A hand crank for a compact cabinet

Abstract

The utility model relates to the technical field of dense cabinet, disclose a hand crank of dense cabinet, including dense cabinet body and rotation structure, the inside of dense cabinet body is equipped with rotation structure, the rotation structure includes storage tank, wheel disc and first fixed groove, the outside of dense cabinet body is equipped with storage tank, the inside of storage tank is equipped with wheel disc, the inside of wheel disc is equipped with a plurality of first fixed groove, the inside of first fixed groove is equipped with fixed column, the both sides of fixed column outer wall are equipped with sliding block, the inside of sliding block is located in the sliding slot, the inside of sliding slot is located in wheel disc, the right side of fixed column is connected with connecting plate through first fixed groove, the utility model avoids the equipment unexpected movement caused by the mistake of touching, promotes the use security, when not using, the rotation structure is completely received in storage tank, is suitable for narrow passageway scene, also saves the space.

Description

Technical Field

[0001] This utility model relates to the field of mobile shelving technology, specifically a hand crank for mobile shelving. Background Technology

[0002] Mobile shelving is a new type of equipment used by government agencies, public institutions, archives, and other organizations to store books, archives, and other documents. Compared with traditional shelving, it has the advantages of large storage capacity and space saving.

[0003] However, existing traditional mobile shelving unit hand cranks are mostly exposed and fixed structures, which have the following problems: First, the protruding structure poses a safety hazard. The handle protrudes from the side of the cabinet for extended periods, making it prone to collisions with pedestrians or equipment in narrow passages, causing accidental injury or equipment damage. Furthermore, it is easy to accidentally turn the handle when not in use, leading to unintended movement of the equipment and posing a safety risk. Second, the user experience is poor; the exposed handle is prone to slipping due to insufficient anti-slip properties, affecting the smoothness of operation. To address these issues, we propose a new type of mobile shelving unit hand crank. Utility Model Content

[0004] The purpose of this invention is to provide a hand crank for mobile shelving units to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hand crank for a mobile shelving unit, comprising a mobile shelving unit body and a rotating structure, wherein the rotating structure is provided on the inner side of the mobile shelving unit body;

[0006] The rotating structure includes a storage slot, a wheel, and a first fixing slot. The storage slot is located on the outer side of the mobile shelving body, and the wheel is located on the inner side of the storage slot. Multiple first fixing slots are located on the inner side of the wheel, and a fixing post is located on the inner side of each first fixing slot. Sliding blocks are installed on both sides of the outer wall of the fixing post, and the sliding blocks are located on the inner side of a sliding groove. The sliding groove is located on the inner side of the wheel. The right side of the fixing post passes through the first fixing slot and connects to a connecting plate. A slot is located on the inner side of the connecting plate, and a second fixing slot is located on the right side of the connecting plate. The second fixing slot is located on the inner side of the mobile shelving body, and a locking block is installed on the right side inside the second fixing slot. The left side of the fixing post passes through the first fixing slot and connects to the connecting post. A fixing cylinder is installed on the outer wall of the connecting post.

[0007] Preferably, the rotating structure further includes a rotating rod and a gear. The rotating rod is installed in the middle of the right wall of the storage slot, and the gear is installed on the outer wall of the rotating rod. The right side of the rotating rod is connected by a rotating shaft. The gear is located inside the processing slot, which is located inside the main body of the mobile shelving unit.

[0008] Preferably, the mobile shelving unit and the storage compartment are integrated, and the storage compartment and the wheel are correspondingly arranged.

[0009] Preferably, the storage tanks are integrated with the first fixing tank and the sliding tank, and the first fixing tank and the fixing column are correspondingly arranged.

[0010] Preferably, the fixed column and the sliding block are fixedly connected, and the sliding block and the sliding groove are slidably connected.

[0011] Preferably, the fixed column and the connecting column are fixedly connected, and the connecting column is T-shaped.

[0012] Preferably, the connecting column and the fixing cylinder are correspondingly arranged, and the outer wall of the fixing cylinder is an anti-slip surface.

[0013] Preferably, the diameter of the fixing cylinder is equal to the diameter of the fixing column, and the connecting plate and the slot are integrated.

[0014] Preferably, the card slot and the card block are connected by a snap-fit ​​connection, and the card block is fixedly connected to the mobile shelving body.

[0015] Preferably, the connecting plate and the second fixing groove are correspondingly arranged, and the rotating rod and the rotating shaft are rotatably connected.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] This utility model employs a unique telescopic locking structure. Through the cooperation of the connecting plate and the locking block, when the hand crank is pushed in, the locking slot and the locking block precisely engage, locking the handle in the retracted state. Only when the user actively pulls out the hand crank will the locking relationship be released, allowing the handle to rotate. This design effectively prevents accidental movement of the device due to accidental contact, thus greatly improving user safety.

