Bidirectional ratchet wheel cylinder shaft quick release

Abstract

The utility model discloses a two-way ratchet wheel cylinder shaft quick release which comprises a hub core shaft and a two-way ratchet wheel wrench, the hub core shaft is composed of a first segment core shaft and a second segment core shaft, and the ends, close to each other, of the first segment core shaft and the second segment core shaft are provided with a threaded rod and a threaded groove respectively. The first segmented mandrel and the second segmented mandrel are in threaded connection through the threaded rod and the threaded groove, the bidirectional ratchet wrench is fixedly connected to the end, away from the second segmented mandrel, of the first segmented mandrel, and the bidirectional ratchet wrench applies force to the first segmented mandrel from top to bottom all the time and can drive the first segmented mandrel to rotate bidirectionally. According to the utility model, the bidirectional ratchet wrench is arranged, so that the force applied to the first segmented mandrel is maximum, the first segmented mandrel is convenient to screw, the physical power is saved, the clockwise rotation or anticlockwise rotation of the first segmented mandrel can be switched, the hub mandrel is convenient to mount or dismount, and the use convenience is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle accessories, in particular to a bidirectional ratchet barrel shaft quick release. Background Art

[0002] The quick-release thru-axle of a bicycle is mainly used to quickly connect and disconnect the wheel from the frame (or the fork on the frame), supporting the hub in the center of the wheel to bear the weight and maintain smooth operation during riding.

[0003] After searching, Chinese patent announcement number: CN212445045U discloses a quick-release structure of a handle and a barrel shaft, which includes a handle and a barrel shaft, one end of the handle is equipped with a connecting pin, one end of the barrel shaft is provided with a slot that cooperates with the connecting pin, one side of the connecting pin is provided with at least one externally protruding steel ball, and the inner wall of the slot is provided with an annular groove that cooperates with the externally protruding steel ball.

[0004] The above technical solution facilitates the disassembly and assembly of the barrel shaft by applying force through the handle. However, when the barrel shaft is disassembled and assembled during use, the handle needs to be rotated in a circle for multiple circles. The handle is more labor-saving when applying force from top to bottom, but more labor-intensive when applying force from bottom to top, resulting in inconvenient operation and physical labor consumption. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a bidirectional ratchet barrel axle quick release, aiming to solve the problem that the existing barrel axle quick release needs to make multiple circular rotations of the handle when in use, which is more laborious when the handle applies force from bottom to top, resulting in inconvenient operation and physical labor consumption.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The two-way ratchet shaft quick release comprises a hub shaft and a two-way ratchet wrench, wherein the hub shaft consists of a first segmented shaft and a second segmented shaft, the ends of the first segmented shaft and the second segmented shaft being close to each other are respectively provided with a threaded rod and a threaded groove, the first segmented shaft and the second segmented shaft are threadedly connected via the threaded rod and the threaded groove, the two-way ratchet wrench is fixedly connected to the end of the first segmented shaft away from the second segmented shaft, the force direction of the two-way ratchet wrench on the first segmented shaft is always from top to bottom and can drive the first segmented shaft to rotate in both directions.

[0010] Preferably, the bidirectional ratchet wrench includes a force application rod, a receiving cavity is provided at one end of the force application rod, a cylindrical member is arranged in the receiving cavity, a connecting column is fixedly connected to one end of the cylindrical member, a plug-in groove is provided at the end of the first segmented core shaft away from the second segmented core shaft, the connecting column is fixedly connected to the plug-in groove, and a ratchet pawl mechanism is provided between the cylindrical member and the force application rod.

[0011] Preferably, the ratchet and pawl mechanism includes a torsion ratchet fixedly sleeved on the outside of the cylindrical member and a pawl arranged at the bottom of the torsion ratchet, both ends of the pawl are separately meshed with the torsion ratchet, an adjusting rod is provided at the bottom of the pawl, a protrusion is provided on the outer wall of the adjusting rod, the bottom of the pawl is adapted to the protrusion, a receiving hole is provided on the adjusting rod at the protrusion, a push pin is movably inserted in the receiving hole, an elastic member is fixedly connected between the bottom of the push pin and the bottom end of the inner wall of the receiving hole, the top end of the push pin abuts against one end of the bottom of the pawl, a through hole is provided on the force applying rod for the adjusting rod to pass through, one end of the adjusting rod passes through the through hole and is fixedly connected to a direction lever.

[0012] Preferably, a lever insert is provided between the cylindrical member and the adjusting rod, a first limiting groove is provided in an annular manner on the outer circumferential wall of the cylindrical member, a second limiting groove is provided on the protruding portion of the adjusting rod, one end of the lever insert is inserted into the first limiting groove, and the other end is inserted into the second limiting groove.

