Elastic rope locker

Abstract

The utility model discloses an elastic rope locker which comprises an elastic rope locking wheel, a rotating wheel fixing assembly and a shell assembly, and the elastic rope locking wheel is of a butterfly-shaped structure which is low in the middle and high in two sides. The housing assembly includes a first outer housing, a second outer housing, and an inner housing. And the rotating wheel fixing bolt is used for locking the elastic rope locking wheel. The elastic rope locking wheel comprises a locking wheel first inner side, a locking wheel second inner side and a locking wheel third inner side, a circular locking ring is arranged on the locking wheel first outer side, and locking teeth are arranged on the locking ring. When the boxing ball locking device is used, two elastic ropes penetrate through the elastic rope locking wheels respectively, after a boxing ball is hit, the two elastic rope locking wheels can be stressed at the same time, and the distances from two stress points to the center line of the elastic rope locking device during hanging are the same, so that the elastic rope locking device is stressed uniformly. Due to the fact that two elastic ropes can penetrate through the elastic rope locker at the same time, the bearing capacity of the boxing ball is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fastener, especially relates to a elastic rope locker. BACKGROUND

[0002] Punching ball is a commonly used punching training equipment, mainly including vertical punching ball and hanging punching ball, wherein the vertical punching ball has a base capable of automatically returning the punching ball body to normal after being hit, is directly placed on the ground during use and does not need additional suspension device, is suitable for beginners or the situation that the site cannot hang the punching ball, but the base of the punching ball cannot be replaced, so the bearable force is unchanged, and the swinging and movement are far from actual combat.

[0003] The hanging punching ball needs to be suspended on the ceiling or support, and the hanging punching ball has the advantages that it can provide a more realistic punching experience, different swings are generated along with the direction and force of the punching force, which helps to improve the coordination and rhythm control of the boxer, and the hanging punching ball can adjust the bearing force of the punching ball by replacing or adjusting the elastic rope used for suspension, that is, adjusting the rebound speed of the punching ball, so that different punching requirements can be met.

[0004] However, the self-locking device in the utility model patent CN218345055U is connected with a single elastic rope, so that the force point between the rope and the self-locking disc after hitting the punching ball is deviated from the center line when the self-locking device is suspended, the self-locking device is unevenly stressed, the rebound of the punching ball drifts, the self-locking device can only pass through a single elastic rope, the bearing force range of the punching ball is small, and the applicable population is small. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a elastic rope locker, to solve the problem that the force point between the rope and the self-locking disc after hitting the hanging punching ball is deviated from the center line when the self-locking device is suspended, the self-locking device is unevenly stressed, the self-locking device can only pass through a single elastic rope, and the bearing force range of the punching ball is small.

[0006] In order to solve the above problems, the utility model provides a elastic rope locker, which comprises a elastic rope locking wheel, a rotating wheel fixing assembly and a shell assembly, the elastic rope locking wheel is a butterfly type structure with low middle and high sides.

[0007] The rotating wheel fixing assembly comprises a rotating wheel fixing bolt, and the rotating wheel fixing bolt is used for locking the elastic rope locking wheel.

[0008] The elastic rope locking wheel comprises a first inner side, a second inner side and a third inner side, the first inner side is connected with the second inner side, and the second inner side is connected with the third inner side; the elastic rope locking wheel further comprises a first outer side connected with the first inner side, a circular locking ring is arranged on the first outer side, the center of the elastic rope locking wheel coincides with the center of the locking ring, a plurality of wave-shaped locking teeth are arranged on the locking ring, the first side of the tooth is longer than the second side of the tooth in the rotation direction of the locking ring; the rotating wheel fixing bolt is connected with the first side of the tooth when the elastic rope locking wheel rotates in the positive direction, and the rotating wheel fixing bolt is in contact with the second side of the tooth to prevent the elastic rope locking wheel from rotating in the reverse direction.

[0009] The shell assembly comprises a first outer shell, a second outer shell and an inner shell, one elastic rope locking wheel is arranged between the first outer shell and one side of the inner shell, and two elastic rope windows are arranged on both sides of the combination of the first outer shell and the inner shell at the elastic rope locking wheel.

