Detachable cover structure and coating tank comprising same
By using a blocking component to seal the gaps in the cap structure of the coating tank, the problem of foreign matter entering is solved, achieving the effect of preventing foreign matter from entering and improving the service life of the cap and the quality of the slurry.
Patent Information
- Application Number
- CN202520539559.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing coating tank's hinged lid structure makes it easy for foreign objects to enter, affecting the slurry's pass rate, and it is difficult to prevent debris generated by the wear of rotating parts.
The fixed cover and the movable cover are connected by a rotating component. The blocking assembly, including a first bend and a second bend, seals the gap to prevent foreign objects from entering, and the wear debris of the rotating component is isolated on the side of the fixed cover.
It effectively prevents foreign objects from entering the coating tank, reduces the entry of wear debris and dust, and improves the service life of the retractable cover structure and the quality of the slurry.
Smart Images
Figure CN223822409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating tank technology, and more specifically, to a retractable cap structure and a coating tank containing the same. Background Technology
[0002] Coating the lithium-ion battery separator is a crucial process step that significantly impacts the performance and stability of the battery. The coating tank, a vital component of the coating system, is the primary output point for the slurry. The coating tank not only frequently requires opening its hinged lid for inspection and slurry status checks, but also necessitates opening the lid during system shutdowns or maintenance to clean, dry, and wipe the inner cylinder and agitator attachments. Furthermore, dust and powder from the production workshop sometimes adhere to the air and settle on the coating tank's lid, posing a risk of falling into the tank. Therefore, the design and structure of the lid directly affect the use of the coating tank and the slurry yield.
[0003] Currently, most retractable lid coatings on the market are flat, plate-type structures. The panel and the lid are relatively parallel, connected by hinges or pivots to achieve the flipping function. Firstly, gaps exist at the connection point, increasing the risk of foreign objects entering the coating tank. Secondly, the hinges or pivots of the retractable lid structure inevitably wear down over time due to repeated opening and closing, and the resulting debris and other foreign objects can also enter the tank, leading to product defects and significant economic losses. Therefore, how to prevent external foreign objects from entering the coating tank with a retractable lid structure is a crucial issue to overcome in coating production. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing coating tank retractable lid structures that allow foreign objects to fall in easily. It provides a retractable lid structure and a coating tank containing it. Foreign objects such as debris generated by the wear of rotating parts or dust adhering to the air will be blocked and cannot enter the opening through the gap between the fixed lid and the retractable lid. It has a good effect of preventing foreign objects from falling in, and the structure is simple and effective.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A retractable cover structure includes a fixed cover and a movable cover, which are connected by a rotating component. The structure also includes a blocking component disposed between the fixed cover and the movable cover to prevent foreign objects from passing through the gap between them.
[0007] In use, the movable cover has an opening below it, and a fixed cover serves as the mounting structure for the movable cover and the container. The fixed cover is fixed to the panel of the container device to be used. The movable cover protects the opening of the container. The rotating component opens and closes the movable cover. A blocking component seals the gap between the fixed cover and the movable cover. In this way, even if wear debris is generated when the rotating component repeatedly rotates to open and close, the wear debris will not fall into the opening. On the other hand, dust and other foreign objects attached to the air cannot enter the container through the gap between the fixed cover and the movable cover. It has a good effect of preventing foreign objects from falling in. The structure is simple and effective.
[0008] Furthermore, the blocking assembly includes a first bending portion and a second bending portion, the first bending portion being disposed at the end of the fixed cover and the second bending portion being disposed at the end of the movable cover; the rotating member is fixed on the fixed cover and located on one side of the first bending portion, the second bending portion is rotatably connected to the rotating member, the movable cover is located on the other side of the first bending portion, and the first bending portion and the second bending portion abut against each other.
[0009] The first bend of this invention blocks the rotating component from one side of the opening to be covered. The second bend, through its bending shape, extends beyond the first bend and connects to the rotating component. The movable cover achieves the closing function. Wear debris generated by the repeated opening and closing of the rotating component will not fall into the opening but will be isolated by the first bend on the side of the fixed cover. Furthermore, the first and second bends abut against each other, closing the passage between the fixed cover and the movable cover, preventing foreign objects from entering the opening through the gap between them. Unlike traditional plate-type planar opening and closing rotating structures, this invention uses the second bend to shift the rotating connection position of the rotating component away from the opening. At the same time, the first bend closes the passage for possible debris or dust and other foreign objects adhering to the air. Thus, after the movable cover structure is closed, debris generated by the wear of the rotating component or dust and other foreign objects adhering to the air will be blocked on one side of the first bend and cannot enter the opening, providing a good effect of preventing foreign objects from falling in. The structure is simple and effective.
