C-shaped clamp capable of being rotationally connected

Abstract

According to the C-shaped clamp capable of being rotationally connected, the clamping lead screw is driven to move up and down through rotation of the handle assembly so that clamping and loosening in the clamping state can be achieved, operation is more convenient, and the length of the handle assembly can be adjusted. The adjustable handle can conveniently adapt to different handle rotating environments, the rotating force arm can be adjusted according to conditions, the adjusting efficiency is improved, and a limiting ring at the end of the handle can prevent the handle from falling off. The lower end of the lead screw makes contact with the clamping face through the fixing pressing block, damage to the pressing face caused by distance pressure of the lead screw is reduced, the area of the clamping face can be adjusted according to needs, the area of the clamping face can be reduced due to the fact that the middle of the clamping face is hollowed out, but a ring of the clamping face can still keep the large size, the clamping effect is better, and clamping is more stable. And the clamping device is connected through the mounting assembly, so that the clamp can rotate, is suitable for different clamping scenes, and is more convenient to use and operate.

Description

Technical Field

[0001] This utility model relates to C-type clamps, and more particularly to a C-type clamp that can be rotatably connected. Background Technology

[0002] A clamp is a device used in mechanical manufacturing to fix a workpiece in the correct position for operation or inspection. C-clamps (G-clamps) are common clamping tools widely used in machining, woodworking, and other fields. Traditional C-clamps typically use a helical rotation mechanism for clamping, which often suffers from the following problems: limited clamping stability: The screw structure of traditional C-clamps is relatively simple, which may lead to uneven force distribution or loosening of the clamp. Low adjustment efficiency: The screw design of some traditional clamps makes clamping and loosening relatively laborious, reducing efficiency. Limited resistance to deformation: If the C-frame structure is not optimized, uneven force distribution may cause deformation during long-term use, affecting service life.

[0003] Chinese Patent Publication No. CN208629273U discloses a C-type clamp for photovoltaic modules, including a main support frame, a support column, and a support rod. The left side of the main support frame is seamlessly welded to the right side of the clamping column. The support rod is inserted through the interior of the clamping column. The support column is movably connected to the bottom end of the main support frame. A hand-tightening bolt is inserted through the bottom right side of the support frame. A rotating column is fixedly connected to the bottom end of the support column by a nut. In this invention, the clamping plate and the support rod rotate 180 degrees via movable ball bearings. When using this C-type clamp, the clamping plate can rotate 180 degrees. Because photovoltaic modules are connected at an angle, the clamping plate can effectively and tightly fit the angled photovoltaic modules, allowing the clamping plate and the clamping support block to effectively clamp the photovoltaic modules. This solves the problem that existing C-type clamps cannot tightly fit the photovoltaic modules that need to be clamped when clamping special objects, thus failing to effectively clamp the objects. The clamp described in this patent has a limited operating environment, and the screw directly contacts the object for clamping, which can easily leave marks on the surface of the object. In addition, the clamp cannot be rotated, making the operating environment quite harsh and causing some inconvenience. Utility Model Content

[0004] The technical problem this invention aims to solve is that traditional C-clamps typically use a helical rotation mechanism for clamping, which limits clamping stability: the screw structure of C-clamps is relatively simple, which may lead to uneven force distribution or loosening of the clamp. Adjustment efficiency is also low: the screw design of some traditional clamps makes clamping and loosening relatively laborious, reducing efficiency. To address these shortcomings of the prior art, this invention provides a rotatably connected C-clamp.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A rotatable C-shaped clamp is constructed, comprising a clamping assembly. One end of the clamping assembly is connected to a mounting assembly, and the other end is connected to a handle assembly via a connecting post. The clamping assembly includes a C-shaped frame, a lead screw connected to the C-shaped frame, and a lead screw passing through the lead screw. The lead screw is connected to the connecting post. The handle assembly moves in a first direction, causing the lead screw to move in a second direction to achieve clamping and releasing. The clamping assembly can rotate in a direction perpendicular to the mounting assembly.

[0007] Preferably, the handle assembly rotates in the horizontal direction, causing the lead screw to move in the vertical direction to achieve clamping and releasing.

[0008] Preferably, the lead screw nut and the lead screw are threaded together, and a fixed pressure block is connected to the lower end of the lead screw. The movement of the lead screw in the vertical direction drives the fixed pressure block to move in the vertical direction.

[0009] Preferably, the lower end of the fixed pressure block forms a clamping surface, and the middle part of the clamping surface forms a hollow cavity.

[0010] Preferably, the lower end of the connecting column is provided with a lead screw blind hole, and the side is provided with a pin through hole that passes through the lead screw. The upper end of the lead screw is provided with a corresponding pin through hole. After the lead screw is inserted into the lead screw blind hole, the pin through hole corresponds. The connecting column is also provided with a pin that passes through the pin through hole. The lead screw and the connecting column are connected by the pin and keep rotating synchronously.

