A mistake-proof plug for electric wheelchair

Abstract

The utility model relates to charging equipment technical field, especially a kind of mistake-proof plug for electric wheelchair, including female head and male head, male head and female head are all provided with three-hole jack, the middle hole of three-hole jack is positive, the jack of the both sides of middle hole is negative, when male head is inserted into female head, bushing is sleeved in the socket to be connected on female head, by the middle hole of three-hole jack is positive, the jack of the both sides of middle hole is negative, this configuration mode, male head can be inserted regardless of positive and negative insertion, normal power-on can be realized, so that the elderly can use charger to charge scooter, when male head is inserted into female head, bushing is sleeved in the socket, to improve the connection stability between male head and female head, male head insertion action can also be guided, improve the convenience when using.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment technology, and in particular to a mis-proof plug for electric wheelchairs. Background Technology

[0002] With the continuous development of rechargeable device technology, a variety of rechargeable devices are emerging. These devices are widely used in mobile offices, entertainment, business, and medical applications, greatly enriching people's lives. However, for some elderly people, electric wheelchairs have become an essential tool for daily travel. When charging electric wheelchairs, the elderly face difficulties due to physical and environmental limitations, making it difficult to use the plug. Traditional three-prong plugs are difficult to insert, with only one insertion direction. Furthermore, traditional three-prong plugs far exceed the current requirements for charging electric wheelchairs. Therefore, a reverse-insertion plug for electric wheelchairs is needed to solve these problems. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an anti-misoperation plug for electric wheelchairs, which solves the problem of preventing the plug from burning out due to misoperation during use in the prior art.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0005] An error-proof plug for electric wheelchairs, comprising:

[0006] The device includes a female connector and a male connector, both of which have three-hole sockets. The middle hole of the three-hole socket is the positive terminal, and the two holes on either side of the middle hole are the negative terminals. The female connector has a slot, and the male connector has a sleeve. When the male connector is inserted into the female connector, the sleeve is fitted into the slot to connect to the female connector.

[0007] To achieve the above technical solution, the middle hole of the three-hole socket is designated as the positive terminal, and the holes on both sides of the middle hole are designated as the negative terminals. This configuration allows the male connector to be plugged in either way, ensuring normal power supply. This makes it convenient for the elderly to use the charger to charge their mobility scooters and also prevents incorrect plug insertion. When the male connector is inserted into the female connector, the sleeve fits into the slot, improving the connection stability between the male and female connectors. It also guides the insertion of the male connector, enhancing ease of use.

[0008] In one embodiment of the present invention, the slot is provided with a limiting groove, and the sleeve is provided with a limiting protrusion. The limiting protrusion and the limiting groove are matched in size. When the sleeve is inserted into the slot, the limiting protrusion is located in the limiting groove.

[0009] To achieve the above technical solution, when an encoder is needed for testing, the direction of the male connector insertion must be maintained in the test direction. Therefore, a limiting groove is reserved on the slot. During testing, the limiting protrusion on the socket, in conjunction with the limiting groove, is used to position the insertion direction of the male connector to meet the testing requirements. Under normal use, the limiting protrusion on the socket does not need to be set, and the usage requirements can still be met.

[0010] In one embodiment of the present invention, a positioning base is provided on the female head, and a protective platform is provided on the positioning base along the circumference of the slot, with the protective platform extending out of the positioning base.

[0011] By implementing the above technical solution, the protective platform can prevent external debris from entering the slot, improve the safety of the slot, and also limit the insertion of the male connector into the female connector.

[0012] In one embodiment of the present invention, the male head is provided with a sleeve limiting plate, and the area of ​​the sleeve limiting plate is larger than the area of ​​the opening end of the slot.

[0013] To achieve the above technical solution, the insertion limiting plate can limit the depth of the male head inserted into the female head, and the outer diameter of the insertion limiting plate is smaller than the inner diameter of the protective platform, so the protective platform can provide radial limiting for the insertion limiting plate.

[0014] In one embodiment of the present invention, a dustproof end cap is also provided on the positioning chassis.

[0015] By implementing the above technical solution, the dustproof end cap can protect the female connector when it is not in use, preventing external damage to the female connector.

[0016] In one embodiment of the present invention, a slot guide platform is provided on the inner wall of the sleeve near the slot. The slot guide platform is a flared guide platform, and the open end of the slot guide platform faces the slot.

[0017] To achieve the above technical solution, a slot guide platform can be set up to provide guidance when the socket covers the slot, thereby improving the ease of inserting the socket.

[0018] As described above, the present invention provides an anti-misalignment plug for electric wheelchairs, which has the following advantages: by using the middle hole of the three-hole socket as the positive terminal and the holes on both sides of the middle hole as the negative terminals, this configuration allows the male plug to be inserted in any direction, ensuring normal power supply. This makes it convenient for the elderly to charge their mobility scooters and also prevents incorrect plug insertion. When the male plug is inserted into the female plug, the sleeve fits into the slot, improving the connection stability between the male and female plugs. It also guides the insertion of the male plug, enhancing ease of use. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of the anti-misoperation plug for electric wheelchairs disclosed in an embodiment of this utility model.

[0020] Figure 2 The diagram shown is a schematic diagram of the plug limiting plate structure of the anti-misoperation plug for electric wheelchairs disclosed in this embodiment of the present invention.

[0021] Figure 3 The diagram shown is a schematic diagram of the socket structure of the anti-misoperation plug for electric wheelchairs disclosed in an embodiment of this utility model.

