Hand module

Abstract

The utility model discloses a hand module relates to hand module technical field, including base, receiving groove, spacing structure and adjusting structure, the top end of base is symmetrically fixed connection with the slide bar that is used for providing support, the outer wall of two slide bar is in sliding connection with the pedestal, the center of the top end of the base is rotationally connected with a first threaded rod used for driving the pedestal, storage grooves are symmetrically formed in the two sides of the base, extension rods used for fixing the base are rotationally connected into the storage grooves, and limiting blocks are arranged in the extension rods. Through the arrangement of the storage groove, the extension rod, the limiting structure and the adjusting structure, the workbench does not need to be punched in advance, only the extension rod needs to be pushed aside according to the supporting face of the workbench, the angle of the extension rod is adjusted, the adjusting structure is used for driving the limiting block to be fixed to the edge of the workbench, the installation process is greatly simplified, and the installation time and the labor cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of hand-cranked module technology, specifically a hand-cranked module. Background Technology

[0002] With hand-cranked modules widely used in machinery manufacturing, experimental equipment, and small-scale industrial production, their stability and applicability play a crucial role in the normal operation and effectiveness of the equipment. Currently, most common hand-cranked modules on the market are fixed to a workbench using pre-drilled holes and bolts. This traditional installation method relies on pre-set mounting holes on the workbench surface, where bolts are passed through and tightened to achieve a stable connection between the hand-cranked module and the workbench.

[0003] However, in practical use, this fixing method has revealed significant drawbacks. For example, in some laboratory settings, the design of workbenches is often diverse and unique, and many laboratory workbenches do not have mounting holes that match the pre-drilled holes for the hand-cranked module. When it is necessary to install the hand-cranked module on such workbenches, the traditional pre-drilled hole bolt fixing method cannot be implemented. This greatly limits the scope of use of the hand-cranked module, making it unable to meet diverse application needs, affecting the flexibility and convenience of equipment installation, and also hindering the progress of related work.

[0004] Therefore, we propose a hand-cranked module. Utility Model Content

[0005] The purpose of this invention is to provide a hand-cranked module to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hand-cranked module, comprising:

[0007] The base has symmetrically fixed sliding rods at its top for providing support, and a platform is slidably connected to the outer walls of the two sliding rods. A first threaded rod for driving the platform is rotatably connected at the center of the top of the base.

[0008] The base has symmetrical storage slots on both sides. An extension rod for fixing the base is rotatably connected inside the storage slot. A limiting block is set inside the extension rod.

[0009] A limiting structure is provided at the connection between the extension rod and the storage slot to limit the extension rod;

[0010] The adjustment structure includes an internal adjustment mechanism for adjusting the position of the limiting block.

[0011] Preferably, the limiting structure includes: a first groove, a spring, and a pressing plate. The inner wall of the storage groove has a first groove, the center of the first groove and the axis of the extension rod at the connection of the storage groove coincide, the spring is fixedly connected inside the first groove, the pressing plate is axially slidably connected to the inner wall of the first groove, one end of the pressing plate is fixedly connected to the spring, the other end of the pressing plate is provided with friction texture, one side of the extension rod at the connection of the storage groove is frosted, and the friction texture of the pressing plate is in contact with the frosted end of the extension rod.

[0012] Preferably, the adjustment structure includes: a second threaded rod, a threaded slider, and a connecting groove. The second threaded rod is rotatably connected inside the extension rod, and the threaded slider is slidably connected inside the extension rod. The bottom end of the threaded slider is symmetrically provided with connecting grooves. One end of the limiting block is rotatably connected to the connecting groove, and a torsion spring is provided at the connection between the limiting block and the connecting groove.

[0013] Preferably, one end of the first threaded rod extends out of the base and is fixedly connected to a crank handle.

[0014] Preferably, one end of the second threaded rod extending from the extension rod has an internal hexagonal groove.

[0015] Preferably, the length of the limiting block is greater than the length of the threaded slider.

[0016] Preferably, when the two extension rods are located inside the receiving slot, there is a gap between the ends of the two extension rods that are close to each other.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In terms of ease of installation, the traditional method of fixing with pre-drilled holes and bolts has been abandoned. By setting up a storage slot, extension rod, limiting structure and adjustment structure, there is no need to pre-drill holes on the workbench. You only need to open the extension rod according to the support surface of the workbench, adjust its angle, and then use the adjustment structure to drive the limiting block to fix it to the edge of the workbench. This greatly simplifies the installation process and saves installation time and labor costs.

