A manual cleaning device for charging gun terminals

Abstract

This application relates to the field of charging equipment maintenance technology and discloses a manual cleaning device for charging gun terminals, including a front shell, a rear cover, a drive assembly, and a planetary assembly. This manual cleaning device for charging gun terminals can achieve stable cleaning without external power, making it suitable for outdoor or emergency power-free scenarios. It is superior to existing cleaning devices that rely on power supply. Pressing the handle drives the sector gear to rotate, transmitting power through a gear set including the first pinion and first large gear. The second rotating rod rolls under bidirectional limiting of a variable center distance track and an auxiliary track. The variable center distance compensates for power fluctuations during manual pressing. A tension spring causes the components to automatically reset, achieving a cycle of pressing and resetting operations, improving operational efficiency. Power is transmitted to the planetary assembly via the fourth rotating rod. The sun gear, internal gear ring, and planetary gear mesh to distribute power, causing the output rod to drive the cleaning disc and cleaning bristles to rotate smoothly. The bristles clean the terminal gaps without scratching the contacts.

Description

Technical Field

[0001] This application relates to the field of charging equipment maintenance technology, specifically a manual cleaning device for charging gun terminals. Background Technology

[0002] As a key connecting component for power transmission in a charging system, the surface cleanliness of the charging gun terminals directly affects contact performance and charging safety. During long-term plugging and unplugging, dust, hair, and other impurities from the environment easily accumulate on the terminal surface. At the same time, metal contacts are prone to oxidation and the formation of debris. If these contaminants are not cleaned in time, they will increase contact resistance, leading not only to a decrease in charging efficiency but also to localized heating due to poor contact, and even posing a short circuit hazard. Therefore, regular cleaning of the charging gun terminals is a necessary step to ensure the normal operation of the charging equipment.

[0003] Currently, there are two main types of cleaning methods for charging gun terminals: one is manual wiping using simple tools such as cotton swabs and cloths. While this method requires no additional equipment, it has significant drawbacks—the terminal surface often has fine crevices, making it difficult for simple tools to clean thoroughly, resulting in residue; furthermore, uneven wiping pressure can easily scratch the metal plating on the terminal surface, further accelerating oxidation and wear. The other type is an electric cleaning device, which achieves efficient cleaning by driving the cleaning components to rotate via a motor. However, this type of device requires an external power source or a built-in battery, making it unusable in situations without power, such as outdoor charging or emergency repairs; additionally, its structure, including components such as a motor and battery, results in a large overall size and weight, making it less portable and unsuitable for mobile maintenance needs.

[0004] Therefore, there is an urgent need for a manual cleaning device that does not rely on external power and can achieve stable cleaning, in order to solve the applicability and reliability problems of existing cleaning methods in the maintenance of charging gun terminals. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a manual cleaning device for charging gun terminals that can achieve stable cleaning without relying on external power, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a manual cleaning device for charging gun terminals, comprising a front shell, a rear cover, a drive assembly, and a planetary assembly. The drive assembly includes a sector gear, a first rotating rod, a third rotating rod, and a fourth rotating rod rotatably connected to the inner wall of the front shell. A first pinion and a first large gear are fixedly connected to the outer surface of the first rotating rod. A third pinion and a third large gear are fixedly connected to the outer surface of the third rotating rod. A fourth pinion is fixedly connected to the outer surface of the fourth rotating rod. A variable center distance track is fixedly connected to the outer surface of the front shell. A rotatable second rotating rod is mounted on the inner wall of the variable center distance track. A second pinion and a second large gear are fixedly connected to the outer surface of the second rotating rod.

[0007] The planetary assembly includes a sun gear fixedly connected to the other end of the fourth rotating rod. An internal gear ring and a protective cover are fixedly connected to the outer surface of the front shell. The internal gear ring is located inside the protective cover. An output rod is rotatably connected to the inner wall of the protective cover. A planet carrier is fixedly connected to one end of the output rod. Three connecting rods are rotatably sleeved on the inner wall of the planet carrier. A planet gear is fixedly connected to one end of each connecting rod.

