Quick locking device

Abstract

The application discloses a quick-locking device, including a main housing, a retainer, a retainer, and balls. Both the retainer and the retainer are located within the inner cavity of the main housing. The retainer is connected to the main housing. The retainer has a spindle mounting channel at its center to accommodate the spindle, and ball mounting holes on its outer periphery. The ball mounting holes communicate with the spindle mounting channel, and the balls are fitted into the ball mounting holes. The spindle is located inside the balls, and the retainer is outside. The retainer has radial and axial locking wedges that limit the movement of the balls. The device locks when the balls are pressed against the retainer, and unlocks when the balls disengage from the retainer. The retainer, with its radial and axial locking wedges, works in conjunction with the balls to simultaneously lock and unlock the spindle radially and axially. This invention is simple to use, allows for quick locking and unlocking, is easy to disassemble, facilitates the locking and replacement of the locked components, and improves efficiency.

Description

Technical Field

[0001] This invention relates to the field of locking, and more specifically to a quick locking device. Background Technology

[0002] Winding line onto a spool for storage and retrieval is a common practice. In fishing, the line on the spool needs to be wound onto the reel, and depending on the type of fish being fished, the line on the reel needs to be wound back onto the spool to change the line. During both reeling and unreeling, the spool needs to be locked in place to ensure it rotates with the spindle, enabling the reel to be wound and unloaded. In existing technology, the spool is locked to the spindle using two positioning sleeves and a locking nut, as shown in Chinese patent CN 212414404 U. One positioning sleeve is fixed relative to the spindle, while the other can move relative to the spindle and is locked in place by the locking nut, thus fixing the spool between the two positioning sleeves. The structure has the following defects: (1) It requires locking with a locking nut. The locking nut is difficult to disassemble and assemble from the spindle, especially for general-purpose winding devices with small and large reels, where the spindle is long and the locking nut operation is more difficult. (2) In order to fit the locking nut, the spindle needs to have a threaded section, while other components do not require threads. A single spindle needs to be divided into a non-threaded section and a threaded section, which is complicated to process; or a dual spindle structure can be adopted, with one spindle without threads and the other with threads, which are connected to form the spindle. The dual spindles will affect the strength of the overall structure. Summary of the Invention

[0003] To address the problems of cumbersome winding reel locking operations and the need for a threaded section on the spindle in existing technologies, this application provides a quick locking device that is simple and convenient to operate and eliminates the need for a threaded section on the spindle.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] The quick-locking device includes a main housing, a retainer, a retainer, and balls. The retainer and retainer are both located in the inner cavity of the main housing. The retainer is connected to the main housing. The retainer has a spindle mounting channel at its center to accommodate the spindle and a ball mounting hole on its outer periphery. The ball mounting hole communicates with the spindle mounting channel. The balls are assembled in the ball mounting hole. The inner side of the balls is the spindle, and the outer side is the retainer. The retainer has a radial locking wedge angle and an axial locking wedge angle to limit the movement of the balls. The device locks when the balls are pressed against the retainer. The device unlocks when the balls are disengaged from the retainer.

[0006] As a preferred embodiment, the quick-locking device further includes a retainer shifting mechanism, which includes a sleeve, a pull head, a button, and a pressure spring. The sleeve and the pull head are fitted onto the retainer, and the pull head is fixed to the retainer. The sleeve and the pull head are each frustum-shaped, and the two frustum-shaped portions form a wedge-shaped mounting portion. The button head is wedge-shaped and is inserted into the wedge-shaped mounting portion. A pressure spring is provided between the sleeve and the retainer.

[0007] As a preferred embodiment, the pull head is provided with an upper guide groove for the button, the sleeve is provided with a lower guide groove for the button, and the upper and lower ends of the button head are respectively provided with an upper slider and a lower slider. The upper slider is placed in the upper guide groove for the button, and the lower slider is placed in the lower guide groove for the button.

[0008] As a preferred embodiment, a locking protrusion is provided at the bottom of the inner cavity of the main housing, and a locking groove is provided on the outer wall of the bottom of the anti-reverse ring. The locking protrusion and the locking groove cooperate to fix the anti-reverse ring to the main housing.

