Water goal

Abstract

The utility model discloses a water goal which comprises a water goal base, a goal frame installed on the water goal base and a water goal net installed on the goal frame, and the water goal base is composed of a goal rear base, a goal left base and a goal right base which are relatively independent. The left goal base and the right goal base are connected to the left end and the right end of the rear goal base respectively, and the interior of the rear goal base, the interior of the left goal base and the interior of the right goal base are hollow and can form air bag containing cavities. The bottoms of the goal rear base, the goal left base and the goal right base are all in an opening shape communicated with the corresponding air bag containing cavities, and inflatable and deflatable air bags are arranged in the air bag containing cavities of the goal rear base, the goal left base and the goal right base. The water goal has the advantages that the height of the water goal on the water surface is convenient to adjust, and the water goal is convenient to store.

Description

Technical Field

[0001] The utility model relates to the technical field of water sports equipment, in particular to a water polo goal. Background Art

[0002] A water polo goal is an essential piece of water sports equipment for water polo. Currently used water polo goals typically consist of a base, a goal frame mounted on the base, a net support frame, and a net. The base and frame are integrally formed, and the distance between the bottom edge of the goal frame's crossbar and the top surface of the base is 900mm. In water polo, the distance between the goal frame's crossbar and the water surface must be maintained at 900mm. The water polo goal currently in use has the following disadvantages: (1) After the water polo goal is placed on the water surface, in order to adjust the height of the water polo goal on the water surface to keep the distance from the crossbeam of the goal frame to the water surface at 900 mm, the buoyancy of the water polo goal in the water is adjusted by filling or removing some foam materials such as foam into the base so that the upper surface of the base is flush with the water surface, so that the water polo goal can be balanced and the height of the water polo goal on the water surface can be kept at 900 mm from the crossbeam of the goal frame to the water surface. However, the height adjustment operation of this water polo goal on the water surface is very inconvenient and time-consuming and labor-intensive; (2) The water polo goal is integrally formed and requires a large storage space when stored, which is inconvenient to store. Utility Model Content

[0003] The utility model aims to provide a water polo goal which is convenient for adjusting the height of the water polo goal above the water surface and convenient for storage.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a water polo goal, comprising a water polo goal base, a goal frame installed on the water polo goal base, and a water polo goal net installed on the goal frame, wherein the water polo goal base is composed of a relatively independent goal rear base, a goal left base and a goal right base, the left goal base and the right goal base are respectively connected to the left and right ends of the goal rear base, the interiors of the goal rear base, the goal left base and the goal right base are all hollow and can form airbag accommodating chambers, the bottoms of the goal rear base, the goal left base and the goal right base are all open and connected to the corresponding airbag accommodating chambers, and inflatable and deflable airbags are all placed in the airbag accommodating chambers of the goal rear base, the goal left base and the goal right base.

[0005] Furthermore, the aforementioned water polo goal, wherein: the specific connection structure between the rear base of the goal and the right base of the goal includes: a first through hole is provided on the side wall of the rear base of the goal facing the right base of the goal, a second through hole corresponding to the first through hole is provided on the side wall of the right base of the goal facing the rear base of the goal, a first connecting bolt is commonly penetrated through the corresponding first through hole and the second through hole, the screw of the first connecting bolt passes through the second through hole from the first through hole and is threadedly connected to the first connecting nut; the specific connection structure between the rear base of the goal and the left base of the goal includes: a third through hole is provided on the side wall of the rear base of the goal facing the left base of the goal, a fourth through hole corresponding to the third through hole is provided on the side wall of the left base of the goal facing the rear base of the goal, a second connecting bolt is commonly penetrated through the corresponding third through hole and the fourth through hole, the screw of the second connecting bolt passes through the fourth through hole from the third through hole and is threadedly connected to the second connecting nut.

