Tool-free butterfly-shaped quick clamp

Abstract

The invention discloses a tool-free butterfly-shaped quick clamp, and relates to the technical field of quick clamps, the tool-free butterfly-shaped quick clamp is used for locking a stand column to a cabinet frame, and the tool-free butterfly-shaped quick clamp comprises a handle, a clamping part and a locking part, a stepped groove is formed in one side of the fixing plate and used for being matched with the cabinet frame, and a containing base distributed on the same side of the stepped groove is further fixed to the fixing plate; the pressing plate is of a groove-shaped structure and used for being matched with the stand column and containing the containing base in a half-containing mode, and a guide cylinder is further fixed to the middle of the pressing plate in a penetrating mode; the clamping pin extends out of the containing base in a sliding mode and can penetrate through the guide cylinder to be driven by the pin shaft and the handle, when the clamping pin is driven to move towards the guide cylinder, the clamping pin can impact the containing base at the last stage of movement, and the operating force needed by the second half process is obviously reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of quick clamps, and in particular to a tool-free butterfly quick clamp. Background Art

[0002] As a kind of workholding fixture that realizes quick clamping and loosening of workpieces through the operation of a handle, the butterfly quick clamp is widely used in fields such as mechanical assembly and equipment fixing. Its core advantage lies in amplifying and self-locking the operating force through a cam mechanism, thereby significantly improving the installation efficiency and reducing the manual time-consuming. In the field of server cabinets, quick clamps are often used to fix internal components, such as the quick connection between columns and server equipment.

[0003] However, the existing products have obvious defects in actual applications: for example, the first half of driving the quick clamp (the initial clamping stage) is relatively easy, but the second half (the final locking stage) requires a greater pressing force, resulting in the operator needing to apply force with the entire palm, and long-term operation is likely to cause hand fatigue and even injury; some designs still require auxiliary tools for adjustment and do not fully achieve the "tool-free" operation.

[0004] Therefore, it is necessary to provide a tool-free butterfly quick clamp to solve the above problems. Summary of the Invention

[0005] To solve the above problems, the present invention provides the following technical solutions: a tool-free butterfly quick clamp for locking a column to a cabinet frame, the tool-free butterfly quick clamp comprising:

[0006] A handle provided with a pin shaft thereon;

[0007] A fixing plate having a stepped groove opened on one side for mating with the cabinet frame, and a receiving seat fixedly provided on the fixing plate and distributed on the same side as the stepped groove;

[0008] A pressing plate having a groove-shaped structure for mating with the column and receiving the receiving seat halfway, and a guiding cylinder fixedly penetrating through the middle of the pressing plate;

[0009] A retaining pin slidably extending out of the receiving seat and capable of passing through the guiding cylinder and being driven by the pin shaft and the handle. When driving the retaining pin to move towards the guiding cylinder, the retaining pin can impact the receiving seat at the last stage of the movement.

[0010] Further, as a preference, a spring groove is opened on the fixing plate, a first spring is embedded in the spring groove, and a thimble is connected to the first spring.

[0011] Further, as a preference, a push ring is fixed to the outside of the latch pin, a follower ring is slidably connected to the outside of the latch pin, a second spring is connected between the push ring and the follower ring, a plurality of second magnets are embedded in the follower ring, and a plurality of first magnets corresponding to the second magnets are embedded in the accommodation seat.

[0012] Further, as a preference, the plurality of first magnets and the plurality of second magnets are configured such that the follower ring remains stationary relative to the accommodation seat before the handle rotates by a certain degree.

[0013] Further, as a preference, a positioning groove is further formed at the end of the accommodation seat, and a protrusion corresponding to the positioning groove is formed on the follower ring.

[0014] Further, as a preference, a tail post is further fixed to one end of the latch pin close to the fixing plate, and a slider is provided on the surface of the tail post;

[0015] A quick-release post is slidably arranged in the fixing plate, the quick-release post is of a hollow structure, and an axial groove and a circumferential groove corresponding to the slider are formed inside the quick-release post.

[0016] Further, as a preference, a third spring is further arranged between the quick-release post and the fixing plate.

[0017] Further, as a preference, a resistance-increasing head is fixed to the surface of the stepped groove, and the resistance-increasing head has elasticity.

[0018] Compared with the prior art, the present invention provides a tool-free butterfly quick clamp, which has the following beneficial effects:

[0019] In the present invention, the latch pin can impact the accommodation seat at the last stage of movement, and this impact helps to overcome the last resistance during the locking process, significantly reducing the operating force required in the second half. Once the locking is completed, the quick clamp maintains a stable clamping force to ensure a firm connection between the column and the cabinet frame.

