Handle fixing structure and charging device
By designing a foldable handle structure, the problems of easy damage and inability to store existing multi-slot charger handles are solved, achieving convenient storage and stable uprightness, and improving the portability and stackability of the charging device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DONGCHENG TOOLS TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-23
AI Technical Summary
The handles of existing multi-slot chargers are easily damaged and cannot be stored, affecting handling and stacking.
Design a foldable handle structure, including a grip bar, a connecting arm, and a locking component, to restrict the position of the handle by a stop protrusion and a stop protrusion, thereby enabling switching between storage and upright states.
It achieves convenient storage and stable uprightness of the handle, improving the portability and stackability of the charging device.
Smart Images

Figure CN224401811U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of handles, and in particular to a handle fixing structure and a charging device having the handle fixing structure. [Background Technology]
[0002] In recent years, with the development of battery material technology, the application scope of lithium batteries has been greatly expanded. They are now widely used in power tools. In today's power tool industry, lithium battery packs are an unstoppable force as a new power source replacing traditional energy sources. The application of lithium battery packs is becoming increasingly widespread, and the requirements for their battery life and charging time are also becoming more stringent.
[0003] However, most multi-slot chargers that can accommodate multiple lithium battery packs are difficult to move and / or transport, and it is inconvenient to adjust their placement or storage location.
[0004] An improvement to the above structure can be found in Chinese Utility Model Patent No. CN216413939U, published on April 29, 2022, which discloses a multi-slot charger with a handle located on the top of the housing along its length, allowing workers to move the charger. However, the handle is easily damaged due to being exposed on the outside for extended periods; furthermore, the handle cannot be folded away, hindering the stacking and storage of the multi-slot charger, resulting in poor practicality.
[0005] Therefore, it is necessary to provide an improved handle fixing structure and a charging device having the handle fixing structure to overcome the defects of the prior art. [Summary of the Invention]
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a charging device with a foldable handle.
[0007] The present invention solves the existing technical problems by adopting the following technical solution: a charging device, comprising a main body and a handle movably mounted on the main body; the handle has a gripping rod, a connecting arm connected to the gripping rod, and a locking member located at the end of the connecting arm, the locking member having a support block connected to the main body and a stop protrusion extending from the support block, the main body having a housing and a mounting structure formed on the housing, the mounting structure having a storage groove for receiving the handle and a stop protrusion extending from the housing toward the handle, the stop protrusion being located in the storage groove and configured to restrict the stop protrusion.
[0008] A further improvement is as follows: the handle has a storage position and an upright position. When the handle is in the storage position, the grip rod is received in the storage slot, and the connecting arm extends along a first direction; when the handle is in the upright position, the grip rod is away from the storage slot and the stop protrusion is adjacent to the stop protrusion, and the connecting arm extends along a second direction; the first direction intersects with the second direction.
[0009] A further improvement is that the mounting structure also has a limiting protrusion extending from the housing toward the handle, and when the handle is in the upright position, the stop protrusion is located between the stop protrusion and the limiting protrusion.
[0010] A further improvement is that, along the height direction of the main body, the height of the limiting protrusion is less than the height of the stop protrusion.
[0011] A further improvement is as follows: the engaging component has a support block connected to the main body and a groove recessed from the end of the support block, the groove defining the rotation axis of the handle, and the handle rotating about the rotation axis.
[0012] A further improvement is as follows: the stop protrusion has a distal end away from the rotation axis, the distal end being a first vertical distance from the rotation axis; the stop protrusion has a proximal end facing the rotation axis, the proximal end being a second vertical distance from the rotation axis; and the first vertical distance is greater than the second vertical distance.
[0013] A further improvement is that when the handle is in the upright position, the second direction extends parallel to the height direction of the main body.
[0014] A further improvement is that the mounting structure also has a pad protruding from the housing, the grip rod abutting against the pad, and when the handle is in the storage position, at least a portion of the grip rod and the housing are spaced apart in the height direction.
[0015] A further improvement is as follows: the mounting structure has a boss connected to the slot, and the boss is movably connected to the slot.