[0006] Furthermore, the aforementioned water polo goal, wherein: the goal frame includes a left post and a right post arranged on the left and right, and a goal crossbar connecting the upper ends of the left post and the right post; the left post of the goal frame is connected to the left base of the goal; the right post of the goal frame is connected to the right base of the goal.

[0007] Furthermore, the aforementioned water polo goal, wherein: the specific connection structure between the left post and the left base of the goal includes: a fifth through hole is provided on the top plate of the left base of the goal facing the left post, a first threaded hole corresponding to the fifth through hole is provided at the bottom of the left post, a third connecting bolt is commonly penetrated through the corresponding first threaded hole and the fifth through hole, the screw rod of the third connecting bolt passes through the fifth through hole and is threadedly connected to the first threaded hole; the specific connection structure between the right post and the right base of the goal includes: a sixth through hole is provided on the top plate of the right base of the goal facing the right post, a second threaded hole corresponding to the sixth through hole is provided at the bottom of the right post, a fourth connecting bolt is commonly penetrated through the corresponding second threaded hole and the sixth through hole, the screw rod of the fourth connecting bolt passes through the sixth through hole and is threadedly connected to the second threaded hole.

[0008] Furthermore, the aforementioned water polo goal, wherein: it also includes a left net support frame and a right net support frame arranged on the left and right sides, the upper end of the left net support frame is connected to the upper end of the left post, and the lower end of the left net support frame is connected to the left end of the rear base of the goal; the upper end of the right net support frame is connected to the upper end of the right post, and the lower end of the right net support frame is connected to the right end of the rear base of the goal.

[0009] Furthermore, the aforementioned water polo goal, wherein: the specific connection structure between the upper end of the left net support frame and the upper end of the left upright post includes: a seventh through hole is provided on the upper mounting plate of the left net support frame facing the left upright post, a third threaded hole corresponding to the seventh through hole is provided on the upper side wall of the left upright post, a fifth connecting bolt is commonly passed through the corresponding third threaded hole and the seventh through hole, the screw of the fifth connecting bolt passes through the seventh through hole and is threadedly connected to the third threaded hole; the specific connection structure between the lower end of the left net support frame and the left end of the goal rear base includes: an eighth through hole is provided on the lower mounting plate of the left net support frame facing the goal rear base, a ninth through hole corresponding to the eighth through hole is provided on the top plate of the goal rear base facing the left net support frame, a sixth connecting bolt is commonly passed through the corresponding eighth through hole and the ninth through hole, the screw of the sixth connecting bolt passes through the eighth through hole and is threadedly connected to the third connecting nut.

[0010] Furthermore, the aforementioned water polo goal, wherein: the specific connection structure between the upper end of the right net support frame and the upper end of the right upright post includes: a tenth through hole is provided on the upper mounting plate of the right net support frame facing the right upright post, a fourth threaded hole corresponding to the tenth through hole is provided on the upper side wall of the right upright post, a seventh connecting bolt is commonly passed through the corresponding fourth threaded hole and the tenth through hole, the screw of the seventh connecting bolt passes through the tenth through hole and is threadedly connected to the fourth threaded hole; the specific connection structure between the lower end of the right net support frame and the right end of the goal rear base includes: an eleventh through hole is provided on the lower mounting plate of the right net support frame facing the goal rear base, a twelfth through hole corresponding to the eleventh through hole is provided on the top plate of the goal rear base facing the right net support frame, an eighth connecting bolt is commonly passed through the corresponding eleventh through hole and the twelfth through hole, the screw of the eighth connecting bolt passes through the twelfth through hole from the eleventh through hole and is threadedly connected to the first connecting nut.