[0020] In the present invention, when the slider is located in the circumferential groove, the movement of the quick-release post will drive the latch pin to move together, thereby releasing the self-locking function of the handle. Once the self-locking function is released, the handle can be easily rotated back to its original position to achieve quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the implementation of the tool-free butterfly quick clamp;

[0022] Figure 2 is a three-dimensional exploded view of the tool-free butterfly quick clamp;

[0023] Figure 3 is a three-dimensional structural diagram of the tool-free butterfly quick clamp;

[0024] Figure 4 Front view structural schematic diagram of the tool-free butterfly quick clamp in the open state;

[0025] Figure 5 Side view structural schematic diagram of the tool-free butterfly quick clamp in the open state;

[0026] Figure 6 Front view structural schematic diagram of the tool-free butterfly quick clamp in the closed state;

[0027] Figure 7 Side view structural schematic diagram of the tool-free butterfly quick clamp in the closed state;

[0028] Figure 8 Cross-sectional structural schematic diagram of the tool-free butterfly quick clamp;

[0029] Figure 9 Stereo semi-sectional schematic diagram of the quick-release post in the tool-free butterfly quick clamp;

[0030] In the figure: 1, cabinet frame; 2, column; 3, tool-free disc-shaped quick clamp; 31, handle; 32, pin shaft; 33, pressing plate; 34, guide cylinder; 35, fixing plate; 36, resistance increasing head; 37, stepped groove; 38, accommodating seat; 39, retaining pin; 310, spring groove; 311, first spring; 312, ejector pin; 313, quick-release post; 381, first magnet; 382, positioning groove; 391, tail post; 392, push ring; 393, second spring; 394, follower ring; 395, second magnet; 3131, axial groove; 3132, circumferential groove. Detailed implementation manners

[0031] In the description of the present application, the specification, claims and the above accompanying drawings, terms such as "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, which is only a way of distinguishing objects with the same attributes when describing the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that a process, method, system, product or device including a series of units does not necessarily limit to those units, but may include other units not clearly listed or inherent to these processes, methods, products or devices.

[0032] Embodiment: Please refer to Figures 1-9 , in the embodiment of the present invention, a tool-free butterfly quick clamp is provided for locking the column 2 to the cabinet frame 1. The tool-free butterfly quick clamp 3 includes:

[0033] A handle 31, on which a pin shaft 32 is provided;

[0034] The fixed plate 35 has a stepped groove 37 on one side for mating with the cabinet frame 1, and a receiving seat 38 is also fixed on the fixed plate 35 and distributed on the same side as the stepped groove 37;

[0035] The pressing plate 33 has a groove-like structure for mating with the column 2 and semi-receiving the receiving seat 38, and a guiding cylinder 34 is fixedly penetrated through the middle of the pressing plate 33;

[0036] The locking pin 39 slides out of the receiving seat 38 and can pass through the guiding cylinder 34 and is then driven by the pin shaft 32 and the handle 31. When driving the locking pin 39 to move towards the guiding cylinder 34, the locking pin 39 can impact the receiving seat 38 at the last stage of the movement.

[0037] During implementation, the pressing plate 33 is located on one side of the column 2, and the fixed plate 35 is located on the other side of the column 2, forming a clamping structure. The stepped groove 37 is aligned with the cabinet frame 1 for preparation of locking; the receiving seat 38 penetrates through the column 2 and is semi-received in the pressing plate 33.

[0038] The operator presses the handle 31, and the force is transmitted through the pin shaft 32. The pin shaft 32 serves as a transmission component to convert the pressing force of the operator into the moving power of the locking pin 39. The locking pin 39 moves towards the guiding cylinder 34 within the receiving seat 38. The movement of the locking pin 39 drives the fixed plate 35 to also move towards the guiding cylinder 34. With the movement of the fixed plate 35, the stepped groove 37 thereon closely cooperates with the cabinet frame 1 to achieve locking.

[0039] At the last stage of the movement of the locking pin 39, it impacts the receiving seat 38, generating an instantaneous impact force. This impact force helps to overcome the final resistance during the locking process and significantly reduces the operating force required in the second half. Once the locking is completed, the quick clamp maintains a stable clamping force to ensure a firm connection between the column 2 and the cabinet frame 1.

