CN210543227U

CN210543227U - Boxing speed ball

Info

Publication number: CN210543227U
Application number: CN201921037741.1U
Authority: CN
Inventors: 李林林; 李毅晨
Original assignee: Quanzhou Economic Technology Development Zone Fuxin Sports Equipment Co ltd
Current assignee: Quanzhou Economic Technology Development Zone Fuxin Sports Equipment Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-19
Anticipated expiration: 2029-07-04

Abstract

The utility model provides a boxing speed ball relates to body-building equipment technical field, has solved boxing speed ball and can't carry out the technical problem of position adjustment according to actual need. The boxing speed ball comprises a ball body, a rebound assembly, a height adjusting assembly, a connecting assembly and a locking structure, wherein the ball body, the rebound assembly, the height adjusting assembly and the connecting assembly are sequentially connected; the connecting assembly has two connecting modes which are respectively used for being detachably connected with a horizontal bar or a wall body; when the connecting component is connected with a horizontal bar or a wall body, the ball body is suspended in the air. The utility model can install the boxing ball on the wall or the horizontal bar by arranging the connecting component, thereby realizing the adjustment of the installation position according to the actual requirement, and having wide application range and high flexibility; can realize the regulation of boxing ball height through setting up altitude mixture control subassembly, can adjust the height to the people of different heights and use, can realize the locking of boxing speed ball high position through the locking structure, keep the locking of boxing speed ball position to avoid shifting because of hitting too much.

Description

Boxing speed ball

Technical Field

The utility model belongs to the technical field of the body-building equipment technique and specifically relates to a boxing speed ball is related to.

Background

The boxing speed ball is a ball body which can be used after being inflated and is used when boxing is practiced. The boxing speed ball is the simplest and easiest body-building exercise, can exercise the sensitivity and the quick response capability of people after long-term exercise, and can also increase the elasticity of muscles and the overall coordination of the body. It also has effects of relieving diarrhea and regulating emotion in mental aspect.

The existing boxing speed ball is divided into a column type boxing speed ball and a rope type boxing speed ball according to a fixing mode, wherein the column type boxing speed ball is formed by fixing a ball at the top end of a column, the bottom end of the column is fixed on a base body, and the height of the boxing speed ball is adjusted by adjusting the height of the column; rope formula boxing speed ball is connected ball both ends and rope, and the rope is connected with ground and roof, adjusts the height of boxing speed ball through adjusting both ends rope length.

The applicant has found that the prior art has at least the following technical problems:

firstly, the boxing speed ball has a single fixed position, cannot be adjusted according to actual requirements, and has a narrow application range; secondly, the two boxing speed balls occupy large space and are inconvenient to store; moreover, the height adjustment operations of the two boxing speed balls are complicated and inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boxing speed ball to solve the boxing speed ball that exists among the prior art and can't carry out the technical problem of position adjustment according to actual need.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a boxing speed ball, which comprises a ball body, a rebound component, a height adjusting component and a connecting component which are connected in sequence; the connecting assembly has two connecting modes and is respectively used for being detachably connected with a horizontal bar or a wall body; when the connecting assembly is connected with a horizontal bar or a wall body, the ball body is suspended in the air.

As a further improvement of the present invention, the connecting assembly includes two connecting pieces, both of the two connecting pieces include an arc-shaped portion, a fixing portion disposed at both ends of the arc-shaped portion, and a supporting portion disposed on the arc-shaped portion, the radian of the arc-shaped portion is the same as that of the horizontal bar, the fixing portion is provided with a mounting hole, and the height adjusting assembly is rotatably connected to the supporting portion; when the boxing speed ball is arranged on the horizontal bar, the two connecting pieces are oppositely arranged; when the boxing speed ball is installed on a wall body, the two fixing parts of one connecting piece are attached to the wall body.

As a further improvement of the present invention, the boxing speed ball further comprises a locking structure, the height adjusting assembly is a segmented structure, and comprises at least three segments of adjusting arms arranged in sequence, the adjusting arms between two adjacent segments and the adjusting arms at the starting end and the supporting part are connected by the locking structure, and the locking or releasing of the locking structure can lock or rotate the positions between two adjacent adjusting arms and between the adjusting arms and the supporting part; the adjusting arm is located at the tail end and is fixedly connected with the rebounding assembly in a detachable mode, and the rebounding assembly is perpendicular to the adjusting arm connected with the rebounding assembly.

