A two-way counting skipping rope

Abstract

The present invention provides a bidirectional counting skipping rope, comprising a handle housing, a connecting rope rotating shaft, a counter and a bidirectional transmission mechanism, wherein the connecting rope rotating shaft transmits the transmission to the counter through the bidirectional transmission mechanism; the bidirectional transmission mechanism comprises a first gear set consisting of a first helical gear and a first spur gear, a second gear set consisting of a second helical gear and a second spur gear, and a third gear set consisting of a front driving gear and a rear driving gear; the rotating shaft of the first gear set is connected to the connecting rope rotating shaft and drives the first helical gear to rotate, and the first spur gear can rotate around the rotating shaft of the first gear set; the first helical gear meshes with the second helical gear and pushes the second gear set to move axially, so that the second spur gear meshes with the front driving gear or the first spur gear; the rear driving gear meshes with the first spur gear, a rotating disk is arranged at one end of the counter, and the third gear set transmits the transmission to the rotating disk. The bidirectional transmission mechanism has small resistance and is silent during transmission, and enables the present invention to realize the function of bidirectional counting.

Description

Technical Field

[0001] The invention relates to the technical field of rope skipping, and more specifically to a bidirectional counting rope skipping. Background Art

[0002] In the prior art, most skipping ropes with counting functions use mechanical transmission to count, usually a counting handle and an ordinary handle are connected to the two ends of the rope respectively, and a counter that can only count in one direction is set in the counting handle. Forward jumping or reverse jumping is determined by the hand holding the counting handle. Only when the counting handle drives the counter forward during skipping can the counting be effective. If the counting handle drives the counter in the reverse direction, the counting cannot be effective.

[0003] At present, many consumers require that the skipping rope has a two-way counting function, that is, no matter which hand holds the counting handle, the number of skipping ropes can be effectively recorded whether jumping forward or backward. In order to solve the problem of one-way counting, the applicant has proposed a Chinese patent with application number CN202021395002.2, which relies on a reversing gear set and a two-way ratchet to achieve the two-way counting function. However, the two-way ratchet has a large resistance during transmission and is unstable during high-speed operation. For users who can jump more than 200 times per minute, the ratchet transmission is likely to affect the user's skipping speed or miss the number of skipping ropes. In addition, the ratchet will make a clicking noise, which is a poor user experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a bidirectional counting skipping rope, which does not include a ratchet mechanism, but instead adopts a new transmission mechanism to transmit the counter. When driven forward or reverse, the transmission direction of the new transmission mechanism remains unchanged, and the function of bidirectional counting can be realized. Moreover, the new transmission mechanism has small resistance during transmission, can transmit stably even at high speed, and is basically silent.

[0005] The technical solution of the present invention is to provide a bidirectional counting skipping rope, comprising a handle housing, a rope connecting shaft is arranged at one end of the handle housing, the rope connecting shaft is used to connect the rope and can rotate with the swing of the rope, a counter and a bidirectional transmission mechanism are arranged inside the handle housing, and the rope connecting shaft transmits the counter through the bidirectional transmission mechanism; the bidirectional transmission mechanism comprises a first gear group consisting of a first helical gear and a first spur gear arranged coaxially, a second gear group consisting of a second helical gear and a second spur gear arranged coaxially and rotating synchronously, and a third gear group consisting of a front driving gear and a rear driving gear arranged coaxially and rotating synchronously; the rotating shaft of the first gear group is connected to the rope connecting shaft in transmission, the rotating shaft of the first gear group is used to drive the first helical gear to rotate, and the first spur gear can rotate around the rotating shaft of the first gear group; the first helical gear meshes with the second helical gear for transmission, and the second gear group can move axially to make the second spur gear mesh with the front driving gear for transmission or the second spur gear meshes with the first spur gear for transmission; the rear driving gear meshes with the first spur gear, and a driving block is arranged on the outer end face of the front driving gear, and a rotating disk is arranged at one end of the counter, and the front driving gear transmits the rotating disk through the driving block.

