Hand-cranking clamp

Abstract

The utility model relates to the technical field of fixtures, and discloses a hand-cranking fixture which comprises a circular fixture disc with a placing groove in the middle; the multiple groups of clamping shafts are annularly distributed on the clamp disc at equal intervals; the rotating shaft is sleeved in the middle of the clamp disc, and the upper surface of the rotating shaft is in transmission with the lower surface of the clamping shaft through insection; the placing table is arranged at the bottom of the clamp disc, and driving shafts are arranged on two sides; the two supporting frames are symmetrically arranged on the two sides of the containing table and rotationally connected with the driving shaft; and the worm is obliquely arranged at the bottom of the driving shaft and is in insection transmission with the driving shaft. 1, a user can manually adjust the size and the angle of an object clamped by the clamp through the hand-cranking rotating shaft and the worm drive; by means of the design, dependence on an electric adjusting device is avoided, complexity and fault risks possibly brought by an electric adjusting system are reduced, energy is saved, and operability is improved.

Description

Technical Field

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

[0002] In many industrial, scientific research and production fields, clamping and adjusting items are key operational steps; especially when handling precision or fragile items, the design and adjustment accuracy of the clamps are particularly important; traditional clamps mostly rely on electric or pneumatic systems for clamping and adjustment, which can achieve efficient and fast work, but also have some problems that cannot be ignored.

[0003] First, electric or pneumatic clamping systems are generally expensive, with high maintenance and operating costs, and may not function properly in certain special environments (such as when there is no power supply or equipment failure). Second, while electric clamps can improve operational efficiency, the adjustment of electric systems may have certain precision issues in some applications requiring finer control, especially when precise control of clamping force or clamping angle is needed, making it difficult to achieve sufficient fineness. Third, electric clamping systems are usually more complex and prone to failure, leading to increased downtime and maintenance costs.

[0004] In view of the above, this application proposes a hand-cranked clamp to solve the above problems, which enables the clamp to be adjusted in multiple dimensions, greatly improving the flexibility and accuracy of the clamp when handling complex materials; at the same time, it can not only reduce equipment costs, but also improve work efficiency and operational accuracy while enhancing system stability, and is widely applicable to occasions that require precise clamping and adjustment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hand-cranked clamp, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hand-cranked clamp, comprising,

[0008] The clamping disc is circular with a placement slot in the center;

[0009] The clamping shafts are provided in multiple sets, which are distributed in a ring at equal intervals on the clamping plate;

[0010] A rotating shaft is fitted onto the middle of the clamping disc, and its upper surface is connected to the lower surface of the clamping shaft via toothed transmission.

[0011] The placement platform is located at the bottom of the fixture plate, and drive shafts are provided on both sides;

[0012] There are two sets of support frames, symmetrically arranged on both sides of the placement platform, and rotatably connected to the drive shaft;

[0013] The worm gear is inclined at the bottom of the drive shaft and drives the drive shaft through the toothed gear.

[0014] Optionally, the clamping shaft is arranged in a stepped shape, and its bottom is provided with a first tooth pattern.

[0015] Optionally, the rotating shaft includes a disk, a second tooth, and a handle;

[0016] The diameter of the disk is adapted to the clamping disk;

[0017] The second tooth pattern is provided on the disk corresponding to the first tooth pattern;

[0018] The grips are provided in two symmetrical positions on the outer surface of the disc and exposed outside the clamping disc.

[0019] Optionally, the support frame includes an inclined plate and a base rod;

[0020] The top of the inclined plate is rotatably connected to the drive shaft via a rotating shaft;

[0021] The base rod is fixedly connected to the bottom of the inclined plate, wherein the inclined plate is positioned offset from one edge of the base rod.

[0022] Optionally, the drive shaft includes a fixed plate, a turbine, and a connecting rod;

[0023] The fixing plate is fixedly installed on the placement platform;

[0024] The turbine is fixedly connected to the bottom of the fixed plate;

[0025] One end of the connecting rod is fixedly connected to the fixed plate, and the other end is rotatably connected to the inclined plate.

[0026] Optionally, a positioning shaft is provided on the surface of the inclined plate, and the worm gear passes through the positioning shaft.

[0027] Optionally, the tilting orientation of the worm gear is set to correspond to the rotation trajectory of the drive shaft.

[0028] This utility model provides a hand-cranked clamp, which has the following beneficial effects:

[0029] 1. The size and angle of the clamped items can be manually adjusted by the hand-cranked rotating shaft and worm gear drive. This design avoids dependence on electric adjustment devices, reduces the complexity and failure risk of electric adjustment systems, saves energy, and improves operability.