[0011] Preferably, the handle assembly includes a handle, and the connecting post is provided with a handle through hole corresponding to the handle. The handle passes through the handle through hole, and the rotation of the handle drives the connecting post to rotate.

[0012] Preferably, the handle moves within the handle through hole to change the length of the handles on both sides of the connecting post, and a limiting ring is provided at the end of the handle, the radius of which is larger than the radius of the handle through hole.

[0013] Preferably, the mounting assembly includes mounting plates placed on both sides of the C-shaped frame, both the mounting plates and the C-shaped frame are provided with pivot holes, and also includes a mounting pivot that passes through the pivot holes, the mounting plates and the C-shaped frame are connected by the mounting pivot and the C-shaped clamp is installed in the mounting position.

[0014] Preferably, the C-shaped frame can rotate relative to the mounting shaft to drive the C-shaped clamp to rotate.

[0015] Preferably, one end of the mounting shaft is provided with a limiting end, the radius of which is larger than the radius of the through hole of the shaft, and the other end is provided with a locking hole.

[0016] The beneficial effects of this utility model are as follows: The rotation of the handle assembly drives the clamping screw to move up and down, thereby achieving clamping and releasing. This makes operation more convenient. The length of the handle assembly can be adjusted left and right to adapt to different handle rotation environments. The rotation arm can also be adjusted as needed to improve adjustment efficiency. The limiting ring at the end of the handle prevents the handle from falling off during adjustment. The lower end of the screw contacts the clamping surface through a fixed pressure block, reducing the distance pressure of the screw from damaging the clamping surface. The area of ​​the clamping surface can be adjusted as needed. A hollowed-out center in the clamping surface reduces its area while maintaining a relatively large size, resulting in better and more stable clamping. The clamping device is connected by mounting components, allowing the clamp to rotate, making it suitable for different clamping scenarios and more convenient to use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the axial structure of the C-type clamp according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of another axis structure of the C-type clamp according to a preferred embodiment of the present invention;

[0020] Figure 3 This is an exploded view of the C-type clamp according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram illustrating the usage process of the C-type clamp according to a preferred embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] A preferred embodiment of this utility model provides a rotatably connected improved C-type clamp; such as... Figures 1-3As shown, the clamp can lock the cylinder body and the cover on the cylinder body. The clamp includes a clamping assembly 50 for locking the cylinder body and the cover, and the lower end of the clamping assembly 50 is connected to the cylinder body via a mounting assembly 60, and the upper end of the clamping assembly is connected to a handle assembly 20 via a connecting post 30. The clamping assembly moves by rotating the handle assembly, thereby clamping and locking the cover to the cylinder body, or releasing the cover in the clamped and locked state.

[0024] Specifically, such as Figures 1-3 As shown, the clamping assembly 50 includes a C-shaped frame 503, with a mounting assembly 60 connected to the lower end of the C-shaped frame and a lead screw 500 connected to the upper end. A lead screw through hole 504 is provided in the middle of the lead screw, and a thread corresponding to the lead screw is provided in the lead screw through the through hole. The threaded connection makes the rotation of the lead screw smoother, reduces frictional resistance, and improves operating efficiency. The clamping assembly also includes a lead screw 501 disposed in the lead screw through hole, which can move up and down to change the position of the lower end of the lead screw. To prevent the lead screw from directly pressing against the cover door, a fixing block 502 is connected to the lower end of the lead screw. A lead screw connection hole 505 is provided in the middle of the fixing block, and the lower end of the lead screw is placed in the lead screw connection hole and connected to the fixing block by a fixing ring 506. The lower end of the fixed pressure block forms a clamping surface 507, while the lower end of the lead screw does not pass through the lead screw connection hole, creating a hollow cavity 508 inside the lead screw. When the lead screw moves downward, the clamping surface moves downward and contacts the cover door, clamping it tightly. Due to the hollow cavity in the middle of the clamping surface, the area of ​​the clamping surface is reduced, avoiding excessive clamping force on the cover door. Simultaneously, the radius of the fixed pressure block is larger than the radius of the lead screw through hole 504, preventing accidental detachment of the lead screw during rotation and improving the durability of the fixture. The C-shaped frame uses high-strength materials, thereby improving its resistance to deformation.

[0025] Furthermore, such as Figures 1-3 As shown, the mounting assembly 60 includes two sets of oppositely arranged mounting plates 600, with a pivot hole 603 correspondingly provided in the middle of the mounting plate, and a pivot hole 603 also provided at the lower end of the C-shaped frame. The mounting assembly 60 also includes a mounting pivot 601 connecting the mounting plates and the C-shaped frame. The mounting plates are placed on both sides of the C-shaped frame, and the three sets of pivot holes are aligned. The mounting plates and the C-shaped frame are connected by passing the mounting pivot 601 through the three sets of holes. The mounting position of the cylinder block can also pass through the mounting pivot. One end of the mounting pivot is provided with a limit end 604, and the other end is provided with a locking hole 602. Inserting the locking element into the locking hole completes the connection between the mounting assembly and the clamping assembly. The connected clamping assembly can rotate relative to the mounting pivot, thereby adapting to different installation environments.