[0006] Compared with the prior art, the bidirectional counting skipping rope of the present invention has the following advantages:

[0007] When the connecting rope shaft rotates in the forward direction, the connecting rope shaft drives the shaft of the first gear group to rotate in the same direction, so that the first bevel gear drives the second bevel gear to move in the direction of the counter, and the second spur gear engages with the front driving gear, and the driving block transmits the rotation of the turntable in the same direction to make the counter count. According to the characteristics of the gear meshing transmission, the direction of rotation of the second gear group is opposite to the direction of rotation of the shaft of the first gear group, and the direction of rotation of the third gear group is opposite to the direction of rotation of the second gear group, so that the direction of rotation of the turntable and the connecting rope shaft are the same as the forward rotation. In this process, the rear driving gear engages with the first spur gear for transmission, and the rotation of the first spur gear does not affect the counting of the counter.

[0008] When the connecting rope shaft rotates in the opposite direction, the connecting rope shaft drives the shaft of the first gear group to rotate in the same direction, so that the first bevel gear drives the second bevel gear to move in the direction of the connecting rope shaft, the second spur gear meshes with the first spur gear for transmission, the first spur gear meshes with the rear driving gear for transmission, and the driving block transmits the turntable in the same direction. According to the characteristics of the gear meshing transmission, the direction of rotation of the second gear group is opposite to the direction of rotation of the shaft of the first gear group, the direction of rotation of the first spur gear is opposite to the direction of rotation of the second gear group, and the direction of rotation of the third gear group is opposite to the direction of rotation of the first spur gear, so that the direction of rotation of the turntable is opposite to the direction of rotation of the connecting rope shaft, that is, the turntable still rotates forward, so that the counter can count normally.

[0009] In this way, no matter whether the connecting rope shaft is driven forward and rotates forward or driven reversely and rotates reversely, the transmission direction of the two-way transmission mechanism remains unchanged, and the counter can be transmitted in the forward direction so that the counter can count normally. The two-way counting skipping rope of the present invention can realize the function of two-way counting.

[0010] Moreover, in the bidirectional counting skipping rope of the present invention, the bidirectional transmission mechanism adopts a gear set transmission and does not include a ratchet mechanism. The gear set has small resistance during transmission and can also transmit stably during high-speed operation and is basically silent.

[0011] Preferably, the first helical gear and the second helical gear are both 60-degree helical gears. With this structure, the helical angles of the first helical gear and the second helical gear are large, which is conducive to smooth transmission and noise reduction, and the axial force of the first helical gear driving the second helical gear to move axially is also large.

[0012] Preferably, the driving block can limit the axial position of the second spur gear; when the second spur gear is axially limited by the driving block, the second spur gear meshes with the front drive gear, the second bevel gear meshes with the first bevel gear, and the second bevel gear and the second spur gear do not contact the first spur gear and the rear drive gear. With this structure, when the second spur gear meshes with the front drive gear for transmission, the driving block axially limits the second spur gear, and the structure is simple, which can ensure that the first bevel gear continuously and stably transmits the second bevel gear, and can also prevent the second gear set from directly contacting the first spur gear and the rear drive gear to interfere with the rotation of the front drive gear.

[0013] Preferably, the rear end of the connecting rope shaft extends into the handle housing and cooperates with one end of the shaft of the first gear set in transmission. The connecting rope shaft can rotate on the handle housing and drive the shaft of the first gear set to rotate synchronously. The rear end face of the connecting rope shaft can axially limit the second bevel gear. When the second bevel gear is axially limited by the rear end face of the connecting rope shaft, the second bevel gear meshes with the first bevel gear, and the second spur gear meshes with the first spur gear, and neither the second bevel gear nor the second spur gear contacts the front drive gear or the rear drive gear. With this structure, when the second spur gear transmits the transmission to the rear drive gear through the first spur gear, the rear end face of the connecting rope shaft axially limits the second bevel gear. The structure is simple, which can ensure that the first bevel gear continuously and stably transmits the transmission to the second bevel gear, and can also prevent the second gear set from directly contacting the front drive gear and the rear drive gear and interfering with the rotation of the rear drive gear.