[0010] Furthermore, the end of the first bend abuts against the inner wall of the second bend.
[0011] Furthermore, the fixed cover and the first bent portion are perpendicular to each other, and a first rounded corner transition structure is provided at the junction of the fixed cover and the first bent portion.
[0012] It should be noted that the fixed cover can be an L-shaped workpiece formed in one piece. One end of the L-shaped workpiece is fixed parallel to the fixed surface, and the other end of the L-shaped workpiece acts as a baffle to isolate the rotating part from the opening side and cut off the passage that foreign objects may pass through.
[0013] Furthermore, the second bend is an inverted U-shape. It should be noted that the movable cover can be a one-piece molded workpiece, wherein the second bend is an inverted U-shape. The inverted U-shaped second bend avoids the first bend and connects with the rotating part, shifting the rotational connection position between the rotating part and the movable cover to a place away from the opening. In this way, the gap at the hinge of the rotating part is also shifted to a place away from the opening.
[0014] Furthermore, a second rounded corner transition structure is provided at the corner of the second bend, and a third rounded corner transition structure is also provided at the junction of the second bend and the movable cover. Rounded corner transitions not only reduce stress concentration and improve structural strength, but also reduce the risk of damage to other workpieces caused by excessively sharp corners.
[0015] Furthermore, the movable cover also includes a folded edge at its end, located at the end of the movable cover opposite to the second bend. The folded edge forms a brim-like effect at the end of the movable cover, providing a protective covering around the edge of the opening to be covered, further reducing the risk of foreign objects entering from the end of the movable cover.
[0016] Furthermore, the rotating component is a hinge, and the opening and closing angle range of the hinge is 0° to 120°. The opening and closing angle of the movable cover can be adjusted using a hinge that limits the opening and closing angle.
[0017] Furthermore, the movable cover structure also includes an elastic pad for buffering the impact force when closing, the elastic pad being disposed on the inner side wall of the movable cover. The elastic pad can be located at the impact position when the movable cover closes. When the movable cover is closed, it will abut against the edge of the opening to be covered. The elastic pad avoids hard contact between the movable cover and the opening to be covered, ensuring a certain sealing performance while also reducing wear from opening and closing the movable cover.
[0018] This utility model also provides a coating tank, including a tank body and a retractable lid structure as described above, wherein the retractable lid structure is disposed on the top surface of the tank body.
[0019] Furthermore, the minimum distance 'a' between the junction of the second bend and the movable cover and the tank body is 2mm to 4mm.
[0020] When the retractable cap structure is installed on the coating tank, the junction of the second bend and the retractable cap must not come into contact with the tank body on the installation side. If it does, wear and tear will inevitably occur, and the resulting debris will fall into the opening. However, the distance between the junction of the second bend and the retractable cap and the tank body cannot be too large, otherwise it will increase the risk of foreign objects entering the tank. Therefore, in order to ensure the purpose of preventing foreign objects from entering and to avoid contact interference, the minimum distance between the two is set to 2mm to 4mm.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] (1) The first bending part of this utility model blocks the rotating part on one side of the opening to be covered. The second bending part is connected to the rotating part by bending over the first bending part. The movable cover realizes the closing function. In this way, when the rotating part realizes the function of repeated rotation and opening and closing, even if wear debris is generated, the wear debris will not fall into the opening, but will be isolated by the first bending part on the side of the fixed cover. The first bending part and the second bending part abut against each other, closing the passage between the fixed cover and the movable cover. Foreign objects cannot enter the opening through the gap between the two.