[0008] Through the above scheme, the front shell and the rear cover form a closed installation space, providing a stable assembly foundation for the drive assembly and planetary assembly. The transmission of each rotating rod and sector gear in the drive assembly, together with the limiting of the second rotating rod by the variable center distance rail, builds the core framework for manual power transmission. The gear set structure of the planetary assembly realizes the secondary distribution of power. The overall structural design makes the manual drive and transmission system an organic whole, which can realize the cleaning action without relying on external power, and is suitable for the use needs of outdoor or emergency scenarios without power supply.

[0009] Furthermore, the first pinion meshes with the sector gear, the first large gear meshes with the second pinion, the second large gear meshes with the third pinion, and the third large gear meshes with the fourth pinion.

[0010] Through the above scheme, the precise meshing between the gears creates a continuous power transmission path, enabling the manual pressing power received by the sector gear to be transmitted layer by layer through components such as the first pinion and the first large gear to the fourth rotating rod, thus avoiding interruption or loss in the power transmission process.

[0011] Furthermore, an auxiliary track is fixedly connected to the inner wall of the rear cover, and the other end of the second rotating rod rolls within the inner wall of the auxiliary track.

[0012] Through the above scheme, the auxiliary track and the variable center distance track form a two-way limit on the second rotating rod, so that the second rotating rod can always maintain a stable posture during the rolling process, avoiding the rod from deflection or tilting due to unilateral force. At the same time, it also ensures the meshing accuracy of the second pinion, the second large gear and the corresponding gear, and ensures the stability of power transmission.

[0013] Furthermore, a tension spring is provided between the sector gear and the front housing, and the two ends of the tension spring are fixedly connected to the outer surfaces of the sector gear and the front housing, respectively.

[0014] Through the above scheme, the elastic reset characteristic of the tension spring enables the sector gear to automatically return to its initial position after manual pressing, eliminating the need for manual reset operation and simplifying the operation process. During the reset process, the tension of the tension spring can drive each transmission gear to rotate in the opposite direction, causing the second rotating rod to return to its initial position along the track, preparing for the next pressing drive. This realizes the cyclical operation of pressing and resetting, improving the continuous use efficiency of the device.

[0015] Furthermore, a slot is provided on the outer surface of the back cover, and a handle is fixedly connected to the bottom end of the sector gear. The handle is fitted inside the slot, and a protective sleeve is fixedly connected to the outer surface of the handle.

[0016] The above design provides the handle with room to move while limiting its range of motion, preventing the handle from shifting when pressed and causing abnormal rotation angle of the sector gear. The protective sleeve increases the friction between the hand and the handle, improving grip stability and alleviating hand discomfort during prolonged use.

[0017] Furthermore, all three planetary gears mesh with the internal gear ring, and all three planetary gears also mesh with the sun gear.

[0018] Through the above scheme, the planetary transmission structure consisting of the sun gear, the internal gear ring, and three planetary gears can evenly distribute the power transmitted by the fourth rotating rod to each planetary gear, so that the planet carrier can obtain a stable driving force. This multi-gear meshing method can disperse the load borne by a single tooth and reduce gear wear. At the same time, the structural characteristics of the planetary transmission make the output speed more stable during the power transmission process, avoiding the impact of speed fluctuations on the cleaning effect.

[0019] Furthermore, a cleaning disc is fixedly connected to one end of the output rod, and uniformly distributed cleaning bristles are fixedly connected to the outer surface of the cleaning disc.

[0020] Through the above scheme, the output rod directly transmits the rotational power of the planetary carrier to the cleaning disc, enabling the cleaning disc to drive the cleaning bristles to rotate synchronously. The even distribution of the cleaning bristles ensures that all areas of the charging gun terminals can be covered and cleaned. The soft material can fit into the gaps on the terminal surface during the cleaning process, effectively removing impurities while avoiding scratching the metal contacts of the terminals, thus ensuring the conductivity of the charging gun.

[0021] Furthermore, anti-slip sleeves are fixedly connected to the bottom of both the front shell and the rear cover.