[0040] In this embodiment, through the impact locking mechanism, the operating force required in the second half is significantly reduced, making the entire operation process more labor-saving. The clamping structure of the fixed plate 35 and the pressing plate 33, as well as the close cooperation between the stepped groove 37 and the cabinet frame 1, ensure the stability of the high-density cabinet structure.

[0041] The design of the tool-free butterfly quick clamp 3 is particularly suitable for the quick installation of the server cabinet column, meeting the requirements of the data center for efficient, labor-saving, and reliable installation. Its modular design makes the installation process more flexible.

[0042] Specifically, a spring groove 310 is formed on the fixed plate 35, a first spring 311 is embedded in the spring groove 310, and a thimble 312 is connected to the first spring 311.

[0043] An outer part of the latch pin 39 is fixedly provided with a pushing ring 392. An outer part of the latch pin 39 is slidably connected with a follower ring 394. A second spring 393 is connected between the pushing ring 392 and the follower ring 394. A plurality of second magnets 395 are embedded in the follower ring 394. A plurality of first magnets 381 corresponding to the second magnets 395 are embedded in the accommodation seat 38.

[0044] The plurality of first magnets 381 and the plurality of second magnets 395 are configured such that the follower ring 394 remains stationary relative to the accommodation seat 38 before the handle 31 rotates 90 degrees.

[0045] Then, during implementation, it is divided into a first half and a second half. The first half and the second half are demarcated by the handle 31 rotating 90 degrees. In the first half, an operator presses the handle 31, and drives the latch pin 39 to move towards the direction of the guiding cylinder 34 through the pin shaft 32. At this time, power is transmitted through the pushing ring 392 and the follower ring 394, so that the accommodation seat 38 and the fixing plate 35 move towards the direction of the guiding cylinder 34. At this time, the first spring 311 is compressed. As the latch pin 39 continues to move, the first spring 311 maintains this compressed state, the follower ring 394 remains stationary relative to the accommodation seat 38, and the second spring 393 begins to be compressed.

[0046] In the second half, as the latch pin 39 continues to move, the follower ring 394 breaks away from the magnetic force restriction of the first magnet 381. At this time, the second spring 393 rebounds, and then the follower ring 394 impacts the accommodation seat 38. The accommodation seat 38 and the fixing plate 35 move towards the direction of the guiding cylinder 34. At this time, the compression degree of the first spring 311 deepens. Through the above process, the operating force required in the second half is significantly reduced.

[0047] Of course, during this operation process, the operator should have certain force application skills so as to adapt to each stage.

[0048] It should also be explained that if the elastic force of the second spring 393 does not exceed the magnetic attraction force of the first magnet 381 on the second magnet 395, the follower ring 394 will remain relatively stationary; once the elastic force exceeds the magnetic attraction force, the follower ring 394 will start to move. Generally, the magnetic attraction force weakens as the distance increases. When the follower ring 394 starts to move, the magnetic attraction force will gradually decrease. Therefore, in the second half, as the latch pin 39 continues to move, the follower ring 394 breaks away from the magnetic force restriction of the first magnet 381, and at this time, the second spring 393 rebounds.

[0049] Furthermore, a positioning groove 382 is further formed at an end of the accommodation seat 38, and a protrusion corresponding to the positioning groove 382 is formed on the follower ring 394.

[0050] When the follower ring 394 moves driven by the latch pin 39, the protrusion thereon will be inserted into the positioning groove 382 of the receiving seat 38. This design ensures the stability of the subsequent movement of the receiving seat 38.

[0051] In this embodiment, a tail post 391 is further fixed to one end of the latch pin 39 close to the fixed plate 35, and the surface of the tail post 391 has a slider.

[0052] A quick-release post 313 is slidably arranged in the fixed plate 35. The quick-release post 313 is of a hollow structure, and an axial groove 3131 and a circumferential groove 3132 corresponding to the slider are formed inside the quick-release post 313.

[0053] Among them, the axial groove 3131 allows the slider to slide axially without driving the quick-release post 313 itself to move. The circumferential groove 3132 is designed to be able to closely cooperate with the slider. When the slider is located in the circumferential groove 3132, the movement of the quick-release post 313 will drive the latch pin 39 to move together.

[0054] Then, when it is necessary to release the clamping of the cabinet frame 1 and the column 2 by the tool-free butterfly quick clamp, the operator can drive the quick-release post 313 to move towards the direction of the guide cylinder 34. During this process, the slider is located in the circumferential groove 3132, and the movement of the quick-release post 313 will drive the latch pin 39 to move together, thereby releasing the self-locking function of the handle 31. Once the self-locking function is released, the handle 31 can be easily rotated and reset to achieve quick disassembly.