[0018] This utility unit boasts excellent storage functionality. When not in use, the rotating structure is completely retracted into the storage compartment, its outer surface forming a seamless and flush interface with the main body of the mobile shelving unit, eliminating any protruding structural elements. This not only avoids the risk of bumps and knocks, making it particularly suitable for narrow passageways, but also saves space and improves the utilization of the passageway.

[0019] This practical appliance operates smoothly and offers a comfortable grip. The sliding connection between the fixed column and the sliding block ensures smooth, uninterrupted, and precise axial pulling and pushing back of the handle, reducing operational resistance. Furthermore, the outer wall of the fixed cylinder is designed with a non-slip surface, which, combined with the T-shaped connecting column for grip stability, effectively prevents slippage during rotation, ensuring smooth operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0022] Figure 2 This is a front view structural diagram of the present invention;

[0023] Figure 3 This is a partial side cross-sectional view of the rotating structure of this utility model;

[0024] Figure 4 This is a partial side cross-sectional view of the rotating structure used in this utility model.

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Mobile shelving unit body; 2. Rotating structure; 201. Storage slot; 202. Wheel; 203. First fixed slot; 204. Fixed column; 205. Sliding block; 206. Slide groove; 207. Connecting plate; 208. Slot; 209. Second fixed slot; 210. Locking block; 211. Connecting column; 212. Fixed cylinder; 213. Rotating rod; 214. Gear; 215. Rotating shaft; 216. Processing slot. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please see Figure 1-5 This utility model provides a technical solution for the hand crank of a mobile shelving unit: a hand crank of a mobile shelving unit includes a mobile shelving unit body 1 and a rotating structure 2, and the rotating structure 2 is provided on the inner side of the mobile shelving unit body 1.

[0031] The rotating structure 2 includes a storage slot 201, a wheel 202, and a first fixing slot 203. The storage slot 201 is located on the outer side of the mobile shelving unit 1, and the wheel 202 is located on the inner side of the storage slot 201. Multiple first fixing slots 203 are located on the inner side of the wheel 202, and fixing posts 204 are located on the inner side of each first fixing slot 203. Combined with the multi-point support design of the wheel 202, power transmission is direct during rotation, reducing idle rotation of the gears 214 and improving the smoothness of the mobile shelving's movement. Sliding blocks 205 are installed on both sides of the outer wall of the fixing posts 204. The inner side of the groove 206 is located inside the wheel 202. The right side of the fixing column 204 passes through the first fixing groove 203 and is connected to the connecting plate 207. The inner side of the connecting plate 207 is provided with a slot 208. The right side of the connecting plate 207 is provided with a second fixing groove 209. The second fixing groove 209 is located inside the mobile shelving body 1. A locking block 210 is installed on the right side inside the second fixing groove 209. The left side of the fixing column 204 passes through the first fixing groove 203 and is connected to the connecting column 211. A fixing cylinder 212 is installed on the outer wall of the connecting column 211.

[0032] The rotating structure 2 also includes a rotating rod 213 and a gear 214. The rotating rod 213 is installed in the middle of the right wall of the storage slot 201, and the gear 214 is installed on the outer wall of the rotating rod 213. The right side of the rotating rod 213 is connected by a rotating shaft 215. The gear 214 is located inside the processing slot 216, which is located inside the mobile shelving body 1.

[0033] The mobile shelving unit 1 and the storage slot 201 are integrated, and the storage slot 201 and the wheel 202 are correspondingly arranged.

[0034] The storage tank 201 is integrated with the first fixed tank 203 and the slide 206, and the first fixed tank 203 is correspondingly set with the fixed column 204.

[0035] The fixed column 204 and the sliding block 205 are fixedly connected, while the sliding block 205 and the slide groove 206 are slidably connected, ensuring smooth axial sliding without jamming or positioning, and reducing operating resistance.

[0036] The fixed column 204 and the connecting column 211 are fixedly connected, and the connecting column 211 is T-shaped.

[0037] The connecting column 211 and the fixed cylinder 212 are correspondingly set. The outer wall of the fixed cylinder 212 is a non-slip surface. Combined with the grip stability of the T-shaped connecting column 211, it can effectively prevent slippage during rotation.

[0038] The diameter of the fixed cylinder 212 is equal to the diameter of the fixed column 204, and the connecting plate 207 and the slot 208 are integrated.

[0039] The card slot 208 and the card block 210 are connected by a snap-fit ​​connection, and the card block 210 is fixedly connected to the mobile shelving body 1.

[0040] The connecting plate 207 and the second fixing groove 209 are correspondingly arranged, and the rotating rod 213 and the rotating shaft 215 are rotatably connected.

[0041] Working principle:

[0042] The hand crank of this utility model is in a retractable state when not in use, and its operation mainly consists of two steps: "pulling out" and "rotating".