[0016] The present invention can also solve the existing technical problems by adopting the following technical solution: a charging device, including a main body and a handle fixing structure installed on the main body; the handle fixing structure is as described above.
[0017] Compared with the prior art, the present invention has the following advantages: by setting a storage position and an upright position for the handle on the mounting structure, the handle can be completely housed in the storage slot or kept upright, which facilitates the storage or use of the handle; by setting a stop protrusion on the handle and correspondingly setting a stop protrusion and a limiting protrusion on the mounting structure, the stop protrusion of the handle is restricted to the limiting protrusion and the stop protrusion, thereby prompting the handle to remain upright, which facilitates the handling and movement of the charging device. [Attached Image Description]
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of the overall structure of the charging device of this utility model;
[0020] Figure 2 yes Figure 1 The diagram shows the charging device with its handle in an upright position.
[0021] Figure 3 yes Figure 2 The diagram shows the structure of the handle;
[0022] Figure 4 yes Figure 3 A schematic diagram of the handle at a certain angle is shown.
[0023] Figure 5 yes Figure 4 The cross-sectional view of the handle shown;
[0024] Figure 6 yes Figure 1 The diagram shows a charging device without a handle.
[0025] Figure 7 yes Figure 6 A magnified view of the charging device shown, excluding the handle;
[0026] Figure 8 yes Figure 2 Top view of the charging device shown;
[0027] Figure 9 yes Figure 8 A cross-sectional view of the charging device shown;
[0028] Figure 10 yes Figure 1 Top view of the charging device shown;
[0029] Figure 11 yes Figure 10 A cross-sectional view of the charging device shown.
Detailed Implementation Methods
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0031] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," "rear," "left," and "right," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.
[0032] Please see Figure 1 and Figure 2 As shown, the embodiments of this utility model relate to a charging device 100, which can be used to charge multiple lithium battery packs simultaneously, in stages, or sequentially, such as... Figure 1 and Figure 2 The charging device shown is a multi-slot charger that can connect up to six lithium battery packs, meeting the charging needs of multiple lithium battery packs, and can also store the lithium battery packs.
[0033] In this embodiment, the charging device 100 includes a main body 10 and a handle 2 movably mounted on the main body 10. The operator can move the charging device 100 through the handle 2 to adjust its placement position and orientation, thus avoiding interference.
[0034] The main body 10 has a generally rectangular housing 1, a mounting structure 3 formed on the housing 1, a control board installed inside the housing 1, an indicator light panel 5 electrically connected to the control board, and cables 8, an air vent 4 on the side wall of the housing 1, a winding mechanism 6 on the side wall of the housing 1, and a plug-in port 7 formed on the housing 1. The lithium battery pack can be electrically and mechanically connected to the charging device 100 through the plug-in port 7. When AC or DC power is connected to the cable 8, the power is converted by the control board and output to the lithium battery pack. The operator can check the power status of the lithium battery pack according to the indicator light panel 5. During charging, cooling airflow can enter or exit from the air vent 4 to dissipate heat from the control board and / or the lithium battery pack. When the charging device 100 is not in use, the cable 8 can be wound around the winding mechanism 6 for easy storage.
[0035] Specifically, the housing 1 has six sides, namely the top side, bottom side, left side, right side, front side, and rear side. The top side is mainly provided with a handle 2, a mounting structure 3, and an indicator light panel 5. The bottom side is mainly used for contact with the bottom surface for easy placement. In other embodiments, the top and bottom sides can be provided with mutually cooperating locking structures to facilitate the stacking of multiple charging devices 100. The left and right sides are provided with air vents 4, and the left or right side can be mainly used to arrange cables 8 and winding mechanisms 6 for winding cables 8. The front and rear sides are mainly used to arrange plug-in ports 7. The above structures are arranged on the six sides of the housing 1 to facilitate the miniaturization and simplification of the charging device 100.
[0036] In this embodiment, the mounting structure 3 is formed on the top surface of the housing 1. The mounting structure 3 is roughly U-shaped and is mainly used to install and store the handle 2, so that when the handle 2 is stored in the mounting structure 3, the handle 2 will not exceed the top surface of the housing 1, which facilitates the stacking of multiple charging devices.
