CN111251917A

CN111251917A - Safe charging equipment suitable for electric automobile

Info

Publication number: CN111251917A
Application number: CN202010231247.XA
Authority: CN
Inventors: 蔡永忠; 钱军
Original assignee: Suzhou Zhongshun Ruitai Automobile Inspection Tool Co ltd
Current assignee: Suzhou Zhongshun Ruitai Automobile Inspection Tool Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-06-09
Also published as: WO2021189944A1

Abstract

The invention belongs to the technical field of electric automobiles, and particularly relates to safe charging equipment applicable to an electric automobile. When the charging equipment receives sudden impact force, if a person trips on an electric wire of the charging equipment carelessly, the charging equipment cannot be separated from the electric vehicle, and the phenomenon that a gap is formed between parts, which are mutually nested and matched, of the charging equipment and the electric vehicle to cause sparks and damage to the charging equipment and the electric vehicle can be prevented. After the electric vehicle is charged, when people drive the electric vehicle under the condition that the charging equipment is not pulled down, the charging equipment can prevent the charging equipment and the electric vehicle from being damaged by the tension of the parts matched with each other in a nesting mode, and particularly the electric vehicle is damaged by charging pile through the pulling of an electric wire.

Description

Safe charging equipment suitable for electric automobile

Technical Field

The invention belongs to the technical field of electric automobiles, and particularly relates to safe charging equipment applicable to an electric automobile.

Background

The electric automobile is a vehicle which uses a vehicle-mounted power supply as power and drives wheels by a motor, meets various requirements of road traffic and safety regulations, has a smaller environmental impact than a traditional automobile, and has a wide prospect, wherein the electric automobile is provided with a device for specially charging the electric automobile, so that the electric automobile can be ensured to be sufficiently used.

When charging, if a person accidentally trips on the electric wire of the charging equipment, an instant impact is given to the charger, and two situations can occur in the case that the electric wire is pulled, but the electric wire is thick due to small acting force and has no great influence; secondly, the plug is pulled open, and the plug is loosened to possibly cause sparks and cause accidents due to the fact that the current of a common electric automobile is large; for this case, it is desirable that the plug is relatively tight and not easily loosened.

During charging, a small probability event exists, namely after charging is completed, if people do not pay attention to the charging, the vehicle is directly driven to leave, the wire is pulled, the plug which is generally plugged tightly can be pulled due to large acting force, but the wire is pulled due to large force transmitted by the wire, and the wire is forced to be pulled greatly and is forced to be influenced; if the plug is not pulled open, cause the condition that the electric wire pulling fills electric pile, lead to filling electric pile damage, hope that the plug grafting is loose easily to break away from to this kind of condition.

There is a certain contradiction between the two situations, one is not easy to loosen, and the other is easy to loosen.

The invention designs a safe charging device suitable for an electric automobile to solve the contradiction.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses a safe charging device applicable to an electric automobile, which is realized by adopting the following technical scheme.

The utility model provides a safe battery charging outfit that electric automobile is suitable for, it includes semicircle plug, joint, handle, spacing fixture block, and wherein the front end that connects has the semicircle plug, has the jack on the semicircle plug, and the handle, its characterized in that are installed to the rear end that connects: a speed type damper is arranged on the inner side of the joint, and a first spring is arranged between a shell of the speed type damper and the joint; one end of the elastic plate is fixedly arranged at the front end of the joint, and the limiting clamping block is fixedly arranged on the elastic plate; the two clamping blocks are symmetrically and slidably mounted on the front side of the joint and slide on the lower side of the limiting clamping block, and the two clamping blocks are fixedly connected with a shell of the speed type damper.

One end of the handle is provided with a rotary shell in a swinging way, and the rotary shell is rotatably arranged at the rear end of the joint; the I-shaped sleeve is slidably arranged in the handle, and a second spring is arranged between the I-shaped sleeve and the handle; one end of the wire is connected with the input end in the semicircular plug, the other end of the wire passes through the joint and the handle and finally penetrates out of the outer side of the handle to be connected with the output end of the charging pile, and the wire penetrates through the I-shaped sleeve and is bonded with the I-shaped sleeve; a rubber sleeve is fixedly arranged on the outer circular surface of the wire which is positioned outside the handle and connected with the charging pile, an annular disc is arranged at one end of the rubber sleeve, and one end of the rubber sleeve, which is provided with the annular disc, is inserted into the handle and mutually hooked and embedded with the I-shaped sleeve; the first fixing disc and the second fixing disc are fixedly arranged on the wire, the first fixing disc rotates on the inner side of one end, close to the handle, of the joint, and the second fixing disc is located on the inner side of one end, close to the joint, of the handle; when the rubber sleeve is not pulled normally, the electric wire between the first fixed disc and the second fixed disc is in a loose state, and the electric wire between the second fixed disc and the annular disc on the rubber sleeve is in a loose state.

The inner rod of the speed type damper is connected with one end, close to the second fixed disc, of the I-shaped sleeve through a first pull rope.

The limiting mechanism for limiting whether the handle and the rotating shell swing or not is installed on the rear side of the handle, when the electric wire penetrating out of the outer side of the handle is triggered to pull backwards, the electric wire extrudes the triggering limiting mechanism through the rubber sleeve on the outer circular surface, and the swinging function of the handle and the rotating shell is opened.