[0022] The above solution increases the friction between the front and rear covers and the hand, preventing the device from slipping accidentally during hand operation and improving operational safety.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects: This manual cleaning device for charging gun terminals can achieve stable cleaning without external power, making it suitable for outdoor or emergency scenarios without electricity. It is superior to existing cleaning devices that rely on power supply. Pressing the handle drives the sector gear to rotate, and the power is transmitted through the first pinion, first large gear and other gear sets. The second rotating rod rolls under the bidirectional limit of the variable center distance track and the auxiliary track. The variable center distance compensates for the power fluctuation of manual pressing. The tension spring drives the components to automatically reset, realizing the cycle of pressing and resetting operations, improving the operation efficiency. The power is transmitted to the planetary assembly through the fourth rotating rod. The sun gear, internal gear ring and planetary gear mesh and distribute the power, so that the output rod drives the cleaning disc and cleaning bristles to rotate smoothly. The bristles clean the gaps of the terminals without scratching the contacts. The whole is optimized through mechanical transmission, which solves the problem of easy fluctuation of manual drive, and combines convenience and stability. Attached Figure Description

[0024] Figure 1 This is a front view of the overall structure of this application; Figure 2 This is an exploded structural diagram of the entire application; Figure 3 This is a partial rear view structural diagram of this application; Figure 4 This is a partial front view of the structure of this application; Figure 5 This is a partial exploded structural diagram of this application.

[0025] In the picture: 1. Front shell; 2. Rear cover; 3. Drive assembly; 301. Sector gear; 302. First rotating rod; 303. First pinion; 304. First large gear; 305. Variable center distance track; 306. Second rotating rod; 307. Second pinion; 308. Second large gear; 309. Third rotating rod; 310. Third pinion; 311. Third large gear; 312. Fourth rotating rod; 313. Fourth pinion; 314. Tension spring; 315. Groove; 316. Handle; 317. Protective cover; 318. Auxiliary track; 4. Planetary assembly; 401. Sun gear; 402. Internal gear ring; 403. Planetary gear; 404. Connecting rod; 405. Planetary carrier; 406. Output rod; 407. Protective cover; 5. Cleaning disc; 6. Cleaning bristles; 7. Anti-slip sleeve. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figure 1 , Figure 3 and Figure 4 This embodiment of a manual cleaning device for charging gun terminals includes a front housing 1, a rear cover 2, a drive assembly 3, and a planetary assembly 4. The drive assembly 3 includes a sector gear 301, a first rotating rod 302, a third rotating rod 309, and a fourth rotating rod 312 rotatably connected to the inner wall of the front housing 1. A first pinion 303 and a first large gear 304 are fixedly connected to the outer surface of the first rotating rod 302. A third pinion 310 and a third large gear 311 are fixedly connected to the outer surface of the third rotating rod 309. A fourth pinion 313 is fixedly connected to the outer surface of the fourth rotating rod 312. A variable center distance track 305 is fixedly connected to the outer surface of the front housing 1. A movable center distance track 305 is installed on the inner wall of the variable center distance track 305. The second rotating rod 306 is fixedly connected to a second pinion 307 and a second large gear 308 on its outer surface. The first pinion 303 meshes with the sector gear 301, the first large gear 304 meshes with the second pinion 307, the second large gear 308 meshes with the third pinion 310, and the third large gear 311 meshes with the fourth pinion 313. The precise meshing between the gears creates a continuous power transmission path, allowing the manual pressing power received by the sector gear 301 to be transmitted layer by layer to the fourth rotating rod 312 through components such as the first pinion 303 and the first large gear 304, thus avoiding interruption or loss in the power transmission process.

[0028] Please see Figure 2 , Figure 3 and Figure 4 An auxiliary track 318 is fixedly connected to the inner wall of the rear cover 2. The other end of the second rotating rod 306 rolls within the inner wall of the auxiliary track 318. The auxiliary track 318 and the variable center distance track 305 form a bidirectional limiting effect on the second rotating rod 306, ensuring that the second rotating rod 306 maintains a stable posture during rolling and preventing the rod from shifting or tilting due to unilateral force. This also ensures the meshing accuracy of the second pinion 307, the second large gear 308, and their corresponding gears, guaranteeing the stability of power transmission. A tension spring 314 is provided between the sector gear 301 and the front shell 1. The two ends of the tension spring 314 are fixedly connected to the outer surfaces of the sector gear 301 and the front shell 1, respectively. The elastic restoring characteristic of the tension spring 314 allows the sector gear 301 to automatically return to its initial position after manual pressing, eliminating the need for manual reset and simplifying the operation process. During the reset process, the tension of the spring 314 can drive each transmission gear to rotate in the opposite direction, so that the second rotating rod 306 returns to the initial position along the track, preparing for the next press drive, realizing the cyclic operation of pressing and resetting, and improving the continuous use efficiency of the device. The outer surface of the back cover 2 is provided with a slot 315, and the bottom end of the sector gear 301 is fixedly connected to the handle 316. The handle 316 is sleeved inside the slot 315, and the outer surface of the handle 316 is fixedly connected to the protective sleeve 317. The slot 315 provides the handle 316 with a space for movement, while limiting the range of movement of the handle 316, so as to prevent the handle 316 from deviating when pressing, causing the sector gear 301 to rotate abnormally. The protective sleeve 317 increases the friction between the hand and the handle 316, improves the grip stability, and can also relieve the discomfort of the hand during long-term operation.