[0023] (2) This utility model is different from the traditional plate-type planar opening and closing rotating structure. This utility model uses the second bending part to shift the rotating connection position of the rotating part to a place far away from the opening. At the same time, the first bending part closes the channel that may enter the debris and foreign objects. In this way, after the cover structure is closed, the debris generated by the wear of the rotating part or the dust and other foreign objects attached to the air will be blocked on one side of the first bending part and cannot enter the opening. It has a good effect of preventing foreign objects from falling in. The structure is simple and effective. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the retractable cover structure in this utility model;
[0025] Figure 2 This is a detailed view of the first and second bends in this utility model;
[0026] Figure 3 This is a front view of the retractable cap structure applied to a coating tank in this utility model;
[0027] Figure 4 This is a top view of the retractable cap structure applied to a coating tank in this utility model.
[0028] The markings in the diagram are explained below:
[0029] 1-Fixed cover, 12-First bend, 2-Modible cover, 22-Second bend, 221-First section, 222-Second section, 223-Third section, 23-Folded edge, 3-Rotating component, 4-Elastic pad, 5-Handle, 100-Tank body. Detailed Implementation
[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0032] Example 1
[0033] This embodiment uses a retractable cap structure applied to a coating tank as an example:
[0034] like Figure 1 As shown, a retractable cover structure includes a fixed cover 1 and a movable cover 2, which are connected by a rotating member 3. The structure is characterized by further including a blocking component disposed between the fixed cover 1 and the movable cover 2 to prevent foreign objects from passing through the gap between them.
[0035] like Figure 1 As shown, the blocking assembly includes a first bending portion 12 and a second bending portion 22. The first bending portion 12 is located at the end of the fixed cover 1, and the second bending portion 22 is located at the end of the movable cover 2. The rotating member 3 is fixed on the fixed cover 1 and located on one side of the first bending portion 12. The second bending portion 22 is rotatably connected to the rotating member 3. The movable cover 2 is located on the other side of the first bending portion 12. The first bending portion 12 and the second bending portion 22 abut against each other.
[0036] like Figure 2 As shown, the end of the first bend 12 abuts against the inner wall of the second bend 22.
[0037] In this embodiment, the fixed cover 1 and the first bent portion 12 are perpendicular to each other, and a first rounded corner transition structure is provided at the junction of the fixed cover 1 and the first bent portion 12.
[0038] Specifically, in this embodiment, the fixed cover 1 and the first bent part 12 are integrally formed L-shaped workpieces. One end of the L-shaped workpiece is fixed parallel to the fixed surface, and the other end of the L-shaped workpiece forms a baffle to isolate the rotating part 3 from the opening side and cut off the channel through which foreign objects may pass.
[0039] In this embodiment, the second bend 22 is an inverted U-shape. It should be noted that the movable cover 2 and the second bend are integrally formed workpieces, wherein the second bend 22 is an inverted U-shape. The inverted U-shaped second bend 22 avoids the first bend 12 and connects to the rotating member 3, shifting the rotational connection position of the rotating member 3 and the movable cover 2 to a place away from the opening. In this way, the gap at the hinge of the rotating member 3 is also shifted to a place away from the opening.
[0040] like Figure 2 As shown, specifically, the fixed cover 1 includes a horizontal section and a vertical section that are perpendicular to each other, and the first bend 12 is the vertical section; the second bend 22 includes a first section 221, a second section 222 and a third section 223, the first section 221 and the third section 223 are parallel to each other, and the second section 222 is parallel to the movable cover 2; the inner sidewall of the second section 222 abuts against the end of the vertical section of the first bend 12, and the abutting surfaces of the second section 222 and the vertical section are parallel to each other.
[0041] In this embodiment, the fixed cover 1, the movable cover 2, and the rotating component 3 are all made of stainless steel, which greatly extends the service life of the movable cover structure and reduces the maintenance time for production personnel. Furthermore, the bent portions of both the fixed cover 1 and the movable cover 2 are processed using cold bending. Cold bending involves placing the room-temperature steel plate into a bending machine for bending, resulting in better cost control. Cold bending does not require heating and does not produce toxic gases, thus meeting environmental protection requirements. Compared to hot bending, cold-bent steel retains its physical properties to the greatest extent because it is not heated at high temperatures. This saves processing costs, simplifies manufacturing, increases production efficiency, and meets market demands.
[0042] like Figure 2 As shown, a second rounded corner transition structure is provided at the corner of the second bend 22, and a third rounded corner transition structure is also provided at the junction of the second bend 22 and the movable cover 2. The rounded corner transition can not only reduce stress concentration and improve structural strength, but also reduce the damage to other workpieces caused by excessively sharp corners.
