Anti-mutual-plugging positive and negative plug device
By designing plugs and insertion cavities of different diameters and snap-fit structures, the problem of easily inserting positive and negative plugs in the wrong direction is solved, achieving a stable connection between the plug and socket and preventing equipment damage and safety hazards.
Patent Information
- Application Number
- CN202423095845.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In existing technology, the positive and negative plugs and sockets have the same structure, which makes it easy for the plug to be inserted in reverse. This can cause equipment malfunctions at best, and damage to equipment and safety hazards at worst.
The positive and negative plugs are designed with different diameters for their insertion parts and cavities, ensuring that the positive plug can only be inserted into the positive socket and the negative plug can only be inserted into the negative socket. The locking mechanism and locking protrusions ensure stable insertion.
It effectively prevents reversed positive and negative terminals, improves connection stability, and reduces equipment damage and safety hazards.
Smart Images
Figure CN223680521U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to plug technical field, especially, relate to a prevent mutual insertion positive and negative plug device. BACKGROUND
[0002] Positive and negative plug is widely used in various electrical circuits, and plays the role of connecting or disconnecting circuit. In the prior art, positive and negative plug and positive and negative socket are same structure, can be inserted mutually, thus lead to our often positive and negative plug plug reverse, light cause equipment malfunction, heavy cause equipment damage and security risk, we urgently need to find a kind of positive and negative plug of preventing mutual insertion structure, to reduce the problem of positive and negative misplug. CONTENT OF UTILITY MODEL
[0003] The utility model aims at providing a prevent mutual insertion positive and negative plug device, to solve the technical problem of the prior art, that is, the positive and negative plug and the positive and negative socket are same structure, can be inserted mutually, thus lead to our often positive and negative plug plug reverse, light cause equipment malfunction, heavy cause equipment damage and security risk.
[0004] To achieve the above object, the utility model embodiment provides a prevent mutual insertion positive and negative plug device, which comprises a positive plug and a negative plug. The positive plug can be adaptively inserted into a positive socket on a base, and the negative plug can be adaptively inserted into a negative socket on the base. The positive plug comprises a first plug-in part. The negative plug comprises a second plug-in part. The positive socket is provided with a first insertion cavity, and the negative socket is provided with a second insertion cavity. The diameter of the first plug-in part is greater than the diameter of the second plug-in part, the diameter of the first insertion cavity is greater than the diameter of the second insertion cavity, the first plug-in part can be adaptively plugged into the first insertion cavity but cannot be adaptively inserted into the second insertion cavity, and the second plug-in part can be adaptively plugged into the second insertion cavity but cannot be adaptively inserted into the first insertion cavity.
[0005] Optionally, the positive plug is provided with a first clamping part inside, and the negative plug is provided with a second clamping part inside. The first clamping part is used to maintain the stable state of the plug-in connection between the positive plug and the positive socket, and the second clamping part is used to maintain the stable state of the plug-in connection between the negative plug and the negative socket.
[0006] Optionally, the positive plug comprises a positive shell. The positive shell is provided with a positive plug-in cavity communicating with the outside world. The first plug-in part is partially arranged in the positive plug-in cavity. When the first plug-in part is inserted into the first insertion cavity, the outer wall of the first insertion cavity is inserted into the positive plug-in cavity, and the first clamping part can abut against the outer wall of the first insertion cavity, so that the plug-in connection between the first plug-in part and the first insertion cavity is more stable.
[0007] Optionally, the negative plug comprises a negative shell; a negative plug cavity communicating with the outside world is arranged in the negative shell; the second plug part is partially arranged in the negative plug cavity; when the second plug part is inserted into the second plug cavity, the outer wall of the second plug cavity is inserted into the negative plug cavity; the second clamping part can abut against the outer wall of the second plug cavity, so that the second plug part and the second plug cavity are more stably plugged.
[0008] Optionally, the first clamping part comprises a reset member and a clamping head; the reset member is connected with the clamping head; a clamping hole is arranged in the positive plug cavity and communicates with the inside of the positive shell; the clamping head extends into the positive plug cavity from the clamping hole to realize abutting clamping.