As a further improvement of the technology, the inner side of the joint is provided with a first mounting cavity, one end of the first mounting cavity is provided with a sliding cavity, one end of the sliding cavity is provided with a first rope hole penetrating through the joint, the other end of the first mounting cavity is provided with a sliding groove, and one end of the sliding groove is provided with two symmetrically distributed square holes; the speed type damper is arranged in the first installation cavity, an inner rod of the speed type damper is positioned in the sliding cavity, and a first pull rope connected with the output end of the speed type damper penetrates through the first rope hole; one end of the first spring is fixedly arranged on the shell of the speed type damper, and the other end of the first spring is fixedly arranged on the end face of the first installation cavity; the U-shaped plate is slidably mounted in the sliding groove, the U-shaped plate is fixedly connected with the speed damper through a connecting plate, two protruding ends of the U-shaped plate penetrate through two square holes to be located on the outer side of the joint, and two clamping blocks are respectively fixedly mounted on two protrusions of one end, located on the outer side of the joint, of the U-shaped plate and located on the lower side of each limiting clamping block; when the inner rod of the speed type damper is slowly pulled out, the shell of the speed type damper is static under the action of the first spring, and the two clamping blocks are positioned on the front side of the limiting clamping block arranged on the joint; when the inner rod of the speed type damper is pulled out quickly, the shell of the speed type damper is pulled to slide to one side provided with the first spring due to the increase of the damping force, and the two clamping blocks slide to the lower sides of two ends of the limiting clamping block arranged on the joint.

As a further improvement of the technology, the upper end of the handle is provided with a second wire mounting hole, the lower end of the second wire mounting hole is provided with a second mounting cavity, the lower end of the second mounting cavity is provided with a third mounting cavity, the lower side of the third mounting cavity is provided with a fourth mounting cavity, one end of the fourth mounting cavity is communicated with the third mounting cavity, and the other end of the fourth mounting cavity is communicated with the outer side of the handle; the second fixed disc is matched with the upper end face of the second mounting cavity; a second rope hole which is communicated is arranged between the upper end of the handle and the third mounting cavity.

The I-shaped sleeve consists of a first disc, a connecting sleeve and a second disc, the first disc and the second disc are respectively arranged at the upper end and the lower end of the connecting sleeve, the first disc is positioned in a third mounting cavity, the second disc is positioned in a fourth mounting cavity, the upper end of a second spring is fixedly arranged on the upper end surface of the third mounting cavity, and the lower end of the second spring is fixedly arranged on the lower end surface of the third mounting cavity; the wires are threaded through and bonded to the first disc, the connecting sleeve and the second disc.

A U-shaped disc is fixedly arranged at one end of the rubber sleeve positioned in the handle, an annular disc is fixedly arranged at the upper end of the U-shaped disc, the annular disc is positioned in a fourth mounting cavity, and a second disc of the I-shaped sleeve is nested in the U-shaped disc and is limited by the annular disc; the upper end of the third spring is fixedly arranged on the lower end face of the annular disc, and the lower end of the third spring is fixedly arranged on the lower end face of the fourth mounting cavity.

One end of the first pull rope connected with the I-shaped sleeve passes through the second rope hole.

When the electric wire is not normally pulled, the electric wire in the second mounting cavity is in a loose state.

As a further improvement of the technology, a fifth installation cavity is formed in the connector, first wire installation holes are formed in two ends of the fifth installation cavity, the first wire installation hole close to the semicircular plug is communicated with the semicircular plug, and the other first wire installation hole is communicated with one end, close to the handle, of the connector; a second limiting groove is formed in the first wire mounting hole close to the semicircular plug, a first limiting groove is formed in the first wire mounting hole close to the handle, a third fixing disc is fixedly mounted in the third limiting groove, and the first fixing disc is rotatably mounted in the first limiting groove; the electric wire between the first fixed disk and the third fixed disk is in a loose state.

As a further improvement of the technology, two annular grooves are formed in the outer circular surface of the joint close to one end of the handle, a plurality of clamping grooves are uniformly formed in the circumferential direction on the outer circular surface of the two annular grooves on the joint, two annular blocks are installed on the inner circular surface of the rotary shell, a plurality of elastic protrusions are uniformly installed in the circumferential direction on the inner circular surface between the two annular blocks on the rotary shell, and the rotary shell is installed at one end, far away from the semicircular plug, of the joint through the rotating matching of the two annular blocks and the two annular grooves; the rotary shell is provided with elastic bulges which are matched with the clamping grooves formed on the joint in a one-to-one correspondence manner.

As a further improvement of the technology, the upper end of the handle is provided with a support lug, and the handle is hinged with the rotating shell through the support lug.

As a further improvement of the technology, the second guide roller is fixedly installed in the rotary shell through a first support, the third guide roller is installed in the rotary shell through a third support, and the second guide roller and the third guide roller guide the first pull rope entering the rotary shell; the first guide roller is arranged in the rotating shell through a second support, the first guide roller guides the electric wire entering the rotating shell, and the first guide roller, the second guide roller and the third guide roller appear in pairs; the third guide roller is located at the axis of the hinge of the handle and the rotating shell.

And a partition plate for isolating the electric wire from the first pull rope is arranged in the rotating shell.

As a further improvement of the technology, two stop blocks are symmetrically arranged on two sides of the rotating shell.

As a further improvement of the technology, two third limiting grooves are symmetrically formed in the lower side of the rear end of the rotating shell.

The limiting mechanism comprises a first mounting shell, a trigger plate, a second mounting shell, a mounting rod, a limiting plate, a fourth spring, a second pull rope, an arc-shaped pull block and a plate spring, wherein a swing notch is formed in the lower end of the first mounting shell, the first mounting shell is fixedly mounted on the outer circular surface of the lower end of the handle, the second mounting shell is fixedly mounted on the outer circular surface of the upper end of the handle, the mounting rod is mounted between the first mounting shell and the second mounting shell, a through third rope hole is formed among the first mounting shell, the second mounting shell and the mounting rod, one end of the arc-shaped pull block is mounted in the first mounting shell through a fixed shaft, one end of the trigger plate is mounted on the arc-shaped pull block, the other end of the trigger plate penetrates through the swing notch in the first mounting shell and is located on the outer side of the first mounting shell, and the trigger plate is; the limiting plate is of a U-shaped structure, the limiting plate is slidably mounted in the second mounting shell, a fourth spring is mounted between the lower end of the limiting plate and the bottom surface of the second mounting shell, the lower end of the limiting plate is connected with the upper end of the arc-shaped pulling block through a second pulling rope, and the second pulling rope penetrates through a third pulling rope hole; the trigger plate is located and installs the leaf spring between the one end of first installation shell and the first installation shell.