[0043] The working principle of this embodiment is as follows: the fixed cover 1 is used as the installation structure between the fixed cover and the coating tank. The fixed cover 1 is fixed to the panel of the device to be applied. The movable cover 2 blocks the opening of the device to be covered to achieve protection. The rotating part 3 realizes the opening and closing of the movable cover 2.
[0044] The beneficial effects of this embodiment are as follows: the first bending portion 12 blocks the rotating member 3 on one side of the opening to be covered, and the second bending portion 22, through its bending shape, passes over the first bending portion 12 and connects to the rotating member 3, thus enabling the movable cover 2 to perform the closing function. In this way, even if wear debris is generated when the rotating member 3 performs the function of repeated rotation and opening and closing, the wear debris will not fall into the opening, but will be isolated by the first bending portion 12 on the side of the fixed cover 1. Furthermore, the first bending portion 12 and the second bending portion 22 abut against each other, closing the gap between the fixed cover 1 and the movable cover 2. The passage prevents foreign objects from entering the opening through the gap between the two parts. Unlike the traditional plate-type flat opening and closing rotating structure, the second bending part 22 is used to shift the rotating connection position of the rotating part 3 to a place away from the opening. At the same time, the first bending part 12 closes the passage that may allow debris and foreign objects to enter. In this way, after the cover structure is closed, the debris generated by the wear of the rotating part 3 or the dust attached to the air will be blocked on one side of the first bending part 12 and cannot enter the opening. It has a good effect of preventing foreign objects from falling in. The structure is simple and effective.
[0045] Example 2
[0046] This embodiment is similar in structure to Embodiment 1, except that:
[0047] like Figure 1 As shown, the cover 2 includes a folded edge 23 at its end, which is located at the end of the cover 2 facing away from the second bend 22. The folded edge 23 forms a brim-like effect at the end of the cover 2, which can provide a protective covering around the edge of the opening to be covered, further reducing the risk of foreign objects entering from the end of the cover 2.
[0048] The other structures and principles of this embodiment are the same as those of Embodiment 1.
[0049] Example 3
[0050] This embodiment is similar in structure to Embodiment 2, except that:
[0051] In this embodiment, the rotating component 3 is a hinge, and the opening and closing angle range of the hinge is 0° to 120°.
[0052] Specifically, in this embodiment, a stainless steel limiting hinge with an opening angle of 120°, which is available on the market, is used for connection.
[0053] The other structures and principles of this embodiment are the same as those of Embodiment 2.
[0054] Example 4
[0055] This embodiment is similar in structure to Embodiment 3, except that:
[0056] like Figure 1As shown, the movable cover structure of this embodiment also includes an elastic pad 4 for buffering the impact force when closing. The elastic pad 4 is disposed on the inner side wall of the movable cover 2. The elastic pad 4 is located at the impact position when the movable cover 2 closes. When the movable cover 2 is closed, the movable cover 2 will abut against the edge of the opening to be covered. The elastic pad 4 avoids hard contact between the movable cover 2 and the opening to be covered, and can reduce wear of opening and closing the movable cover 2 while ensuring a certain sealing performance.
[0057] Specifically, the elastic pad 4 in this embodiment is a fluororubber pad.
[0058] The other structures and principles of this embodiment are the same as those of Embodiment 3.
[0059] Example 5
[0060] This embodiment is similar in structure to Embodiment 4, except that:
[0061] like Figure 3 and Figure 4 As shown, the movable cover structure in this embodiment also includes a handle 5, which is disposed on the outer surface of the movable cover 2. The handle 5 allows for easier opening of the movable cover 2, improving ease of use.
[0062] The other structures and principles of this embodiment are the same as those of Embodiment 4.
[0063] Example 6
[0064] like Figure 3 and Figure 4 As shown, this embodiment also provides a coating tank, including a tank body 100 and a retractable lid structure as described in embodiment 5 above. The coating tank body 100 of this embodiment has two symmetrical openings on its top surface. The coating tank body 100 of this embodiment is provided with two retractable lid structures, which are respectively provided on the openings on the top surface of the tank body 100.
