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US-12616889-B2 - Counterweight base for punching bag

US12616889B2US 12616889 B2US12616889 B2US 12616889B2US-12616889-B2

Abstract

A counterweight base for a punching bag, including a counterweight body, a conical connector, and a plurality of suction discs. The counterweight body includes a platform and an accommodating cavity. The upper part of the counterweight body protrudes to form a circular truncated cone, and the platform is disposed in the center of the top surface of the circular truncated cone. The accommodating cavity is disposed in the center of the bottom part of the counterweight body. The accommodating cavity includes a bottom opening, and is in the shape of a conical column. The conical connector is matched with the accommodating cavity in size and shape, and includes a flange base. A step is disposed in the bottom opening of the accommodating cavity. In a storage state of the counterweight base, the conical connector is disposed in the accommodating cavity, and the flange base is supported by the step.

Inventors

  • Huijin GAO

Assignees

  • Linyi Aibeijian Sports Goods Co., Ltd.

Dates

Publication Date
20260505
Application Date
20240819
Priority Date
20240731

Claims (6)

  1. 1 . A counterweight base for a punching bag, comprising a counterweight body, a conical connector, and a plurality of suction discs; wherein: the counterweight body is a one-piece barrel-shaped container in the form of a flat cylinder, and comprises a platform and an accommodating cavity; an upper part of the counterweight body protrudes to form a circular truncated cone, and the platform is disposed in a center of a top surface of the circular truncated cone; the accommodating cavity is disposed in a center of a bottom part of the counterweight body; the accommodating cavity comprises a bottom opening that tapers inward, and is in the shape of a conical column; the conical connector is matched with the accommodating cavity in size and shape, and comprises a flange base; a step is disposed in the bottom opening of the accommodating cavity; in a storage state of the counterweight base, the conical connector is disposed in the accommodating cavity, and the flange base is supported by the step; a plurality of first inbuilt nuts are disposed on the platform; the flange base comprises a plurality of mounting holes; in a use state of the counterweight base, the conical connector is fixed on the platform through the plurality of first inbuilt nuts passing through the plurality of mounting holes; and a plurality of second inbuilt nuts are disposed on a bottom end face of the counterweight base, and the plurality of suction discs are attached to the counterweight base through the plurality of second inbuilt nuts, respectively.
  2. 2 . The counterweight base for a punching bag of claim 1 , wherein a plurality of radial grooves are disposed on an inner side wall of the counterweight body and the bottom end face of the counterweight body; a plurality of strengthening ribs protrude from an outer surface of the conical connector; and the plurality of strengthening ribs are embedded in the radial grooves on the inner side wall of the counterweight body, respectively.
  3. 3 . The counterweight base for a punching bag of claim 1 , wherein a plurality of third inbuilt nuts are disposed on the step; a baffle plate is fixed on the step through the plurality of third inbuilt nuts; the suction discs are further disposed on the baffle plate; and a thickness of the baffle plate is equal to a depth of the step.
  4. 4 . The counterweight base for a punching bag of claim 1 , wherein a conical surface of the counterweight body below the platform is a decorative surface; and the decorative surface comprises a plurality of evenly distributed patterns with alternating uplifts and sags.
  5. 5 . The counterweight base for a punching bag of claim 1 , wherein the counterweight body is an integrated structure formed by plastic injection molding.
  6. 6 . The counterweight base for a punching bag of claim 1 , wherein the upper part of the counterweight body comprises a top opening and a cover.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS Pursuant to 35 U.S.C. § 119 and the Paris Convention Treaty, this application claims foreign priority to Chinese Patent Application No. 202421826325.0 filed Jul. 31, 2024, the contents of which, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P. C., Attn.: Dr. Matthias Scholl Esq., 245 First Street, 18th Floor, Cambridge, MA 02142. BACKGROUND The disclosure relates to the field of boxing devices, and more particularly to a counterweight base for a punching bag. Vertical punching bags for boxing usually include an upper practicing body and a lower counterweight base. The lower counterweight base, together with a variety of connectors attached to it, is larger than the upper practicing body in terms of diameter, resulting in a large overall packaging size, even exceeding the standard volume limitations, thereby increasing the logistics and warehousing costs. SUMMARY To solve the aforesaid problems, the disclosure provides a counterweight base for a punching bag with a compact size, so as to reduce the overall packaging volume, the logistics and distribution and warehousing costs. To achieve the above objective, the disclosure provides a counterweight base for a punching bag comprising a counterweight body, a conical connector, and a plurality of suction discs. The counterweight body is a one-piece barrel-shaped container in the form of a flat cylinder, and comprises a platform and an accommodating cavity; an upper part of the counterweight body protrudes to form a circular truncated cone, and the platform is disposed in a center of a top surface of the circular truncated cone; the accommodating cavity is disposed in a center of a bottom part of the counterweight body; the accommodating cavity comprises a bottom opening that tapers inward, and is in the shape of a conical column; the conical connector is matched with the accommodating cavity in size and shape, and comprises a flange base; a step is disposed in the bottom opening of the accommodating cavity; in a storage state of the counterweight base, the conical connector is disposed in the accommodating cavity, and the flange base is supported by the step; a plurality of first inbuilt nuts are disposed on the platform; the flange base comprises a plurality of mounting holes; in a use state of the counterweight base, the conical connector is fixed on the platform through the plurality of first inbuilt nuts passing through the plurality of mounting holes; and a plurality of second inbuilt nuts are disposed on a bottom end face of the counterweight base, and the plurality of suction discs are attached to the counterweight base through the plurality of second inbuilt nuts, respectively. In a class of this embodiment, a plurality of radial grooves are disposed on an inner side wall of the counterweight body and the bottom end face of the counterweight body; a plurality of strengthening ribs protrude from an outer surface of the conical connector; and the plurality of strengthening ribs are embedded in the radial grooves on the inner side wall of the counterweight body, respectively. In a class of this embodiment, a plurality of third inbuilt nuts are disposed on the step; a baffle plate is fixed on the step through the plurality of third inbuilt nuts; the suction discs are further disposed on the baffle plate; and a thickness of the baffle plate is equal to a depth of the step. In a class of this embodiment, a conical surface of the counterweight body below the platform is a decorative surface; and the decorative surface comprises a plurality of evenly distributed patterns with alternating uplifts and sags. In a class of this embodiment, the counterweight body is an integrated structure formed by plastic injection molding. In a class of this embodiment, the upper part of the counterweight body comprises a top opening and a cover. The following advantages are associated with the counterweight base for a punching bag of the disclosure. 1. The counterweight base adopts an embedded storage structure, and the conical connector is embedded into the bottom of the counterweight base, which effectively reduces the space occupation of the conical connector during transportation, reduces the overall packaging volume, effectively reduces the cost of logistics and distribution and warehousing, and at the same time, makes the packaging process more convenient, and more simple and efficient in the logistics turnover and transportation and material retrieval and assembly. 2. The counterweight base adopts a container structure, has a light weight, thus reducing the logistics and transportation costs. To further improve the stability of the counterweight base, a filler which can be locally sourced is injected through the top opening. The counterweight base is eas