And two bulges at the upper end of the limiting plate are matched with two third limiting grooves formed in the rotating shell.

As a further improvement of the technology, the rear end of the rotating shell is provided with an avoiding notch.

Compared with the traditional electric automobile technology, the beneficial effects of the design of the invention are as follows:

1. the two conditions of the background are identified through the speed type damper, and the locking degree of each condition is determined to have a strong practical effect.

2. According to the invention, through the speed type damper, when the charging equipment is subjected to sudden impact force, if a person accidentally trips on the electric wire of the charging equipment, the electric wire of the charging equipment can be pulled to pass through the rubber sleeve, the I-shaped sleeve and the first pull rope to pull the speed type damper, the speed type damper can drive the two clamping blocks to slide due to large damping force, so that the two clamping blocks can limit the swinging of the limiting clamping blocks, namely the limiting clamping blocks with the clamping effect cannot be separated from the bulges with the clamping effect on the electric automobile after being pulled, namely the charging equipment cannot be separated from the electric automobile when being subjected to the sudden impact force, and the phenomenon that gaps occur between parts of the charging equipment and the electric automobile which are mutually nested and matched can be prevented, sparks are caused, and the charging equipment and the electric automobile are damaged can be prevented.

3. After the electric vehicle is charged, people can drive the electric vehicle without pulling the charging equipment, because the starting of most of the vehicles is slow, the charging equipment is subjected to slow tension, the electric wire of the charging equipment can be pulled to pass through the rubber sleeve, the I-shaped sleeve and the first pull rope pulling speed type damper, the inner rod of the speed type damper can be pulled at the moment, and the speed type damper has smaller damping force, the shell of the electric vehicle is basically in a static state under the action of the first spring, under the condition, the two clamping blocks and the limiting clamping block are distributed in a staggered manner, the two clamping blocks cannot limit the limiting clamping block, the limiting clamping block can swing downwards under the extrusion of a bulge matched with the limiting clamping block on the electric vehicle and finally is completely separated, can prevent that the mutual nested complex part of battery charging outfit and electric motor car from pulling and damaging, especially the electric motor car makes it impaired through electric wire pulling charging pile.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of the installation of the semicircular plug, the joint, the rotating shell and the handle.

Fig. 4 is a schematic view of a joint structure.

Fig. 5 is a schematic view of a rotating case structure.

Fig. 6 is a schematic view of the handle structure.

Fig. 7 is an installation schematic diagram of the limiting fixture block.

Fig. 8 is a schematic view of the installation of the stop block and the I-shaped sleeve.

Fig. 9 is a schematic structural view of the I-shaped sleeve and the rubber sleeve.

Fig. 10 is a schematic view of the installation of the spacing mechanism.

Fig. 11 is a schematic structural view of the first, second, and third mounting cases.

Fig. 12 is a schematic view of the internal structure of the stopper mechanism.

Fig. 13 is a schematic view of charging of an electric vehicle at different charging positions.

Number designation in the figures: 1. a semicircular plug; 2. a joint; 3. rotating the housing; 4. a handle; 5. a velocity-type damper; 6. an electric wire; 7. a first pull cord; 8. a limiting mechanism; 9. forming a die sleeve; 10. a rubber sleeve; 11. an elastic plate; 12. a limiting clamping block; 13. a first mounting cavity; 14. a sliding cavity; 15. a first rope hole; 16. a first wire mounting hole; 17. a jack; 18. a first limit groove; 19. an annular groove; 20. a square hole; 21. a sliding groove; 23. a ring block; 24. avoiding the notch; 25. an elastic bulge; 26. a card slot; 27. a third limiting groove; 28. supporting a lug; 29. a second wire mounting hole; 30. a second rope hole; 31. a second mounting cavity; 32. a third mounting cavity; 33. a fourth mounting cavity; 34. a U-shaped plate; 35. a first spring; 36. a first fixed disk; 37. a first guide roller; 38. a second guide roller; 39. a first support; 40. a second support; 41. a clamping block; 42. a connecting plate; 43. a stopper; 44. a second fixed disk; 45. a second spring; 46. a third spring; 47. a first disc; 49. connecting sleeves; 50. a second disc; 51. a fifth mounting cavity; 52. a U-shaped disk; 53. an annular disc; 54. a first mounting case; 55. a trigger plate; 56. a second mounting case; 57. mounting a rod; 58. a third rope hole; 59. swinging the notch; 60. a limiting plate; 61. a fourth spring; 62. a second pull cord; 63. an arc-shaped pulling block; 64. a fixed shaft; 65. a plate spring; 66. a partition plate; 67. a third guide roller; 68. a third support; 69. a second limit groove; 70. and a third fixed disk.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, it includes semicircle plug 1, joint 2, handle 4, spacing fixture block 12, and wherein the front end that connects 2 has semicircle plug 1, has jack 17 on the semicircle plug 1, and handle 4, its characterized in that are installed to the rear end that connects 2: as shown in fig. 2 and 8, a speed-type damper 5 is installed inside the joint 2, the energy consumption capacity of the speed-type damper 5 is related to the speed, and the faster the deformation speed is, the greater the damping force is; a first spring 35 is arranged between the shell of the speed type damper 5 and the joint 2; one end of the elastic plate 11 is fixedly arranged at the front end of the joint 2, and the limiting clamping block 12 is fixedly arranged on the elastic plate 11; as shown in fig. 7, the two latch blocks 41 are symmetrically and slidably mounted on the front side of the joint 2 and slidably move under the limiting latch block 12, and the two latch blocks 41 are fixedly connected with the housing of the velocity-type damper 5.