As a further improvement of the utility model, the regulating arm includes the first arm of being made by square pipe and the second arm that is formed by two bar shaped plate parallel arrangement, first arm with the second arm sets up in turn, the supporting part is made by square pipe or is set up side by two bar shaped plate and forms, works as when the supporting part is made by square pipe, the second arm with the supporting part is connected, works as when the supporting part is made by two plates, first arm with the supporting part is connected.

As a further improvement of the present invention, the locking structure includes a locking nut, a stabilizing post and a locking bolt, the locking nut is welded on one of the plates of the second arm or the supporting portion, the stabilizing post is inserted into the square tube cavity of the first arm or the supporting portion, and the locking bolt sequentially passes through the other plate of the second arm, the first arm or the supporting portion, the stabilizing post and the one of the plates of the second arm and then is screwed into the locking nut; and the locking bolt sequentially penetrates through the other plate of the supporting part, the first arm, the stabilizing column and one plate of the supporting part and is then screwed in the locking nut.

As a further improvement of the utility model, the locking structure still includes the lockplate, the lockplate is L shape structure, including first locking piece and second locking piece, be provided with on the first locking piece with the same opening of locking bolt specification, first arm or be provided with on the supporting part with the locking hole of second locking piece specification looks adaptation, work as the second locking piece card is established when in the locking hole, first locking piece laminating is connected the second arm or on another board of supporting part, just the opening with the inner chamber coincidence of stabilization post, locking bolt wears to establish on the opening.

As a further improvement of the utility model, the locking structure is still including increasing the resistance pad, the quantity that increases the resistance pad is four, sets up respectively both sides about the first locking piece and first arm with between the second arm.

As a further improvement of the present invention, the locking structure further includes a locking clip and a locking member, the locking clip is a split structure, including a first piece and a second piece, the number of the locking member is three, and is a first piece, a second piece and a third piece respectively, the supporting portion and all the adjusting arm is provided with a first spacing hole, the first piece and the second piece is provided with a plurality of second spacing holes along the length direction, the first piece and the second piece is provided with a third spacing hole at the other end, the first piece and the second piece are overlapped to make two, the third spacing hole is overlapped, the first piece passes two in proper order, penetrate one of them section behind the third spacing hole on the adjusting arm, the second piece and the third piece pass respectively the first piece and the second piece on the second piece penetrate behind the second spacing hole one of them the adjusting arm is adjacent The knuckle arm or the first limiting hole on the supporting part.

As a further improvement, the stabilizing column is a hollow cylinder structure, and the length of the stabilizing column is equal to the length of the corresponding square tube inner cavity.

As a further improvement, the resilience subassembly includes the cylindricality spring and sets up the internal thread section at cylindricality spring both ends, ball body top is provided with the external screw thread pole, is located the next section be provided with fixing bolt on the regulating arm, fixing bolt connects soon on the regulating arm and its end stretch out behind the regulating arm with be located cylindricality spring one end internal thread section spiro union, the ball body passes through the external screw thread pole with be located the cylindricality spring other end the internal thread section spiro union.

As a further improvement of the utility model, all the adjusting arms have the same or different lengths.

As a further improvement of the utility model, the ball body is kept away from the one end of the external screw thread rod is provided with an air charging and discharging port.

The utility model provides a pair of horizontal bar, be in including the horizontal bar body and dismantling the setting boxing speed ball on the horizontal bar body.

Compared with the prior art, the utility model following beneficial effect has:

the utility model can select different connection modes according to different setting positions by arranging the connection component, and can install boxing balls on walls or horizontal bars, thereby realizing the adjustment of installation positions according to actual needs, and having wide application range and high flexibility; the height of the boxing ball can be adjusted by arranging the height adjusting component, and the boxing ball can be used by adjusting the height of people with different heights; through setting up the locking structure, can realize the locking of boxing speed ball height position, keep the locking of boxing speed ball position to avoid shifting because of hitting too much.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of a boxing speed ball of the present invention;

FIG. 2 is a schematic perspective view of an embodiment of a connecting piece of the connecting assembly of the boxing speed ball of the present invention;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a schematic perspective view of the rebounding assembly of the boxing ball of the present invention;

