Chest expander
By designing the elastic closing part in the tensioner to connect the handle and the elastic rope, the problem of easy breakage at the connection of the existing tensioner is solved, and the functions of uniform stress and diversified training, especially hip and leg training are achieved.
Patent Information
- Application Number
- CN202421454564.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing tensioners are prone to break at the connection between the tension ring and the elastic band. The use scenario is single, mainly limited to hand stretching training.
A tensioner is designed, and the first and second pulling hands are connected to the first and second elastic ropes respectively. The pulling hands have an elastic closing part. In natural state, the elastic ropes are close to each other. When stretching, the elastic ropes are separated. The force transitions to the elastic rope through the closing part to achieve uniform stress. The elastic ropes can be separated for hip and leg training.
It improves durability at the connection of the tensioner, increases the diversity of training scenarios, enables hip and leg exercises, and enhances flexibility and safety in use.
Smart Images
Figure CN223144024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fitness equipment, in particular to an elastic expander. Background Art
[0002] An elastic expander is a device used for tensile training during fitness. It usually consists of a spring or a rubber rope with grips at both ends. By stretching or pulling the elastic expander, various muscle groups can be trained, such as the chest, shoulders, arms, back, etc. The elastic expander can be used to enhance muscle strength, improve muscle endurance, increase muscle mass and shape the body. Common elastic expanders include arm bandages, elastic ropes, chest expanders, etc.
[0003] The existing elastic expander mainly consists of an elastic band and pull rings. The elastic band is a long strip-shaped elastic band, and pull rings are provided at both ends of the elastic band. The training purpose is achieved by holding the pull rings and pulling the elastic band. During actual use, the connection between the pull ring and the elastic band is prone to breakage, and the existing elastic expander with this structure is limited to using hand stretching to achieve the training purpose, with a single use scenario. Summary of the Utility Model
[0004] The utility model aims at the above problems and provides an elastic expander.
[0005] The technical solution adopted by the utility model is as follows:
[0006] The present application provides an elastic expander, including a first handle, a second handle, a first elastic rope and a second elastic rope;
[0007] The first handle has a first closing part, and two open ends of the first closing part are respectively connected to the first ends of the first elastic rope and the second elastic rope;
[0008] The second handle has a second closing part, and two open ends of the second closing part are respectively connected to the second ends of the first elastic rope and the second elastic rope;
[0009] The first closing part and the second closing part are made of elastic materials;
[0010] When the elastic expander is in the natural elongation state, the first elastic rope and the second elastic rope are mutually close under the action of the first closing part and the second closing part, and the elastic expander presents an "8" - shaped structure;
[0011] When a stretching movement is made away from the first elastic rope or the second elastic rope side through the first handle and the second handle, the first closing part and the second closing part are also stretched, and the first elastic rope and the second elastic rope are separated from each other, and the elastic expander presents a rectangular structure.
[0012] When doing stretching exercises with the tensioner, as the first and second closing parts are stretched, the forces acting on the first and second handles are also transmitted to the first and second elastic ropes through the first and second closing parts, making the force on the tensioner more evenly distributed, thus preventing the connection between the handle and the elastic rope from breaking easily. At the same time, the design of separating the first and second elastic ropes enables the tensioner provided in this application to also function as a hip lift ring. When in use, since the first and second elastic ropes can be separated from each other, it is easy to insert the legs into the first and second handles and stretch the tensioner through leg movements, thereby achieving hip and leg exercises.
[0013] Further, the first handle, the second handle, the first elastic rope, and the second elastic rope are integrally formed.
[0014] Further, the first handle, the second handle, the first elastic rope, and the second elastic rope are all made of soft rubber material. The soft rubber material of this application is one or a mixture of silicone, TPE, TPR, latex, PE, and rubber.
[0015] Further, the first handle and the second handle are symmetrically arranged with respect to the first elastic rope or the second elastic rope.
[0016] Further, the first handle further includes a first handle body, and the first handle body is connected to the first elastic rope and the second elastic rope through the first closing part;
[0017] The second handle further includes a second handle body, and the second handle body is connected to the first elastic rope and the second elastic rope through the second closing part.