[0010] One elastic rope locking wheel is arranged between the side of the inner shell opposite to the first outer shell and the second outer shell, and two elastic rope windows are arranged on both sides of the combination of the second outer shell and the inner shell at the elastic rope locking wheel; the elastic rope passes through the elastic rope window and is in contact with the first inner side and / or the second inner side of the locking wheel.

[0011] Further, the first outer shell is provided with a first fixed sliding groove, and a rotating wheel fixing assembly is arranged in the first fixed sliding groove.

[0012] The rotating wheel fixing assembly further comprises a fixing spring and a rotating wheel fixing bolt, the fixing spring is arranged between the rotating wheel fixing bolt and the first groove bottom of the first fixed sliding groove, the rotating wheel fixing bolt is further provided with a fixing bolt spring column, a part of the fixing spring is sleeved on the fixing bolt spring column, the rotating wheel fixing bolt is provided with a fixing bolt sliding part, and the fixing bolt sliding part is in sliding connection with the first fixed sliding groove.

[0013] The first outer shell is further provided with a first pushing hole, the rotating wheel fixing bolt is further provided with a fixing bolt pushing block, and the first pushing hole accommodates the fixing bolt pushing block.

[0014] The end of the rotating wheel fixing bolt opposite to the fixing bolt spring column is a fixed end lock tooth part, and the fixed end lock tooth part is in contact with the locking tooth on the locking ring.

[0015] The second outer side shell is provided with a second fixed sliding groove, the structure of the second fixed sliding groove is same as that of the first fixed sliding groove, and a rotating wheel fixing assembly is arranged in the second fixed sliding groove.

[0016] Further, a plurality of locking fins are arranged on the first inner side of the locking wheel and the third inner side of the locking wheel, one end of the locking fin is connected with the second inner side of the locking wheel.

[0017] Further, the locking fin extends from the second inner side of the locking wheel to the edge of the elastic rope locking wheel along the first inner side of the locking wheel or the third inner side of the locking wheel, and the locking fin is arranged in the direction of the positive rotation of the elastic rope locking wheel.

[0018] Further, the locking fins on the first inner side of the locking wheel and the third inner side of the locking wheel are staggered, and the locking fin on the first inner side of the locking wheel is opposite to the gap between the two locking fins on the third inner side of the locking wheel.

[0019] Further, a locking auxiliary fin in the same direction is arranged between two adjacent locking fins on the first inner side of the locking wheel and the third inner side of the locking wheel, and the locking auxiliary fin is shorter than the locking fin.

[0020] Further, the first outer side shell, the second outer side shell and the inner side shell are further provided with through holes for accommodating the rotating shaft of the elastic rope locking wheel.

[0021] Further, the top of the inner side shell is provided with a first fixing hole and a second fixing hole, a hanging bolt is arranged in the first fixing hole and the second fixing hole, and the hanging bolt is used for hook hanging.

[0022] Further, the inner side shell comprises an inner side left shell and an inner side right shell, the structure of the inner side left shell is same as that of the inner side right shell, and the inner side left shell and the inner side right shell are connected through bolts.

[0023] Further, the first outer side shell and the inner side shell are detachably connected, and the second outer side shell and the inner side shell are detachably connected.

[0024] The elastic rope locking device has the advantages that, compared with the prior art, the elastic rope locking wheel, the rotating wheel fixing assembly and the shell assembly, two elastic ropes are respectively arranged through the elastic rope locking wheel, after the punching ball is hit, the two elastic rope locking wheels are simultaneously stressed, the center line distance of the two stress points to the elastic rope locking device is same when the elastic rope locking device is hung, and therefore the elastic rope locking device is uniformly stressed. Since the elastic rope locking device can simultaneously arrange two elastic ropes, the bearable force of the punching ball is increased. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a side view of the elastic rope locker;

[0026] Figure 2 is a sectional view of the side of the elastic rope locker;

[0027] Figure 3 is a side view of the elastic rope locking wheel;

[0028] Figure 4 is a side view of the rotating wheel fixing assembly. DETAILED DESCRIPTION

[0029] For better understanding of the purpose, structure and function of the utility model, the following will combine the attached drawings to make a further detailed description of the utility model. Figures 1 to 4 A further detailed description of the utility model elastic rope locker will be made.