[0019] In terms of expanding applicable scenarios, it is no longer limited by whether the workbench has corresponding mounting holes. Whether it is a specially designed workbench in the laboratory or other workbench surfaces without pre-drilled mounting holes, it can be installed quickly, greatly expanding the scope of use of the hand-cranked module and meeting diverse application needs.

[0020] From the perspective of stability, the spring and extrusion plate in the limiting structure work together to ensure that the friction texture of the extrusion plate tightly presses against the frosted end of the extension rod when the extension rod rotates, effectively preventing the extension rod from rotating without external force and ensuring stability after installation. At the same time, the fixing method between the limiting block and the worktable further enhances the connection strength between the hand-cranked module and the worktable, ensuring that the hand-cranked module will not loosen or shift during use, thus improving the reliability and safety of the equipment operation. Attached Figure Description

[0021] Figure 1 This is one of the schematic diagrams of the overall structure of this utility model;

[0022] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

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

[0024] Figure 4 This is a schematic diagram of the extension rod structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the threaded slider structure of this utility model;

[0026] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0027] In the diagram: 1. Base; 2. Slide rod; 3. Platform; 4. First threaded rod; 5. Storage groove; 6. Extension rod; 7. Limiting block; 8. Limiting structure; 9. Adjustment structure; 10. Handle; 11. Hexagonal recess; 21. First recess; 22. Spring; 23. Extrusion plate; 31. Second threaded rod; 32. Threaded slider; 33. Connecting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 As shown, a hand-cranked module includes:

[0030] The base 1 has a sliding rod 2 symmetrically fixedly connected to its top end for providing support. The outer walls of the two sliding rods 2 are slidably connected to a platform 3. The center of the top end of the base 1 is rotatably connected to a first threaded rod 4 for driving the platform 3. One end of the first threaded rod 4 extends out of the base 1 and is fixedly connected to a crank handle 10.

[0031] Storage slots 5 are symmetrically provided on both sides of the base 1. An extension rod 6 for fixing the base 1 is rotatably connected inside the storage slot 5. A limiting block 7 is provided inside the extension rod 6. When the two extension rods 6 are inside the storage slot 5, there is a gap between the two extension rods 6 at the ends that are close to each other.

[0032] The limiting structure 8 is provided at the connection between the extension rod 6 and the storage groove 5 to limit the extension rod 6;

[0033] The adjustment structure 9 is installed inside the extension rod 6 to adjust the position of the limiting block 7.

[0034] Before using this hand-cranked module, installation preparations must be made according to the specific conditions of the workbench support surface. Since the extension rods 6 are rotatably connected inside the symmetrically arranged storage slots 5 on both sides of the base 1, and a limiting structure 8 is provided at the connection between the extension rods 6 and the storage slots 5, the extension rods 6 are initially stored within the storage slots 5. At this time, the spring 22 in the first groove 21 on the inner wall of the storage slot 5 is in its natural state, and the end of the pressing plate 23 with friction texture tightly fits the frosted end of the extension rod 6 under the pushing force of the spring 22. When it is necessary to unfold the extension rods 6, the two sets of extension rods 6 are manually pried apart through the gap between their approaching ends, and the extension rods 6 rotate around the connection with the storage slots 5.

[0035] The limiting structure 8 includes: a first groove 21, a spring 22, and a pressing plate 23. The inner wall of the receiving groove 5 has a first groove 21. The center of the first groove 21 and the axis of the extension rod 6 at the connection with the receiving groove 5 coincide. The spring 22 is fixedly connected inside the first groove 21. The pressing plate 23 is axially slidably connected to the inner wall of the first groove 21. One end of the pressing plate 23 is fixedly connected to the spring 22. The other end of the pressing plate 23 is provided with friction texture. One side of the extension rod 6 at the connection with the receiving groove 5 has a frosted design. The friction texture of the pressing plate 23 is in contact with the frosted design end of the extension rod 6.

[0036] During rotation, the abrasive end of the extension rod 6 applies a rotational force to the extrusion plate 23, forcing the extrusion plate 23 to slide axially within the first groove 21 and compress the spring 22. The spring 22 maintains a pushing force on the extrusion plate 23, ensuring that the friction texture of the extrusion plate 23 continuously presses the abrasive end of the extension rod 6. This process effectively prevents the extension rod 6 from rotating when it is not subjected to external force, preventing it from accidentally rotating within the storage slot 5 due to handling or other reasons, which would affect its subsequent use.