FIG. 5 is a schematic view of the first arm and the second arm of the boxing ball of the present invention;

FIG. 6 is a schematic perspective view of the first arm of the boxing speed ball of the present invention;

FIG. 7 is a schematic perspective view of a stabilizing column in a boxing speed ball of the present invention;

FIG. 8 is a schematic perspective view of a second arm of the boxing ball of the present invention;

FIG. 9 is a schematic end view of a boxing speed ball of the present invention with the first and second arms connected together to remove the locking plate or locking tab and resistance pad;

FIG. 10 is a schematic view of the boxing speed ball with the support part connected to the second arm;

FIG. 11 is a schematic structural view of the ball body of the boxing speed ball of the present invention;

FIG. 12 is a partial cross-sectional view taken from the perspective of A in FIG. 1;

FIG. 13 is a front cross-sectional view of a locking plate with one embodiment of the boxing speed ball of the present invention;

fig. 14 is a schematic structural diagram of another embodiment of the boxing speed ball of the present invention.

In figure 1, a ball body; 11. an externally threaded rod; 12. an air discharge port; 2. a rebound assembly; 21. a cylindrical spring; 22. an internal thread section; 3. a height adjustment assembly; 31. an adjusting arm; 311. a first arm; 312. a second arm; 32. fixing the bolt; 4. a connecting assembly; 41. connecting sheets; 411. an arc-shaped portion; 412. a fixed part; 4121. mounting holes; 413. a support portion; 5. a locking structure; 51. a locking nut; 52. a stabilization post; 53. a locking bolt; 54. a locking plate; 541. a first locking tab; 5411. an opening; 542. a second locking tab; 55. locking the clamping plate; 551. a first sheet; 552. a second sheet; 56. a locking member; 561. a first piece; 562. a second piece; 563. a third piece; 57. a locking hole; 58. a resistance increasing pad; 100. a first limit hole; 200. a second limiting hole; 300. and a third limiting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1, the utility model provides a boxing speed ball, which comprises a ball body 1, a rebound component 2, a height adjusting component 3 and a connecting component 4 which are connected in sequence; the connecting assembly 4 has two connecting modes and is respectively used for being detachably connected with a horizontal bar or a wall body; when the connecting component 4 is connected with a horizontal bar or a wall body, the ball body 1 is suspended in the air.

As shown in fig. 2 and 3, as an alternative embodiment, the connecting assembly 4 includes two connecting pieces 41, each of the two connecting pieces 41 includes an arc portion 411, fixing portions 412 disposed at two ends of the arc portion 411, and a supporting portion 413 disposed on the arc portion 411, an arc degree of the arc portion 411 is the same as an arc degree of a horizontal bar, the arc portion 411 is a semi-arc structure bending to one side, the fixing portion 412 is provided with a mounting hole 4121, the fixing portions 412 are formed by extending vertically and outwardly along two ends of the arc portion 411, and the height adjusting assembly 3 is rotatably connected to the supporting portion 413; when the boxing speed ball is arranged on the horizontal bar, the two connecting pieces 41 are oppositely arranged; the arc parts 411 on the two connecting pieces 41 are oppositely arranged to form a circular cavity, the horizontal bar is fixed in the circular cavity, and then bolts are arranged in the mounting holes 4121 in a penetrating manner to realize the connection between the two connecting pieces 41; when the boxing speed ball is installed on the wall body, the two fixing parts 412 of one connecting piece 41 are attached to the wall body, and the expansion bolts are used for penetrating through the installation holes 4121 of the fixing parts 412 and then the wall body is connected.

Further, the height adjusting assembly 3 is of a segmented structure and comprises at least three segments of adjusting arms 31 which are sequentially arranged, the adjusting arms 31 between two adjacent segments of adjusting arms 31 and the adjusting arms 31 positioned at the starting end and the supporting part 413 are connected through the locking structure 5, and the locking or the releasing of the locking structure 5 can realize the position locking or the relative rotation between the two adjacent adjusting arms 31 and between the adjusting arms 31 and the supporting part 413; adjusting arm 31 at the end is detachably and fixedly connected with rebound assembly 2, and rebound assembly 2 is perpendicular to adjusting arm 31 connected with rebound assembly 2. When the locking structure 5 is in a loose state, the included angle between two adjacent sections of the adjusting arms 31 can be adjusted, the included angle between the supporting part 413 and the adjusting arms 31 can also be adjusted, and the total height of the boxing training ball can be adjusted by adjusting the size of the included angle; that is, through the mutual rotation between two adjacent sections of adjusting arms 31, can realize the distance adjustment between coupling assembling 4 and the ball body 1 to realize the altitude mixture control of boxing speed ball.

