Quick-release coupling

Abstract

The utility model discloses a quick detachable shaft coupling, including up and down connecting disc and butt joint disc, butt joint disc takes even fastening hole, the hole is equipped with the locating block, and the block has locking groove and spacing component, still is equipped with fastening component, and the fixed block of fastening component is equipped with handheld block up and down, and the one side of handheld block has the symmetric L type block, and its bottom locking block is clamped into locking groove, and spacing component is above locking block, and the unlocking assembly is established to fixed block near butt joint disc and leans edge, press unlocking assembly, and spacing component contracts, and handheld block connects locking block and separates from locking groove, realizes quick split, and handheld block is connected through handheld ring, and can be pressed synchronously, and one person can disassemble and assemble and need not tool, and unlocking assembly pressing stroke and spacing component telescopic length match, and operation feedback is clear, can prevent mistaken operation.

Description

Technical Field

[0001] This utility model specifically relates to a quick-release coupling. Background Technology

[0002] Couplings, as key components in mechanical transmission systems, are widely used in industrial machinery, automobile manufacturing, rail transportation, agricultural equipment, and automated production lines. Their main function is to connect the driving shaft and the driven shaft and transmit torque, ensuring the stable operation of the power system. With the development of modern industry towards higher efficiency and intelligence, the requirements for ease of maintenance of equipment are increasing. The structural defects of traditional couplings are gradually becoming a bottleneck restricting production efficiency.

[0003] In existing technologies, couplings are mainly classified into rigid couplings and flexible couplings. In automated steel pipe production lines, traditional couplings cannot meet the needs of complete replacement of the rolling mill unit, resulting in excessive downtime and significant production losses. Existing couplings are complex to install and operate, severely impacting equipment portability and transport efficiency. Furthermore, the disassembly and assembly of existing couplings still require specialized tools; some structures rely on complex snap-fit ​​or pin devices, which are not only cumbersome to operate but also prone to loosening or detachment under high-speed rotation conditions.

[0004] Therefore, it is necessary to invent a quick-release coupling to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a quick-release coupling that can quickly disassemble the coupling.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-release coupling, comprising connecting discs at the upper and lower ends, a mating disc between the two connecting discs, a plurality of evenly spaced fastening holes on the mating disc, a positioning block installed in each of the plurality of fastening holes, and a fastening component on the positioning block;

[0009] The positioning block is inserted into the fastening hole. The positioning block has locking grooves at both the upper and lower ends. A limiting component is provided on one side of the top of the locking groove. The fastening component is installed in the locking groove at both the upper and lower ends.

[0010] The fastening assembly includes a fixing block, with hand-held blocks installed at both ends of the fixing block. An L-shaped block extends from one side of each hand-held block, and the two L-shaped blocks are symmetrically arranged. A locking block is installed on the bottom side of each L-shaped block, and the locking block is locked in the locking groove. The limiting component is positioned above the locking block. The fixing block is also provided with an unlocking component on the side near the docking plate. The fixing block is close to the edge of the docking plate. When the unlocking component is pressed into the fixing block, the limiting component retracts, and the hand-held blocks at both ends, together with the locking block, disengage from the locking groove.

[0011] Preferably, the limiting component is disposed on one side of the top of the locking groove and extends into the locking groove. The limiting component includes a telescopic groove disposed on one side of the top of the locking groove. A limiting plate is installed in the telescopic groove. A plurality of limiting telescopic springs are installed between the bottom of the limiting plate and the bottom of the telescopic groove. The limiting plate is limited within the telescopic groove.

[0012] Preferably, the L-shaped block has a locking telescopic groove on its bottom outer side, the locking block is installed in the locking telescopic groove, a compression spring is provided between the bottom of the locking block and the bottom of the locking telescopic groove, and a matching locking block limiting strip and locking block limiting frame are provided at the bottom edge of the locking block and the opening of the locking telescopic groove.

[0013] Preferably, the fixed block has compression grooves at both the top and bottom ends, a limiting frame is provided at the opening of the compression groove, a limiting strip matching the limiting frame is provided at the bottom edge of the hand block, and a pressing spring is provided between the bottom of the hand block and the bottom of the compression groove.