[0030] 2. Manual adjustment and a relatively simple structural design make the device easy to adjust and maintain during use. Even in environments without power support, users can operate it manually, increasing the flexibility of its application scenarios. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the clamping shaft structure of this utility model;

[0033] Figure 3 This is a schematic diagram of the rotating shaft structure of this utility model;

[0034] Figure 4 This is a schematic diagram of the drive shaft structure of this utility model.

[0035] In the diagram: 1. Clamping plate; 11. Placement slot; 2. Clamping shaft; 21. First toothed groove; 3. Rotating shaft; 31. Disc; 32. Second toothed groove; 33. Handle; 4. Placement platform; 41. Drive shaft; 411. Fixing plate; 412. Turbine; 413. Connecting rod; 5. Support frame; 51. Inclined plate; 511. Positioning shaft; 52. Bottom rod; 6. Worm gear. Detailed Implementation

[0036] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0037] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of 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.

[0038] This application proposes a hand-cranked clamp, the details of which are as follows:

[0039] For reference Figure 1 This application mainly comprises a clamping disk 1 for receiving and holding objects, a clamping shaft 2 for performing clamping functions, a rotating shaft 3 set on the clamping disk 1 for driving the clamping shaft 2 to move, a placement platform 4 for supporting the clamping disk 1, a support frame 5 for supporting the placement platform 4, and a worm gear 6 for controlling the rotation of the placement platform 4. Through the cooperative arrangement of each group of components, the size of the clamped object and the tilt angle can be adjusted manually, thereby reducing the need for electric adjustment during operation.

[0040] For reference Figure 1-2 The clamping plate 1 is circular, and its circular shape makes it easier for the subsequent rotation of the rotating shaft 3; a placement groove 11 is provided in the middle of the plate, which is used to place the clamped material or item.

[0041] For reference Figure 1 The clamping shaft 2 is provided in multiple sets, at least three sets, and is distributed in a ring at equal intervals on the clamping plate 1. The material in the placement groove 11 is clamped and fixed by adjusting the movement. At the same time, the clamping shaft 2 is set in a stepped shape. This design can distribute the force at different heights, thereby applying pressure more evenly and reducing the movement or sliding of the object during the clamping process. Secondly, a first tooth 21 is provided at the bottom of the clamping shaft 2 to cooperate with the toothed transmission of the rotating shaft 3.

[0042] For reference Figure 1-3 A rotating shaft 3 is fitted onto the center of the clamping disk 1. The rotation of the rotating shaft 3 drives the toothed transmission at the bottom of the clamping shaft 2, thereby causing multiple sets of rotating shafts 3 to move synchronously to complete the clamping operation. To facilitate the rotation of the rotating shaft 3 and its cooperation with the clamping shaft 2, the rotating shaft 3 is configured to include a disc 31, a second toothed transmission 32, and a handle 33. The disc 31 is fitted onto the center of the clamping disk 1, its diameter matching the diameter of the clamping disk 1 but not exceeding it, thus avoiding misalignment. When the disc 31 rotates, friction occurs, causing the disc 31 to rotate. The second tooth 32 is provided on the disc 31 corresponding to the first tooth 21. The rotation of the disc 31 causes the second tooth 32 to engage with the first tooth 21, thereby driving the clamping shaft 2 and controlling the clamping size. To achieve the rotation of the disc 31, a handle 33 is provided. There are two handles 33, which are symmetrically provided on the outer surface of the disc 31 and exposed outside the clamping plate 1. When the disc 31 is rotated, it can be rotated by the handles 33.

[0043] For reference Figure 1 To ensure stable operation of the clamping plate 1 and facilitate its connection with the support frame 5, a placement platform 4 is provided at the bottom of the clamping plate 1 for support. Drive shafts 41 are provided on both sides of the placement platform 4, and are rotatably connected to the support frame 5 through the drive shafts 41. To further ensure stable support of the placement platform 4 by the support frame 5, the support frame 5 is designed to include an inclined plate 51 and a base rod 52. The top of the inclined plate 51 is rotatably connected to the drive shafts 41 through a pivot, and the base rod 52 is fixedly connected to the bottom of the inclined plate 51, with the inclined plate 51 offset to one edge of the base rod 52. This connection design allows the inclined plate 51 and the base rod 52 to work together better, forming a more robust structure that enables the support frame 5 to withstand greater loads.