[0014] Preferably, the tooth surface widths of the second bevel gear, the second spur gear, the front drive gear and the rear drive gear are all set to length units, the tooth surface width of the first bevel gear is set to 3 length units, the tooth surface width of the first spur gear is set to be greater than the sum of the tooth surface width of the second spur gear and the tooth surface width of the rear drive gear, the sum of the distance between the second bevel gear and the second spur gear and the tooth surface width of the second bevel gear is set to be greater than the tooth surface width of the first spur gear but less than the sum of the tooth surface width of the first spur gear and length units, the sum of the distance between the front drive gear and the rear drive gear and the tooth surface width of the rear drive gear is set to be greater than the tooth surface width of the first spur gear and less than the distance between the second bevel gear and the second spur gear. With this structure, the tooth surface width of the first spur gear is greater than the sum of the tooth surface width of the second spur gear and the tooth surface width of the rear drive gear. Therefore, when the second spur gear and the rear drive gear are both meshed with the first spur gear, the second spur gear and the rear drive gear will not directly contact and interfere with each other; the sum of the distance between the second helical gear and the second spur gear and the tooth surface width of the second helical gear is greater than the tooth surface width of the first spur gear. Therefore, when the second spur gear is meshed with the front drive gear, the second spur gear and the first spur gear will not directly contact and interfere with each other; the sum of the distance between the second helical gear and the second spur gear and the tooth surface width of the second helical gear is less than the tooth surface width of the first spur gear and 1 unit of length. and, when both the second spur gear and the rear drive gear are meshed with the first spur gear, all the tooth surfaces of the second spur gear are meshed with the first spur gear and will not directly contact with the front drive gear to cause interference; if the sum of the distance between the front drive gear and the rear drive gear and the tooth surface width of the rear drive gear is greater than the tooth surface width of the first spur gear, the front drive gear will not directly contact with the first spur gear to cause interference; if the sum of the distance between the front drive gear and the rear drive gear and the tooth surface width of the rear drive gear is less than the distance between the second bevel gear and the second spur gear, when the second spur gear is meshed with the front drive gear, the second bevel gear will not directly contact with the rear drive gear to cause interference. That is, when the connecting rope shaft drives the shaft of the first gear set to reverse and rotate, so that the second spur gear switches to transmit to the front drive gear or transmits to the rear drive gear through the first spur gear, the second spur gear will not mesh with the third gear set and the first spur gear at the same time.

[0015] Preferably, a connecting hole is provided at the rear end of the connecting rope rotating shaft, a straight-line limiting groove is provided in the connecting hole, and one end of the rotating shaft of the first gear set is provided with a straight-line limiting end, which is matched and connected in the limiting groove. With this structure, the connecting rope rotating shaft can synchronously drive the rotating shaft of the first gear set through the matched limiting groove and the limiting end, which has a simple structure and is easy to assemble.

[0016] Preferably, a first gear shaft mounting column is provided in the handle housing, a curved groove is provided at the top of the first gear shaft mounting column, the other end of the rotating shaft of the first gear set is provided in the curved groove at the top of the first gear shaft mounting column, and the rotating shaft of the first gear set can rotate in the curved groove at the top of the first gear shaft mounting column. With this structure, one end of the rotating shaft of the first gear set is fitted and connected in the limiting groove, and the other end is provided in the curved groove at the top of the first gear shaft mounting column and can rotate in the curved groove at the top of the first gear shaft mounting column, so that the rotating shaft of the first gear set can rotate synchronously with the connecting rope rotating shaft, and the structure is simple and easy to assemble.