[0014] Preferably, the unlocking component includes a groove on one side of the fixing block, an unlocking block is provided in the groove, an unlocking spring is provided between the bottom of the unlocking block and the bottom of the groove, the unlocking block moves in the groove, and the moving distance matches the length of the limiting component provided in the locking groove.

[0015] Preferably, hand rings are installed on the hand blocks at both ends, and the hand blocks at both ends are pressed synchronously toward the fixed block through the hand rings.

[0016] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0017] 1. This utility model, through the cooperation of the unlocking component and the limiting component, allows the limiting component to retract when the unlocking block is pressed, releasing the constraint of the locking block on the locking groove, and allowing the upper and lower hand blocks to disengage simultaneously, thus realizing the rapid disassembly of the coupling;

[0018] 2. This utility model uses a handheld ring and a synchronous pressing structure. The two handheld blocks are connected by the handheld ring and can be pressed synchronously towards the fixed block, reducing the difficulty of operation. One person can complete the disassembly and assembly without additional auxiliary tools. The groove and unlocking block design of the unlocking component match the extension length of the limiting component, and the operation feedback is clear, avoiding misoperation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial disassembled structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the positioning block, fastening component, and unlocking component of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled fastening component of this utility model. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the disassembled fastening component of this utility model. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the installation structure of the limiting component of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Connecting plate; 2. Connecting plate; 21. Fastening hole; 3. Positioning block; 31. Locking groove; 32. Limiting component; 33. Telescopic groove; 34. Limiting plate; 35. Limiting telescopic spring; 4. Fastening component; 41. Fixing block; 411. Compression groove; 412. Limiting frame; 42. Handheld block; 421. Limiting strip; 43. L-shaped block; 44. Locking block; 441. Locking telescopic groove; 442. Compression spring; 443. Locking block limiting strip; 444. Locking block limiting frame; 45. Pressing spring; 46. Handheld ring; 5. Unlocking component; 51. Groove; 52. Unlocking block; 53. Unlocking spring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-6 The quick-release coupling shown includes connecting discs 1 at the upper and lower ends, a mating disc 2 between the two connecting discs 1, a plurality of evenly spaced fastening holes 21 on the mating disc 2, a positioning block 3 installed in each of the plurality of fastening holes 21, and a fastening component 4 on the positioning block 3.

[0030] Specifically, the positioning block 3 is inserted into the fastening hole 21, and the upper and lower ends of the positioning block 3 are provided with locking grooves 31. The top side of the locking groove 31 is provided with a limiting component 32, and the upper and lower ends of the fastening component 4 are installed in the locking groove 31.

[0031] Specifically, the fastening component 4 includes a fixing block 41, with hand-held blocks 42 installed at the upper and lower ends of the fixing block 41. An L-shaped block 43 extends from one side of the hand-held block 42. The two L-shaped blocks 43 are symmetrically arranged, and a locking block 44 is installed on the bottom side of the L-shaped block 43. The locking block 44 is locked in the locking groove 31, and the limiting component 32 is placed above the locking block 44. An unlocking component 5 is also provided on the side of the fixing block 41 near the docking plate 2. When the fixing block 41 is close to the edge of the docking plate 2, the unlocking component 5 is pressed into the fixing block 41, that is, the limiting component 32 retracts, and the hand-held blocks 42 at the upper and lower ends, together with the locking block 44, disengage from the locking groove 31.

[0032] In this embodiment, the docking plate 2 is placed horizontally, and the positioning block 3 is vertically inserted into the evenly distributed fastening holes 21 on the docking plate 2. At this time, the limiting component 32 of the positioning block 3 is in its natural state: the limiting plate 34 in the telescopic groove 33 extends to the inside of the locking groove 31 under the elastic force of the limiting telescopic spring 35, forming a limiting posture of upward retraction and downward extension.

[0033] Specifically, the limiting component 32 is disposed on one side of the top of the locking groove 31 and extends into the locking groove 31. The limiting component 32 includes a telescopic groove 33 disposed on one side of the top of the locking groove 31. A limiting plate 34 is installed in the telescopic groove 33. A plurality of limiting telescopic springs 35 are installed between the bottom of the limiting plate 34 and the bottom of the telescopic groove 33. The limiting plate 34 is limited within the telescopic groove 33.