[0029] Please see Figure 2 , Figure 4 and Figure 5The planetary assembly 4 includes a sun gear 401 fixedly connected to the other end of the fourth rotating rod 312. An internal gear ring 402 and a protective cover 407 are fixedly connected to the outer surface of the front housing 1. The internal gear ring 402 is located inside the protective cover 407. An output rod 406 is rotatably connected to the inner wall of the protective cover 407. One end of the output rod 406 is fixedly connected to a planet carrier 405. Three connecting rods 404 are rotatably sleeved on the inner wall of the planet carrier 405. One end of each connecting rod 404 is fixedly connected to a planet gear 403. All three planet gears 403 are connected to the internal gear ring 402. The three planetary gears 403 mesh with the sun gear 401. The planetary transmission structure formed by the sun gear 401, the internal gear ring 402, and the three planetary gears 403 can evenly distribute the power transmitted by the fourth rotating rod 312 to each planetary gear 403, so that the planet carrier 405 can obtain a stable driving force. This multi-gear meshing method can disperse the load borne by a single tooth and reduce gear wear. At the same time, the structural characteristics of the planetary transmission make the output speed more stable during power transmission, avoiding the impact of speed fluctuation on the cleaning effect.

[0030] Please see Figure 1 , Figure 2 and Figure 5 One end of the output rod 406 is fixedly connected to a cleaning disc 5. The outer surface of the cleaning disc 5 is fixedly connected to evenly distributed cleaning bristles 6. The output rod 406 directly transmits the rotational power of the planetary carrier 405 to the cleaning disc 5, so that the cleaning disc 5 can drive the cleaning bristles 6 to rotate synchronously. The even distribution of the cleaning bristles 6 ensures that all areas of the charging gun terminals can be covered and cleaned. The soft material can fit into the gaps on the terminal surface during the cleaning process, effectively removing impurities while avoiding scratching the metal contacts of the terminals, ensuring the conductivity of the charging gun. The bottom of the front shell 1 and the rear cover 2 are both fixedly connected to anti-slip sleeves 7. The anti-slip sleeves 7 increase the friction between the front shell 1 and the rear cover 2 and the hand, preventing the device from accidentally slipping when handheld, and improving the safety of operation.

[0031] It should be noted that the core contaminants of the charging gun terminals are dry impurities such as dust and oxide layer debris from the metal contacts that adhere during insertion and removal, rather than liquid dirt. The core cleaning requirement is to accurately remove impurities from gaps without damaging the contacts. In this device, the cleaning bristles 6 are driven by the drive assembly 3 and the planetary assembly 4 to achieve smooth rotation, allowing the bristles to evenly conform to the terminal surface and gaps. The flexibility of the bristles can penetrate deep into the terminal gaps to sweep away dust and oxide debris, while avoiding scratching the metal contacts, completely covering the cleaning requirements of the terminals, which meets the definition of cleaning in this technical scenario.