[0030] As shown in Figure 1 and Figure 2 , the utility model embodiment of an elastic rope locker, the device includes elastic rope locking wheel, rotating wheel fixing assembly and shell assembly. Wherein the shell assembly includes first outer side shell body 310, second outer side shell body 320 and inner side shell body 400. First outer side shell body 310 and the one side between inner side shell body 400 are provided with an elastic rope locking wheel, the combination of first outer side shell body 310 and inner side shell body 400 is provided with an elastic rope window 500 at the two sides of elastic rope locking wheel. The opposite side of inner side shell body 400 and first outer side shell body 310 and the second outer side shell body 320 between are provided with an elastic rope locking wheel, the combination of second outer side shell body 320 and inner side shell body 400 is provided with an elastic rope window 500 at the two sides of elastic rope locking wheel. Elastic rope passes through elastic rope window 500 and locking wheel first inner side 110 and / or locking wheel second inner side 120 contact.

[0031] First outer side shell body 310 is provided with first fixed sliding groove 311, and the first fixed sliding groove 311 is provided with rotating wheel fixing assembly, and the rotating wheel fixing assembly further includes rotating wheel fixing bolt 210 and fixed spring 220, and the rotating wheel fixing bolt 210 is further provided with fixed bolt spring column 212, and a portion of the fixed spring 220 is arranged on the fixed bolt spring column 212, and the fixed spring 220 is further in contact with the first groove bottom 312 of the first fixed sliding groove 311. In the use process, the fixed spring 220 is always in the compressed state, that is, the fixed spring 220 always pushes the rotating wheel fixing bolt 210.

[0032] As shown in Figure 3 and Figure 4As shown, the end of the rotating wheel fixing bolt 210 opposite to the fixing bolt spring column 212 is a fixed end locking tooth part 214, which is also in contact with the locking tooth 142 on the locking ring 141. The rotating wheel fixing bolt 210 is also provided with a fixing bolt pushing block 211, which is arranged in the first pushing hole 313 of the first outer side shell 310. The user can push the fixing bolt pushing block 211 to push the rotating wheel fixing bolt 210, so that the rotating wheel fixing bolt 210 is out of contact with the locking tooth 142. The second outer side shell 320 has a second fixing sliding groove, which has the same structure as the first fixing sliding groove 311. The second fixing sliding groove also has a rotating wheel fixing assembly arranged therein, which has the same assembly method and function as the rotating wheel fixing assembly in the first fixing sliding groove 311.

[0033] The first outer side shell 310 and the inner side shell 400 are also provided with an elastic rope locking wheel, the middle of which is provided with a wheel rotating shaft 160. The first outer side shell 310, the second outer side shell 320 and the inner side shell 400 are also provided with through holes, which can accommodate the wheel rotating shaft 160 of the elastic rope locking wheel. So that the wheel rotating shaft 160 can rotate in the through hole.

[0034] In the present invention, the elastic cord locking wheel has a butterfly-shaped structure with a lower center and higher sides. The lower center side is the locking wheel's second inner side 120, and the two inclined side surfaces connected to the locking wheel's second inner side 120 are the locking wheel's first inner side 110 and the locking wheel's third inner side 130. The locking wheel's first inner side 110 is also connected to the locking wheel's first outer side 140. A locking ring 141 is provided on the locking wheel's first outer side 140. This locking ring 141 is circular, with its center coinciding with the center of the elastic cord locking wheel. The locking ring 141 is also provided with a plurality of wavy locking teeth 142. These teeth 142 include a first side 143 and a second side 144. In the direction of rotation of the locking ring 141, the length of the first side 143 is longer than the length of the second side 144. One side of the locking teeth 142 is the first side 143, and the other side is the second side 144. Connecting the vertex of the locking tooth 142 and the two points on both sides of the locking tooth 142 that contact the locking ring 141 forms a triangle. The first side 143 of the tooth is the side closest to the longest side of the triangle, and the second side 144 of the tooth is the side closest to the shortest side of the triangle. When the locking tooth 142 contacts the fixed end locking tooth portion 214 of the rotating wheel fixing bolt 210 and the elastic cord locking wheel rotates, the direction in which the fixed end locking tooth portion 214 passes over the first side 143 of the tooth is defined as forward rotation, and the direction opposite to forward rotation is defined as reverse rotation. When the elastic cord locking wheel reverses, if the fixing bolt pushing block 211 is not pushed, the fixed end locking tooth portion 214 contacts the second side 144 of the tooth, and the fixed end locking tooth portion 214 cannot slide off the second side 144, thereby preventing the elastic cord locking wheel from reversing.

