A pulling device for waist resistance training

Abstract

The present invention relates to the technical field of fitness equipment. The present application discloses a pulling device for waist resistance training, comprising a hexagonal rod, a first connecting rod arranged at the bottom of the hexagonal rod, a second connecting rod arranged at the top of the hexagonal rod, a handle arranged at the top of the second connecting rod, a rotating disk fixedly installed at the bottom of the first connecting rod, an annular groove arranged at the top of the rotating disk located at the outside of the first connecting rod, and a ratchet arranged at the outside of the annular groove. The handle is pressed down and rotated. Since the hexagonal rod is inserted into the inside of the hexagonal matching tube in the initial state and the top of the hexagonal rod is kept flush with the top of the top cover, the top of the hexagonal rod after being pressed down is out of the matching state with the top cover, so that during the rotation of the handle, the adjusting device will be driven to rotate synchronously through the hexagonal rod. At this time, the resistance spring stores elastic force in the initial state, so that the resistance provided by the device is increased, the function of adjusting the resistance is achieved, the service life of the device is increased, and the use cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fitness equipment, and in particular to a pulling device for waist resistance training. Background Art

[0002] In order to improve waist strength, athletes will use a tension device specifically for waist training. The traditional tension device is composed of an elastic belt, one end of which is connected to the athlete's waist, and the other end of the belt is connected to the athlete's calf. The athlete maintains a forward stride posture, and the leg connected to the belt extends backward, thereby pulling the eyes and increasing the resistance of the belt to the waist, thereby achieving a training effect. This type of tension device for waist resistance training has the advantages of simple structure, easy use and low cost.

[0003] Although the existing tension device for waist resistance training has many advantages mentioned above, it still has certain limitations in actual use. The traditional elastic belt will cause the stiffness coefficient to decrease after long-term use, resulting in a decrease in resistance to the waist and a decrease in training effect. At this time, only a new elastic belt can be replaced, and the cost of use is relatively high. In addition, this force transmission belt is easy to tangle and is inconvenient to store, resulting in multiple belts being entangled with each other when taking it, making it difficult to take it. In this regard, the present application document proposes a tension device for waist resistance training, which aims to solve the above-mentioned problems. Summary of the invention

[0004] The present application proposes a tension device for waist resistance training, which has the advantages of adjustable elastic force and convenient storage without entanglement, and is used to solve the problem that traditional elastic belts can only be replaced once the stiffness coefficient is reduced and are easily entangled when stored.

[0005] To achieve the above purpose, the present application adopts the following technical solution: a pulling device for waist resistance training, comprising:

[0006] A top cover, a sleeve fixedly installed at the bottom of the top cover, a bolt located on the outside of the top of the top cover, an adjusting device movably sleeved on the outer surface of the sleeve, and a rotating device movably installed at a center position on the top of the adjusting device.

[0007] An outer shell, a connecting seat arranged on the inner wall of the outer shell near the top, a bearing seat arranged at the bottom of the inner cavity of the outer shell, side holes are arranged on both sides of the outer surface of the connecting seat, the outer surface of the bearing seat is provided with a tightening device through a bearing-connected movable sleeve, the outer surface of the tightening device is provided with two resistance bands, and the two resistance bands extend out from the two side holes arranged on the outer surface of the connecting seat respectively.

[0008] Specifically, the bolts and the connection seats are distributed in a circular array, and the bolts match the connection seats.

[0009] Further, the adjusting device includes an adjusting roller, a bottom hole is opened at the bottom of the adjusting roller, a groove is arranged on the outside of the adjusting roller, a first spring seat is arranged on the outside of the adjusting roller at the top and above the groove, a hexagonal matching tube is arranged at the bottom of the inner cavity of the adjusting roller at the outside of the bottom hole, and a reset spring is arranged at the bottom of the adjusting roller at the outside of the bottom hole and on the inside of the hexagonal matching tube.

[0010] Specifically, the bottom of the first spring seat is connected to the gathering device, the hexagonal matching tube is movably installed with the rotating device, and the rotating device extends through the bottom hole to the bottom of the adjusting drum, and the top of the reset spring is fixedly connected to the rotating device.