[0037] Combination Figures 3 to 5 As shown, the handle 2 is U-shaped in general, and has a gripping rod 21 for gripping, a connecting arm 22 connected to the gripping rod 21, and a locking structure 23 located at the end of the connecting arm 22. The gripping rod 21, the connecting arm 22 and the locking structure 23 can be integrally formed or assembled separately.
[0038] In this embodiment, the aforementioned grip bar 21 is a conventional horizontal bar that is easy for workers to grip. It can be equipped with an anti-slip structure and / or a grip groove that is ergonomically designed and fits the shape of the fingers to meet the workers' needs for operational comfort.
[0039] The aforementioned connecting arms 22 are two in number, each disposed at the end of the grip rod 21, and the extension directions of both connecting arms 22 intersect the extension direction of the grip rod 21. In this embodiment, the extension directions of the two connecting arms 22 are perpendicular to the extension direction of the grip rod 21, and the extension directions of the two connecting arms 22 are parallel to each other. Multiple weight-reducing holes can be provided in the connecting arms 22 to reduce the overall weight of the charging device 100 while meeting the strength requirements of the handle 2.
[0040] The aforementioned engaging structures 23 are disposed on both sides of the end of the connecting arm 22, and distributed on the two side walls of the connecting arm 22 along the extension direction of the gripping rod 21. In this embodiment, there are four engaging structures 23, with one engaging structure 23 provided on each of the left and right side walls of any connecting arm 22, so as to be movably connected to the mounting structure 3. This allows for a reliable connection between the handle 2 and the main body 10 without the use of screws for fixing, making installation more convenient and quicker.
[0041] Specifically, the aforementioned locking structure 23 has a support block 231 connected to the main body 10, a locking groove 232 recessed from the end of the support block 231, a guide groove 233 formed on the support block 231, and a stop protrusion 237 protruding from the support block 231. The locking groove 232 communicates with the guide groove 233, and the mounting structure 3 can slide from the locking groove 232 into the guide groove 233.
[0042] In this embodiment, the support block 231 is a hollow cylindrical connecting structure, and the slot 232 can be a cylindrical through hole that penetrates the support block 231 in the left-right direction. The slots 232 on the left and right sides are interconnected to facilitate manufacturing. In other embodiments, the slots 232 can be two blind holes that are not interconnected and do not affect the installation and use of the slots 232.
[0043] Furthermore, the central axis of the slot 232 defines the rotation axis of the handle 2, allowing the handle 2 to rotate around the central axis of the slot 232 at a certain angle, thereby switching the handle 2 to a storage position or an upright position. Additionally, the central axis of the slot 232 is parallel to the extension direction of the grip rod 21, conforming to the operating habits of the operator.
[0044] In this embodiment, the guide groove 233 has a guide wall 234 and two connecting walls 235 connected to the guide wall 234. The two guide walls 235 form a notch 236, which communicates with the slot 232. The connecting walls 235 are respectively disposed on both sides of the guide wall 234, and any connecting wall 235 and the guide wall 234 are approximately "L"-shaped. Preferably, the two connecting walls 235 are arranged in a figure-eight shape, and the distance between the two connecting walls 235 gradually increases in the direction away from the slot 232 to provide a guiding function and facilitate assembly with the mounting structure 3.
[0045] The plane containing the guide wall 234 intersects the plane containing the connecting wall 235. The guide wall 234 is an inclined surface to guide the mounting structure 3. The notch 236, connecting wall 235, and guide wall 234 work together to guide and direct the mounting structure 3. Specifically, the guide wall 234 extends to the area where the slot 232 is located. Figure 5 As shown, this makes installation more convenient and reduces the feeling of hindrance during assembly.
[0046] In this embodiment, the stop protrusion 237 is a small lug or protrusion structure, such that the size of the area where the stop protrusion 237 is located is larger than the size of the rest of the area.
[0047] Combination Figure 6 and Figure 7 As shown, the mounting structure 3 is configured as a mounting handle 2, and more specifically, the mounting structure 3 is configured as an engagement and locking structure 23.