[0009] As a preferred embodiment, the inner wall of the main housing is provided with a limiting groove, and the outer wall of the sleeve is provided with a limiting protrusion that mates with the limiting groove. More preferably, a limiting protrusion is provided below the button guide groove of the sleeve, and a sleeve limiting through groove is provided on the main housing, with the limiting protrusion placed in the sleeve limiting through groove.

[0010] As a preferred embodiment, the upper part of the main housing is provided with a button limiting groove, the head of the button is inserted into the inner cavity of the main housing through the button limiting groove, and the tail of the button is located outside the main housing.

[0011] As a preferred embodiment, the lower end of the main housing is connected to the outer cover, and a thrust spring is provided between the main housing and the outer cover. The front end of the outer cover has a tapered clamping part. More preferably, the tapered clamping part is provided with anti-slip texture to increase friction.

[0012] As a preferred embodiment, the outer wall of the main housing is provided with a protruding ridge, which limits the upper end of the outer cover.

[0013] The beneficial effects of the present invention are: (1) The anti-reverse ring has a radial locking wedge angle and an axial locking wedge angle, which cooperate with the ball to lock and unlock the spindle. When the ball is pressed against the anti-reverse ring and the spindle at the same time, the axial and radial locking wedge angles of the anti-reverse ring lock the spindle, so that the quick-lock structure can only move forward on the spindle and cannot rotate or move backward, thus playing a locking role. When the ball disengages from the anti-reverse ring, it releases the locking effect on the spindle, and the quick-lock locking device easily disengages from the spindle. The present invention is simple to use and can quickly lock and unlock. Disassembly is simple, which facilitates the locking and replacement of the locked parts and improves efficiency. (2) The front end of the outer cover has a conical pressing part. The conical structure can be used to fix locked parts with different hole diameters and has a wide range of applications. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of a quick-locking device.

[0016] Figure 2 This is a front view of the quick-locking device (locked state).

[0017] Figure 3 yes Figure 2 Schematic diagram of the AA section.

[0018] Figure 4 yes Figure 2 Schematic diagram of the cross-section of BB.

[0019] Figure 5 This is a cross-sectional diagram of the quick-locking device in the unlocked state.

[0020] Figure 6 This is a schematic diagram of the retainer structure.

[0021] Figure 7 This is a schematic diagram of the slider structure.

[0022] Figure 8 and Figure 9 This is a schematic diagram of the button structure.

[0023] Figure 10 and Figure 11 Schematic diagram of the main shell structure.

[0024] Figure 12 Schematic diagram of the outer casing structure.

[0025] Figure 13 Schematic diagram of the three-dimensional structure of the anti-reverse ring.

[0026] Figure 14 Top view of the anti-reverse ring.

[0027] Figure 15 Diagram of the card sleeve structure.