As shown in fig. 3, a rotary housing 3 is mounted at one end of the handle 4 in a swinging manner, and the rotary housing 3 is rotatably mounted at the rear end of the joint 2; as shown in fig. 2 and 8, the i-shaped sleeve 9 is slidably mounted in the handle 4, and a second spring 45 is mounted between the i-shaped sleeve 9 and the handle 4; one end of an electric wire 6 is connected with the input end in the semicircular plug 1, the other end of the electric wire 6 passes through the joint 2 and the handle 4 and finally penetrates out of the outer side of the handle 4 to be connected with the output end of the charging pile, and the electric wire 6 penetrates through the I-shaped sleeve 9 and is bonded with the I-shaped sleeve 9; a rubber sleeve 10 is fixedly arranged on the outer circular surface of an electric wire 6 which is positioned outside the handle 4 and connected with the charging pile, an annular disc 53 is arranged at one end of the rubber sleeve 10, and one end of the rubber sleeve 10, which is provided with the annular disc 53, is inserted into the handle 4 and is mutually hooked and embedded with the I-shaped sleeve 9; a first fixing disc 36 and a second fixing disc 44 are fixedly mounted on the electric wire 6, the first fixing disc 36 rotates on the inner side of one end, close to the handle 4, of the joint 2, and the second fixing disc 44 is located on the inner side of one end, close to the joint 2, of the handle 4; when the electric wire 6 is not normally pulled, the electric wire 6 between the first fixed disk 36 and the second fixed disk 44 is in a loose state, and the electric wire 6 between the second fixed disk 44 and the annular disk 53 on the rubber sleeve 10 is in a loose state.

The electric wire 6 between the first fixed disk 36 and the second fixed disk 44 is designed to be in a loose state; when the handle 4 swings relative to the connector 2, the electric wire 6 fixed at one end of the handle 4 is forced to pull the electric wire 6 between the first fixing disc 36 and the second fixing disc 44, and the electric wire 6 between the first fixing disc 36 and the second fixing disc 44 can be prevented from being broken to a certain extent through the reserved loose electric wire 6.

As shown in fig. 8, the inner rod of the speed-type damper 5 and one end of the h-shaped sleeve 9 close to the second fixed disk 44 are connected by a first pull rope 7.

As shown in fig. 1, 2 and 10, a limiting mechanism 8 for limiting whether the handle 4 and the rotary shell 3 swing or not is installed at the rear side of the handle 4, and when the electric wire 6 penetrating through the outer side of the handle 4 is triggered to be pulled backwards, the electric wire 6 presses the triggering limiting mechanism 8 through a rubber sleeve 10 on the outer circular surface, so that the swinging functions of the handle 4 and the rotary shell 3 are opened.

Because the charging ports of the conventional electric automobile are arranged at different positions, the directions of the tension of the electric wire 6 on the charging equipment are different no matter when the charging equipment is subjected to sudden impact force or slow tension, and the charging equipment is pulled horizontally, reversely and laterally, the invention aims to prevent the internal structure from being triggered by the tension to operate smoothly after the charging equipment is pulled, so the designed handle 4 can swing relative to the joint 2, and the shell rotating shell 3 is additionally arranged on the basis, thereby realizing the universal rotation of the handle 4 and the joint 2.

As shown in fig. 4, the inner side of the joint 2 is provided with a first mounting cavity 13, one end of the first mounting cavity 13 is provided with a sliding cavity 14, one end of the sliding cavity 14 is provided with a first rope hole 15 penetrating through the joint 2, the other end of the first mounting cavity 13 is provided with a sliding groove 21, and one end of the sliding groove 21 is provided with two symmetrically distributed square holes 20; as shown in fig. 2, the speed-type damper 5 is installed in the first installation cavity 13, the inner rod of the speed-type damper 5 is located in the sliding cavity 14, and the first rope 7 connected to the output end of the speed-type damper 5 passes through the first rope hole 15; one end of the first spring 35 is fixedly installed on the shell of the speed type damper 5, and the other end of the first spring 35 is fixedly installed on the end face of the first installation cavity 13; the first spring 35 is pre-pressed, and has the function of resetting the speed damper 5, and meanwhile, when the charging equipment is subjected to slow tension, the first spring 35 provides resistance for the speed damper on the shell of the speed damper, so that the situation that the speed damper 5 is pulled by an inner rod of the speed damper 5 in the state to slide and the swing of the limiting clamping block 12 is influenced is prevented; the U-shaped plate 34 is slidably mounted in the sliding groove 21, the U-shaped plate 34 is fixedly connected with the speed damper 5 through a connecting plate 42, two protruding ends of the U-shaped plate 34 penetrate through the two square holes 20 and are located on the outer side of the joint 2, and the two clamping blocks 41 are respectively fixedly mounted on two protrusions of one end, located on the outer side of the joint 2, of the U-shaped plate 34 and are located on the lower side of the limiting clamping block 12; when the inner rod of the speed type damper 5 is slowly pulled out, the shell of the speed type damper 5 is static under the action of the first spring 35, and the two fixture blocks 41 are positioned at the front side of the limiting fixture block 12 arranged on the joint 2; when the inner rod of the velocity type damper 5 is pulled out rapidly, the housing of the velocity type damper 5 is pulled to slide to the side where the first spring 35 is installed due to the increase of the damping force, and the two latch blocks 41 slide to the lower sides of the two ends of the limiting latch block 12 installed on the joint 2.