As shown in fig. 5-7, as an alternative embodiment, the adjusting arm 31 includes a first arm 311 made of a square tube and a second arm 312 made of two strip-shaped plates arranged in parallel, the first arm 311 and the second arm 312 are arranged alternately, and both plates of the second arm 312 are located outside the first arm 311; of course, the first arm 311 and the second arm 312 may be formed by two strip-shaped plates arranged in parallel, as long as the two adjacent sections of the adjusting arms 31 can rotate relatively; as shown in fig. 10, the support part 413 is made of a square tube or two strip-shaped plates arranged side by side, when the support part 413 is made of a square tube, the second arm 312 is connected to the support part 413 by the second arm 312 of parallel plates, when the support part 413 is made of a square tube, the two plates of the second arm 312 are located outside the square tube of the support part 413, when the support part 413 is made of two plates, the first arm 311 is connected to the support part 413 by the two plates of the support part 413 being located outside the first arm 311.

As shown in fig. 8 and 9, it should be further noted that, in the present invention, the locking structure 5 includes a locking nut 51, a stabilizing column 52 and a locking bolt 53, the locking nut 51 is welded on one of the plates of the second arm 312 or the supporting portion 413, the stabilizing column 52 is inserted into the square tube cavity of the first arm 311 or the supporting portion 413, and the locking bolt 53 is screwed into the locking nut 51 after passing through the other plate of the second arm 312, the first arm 311 or the supporting portion 413, the stabilizing column 52, and the one of the plates of the second arm 512 in sequence; and, the locking bolt 53 is screwed into the locking nut 51 through another plate of the supporting portion 413, the first arm 311, the stabilizing post 52, and one plate of the supporting portion 413 in this order. Through holes for the locking bolts 53 to pass through are formed in the second arm 312 and the first arm 311, the inner cavity of the stabilizing column 52 is larger than the outer diameter of the locking bolts 53, and when the position between the two adjusting arms 31 or the position between the supporting part 413 and the adjusting arms 31 needs to be locked, the locking bolts 53 are screwed in the locking nuts 51, so that the heads of the locking bolts are only pressed on the second arm 312 or the supporting part 413; when the position between the two adjusting arms 31 and the position between the supporting part 413 and the adjusting arm 31 need to be adjusted to enable the two adjusting arms 31 and the supporting part 413 to rotate relatively, the locking bolt 53 is loosened to enable the two adjusting arms 31 to rotate mutually, and the supporting part 413 and the adjusting arm 31 to rotate mutually; install on the horizontal bar when boxing speed ball, and do not carry out the boxing training this moment and need carry out the horizontal bar training time, can loosen the back with the locking structure 5 that supporting part 413 is connected and make height adjusting assembly 3 upwards turn up for the rotation of coupling assembling 4 to drive rebound assembly 2 and ball body 1 and to the upset of horizontal bar top one side, avoid ball body 1 to cause the influence to the training in the horizontal bar below.

As shown in fig. 12 and 13, as an alternative embodiment, the locking structure 5 further includes a locking plate 54, the locking plate 54 is an L-shaped structure and includes a first locking piece 541 and a second locking piece 542, an opening 5411 with the same size as the locking bolt 53 is provided on the first locking piece 541, a locking hole 57 with the same size as the second locking piece 542 is provided on the first arm 311 or the supporting portion 413, when the second locking piece 542 is locked in the locking hole 57, the first locking piece 541 is attached to the other plate of the second arm 512 or the supporting portion 413 in a fitting manner, the opening 5411 coincides with the inner cavity of the stabilization column 52, and the locking bolt 53 is inserted in the opening 5411. The locking structure 5 further includes four resistance increasing pads 58, and the four resistance increasing pads 58 are respectively disposed on the upper and lower sides of the first locking piece 541 and between the first arm 311 and the second arm 312. The resistance increasing pad 58 may be made of rubber or silicone material.