[0035] In some embodiments, a notch is provided on one side of the fixed end locking tooth portion 214 . When the fixed end locking tooth portion 214 contacts the second tooth side surface 144 , the notch is coupled with the locking tooth 142 , thereby improving the degree of fixation.

[0036] In use, the elastic rope passes through or is wound around the elastic rope locking wheel, the elastic rope is in contact with the first inner side 110, the second inner side 120 and the third inner side 130 of the locking wheel, and one end of the elastic rope passing through the elastic rope locking wheel is connected with the punching ball. When it is necessary to ensure that the elastic rope remains taut while being connected with the punching ball, the fixed end locking tooth portion 214 is in contact with the second side surface 144 of the tooth, at which time the elastic rope has a tendency to pull the elastic rope locking wheel to reverse rotation. Since the fixed end locking tooth portion 214 prevents the elastic rope locking wheel from reversing, the elastic rope locking device always keeps the elastic rope in a taut state. After hitting the punching ball, both elastic rope locking wheels are simultaneously subjected to force, and the two elastic ropes have the same distance from the force receiving point of the elastic rope locking wheel to the center line of the elastic rope locking device when it is hung, so that the elastic rope locking device is uniformly stressed, making the rebound of the punching ball more stable and not drifting. Moreover, since two elastic ropes are simultaneously provided, the punching ball can withstand greater force than when only one elastic rope is provided. This design can make the punching ball have a larger force range, which can be used by users with smaller hitting force and by users with larger hitting force. For example, assuming that the punching ball can withstand a maximum tension of 50 Kg when one elastic rope is provided, the punching ball can withstand a maximum tension of 100 Kg after two elastic ropes are provided.

[0037] If it is necessary to further tighten the elastic rope, the end of the elastic rope not connected with the punching ball can be pulled, at which time the elastic rope is pulled to cause the elastic rope locking wheel to rotate in the forward direction. Since the fixed end locking tooth portion 214 passes the first side surface 143 of the tooth in the forward direction, the fixed end locking tooth portion 214 does not prevent the elastic rope locking wheel from rotating, so that the elastic rope can be conveniently tightened. If it is necessary to reduce the tension of the elastic rope pulling the punching ball, the fixed pin pushing block 211 of the rotating wheel fixed pin 210 can be pushed to cause the fixed end locking tooth portion 214 to be out of contact with the locking tooth 142, at which time the elastic rope locking wheel reverses.

[0038] To further stabilize the contact between the elastic cord and the elastic cord locking wheel, a plurality of locking fins 150 are provided on both the first inner side 110 and the third inner side 130 of the locking wheel. One end of each locking fin 150 is connected to the second inner side 120 of the locking wheel. The second inner side 120 of the locking wheel extends from the first inner side 110 or the third inner side 130 toward the edge of the elastic cord locking wheel, with the locking fins 150 oriented in the direction of the positive rotation of the elastic cord locking wheel. Furthermore, the locking fins 150 on the first inner side 110 and the third inner side 130 of the locking wheel are arranged in a staggered pattern, with the locking fins 150 on the first inner side 110 facing the gap between the two locking fins 150 on the third inner side 130. This design secures the elastic cord between the two locking fins 150, further stabilizing the elastic cord. Because the locking fins 150 are offset in the forward rotation direction of the elastic cord locking wheel, when the elastic cord is tightened, the offset direction of the locking fins 150 can also provide resistance to the elastic cord's reverse sliding, thereby increasing the stability of the elastic cord threaded through the elastic cord locking wheel. A locking auxiliary fin 151 is provided between two adjacent locking fins 150 on the first inner side 110 and the third inner side 130 of the locking wheel. The locking auxiliary fin 151 is shorter than the locking fin 150. This design can also further clamp the elastic cord. That is, when part of the elastic cord is stuck between the two locking fins 150, the part of the elastic cord that does not contact the locking fins 150 may be suspended. After adding the locking auxiliary fin 151, this suspended part of the elastic cord can also be contacted by the locking auxiliary fin 151, and the locking fin 150 on the opposite side works together to compress the elastic cord, thereby further improving the stability of the elastic cord threaded through the elastic cord locking wheel.