[0013] Preferably, a positioning groove is provided at the opening of the accommodating cavity, a ratchet baffle is installed in the positioning groove, and a through hole for the connecting column to pass through is provided on the ratchet baffle.

[0014] Preferably, a spring ring is arranged on the side of the ratchet baffle away from the torque ratchet, a slot for the spring ring to be inserted into is provided on the inner wall of the accommodating cavity, and the spring ring is pressed against one side of the ratchet baffle.

[0015] Preferably, a limiting ring and a fixing sleeve are respectively fixedly mounted on the outer sides of the ends of the first segmented mandrel and the second segmented mandrel, and the first mandrel gasket and the second mandrel gasket are respectively connected to the sides close to each other, and the contact surfaces of the first mandrel gasket and the second mandrel gasket with the frame are provided with anti-slip grooves.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a two-way ratchet wrench which is fixed to one end of the first segmented spindle. The two-way ratchet wrench can always apply force to the first segmented spindle from top to bottom, so that the force applied to the first segmented spindle is maximized, which is convenient for twisting the first segmented spindle and saves physical strength. The utility model can also switch the clockwise rotation or counterclockwise rotation of the first segmented spindle, which is convenient for installation or removal of the hub spindle and is highly convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the bidirectional ratchet barrel shaft quick release;

[0020] Figure 2 It is a schematic diagram of the bidirectional ratchet shaft quick-release disassembly structure;

[0021] Figure 3 It is a schematic diagram of the disassembly structure of a two-way ratchet wrench;

[0022] Figure 4 is a schematic diagram of the force rod structure;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of a bidirectional ratchet wrench;

[0024] Figure 6 It is a schematic diagram of the coordination structure of the torque ratchet, pawl and adjusting rod.

[0025] In the figure: 1. hub spindle; 11. first segmented spindle; 12. second segmented spindle; 2. limiting ring; 3. first spindle gasket; 4. fixing sleeve; 5. second spindle gasket; 6. two-way ratchet wrench; 61. force rod; 611. accommodating chamber; 612. through hole; 613. positioning groove; 614. slot; 62. cylindrical member; 621. connecting column; 622. torque ratchet; 63. pawl; 64. direction lever; 65. adjusting rod; 651. protrusion; 66. ejector pin; 661. elastic member; 67. lever insert; 68. ratchet stopper; 69. spring ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-Figure 6The present embodiment provides a bidirectional ratchet barrel shaft quick release, including a hub spindle 1 and a bidirectional ratchet wrench 6. The hub spindle 1 is composed of a first segmented spindle 11 and a second segmented spindle 12. The first segmented spindle 11 and the second segmented spindle 12 are respectively provided with a threaded rod and a thread groove at one end thereof, and the first segmented spindle 11 and the second segmented spindle 12 are threadedly connected through the threaded rod and the thread groove, and are used for installation or removal of the hub spindle 1. The bidirectional ratchet wrench 6 is fixedly connected to the end of the first segmented spindle 11 away from the second segmented spindle 12. The bidirectional ratchet wrench 6 is connected to the first segmented spindle 11 and the second segmented spindle 12. The force direction of a segmented spindle 11 is always from top to bottom and can drive the first segmented spindle 11 to rotate in both directions. When tightening or loosening the first segmented spindle 11 and the second segmented spindle 12 through the two-way ratchet wrench 6, the two-way ratchet wrench 6 can always apply force to the first segmented spindle 11 from top to bottom, so that the force applied to the first segmented spindle 11 is maximized, which is convenient for the twisting of the first segmented spindle 11 and saves physical strength. It is also possible to switch the clockwise rotation or counterclockwise rotation of the first segmented spindle 11, which is convenient for the installation or disassembly of the hub spindle 1 and is highly convenient to use.

