined surface (60) is provided on the special-shaped block (59); the transmission plate (4) abuts against the transmission inclined surface (60) for transmission cooperation.

10. The environmentally friendly battery testing device for electric power-assisted vehicles according to claim 9, characterized in that: A first slot (61) is provided at the top of the special-shaped block (59); an insertion rod (62) is slidably mounted on the mounting block (44); the special-shaped block (59) is in abutment with the insertion rod (62) through an inclined surface for transmission cooperation; the insertion rod (62) and the first slot (61) are plugged and limited in cooperation; an electromagnet (65) is fixedly arranged on the gas collecting cylinder (23); the insertion rod (62) and the electromagnet (65) are magnetically engaged; a protrusion (64) is fixedly arranged on the mounting block (44); a third spring (63) is fixedly arranged between the protrusion (64) and the insertion rod (62).

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