[0018] Further, the first handle body and the second handle body are one of a "one"-shaped rod structure, a "U"-shaped handle structure, a trapezoidal handle structure, or a ring-shaped handle structure.
[0019] Further, both the first closing part and the second closing part are in an "eight"-shaped structure. The large port of the "eight"-shaped structure is used to connect to the first handle body or the second handle body, and the small port of the "eight"-shaped structure is used to connect to the first elastic rope or the second elastic rope.
[0020] Further, the first closing part is arc-transitionally connected to the first handle body, the first elastic rope, and the second elastic rope respectively;
[0021] The second closing part is arc-transitionally connected to the second handle body, the first elastic rope, and the second elastic rope respectively.
[0022] Further, first convex ribs are provided on the first elastic cord and the second elastic cord. The first convex ribs are arranged along the length directions of the first elastic cord and the second elastic cord, and the first convex ribs function as reinforcing ribs.
[0023] Further, second convex ribs are provided on the first handle and the second handle, and the second convex ribs are used for anti-slip.
[0024] Further, the first convex ribs and the second convex ribs are sequentially connected end to end to form convex rib rings. There are multiple convex rib rings, and the multiple convex rib rings are concentrically arranged.
[0025] When the tensioner is integrally formed, the design of forming convex rib rings by the first convex ribs and the second convex ribs is convenient for processing and production, and the function of the first convex ribs as reinforcing ribs is also enhanced.
[0026] Further, the side walls of the first handle body and the second handle body close to the first elastic cord or the second elastic cord are smooth planes.
[0027] Further, the radial dimensions of the first handle body and the second handle body are larger than the radial dimensions of the first elastic cord and the second elastic cord.
[0028] Further, from the first handle body to the first elastic cord or the second elastic cord, and from the second handle body to the first elastic cord or the second elastic cord, the radial dimensions of the first closing part and the second closing part gradually decrease. Such a setting is convenient for firmly holding the handle and also convenient for the elastic cord to be easily stretched.
[0029] The beneficial effects of the present utility model are as follows:
[0030] When doing stretching exercises, the forces acting on the first handle and the second handle are transmitted to the first elastic cord and the second elastic cord through the first closing part and the second closing part, making the force on the tensioner more uniform, so that the connection between the handle and the elastic cord is not easily broken. At the same time, the design of the separated arrangement between the first elastic cord and the second elastic cord enables the tensioner provided in this application to also have the function of a hip lift ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 is a schematic structural diagram (in the top view direction) of the tensioner according to an embodiment of the present utility model;
[0032] Figure 2 is Figure 1 a partial enlarged structural diagram of A in
[0033] The reference numerals in the drawings are as follows:
[0034] 10. First handle; 110. First closing part; 120. First handle body; 20. Second handle; 210. Second closing part; 220. Second handle body; 30. First elastic cord; 40. Second elastic cord; 510. First convex rib; 520. Second convex rib. Detailed implementation mode
[0035] The following combines each attached drawing to make a detailed description of the present utility model.
[0036] As Figure 1 and Figure 2 shown, the present application provides an expander, including a first handle 10, a second handle 20, a first elastic cord 30 and a second elastic cord 40;
[0037] The first handle 10 has a first closing part 110, and the two open ends of the first closing part 110 are respectively connected to the first ends of the first elastic cord 30 and the second elastic cord 40;
[0038] The second handle 20 has a second closing part 210, and the two open ends of the second closing part 210 are respectively connected to the second ends of the first elastic cord 30 and the second elastic cord 40;
[0039] The first closing part 110 and the second closing part 210 are made of elastic materials;
[0040] When the expander is in the natural elongation state, the first elastic cord 30 and the second elastic cord 40 are mutually close under the action of the first closing part 110 and the second closing part 210, making the expander in an "8" - shaped structure, and the hollow structures at both ends are convenient for hands or legs to stretch in;
[0041] When making a stretching movement away from the first elastic cord 30 or the second elastic cord 40 through the first handle 10 and the second handle 20, the first closing part 110 and the second closing part 210 are also stretched, and the first elastic cord 30 and the second elastic cord 40 are separated from each other, and the expander is in a rectangular structure.