[0065] In this embodiment, the fixing surface can be the top surface of the tank 100, and the fixing cover 1 is an integrally formed L-shaped workpiece. One end of the fixing cover 1 is fixed parallel to the top surface of the tank 100.
[0066] In this embodiment, the thickness of the movable cover 2 is 4mm to 6mm. Since this device is used in environments with normal pressure, a thickness of 4mm to 6mm ensures that the structure has sufficient strength and rigidity.
[0067] In this embodiment, the internal width of the inverted U-shaped second bend 22 is 20-30mm.
[0068] The end of the first bend 12 abuts against the central axis of the second bend 22, which can provide effective balance support. If the end of the first bend 12 does not abut against the center position, it will affect the flipping angle.
[0069] like Figure 2 As shown, the minimum distance 'a' between the junction of the second bend 22 and the movable cover 2 and the tank body 100 is 2mm to 4mm.
[0070] When the retractable cap structure is installed on the coating tank, the junction of the second bend 22 and the retractable cap 2 must not come into contact with the mounting side of the tank body 100. If it does, wear and tear will inevitably occur, and the resulting debris will fall into the opening. However, the distance between the junction of the second bend 22 and the retractable cap 2 and the tank body 100 cannot be too large, otherwise it will increase the risk of foreign objects entering the tank body 100. Therefore, in order to ensure the purpose of preventing foreign objects from entering and to avoid contact interference, the minimum distance between the two is set to 2mm to 4mm.
[0071] In this embodiment, the folded edge 23 at the end of the movable cover 2 covers the opening of the can body 100 after the cover is closed.
[0072] In this embodiment, the elastic pad 4 is disposed on the inner wall of the movable cover 2 and is located between the outer wall of the opening and the inner wall of the movable cover 2. When the movable cover structure is closed, the inner wall of the movable cover 2 and the outer wall of the opening abut against each other.
[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A hinged cover structure, comprising a fixed cover (1) and a movable cover (2), wherein the fixed cover (1) and the movable cover (2) are connected by a rotating member (3), characterized in that, It also includes a blocking component disposed between the fixed cover (1) and the movable cover (2) for preventing foreign objects from passing through the gap between them.
2. The retractable cover structure according to claim 1, characterized in that, The blocking assembly includes a first bending portion (12) and a second bending portion (22). The first bending portion (12) is located at the end of the fixed cover (1), and the second bending portion (22) is located at the end of the movable cover (2). The rotating member (3) is fixed on the fixed cover (1) and located on one side of the first bending portion (12). The second bending portion (22) is rotatably connected to the rotating member (3). The movable cover (2) is located on the other side of the first bending portion (12). The first bending portion (12) and the second bending portion (22) abut against each other.
3. The retractable cover structure according to claim 2, characterized in that, The end of the first bend (12) abuts against the inner wall of the second bend (22).
4. The retractable cover structure according to claim 2, characterized in that, The fixed cover (1) and the first bent portion (12) are perpendicular to each other, and a first rounded corner transition structure is provided at the junction of the fixed cover (1) and the first bent portion (12).
5. A retractable cover structure according to claim 2, characterized in that, The second bend (22) is inverted U-shaped, and a second rounded corner transition structure is provided at the corner of the second bend (22), and a third rounded corner transition structure is provided at the junction of the second bend (22) and the movable cover (2).
6. The retractable cover structure according to claim 2, characterized in that, The movable cover (2) also includes a folded edge (23) at the end of the movable cover (2), the folded edge (23) being located at one end of the movable cover (2) away from the second bent part (22).
7. The retractable cover structure according to claim 1, characterized in that, The rotating component (3) is a hinge, and the opening and closing angle range of the hinge is 0° to 120°.
8. The retractable cover structure according to claim 1, characterized in that, It also includes an elastic pad (4) for cushioning the impact force when the cover is closed, the elastic pad (4) being disposed on the inner side wall of the movable cover (2).
9. A coating tank, comprising a tank body (100), characterized in that, It also includes a retractable lid structure as described in any one of claims 1-8, the retractable lid structure being disposed on the top surface of the tank body (100).
10. A coating tank according to claim 9, characterized in that, The minimum distance a from the junction of the second bend (22) and the movable cover (2) to the tank body (100) is 2mm to 4mm.