[0029] In this embodiment, if Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the bidirectional ratchet wrench 6 includes a force application rod 61, one end of the force application rod 61 is provided with a receiving chamber 611, a cylindrical member 62 is arranged in the receiving chamber 611, one end of the cylindrical member 62 is fixedly connected with a connecting column 621, an end of the first segmented core shaft 11 away from the second segmented core shaft 12 is provided with a plug-in groove, the connecting column 621 is fixedly connected in the plug-in groove, a ratchet pawl mechanism is arranged between the cylindrical member 62 and the force application rod 61, the ratchet pawl mechanism includes a torque ratchet 622 fixedly sleeved on the outer side of the cylindrical member 62 and a pawl 63 arranged at the bottom of the torque ratchet 622, both ends of the pawl 63 are separately engaged with the torque ratchet 622, and the bottom of the pawl 63 is provided with a An adjusting rod 65 is arranged, and a protrusion 651 is arranged on the outer wall of the adjusting rod 65. The bottom of the pawl 63 is adapted to the protrusion 651. A receiving hole is opened on the adjusting rod 65 at the protrusion 651, and a top pin 66 is movably inserted in the receiving hole. An elastic member 661 is fixedly connected between the bottom of the top pin 66 and the bottom end of the inner wall of the receiving hole. The elastic member 661 is preferably a spring. The top end of the top pin 66 abuts against one end of the bottom of the pawl 63. A through hole 612 for the adjusting rod 65 to pass through is opened on the force rod 61. One end of the adjusting rod 65 passes through the through hole 612 and is fixedly connected to the direction lever 64. When in use, the protrusion 651 of the adjusting rod 65 abuts against the pawl The pawl 63 is pushed by the elastic member 661 to mesh with the torsion ratchet 622. At this time, when the force rod 61 rotates clockwise, the pawl 63 transmits power to the connecting column 621 as the torsion ratchet 622 rotates. The connecting column 621 drives the first segmented mandrel 11 to rotate, so that the first segmented mandrel 11 is tightened. The force direction of the force rod 61 is from top to bottom. When the force rod 61 reaches the bottom, the force rod 61 is rotated counterclockwise, and the pawl 63 pushes the ejector pin 66 to compress the elastic member 661, so that the pawl 63 cannot mesh with the torsion ratchet 622 smoothly, thereby preventing reverse transmission, so that the force rod 61 can be rotated again. When the lever 65 is turned upward, during this process, the connecting column 621 will not rotate, thereby ensuring that the direction of force application is always from top to bottom. The adjusting rod 65 is driven to rotate by the rotating direction lever 64, and the protrusion 651 of the adjusting rod 65 is pressed against the other end of the pawl 63, so that when the force rod 61 is rotated counterclockwise, the first segmented core shaft 11 is driven to rotate in the opposite direction. When the force rod 61 reaches the bottom, the force rod 61 is rotated clockwise, and the pawl 63 and the torque ratchet 622 cannot be smoothly engaged, so that the force rod 61 can be rotated upward again, which is convenient for the force operation when the barrel shaft is quickly disassembled, and effectively saves physical strength. This is the working principle of the ratchet wrench in the prior art and will not be elaborated here.

[0030] In this embodiment, the cross-section of the connecting column 621 and the plug-in slot is a polygonal structure, such as a square, pentagon, hexagon, etc. The connecting column 621 can be fixed in a limited position when inserted into the plug-in slot. The connecting column 621 can be fixed in the plug-in slot by gluing, screwing, etc.

[0031] In this embodiment, if Figure 3 and Figure 5 As shown, a lever insert 67 is provided between the cylindrical member 62 and the adjusting rod 65, a first limiting groove is provided in an annular manner on the outer circumferential wall of the cylindrical member 62, a second limiting groove is provided on the protruding portion 651 of the adjusting rod 65, one end of the lever insert 67 is inserted into the first limiting groove, and the other end is inserted into the second limiting groove, the position of the lever insert 67 is limited by the first limiting groove and the second limiting groove, and the position of the cylindrical member 62 is limited by the lever insert 67, which can prevent the cylindrical member 62 from detaching from the force applying rod 61.

[0032] In this embodiment, if Figure 3 , Figure 4 and Figure 5 As shown, a positioning groove 613 is provided at the opening of the accommodating chamber 611, and a ratchet baffle 68 is installed in the positioning groove 613. A through hole is provided on the ratchet baffle 68 for the connecting column 621 to pass through, and a spring ring 69 is provided on the side of the ratchet baffle 68 away from the torque ratchet 622. A slot 614 for the spring ring 69 to be inserted into is provided on the inner wall of the accommodating chamber 611, and the spring ring 69 is pressed against one side of the ratchet baffle 68. The spring ring 69 is used to fix and lock the ratchet baffle 68, and the ratchet baffle 68 is used to block the torque ratchet 622 to prevent the cylindrical member 62 from detaching from the force applying rod 61, and the opening of the accommodating chamber 611 can be covered to prevent dust and ensure reliability in use.