[0017] Preferably, a second gear shaft mounting column is provided in the handle housing, a curved groove is provided at the top of the second gear shaft mounting column, the second bevel gear and the second spur gear are respectively located at both ends of the rotating shaft of the second gear set, the middle portion of the rotating shaft of the second gear set is provided in the curved groove at the top of the second gear shaft mounting column, and the rotating shaft of the second gear set can rotate and move axially in the curved groove at the top of the second gear shaft mounting column. With this structure, the rotating shaft of the second gear set can conveniently rotate and move axially in the curved groove at the top of the second gear shaft mounting column, the structure is simple, and it is easy to assemble.

[0018] Preferably, at least one third gear shaft mounting column is provided in the handle housing, and the top of each third gear shaft mounting column is provided with a curved groove, and the rotating shaft of the third gear set is provided in the curved groove at the top of the third gear shaft mounting column, and the rotating shaft of the third gear set can rotate in the curved groove at the top of the third gear shaft mounting column. With this structure, the third gear set can rotate in the curved groove at the top of the third gear shaft mounting column, and the structure is simple and easy to assemble.

[0019] Preferably, the driving block is configured as a cross-shaped convex strip, and a transmission block is provided on the turntable. The driving block is abutted and connected to the turntable, and the transmission block is located in the gap between the cross-shaped convex strips of the driving block and is driven by the convex strips of the driving block to rotate. With this structure, the driving block has a firm structure, and when the driving block rotates, it can stably push the transmission block to rotate in the same direction, thereby driving the turntable to rotate, that is, a bidirectional transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the exploded structure of the bidirectional counting skipping rope of the present invention.

[0021] Figure 2 for Figure 1 Schematic diagram of the disassembly of the assembly structure between the central connecting rope shaft and the shaft of the first gear set.

[0022] Figure 3 It is a structural schematic diagram of the bidirectional transmission mechanism in the bidirectional counting rope skipping of the present invention when the rope connecting shaft rotates forward.

[0023] Figure 4It is a structural schematic diagram of the bidirectional transmission mechanism in the bidirectional counting skipping rope of the present invention when the rope connecting shaft is reversed.

[0024] As shown in the figure: 1. handle housing, 1-1. rope shaft hole, 1-2. housing limit plate, 1-3. first gear shaft mounting column, 1-4. second gear shaft mounting column, 1-5. third gear shaft mounting column, 1-6. viewing window, 1-7. counter mounting position, 2. rope shaft, 2-1. rope threading hole, 2-2. limit plate, 2-3. connecting hole, 2-4. limit groove, 3. first gear set, 3-1. first bevel gear, 3-2. first spur gear, 3-3. limit end, 5. second gear set, 5-1. second bevel gear, 5-2. second spur gear, 6. third gear set, 6-1. front drive gear, 6-2. rear drive gear, 6-3. drive block, 7. counter, 7-1. turntable, 7-2. transmission block. DETAILED DESCRIPTION

[0025] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0026] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0027] It should also be understood that the terms "comprises", "having", "includes", "comprising", when used in this specification, indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof. In addition, when a statement such as "...at least one" appears after a list of listed features, it modifies the entire listed features rather than modifying the individual elements in the list.

[0028] Embodiment 1:

[0029] like Figure 1As shown in , the bidirectional counting skipping rope of the present invention includes a handle housing 1, which is composed of an upper housing and a lower housing assembled from top to bottom. A rope connecting shaft hole 1-1 is provided at one end of the handle housing 1, and a housing limiting piece 1-2 opposite to the rope connecting shaft hole 1-1 is provided inside the handle housing 1, and a limiting space is formed between the housing limiting piece 1-2 and the handle housing 1. A rope connecting shaft 2 is installed in the rope connecting shaft hole 1-1, and the front end of the rope connecting shaft 2 is located outside the handle housing 1 and is provided with a rope threading hole 2-1 for connecting a rope, and the rear end of the rope connecting shaft 2 is provided with a limiting piece 2-2, and the limiting piece 2-2 is limited in the limiting space in the handle housing 1. The rope is connected to the rope threading hole 2-1, and the rope connecting shaft 2 can rotate with the swing of the rope.