[0042] When making a stretching movement through the expander, as the first closing part 110 and the second closing part 210 are stretched, the force acting on the first handle 10 and the second handle 20 is also transferred to the first elastic cord 30 and the second elastic cord 40 through the first closing part 110 and the second closing part 210, making the force - bearing of the expander more uniform, so that the connection part between the handle and the elastic cord is not easy to break. At the same time, the design of the separated arrangement between the first elastic cord 30 and the second elastic cord 40 makes the expander provided by the present application also have the function of a hip - lifting ring. When in use, since the first elastic cord 30 and the second elastic cord 40 can be separated from each other, the legs can be easily stretched into the first handle 10 and the second handle 20, and the expander can be stretched through the movement of the legs, thereby realizing hip and leg exercises.
[0043] During actual use, in the natural state, the first elastic cord 30 and the second elastic cord 40 can be close to each other or there can be a little gap between them.
[0044] In this embodiment, the first pull handle 10, the second pull handle 20, the first elastic cord 30 and the second elastic cord 40 are integrally formed.
[0045] In this embodiment, the first pull handle 10, the second pull handle 20, the first elastic cord 30 and the second elastic cord 40 are all made of soft rubber material.
[0046] In this embodiment, the soft rubber material is silicone.
[0047] In other embodiments, the soft rubber material is one or a mixture of TPE, TPR, latex, PE, rubber, etc.
[0048] In other embodiments, the first pull handle body 120 and the second pull handle body 220 can be made of non-elastic materials, and the first pull handle body 120 and the second pull handle body 220 are respectively bonded and formed with the first closing part 110 and the second closing part 210.
[0049] In this embodiment, the first pull handle 10 and the second pull handle 20 are symmetrically arranged with respect to the first elastic cord 30 or the second elastic cord 40.
[0050] In this embodiment, the first pull handle 10 further includes a first pull handle body 120, and the first pull handle body 120 is connected to the first elastic cord 30 and the second elastic cord 40 through the first closing part 110;
[0051] The second pull handle 20 further includes a second pull handle body 220, and the second pull handle body 220 is connected to the first elastic cord 30 and the second elastic cord 40 through the second closing part 210.
[0052] In this embodiment, the first pull handle body 120 and the second pull handle body 220 are in a "one"-shaped pull rod structure. In the natural state, a triangular accommodation space is formed between the "one"-shaped pull rod and the closing part to facilitate the hand or leg to extend in.
[0053] In other embodiments, the first pull handle body 120 and the second pull handle body 220 are one of a "U"-shaped pull handle structure, a trapezoidal pull handle structure or a ring-shaped pull handle structure.
[0054] In other embodiments, the first pull handle 10 and the second pull handle 20 can also be a ring-shaped structure with an opening, and the opening is the closing part.
[0055] In this embodiment, both the first closing part 110 and the second closing part 210 are in an "eight" - shaped structure. The large port of the "eight" - shaped structure is used to connect with the first handle body 120 or the second handle body 220, and the small port of the "eight" - shaped structure is used to connect with the first elastic cord 30 or the second elastic cord 40.
[0056] In this embodiment, the first closing part 110 is arc - transitionally connected to the first handle body 120, the first elastic cord 30, and the second elastic cord 40 respectively;
[0057] The second closing part 210 is arc - transitionally connected to the second handle body 220, the first elastic cord 30, and the second elastic cord 40 respectively.
[0058] In this embodiment, first convex ribs 510 are provided on the first elastic cord 30 and the second elastic cord 40. The first convex ribs 510 are arranged along the length direction of the first elastic cord 30 and the second elastic cord 40, and the first convex ribs 510 act as reinforcing ribs.
[0059] In this embodiment, second convex ribs 520 are provided on the first handle 10 and the second handle 20. The second convex ribs 520 are used for anti - skid.