[0011] Furthermore, the rotating device includes a hexagonal rod, a first connecting rod arranged at the bottom of the hexagonal rod, a second connecting rod arranged at the top of the hexagonal rod, a handle is arranged at the top of the second connecting rod, a rotating disk is fixedly installed at the bottom of the first connecting rod, an annular groove is arranged at the top of the rotating disk at a position outside the first connecting rod, and a ratchet is arranged on the outside of the annular groove.

[0012] Furthermore, the cross-section of the hexagonal rod is hexagonal, and in the initial state, the hexagonal rod is inserted into the interior of the hexagonal matching tube, and the top of the hexagonal rod is kept flush with the top of the top cover, the bottom of the first connecting rod extends from the inside of the bottom hole, and the connection between the hexagonal rod and the second connecting rod is smoothly transitioned.

[0013] Furthermore, the focusing device includes a focusing drum, a bearing connecting seat is provided at the bottom of the focusing drum, and the bearing connecting seat is connected to the bearing seat through a bearing sleeve, a second spring seat is provided on the inner wall of the focusing drum, a resistance spring is fixedly provided on the top of the second spring seat, and the top of the resistance spring is connected to the bottom of the first spring seat, a circular hole is provided at the bottom of the inner cavity of the focusing drum, a connecting arm is provided on the inner wall of the circular hole near the top, a spring connecting shaft is fixedly installed on the top of the connecting arm near one end, and a locking rod is provided on the outer surface of the spring connecting shaft.

[0014] Furthermore, the number of the connecting arms is two and they are arranged in a centrally symmetrical manner.

[0015] Furthermore, the locking rod is located inside the annular groove, and when the spring connecting shaft stores elastic force, the locking rod is in a disengaged state from the ratchet teeth outside the annular groove.

[0016] This application has the following beneficial effects.

[0017] The device uses the deformation of the resistance spring to provide resistance during training. The release of the elastic force of the resistance spring can automatically contract the resistance band to achieve the effect of convenient storage, and the user can adjust the initial elastic force of the resistance spring according to their needs. In addition, once the resistance band becomes disconnected due to long-term use, the locking rod will expand outward under the action of centrifugal force, and contact and get stuck with the ratchet on the outside of the annular groove, preventing the device from directly hitting the human body and causing injury. By pressing the handle, the rotating device moves downward as a whole, and the ratchet on the outside of the annular groove will disengage from the locking rod and release the stuck state, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0019] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structural adjustment device of the present invention;

[0023] Figure 4 It is a cross-sectional view of the structural adjustment device of the present invention;

[0024] Figure 5 It is a schematic diagram of the structural rotating device of the present invention;

[0025] Figure 6 It is a schematic diagram of the structural convergence device of the present invention;

[0026] Figure 7 It is a cross-sectional view of the structural convergence device of the present invention;

[0027] Figure 8 The structure of the present invention Figure 7 Cross-sectional view in the A direction.

[0028] In the figure; 10, top cover; 11, sleeve; 12, bolt; 13, adjusting device; 131, adjusting roller; 132, bottom hole; 133, groove; 134, first spring seat; 135, hexagonal matching tube; 136, reset spring; 14, rotating device; 141, hexagonal rod; 142, first connecting rod; 143, second connecting rod; 144, handle; 145, rotating disk; 146, annular groove; 20, outer shell; 21, connecting seat; 22, bearing seat; 23, side hole; 24, closing device; 241, closing roller; 242, bearing connecting seat; 243, second spring seat; 244, resistance spring; 245, connecting arm; 246, spring connecting shaft; 247, locking rod; 25, resistance band. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] A pulling device for waist resistance training, comprising:

[0031] See also Figure 1-Figure 2 , a top cover 10, a sleeve 11 fixedly installed at the bottom of the top cover 10, a bolt 12 located at the outside of the top of the top cover 10, an adjusting device 13 movably sleeved on the outer surface of the sleeve 11, and a rotating device 14 movably installed at a center position on the top of the adjusting device 13.

[0032] The outer shell 20, a connecting seat 21 arranged on the inner wall of the outer shell 20 near the top, a bearing seat 22 arranged at the bottom of the inner cavity of the outer shell 20, side holes 23 are arranged on both sides of the outer surface of the connecting seat 21, and the outer surface of the bearing seat 22 is provided with a tightening device 24 through a bearing-connected movable sleeve, and the outer surface of the tightening device 24 is provided with two resistance bands 25, and the two resistance bands 25 extend from the two side holes 23 arranged on the outer surface of the connecting seat 21 respectively.