As shown in fig. 6, the upper end of the handle 4 is provided with a second wire mounting hole 29, the lower end of the second wire mounting hole 29 is provided with a second mounting cavity 31, the lower end of the second mounting cavity 31 is provided with a third mounting cavity 32, the lower side of the third mounting cavity 32 is provided with a fourth mounting cavity 33, one end of the fourth mounting cavity 33 is communicated with the third mounting cavity 32, and the other end of the fourth mounting cavity 33 is communicated with the outside of the handle 4; the second fixed disc 44 is matched with the upper end surface of the second mounting cavity 31; a second rope hole 30 is arranged between the upper end of the handle 4 and the third mounting cavity 32.

As shown in fig. 9, the i-shaped sleeve 9 is composed of a first disc 47, a connecting sleeve 49 and a second disc 50, the first disc 47 and the second disc 50 are respectively installed at the upper end and the lower end of the connecting sleeve 49, the first disc 47 is located in the third installation cavity 32, the second disc 50 is located in the fourth installation cavity 33, the upper end of the second spring 45 is fixedly installed on the upper end face of the third installation cavity 32, and the lower end of the second spring 45 is fixedly installed on the lower end face of the third installation cavity 32; the electric wire 6 is passed through and bonded to the first disc 47, the connection sleeve 49 and the second disc 50. The second spring 45 has a restoring effect on the drum 9.

As shown in fig. 2 and 8, a U-shaped disc 52 is fixedly installed at one end of the rubber sleeve 10 located in the handle 4, an annular disc 53 is fixedly installed at the upper end of the U-shaped disc 52, the annular disc 53 is located in the fourth installation cavity 33, and the second disk 50 of the h-shaped sleeve 9 is nested in the U-shaped disc 52 and is limited by the annular disc 53; the upper end of the third spring 46 is fixedly mounted on the lower end surface of the annular disc 53, and the lower end of the third spring 46 is fixedly mounted on the lower end surface of the fourth mounting cavity 33. The third spring 46 acts to reset the rubber sleeve 10.

One end of the first pull rope 7 connected with the I-shaped sleeve 9 passes through the second rope hole 30.

When the cable is not normally pulled, the cable 6 in the second mounting cavity 31 is in a loose state; the purpose of this design is to prevent the cord 6 of the charging device from moving outwards after the cord 6 is pulled, preventing the cord 6 from being pulled between the handle 4 and the connector 2.

As shown in fig. 4, a fifth installation cavity 51 is formed in the connector 2, first wire installation holes 16 are formed at both ends of the fifth installation, the first wire installation hole 16 close to the semicircular plug 1 is communicated with the semicircular plug 1, and the other first wire installation hole 16 is communicated with one end of the connector 2 close to the handle 4; a second limiting groove 69 is formed in the first wire mounting hole 16 close to the semicircular plug 1, a first limiting groove 18 is formed in the first wire mounting hole 16 close to the handle 4, as shown in fig. 2 and 8, the third fixing disc 70 is fixedly mounted in the third limiting groove 27, and the first fixing disc 36 is rotatably mounted in the first limiting groove 18; the electric wire 6 between the first fixed disk 36 and the third fixed disk 70 is in a relaxed state. The reason why the electric wire 6 between the first fixing plate 36 and the third fixing plate 70 is designed to be in a loose state is to prevent the rotary shell 3 from driving the electric wire 6 inside the connector 2 to rotate when the rotary shell 3 rotates relative to the connector 2, and to buffer the damage to the connection between the electric wire 6 and the semicircular plug 1 caused by the rotation through the electric wire 6 in the loose state.

As shown in fig. 4, two annular grooves 19 are formed on the outer circumferential surface of the joint 2 near one end of the handle 4, a plurality of clamping grooves 26 are uniformly formed on the outer circumferential surface of the two annular grooves 19 on the joint 2 in the circumferential direction, as shown in fig. 5, two annular blocks 23 are mounted on the inner circumferential surface of the rotary shell 3, a plurality of elastic protrusions 25 are uniformly mounted on the inner circumferential surface of the rotary shell 3 between the two annular blocks 23 in the circumferential direction, and as shown in fig. 3, the rotary shell 3 is mounted at one end of the joint 2 away from the semicircular plug 1 through the rotation matching of the two annular blocks 23 and the two annular grooves 19; the rotary shell 3 is provided with elastic bulges 25 which are correspondingly matched with clamping grooves 26 formed on the joint 2. The rotation of the rotary shell 3 and the joint 2 is limited when the rotary shell and the joint are not normally pulled through the matching of the elastic bulge 25 and the clamping groove 26, the rotary shell 3 and the joint 2 are kept relatively static, and the normal use is not influenced; after receiving a large torsional force, the rotary shell 3 breaks through the limit of the elastic bulge 25 and the clamping groove 26 and rotates relative to the joint 2; when the wire 6 is caught by a person, the rotary case 3 is not activated, and when the wire 6 is pulled by the vehicle, the rotary case 3 is activated.

As shown in fig. 6, the handle 4 has a lug 28 at an upper end thereof, and as shown in fig. 3, the handle 4 is hingedly mounted to the rotary case 3 through the lug 28.

As shown in fig. 2 and 8, the second guide roller 38 is fixedly mounted in the rotary case 3 via a first support 39, the third guide roller 67 is mounted in the rotary case 3 via a third support 68, and the second guide roller 38 and the third guide roller 67 guide the first rope 7 entering the rotary case 3; the first guide roller 37 is installed in the rotary case 3 through the second support 40, and the first guide roller 37 guides the electric wire 6 entering the rotary case 3; the aforementioned first guide roller 37, second guide roller 38 and third guide roller 67 appear in pairs; the third guide roller 67 is located at the axis of articulation of the handle 4 with the rotary shell 3; the first pull rope 7 entering the rotating shell 3 is guided by the second guide roller 38 and the third wire roller, so that the first pull rope 7 can normally trigger the speed type damper 5.