[0039] like Figure 1 As shown, in the present invention, a first fixing hole and a second fixing hole are provided on the top of the inner shell 400, and a hanging bolt 410 is passed through the first fixing hole and the second fixing hole. When in use, the elastic rope locker is connected to the hook through the hanging bolt 410, and the other end of the hook is connected to the elastic rope, which can be connected to the ceiling, the floor or the boxing ball.

[0040] It can be understood that the first outer shell 310 is detachably connected with the inner shell 400, and the second outer shell 320 is detachably connected with the inner shell 400. When installing the elastic cord, the elastic cord is first installed on the elastic cord locking wheel, and then the first outer shell 310, the second outer shell 320 and the inner shell 400 are installed. When installing the elastic cord, a group of elastic cord assemblies is divided into two elastic cords, one part of which is defined as A1 and the other part of which is defined as B1, A1 is inserted from the front of one of the elastic cord locking wheels, and the elastic cord from the elastic cord locking device is defined as A2; B1 is inserted from the back of the other elastic cord locking wheel, and the elastic cord segment is defined as B2. A1 and B1 are wound together outside the elastic cord locking device, and A2 and B2 are wound together. The wound elastic cord can be fixed together by using adhesive tape, aluminum buckle or heat-shrinkable elastic sleeve, which can fix the elastic cord and protect the elastic cord from colliding together. After installing the two elastic cords into the elastic cord locking device, the anti-impact ability of the punching ball is larger, the applicability is wider, and the stress of the elastic cord locking device is uniform. If it is necessary to adjust the elastic cord, the fixed bolt pushing block 211 can be pushed to adjust the elastic cord.

[0041] It can be understood that the inner shell 400 includes an inner left shell and an inner right shell, and the inner left shell and the inner right shell are the same structure and are connected by bolts. This design makes the inner shell 400 into two same modules, and when one of the modules is abnormal, only one of the modules needs to be replaced, which is convenient for batch construction. The inner shell 400 can also be designed as a whole, reducing the number of parts and installation steps.

[0042] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bungee cord locker, characterized in that: It includes an elastic rope locking wheel, a rotating wheel fixing assembly and a shell assembly. The elastic rope locking wheel is a butterfly-shaped structure with a low middle and high sides. The rotating wheel fixing assembly comprises a rotating wheel fixing bolt (210), and the rotating wheel fixing bolt (210) is used to lock the elastic rope locking wheel; The elastic rope locking wheel comprises a first inner side (110) of the locking wheel, a second inner side (120) of the locking wheel and a third inner side (130) of the locking wheel, wherein the first inner side (110) of the locking wheel is connected to the second inner side (120) of the locking wheel, and the second inner side (120) of the locking wheel is connected to the third inner side (130) of the locking wheel; the elastic rope locking wheel also comprises a first outer side (140) of the locking wheel, wherein the first outer side (140) of the locking wheel is connected to the first inner side (110) of the locking wheel, and a circular locking ring (141) is provided on the first outer side (140) of the locking wheel, wherein the locking ring (141) is connected to the elastic rope locking wheel. The centers of the rope locking wheels coincide with each other, and the locking ring (141) is provided with a plurality of wavy locking teeth (142), the locking teeth (142) including a first tooth side surface (143) and a second tooth side surface (144), and in the rotation direction of the locking ring (141), the length of the first tooth side surface (143) is longer than the length of the second tooth side surface (144); when the elastic rope locking wheel rotates forward, the rotating wheel fixing bolt (210) is slidably connected from the first tooth side surface (143), and when the elastic rope locking wheel rotates reversely, the rotating wheel fixing bolt (210) contacts the second tooth side surface (144) to prevent the elastic rope locking wheel from reversing; The housing assembly comprises a first outer shell (310), a second outer shell (320) and an inner shell (400), wherein an elastic cord locking wheel is provided between one side of the first outer shell (310) and the inner shell (400), and an elastic cord window (500) is provided on each side of the elastic cord locking wheel of the combination of the first outer shell (310) and the inner shell (400); An elastic rope locking wheel is provided between the side of the inner shell (400) opposite to the first outer shell (310) and the second outer shell (320), and an elastic rope window (500) is provided on each side of the elastic rope locking wheel of the combination of the second outer shell (320) and the inner shell (400); the elastic rope passes through the elastic rope window (500) and contacts the first inner side (110) of the locking wheel and / or the second inner side (120) of the locking wheel.