[0043] First, when the hand crank is needed, the user holds the fixed cylinder 212 and pulls it to the left. The fixed cylinder 212 and the connecting post 211 cause the fixed post 204 to slide to the left in the first fixed groove 203, while simultaneously driving the sliding block 205 to slide along the sliding groove 206. Due to the movement of the fixed post 204, the connecting plate 207 on its right side also moves to the left in the second fixed groove 209, causing the slot 208 on the connecting plate 207 to separate from the locking block 210. At this time, the locking state of the hand crank is released.

[0044] Once the hand crank is pulled out to the working position, the user holds the fixed cylinder 212 with a non-slip surface and rotates the wheel 202. When the wheel 202 rotates, it drives the rotating rod 213 to rotate around the rotating shaft 215 through its connection with the rotating rod 213, which in turn drives the gear 214 on the outer wall of the rotating rod 213 to rotate, ultimately realizing the movement of the mobile shelving unit 1.

[0045] After the operation is completed, the user pushes the hand crank back into the storage slot 201. During the pushing process, the connecting plate 207 will engage with the locking block 210 again, locking the hand crank in the storage state, forming a flat whole with the mobile shelving body 1, avoiding unnecessary protrusion and saving space.

[0046] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hand crank for a mobile shelving unit, comprising a mobile shelving unit body (1) and a rotating structure (2), characterized in that: The inner side of the mobile shelving body (1) is provided with a rotating structure (2). The rotating structure (2) includes a storage slot (201), a wheel (202), and a first fixing slot (203). The storage slot (201) is provided on the outer side of the mobile shelving body (1). The wheel (202) is provided on the inner side of the storage slot (201). Multiple first fixing slots (203) are provided on the inner side of the wheel (202). A fixing post (204) is provided on the inner side of the first fixing slot (203). Sliding blocks (205) are installed on both sides of the outer wall of the fixing post (204). The sliding blocks (205) are located on the inner side of the sliding groove (206). The sliding groove (206) is located on the wheel (202). On the inner side, the right side of the fixing column (204) passes through the first fixing groove (203) and is connected to the connecting plate (207). The inner side of the connecting plate (207) is provided with a slot (208). The right side of the connecting plate (207) is provided with a second fixing groove (209). The second fixing groove (209) is located on the inner side of the mobile cabinet body (1). A locking block (210) is installed on the right side inside the second fixing groove (209). The left side of the fixing column (204) passes through the first fixing groove (203) and is connected to the connecting column (211). A fixing cylinder (212) is installed on the outer wall of the connecting column (211).

2. The hand crank handle of a mobile shelving unit according to claim 1, characterized in that: The rotating structure (2) also includes a rotating rod (213) and a gear (214). The rotating rod (213) is installed in the middle of the right wall of the storage slot (201). The gear (214) is installed on the outer wall of the rotating rod (213). The right side of the rotating rod (213) is connected by a rotating shaft (215). The gear (214) is located inside the processing slot (216). The processing slot (216) is located inside the body of the mobile shelving unit (1).

3. The hand crank handle of a mobile shelving unit according to claim 2, characterized in that: The mobile shelving unit (1) and the storage tank (201) are integrated, and the storage tank (201) and the wheel (202) are correspondingly arranged.

4. The hand crank handle of a mobile shelving unit according to claim 3, characterized in that: The storage tank (201) is integrated with the first fixed tank (203) and the slide (206), and the first fixed tank (203) is correspondingly set with the fixed column (204).

5. The hand crank handle of a mobile shelving unit according to claim 4, characterized in that: The fixed column (204) and the sliding block (205) are fixedly connected, and the sliding block (205) and the sliding groove (206) are slidably connected.

6. The hand crank handle of a mobile shelving unit according to claim 5, characterized in that: The fixed column (204) and the connecting column (211) are fixedly connected, and the connecting column (211) is T-shaped.

7. The hand crank handle of a mobile shelving unit according to claim 6, characterized in that: The connecting column (211) and the fixing cylinder (212) are correspondingly arranged, and the outer wall of the fixing cylinder (212) is an anti-slip surface.

8. The hand crank handle of a mobile shelving unit according to claim 7, characterized in that: The diameter of the fixed cylinder (212) is equal to the diameter of the fixed column (204), and the connecting plate (207) and the slot (208) are integrated.

9. The hand crank handle of a mobile shelving unit according to claim 8, characterized in that: The card slot (208) and the card block (210) are connected by a snap-fit ​​connection, and the card block (210) is fixedly connected to the mobile shelving body (1).

10. The hand crank handle of a mobile shelving unit according to claim 9, characterized in that: The connecting plate (207) and the second fixing groove (209) are correspondingly arranged, and the rotating rod (213) and the rotating shaft (215) are rotatably connected.

Images