[0037] The adjustment structure 9 includes: a second threaded rod 31, a threaded slider 32, and a connecting groove 33. The second threaded rod 31 is rotatably connected inside the extension rod 6, and the threaded slider 32 is slidably connected inside the extension rod 6. The bottom end of the threaded slider 32 is symmetrically provided with connecting grooves 33. One end of the limiting block 7 is rotatably connected to the connecting groove 33. A torsion spring is provided at the connection between the limiting block 7 and the connecting groove 33. One end of the second threaded rod 31 extends out of the extension rod 6 and is provided with an internal hexagonal groove 11. The length of the limiting block 7 is greater than the length of the threaded slider 32.

[0038] After the extension rod 6 is rotated to a suitable angle, such as 90 degrees or 180 degrees, the fixing operation begins. The limiting block 7 inside the extension rod 6 is rotatably connected to the connecting groove 33 on the threaded slider 32, and initially remains parallel to the threaded slider 32 under the action of the torsion spring 22. The user pulls the limiting block 7, causing it to overcome the elastic force of the torsion spring 22 and rotate 90 degrees along the connection point of the connecting groove 33. Since the length of the limiting block 7 is greater than the length of the threaded slider 32, sufficient operating space is reserved for easy manipulation. Subsequently, a hex wrench is inserted into the internal hexagonal groove 11 at one end of the second threaded rod 31, and rotating the hex wrench drives the second threaded rod 31 to rotate. The second threaded rod 31, through its threaded engagement with the threaded slider 32, drives the threaded slider 32 to slide towards the edge of the workbench support surface, thereby making the limiting block 7 tightly contact the edge of the workbench and fixing it, thus securely connecting the two sets of extension rods 6 to the workbench.

[0039] Working principle:

[0040] Before using the hand-cranked module, first adjust the positions of the two sets of extension rods 6 according to the support surface of the workbench. By opening the gap between the two ends of the extension rods 6, the two sets of extension rods 6 will rotate. Due to the rotation of the extension rods 6, the frosted ends of the extension rods 6 will also rotate. This rotation of the frosted ends causes the extrusion plate 23 to receive a rotational force. However, the extrusion plate 23 can only slide axially. Therefore, the extrusion plate 23 compresses the spring 22, but the spring 22 always pushes the extrusion plate 23, causing the friction texture of the extrusion plate 23 to always press against the frosted ends of the extension rods 6. This prevents the extension rods 6 from rotating without external force, especially when the extension rods 6 are in the storage slot 5. This prevents the extension rods 6 from rotating during handling, thus affecting the handling process. When the extension rods 6 rotate 90 degrees... After turning 180 degrees, the limiting block 7 is then engaged, causing it to rotate 90 degrees along the connection of the connecting groove 33. During this process, the limiting block 7 always overcomes the spring force of the torsion spring. Since the length of the limiting block 7 is greater than the length of the threaded slider 32, there is a certain distance between the limiting block 7 and the threaded slider 32, making it easy for people to move the limiting block 7. After moving it 90 degrees, the hex wrench is inserted into the internal hexagonal groove 11, and then the hex wrench is rotated to make the second threaded rod 31 rotate, thereby driving the threaded slider 32 closer to the edge of the workbench support surface. The limiting blocks 7 on the two sets of extension rods 6 are then fixed to the workbench through the limiting blocks 7. At this time, the hand-cranked module can be used, and the platform 3 can be moved along the length direction of the base 1 by rotating the crank handle 10.

[0041] 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 process, method, article, or apparatus.

[0042] Although embodiments of the present invention 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 invention, the scope of which is defined by the appended claims and their equivalents.

[0043] Before using this hand-cranked module, installation preparations must be made according to the specific conditions of the workbench support surface. Since the extension rods 6 are rotatably connected inside the symmetrically arranged storage slots 5 on both sides of the base 1, and a limiting structure 8 is provided at the connection point between the extension rods 6 and the storage slots 5, the extension rods 6 are initially stored within the storage slots 5. At this time, the spring 22 in the first groove 21 on the inner wall of the storage slot 5 is in its natural state, and the end of the pressing plate 23 with friction texture tightly adheres to the frosted end of the extension rod 6 under the pushing force of the spring 22. When it is necessary to unfold the extension rods 6, the two sets of extension rods 6 are manually pried apart through the gap between their approaching ends, and the extension rods 6 rotate around the connection point with the storage slots 5. During rotation, the abrasive end of the extension rod 6 applies a rotational force to the extrusion plate 23, forcing the extrusion plate 23 to slide axially within the first groove 21 and compress the spring 22. The spring 22 maintains a pushing force on the extrusion plate 23, ensuring that the friction texture of the extrusion plate 23 continuously presses the abrasive end of the extension rod 6. This process effectively prevents the extension rod 6 from rotating when it is not subjected to external force, preventing it from accidentally rotating within the storage slot 5 due to handling or other reasons, which would affect its subsequent use.