[0011] Through the implementation of the above technical solution, the beneficial effects of the utility model are as follows: (1) the base of the water polo goal is divided into three independent left, right and rear parts, and an inflatable air bag is placed inside each part. After the water polo goal is placed on the water surface, the buoyancy of the three parts of the water polo goal base in the water is adjusted respectively by adjusting the amount of gas that rushes into the rear base of the goal, the left base of the goal and the right base of the goal, until the upper surface of the water polo goal base as a whole is kept flush with the water surface, so that the water polo goal is kept balanced and the height of the water polo goal on the water surface is kept at a distance of 900mm from the crossbeam of the goal frame to the water surface. The height adjustment operation of the water polo goal on the water surface is very convenient and saves time and effort; and Moreover, since the bottoms of the rear base, left base and right base of the goal are all open, workers can easily place the airbags in each base during installation. In addition, during the use of the water polo goal, each airbag is in direct contact with water. Under the action of water buoyancy, each airbag will be confined in each base, which can effectively prevent each airbag from escaping from the corresponding base, thereby improving the stability of use. (3) The overall frame of the water polo goal is detachably assembled from the water polo goal net, the rear base of the goal, the right base of the goal, the left base of the goal, the goal frame, the left net support frame and the right net support frame. When storing, the various parts of the water polo goal can be disassembled and stored, which greatly reduces the storage space and is convenient for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic structural diagram of a water polo goal when the water polo goal net is hidden in the front view direction.

[0013] Figure 2 for Figure 1 An enlarged schematic diagram of site A is shown in FIG.

[0014] Figure 3 for Figure 1 An enlarged schematic diagram of site B is shown in FIG.

[0015] Figure 4 This is a structural schematic diagram of a water polo goal according to the present invention when the water polo goal net is not hidden when viewed from the right.

[0016] Figure 5 for Figure 4 An enlarged schematic diagram of site C is shown in FIG.

[0017] Figure 6 This is a structural schematic diagram of a water polo goal according to the present invention when the water polo goal net is not hidden when viewed from the left.

[0018] Figure 7 for Figure 6 An enlarged schematic diagram of site D is shown in FIG.

[0019] Figure 8This is a schematic structural diagram of a water polo goal according to the present invention when the water polo goal net is not hidden when viewed from above.

[0020] Figure 9 for Figure 8 An enlarged schematic diagram of site E is shown in FIG.

[0021] Figure 10 for Figure 8 An enlarged schematic diagram of site F is shown in FIG. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 、 Figure 4 、 Figure 6 、 Figure 8 As shown, the water polo goal comprises a water polo goal base, a goal frame installed on the water polo goal base, and a water polo goal net 1 installed on the goal frame. The water polo goal base, the goal frame and the net support frame are all made of rigid materials such as steel. The water polo goal base is composed of a relatively independent goal rear base 2, a goal left base 3 and a goal right base 4. The goal left base 3 is connected to the left end of the goal rear base 2, and the goal right base 4 is connected to the right end of the goal rear base 2. The interiors of the goal rear base 2, the goal left base 3 and the goal right base 4 are all hollow and can form an airbag accommodating chamber 5. The bottoms of the goal rear base 2, the goal left base 3 and the goal right base 4 are all open and connected to the corresponding airbag accommodating chamber 5. The water polo goal has a mouth shape. Inflatable and deflable air bags 6 are placed in the air bag accommodating chambers 5 of the rear base 2, the left base 3 and the right base 4 of the goal. In actual use, the buoyancy of each part of the water polo goal base in water can be adjusted by adjusting the amount of gas injected into each air bag 6 in the rear base 2, the left base 3 and the right base 4 of the goal respectively, so that the upper surface of the water polo goal base as a whole remains flush with the water surface, so that the water polo goal remains balanced and the height of the water polo goal above the water surface is maintained at a distance of 900 mm from the crossbeam of the goal frame to the water surface. The height adjustment operation of the water polo goal above the water surface is very convenient and saves time and effort. In addition, during the adjustment process, the inflation and deflation of each air bag 6 does not cause deformation of the overall shape of the water polo goal.