[0030] A counter mounting position 1-7 is provided on the inner side of the handle housing 1, and a counter 7 is provided on the counter mounting position 1-7. A bidirectional transmission mechanism is also provided inside the handle housing 1. The connecting rope shaft 2 transmits the counter 7 through the bidirectional transmission mechanism so that the counter 7 counts. A visual window 1-6 for reading the indication of the counter 7 is also provided on the handle housing 1.

[0031] like Figure 3 and Figure 4 As shown in , the bidirectional transmission mechanism includes a first gear set 3, a second gear set 5 and a third gear set 6 arranged in the same direction. The first gear set 3 is directly driven by the rope connecting shaft 2, the second gear set 5 is driven by the first gear set 3, and the third gear set 6 is driven by the first gear set 3 or the second gear set 5 according to the direction of the rope connecting shaft 2. The counter 7 is driven by the third gear set 6 to count.

[0032] The first gear set 3 is composed of a first helical gear 3-1 and a first straight gear 3-2 which are coaxially arranged. The center of the first helical gear 3-1 is integrally provided with a rotating shaft of the first gear set 3, such as Figure 2As shown in , the rear end of the connecting rope rotating shaft 2 is provided with a connecting hole 2-3 on the outside of the limiting piece 2-2, and a straight-line limiting groove 2-4 is provided in the connecting hole 2-3. One end of the rotating shaft of the first gear set 3 is provided with a straight-line limiting end 3-3, and the limiting end 3-3 is matched and connected in the limiting groove 2-4, that is, the rotating shaft of the first gear set 3 is transmission-connected with the connecting rope rotating shaft 2, and the connecting rope rotating shaft 2 can drive the rotating shaft of the first gear set 3 and the first bevel gear 3-1 to rotate in the same direction. The other end of the rotating shaft of the first gear set 3 passes through the center of the first straight gear 3-2, and the first straight gear 3-2 is matched with the rotating shaft of the first gear set 3 in clearance, so that the first straight gear 3-2 can rotate relative to the rotating shaft of the first gear set 3. A first gear shaft mounting column 1-3 is arranged in the handle housing 1, and a curved groove is arranged at the top end of the first gear shaft mounting column 1-3. The other end of the rotating shaft of the first gear group 3 is arranged in the curved groove at the top end of the first gear shaft mounting column 1-3. When one end of the rotating shaft of the first gear group 3 is driven by the connecting rope rotating shaft 2, the other end of the rotating shaft of the first gear group 3 rotates in the curved groove at the top end of the first gear shaft mounting column 1-3.

[0033] The second gear set 5 is composed of a second bevel gear 5-1 and a second spur gear 5-2 which are coaxially arranged and rotate synchronously. The second bevel gear 5-1, the second spur gear 5-2 and the rotating shaft of the second gear set 5 which passes through the centers of the second bevel gear 5-1 and the second spur gear 5-2 are integrally arranged. The second bevel gear 5-1 and the second spur gear 5-2 are respectively located at the two ends of the rotating shaft of the second gear set 5. A second gear shaft mounting column 1-4 is arranged in the handle housing 1. A curved groove is arranged at the top of the second gear shaft mounting column 1-4. The middle part of the rotating shaft of the second gear set 5 is arranged in the curved groove at the top of the second gear shaft mounting column 1-4. The first bevel gear 3-1 meshes with the second bevel gear 5-1 to drive the second gear set 5 to rotate as a whole. When the second gear set 5 rotates as a whole, the rotating shaft of the second gear set 5 rotates in the curved groove at the top of the second gear shaft mounting column 1-4. The first bevel gear 3-1 and the second bevel gear 5-1 are both bevel gears with a helical angle of 60 degrees. When the first bevel gear 3-1 drives the second bevel gear 5-1 to rotate, the rotating shaft of the second gear set 5 will also move axially in the curved groove at the top of the second gear shaft mounting column 1-4.