[0028] In the diagram, 1 is the spindle, 2 is the retainer, 21 is the spindle mounting channel, 22 is the ball bearing mounting hole, 23 is the boss, 3 is the pull head, 31 is the pull head center hole, 32 is the frustum, 33 is the upper guide groove of the button, 4 is the button, 41 is the button head, 42 is the button tail, 43 is the upper slider, 44 is the lower slide, 5 is the main housing, 51 is the center hole, 52 is the locking protrusion, 53 is the limiting groove, 54 is the button limiting through groove, 55 is the sleeve limiting through groove, 56 is the protruding ridge, 6 is the outer cover, 61 is the tapered clamping part, 62 is the anti-slip texture, 7 is the thrust spring, 8 is the anti-reverse ring, 81 is the center hole, 82 is the groove, 83 is the ball bearing actuating part, 84 is the axial locking wedge angle, 85 is the radial locking wedge angle. 9. Sleeve, 91. Center hole, 92. Frustum, 93. Key lower guide groove, 94. Limiting protrusion, 95. Limiting protrusion, 10. Ball bearing, 11. Type E retaining ring, 12. Pressure spring, 13. Washer, 14. Wedge-shaped mounting part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] In the description of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] This invention's quick-locking device can be used to lock and limit components such as cable reels onto a main shaft 1. A positioning sleeve, fixed relative to the main shaft 1, is provided at one end of the locked component, while the quick-locking device of this invention is used at the other end of the locked component for adjustment and limitation, allowing it to move relative to the main shaft 1. The cable reel and similar structures are known in the prior art and are not shown in the figures; only the cooperation between the quick-locking device and the main shaft 1 is illustrated. Figures 1-5As shown, the quick-locking device includes a main housing 5, a retainer ring 8, a retainer 2, and a ball bearing 10. The retainer ring 8 and the retainer 2 are both located in the inner cavity of the main housing 5. The retainer ring 8 is connected to the main housing 5. The retainer 2 has a spindle mounting channel 21 at its center to accommodate the spindle 1, and a ball bearing mounting hole 22 on its outer periphery. The ball bearing mounting hole 22 is connected to the spindle mounting channel 21. The ball bearing 10 is assembled in the ball bearing mounting hole 22. The inner side of the ball bearing 10 is the spindle 1, and the outer side is the retainer ring 8. This structure allows the assembled ball bearing 10 to contact the spindle 1 for locking. The ball bearing action part 83 on the anti-reverse ring 8 has a radial locking wedge angle 85 and an axial locking wedge angle 84 that limit the movement of the ball bearing 10. When the ball bearing 10 is pressed against the anti-reverse ring 8, the ball bearing 10 simultaneously adheres to both the anti-reverse ring 8 and the main shaft 1. Both the radial locking wedge angle 85 and the axial locking wedge angle 84 serve as limiting angles, locking the device. In this structure, the anti-reverse ring 8, the retainer 2, the ball bearing 10, and the main shaft 1 form an overrunning clutch structure. The quick-locking structure can only move forward on the main shaft 1 and cannot rotate or retract, thus achieving a locking function. When the ball bearing 10 disengages from the anti-reverse ring 8, the radial locking wedge angle 85 and the axial locking wedge angle 84 are released from their limiting positions, the device unlocks, and the quick-locking device easily disengages from the main shaft 1. The anti-reverse ring 8 of this invention has a reasonable structural design, which can simultaneously lock and unlock the main shaft radially and axially by cooperating with the ball bearing 10.

[0032] To quickly lock or unlock the ball bearing 10 by engaging or disengaging from the anti-lock ring 8, the quick-locking device also includes a retainer 2 shifting mechanism. This retainer 2 shifting mechanism includes a sleeve 9, a pull head 3, a button 4, and a pressure spring 12. The sleeve 9 and pull head 3 are fitted onto the retainer 2. The pull head 3 has a central hole 31. The retainer 2 has a retainer spring mounting groove 24 on its head. An E-type retainer spring 11 is installed in the retainer spring mounting groove 24, securing the pull head 3 and the retainer 2 together. The sleeve 9 has a frustum 92, and the pull head 3 has a frustum 32. The frustum 32 and frustum 92 together form a wedge-shaped mounting portion 14. The button head 41 is wedge-shaped and is inserted into the wedge-shaped mounting portion 14. A pressure spring 12 is located between the sleeve 9 and the retainer 2. The retainer 2 has a boss 23 on which the pressure spring 12 is mounted. More preferably, a washer 13 is provided on the boss 23, and the pressure spring 12 acts on the ball 10 through the washer 13. In the locked state, the button 4 is in the free state, and the button head 41 is far away from the retainer 2 and the spindle 1. When the button 4 is pressed, the button head 41 is pushed towards the retainer 2 and the spindle 1, the distance between the pull head 3 and the collet 9 increases, the gap of the wedge-shaped mounting part 14 increases, and the pull head 3 pulls up the retainer 2, so that the ball 10 in the retainer 2 separates from the anti-reverse ring 8, realizing quick unlocking.

[0033] See Figure 3 , Figure 7 , Figure 8 , Figure 9 and Figure 15The pull head 3 has an upper guide groove 33 for the button, and the sleeve 9 has a lower guide groove 93 for the button. The upper and lower ends of the button head 41 are respectively provided with an upper slider 43 and a lower slider 44. The upper slider 43 is placed in the upper guide groove 33, and the lower slider 44 is placed in the lower guide groove 93. The structure of slider and guide groove is adopted for three reasons: first, it facilitates quick positioning of the button 4 with the pull head 3 and sleeve 9 during assembly; second, it prevents deviation when the button 4 pushes the pull head 3 upward, resulting in more precise control; and third, when the button 4 is released, the device enters a locking state. Under the rebound action of the pressure spring 12, the upper slider 43 and the lower slider 44 of the button 4 will automatically reset along the upper guide groove 33 of the pull head 3 and the lower guide groove 93 of the sleeve 9.