[0033] The bolts 12 and the connection seats 21 are distributed in a circular array, and the bolts 12 match the connection seats 21 .

[0034] See also Figure 3-Figure 4The adjusting device 13 includes an adjusting roller 131, a bottom hole 132 is opened at the bottom of the adjusting roller 131, a groove 133 is arranged on the outside of the adjusting roller 131, a first spring seat 134 is arranged on the outside of the adjusting roller 131 at the top and above the groove 133, a hexagonal matching tube 135 is arranged at the bottom of the inner cavity of the adjusting roller 131 at the outside of the bottom hole 132, and a reset spring 136 is arranged at the bottom of the adjusting roller 131 at the outside of the bottom hole 132 and inside the hexagonal matching tube 135.

[0035] The bottom of the first spring seat 134 is connected to the gathering device 24 , the hexagonal matching tube 135 is movably installed with the rotating device 14 , and the rotating device 14 extends through the bottom hole 132 to the bottom of the adjustment roller 131 , and the top of the return spring 136 is fixedly connected to the rotating device 14 .

[0036] See also Figure 5 The rotating device 14 includes a hexagonal rod 141, a first connecting rod 142 arranged at the bottom of the hexagonal rod 141, a second connecting rod 143 arranged at the top of the hexagonal rod 141, a handle 144 is arranged on the top of the second connecting rod 143, a rotating disk 145 is fixedly installed on the bottom of the first connecting rod 142, an annular groove 146 is arranged on the top of the rotating disk 145 at a position outside the first connecting rod 142, and a ratchet is arranged on the outside of the annular groove 146.

[0037] See also Figure 2 , Figure 4-Figure 5 and Figure 7 The cross section of the hexagonal rod 141 is hexagonal. The hexagonal rod 141 is initially inserted into the hexagonal matching tube 135, and the top of the hexagonal rod 141 is flush with the top of the top cover 10. The bottom of the first connecting rod 142 extends from the bottom hole 132. The connection between the hexagonal rod 141 and the second connecting rod 143 is smoothly transitioned. When the user feels that the resistance provided by the device is small during training, the handle 144 can be pressed down and rotated before use. Since the hexagonal rod 141 is initially inserted into the hexagonal matching tube 135 and the top of the hexagonal rod 141 is flush with the top of the top cover 10, the bottom of the first connecting rod 142 extends from the bottom hole 132. The connection between the hexagonal rod 141 and the second connecting rod 143 is smoothly transitioned. When the user feels that the resistance provided by the device is small during training, the handle 144 can be pressed down and rotated before use. Keeping it flush, the top of the hexagonal rod 141 after being pressed down is out of engagement with the top cover 10, so that during the rotation of the handle 144, the adjusting device 13 will be driven to rotate synchronously through the hexagonal rod 141. At this time, the resistance spring 244 stores elastic force in the initial state, so that the resistance provided by the device is increased, thereby achieving the function of adjusting the resistance. Once the resistance of traditional equipment decreases, it can only be replaced with a new elastic belt, which leads to the problem of excessively high cost of use. The device involved in the present application document avoids this problem very well, thereby increasing the service life of the device and reducing the cost of use.

[0038] After completing the adjustment, the user releases the handle 144, and the elastic force of the reset spring 136 resets the rotating device 14. At this time, the top of the hexagonal rod 141 is flush with the top of the top cover 10 again, so that the hexagonal rod 141 can no longer rotate. At this time, the adjusting device 13 is in a locked state and cannot rotate either, thereby avoiding the problem that the adjusting device 13 rotates to release the elastic force of the resistance spring 244 in advance, resulting in a decrease in training resistance, thereby improving the stability of the device during operation.