[0034] The third gear set 6 is composed of a front drive gear 6-1 and a rear drive gear 6-2 which are coaxially arranged and rotate synchronously. The front drive gear 6-1, the rear drive gear 6-2 and the rotating shaft of the third gear set 6 which passes through the centers of the front drive gear 6-1 and the rear drive gear 6-2 are arranged in an integrated manner. A driving block 6-3 is also arranged on the outer end face of the front drive gear 6-1. The driving block 6-3 is arranged as a cross-shaped convex strip. Two third gear shaft mounting columns 1-5 are arranged in the handle housing 1. The tops of the third gear shaft mounting columns 1-5 are arranged with curved grooves. The rotating shaft of the third gear set 6 is arranged in the curved grooves at the tops of the two third gear shaft mounting columns 1-5, and the rotating shaft of the third gear set 6 can rotate in the curved grooves at the tops of the third gear shaft mounting columns 1-5. The rear drive gear 6-2 is meshed with the first straight gear 3-2.

[0035] A turntable 7-1 is provided at one end of the counter 7, and a transmission block 7-2 is provided on the turntable 7-1. The driving block 6-3 is abutted and connected to the turntable 7-1. The transmission block 7-2 is located in the gap position of the cross-shaped convex strips of the driving block 6-3. When the third gear set 6 rotates, the convex strips of the driving block 6-3 push the transmission block 7-2 to rotate synchronously, so that the turntable 7-1 rotates, driving the counter 7 to count.

[0036] The tooth surface widths of the second bevel gear 5-1, the second spur gear 5-2, the front drive gear 6-1 and the rear drive gear 6-2 are all set to 1 length unit, the tooth surface width of the first bevel gear 3-1 is set to 3 length units, the tooth surface width of the first spur gear 3-2 is set to 2.5 length units, the distance between the second bevel gear 5-1 and the second spur gear 5-2 is set to 3 length units, and the distance between the front drive gear 6-1 and the rear drive gear 6-2 is set to 1.3 length units. In this embodiment, 1 length unit is set to 2 mm.

[0037] When the connecting rope shaft 2 rotates in the forward direction, the connecting rope shaft 2 drives the shaft of the first gear set to rotate in the same direction, so that the first bevel gear 3-1 drives the second bevel gear 5-1 to rotate and move in the direction of the counter 7. Figure 3 As shown in , the second spur gear 5-2 meshes with the front drive gear 6-1, and the drive block 6-3 drives the turntable 7-1 in the same direction. According to the characteristics of the gear meshing transmission, the direction of the second gear set is opposite to the direction of the rotating shaft of the first gear set, and the direction of the third gear set is opposite to the direction of the second gear set. The direction of the turntable and the connecting rope shaft are both positively rotated, so that the counter 7 can count effectively. In this process, the rear drive gear 6-2 meshes with the first spur gear 3-2, but the rotation of the first spur gear 3-2 does not affect the counter count. At the same time, due to the aforementioned size setting, the second bevel gear 5-1 and the second spur gear 5-2 of the second gear set will not directly contact the first spur gear and the rear drive gear to interfere with the rotation of the front drive gear.

[0038] When the connecting rope rotating shaft 2 rotates in the opposite direction, the connecting rope rotating shaft 2 drives the rotating shaft of the first gear set to rotate in the same direction, so that the first bevel gear 3-1 drives the second bevel gear 5-1 to move in the direction of the connecting rope rotating shaft 2. Figure 4 As shown in , the second spur gear 5-2 meshes with the first spur gear 3-2 for transmission, and then the first spur gear 3-2 meshes with the rear drive gear 6-2 for transmission, and the drive block 6-3 transmits the same direction to the turntable 7-1. According to the characteristics of the gear meshing transmission, the direction of rotation of the second gear set is opposite to the direction of rotation of the shaft of the first gear set, the direction of rotation of the first spur gear is opposite to the direction of rotation of the second gear set, and the direction of rotation of the third gear set is opposite to the direction of rotation of the first spur gear, so that the direction of rotation of the turntable is opposite to the direction of rotation of the connecting rope shaft, that is, the turntable still rotates forward, so that the counter 7 can still count effectively. At the same time, due to the aforementioned size setting, the second bevel gear 5-1 and the second spur gear 5-2 of the second gear set will not directly contact the front drive gear and the rear drive gear of the third gear set to interfere with the rotation of the rear drive gear.