[0022] Component designation explanation

[0023] 1. Female connector; 2. Male connector; 3. Three-hole socket; 4. Slot; 5. Sleeve; 6. Limiting groove; 7. Limiting protrusion; 8. Positioning base; 9. Sleeve limiting plate; 10. Dustproof end cap; 11. Slot guide platform; 12. Protective platform. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Please see Figures 1 to 3This utility model provides a mis-insertion plug for electric wheelchairs, including a female plug 1 and a male plug 2. Both the male plug 2 and the female plug 1 are provided with three-hole sockets 3. The middle hole of the three-hole socket 3 is the positive terminal, and the two holes on both sides of the middle hole are the negative terminals. The female plug 1 is provided with a slot 4, and the male plug 2 is provided with a sleeve 5. When the male plug 2 is inserted into the female plug 1, the sleeve 5 is fitted into the slot 4 to connect to the female plug 1. By using the middle hole of the three-hole socket 3 as the positive terminal and the two holes on both sides of the middle hole as the negative terminals, this configuration allows the male plug 2 to achieve normal power supply regardless of whether it is inserted in the correct or incorrect direction. This makes it convenient for the elderly to use the charger to charge the wheelchair and also avoids the situation of incorrect plug insertion. When the male plug 2 is inserted into the female plug 1, the sleeve 5 fits into the slot 4, thereby improving the connection stability between the male plug 2 and the female plug 1. At the same time, it also guides the insertion action of the male plug 2, improving the convenience of use.

[0026] The slot 4 is provided with a limiting groove 6, and the sleeve 5 is provided with a limiting protrusion 7. The limiting protrusion 7 and the limiting groove 6 are matched in size. When the sleeve 5 is inserted into the slot 4, the limiting protrusion 7 is located in the limiting groove 6. When it is necessary to use the encoder for testing, the direction of insertion of the male connector 2 needs to be maintained in the test direction. Therefore, the limiting groove 6 is reserved on the slot 4. During testing, the limiting protrusion 7 on the sleeve 5, in conjunction with the limiting groove 6, is used to position the insertion direction of the male connector 2 to meet the testing requirements. Under normal use, the limiting protrusion 7 does not need to be provided on the sleeve 5 to meet the usage requirements.

[0027] The female head 1 is provided with a positioning base 8. A protective platform 12 is provided on the positioning base 8 along the circumference of the slot 4. The protective platform 12 extends out of the positioning base 8. The protective platform 12 can prevent external debris from entering the slot 4, improve the safety of the slot 4, and also limit the insertion of the male head 2 into the female head 1.

[0028] The male connector 2 is provided with a sleeve limiting plate 9. The area of ​​the sleeve limiting plate 9 is larger than the area of ​​the opening end of the slot 4. The sleeve limiting plate 9 can limit the depth of the male connector 2 inserted into the female connector 1. Furthermore, the outer diameter of the sleeve limiting plate 9 is smaller than the inner diameter of the protective platform 12. The protective platform 12 is used to radially limit the sleeve limiting plate 9.

[0029] The positioning chassis 8 is also equipped with a dustproof end cover 10. The dustproof end cover 10 can protect the female head 1 when it is not in use, and prevent external damage to the female head 1.

[0030] A slot guide platform 11 is provided on the inner wall of the sleeve 5 near the slot 4. The slot guide platform 11 is a flared guide platform, and the open end of the slot guide platform 11 is set towards the slot 4. By setting the slot guide platform 11, it can provide guidance when the sleeve 5 covers the slot 4, thereby improving the ease of insertion of the sleeve 5.

[0031] This invention uses a three-hole socket with the middle hole as the positive terminal and the holes on both sides of the middle hole as the negative terminals. This configuration allows the male connector to be plugged in either way, ensuring normal power supply. This makes it convenient for the elderly to charge their mobility scooters. When the male connector is inserted into the female connector, the sleeve fits into the slot, improving the connection stability between the male and female connectors. It also guides the insertion of the male connector, enhancing ease of use.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A mis-proof plug for electric wheelchairs, characterized in that, include: The device includes a female connector and a male connector, both of which have three-hole sockets. The middle hole of the three-hole socket is the positive terminal, and the two holes on either side of the middle hole are the negative terminals. The female connector has a slot, and the male connector has a sleeve. When the male connector is inserted into the female connector, the sleeve is fitted into the slot to connect to the female connector.

2. The anti-misoperation plug for electric wheelchairs according to claim 1, characterized in that: The slot is provided with a limiting groove, and the sleeve is provided with a limiting protrusion. The limiting protrusion and the limiting groove are matched in size. When the sleeve is inserted into the slot, the limiting protrusion is located in the limiting groove.

3. The anti-misoperation plug for electric wheelchairs according to claim 1, characterized in that: The female head is provided with a positioning base, and a protective platform is provided on the positioning base along the circumference of the slot, with the protective platform extending out of the positioning base.

4. The anti-misoperation plug for electric wheelchairs according to claim 1, characterized in that: The male head is provided with a sleeve limiting plate, and the area of ​​the sleeve limiting plate is larger than the area of ​​the opening end of the slot.

5. The anti-misoperation plug for electric wheelchairs according to claim 3, characterized in that: The positioning chassis is also equipped with a dustproof end cap.

6. The anti-misoperation plug for electric wheelchairs according to claim 1, characterized in that: A slot guide platform is provided on the inner wall of the socket near the slot. The slot guide platform is a flared guide platform, and the open end of the slot guide platform faces the slot.

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