[0060] In this embodiment, the first convex ribs 510 and the second convex ribs 520 are connected end - to - end in sequence to form convex rib rings. There are multiple convex rib rings, and the multiple convex rib rings are concentrically arranged.
[0061] When the tensioner is integrally formed, the design of forming convex rib rings by the first convex ribs 510 and the second convex ribs 520 is convenient for processing and production, and the function of the first convex ribs 510 as reinforcing ribs is also enhanced.
[0062] In this embodiment, the side walls of the first handle body 120 and the second handle body 220 close to the first elastic cord 30 or the second elastic cord 40 are smooth planes.
[0063] In this embodiment, the radial dimensions of the first handle body 120 and the second handle body 220 are larger than the radial dimensions of the first elastic cord 30 and the second elastic cord 40.
[0064] In this embodiment, from the first handle body 120 to the first elastic cord 30 or the second elastic cord 40, and from the second handle body 220 to the first elastic cord 30 or the second elastic cord 40, the radial dimensions of the first closing part 110 and the second closing part 210 gradually decrease. Such a setting is convenient for firmly holding the handle and also convenient for the elastic cord to be easily stretched.
[0065] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent protection scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, shall similarly be included within the protection scope of the present utility model.
Claims
1. A chest expander, characterized in that, It includes a first handle, a second handle, a first elastic cord, and a second elastic cord; The first handle has a first closing part, and two open ends of the first closing part are respectively connected to the first end of the first elastic cord and the first end of the second elastic cord; The second handle has a second closing part, and two open ends of the second closing part are respectively connected to the second end of the first elastic cord and the second end of the second elastic cord; The first closing part and the second closing part are made of elastic materials; When the tensioner is in the natural elongation state, the first elastic cord and the second elastic cord are close to each other under the action of the first closing part and the second closing part; When a stretching movement is made away from the first elastic cord or the second elastic cord through the first handle and the second handle, the first closing part and the second closing part are also stretched, and the first elastic cord and the second elastic cord are separated from each other.
2. A chest expander according to claim 1, characterized in that, The first handle, the second handle, the first elastic cord, and the second elastic cord are integrally formed.
3. A chest expander according to claim 1, wherein, The first handle, the second handle, the first elastic cord, and the second elastic cord are all made of soft rubber materials.
4. A chest expander according to claim 1, characterized in that, The first handle further includes a first handle body, and the first handle body is connected to the first elastic cord and the second elastic cord through the first closing part; The second handle further includes a second handle body, and the second handle body is connected to the first elastic cord and the second elastic cord through the second closing part.
5. A chest expander according to claim 4, characterized in that, The first handle body and the second handle body are one of an "I"-shaped rod structure, a "U"-shaped handle structure, a trapezoidal handle structure, or a ring-shaped handle structure.
6. A chest expander according to claim 4, characterized in that, Both the first closing part and the second closing part are in an "eight"-shaped structure. The large port of the "eight"-shaped structure is used to connect to the first handle body or the second handle body, and the small port of the "eight"-shaped structure is used to connect to the first elastic cord or the second elastic cord.
7. A chest expander according to claim 6, characterized in that, The first closing part is arc-transitionally connected to the first handle body, the first elastic cord, and the second elastic cord respectively; The second closing part is arc-transitionally connected to the second handle body, the first elastic cord, and the second elastic cord respectively.
8. A chest expander according to claim 1, characterized in that, First convex ribs are provided on the first elastic cord and the second elastic cord. The first convex ribs are arranged along the length directions of the first elastic cord and the second elastic cord, and the first convex ribs function as reinforcing ribs.
9. The tensioner according to claim 8, wherein, Second convex ribs are provided on the first handle and the second handle, and the second convex ribs are used for anti-slip.
10. A chest expander according to claim 9, characterized in that, The first convex ribs and the second convex ribs are sequentially connected end to end to form convex rib rings. There are multiple convex rib rings, and the multiple convex rib rings are concentrically arranged.