As shown in fig. 8, a partition plate 66 for isolating the electric wire 6 from the first cord 7 is attached to the rotary case 3.

As shown in fig. 1, two stoppers 43 are symmetrically installed on both sides of the rotary housing 3 to prevent the handle 4 from swinging toward the joint 2.

As shown in fig. 5, two third limiting grooves 27 are symmetrically formed on the lower side of the rear end of the rotary housing 3.

As shown in fig. 10 and 12, the limiting mechanism 8 includes a first mounting shell 54, a trigger plate 55, a second mounting shell 56, a mounting rod 57, a limiting plate 60, a fourth spring 61, a second pull rope 62, an arc-shaped pull block 63, and a plate spring 65, wherein as shown in fig. 11, a lower end of the first mounting shell 54 is provided with a swing notch 59, the first mounting shell 54 is fixedly mounted on an outer circumferential surface of a lower end of the handle 4, the second mounting shell 56 is fixedly mounted on an outer circumferential surface of an upper end of the handle 4, the mounting rod 57 is mounted between the first mounting shell 54 and the second mounting shell 56, a third through rope hole 58 is formed between the first mounting shell 54, the second mounting shell 56, and the mounting rod 57, as shown in fig. 12, one end of the arc-shaped pull block 63 is mounted in the first mounting shell 54 through a fixing shaft 64, one end of the trigger plate 55 is mounted in the arc-shaped pull block 63, the other end of the trigger plate 55 passes through the swing notch 59 of the first mounting shell 54 and, the trigger plate 55 cooperates with the electric wire 6 located outside the handle 4; the limiting plate 60 is of a U-shaped structure, the limiting plate 60 is slidably mounted in the second mounting shell 56, a fourth spring 61 is mounted between the lower end of the limiting plate 60 and the bottom surface of the second mounting shell 56, the lower end of the limiting plate 60 is connected with the upper end of the arc-shaped pull block 63 through a second pull rope 62, and the second pull rope 62 passes through a third pull rope hole; the trigger plate 55 is mounted with a plate spring 65 between one end of the first mounting case 54 and the first mounting case 54. The plate spring 65 serves to return the trigger plate 55, and the fourth spring 61 serves to return the stopper plate 60.

As shown in fig. 2, the two protrusions at the upper end of the stopper plate 60 are engaged with the two third stopper grooves 27 formed in the rotary case 3.

As shown in fig. 5, the rear end of the rotating housing 3 is provided with an avoidance gap 24.

The electric wire 6 of the charging equipment is pulled and then extrudes the trigger plate 55, the trigger plate 55 swings around the fixing shaft 64, the trigger plate 55 swings to drive the arc-shaped pull block 63 to swing, the arc-shaped pull block 63 swings to pull the second pull rope 62, the second pull rope 62 pulls the limiting plate 60 to move downwards, the limiting plate 60 is separated from the third limiting groove 27 on the rotating shell 3, the limiting mechanism 8 loses the limitation on the swinging of the handle 4 and the rotating shell 3, the included angle between the pulling force and the sliding direction of the I-shaped sleeve 9 is ensured to be as small as possible, and the pull rope is conveniently driven to trigger the limitation of the limiting clamping block 41 on the limiting.

As shown in fig. 13, in practical application, due to different charging positions of the vehicle, the direction of the pulling force after starting is random, the handle 4 is hinged on the rotating shell 3, and the rotating shell 3 and the joint 2 rotate to ensure the pulling direction of the pulling force on the pulling rope; when the handle 4 is subjected to a pulling force perpendicular to the handle 4 and the pulling force is positioned in a plane formed by the joint 2 and the handle 4, the pulling force is perpendicular to the pulling direction of the pulling rope, the pulling force cannot pull the pulling rope, the pulling force is gradually the same as the pulling direction of the pulling rope through the swinging of the handle 4 relative to the rotating shell 3, the pulling effect of the pulling force on the pulling rope is ensured, and the pulling rope is not tensioned or loosened by swinging because the pulling rope is limited on a swinging axis by the third guide roller 67 in the swinging process of the handle 4 relative to the rotating shell 3; when handle 4 receives the pulling force of perpendicular to handle 4 and this pulling force perpendicular to connects the plane that 2 and handle 4 constitute, the pulling force draws the direction perpendicular with the stay cord this moment, and the stay cord can't be drawn to the pulling force, through rotatory shell 3 for the rotation of connecting 2, is injectd at the rotation center of keeping away from rotatory shell 3 because of the stay cord by second guide roller 38 in the rotation process, and the motion of stay cord can directly be triggered in the rotation of rotatory shell 3.

The specific working process is as follows: when the charging device designed by the invention is used, when the charging device is subjected to sudden impact force, if a person accidentally trips on the electric wire 6 of the charging device, the electric wire 6 of the charging device pulls the rubber sleeve 10, the rubber sleeve 10 slides to drive the I-shaped sleeve 9 to slide, the I-shaped sleeve 9 slides to pull the first pull rope 7, the first pull rope 7 pulls the inner rod of the speed type damper 5 to slide, but the impact force applied to the charging device is suddenly increased, so that the speed is higher, so that the resistance of the velocity type damper 5 is large, the inner rod and the housing of the velocity type damper 5 are basically kept in an integrated state, therefore, when the charging equipment is subjected to sudden impact force, the speed damper 5 can drive the connecting plate 42 to slide, the connecting plate 42 drives the U-shaped plate 34 to slide, and the U-shaped plate 34 slides to drive the two clamping blocks 41 to slide, so that the clamping blocks slide to the lower side of the limiting block to limit the limiting clamping block 12; the spacing fixture block 12 that plays clamping effect can not throw off with the arch that plays clamping effect on the electric automobile after drawing promptly, and charging equipment can not throw off with the electric motor car when receiving sudden impact force promptly, can prevent to appear the clearance between the mutual nested complex part of charging equipment and electric motor car, arouses the spark, brings the harm for charging equipment and electric motor car.