[0024] In this embodiment, if Figure 5 、 Figure 10As shown, the specific connection structure of the goal rear base 2 and the goal right base 4 includes: a first through hole is provided on the side wall of the goal rear base facing the goal right base 4, and a second through hole corresponding to the first through hole is provided on the side wall of the goal right base facing the goal rear base 2, and a first connecting bolt 71 is passed through the corresponding first through hole and second through hole. The screw of the first connecting bolt 71 passes through the second through hole from the first through hole and is threadedly connected to the first connecting nut 81. In actual use, it is only necessary to loosen and remove the first connecting nut 81 first, and then remove the first connecting bolt 71 to easily separate the goal rear base 2 from the goal right base 4 for storage and storage. During installation, it is only necessary to pass the screw of the first connecting bolt 71 from the first through hole through the second through hole, and then tighten the first connecting nut 81 on the first connecting bolt 71 to fix the goal rear base 2 to the goal right base 4, which is very convenient to install. Figure 7 、 Figure 9 As shown, the specific connection structure of the goal rear base 2 and the goal left base 3 includes: a third through hole is provided on the side wall of the goal rear base facing the goal left base 3, and a fourth through hole corresponding to the third through hole is provided on the side wall of the goal left base facing the goal rear base 2, and a second connecting bolt 72 is passed through the corresponding third through hole and fourth through hole, and the screw of the second connecting bolt 72 passes through the fourth through hole from the third through hole and is threadedly connected to the second connecting nut 82; in actual use, it is only necessary to first loosen and remove the second connecting nut 82, and then remove the second connecting bolt 72 to easily separate the goal rear base 2 from the goal left base 3 for storage and storage. During installation, it is only necessary to pass the screw of the second connecting bolt 72 from the third through hole through the fourth through hole, and then tighten the second connecting nut 82 on the second connecting bolt 72 to fix the goal rear base 2 and the goal left base 3, which is very convenient to install;

[0025] In this embodiment, the goal frame includes a left upright post 51 and a right upright post 52 arranged on the left and right sides, and a goal crossbar 53 connecting the upper ends of the left upright post 51 and the upper ends of the right upright post 52; the left upright post 51 of the goal frame is connected to the left base 3 of the goal; the right upright post 52 of the goal frame is connected to the right base 4 of the goal;

[0026] In this embodiment, if Figure 2As shown, the specific connection structure between the left upright post 51 and the left base 3 of the goal includes: a fifth through hole is provided on the top plate of the left base of the goal facing the left upright post 51, a first threaded hole corresponding to the fifth through hole is provided on the bottom of the left upright post 51, and a third connecting bolt 73 is passed through the corresponding first threaded hole and the fifth through hole. The screw of the third connecting bolt 73 passes through the fifth through hole and is then threadedly connected to the first threaded hole. In actual use, the left upright post 51 can be easily separated from the left base 3 of the goal by simply unscrewing the third connecting bolt 73 for easy storage. During installation, the left upright post 51 can be fixed to the left base 3 of the goal by simply passing the screw of the third connecting bolt 73 through the fifth through hole and then threadedly connected to the first threaded hole. The installation is very convenient.

[0027] like Figure 3 As shown, the specific connection structure between the right column 52 and the right base 4 of the goal includes: a sixth through hole is provided on the top plate of the right base of the goal facing the right column 52, a second threaded hole corresponding to the sixth through hole is provided on the bottom of the right column 52, and a fourth connecting bolt 74 is passed through the corresponding second threaded hole and the sixth through hole. The screw of the fourth connecting bolt 74 passes through the sixth through hole and is then threadedly connected to the second threaded hole. In actual use, the right column 52 can be easily separated from the right base 4 of the goal by simply unscrewing the fourth connecting bolt 74 for easy storage. During installation, the right column 52 can be fixed to the right base 4 of the goal by simply passing the screw of the fourth connecting bolt 74 through the sixth through hole and then threading it into the second threaded hole. The installation is very convenient.