[0009] Optionally, the first clamping part further comprises a pressing member; the pressing member is connected with the clamping head; the pressing member extends out of the positive shell to the outside world; when the pressing member is pressed, the reset member is compressed; the clamping head is retracted into the positive shell from the clamping hole; when the pressing member is released, the reset member is restored; the clamping head extends into the positive plug cavity from the clamping hole to realize abutting clamping.
[0010] Optionally, the second clamping part has the same structure as the first clamping part.
[0011] Optionally, the outer wall of the first plug cavity and the outer wall of the second plug cavity are both provided with clamping protrusions; the clamping protrusions are used for clamping with the clamping head, so that the locking state is maintained after plugging.
[0012] Optionally, the positive shell and the negative shell are both provided with anti-skid protrusions at the top.
[0013] Optionally, the positive shell and the negative shell are both provided with grooves; the two pressing members extend out of the grooves to the outside world.
[0014] Compared with the prior art, the one or more technical solutions of the positive and negative plug device provided by the embodiment of the utility model have at least one of the following technical effects:
[0015] By virtue of the size difference between the first plug part, the second plug part, the first plug cavity and the second plug cavity, the first plug part cannot be inserted into the second plug cavity with a smaller diameter because of its larger diameter; the second plug part cannot be inserted into the first plug cavity with a larger diameter because of its smaller diameter, and the matching is obviously not good, so that the user is prevented from inserting the positive and negative plugs reversely, and the problems caused by the misinsertion of the positive and negative plugs are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0017] Figure 1 It is a structural schematic diagram of the present application.
[0018] Figure 2 It is another angle structural enlarged view of the present application.
[0019] Figure 3 It is a sectional structural schematic diagram of the present application.
[0020] In the drawings, various reference signs represent:
[0021] 100, positive plug; 110, first plug-in part; 120, first clamping part; 121, reset member; 122, clamping head; 123, clamping hole; 124, pressing member; 130, positive shell; 140, positive plug-in cavity;
[0022] 200, negative plug; 210, second plug-in part; 220, second clamping part; 230, negative shell; 240, negative plug-in cavity;
[0023] 300, positive socket; 310, first insertion cavity;
[0024] 400, negative socket; 410, second insertion cavity;
[0025] 500, clamping protrusion;
[0026] 600, anti-skid protrusion;
[0027] 700, groove. DETAILED DESCRIPTION
[0028] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.
[0029] In the description of the embodiments of the utility model, it is understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model.
[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0031] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0032] In one embodiment of the utility model, according to Figures 1-3 As shown in the figure, a kind of positive and negative pole plug 200 device to prevent mutual insertion, including positive pole plug 100 and negative pole plug 200;Positive pole plug 100 can be adapted to be inserted into the positive pole socket 300 on the base, negative pole plug 200 can be adapted to be inserted into the negative pole socket 400 on the base, and positive pole plug 100 includes first plug-in part 110;Negative pole plug 200 includes second plug-in part 210;Positive pole socket 300 is equipped with first insertion cavity 310, and negative pole socket 400 is equipped with second insertion cavity 410, characterized in that, the diameter of first plug-in part 110 is greater than the diameter of second plug-in part 210, the diameter of first insertion cavity 310 is greater than the diameter of second insertion cavity 410, first plug-in part 110 can be adapted to be plugged into first insertion cavity 310 but cannot be adapted to be inserted into second insertion cavity 410, and second plug-in part 210 can be adapted to be plugged into second insertion cavity 410 but cannot be adapted to be inserted into first insertion cavity 310.
[0033] Specifically, by the size difference between the first and second plug-in parts 110 and 210 and the first and second insertion cavities 310 and 410, the first plug-in part 110 is too large in diameter to be inserted into the second insertion cavity 410 which is small in diameter, and the second plug-in part 210 is too small in diameter to be inserted into the first insertion cavity 310 which is large in diameter, thus obviously not matching, thereby preventing the user from inserting the positive and negative poles reversely and reducing the problems caused by the misinsertion of the positive and negative poles.