[0034] Specifically, the bottom outer side of the L-shaped block 43 is provided with a locking telescopic groove 441, a locking block 44 is installed in the locking telescopic groove 441, a compression spring 442 is provided between the bottom of the locking block 44 and the bottom of the locking telescopic groove 441, and a matching locking block limiting strip 443 and locking block limiting frame 444 are provided at the bottom edge of the locking block 44 and the opening of the locking telescopic groove 441.

[0035] Specifically, the fixed block 41 has compression grooves 411 at both the upper and lower ends, a limiting frame 412 at the opening of the compression groove 411, a limiting strip 421 matching the limiting frame 412 at the bottom edge of the hand block 42, and a pressing spring 45 between the bottom of the hand block 42 and the bottom of the compression groove 411.

[0036] Specifically, the unlocking component 5 includes a groove 51 on one side of the fixed block 41, an unlocking block 52 is provided in the groove 51, and an unlocking spring 53 is provided between the bottom of the unlocking block 52 and the bottom of the groove 51. The unlocking block 52 moves in the groove 51, and the moving distance matches the length of the limiting component 32 set in the locking groove 31.

[0037] Specifically, hand rings 46 are installed on the two hand blocks 42, and the two hand blocks 42 are pressed synchronously onto the fixed block 41 through the hand rings 46.

[0038] In this embodiment, take the fastening component 4, hold the hand rings 46 of the upper and lower hand holding blocks 42 with both hands, align the fixing block 41 with the edge of the docking plate 2, and ensure that the side of the fixing block 41 closest to the docking plate 2 faces the positioning block 3.

[0039] Specifically, pressing the hand ring 46 causes the hand block 42 to move into the compression groove 411 of the fixed block 41. The limiting strip 421 at the bottom of the hand block 42 slides along the limiting frame 412 at the opening of the compression groove to prevent displacement. The pressing spring 45 in the compression groove 411 is compressed and stores energy.

[0040] Specifically, the fixed block 41 is pushed synchronously so that the L-shaped block 43 extends into the locking groove 31: the locking block 44 at the bottom of the L-shaped block 43 first contacts the inner wall of the locking groove 31, and under the action of the thrust, it compresses the compression spring 442 in the locking telescopic groove 441 until the locking block 44 is completely inserted into the locking groove 31.

[0041] Specifically, when the spring 45 is pressed back to its original position, the hand block 42 is pushed outward. At the same time, the locking block 44 is ejected under the elastic force of the compression spring 442 and its bottom is locked into the slot of the locking groove 31. At this time, the limiting plate 34 is kept in a downward state under the action of the limiting extension spring 35, and it is pressed just above the locking block 44 to form a double lock.

[0042] In this embodiment, the connecting discs 1 at the top and bottom are aligned with the top and bottom surfaces of the connecting disc 2, respectively, to ensure that the mounting holes of the connecting discs 1 are aligned with the center holes of the positioning blocks 3, thus completing the overall assembly.

[0043] In this embodiment, the disassembly process includes:

[0044] Press the unlocking block 52 in the groove 51 on one side of the fixing block 41 with your finger: the unlocking block 52 moves downward against the elastic force of the unlocking spring 53, and the moving distance is consistent with the length of the limiting plate 34 extending into the locking groove 31. Its lower end pushes the limiting plate 34 upward to compress the limiting extension spring 35 until the limiting plate 34 completely exits above the locking block 44, thus releasing the limiting lock.

[0045] Specifically, hold the hand ring 46 with both hands and pull the hand block 42 outward: the hand block 42 drives the L-shaped block 43 to move outward, the locking block 44 is squeezed by the inner wall of the locking groove 31, and after compressing the compression spring 442, it retracts into the locking telescopic groove 441; continue to pull the hand ring 46 until the L-shaped block 43 is completely disengaged from the locking groove 31, and remove the fastening component 4.

[0046] Specifically, remove the positioning blocks 3 from the fastening holes 21 of the docking plate 2 one by one, and finally separate the upper and lower connecting plates 1 from the docking plate 2 to complete the overall disassembly.

[0047] In this embodiment, disassembly and assembly can be completed manually by pressing the unlocking block and pulling the hand ring without the need for tools such as wrenches and screwdrivers. The disassembly and assembly time of a single coupling is shortened compared to traditional bolt-connected couplings, making it particularly suitable for equipment scenarios that require frequent maintenance or replacement.