Further, the stabilizing column 52 is a hollow cylinder structure, and the length thereof is equal to the length of the inner cavity of the corresponding square tube, so that both ends of the stabilizing column 52 are abutted against the inner wall of the square tube.

As an alternative embodiment, as shown in fig. 4, the rebound assembly 2 comprises a cylindrical spring 21 and internal thread sections 22 provided at both ends of the cylindrical spring 21, the cylindrical spring 21 with the internal thread sections 22 being commercially available from the outside for prior art products; the sum of the lengths of the internal thread sections 22 at the two ends of the cylindrical spring 21 is less than the length of the cylindrical spring 21; the top of the ball body 1 is provided with an external thread rod 11, the adjusting arm 31 positioned at the lowest section is provided with a fixing bolt 32, the side wall of the adjusting arm 31 positioned at the lowest section is fixedly welded with a nut, the adjusting arm 31 positioned at the lowest section is provided with a through hole for the fixing bolt 32 to pass through, the fixing bolt 32 is screwed in the nut on the adjusting arm 31, the tail end of the fixing bolt passes through the through hole to extend out of the adjusting arm 31 and then is in threaded connection with an internal thread section 22 at one end of a cylindrical spring 21 positioned at the other side of the adjusting arm 31, and the ball body 1 is in threaded connection with the internal thread section 22 at the other end of the cylindrical spring 21 through the external thread rod.

It should be noted that all the adjusting arms 31 have the same or different lengths, and in an embodiment of the present invention, the length of the last adjusting arm 31 connected to the cylindrical spring 21 is the longest.

As shown in fig. 11, an air charging/discharging port 12 is provided at an end of the ball body 1 remote from the male screw rod 11. The ball body 1 can be inflated or deflated through the inflation/deflation port 12, and the structure of the inflation/deflation port 12 and the structure of the ball body 1 can be realized by adopting products in the prior art.

Example 2:

the structure difference between embodiment 2 and embodiment 1 is that, as shown in fig. 14, the locking structure 5 further includes a locking catch plate 55 and three locking members 56, the locking catch plate 55 does not include a locking plate 54, the locking catch plate 55 is a split structure and includes a first plate 551 and a second plate 552, the number of the locking members 56 is three, the locking members are a first member 561, a second member 562 and a third member 563, the supporting portion 413 and all the adjustment arms 31 are respectively provided with a first limiting hole 100, one end of the first plate 551 and one end of the second plate 552 are respectively provided with a plurality of second limiting holes 200 along the length direction, the other end of the first plate 551 and the other end of the second plate 552 are respectively provided with a third limiting hole 300, the ends of the first plate 551 and the second plate 552 are overlapped together to make two third limiting holes 300 coincide, the first member 561 sequentially passes through the two third limiting holes 300 and then passes through the first limiting hole 100 on one of the adjustment arms 31, and the second member 562 and the third member 563 respectively pass through the second limiting holes 200 on the first plate 551 and the second plate 552 and then pass through one of the adjustment arm 31 adjacent to the adjusting arm 31 or the first limiting hole 100 on the supporting part 413. Wherein, the locking member 56 is a bolt or a pin.

The utility model provides a pair of horizontal bar, include the horizontal bar body and can dismantle the boxing speed ball that sets up on the horizontal bar body.

The utility model can select different connection modes according to different setting positions by arranging the connection component, and can install boxing balls on walls or horizontal bars, thereby realizing the adjustment of installation positions according to actual needs, and having wide application range and high flexibility; can realize the regulation of boxing ball height through setting up height adjusting assembly, can come height-adjusting to the people of different heights and use.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A boxing speed ball is characterized by comprising a ball body, a rebound assembly, a height adjusting assembly and a connecting assembly which are sequentially connected; the connecting assembly has two connecting modes and is respectively used for being detachably connected with a horizontal bar or a wall body; when the connecting assembly is connected with a horizontal bar or a wall body, the ball body is suspended in the air.