[0028] In this embodiment, the left net support frame 91 and the right net support frame 92 are arranged on the left and right sides. The upper end of the left net support frame 91 is connected to the upper end of the left upright post 51, and the lower end of the left net support frame 91 is connected to the left end of the rear base 2 of the goal; the upper end of the right net support frame 92 is connected to the upper end of the right upright post 52, and the lower end of the right net support frame 92 is connected to the right end of the rear base 2 of the goal.

[0029] In this embodiment, the specific connection structure between the upper end of the left net support frame 91 and the upper end of the left column 51 includes: a seventh through hole is provided on the mounting plate of the left net support frame 91 facing the left column 51, and a third threaded hole corresponding to the seventh through hole is provided on the upper end side wall of the left column 51, and a fifth connecting bolt 75 is passed through the corresponding third threaded hole and the seventh through hole, and the screw of the fifth connecting bolt 75 passes through the seventh through hole and is threadedly connected to the third threaded hole; in actual use, it is only necessary to unscrew the fifth connecting bolt 75 to easily separate the left column 51 from the left net support frame 91 for storage and storage. During installation, it is only necessary to pass the screw of the fifth connecting bolt 75 through the seventh through hole and then thread it into the third threaded hole to fix the left column 51 to the left net support frame 91, which is very convenient to install; Figure 7 As shown, the specific connection structure between the lower end of the left net support frame 91 and the left end of the goal rear base 2 includes: an eighth through hole is provided on the lower mounting plate of the left net support frame 91 facing the goal rear base 2, and a ninth through hole corresponding to the eighth through hole is provided on the top plate of the goal rear base 2 facing the left net support frame 91. A sixth connecting bolt 76 is passed through the corresponding eighth through hole and the ninth through hole. The screw of the sixth connecting bolt 76 passes through the ninth through hole from the eighth through hole and is then threadedly connected to the third connecting nut 83. In actual use, it is only necessary to first loosen and remove the third connecting nut 83, and then remove the sixth connecting bolt 76 to easily separate the goal rear base 2 from the left net support frame 91 for storage. During installation, it is only necessary to pass the screw of the sixth connecting bolt 76 from the eighth through hole through the ninth through hole, and then tighten the third connecting nut 83 on the sixth connecting bolt 76 to fix the goal rear base 2 to the left net support frame 91. The installation is very convenient.

[0030] In this embodiment, the specific connection structure between the upper end of the right net support frame 92 and the upper end of the right column 52 includes: a tenth through hole is provided on the mounting plate of the right net support frame 92 facing the right column 52, and a fourth threaded hole corresponding to the tenth through hole is provided on the upper end side wall of the right column 52, and a seventh connecting bolt 77 is passed through the corresponding fourth threaded hole and the tenth through hole, and the screw of the seventh connecting bolt 77 is threadedly connected to the fourth threaded hole after passing through the tenth through hole; in actual use, it is only necessary to unscrew the seventh connecting bolt 77 to easily separate the right column 52 from the right net support frame 92 for storage and accommodation. During installation, it is only necessary to pass the screw of the seventh connecting bolt 77 through the tenth through hole and then thread it into the fourth threaded hole to fix the right column 52 to the right net support frame 92, which is very convenient to install; Figure 5 As shown, the specific connection structure between the lower end of the right net support frame 92 and the right end of the goal rear base 2 includes: an eleventh through hole is provided on the lower mounting plate of the right net support frame 92 facing the goal rear base 2, and a twelfth through hole corresponding to the eleventh through hole is provided on the top plate of the goal rear base 2 facing the right net support frame 92, and an eighth connecting bolt 78 is passed through the corresponding eleventh through hole and the twelfth through hole, and the screw of the eighth connecting bolt 78 passes through the twelfth through hole from the eleventh through hole and is threadedly connected to the first connecting nut 84; in actual use, it is only necessary to loosen and remove the fourth connecting nut 84 first, and then remove the eighth connecting bolt 78 to easily separate the goal rear base 2 from the right net support frame 92 for storage and storage. During installation, it is only necessary to pass the screw of the eighth connecting bolt 78 through the twelfth through hole from the eleventh through hole, and then tighten the fourth connecting nut 84 on the eighth connecting bolt 78, so that the goal rear base 2 and the right net support frame 92 can be fixed, which is very convenient to install.