[0048] In this embodiment, the locking block 44 is secured to the locking groove by a compression spring, and the limiting plate 34 is prevented from detaching by a limiting telescopic spring, effectively preventing the fastening components from loosening due to vibration during equipment operation;

[0049] Specifically, the hand ring 46 ensures that the upper and lower hand blocks 42 move synchronously, avoids the displacement of the positioning block caused by uneven force on the locking block on one side, and ensures the coaxiality of the connecting plate 1 and the docking plate 2.

[0050] In this embodiment, the limiting strip 421 of the handheld block 42 and the limiting frame 412 of the compression groove 411, and the limiting strip 443 of the locking block 44 and the limiting frame 444 of the locking telescopic groove 441 can prevent the parts from disengaging during operation, thus avoiding the loss of parts or equipment jamming.

[0051] Specifically, the springs of each component are made of stainless steel, which has a long fatigue life and meets the requirements of long-term, high-frequency disassembly and assembly.

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release coupling, characterized in that: It includes connecting discs (1) at the top and bottom ends, and a mating disc (2) is provided between the two connecting discs (1). The mating disc (2) is provided with a plurality of evenly spaced fastening holes (21). A positioning block (3) is installed in each of the plurality of fastening holes (21). A fastening component (4) is also provided on the positioning block (3). The positioning block (3) is inserted into the fastening hole (21). The positioning block (3) has locking grooves (31) at both ends. A limiting component (32) is provided on one side of the top of the locking groove (31). The fastening component (4) is installed in the locking groove (31) at both ends. The fastening component (4) includes a fixing block (41), with hand-held blocks (42) installed at the upper and lower ends of the fixing block (41). An L-shaped block (43) extends from one side of the hand-held block (42). The L-shaped blocks (43) at both ends are symmetrically arranged, and a locking block (44) is installed on the bottom side of the L-shaped block (43). The locking block (44) is locked in the locking groove (31), and the limiting component (32) is placed above the locking block (44). The fixing block (41) is also provided with an unlocking component (5) on the side near the docking plate (2). The fixing block (41) is close to the edge of the docking plate (2). When the unlocking component (5) is pressed into the fixing block (41), the limiting component (32) retracts, and the hand-held blocks (42) at both ends, together with the locking block (44), disengage from the locking groove (31).

2. The quick-release coupling according to claim 1, characterized in that: The limiting component (32) is disposed on the top side of the locking groove (31) and extends into the locking groove (31). The limiting component (32) includes a telescopic groove (33) disposed on the top side of the locking groove (31). A limiting plate (34) is installed in the telescopic groove (33). A plurality of limiting telescopic springs (35) are installed between the bottom of the limiting plate (34) and the bottom of the telescopic groove (33). The limiting plate (34) is limited within the telescopic groove (33).

3. A quick-release coupling according to claim 1, characterized in that: The L-shaped block (43) has a locking telescopic groove (441) on its outer bottom. The locking block (44) is installed in the locking telescopic groove (441). A compression spring (442) is provided between the bottom of the locking block (44) and the bottom of the locking telescopic groove (441). A matching locking block limiting strip (443) and locking block limiting frame (444) are provided at the bottom edge of the locking block (44) and the opening of the locking telescopic groove (441).

4. A quick-release coupling according to claim 1, characterized in that: The fixed block (41) has compression grooves (411) at both the top and bottom ends. A limiting frame (412) is provided at the opening of the compression groove (411). The bottom edge of the hand block (42) is provided with a limiting strip (421) that matches the limiting frame (412). A pressing spring (45) is provided between the bottom of the hand block (42) and the bottom of the compression groove (411).

5. A quick-release coupling according to claim 1, characterized in that: The unlocking component (5) includes a groove (51) on one side of the fixed block (41), an unlocking block (52) is provided in the groove (51), and an unlocking spring (53) is provided between the bottom of the unlocking block (52) and the bottom of the groove (51). The unlocking block (52) moves in the groove (51), and the moving distance matches the length of the limiting component (32) provided in the locking groove (31).

6. A quick-release coupling according to claim 1, characterized in that: Hand rings (46) are installed on the hand blocks (42) at both ends, and the hand blocks (42) at both ends press synchronously onto the fixed block (41) through the hand rings (46).

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