A quick-release modular dumbbell
By using a quick-release design for the dumbbell plates and grips, and combining a return spring and an electromagnet, the problem of easy wear and corrosion of existing dumbbell plate fixings is solved, enabling quick replacement and safe use of dumbbell plates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG YOULI SPORTING GOODS
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
The existing dumbbell plates are prone to wear and loosening, and the threads are susceptible to corrosion, making disassembly difficult and unable to meet the need for flexible weight changes.
The dumbbell plate mechanism and the grip mechanism are connected by through slots and splicing slots. The combination of return spring and electromagnet enables quick splicing and disassembly. The hexagonal structure and elastic rubber design ensure stability and safety.
It enables quick assembly and disassembly of dumbbell plates and grips, improving efficiency and safety, avoiding wear and corrosion, and allowing for flexible replacement to meet different weight requirements.
Smart Images
Figure CN224462185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dumbbell technology, and more specifically to a modular dumbbell that can be quickly assembled and disassembled. Background Technology
[0002] Dumbbells are an auxiliary tool for weightlifting and fitness training, used to enhance muscle strength. Because of their bell-shaped structure, they are silent during exercise, hence the name dumbbells. They have the functions of strengthening arm muscles, losing weight, helping to prevent diseases, helping to improve sleep quality, and shaping the body.
[0003] Current technology has shortcomings: In order to improve the flexibility of dumbbells, dumbbell plates are mostly detachable, making it easy to replace dumbbell plates to meet different weight requirements; however, most existing dumbbells use threads to fasten the dumbbell plates to the handle with nuts; however, bolts rely on friction to fix them, which is prone to wear and loosening after repeated use, and the threads are prone to corrosion, making them impossible to disassemble. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular dumbbell that can be quickly assembled and disassembled, so as to solve the problems existing in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular dumbbell for quick assembly and disassembly, comprising a dumbbell plate mechanism and a grip mechanism. The inner side wall of the dumbbell plate mechanism is movably connected to the side of the grip mechanism. The dumbbell plate mechanism includes a mounting box, a top cover is movably connected to the side of the mounting box, a through groove is formed on the side of the mounting box, a splicing post is fixedly connected to the side of the top cover corresponding to the through groove, a splicing groove is formed on the side of the splicing post, the grip mechanism includes a grip body, an anti-slip sleeve is fixedly fitted to the side of the grip body, a limit protrusion is fixedly connected to the side of the anti-slip sleeve, a mounting post is fixedly connected to the side of the grip body, a second mounting hole is formed at the top of the mounting post, a return spring is fixedly connected to the bottom of the second mounting hole, a fixing pin is fixedly connected to the top of the return spring, and a fixing hole is formed on the side of the splicing groove corresponding to the fixing pin.
[0006] Furthermore, a counterweight is movably connected to the inner side wall of the mounting box, and a through hole is provided on the side of the counterweight. The side of the through hole is movably connected to the side of the limiting post.
[0007] Furthermore, the mounting post has a rectangular structure, the dumbbell plate mechanism has a regular hexagonal structure, and elastic rubber is fixedly connected to the side of the dumbbell plate mechanism.
[0008] Furthermore, the side of the splicing column is movably connected to the inner wall of the side of the limiting column, the side of the splicing column is fixedly connected with an elastic clip, and the inner wall of the side of the limiting column is provided with a slot.
[0009] Furthermore, a first mounting hole is provided at the bottom end of the second mounting hole, an electromagnet is fixedly connected to the side of the first mounting hole, a connecting rod is fixedly connected to the bottom end of the fixing pin, an iron plate is fixedly connected to the bottom end of the connecting rod, and a control switch is fixedly connected to the side of the mounting post.
[0010] Furthermore, the side of the through groove is provided with a first arc angle, the side of the splicing column is provided with a second arc angle, and the bottom of the side of the fixing pin is provided with a slope.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. This utility model uses a through groove and a splicing groove to fit the dumbbell plate mechanism onto the mounting post, and makes the side of the mounting box tightly fit against the side of the anti-slip sleeve. At this time, the return spring pushes the fixing pin to insert the fixing pin into the fixing hole to fix the top cover, and the top cover presses the mounting box to complete the fixation of the dumbbell plate mechanism. This realizes the quick splicing and installation of the dumbbell plate mechanism and the grip mechanism. When it is necessary to disassemble the dumbbell plate mechanism, the electromagnet is energized by the control switch to generate magnetic force, which in turn generates attraction force on the iron plate, causing the connecting rod to drive the fixing pin into the second mounting hole, which facilitates the removal of the mounting post from the splicing groove, thereby separating the dumbbell plate mechanism from the grip mechanism, which helps to improve work efficiency.