2. A boxing speed ball in accordance with claim 1, wherein the connecting assembly comprises two connecting pieces, each of the two connecting pieces comprises an arc-shaped portion, fixing portions disposed at both ends of the arc-shaped portion, and a supporting portion disposed on the arc-shaped portion, the arc-shaped portion has the same radian as a horizontal bar, the fixing portions are provided with mounting holes, and the height adjusting assembly is rotatably connected to the supporting portion; when the boxing speed ball is arranged on the horizontal bar, the two connecting pieces are oppositely arranged; when the boxing speed ball is installed on a wall body, the two fixing parts of one connecting piece are attached to the wall body.

3. A boxing speed ball as claimed in claim 2, wherein the boxing speed ball further comprises a locking structure, the height adjusting assembly is a segmented structure and comprises at least three segments of adjusting arms arranged in sequence, the adjusting arms between two adjacent segments and the adjusting arms at the beginning and the supporting part are connected through the locking structure, and the locking or the releasing of the locking structure can realize the position locking or the relative rotation between two adjacent adjusting arms and between the adjusting arms and the supporting part; the adjusting arm is located at the tail end and is fixedly connected with the rebounding assembly in a detachable mode, and the rebounding assembly is perpendicular to the adjusting arm connected with the rebounding assembly.

4. A boxing speed ball in accordance with claim 3, wherein the adjustment arm comprises a first arm made of square pipe and a second arm made of two strip-shaped plates arranged in parallel, the first arm and the second arm are arranged alternately, the support portion is made of square pipe or is arranged side by side of two strip-shaped plates, the second arm is connected to the support portion when the support portion is made of square pipe, and the first arm is connected to the support portion when the support portion is made of two plates.

5. A boxing speed ball in accordance with claim 4, wherein the locking structure comprises a locking nut welded to one of the second arm or the support, a stabilizing post inserted through a square tube cavity of the first arm or the support, and a locking bolt screwed into the locking nut through the other of the second arm, the first arm or the support, the stabilizing post, and the second arm; and the locking bolt sequentially penetrates through the other plate of the supporting part, the first arm, the stabilizing column and one plate of the supporting part and is then screwed in the locking nut.

6. A boxing speed ball in accordance with claim 5, wherein the locking structure further comprises a locking plate, the locking plate is an L-shaped structure comprising a first locking piece and a second locking piece, the first locking piece is provided with an opening with the same specification as the locking bolt, the first arm or the supporting portion is provided with a locking hole adapted to the specification of the second locking piece, when the second locking piece is clamped in the locking hole, the first locking piece is attached to the second arm or another plate of the supporting portion, and the opening coincides with the inner cavity of the stabilizing column, and the locking bolt is inserted into the opening.

7. A boxing speed ball in accordance with claim 6, wherein the locking structure further comprises four resistance increasing pads disposed on upper and lower sides of the first locking piece and between the first arm and the second arm.

8. A boxing speed ball as claimed in claim 5, wherein the locking structure further comprises a locking plate and locking members, the locking plate is a split structure comprising a first piece and a second piece, the number of the locking members is three, the locking members are respectively a first piece, a second piece and a third piece, the support portion and all the adjusting arms are respectively provided with a first limiting hole, one end of each of the first piece and the second piece is respectively provided with a plurality of second limiting holes along the length direction, the other end of each of the first piece and the second piece is provided with a third limiting hole, the end portions of the first piece and the second piece are overlapped together to enable the two third limiting holes to be overlapped, the first piece sequentially passes through the two third limiting holes and then penetrates into the first limiting hole on one of the adjusting arms, and the second piece and the third piece respectively pass through the second limiting holes on the first piece and the second piece and then penetrate into the first limiting hole on one of the adjusting arms The adjusting arm is adjacent to the adjusting arm or the first limiting hole in the supporting part.

9. A boxing speed ball in accordance with claim 5, wherein the stabilizing post is of a hollow cylindrical configuration and is of a length equal to the length of the corresponding square tube cavity.

10. A boxing speed ball in accordance with claim 3, wherein the resilient member comprises a cylindrical spring and internal thread segments at both ends of the cylindrical spring, the top of the ball body is provided with an external thread rod, the adjusting arm at the lowest section is provided with a fixing bolt, the fixing bolt is screwed on the adjusting arm and the tail end of the fixing bolt extends out of the adjusting arm and then is in threaded connection with the internal thread segment at one end of the cylindrical spring, and the ball body is in threaded connection with the internal thread segment at the other end of the cylindrical spring through the external thread rod.