[0039] In this way, no matter whether the connecting rope shaft 2 is driven forward and rotates forward or driven reversely and rotates reversely, the transmission direction of the two-way transmission mechanism remains unchanged, and the counter 7 can be driven forward so that the counter 7 can count normally. That is, the two-way counting skipping rope of the present invention can realize the function of two-way counting.

[0040] In other embodiments, the first bevel gear 3-1 may be interference fit on the rotating shaft of the first gear set 3, or the first bevel gear 3-1 may be threaded and locked on the rotating shaft of the first gear set 3. Similarly, the second bevel gear 5-1 and the second spur gear 5-2 may also be interference fit on the rotating shaft of the second gear set 5.

[0041] The above are only specific embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should all be included in the protection scope of the claims of the present invention.

Claims

1. A bidirectional counting skipping rope, comprising a handle housing (1), one end of the handle housing (1) being provided with a rope connecting shaft (2), the rope connecting shaft (2) being used to connect a rope and being able to rotate as the rope is swung, a counter (7) and a bidirectional transmission mechanism being provided inside the handle housing (1), the rope connecting shaft (2) transmitting the counter (7) via the bidirectional transmission mechanism; characterized in that: The bidirectional transmission mechanism comprises a first gear set (3) consisting of a first bevel gear (3-1) and a first spur gear (3-2) which are coaxially arranged, a second gear set (5) consisting of a second bevel gear (5-1) and a second spur gear (5-2) which are coaxially arranged and rotate synchronously, and a third gear set (6) consisting of a front drive gear (6-1) and a rear drive gear (6-2) which are coaxially arranged and rotate synchronously; the rotating shaft of the first gear set (3) is transmission-connected with the connecting rope rotating shaft (2), the rotating shaft of the first gear set (3) is used to drive the first bevel gear (3-1) to rotate, and the first spur gear (3-2) can rotate around the first gear set ( The first bevel gear (3-1) is meshed with the second bevel gear (5-1) for transmission, and the second gear set (5) can move axially to make the second spur gear (5-2) mesh with the front drive gear (6-1) for transmission or the second spur gear (5-2) mesh with the first spur gear (3-2) for transmission; the rear drive gear (6-2) is meshed with the first spur gear (3-2), a driving block (6-3) is provided on the outer end surface of the front drive gear (6-1), a rotating disk (7-1) is provided at one end of the counter (7), and the front drive gear (6-1) transmits transmission to the rotating disk (7-1) through the driving block (6-3).

2. The bidirectional counting skipping rope according to claim 1, characterized in that: The first helical gear (3-1) and the second helical gear (5-1) are both helical gears with a helical angle of 60 degrees.

3. The bidirectional counting skipping rope according to claim 1, characterized in that: The driving block (6-3) can limit the axial position of the second spur gear (5-2); when the second spur gear (5-2) is axially limited by the driving block (6-3), the second spur gear (5-2) meshes with the front driving gear (6-1), the second bevel gear (5-1) meshes with the first bevel gear (3-1), and the second bevel gear (5-1) and the second spur gear (5-2) are not in contact with the first bevel gear (3-2) and the rear driving gear (6-2).