[0039] See also Figure 2-Figure 5 The focusing device 24 includes a focusing roller 241, a bearing connection seat 242 is arranged at the bottom of the focusing roller 241, and the bearing connection seat 242 is connected with the bearing seat 22 through a bearing sleeve, a second spring seat 243 is arranged on the inner wall of the focusing roller 241, a resistance spring 244 is fixedly arranged on the top of the second spring seat 243, and the top of the resistance spring 244 is connected to the bottom of the first spring seat 134, a round hole is arranged at the bottom of the inner cavity of the focusing roller 241, a connecting arm 245 is arranged on the inner wall of the round hole near the top, a spring connecting shaft 246 is fixedly installed on the top of the connecting arm 245 near one end, and a locking rod 247 is sleeved on the outer surface of the spring connecting shaft 246. When the user pulls the device, The front ends of the resistance bands 25 on both sides extend out from the side holes 23 under the action of tension, and drive the gathering device 24 to rotate. During the process, the resistance spring 244 is deformed and generates elastic force, thereby generating resistance to the user's force position, thereby playing a training role. After use, the elastic force stored in the resistance spring 244 can drive the gathering roller 241 to rotate, and rewind the resistance band 25 around the outside of the gathering device 24, thereby achieving an automatic gathering effect, making it convenient for the user to store the device. Traditional equipment is composed of a belt with elastic function, which requires manual gathering and is inconvenient to use. The device involved in the present application document avoids this problem well, thereby improving the practicality of the device.

[0040] See also Figure 8 The number of the connecting arms 245 is two and they are arranged in a centrally symmetrical manner.

[0041] See also Figure 2 , Figure 5 and Figure 7The locking rod 247 is located inside the annular groove 146. When the spring connecting shaft 246 stores elastic force, the locking rod 247 is disengaged from the ratchet on the outside of the annular groove 146. When the device is used for a long time, the resistance band 25 is disconnected. At this time, one end of the resistance band 25 loses traction. At this time, under the elastic force of the resistance spring 244, the focusing roller 241 rotates rapidly and focuses the resistance band 25. During this process, the locking rod 247 expands outward under the action of centrifugal force, and contacts and gets stuck with the ratchet on the outside of the annular groove 146, preventing the focusing roller 241 from rotating further and stopping the focusing of the resistance band 25, thereby avoiding the problem that the focusing roller 241 quickly focuses after the resistance band 25 is disconnected, causing the device to directly hit the human body and cause injury, thereby improving the safety of the device.

[0042] When the locking rod 247 and the ratchet teeth on the outside of the annular groove 146 are in a stuck state, when the user needs to release the stuck state and continue to use the device, he only needs to press the handle 144 to move the rotating device 14 downward as a whole, and the ratchet teeth on the outside of the annular groove 146 will disengage from the locking rod 247 and release the stuck state, so that the device can continue to be used normally, providing convenience for the use of the device.

[0043] The method of use of the present invention is as follows:

[0044] Before use, the user can adjust the resistance provided by the device. When the user feels that the resistance provided by the device is small during training, the user presses down the handle 144 and rotates it. After being pressed down, the top of the hexagonal rod 141 is disengaged from the top cover 10, so that during the rotation of the handle 144, the adjusting device 13 is driven to rotate synchronously through the hexagonal rod 141. At this time, the resistance spring 244 stores elastic force in the initial state, so that the resistance provided by the device is increased, thereby achieving the function of adjusting the resistance. After the adjustment is completed, the user releases the handle 144. At this time, the elastic force of the reset spring 136 resets the rotating device 14. At this time, the top of the hexagonal rod 141 is flush with the top of the top cover 10 again, so that the hexagonal rod 141 can no longer rotate. At this time, the adjusting device 13 is in a locked state and cannot rotate either.

[0045] When the user pulls the device, the front ends of the resistance bands 25 on both sides extend from the side holes 23 under the action of the pulling force, and drive the gathering device 24 to rotate. During the process, the resistance spring 244 is deformed and generates elastic force, thereby generating resistance to the user's force position, thereby playing a training role. After use, the elastic force stored in the resistance spring 244 can drive the gathering roller 241 to rotate, and re-wind the resistance band 25 around the outside of the gathering device 24, which has an automatic gathering effect and is convenient for the user to store the device.

[0046] When the device is used for a long time, the resistance band 25 becomes disconnected and one end of the resistance band 25 loses traction. Under the elastic force of the resistance spring 244, the closing roller 241 rotates rapidly and closes the resistance band 25. During this process, the locking rod 247 expands outward under the action of centrifugal force, contacts and gets stuck with the ratchet on the outside of the annular groove 146, preventing the closing roller 241 from rotating further and stopping the closing of the resistance band 25. This avoids the problem that the closing roller 241 quickly closes after the resistance band 25 is disconnected, causing the device to directly hit the human body and cause injury. When the locking rod 247 and the ratchet on the outside of the annular groove 146 are in a stuck state, when the user needs to release the stuck state and continue to use the device, he only needs to press the handle 144 to make the rotating device 14 move downward as a whole, and the ratchet on the outside of the annular groove 146 will disengage from the locking rod 247 and release the stuck state.