[0034] The main shell 5 structure is as follows Figure 11 and Figure 12 As shown, to facilitate the assembly and positioning of the anti-reverse ring 8, the retaining sleeve 9, the button 4, and the main housing 5, a retaining protrusion 52 is provided at the bottom of the inner cavity of the main housing 5, and a limiting groove 53, a retaining sleeve limiting through groove 55, and a button limiting through groove 54 are provided on the side wall of the inner cavity of the main housing 5. Figure 13 As shown, the bottom outer wall of the anti-reverse ring 8 is provided with a groove 82, and the locking protrusion 52 on the main housing 5 cooperates with the groove 82 on the anti-reverse ring 8 to fix the anti-reverse ring 8 to the main housing 5. Figure 15 As shown, the outer wall of the sleeve 9 is provided with a limiting protrusion 94 that mates with the limiting groove 53, and a limiting protrusion 95 is provided below the button guide groove 93 of the sleeve 9. The limiting protrusion 94 and the limiting protrusion 95 on the sleeve 9 mate with the limiting groove 53 and the limiting through groove 55 on the main housing 5, respectively. When the sleeve 9 is assembled inside the main housing 5, the two are positioned and limited. The structure of the button 4 is as follows. Figure 8 and Figure 9 As shown, the buttons 4 are symmetrically arranged, so two button limiting slots 54 are symmetrically provided on the upper part of the main housing 5. The button head 41 is inserted into the inner cavity of the main housing 5 through the button limiting slot 54, and the button tail 42 is located outside the main housing 5.

[0035] To limit the locking of components such as the reel, a pressing part for limiting the reel can be directly provided at the front end of the main housing 5. In this embodiment, an outer cover 6 is provided at the front end of the main housing 5, and the front end of the outer cover 6 has a conical pressing part 61. More preferably, the conical pressing part 61 is provided with anti-slip texture 62 to increase friction. To facilitate the connection between the outer cover 6 and the main housing 5, a protruding rib 56 is provided on the outer wall of the main housing 5, and the protruding rib 56 limits the upper end of the outer cover 6. A thrust spring 7 is provided between the main housing 5 and the outer cover 6. The thrust spring 7 applies force to the main housing 5, and the clamping force on the reel can be increased by pressing the main housing 5. The outer cover 6 provides more space for the operation of the quick locking device and is suitable for locking operations of more reels of different specifications. At the same time, the structure of the outer cover 6 can also provide more space for personalized design elements of the quick locking device, such as designing hollow patterns, graphic patterns, etc. on the outer cover to meet the personalized design needs of different customers.

[0036] This invention will be described using the locking of a winding reel mounted on the main shaft 1 as an example. After the winding reel is mounted on the main shaft 1, the quick-locking device button 4 of this invention is pressed (e.g., ...). Figure 5 As shown), the device is in the unlocked state at this time. The ball bearing 10 in the retainer 2 disengages from the anti-reverse ring 8. The spindle 1 is inserted into the center hole of the outer cover 6, the center hole 51 of the main housing 5, and the center hole 81 of the anti-reverse ring 8 in sequence. It is then inserted into the spindle mounting channel 21 and exits from one end. The quick-locking device moves freely. After adjusting the position, releasing the button causes the button 4 to return to the free state due to the rebound force of the pressure spring 12 (as shown). Figure 3 As shown). Do not press button 4 (i.e., button 4 is in a free state, as shown). Figure 3 As shown, the quick-locking device can also be mounted on the spindle 1. When the device is in the locked state, it can move forward along the spindle 1 but cannot move backward or rotate. Comparatively, pressing button 4 during the installation of the quick-locking device on the spindle 1 is more effortless. After being mounted in the appropriate position, button 4 is in the free state. At this time, the pressure spring 12 keeps the ball bearing 10 pressed against the anti-reverse ring 8, and the anti-reverse ring 8 functions, preventing the quick-locking device from rotating or moving backward, thus achieving a locking effect. When it is necessary to remove the winding reel from the spindle 1 or adjust the locking degree, pressing button 4 unlocks the device, allowing it to move backward for adjustment or easy removal from the spindle. The invention has a reasonable structural design; pressing button 4 changes the state of the quick-locking device during the entire adjustment and replacement process, enabling unlocking and locking, bringing it closer to or away from the locked part. The operation is quick and simple. The entire device has low requirements for the roughness, straightness, roundness, diameter, hardness, and material of the spindle, and has a wide range of adaptability, capable of locking and unlocking.