4. The bidirectional counting skipping rope according to claim 1, characterized in that: The rear end of the connecting rope rotating shaft (2) extends into the handle housing (1) and is in transmission cooperation with one end of the rotating shaft of the first gear set (3); the connecting rope rotating shaft (2) can rotate on the handle housing (1) and drive the rotating shaft of the first gear set (3) to rotate synchronously; the rear end face of the connecting rope rotating shaft (2) can axially limit the second bevel gear (5-1); when the second bevel gear (5-1) is axially limited by the rear end face of the connecting rope rotating shaft (2), the second bevel gear (5-1) meshes with the first bevel gear (3-1), the second spur gear (5-2) meshes with the first spur gear (3-2), and the second bevel gear (5-1) and the second spur gear (5-2) are not in contact with the front drive gear (6-1) and the rear drive gear (6-2).

5. The bidirectional counting skipping rope according to claim 3 or 4, characterized in that: The tooth surface widths of the second bevel gear (5-1), the second spur gear (5-2), the front drive gear (6-1) and the rear drive gear (6-2) are all set to 1 length unit, the tooth surface width of the first bevel gear (3-1) is set to 3 length units, the tooth surface width of the first spur gear (3-2) is set to be greater than the sum of the tooth surface width of the second spur gear (5-2) and the tooth surface width of the rear drive gear (6-2), the sum of the distance between the second bevel gear (5-1) and the second spur gear (5-2) and the tooth surface width of the second bevel gear (5-1) is set to be greater than the tooth surface width of the first spur gear (3-2) but less than the sum of the tooth surface width of the first spur gear (3-2) and 1 length unit, and the sum of the distance between the front drive gear (6-1) and the rear drive gear (6-2) and the tooth surface width of the rear drive gear (6-2) is set to be greater than the tooth surface width of the first spur gear (3-2) and less than the distance between the second bevel gear (5-1) and the second spur gear (5-2).

6. The bidirectional counting skipping rope according to claim 4, characterized in that: A connecting hole (2-3) is provided at the rear end of the connecting rope rotating shaft (2), a straight-line limiting groove (2-4) is provided in the connecting hole (2-3), and one end of the rotating shaft of the first gear set (3) is provided as a straight-line limiting end (3-3), and the limiting end (3-3) is matched and connected in the limiting groove (2-4).

7. The bidirectional counting skipping rope according to claim 4, characterized in that: A first gear shaft mounting column (1-3) is arranged in the handle housing (1), a curved groove is arranged at the top end of the first gear shaft mounting column (1-3), the other end of the rotating shaft of the first gear set (3) is arranged in the curved groove at the top end of the first gear shaft mounting column (1-3), and the rotating shaft of the first gear set (3) can rotate in the curved groove at the top end of the first gear shaft mounting column (1-3).

8. The bidirectional counting skipping rope according to claim 1, characterized in that: A second gear shaft mounting column (1-4) is arranged in the handle housing (1), a curved groove is arranged at the top end of the second gear shaft mounting column (1-4), a second bevel gear (5-1) and a second spur gear (5-2) are respectively located at two ends of the rotating shaft of the second gear set (5), a middle portion of the rotating shaft of the second gear set (5) is arranged in the curved groove at the top end of the second gear shaft mounting column (1-4), and the rotating shaft of the second gear set (5) can rotate and move axially in the curved groove at the top end of the second gear shaft mounting column (1-4).

9. The bidirectional counting skipping rope according to claim 1, characterized in that: At least one third gear shaft mounting column (1-5) is arranged in the handle housing (1), the top of each of the third gear shaft mounting columns (1-5) is provided with a curved groove, the rotating shaft of the third gear set (6) is arranged in the curved groove at the top of the third gear shaft mounting column (1-5), and the rotating shaft of the third gear set (6) can rotate in the curved groove at the top of the third gear shaft mounting column (1-5).

10. The bidirectional counting skipping rope according to claim 1, characterized in that: The driving block (6-3) is arranged as a cross-shaped convex strip, a transmission block (7-2) is arranged on the rotating disk (7-1), the driving block (6-3) is abuttingly connected to the rotating disk (7-1), the transmission block (7-2) is located in the gap position of the cross-shaped convex strip of the driving block (6-3) and is rotated by being pushed by the convex strip of the driving block (6-3).

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