When the charging equipment is subjected to slow tension, for example, after the electric vehicle is charged, a person drives the electric vehicle away without pulling the charging equipment, at this time, the electric wire 6 of the charging equipment pulls the rubber sleeve 10, the rubber sleeve 10 slides to drive the i-shaped sleeve 9 to slide, the i-shaped sleeve 9 slides to pull the first pull rope 7, the first pull rope 7 pulls the inner rod of the speed type damper 5 to slide, the speed is relatively slow due to the slow increase of the tension, so the resistance of the speed type damper 5 is relatively small, the inner rod of the speed type damper 5 is pulled at this time, the shell of the speed type damper 5 is basically in a static state under the action of the first spring 35, under this condition, the two clamping blocks 41 and the limiting clamping block 12 are distributed in a staggered manner, the two clamping blocks 41 cannot limit the limiting clamping block 12, and the limiting clamping block 12 swings downwards under the extrusion of a protrusion matched with the electric vehicle, the electric vehicle charging pile is easy to separate, the parts of the charging equipment and the electric vehicle which are mutually nested and matched can be prevented from being damaged by tension, and particularly the electric vehicle is damaged by pulling the charging pile through the electric wire 6.

Claims

1. The utility model provides a safe battery charging outfit that electric automobile is suitable for, it includes semicircle plug, joint, handle, spacing fixture block, and wherein the front end that connects has the semicircle plug, has the jack on the semicircle plug, and the handle, its characterized in that are installed to the rear end that connects: a speed type damper is arranged on the inner side of the joint, and a first spring is arranged between a shell of the speed type damper and the joint; one end of the elastic plate is fixedly arranged at the front end of the joint, and the limiting clamping block is fixedly arranged on the elastic plate; the two clamping blocks are symmetrically and slidably arranged on the front side of the joint and slide on the lower side of the limiting clamping block, and the two clamping blocks are fixedly connected with the shell of the speed type damper;

a rotary shell is arranged at one end of the handle in a swinging manner, and the rotary shell is rotatably arranged at the rear end of the joint; the I-shaped sleeve is slidably arranged in the handle, and a second spring is arranged between the I-shaped sleeve and the handle; one end of the wire is connected with the input end in the semicircular plug, the other end of the wire passes through the joint and the handle and finally penetrates out of the outer side of the handle to be connected with the output end of the charging pile, and the wire penetrates through the I-shaped sleeve and is bonded with the I-shaped sleeve; a rubber sleeve is fixedly arranged on the outer circular surface of the wire which is positioned outside the handle and connected with the charging pile, an annular disc is arranged at one end of the rubber sleeve, and one end of the rubber sleeve, which is provided with the annular disc, is inserted into the handle and mutually hooked and embedded with the I-shaped sleeve; the first fixing disc and the second fixing disc are fixedly arranged on the wire, the first fixing disc rotates on the inner side of one end, close to the handle, of the joint, and the second fixing disc is located on the inner side of one end, close to the joint, of the handle; when the rubber sleeve is not pulled normally, the electric wire between the first fixed disc and the second fixed disc is in a loose state, and the electric wire between the second fixed disc and the annular disc on the rubber sleeve is in a loose state;

an inner rod of the speed type damper is connected with one end, close to the second fixed disc, of the I-shaped sleeve through a first pull rope;

the rear side of the handle is provided with a limiting mechanism for limiting whether the handle and the rotating shell swing or not, when the electric wire penetrating out of the outer side of the handle is triggered to pull backwards, the electric wire extrudes the triggering limiting mechanism through a rubber sleeve on the outer circular surface, so that the swinging function of the handle and the rotating shell is opened.

2. The safe charging equipment applicable to the electric automobile according to claim 1, characterized in that: the inner side of the joint is provided with a first mounting cavity, one end of the first mounting cavity is provided with a sliding cavity, one end of the sliding cavity is provided with a first rope hole penetrating through the joint, the other end of the first mounting cavity is provided with a sliding groove, and one end of the sliding groove is provided with two symmetrically distributed square holes; the speed type damper is arranged in the first installation cavity, an inner rod of the speed type damper is positioned in the sliding cavity, and a first pull rope connected with the output end of the speed type damper penetrates through the first rope hole; one end of the first spring is fixedly arranged on the shell of the speed type damper, and the other end of the first spring is fixedly arranged on the end face of the first installation cavity; the U-shaped plate is slidably mounted in the sliding groove, the U-shaped plate is fixedly connected with the speed damper through a connecting plate, two protruding ends of the U-shaped plate penetrate through two square holes to be located on the outer side of the joint, and two clamping blocks are respectively fixedly mounted on two protrusions of one end, located on the outer side of the joint, of the U-shaped plate and located on the lower side of each limiting clamping block; when the inner rod of the speed type damper is slowly pulled out, the shell of the speed type damper is static under the action of the first spring, and the two clamping blocks are positioned on the front side of the limiting clamping block arranged on the joint; when the inner rod of the speed type damper is pulled out quickly, the shell of the speed type damper is pulled to slide to one side provided with the first spring due to the increase of the damping force, and the two clamping blocks slide to the lower sides of two ends of the limiting clamping block arranged on the joint.