[0013] 2. This utility model uses a suitable number of counterweights placed inside the mounting box according to usage requirements to maintain a suitable weight for the dumbbell plate mechanism. The dumbbell plate mechanism has a regular hexagonal structure to prevent it from rolling along the ground. Elastic rubber is fixedly connected to the sides of the dumbbell plate mechanism, which serves as a buffer to reduce damage caused by collisions, thereby improving the safety and practicality of the dumbbell. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the grip mechanism structure of this utility model;
[0016] Figure 3 This is an exploded view of the dumbbell plate mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the mounting box structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the top cover structure of this utility model;
[0019] Figure 6 This is a cross-sectional structural diagram of the fixing pin of this utility model.
[0020] The attached figures are labeled as follows: 1. Dumbbell plate mechanism; 101. Mounting box; 102. Top cover; 103. Limiting post; 104. Counterweight block; 105. Splicing groove; 106. Splicing post; 107. Through hole; 108. Fixing hole; 109. Through groove; 110. First arc angle; 111. Second arc angle; 112. Elastic retaining strip; 2. Grip mechanism; 201. Grip body; 202. Mounting post; 203. Fixing pin; 204. Return spring; 205. Iron sheet; 206. First mounting hole; 207. Second mounting hole; 208. Connecting rod; 209. Electromagnet; 210. Anti-slip sleeve; 211. Limiting protrusion; 212. Control switch; 213. Inclined surface. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The modular dumbbell with quick assembly and disassembly involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Reference Figures 1 to 6This utility model provides a modular dumbbell that can be quickly assembled and disassembled, including a dumbbell plate mechanism 1 and a grip mechanism 2. The inner side wall of the dumbbell plate mechanism 1 is movably connected to the side of the grip mechanism 2. The dumbbell plate mechanism 1 includes a mounting box 101, a top cover 102 movably connected to the side of the mounting box 101, a through groove 109 on the side of the mounting box 101, and a splicing post 106 fixedly connected to the side of the top cover 102 at the position corresponding to the through groove 109. A splicing groove 105 is formed on the side of the splicing post 106. The grip mechanism 2 includes a grip body 201, an anti-slip sleeve 210 fixedly sleeved on the side of the grip body 201, a limit protrusion 211 fixedly connected to the side of the anti-slip sleeve 210, and a mounting post 202 fixedly connected to the side of the grip body 201. A second mounting hole is formed at the top of the mounting post 202. 207. A return spring 204 is fixedly connected to the bottom end of the second mounting hole 207, and a fixing pin 203 is fixedly connected to the top end of the return spring 204. A fixing hole 108 is opened on the side of the splicing groove 105 corresponding to the position of the fixing pin 203. In use, the top cover 102 covers the side of the mounting box 101, and the splicing post 106 is inserted into the limiting post 103. Then, the dumbbell plate mechanism 1 is put on the mounting post 202 through the through groove 109 and the splicing groove 105, and the side of the mounting box 101 is pressed tightly against the side of the anti-slip sleeve 210. At this time, the return spring 204 pushes the fixing pin 203 to insert the fixing pin 203 into the fixing hole 108 to fix the top cover 102. The top cover 102 presses the mounting box 101 to complete the fixing of the dumbbell plate mechanism 1, realizing the quick splicing and installation of the dumbbell plate mechanism 1 and the grip mechanism 2.
[0023] The mounting box 101 has a counterweight 104 movably connected to the inner side wall. The counterweight 104 has a through hole 107 on its side. The side of the through hole 107 is movably connected to the side of the limiting post 103. According to the usage requirements, an appropriate number of counterweights 104 can be placed inside the mounting box 101 to keep the dumbbell plate mechanism 1 at an appropriate weight.
[0024] Among them, the mounting post 202 has a rectangular structure to facilitate the alignment of the fixing pin 203 with the fixing hole 108. The dumbbell plate mechanism 1 has a regular hexagonal structure to prevent the dumbbell plate mechanism 1 from rolling along the ground. The side of the dumbbell plate mechanism 1 is fixedly connected with elastic rubber, which is used as a buffer to reduce damage caused by collision.
[0025] The side of the splicing column 106 is movably connected to the inner side wall of the limiting column 103. An elastic clip 112 is fixedly connected to the side of the splicing column 106. A slot is opened on the inner side wall of the limiting column 103. When the counterweight 104 is placed inside the mounting box 101 and the top cover 102 is placed on the side of the mounting box 101, after the splicing column 106 is inserted into the limiting column 103, the elastic clip 112 is inserted into the slot to prevent the top cover 102 from separating from the mounting box 101.
[0026] The bottom end of the second mounting hole 207 is provided with a first mounting hole 206. An electromagnet 209 is fixedly connected to the side of the first mounting hole 206. A connecting rod 208 is fixedly connected to the bottom end of the fixing pin 203. An iron plate 205 is fixedly connected to the bottom end of the connecting rod 208. A control switch 212 is fixedly connected to the side of the mounting post 202. When the dumbbell plate mechanism 1 needs to be disassembled, the electromagnet 209 is energized by the control switch 212 to generate magnetic force, thereby generating attraction force on the iron plate 205, causing the connecting rod 208 to drive the fixing pin 203 into the second mounting hole 207, so that the mounting post 202 can be moved out of the splicing groove 105, thereby separating the dumbbell plate mechanism 1 from the grip mechanism 2.