[0044] For reference Figure 1 and Figure 4 In order to enable the support frame 5 to complete the rotational connection with the drive shaft 41, and then enable the drive shaft 41 to complete the linkage with the worm gear 6; so that when the worm gear 6 rotates, the drive shaft 41 rotates, thereby changing the rotational orientation of the clamping disk 1.

[0045] Specifically, the drive shaft 41 includes a fixed plate 411, a turbine 412, and a connecting rod 413. The fixed plate 411 is fixedly installed on the placement platform 4, the turbine 412 is fixedly connected to the bottom of the fixed plate 411, and one end of the connecting rod 413 is fixedly connected to the fixed plate 411, while the other end is rotatably connected to the inclined plate 51. The turbine 412 is supported by the bottom of the fixed plate 411 and rotates after working with the worm gear 6. The fixed plate 411 is rotatably connected to the support frame 5 through the connecting rod 413. Thus, when the worm gear 6 and the turbine 412 move, the fixed plate 411 rotates, thereby driving the placement platform 4 to rotate. The connecting rod 413 is connected to the support frame 5, which provides support.

[0046] For reference Figure 4 In order to ensure that the worm 6 continuously engages with the turbine 412 during movement, the worm 6 is inclined, and its inclination angle is set in accordance with the rotation trajectory of the turbine 412. At the same time, in order to prevent the worm 6 from changing position during daily operation, a positioning shaft 511 is provided on one side of the inclined plate 51. The worm 6 is inserted into the positioning shaft 511 to position the worm 6 and to enable the worm 6 to move along a fixed inclination direction.

[0047] In this invention, the working steps of the device are as follows:

[0048] 1. First, place the clamped item in the placement slot 11 in the middle of the clamping plate 1;

[0049] 2. Secondly, the rotation of the rotating shaft 3 causes the clamping shaft 2 to move, thereby clamping the items in the placement slot 11;

[0050] 3. Then, if the angle needs to be adjusted, the worm gear 6 and the drive shaft 41 are driven by toothed transmission, thereby causing the placement table 4 to rotate and the item on the clamping plate 1 to change direction;

[0051] 4. Finally, during clamping operations, the support frame 5 bears the load, increasing the stability of the device.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-operated clamp, characterized by: include, The clamping plate (1) is round and has a placement slot (11) in the middle. The clamping shaft (2) is provided in multiple sets, which are distributed in a ring at equal intervals on the clamping disk (1); The rotating shaft (3) is fitted onto the middle part of the clamping disc (1), and its upper surface is connected to the lower surface of the clamping shaft (2) by toothed transmission. The placement platform (4) is located at the bottom of the clamping plate (1), and has drive shafts (41) on both sides. There are two sets of support frames (5), which are symmetrically arranged on both sides of the placement platform (4) and are rotatably connected to the drive shaft (41); The worm (6) is inclined at the bottom of the drive shaft (41) and drives the drive shaft (41) through the toothed gear.

2. The hand vice of claim 1, wherein: The clamping shaft (2) is arranged in a stepped shape, and its bottom is provided with a first tooth pattern (21).

3. The hand vice of claim 2, wherein: The rotating shaft (3) includes a disc (31), a second tooth (32), and a handle (33); The diameter of the disk (31) is adapted to the clamp disk (1); The second tooth pattern (32) is provided on the disk (31) corresponding to the first tooth pattern (21); Two handles (33) are provided, symmetrically arranged on the outer surface of the disc (31) and exposed outside the clamping disc (1).

4. The hand vice of claim 1, wherein: The support frame (5) includes an inclined plate (51) and a base rod (52); The top of the inclined plate (51) is rotatably connected to the drive shaft (41) via a rotating shaft; The bottom rod (52) is fixedly connected to the bottom of the inclined plate (51), wherein the inclined plate (51) is set on one side edge of the bottom rod (52).

5. The hand vice of claim 1, wherein: The drive shaft (41) includes a fixed plate (411), a turbine (412), and a connecting rod (413). The fixing plate (411) is fixedly installed on the placement platform (4); The turbine (412) is fixedly connected to the bottom of the fixed plate (411); One end of the connecting rod (413) is fixedly connected to the fixing plate (411), and the other end is rotatably connected to the inclined plate (51).

6. The hand vice of claim 4, wherein: The inclined plate (51) is provided with a positioning shaft (511), and the worm (6) passes through the positioning shaft (511).

7. The hand vice of claim 1, wherein: The tilting orientation of the worm (6) corresponds to the rotation trajectory of the drive shaft (41).

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