[0048] The mounting structure 3 includes a boss 31 connected to the slot 232, a guide surface 32 formed at the end of the boss 31, a storage groove 33 for accommodating the handle 2, a stop protrusion 34 and a limiting protrusion 35 protruding from the housing 1 toward the handle 2, and a pad 36 protruding upward from the housing 1. The shape of the storage groove 33 is adapted to the shape of the handle 2, and its size is slightly larger than the outer periphery of the handle 2, so that the handle 2 can be completely accommodated in the storage groove 33. When the handle 2 is assembled onto the main body 10, the engaging structure 23 and the mounting structure 3 are aligned. In response to the guide groove 233 engaging the guide surface 32, the guide surface 32 abuts against the guide wall 234. The boss 31 slides through the notch 236 and enters the slot 232, so that the boss 31 is movably connected in the slot 232. The assembly is simple and the connection is reliable.
[0049] In this embodiment, at least a portion of the boss 31 is housed in the slot 232. Since the slot 232 forms a through hole through the support block 231 along the direction of the rotation axis, the maximum distance between the two bosses 31 in the left-right direction is less than the length of any connecting arm 22, so that the bosses 31 are located in the through hole, preventing the engaging structure 23 from disengaging from the bosses 31.
[0050] Specifically, the guide surface 32 has a guide portion 321 adapted to the guide wall 234 and a connecting portion 322 connected to the guide portion 231. The extending direction of the guide portion 321 intersects the extending direction of the connecting portion 322. The guide portion 321 interacts with the guide wall 234, the plane of which intersects the extending surface of the connecting arm 22, and the plane of the guide portion 321 is parallel to the plane of the guide wall 234, making the sliding of the boss 31 within the notch 236 smoother.
[0051] During assembly, the operator can grasp the handle 21, abut the engaging part 23 and the mounting structure 3, and align the notch 236 with the guide part 321, so that the boss 31 slides in the guide groove 233. When the guide part 321 and the connecting part 322 slide into the slot 232, the handle 2 is assembled. The structure is simple and the operation is convenient.
[0052] Combination Figures 8 to 11 As shown, to facilitate use by staff, the handle 2 is provided with a storage position and an upright position to prevent the handle 2 from moving around randomly and hindering the operation of staff.
[0053] In this embodiment, the handle 2 has a storage position and an upright position, such as... Figure 10 The storage location shown is primarily to completely accommodate handle 2, preventing it from being damaged by bumps; such as Figure 8 The upright position shown is mainly to facilitate the movement of the charging device 100 by staff and to adjust its placement.
[0054] When the handle 2 is in the storage position, the grip rod 21 is housed in the storage slot 33, and the connecting arm 22 extends along the first direction. When the handle 2 is in the upright position, the connecting arm 22 rotates approximately 90° around the rotation axis, the grip rod 21 moves away from the storage slot 33 and the stop protrusion 34 is adjacent to the stop protrusion 237, and the stop protrusion 237 is located between the stop protrusion 34 and the limiting protrusion 35. At this time, the connecting arm 22 extends along the second direction. The first direction intersects with the second direction, and further, the first direction is perpendicular to the second direction.
[0055] The stop protrusion 34 and the limit protrusion 35 are both located in the storage groove 33, and both are used to limit the upright position of the handle 2.
[0056] Specifically, along the height direction of the main body 10, the height of the limiting protrusion 35 is less than the height of the stop protrusion 34. The stop protrusion 34 needs to completely restrict the position of the stop protrusion 237 so that the stop protrusion 237 cannot go beyond the stop protrusion 34, that is, the handle can only rotate 90°; while the height of the limiting protrusion 35 is slightly smaller, so that the stop protrusion 237 can abut against the limiting protrusion 35 and go beyond the limiting protrusion 35.