[0031] When in use, first assemble the water polo goal net, the rear base of the goal, the right base of the goal, the left base of the goal, the goal frame, the left net support frame and the right net support frame into a water polo goal, then place the assembled water polo goal in a water pool for water polo games, and then use an air pump or other inflating equipment to inject air into the air bags in the rear base 2, the left base 3 and the right base 4 of the goal, and adjust the air volume of the water polo goal base 2, the left base 3 and the right base 4 of the goal respectively. The buoyancy of the three parts in the water is increased until the upper surface of the water polo goal base as a whole is kept flush with the water surface m, so that the water polo goal is balanced and the height of the water polo goal above the water surface is kept at a distance h from the crossbeam of the goal frame to the water surface of 900 mm; when the water polo goal needs to be stored after the game, the water polo goal net 1, the goal rear base 2, the goal right base 4, the goal left base 3, the goal frame, the left net support frame 91 and the right net support frame 92 are disassembled and stored, which greatly reduces the storage space and is convenient for storage.

[0032] The advantages of the present invention are as follows: (1) the base of the water polo goal is divided into three independent left, right and rear parts, and an inflatable air bag is placed inside each part. After the water polo goal is placed on the water surface, the buoyancy of the three parts of the water polo goal base in the water is adjusted by adjusting the amount of gas that rushes into the rear base of the goal, the left base of the goal and the right base of the goal respectively, until the upper surface of the water polo goal base as a whole is kept flush with the water surface, so that the water polo goal is kept balanced and the height of the water polo goal on the water surface is kept at a distance of 900mm from the crossbeam of the goal frame to the water surface. The height adjustment operation of the water polo goal on the water surface is very convenient and saves time and effort; and because the rear base of the goal The bottoms of the base, the left base of the goal and the right base of the goal are all open, so that during installation, workers can easily place the air bags in each base. In addition, during the use of the water polo goal, each air bag is in direct contact with water. Under the action of water buoyancy, each air bag will be confined in each base, which can effectively prevent each air bag from escaping from the corresponding base, thereby improving the stability of use; (3) The overall frame of the water polo goal is detachably assembled from the water polo goal net, the rear base of the goal, the right base of the goal, the left base of the goal, the goal frame, the left net support frame and the right net support frame. When storing, the various parts of the water polo goal can be disassembled and stored, which greatly reduces the storage space and is convenient for storage.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention shall still fall within the scope of protection required by the present invention.

Claims

1. A water polo goal, comprising a water polo goal base, a goal frame mounted on the water polo goal base, and a water polo goal net mounted on the goal frame, characterized in that: The water polo goal base is composed of a relatively independent goal rear base, a goal left base and a goal right base. The goal left base and the goal right base are respectively connected to the left and right ends of the goal rear base. The interiors of the goal rear base, the goal left base and the goal right base are all hollow and can form airbag accommodating chambers. The bottoms of the goal rear base, the goal left base and the goal right base are all open and connected to the corresponding airbag accommodating chambers. Inflatable and deflable airbags are all placed in the airbag accommodating chambers of the goal rear base, the goal left base and the goal right base.

2. A water polo goal according to claim 1, characterized in that: The specific connection structure between the rear base of the goal and the right base of the goal includes: a first through hole is provided on the side wall of the rear base of the goal facing the right base of the goal, a second through hole corresponding to the first through hole is provided on the side wall of the right base of the goal facing the rear base of the goal, a first connecting bolt is commonly penetrated through the corresponding first through hole and the second through hole, and the screw of the first connecting bolt is threadedly connected to the first connecting nut after passing through the second through hole from the first through hole; the specific connection structure between the rear base of the goal and the left base of the goal includes: a third through hole is provided on the side wall of the rear base of the goal facing the left base of the goal, a fourth through hole corresponding to the third through hole is provided on the side wall of the left base of the goal facing the rear base of the goal, a second connecting bolt is commonly penetrated through the corresponding third through hole and the fourth through hole, and the screw of the second connecting bolt is threadedly connected to the second connecting nut after passing through the fourth through hole from the third through hole.