[0032] The working principle of the above embodiment is as follows: During operation, the hand holds the anti-slip sleeve 7 at the bottom of the front shell 1 and the rear cover 2 to maintain stability. Pressing the handle 316 with the protective sleeve 317, the handle 316 swings along the groove 315 and drives the sector gear 301 to rotate. At this time, the tension spring 314 between the sector gear 301 and the front shell 1 is stretched and stored. The sector gear 301 meshes with the first small gear 303, driving the first rotating rod 302 to rotate. The first large gear 304 fixed on the first rotating rod 302 rotates synchronously and drives the meshing second small gear 307, so that the second rotating rod 306 rolls stably along the variable center distance track 305 and the auxiliary track 318. The variable center distance compensates for the power fluctuation of manual pressing. The second large gear 308 drives the third small gear 310 and the third rotating rod 309 to rotate. The third large gear 311 of the third rotating rod 309 then drives the fourth small gear 313 and the fourth rotating rod 312, transmitting power to the sun gear 401. The sun gear 401 drives the three planetary gears 403 to mesh and rotate in the internal gear ring 402. The planet carrier 405 rotates synchronously with the planetary gears 403 and drives the cleaning disc 5 to rotate through the output rod 406. The cleaning bristles 6 on the cleaning disc 5 wipe the charging gun terminals. After releasing the handle 316, the tension spring 314 returns to its original position and pulls the sector gear 301 to rotate in the opposite direction. Each transmission component returns to its initial position in sequence, completing one cycle. Repeated pressing can achieve continuous cleaning.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manual cleaning device for a charging gun terminal, comprising a front shell (1), a rear cover (2), a drive assembly (3) and a planetary assembly (4), characterized in that: The drive assembly (3) includes a sector gear (301), a first rotating rod (302), a third rotating rod (309), and a fourth rotating rod (312) rotatably connected to the inner wall of the front housing (1). The outer surface of the first rotating rod (302) is fixedly connected to a first small gear (303) and a first large gear (304). The outer surface of the third rotating rod (309) is fixedly connected to a third small gear (310) and a third large gear (311). The outer surface of the fourth rotating rod (312) is fixedly connected to a fourth small gear (313). The outer surface of the front housing (1) is fixedly connected to a variable center distance track (305). The inner wall of the variable center distance track (305) is equipped with a rotatable second rotating rod (306). The outer surface of the second rotating rod (306) is fixedly connected to a second small gear (307) and a second large gear (308). The planetary assembly (4) includes a sun gear (401) fixedly connected to the other end of the fourth rotating rod (312). An internal gear ring (402) and a protective cover (407) are fixedly connected to the outer surface of the front shell (1). The internal gear ring (402) is located inside the protective cover (407). An output rod (406) is rotatably connected to the inner wall of the protective cover (407). A planet carrier (405) is fixedly connected to one end of the output rod (406). Three connecting rods (404) are rotatably sleeved on the inner wall of the planet carrier (405). A planetary gear (403) is fixedly connected to one end of each connecting rod (404).

2. A manually cleaning device for a charging gun terminal according to claim 1, characterized in that: The first pinion (303) meshes with the sector gear (301), the first large gear (304) meshes with the second pinion (307), the second large gear (308) meshes with the third pinion (310), and the third large gear (311) meshes with the fourth pinion (313).

3. The manual cleaning device for charging gun terminals according to claim 1, characterized in that: An auxiliary track (318) is fixedly connected to the inner wall of the rear cover (2), and the other end of the second rotating rod (306) rolls in the inner wall of the auxiliary track (318).

4. The manual cleaning device for charging gun terminals according to claim 1, characterized in that: A tension spring (314) is provided between the sector gear (301) and the front housing (1), and the two ends of the tension spring (314) are fixedly connected to the outer surfaces of the sector gear (301) and the front housing (1), respectively.

5. A manual cleaning device for charging gun terminals according to claim 1, characterized in that: The outer surface of the back cover (2) is provided with a slot (315), and the bottom end of the sector gear (301) is fixedly connected to a handle (316). The handle (316) is sleeved inside the slot (315), and the outer surface of the handle (316) is fixedly connected to a protective sleeve (317).

6. The manual cleaning device for charging gun terminals according to claim 1, characterized in that: All three planetary gears (403) mesh with the internal gear ring (402), and all three planetary gears (403) also mesh with the sun gear (401).

7. A manual cleaning device for charging gun terminals according to claim 1, characterized in that: One end of the output rod (406) is fixedly connected to a cleaning disc (5), and the outer surface of the cleaning disc (5) is fixedly connected with uniformly distributed cleaning bristles (6).

8. The manual cleaning device for charging gun terminals according to claim 1, characterized in that: The bottom of both the front shell (1) and the rear cover (2) are fixedly connected with anti-slip sleeves (7).

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