[0026] Furthermore, such as Figures 1-3As shown, the lower end of the connecting column 30 is provided with a lead screw blind hole 302. The upper end of the lead screw 501 is inserted into the lead screw blind hole 302. At the same time, the lead screw is provided with a pin through hole 301. The pin through hole penetrates the connecting column in a direction perpendicular to the connecting column, and the pin through hole also passes through the lead screw blind hole 302. At the same time, the upper end of the lead screw 501 is also provided with a corresponding pin through hole 301. The upper end of the lead screw is inserted into the lead screw blind hole, and then the pin 40 is inserted into the pin through hole to connect the lead screw to the connecting column. When the connecting column rotates, it drives the lead screw to rotate synchronously. Another set of handle through holes 300 is provided above the connecting post. The handle assembly 20 includes a handle 20 passing through the handle through hole and limiting rings 201 set at both ends of the handle. The radius of the limiting rings is larger than the radius of the handle through hole 300, so that the distance between the two ends of the handle can be adjusted within the handle through hole to adjust the length of the handle at both ends of the connecting post, thereby realizing different lever arms, which can adapt to different rotation forces and facilitate different rotation forces to achieve a good clamping effect. The limiting rings can prevent the handle from falling off the connecting post. At the same time, the handle assembly can only be separated from the connecting post when the limiting rings 201 are removed.

[0027] When using, such as Figure 4 As shown, the C-clamp is connected to the cylinder body via the mounting assembly 60. Then, the cover is closed onto the cylinder body, and the C-clamp is rotated so that the upper end of the C-frame 503 is positioned above the cover. The handle assembly 20 is then rotated to rotate the lead screw, causing the fixed pressure block 502 to move towards the cover until it presses the cover firmly. The handle assembly is then stopped, and the C-clamp is used to lock the cover onto the cylinder body. To open the cover, the handle assembly is rotated in the opposite direction to move the lead screw upwards, moving the fixed pressure block away from the cover. The C-clamp is then rotated until it no longer interferes with opening the cover, thus opening the cover.

[0028] It should be understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A rotatably connected C-shaped clamp, comprising a clamping assembly, one end of which is connected to a mounting assembly, and the other end of which is connected to a handle assembly via a connecting post. The clamping assembly includes a C-shaped frame, a lead screw connected to the C-shaped frame, and a lead screw passing through the lead screw, the lead screw being connected to the connecting post, characterized in that: The handle assembly moves in a first direction to drive the screw rod to move in a second direction to realize clamping and loosening, the clamping assembly can rotate in a direction perpendicular to the installation assembly, the handle assembly rotates in a horizontal direction to drive the screw rod to move in a vertical direction to realize clamping and loosening, the connecting column is provided with a screw rod blind hole at the lower end and a pin through hole penetrating the screw rod at the side, the screw rod is provided with a pin through hole at the upper end, the pin through hole of the screw rod corresponds to the pin through hole after the screw rod is inserted into the screw rod blind hole, and the connecting column is further provided with a pin penetrating the pin through hole, so that the screw rod and the connecting column are connected and kept synchronous rotation through the pin.

2. The C-clip of claim 1, wherein: The screw rod nut and the screw rod are connected through threads, and the screw rod is connected with a fixed pressing block at the lower end.

3. The C-clip of claim 2, wherein: The fixed pressing block is formed with a clamping surface at the lower end, and the clamping surface is formed with a hollow cavity in the middle.

4. The C-clip of any of claims 1-3, wherein: The handle assembly comprises a handle, the connecting column is provided with a handle through hole corresponding to the handle, the handle penetrates the handle through hole, and the handle rotates to drive the connecting column to rotate.

5. The C-clip of claim 4, wherein: The handle moves in the handle through hole to change the length of the handle on both sides of the connecting column, and the end of the handle is provided with a limiting ring with a radius larger than that of the handle through hole.

6. The C-clip of claim 1, wherein: The installation assembly comprises installation plates arranged on both sides of the C-shaped frame, the installation plates and the C-shaped frame are provided with rotating shaft through holes, and the installation assembly further comprises an installation rotating shaft penetrating the rotating shaft through holes, so that the installation plates and the C-shaped frame are connected through the installation rotating shaft, and the C-shaped clamp is installed at the installation position.

7. The C-clip of claim 6, wherein: The C-shaped frame can rotate relative to the installation rotating shaft to drive the C-shaped clamp to rotate.

8. The C-clip of claim 7, wherein: One end of the installation rotating shaft is provided with a limiting end with a radius larger than that of the rotating shaft through hole, and the other end is provided with a locking hole.

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