3. A water polo goal according to claim 2, characterized in that: The goal frame comprises a left upright post and a right upright post arranged left and right, and a goal crossbar connecting the upper ends of the left upright post and the right upright post; the left upright post of the goal frame is connected to the left base of the goal; the right upright post of the goal frame is connected to the right base of the goal.

4. A water polo goal according to claim 3, characterized in that: The specific connection structure between the left post and the left base of the goal includes: a fifth through hole is provided on the top plate of the left base of the goal facing the left post, a first threaded hole corresponding to the fifth through hole is provided at the bottom of the left post, a third connecting bolt is commonly penetrated through the corresponding first threaded hole and the fifth through hole, the screw of the third connecting bolt passes through the fifth through hole and is threadedly connected to the first threaded hole; the specific connection structure between the right post and the right base of the goal includes: a sixth through hole is provided on the top plate of the right base of the goal facing the right post, a second threaded hole corresponding to the sixth through hole is provided at the bottom of the right post, a fourth connecting bolt is commonly penetrated through the corresponding second threaded hole and the sixth through hole, the screw of the fourth connecting bolt passes through the sixth through hole and is threadedly connected to the second threaded hole.

5. A water polo goal according to claim 3, characterized in that: It also includes a left net support frame and a right net support frame arranged on the left and right sides. The upper end of the left net support frame is connected to the upper end of the left post, and the lower end of the left net support frame is connected to the left end of the base behind the goal; the upper end of the right net support frame is connected to the upper end of the right post, and the lower end of the right net support frame is connected to the right end of the base behind the goal.

6. A water polo goal according to claim 5, characterized in that: The specific connection structure between the upper end of the left net support frame and the upper end of the left column includes: a seventh through hole is provided on the upper mounting plate of the left net support frame facing the left column, a third threaded hole corresponding to the seventh through hole is provided on the upper side wall of the left column, a fifth connecting bolt is commonly passed through the corresponding third threaded hole and the seventh through hole, the screw of the fifth connecting bolt passes through the seventh through hole and is threadedly connected to the third threaded hole; the specific connection structure between the lower end of the left net support frame and the left end of the goal rear base includes: an eighth through hole is provided on the lower mounting plate of the left net support frame facing the goal rear base, a ninth through hole corresponding to the eighth through hole is provided on the top plate of the goal rear base facing the left net support frame, a sixth connecting bolt is commonly passed through the corresponding eighth through hole and the ninth through hole, the screw of the sixth connecting bolt passes through the ninth through hole from the eighth through hole and is threadedly connected to the third connecting nut.

7. A water polo goal according to claim 5, characterized in that: The specific connection structure between the upper end of the right net support frame and the upper end of the right column includes: a tenth through hole is provided on the upper mounting plate of the right net support frame facing the right column, a fourth threaded hole corresponding to the tenth through hole is provided on the upper side wall of the right column, a seventh connecting bolt is commonly penetrated through the corresponding fourth threaded hole and the tenth through hole, the screw of the seventh connecting bolt passes through the tenth through hole and is threadedly connected to the fourth threaded hole; the specific connection structure between the lower end of the right net support frame and the right end of the goal rear base includes: an eleventh through hole is provided on the lower mounting plate of the right net support frame facing the goal rear base, a twelfth through hole corresponding to the eleventh through hole is provided on the top plate of the goal rear base facing the right net support frame, an eighth connecting bolt is commonly penetrated through the corresponding eleventh through hole and the twelfth through hole, the screw of the eighth connecting bolt passes through the twelfth through hole from the eleventh through hole and is threadedly connected to the first connecting nut.

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