Claims

1. A quick-locking device, characterized in that: The assembly includes a main housing (5), a retainer (8), a retainer (2), and balls (10). The retainer (8) and retainer (2) are both located in the inner cavity of the main housing (5). The retainer (8) is connected to the main housing (5). The retainer (2) has a spindle mounting channel (21) at its center to accommodate the spindle (1) and a ball mounting hole (22) on its outer periphery. The ball mounting hole (22) is connected to the spindle mounting channel (21). The balls (10) are assembled in the ball mounting hole (22). The inner side of the balls (10) is the spindle (1), and the outer side is the retainer (8). The retainer (8) has a radial locking wedge angle (85) and an axial locking wedge angle (84) to limit the movement of the balls (10). When the anti-reverse ring (8) is pressed, the device is locked; when the ball (10) is disengaged from the anti-reverse ring (8), the device is unlocked. The quick locking device also includes a retainer shifting mechanism. The retainer shifting mechanism includes a sleeve (9), a pull head (3), a button (4), and a pressure spring (12). The sleeve (9) and the pull head (3) are fitted on the retainer (2). The pull head (3) is fixed to the retainer (2). The sleeve (9) and the pull head (3) are respectively provided with a frustum. The frustum (32) and the frustum (92) form a wedge-shaped mounting part (14). The button head (41) is wedge-shaped. The button head (41) is inserted into the wedge-shaped mounting part (14). A pressure spring (12) is provided between the sleeve (9) and the retainer (2).

2. The quick-locking device according to claim 1, characterized in that: A locking protrusion (52) is provided at the bottom of the inner cavity of the main housing (5), and a locking groove (82) is provided on the bottom outer wall of the anti-reverse ring (8). The locking protrusion (52) and the locking groove (82) cooperate to fix the anti-reverse ring (8) to the main housing (5).

3. The quick-locking device according to claim 1, characterized in that: The pull head (3) is provided with an upper guide groove (33) for the button, and the sleeve (9) is provided with a lower guide groove (93) for the button. The upper end face and the lower end face of the button head (41) are respectively provided with an upper slider (43) and a lower slider (44). The upper slider (43) is placed in the upper guide groove (33) for the button, and the lower slider (44) is placed in the lower guide groove (93) for the button.

4. The quick-locking device according to claim 1, characterized in that: The inner wall of the main housing (5) is provided with a limiting groove (53), and the outer wall of the sleeve (9) is provided with a limiting protrusion (94) that cooperates with the limiting groove (53).

5. The quick-locking device according to claim 1, characterized in that: The card sleeve (9) has a limiting protrusion (95) below the button guide groove (93), and the main housing (5) has a card sleeve limiting through groove (55), with the limiting protrusion (95) placed in the card sleeve limiting through groove (55).

6. The quick-locking device according to claim 1, characterized in that: The upper part of the main housing (5) is provided with a button limiting groove (54), the button head (41) is inserted into the inner cavity of the main housing (5) through the button limiting groove (54), and the button tail (42) is located outside the main housing (5).

7. The quick-locking device according to any one of claims 1-6, characterized in that: The lower end of the main housing (5) is connected to the outer cover (6). A thrust spring (7) is provided between the main housing (5) and the outer cover (6). The front end of the outer cover (6) has a conical pressing part (61).

8. The quick-locking device according to claim 7, characterized in that: The conical clamping part (61) is provided with anti-slip texture (62) to increase friction.

9. The quick-locking device according to claim 8, characterized in that: The outer wall of the main housing (5) is provided with a protruding rib (56), which limits the upper end of the outer cover (6).

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