[0057] Furthermore, the stop protrusion 237 has a distal end 237a away from the rotation axis, which has a first vertical distance from the rotation axis. The stop protrusion 34 has a proximal end 34a facing the rotation axis, which has a second vertical distance from the rotation axis. The first vertical distance is greater than the second vertical distance, so that the stop protrusion 237 cannot cross the stop protrusion 34 in the first rotation direction, causing the handle 2 to remain in an upright position. To prevent the handle 2 from rotating back into the storage slot 33 in a second rotation direction opposite to the first rotation direction, a limiting protrusion 35 is provided. Without interference from the operator, the weight of the handle 2 itself will not cause the stop protrusion 237 to cross the limiting protrusion 35, thus keeping the handle 2 in an upright position.
[0058] In this embodiment, the pad 36 is disposed in the storage slot 33. When the handle 2 is in the storage position, the grip rod 21 abuts against the pad 36, and in the height direction, at least part of the grip rod 21 and the housing 1 are spaced apart, which makes it convenient for the operator to grip the grip rod 21 and improves the comfort of operation.
[0059] This utility model provides a storage position and an upright position for the handle 2 on the mounting structure 3, allowing the handle 2 to be completely housed in the storage slot 33 or kept upright, facilitating the storage or use of the handle 2. A stop protrusion 237 is provided on the handle 2, and a stop protrusion 34 and a limiting protrusion 35 are correspondingly provided on the mounting structure 3, so that the stop protrusion 237 of the handle 2 is restricted to the limiting protrusion 35 and the stop protrusion 34, thereby keeping the handle 2 upright, which facilitates the handling and movement of the charging device 100.
[0060] This utility model is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many other alternative solutions exist for the charging device of this utility model without departing from its principles and scope. The scope of protection of this utility model is determined by the claims.
Claims
1. A handle fixing structure, mounted on a main body, the handle fixing structure comprising a main body and a handle movably mounted on the main body; characterized in that: The handle has a grip rod, a connecting arm connected to the grip rod, and a locking member located at the end of the connecting arm. The locking member has a support block connected to the body and a stop protrusion extending from the support block. The body has a housing and a mounting structure formed on the housing. The mounting structure has a storage groove for receiving the handle and a stop protrusion extending from the housing toward the handle. The stop protrusion is located in the storage groove and is configured to restrict the stop protrusion.
2. The handle fixing structure according to claim 1, characterized in that: The handle has a storage position and an upright position. When the handle is in the storage position, the grip rod is received in the storage slot, and the connecting arm extends along a first direction. When the handle is in the upright position, the grip rod is away from the storage slot and the stop protrusion is adjacent to the stop protrusion, and the connecting arm extends along a second direction. The first direction intersects the second direction.
3. The handle fixing structure according to claim 2, characterized in that: The mounting structure also has a limiting protrusion extending from the housing toward the handle, wherein when the handle is in the upright position, the stop protrusion is located between the stop protrusion and the limiting protrusion.
4. The handle fixing structure according to claim 3, characterized in that: Along the height direction of the main body, the height of the limiting protrusion is less than the height of the stop protrusion.
5. The handle fixing structure according to claim 3, characterized in that: The engaging component has a support block connected to the body and a recessed groove from the end of the support block, the groove defining the rotation axis of the handle, the handle rotating about the rotation axis.
6. The handle fixing structure according to claim 5, characterized in that: The stop protrusion has a distal end away from the rotation axis, the distal end being a first vertical distance from the rotation axis, and the stop protrusion has a proximal end facing the rotation axis, the proximal end being a second vertical distance from the rotation axis, the first vertical distance being greater than the second vertical distance.
7. The handle fixing structure according to claim 4, characterized in that: When the handle is in the upright position, the second direction extends parallel to the height direction of the main body.
8. The handle fixing structure according to claim 4, characterized in that: The mounting structure also includes a pad protruding from the housing, the grip rod abutting against the pad, and when the handle is in the storage position, at least a portion of the grip rod and the housing are spaced apart in the height direction.
9. The handle fixing structure according to claim 5, characterized in that: The mounting structure has a boss connected to the slot, and the boss is movably connected to the slot.
10. A charging device, comprising a main body and a handle fixing structure mounted on the main body; characterized in that: The handle fixing structure is as described in any one of claims 1 to 9 above.