Claims

1. A tension device for waist resistance training, characterized in that: include: A top cover (10), a sleeve (11) fixedly mounted at the bottom of the top cover (10), a bolt (12) located at the outer side of the top of the top cover (10), an adjustment device (13) movably mounted on the outer surface of the sleeve (11), and a rotating device (14) movably mounted at a center position on the top of the adjustment device (13); A housing (20), a connecting seat (21) disposed on an inner wall of the housing (20) near the top, a bearing seat (22) disposed at the bottom of the inner cavity of the housing (20), side holes (23) disposed on both sides of the outer surface of the connecting seat (21), a gathering device (24) disposed on the outer surface of the bearing seat (22) via a bearing-connected movable sleeve, two resistance bands (25) being sleeved on the outer surface of the gathering device (24), and the two resistance bands (25) respectively extending from two side holes (23) disposed on the outer surface of the connecting seat (21); The bolts (12) and the connecting seat (21) are distributed in a circular array, and the bolts (12) and the connecting seat (21) are matched; the adjusting device (13) comprises an adjusting roller (131), a bottom hole (132) is opened at the bottom of the adjusting roller (131), a groove (133) is arranged outside the adjusting roller (131), a first spring seat (134) is arranged at the top and above the groove (133) on the outside of the adjusting roller (131), a hexagonal matching tube (135) is arranged at the bottom of the inner cavity of the adjusting roller (131) outside the bottom hole (132), and the bottom of the adjusting roller (131) is located outside the bottom hole (132) and at the hexagonal matching tube (135). ) is provided at an inner position of the first spring seat (134); the bottom of the first spring seat (134) is connected to the gathering device (24); the hexagonal matching tube (135) is movably installed with the rotating device (14), and the rotating device (14) extends through the bottom hole (132) to the bottom of the adjusting roller (131); the top of the reset spring (136) is fixedly connected to the rotating device (14); the rotating device (14) comprises a hexagonal rod (141), a first connecting rod (142) arranged at the bottom of the hexagonal rod (141), and a second connecting rod (143) arranged at the top of the hexagonal rod (141); a handle (144) is arranged at the top of the second connecting rod (143); the first connecting rod (142) A rotating disk (145) is fixedly installed at the bottom, and an annular groove (146) is provided at the top of the rotating disk (145) at a position outside the first connecting rod (142), and a ratchet is provided on the outside of the annular groove (146); the cross section of the hexagonal rod (141) is hexagonal, and the hexagonal rod (141) is inserted into the inside of the hexagonal matching tube (135) in the initial state, and the top of the hexagonal rod (141) is kept flush with the top of the top cover (10), the bottom of the first connecting rod (142) protrudes from the inside of the bottom hole (132), and the connection between the hexagonal rod (141) and the second connecting rod (143) is smoothly transitioned; the focusing device (24) includes a focusing roller (241) located at the focusing roller (24 A bearing connection seat (242) is provided at the bottom of the focusing roller (241), and the bearing connection seat (242) is connected to the bearing seat (22) through a bearing sleeve. A second spring seat (243) is provided on the inner wall of the focusing roller (241). A resistance spring (244) is fixedly provided on the top of the second spring seat (243). The top of the resistance spring (244) is connected to the bottom of the first spring seat (134). A circular hole is provided at the bottom of the inner cavity of the focusing roller (241). A connecting arm (245) is provided on the inner wall of the circular hole near the top. A spring connecting shaft (246) is fixedly installed on the top of the connecting arm (245) near one end. A locking rod (247) is sleeved on the outer surface of the spring connecting shaft (246).

2. A tension device for waist resistance training according to claim 1, characterized in that: The number of the connecting arms (245) is two and they are arranged in a centrally symmetrical manner.

3. A tension device for waist resistance training according to claim 1, characterized in that: The locking rod (247) is located inside the annular groove (146), and when the spring connecting shaft (246) stores elastic force, the locking rod (247) and the ratchet teeth outside the annular groove (146) are in a disengaged state.

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