3. The safe charging equipment applicable to the electric automobile according to claim 1, characterized in that: a second wire mounting hole is formed in the upper end of the handle, a second mounting cavity is formed in the lower end of the second wire mounting hole, a third mounting cavity is formed in the lower end of the second mounting cavity, a fourth mounting cavity is formed in the lower side of the third mounting cavity, one end of the fourth mounting cavity is communicated with the third mounting cavity, and the other end of the fourth mounting cavity is communicated with the outer side of the handle; the second fixed disc is matched with the upper end face of the second mounting cavity; a second rope hole which is communicated is also formed between the upper end of the handle and the third mounting cavity;

the I-shaped sleeve consists of a first disc, a connecting sleeve and a second disc, the first disc and the second disc are respectively arranged at the upper end and the lower end of the connecting sleeve, the first disc is positioned in a third mounting cavity, the second disc is positioned in a fourth mounting cavity, the upper end of a second spring is fixedly arranged on the upper end surface of the third mounting cavity, and the lower end of the second spring is fixedly arranged on the lower end surface of the third mounting cavity; the electric wire passes through and is bonded to the first disc, the connecting sleeve and the second disc;

a U-shaped disc is fixedly arranged at one end, located in the handle, of the rubber sleeve, an annular disc is fixedly arranged at the upper end of the U-shaped disc, the annular disc is located in a fourth mounting cavity, and a second disc of the I-shaped sleeve is nested in the U-shaped disc and is limited by the annular disc; the upper end of the third spring is fixedly arranged on the lower end face of the annular disc, and the lower end of the third spring is fixedly arranged on the lower end face of the fourth mounting cavity;

one end of the first pull rope connected with the I-shaped sleeve penetrates through the second rope hole;

when not normally pulled, the wire in the second mounting cavity is in a slack state.

4. The safe charging equipment applicable to the electric automobile according to claim 1, characterized in that: a fifth mounting cavity is formed in the connector, first wire mounting holes are formed in the two ends of the fifth mounting cavity, the first wire mounting hole close to the semicircular plug is communicated with the semicircular plug, and the other first wire mounting hole is communicated with one end, close to the handle, of the connector; a second limiting groove is formed in the first wire mounting hole close to the semicircular plug, a first limiting groove is formed in the first wire mounting hole close to the handle, a third fixing disc is fixedly mounted in the third limiting groove, and the first fixing disc is rotatably mounted in the first limiting groove; the electric wire between the first fixed disk and the third fixed disk is in a loose state.

5. The safe charging equipment applicable to the electric automobile according to claim 1, characterized in that: the outer circular surface of one end, close to the handle, of the joint is provided with two annular grooves, a plurality of clamping grooves are circumferentially and uniformly formed in the outer circular surfaces of the two annular grooves on the joint, two annular blocks are mounted on the inner circular surface of the rotary shell, a plurality of elastic bulges are circumferentially and uniformly mounted on the inner circular surface between the two annular blocks on the rotary shell, and the rotary shell is mounted at one end, far away from the semicircular plug, of the joint through the rotary matching of the two annular blocks and the two annular grooves; the rotary shell is provided with elastic bulges which are matched with the clamping grooves formed on the joint in a one-to-one correspondence manner.

6. The safe charging equipment applicable to the electric automobile according to claim 1, characterized in that: the upper end of the handle is provided with a support lug, and the handle is hinged with the rotating shell through the support lug.

7. The safe charging equipment applicable to the electric automobile according to claim 6, characterized in that: the second guide roller is fixedly arranged in the rotating shell through a first support, the third guide roller is arranged in the rotating shell through a third support, and the second guide roller and the third guide roller guide a first pull rope entering the rotating shell; the first guide roller is mounted in the rotary shell through a second support, the first guide roller guides the electric wire entering the rotary shell, and the first guide roller, the second guide roller and the third guide roller appear in pairs; the third guide roller is positioned at the axis of the hinge joint of the handle and the rotating shell;

8. A safe charging apparatus for electric vehicles according to claim 1 or claim 7, characterized in that: two stop blocks are symmetrically arranged on two sides of the rotating shell.

9. The safe charging equipment applicable to the electric vehicle according to claim 8, characterized in that: two third limiting grooves are symmetrically formed in the lower side of the rear end of the rotating shell;

the limiting mechanism comprises a first mounting shell, a trigger plate, a second mounting shell, a mounting rod, a limiting plate, a fourth spring, a second pull rope, an arc-shaped pull block and a plate spring, wherein a swing notch is formed in the lower end of the first mounting shell, the first mounting shell is fixedly mounted on the outer circular surface of the lower end of the handle, the second mounting shell is fixedly mounted on the outer circular surface of the upper end of the handle, the mounting rod is mounted between the first mounting shell and the second mounting shell, a through third rope hole is formed among the first mounting shell, the second mounting shell and the mounting rod, one end of the arc-shaped pull block is mounted in the first mounting shell through a fixed shaft, one end of the trigger plate is mounted on the arc-shaped pull block, the other end of the trigger plate penetrates through the swing notch in the first mounting shell and is located on the outer side of the first mounting shell, and the trigger plate is; the limiting plate is of a U-shaped structure, the limiting plate is slidably mounted in the second mounting shell, a fourth spring is mounted between the lower end of the limiting plate and the bottom surface of the second mounting shell, the lower end of the limiting plate is connected with the upper end of the arc-shaped pulling block through a second pulling rope, and the second pulling rope penetrates through a third pulling rope hole; a plate spring is arranged between one end of the trigger plate positioned on the first mounting shell and the first mounting shell;

10. The safe charging device for the electric vehicle according to claim 9, wherein: the rear end of the rotating shell is provided with an avoiding notch.