2. The elastic cord locker according to claim 1, characterized in that: A first fixed sliding groove (311) is provided on the first outer shell (310), and a rotating wheel fixing component is provided in the first fixed sliding groove (311); The rotating wheel fixing assembly further comprises a fixing spring (220) and a rotating wheel fixing bolt (210), wherein the fixing spring (220) is arranged between the rotating wheel fixing bolt (210) and the first groove bottom (312) of the first fixing chute (311), and the rotating wheel fixing bolt (210) is further provided with a fixing bolt spring column (212), a part of the fixing spring (220) is sleeved on the fixing bolt spring column (212), and the rotating wheel fixing bolt (210) is provided with a fixing bolt sliding portion (213), and the fixing bolt sliding portion (213) is slidably connected to the first fixing chute (311); A first pushing hole (313) is further provided on the first outer shell (310), and a fixing bolt pushing block (211) is further provided on the rotating wheel fixing bolt (210), and the first pushing hole (313) accommodates the fixing bolt pushing block (211); The end of the rotating wheel fixing bolt (210) opposite to the fixing bolt spring column (212) is a fixed end locking tooth portion (214), and the fixed end locking tooth portion (214) is also in contact with the locking tooth (142) on the locking ring (141); A second fixed slide groove is provided on the second outer shell (320), the structure of the second fixed slide groove is the same as that of the first fixed slide groove (311), and a rotating wheel fixing component is also provided in the second fixed slide groove.

3. The elastic cord locker according to claim 2, characterized in that: A plurality of locking fins (150) are provided on the first inner side (110) of the locking wheel and the third inner side (130) of the locking wheel, and one end of the locking fin (150) is connected to the second inner side (120) of the locking wheel.

4. The elastic cord locker according to claim 3, characterized in that: The locking fin (150) starts from the second inner side (120) of the locking wheel and extends along the first inner side (110) of the locking wheel or the third inner side (130) of the locking wheel toward the edge of the elastic rope locking wheel, and the direction of the locking fin (150) is in the forward rotation direction of the elastic rope locking wheel.

5. The elastic cord locker according to claim 4, characterized in that: The locking fins (150) on the first inner side (110) of the locking wheel and the third inner side (130) of the locking wheel are arranged alternately, and the locking fins (150) on the first inner side (110) of the locking wheel face the gap between the two locking fins (150) on the third inner side (130) of the locking wheel.

6. The elastic cord locker according to claim 4, characterized in that: A locking auxiliary fin (151) in the same direction is provided between two adjacent locking fins (150) on the first inner side (110) of the locking wheel and the third inner side (130) of the locking wheel, and the locking auxiliary fin (151) is shorter than the locking fin (150).

7. The elastic cord locker according to claim 1, characterized in that: The first outer shell (310), the second outer shell (320) and the inner shell (400) are also provided with through holes, and the through holes are used to accommodate the wheel shaft (160) of the elastic rope locking wheel.

8. The elastic cord locker according to claim 1, characterized in that: A first fixing hole and a second fixing hole are provided on the top of the inner shell (400), and hanging bolts (410) are passed through the first fixing hole and the second fixing hole, and the hanging bolts (410) are used for hook hanging.

9. The elastic cord locker according to claim 1, characterized in that: The inner shell (400) comprises an inner left shell and an inner right shell, the inner left shell and the inner right shell have the same structure, and the inner left shell and the inner right shell are connected by bolts.

10. The elastic cord locker according to any one of claims 1 to 9, characterized in that: The first outer shell (310) and the inner shell (400) are detachably connected, and the second outer shell (320) and the inner shell (400) are detachably connected.

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