[0044] After the extension rod 6 is rotated to a suitable angle (such as 90 degrees or 180 degrees), the fixing operation begins. The limiting block 7 inside the extension rod 6 is rotatably connected to the connecting groove 33 on the threaded slider 32, and initially remains parallel to the threaded slider 32 under the action of the torsion spring 22. The user pulls the limiting block 7, causing it to overcome the elastic force of the torsion spring 22 and rotate 90 degrees along the connection point of the connecting groove 33. Since the length of the limiting block 7 is greater than the length of the threaded slider 32, sufficient operating space is reserved for easy manipulation. Subsequently, a hex wrench is inserted into the internal hexagonal groove 11 at one end of the second threaded rod 31, and rotating the hex wrench drives the second threaded rod 31 to rotate. The second threaded rod 31, through the threaded engagement with the threaded slider 32, drives the threaded slider 32 to slide towards the edge of the worktable support surface, thereby making the limiting block 7 tightly contact the edge of the worktable and fixing it, thus firmly connecting the two sets of extension rods 6 to the worktable.

[0045] After installation and fixing, the hand-cranked module can be used. The user rotates the handle 10 at one end of the first threaded rod 4, and the first threaded rod 4 rotates and forms a threaded transmission with the base 3. Since the two sliding rods 2 provide sliding guide support for the base 3, the base 3 moves smoothly along the length of the base 1, realizing the function of the hand-cranked module and meeting the usage needs in different work scenarios.

Claims

1. A hand-cranked module, characterized in that, include: The base (1) has a sliding rod (2) symmetrically fixedly connected to the top of the base (1) for providing support. The outer walls of the two sliding rods (2) are slidably connected to a platform (3). The center of the top of the base (1) is rotatably connected to a first threaded rod (4) for driving the platform (3). Storage slots (5) are symmetrically provided on both sides of the base (1). An extension rod (6) for fixing the base (1) is rotatably connected inside the storage slots (5). A limiting block (7) is provided inside the extension rod (6). The limiting structure (8) is provided at the connection between the extension rod (6) and the storage groove (5) to limit the extension rod (6); The adjustment structure (9) is installed inside the extension rod (6) for adjusting the position of the limiting block (7).

2. The hand-cranked module according to claim 1, characterized in that: The limiting structure (8) includes: a first groove (21), a spring (22) and a pressing plate (23). The inner wall of the storage groove (5) is provided with a first groove (21). The center of the first groove (21) and the axis of the extension rod (6) at the connection with the storage groove (5) coincide. The spring (22) is fixedly connected inside the first groove (21). The pressing plate (23) is axially slidably connected to the inner wall of the first groove (21). One end of the pressing plate (23) is fixedly connected to the spring (22). The other end of the pressing plate (23) is provided with friction texture. One side of the connection between the extension rod (6) and the storage groove (5) is frosted. The friction texture of the pressing plate (23) is in contact with the frosted end of the extension rod (6).

3. A hand-cranked module according to claim 1, characterized in that: The adjustment structure (9) includes: a second threaded rod (31), a threaded slider (32), and a connecting groove (33). The second threaded rod (31) is rotatably connected inside the extension rod (6), and the threaded slider (32) is slidably connected inside the extension rod (6). The connecting groove (33) is symmetrically opened at the bottom end of the threaded slider (32). One end of the limiting block (7) is rotatably connected to the connecting groove (33), and a torsion spring is provided at the connection between the limiting block (7) and the connecting groove (33).

4. A hand-cranked module according to claim 1, characterized in that: One end of the first threaded rod (4) extends out of the base (1) and is fixedly connected to a crank (10).

5. A hand-cranked module according to claim 3, characterized in that: One end of the second threaded rod (31) extends out of the extension rod (6) and has an internal hexagonal groove (11).

6. A hand-cranked module according to claim 3, characterized in that: The length of the limiting block (7) is greater than the length of the threaded slider (32).

7. A hand-cranked module according to claim 1, characterized in that: When the two extension rods (6) are located inside the receiving groove (5), there is a gap between the two extension rods (6) at their closest ends.

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