[0027] The through groove 109 has a first arc angle 110 on its side to facilitate the insertion of the fixing pin 203 into the through groove 109. The splicing column 106 has a second arc angle 111 on its side to facilitate the insertion of the splicing column 106 into the limiting column 103. The bottom end of the side of the fixing pin 203 has a bevel 213. When the mounting column 202 is inserted into the through groove 109, the bevel 213 contacts the anti-slip sleeve 210, so that the fixing pin 203 automatically retracts into the second mounting hole 207.
[0028] The working principle of this utility model is as follows: The top cover 102 is separated from the mounting box 101. A suitable number of counterweights 104 are placed inside the mounting box 101 according to usage requirements. Then, the top cover 102 is placed on top of the mounting box 101. At this time, the splicing post 106 is inserted into the limiting post 103, and the elastic clip 112 is inserted into the groove inside the limiting post 103, thereby fixing the top cover 102 to the side of the mounting box 101. The mounting post 202 is inserted into the through groove 109, and contacts the anti-slip sleeve 210 through the inclined surface 213, causing the fixing pin 203 to automatically retract into the second mounting hole 207. The dumbbell plate mechanism 1 is completely fitted into the mounting box 101. After the mounting post 202 is installed, the return spring 204 pushes the fixing pin 203 to insert the fixing pin 203 into the fixing hole 108 to fix the top cover 102. The top cover 102 presses against the mounting box 101 so that it is tightly attached to the side of the anti-slip sleeve 210, thus completing the fixation of the dumbbell plate mechanism 1. When the dumbbell plate mechanism 1 needs to be disassembled, the electromagnet 209 is energized by the control switch 212 to generate magnetic force, thereby generating attraction force on the iron plate 205, causing the connecting rod 208 to drive the fixing pin 203 into the second mounting hole 207, so that the mounting post 202 can be moved out of the splicing groove 105, thereby separating the dumbbell plate mechanism 1 from the grip mechanism 2.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular dumbbell that can be quickly assembled and disassembled, comprising a dumbbell plate mechanism (1), characterized in that, Also includes: The dumbbell plate mechanism (2) has its inner side wall movably connected to the side of the dumbbell plate mechanism (1). The dumbbell plate mechanism (1) includes a mounting box (101), and a top cover (102) is movably connected to the side of the mounting box (101). A through groove (109) is provided on the side of the mounting box (101). A splicing column (106) is fixedly connected to the side of the top cover (102) at the position corresponding to the through groove (109). A splicing groove (105) is provided on the side of the splicing column (106). The grip mechanism (2) includes a grip body (201). (201) has an anti-slip sleeve (210) fixedly fitted on its side. The anti-slip sleeve (210) has a limit protrusion (211) fixedly connected to its side. The grip body (201) has an installation post (202) fixedly connected to its side. The top of the installation post (202) has a second installation hole (207). The bottom of the second installation hole (207) has a return spring (204) fixedly connected to its bottom. The top of the return spring (204) has a fixing pin (203) fixedly connected to its top. The side of the splicing groove (105) has a fixing hole (108) corresponding to the position of the fixing pin (203).
2. The modular dumbbell with quick assembly and disassembly according to claim 1, characterized in that: The mounting box (101) has a counterweight (104) movably connected to the inner side wall. The counterweight (104) has a through hole (107) on its side, and the side of the through hole (107) is movably connected to the side of the limiting post (103).
3. A modular dumbbell for quick assembly and disassembly according to claim 1, characterized in that: The mounting post (202) is a rectangular structure, the dumbbell plate mechanism (1) is a regular hexagonal structure, and elastic rubber is fixedly connected to the side of the dumbbell plate mechanism (1).
4. A modular dumbbell for quick assembly and disassembly according to claim 1, characterized in that: The side of the splicing column (106) is movably connected to the inner wall of the side of the limiting column (103), and an elastic clip (112) is fixedly connected to the side of the splicing column (106). A slot is provided on the inner wall of the side of the limiting column (103).
5. A modular dumbbell for quick assembly and disassembly according to claim 1, characterized in that: The bottom end of the second mounting hole (207) is provided with a first mounting hole (206). An electromagnet (209) is fixedly connected to the side of the first mounting hole (206). A connecting rod (208) is fixedly connected to the bottom end of the fixing pin (203). An iron sheet (205) is fixedly connected to the bottom end of the connecting rod (208). A control switch (212) is fixedly connected to the side of the mounting post (202).
6. A modular dumbbell for quick assembly and disassembly according to claim 1, characterized in that: The side of the through groove (109) is provided with a first arc angle (110), the side of the splicing column (106) is provided with a second arc angle (111), and the bottom of the side of the fixing pin (203) is provided with a slope (213).