[0034] In another embodiment of the utility model, according to Figure 1 And 2 As shown in the figure, the positive pole plug 100 comprises a positive pole shell 130, the positive pole shell 130 is internally provided with a positive pole plug-in cavity 140 which is communicated with the outside, and the first plug-in part 110 is partially arranged in the positive pole plug-in cavity 140, when the first plug-in part 110 is inserted into the first insertion cavity 310, the outer wall of the first insertion cavity 310 is inserted into the positive pole plug-in cavity 140, and the first clamping part 120 can abut against the outer wall of the first insertion cavity 310, so that the first plug-in part 110 and the first insertion cavity 310 are more stably plugged. The negative pole plug 200 comprises a negative pole shell 230, the negative pole shell 230 is internally provided with a negative pole plug-in cavity 240 which is communicated with the outside, and the second plug-in part 210 is partially arranged in the negative pole plug-in cavity 240, when the second plug-in part 210 is inserted into the second insertion cavity 410, the outer wall of the second insertion cavity 410 is inserted into the negative pole plug-in cavity 240, and the second clamping part 220 can abut against the outer wall of the second insertion cavity 410, so that the second plug-in part 210 and the second insertion cavity 410 are more stably plugged.
[0035] Specifically, the positive pole plug 100 and the negative pole plug 200 are the same except the size difference, and the first and second clamping parts 120 and 220 can realize a clamping effect after the positive pole plug 100 and the negative pole plug 200 are plugged with the positive and negative pole sockets 300 and 400, so that the connection is more firm and will not fall off.
[0036] In another embodiment of the utility model, according to Figures 1-3As shown, the positive plug 100 is provided with a first clamping part 120, and the negative plug 200 is provided with a second clamping part 220, the first clamping part 120 is used for keeping the stable state of the positive plug 100 and the positive socket 300, and the second clamping part 220 is used for keeping the stable state of the negative plug 200 and the negative socket 400. The first clamping part 120 comprises a reset member 121 and a clamping head 122; the reset member 121 is connected with the clamping head 122, the positive plug cavity 140 is provided with a clamping hole 123, the clamping hole 123 is communicated with the inside of the positive shell 130, and the clamping head 122 is inserted into the positive plug cavity 140 from the clamping hole 123 to realize abutting clamping. The first clamping part 120 further comprises a pressing member 124, the pressing member 124 is connected with the clamping head 122, the pressing member 124 is stretched out from the positive shell 130 to the outside, the pressing member 124 is pressed, the reset member 121 is compressed, the clamping head 122 is retracted into the positive shell 130 from the clamping hole 123, the pressing member 124 is released, the reset member 121 is restored, and the clamping head 122 is reinserted into the positive plug cavity 140 from the clamping hole 123 to realize abutting clamping.
[0037] The second clamping part 220 is the same as the first clamping part 120.
[0038] It can be understood that, during connection, the pressing member 124 is pressed, the clamping head 122 is retracted into the positive shell 130 from the clamping hole 123, the positive plug 100 can be inserted into the positive socket 300, after the pressing member 124 is released, the clamping head 122 is reinserted into the positive plug cavity 140 from the clamping hole 123 under the action of the reset member 121 to realize abutting clamping, and the reset member 121 is a spring or the like. After abutting clamping, an acting force is given, so that the positive plug 100 is not easy to fall off, and the stability is improved.
[0039] In another embodiment of the utility model, according to Figures 1-3 As shown, the outer wall of the first insertion cavity 310 and the outer wall of the second insertion cavity 410 are both provided with a clamping protrusion 500, the clamping protrusion 500 is used for clamping with the clamping head 122, so that the locking state is kept after insertion. Specifically, one clamping protrusion 500 is arranged, the clamping protrusion 500 is used for clamping with the clamping head 122, so that the locking state is kept after insertion, and it is not easy to loosen. At the same time, when it is desired to be pulled out, the pressing member 124 needs to be pressed again, so that the clamping head 122 is retracted into the positive shell 130 from the clamping hole 123 to realize unlocking.
[0040] In another embodiment of the utility model, according to Figure 2 And 3 As shown, the positive shell 130 and the negative shell 230 are both provided with anti-skid protrusions 600 at the top. Specifically, the anti-skid protrusions 600 play an anti-skid role when the positive plug 100 and the negative plug 200 are inserted.