[0055] When the quick-release post 313 is rotated to a position where the slider is located in the axial groove 3131. In this way, the slider can slide freely axially without driving the quick-release post 313 to move, realizing the independent movement of the latch pin 39.

[0056] Furthermore, a third spring is also arranged between the quick-release post 313 and the fixed plate 35.

[0057] After the quick-release post 313 is driven to move to release the self-locking function of the handle 31, the third spring can provide a restoring force to enable the quick-release post 313 to automatically return to the original position after the external force is removed. This helps to maintain the stability and reliability of the quick-release mechanism.

[0058] In this embodiment, a resistance-increasing head 36 is fixed to the surface of the stepped groove 37, and the resistance-increasing head 36 has elasticity.

[0059] The resistance-increasing head 36 will increase the static friction between the lifting fixing plate 35 and the cabinet frame 1, and is especially suitable for vibration environments (such as server rooms). The elastic material can absorb the tiny deformation of the cabinet frame 1 caused by temperature changes or loads, avoiding locking failure. In addition, the resistance-increasing head 36 can be compressed and deformed to adapt to cabinet frames 1 with different surface roughnesses. Even if there are machining errors in the cabinet frame 1, the resistance-increasing head 36 can still fill the gap to ensure effective engagement of the stepped groove 37.

[0060] Preferably, the resistance-increasing head 36 can be fixed by buckling or gluing, and can be replaced separately after wear, reducing the maintenance cost.

[0061] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A tool-free butterfly quick clamp for locking a column (2) to a cabinet frame (1), characterized in that, The tool-free butterfly quick clamp (3) includes: a handle (31) provided with a pin shaft (32) thereon; a fixing plate (35) having a stepped groove (37) formed on one side thereof for mating with the cabinet frame (1), and a receiving seat (38) fixedly attached to the fixing plate (35) and distributed on the same side as the stepped groove (37); a pressing plate (33) having a groove-like structure for mating with the column (2) and partially receiving the receiving seat (38), and a guiding cylinder (34) fixedly penetrating through the middle of the pressing plate (33); a locking pin (39) slidably protruding from the receiving seat (38) and capable of passing through the guiding cylinder (34) and then being driven by the pin shaft (32) and the handle (31). When the locking pin (39) is driven to move towards the guiding cylinder (34), the locking pin (39) can impact the receiving seat (38) at the final stage of the movement.

2. The tool-free butterfly quick clamp according to claim 1, characterized in that, A spring groove (310) is formed on the fixing plate (35), a first spring (311) is embedded in the spring groove (310), and a thimble (312) is connected to the first spring (311).

3. The tool-free butterfly quick clamp according to claim 1, characterized in that, A pushing ring (392) is fixedly attached to the outside of the locking pin (39), a follower ring (394) is slidably connected to the outside of the locking pin (39), a second spring (393) is connected between the pushing ring (392) and the follower ring (394), a plurality of second magnetic blocks (395) are embedded in the follower ring (394), and a plurality of first magnetic blocks (381) corresponding to the second magnetic blocks (395) are embedded in the receiving seat (38).

4. The tool-free butterfly quick clamp according to claim 3, characterized in that The plurality of first magnetic blocks (381) and the plurality of second magnetic blocks (395) are configured such that the follower ring (394) remains stationary relative to the receiving seat (38) before the handle (31) rotates 90 degrees.

5. The tool-free butterfly quick clamp according to claim 3, wherein A positioning groove (382) is further formed at the end of the receiving seat (38), and a protrusion corresponding to the positioning groove (382) is formed on the follower ring (394).

6. The tool-free butterfly quick clamp according to claim 3, characterized in that, A tail post (391) is fixedly attached to one end of the locking pin (39) close to the fixing plate (35), and a slider is provided on the surface of the tail post (391). A quick-release post (313) is slidably disposed in the fixing plate (35), the quick-release post (313) has a hollow structure, and an axial groove (3131) and a circumferential groove (3132) corresponding to the slider are formed inside the quick-release post (313).

7. The tool-free butterfly quick clamp according to claim 6, wherein A third spring is further provided between the quick-release post (313) and the fixing plate (35).

8. The tool-free butterfly quick clamp according to claim 1, wherein, An anti-slip head (36) is fixedly attached to the surface of the stepped groove (37), and the anti-slip head (36) is elastic.

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