[0033] In this embodiment, if Figure 1 and Figure 2 As shown, the outer sides of the ends of the first segmented spindle 11 and the second segmented spindle 12 that are away from each other are respectively fixedly sleeved with a limiting ring 2 and a fixing sleeve 4, and the sides of the limiting ring 2 and the fixing sleeve 4 that are close to each other are respectively connected with a first spindle gasket 3 and a second spindle gasket 5, and the contact surfaces of the first spindle gasket 3 and the second spindle gasket 5 with the frame are both provided with anti-slip grooves. After the hub spindle 1 is tightened, the first spindle gasket 3 and the second spindle gasket 5 are pressed against the frame fork rod to increase friction, ensure the firmness of the pressing with the frame fork rod, and avoid loosening during riding.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. Bidirectional ratchet shaft quick release, characterized by: The invention comprises a hub spindle (1) and a bidirectional ratchet wrench (6), wherein the hub spindle (1) is composed of a first segmented spindle (11) and a second segmented spindle (12), the ends of the first segmented spindle (11) and the second segmented spindle (12) being close to each other are respectively provided with a threaded rod and a threaded groove, the first segmented spindle (11) and the second segmented spindle (12) are threadedly connected via the threaded rod and the threaded groove, the bidirectional ratchet wrench (6) is fixedly connected to the end of the first segmented spindle (11) away from the second segmented spindle (12), the force direction of the bidirectional ratchet wrench (6) on the first segmented spindle (11) is always from top to bottom and can drive the first segmented spindle (11) to rotate in both directions.

2. The bidirectional ratchet shaft quick release according to claim 1, characterized in that: The bidirectional ratchet wrench (6) comprises a force application rod (61), one end of which is provided with a receiving cavity (611), a cylindrical member (62) is arranged in the receiving cavity (611), one end of the cylindrical member (62) is fixedly connected with a connecting column (621), an end of the first segmented core shaft (11) away from the second segmented core shaft (12) is provided with a plug-in groove, the connecting column (621) is fixedly connected in the plug-in groove, and a ratchet pawl mechanism is arranged between the cylindrical member (62) and the force application rod (61).

3. The bidirectional ratchet shaft quick release according to claim 2, characterized in that: The ratchet and pawl mechanism comprises a torsion ratchet (622) fixedly sleeved on the outside of the cylindrical member (62) and a pawl (63) arranged at the bottom of the torsion ratchet (622), the two ends of the pawl (63) are separately engaged with the torsion ratchet (622), an adjusting rod (65) is arranged at the bottom of the pawl (63), a protrusion (651) is arranged on the outer wall of the adjusting rod (65), the bottom of the pawl (63) is adapted to the protrusion (651), and the adjusting rod (65) is arranged on the outer wall of the adjusting rod (65). A receiving hole is provided at the protruding portion (651), a push pin (66) is movably inserted in the receiving hole, an elastic member (661) is fixedly connected between the bottom of the push pin (66) and the bottom end of the inner wall of the receiving hole, the top end of the push pin (66) abuts against one end of the bottom of the pawl (63), the force application rod (61) is provided with a through hole (612) for the adjustment rod (65) to pass through, one end of the adjustment rod (65) passes through the through hole (612) and is fixedly connected to the direction lever (64).

4. The bidirectional ratchet shaft quick release according to claim 3, characterized in that: A lever insert (67) is provided between the cylindrical member (62) and the adjusting rod (65); a first limiting groove is provided in an annular manner on the outer circumferential wall of the cylindrical member (62); a second limiting groove is provided on the protruding portion (651) of the adjusting rod (65); one end of the lever insert (67) is inserted into the first limiting groove, and the other end is inserted into the second limiting groove.

5. The bidirectional ratchet shaft quick release according to claim 2, characterized in that: A positioning groove (613) is provided at the opening of the accommodating cavity (611), a ratchet baffle (68) is installed in the positioning groove (613), and a through hole for the connecting column (621) to pass through is provided on the ratchet baffle (68).

6. The bidirectional ratchet shaft quick release according to claim 5, characterized in that: A spring ring (69) is provided on the side of the ratchet stopper (68) away from the torque ratchet (622), and a slot (614) for the spring ring (69) to be inserted is provided on the inner wall of the accommodating cavity (611), and the spring ring (69) is pressed against one side of the ratchet stopper (68).

7. The bidirectional ratchet shaft quick release according to claim 1, characterized in that: A limiting ring (2) and a fixing sleeve (4) are fixedly sleeved on the outer sides of the ends of the first segmented mandrel (11) and the second segmented mandrel (12) that are separated from each other, respectively; a first mandrel gasket (3) and a second mandrel gasket (5) are connected to the sides of the limiting ring (2) and the fixing sleeve (4) that are close to each other, respectively; and the contact surfaces of the first mandrel gasket (3) and the second mandrel gasket (5) with the frame are both provided with anti-slip grooves.

Images