[0041] In another embodiment of the present application, according to Figure 1 and 2 As shown, the positive electrode shell 130 and the negative electrode shell 230 are each provided with a groove 700, and the two pressing members 124 respectively extend from the two grooves 700 to the outside. The pressing member 124 is arranged in the groove 700, which plays a positioning role. The user's hand can easily find the groove 700 and press downward with force, which is convenient for the user to press.
[0042] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, the architecture form can be flexible and variable without departing from the concept of the present application, and a series of products can be derived. Any simple deduction or replacement should be considered as belonging to the patent protection range determined by the submitted claims.
Claims
1. A positive and negative pole plug device for preventing cross insertion, comprising a positive pole plug and a negative pole plug; the positive pole plug is adapted to be inserted into a positive pole socket on a base, the negative pole plug is adapted to be inserted into a negative pole socket on the base, the positive pole plug comprises a first plug part; the negative pole plug comprises a second plug part; the positive pole socket is provided with a first insertion cavity, and the negative pole socket is provided with a second insertion cavity, characterized in that, The diameter of the first plug-in part is larger than that of the second plug-in part, the diameter of the first insertion cavity is larger than that of the second insertion cavity, the first plug-in part can be plugged into the first insertion cavity but cannot be plugged into the second insertion cavity, and the second plug-in part can be plugged into the second insertion cavity but cannot be plugged into the first insertion cavity.
2. The positive and negative plug device of claim 1, wherein, The positive electrode plug is internally provided with a first clamping part, and the negative electrode plug is internally provided with a second clamping part, the first clamping part is used for maintaining the stable state of the positive electrode plug and the positive electrode socket, and the second clamping part is used for maintaining the stable state of the negative electrode plug and the negative electrode socket.
3. The positive and negative plug device of claim 2, wherein, The positive electrode plug comprises a positive electrode shell, the positive electrode shell is internally provided with a positive electrode plug-in cavity in communication with the outside, and the first plug-in part is partially arranged in the positive electrode plug-in cavity; when the first plug-in part is inserted into the first insertion cavity, the outer wall of the first insertion cavity is inserted into the positive electrode plug-in cavity, the first clamping part can abut against the outer wall of the first insertion cavity, and the first plug-in part and the first insertion cavity are more stably plugged.
4. The positive and negative plug device of claim 3, wherein, The negative electrode plug comprises a negative electrode shell, the negative electrode shell is internally provided with a negative electrode plug-in cavity in communication with the outside, and the second plug-in part is partially arranged in the negative electrode plug-in cavity; when the second plug-in part is inserted into the second insertion cavity, the outer wall of the second insertion cavity is inserted into the negative electrode plug-in cavity, the second clamping part can abut against the outer wall of the second insertion cavity, and the second plug-in part and the second insertion cavity are more stably plugged.
5. The positive and negative plug device of claim 4, wherein, The first clamping part comprises a reset member and a clamping head, the reset member is connected with the clamping head, the positive electrode plug-in cavity is internally provided with a clamping hole in communication with the inside of the positive electrode shell, and the clamping head extends into the positive electrode plug-in cavity from the clamping hole to realize abutting clamping.
6. The positive and negative plug device of claim 5, wherein, The first clamping part further comprises a pressing member, the pressing member is connected with the clamping head, the pressing member extends out of the positive electrode shell to the outside, the reset member is compressed by pressing the pressing member, the clamping head is retracted into the positive electrode shell from the clamping hole, the reset member is restored by releasing the pressing member, and the clamping head extends into the positive electrode plug-in cavity from the clamping hole to realize abutting clamping again.
7. The positive and negative plug device of claim 6, wherein, The second clamping part has the same structure as the first clamping part.
8. The positive and negative plug device of claim 7, wherein, The outer wall of the first insertion cavity and the outer wall of the second insertion cavity are both provided with clamping protrusions, the clamping protrusions are used for clamping with the clamping head, so that the locking state is maintained after plugging.
9. The positive and negative plug device of claim 4, wherein, The positive electrode shell and the negative electrode shell are both provided with anti-skid protrusions at the top.
10. The positive and negative pole plug device preventing cross insertion according to claim 6, wherein The positive electrode shell and the negative electrode shell are both provided with grooves, and the two pressing members extend out of the grooves to the outside.