Dumbbell weight switching device

Abstract

The utility model discloses a dumbbell weight switching device relates to dumbbell technical field. A dumbbell weight switching device, including hand holds the pole and antiskid rubber cover, antiskid rubber cover fixedly covers the outside surface on hand holds the pole, locking anti -drop structure is located on hand holds the pole, and locking anti -drop structure includes a plurality of dumbbell piece, support square pole, plug rod and locking screw column, and through locking screw column drive plug rod inserts installation groove and mounting block and locks dumbbell piece, and the cooperation of clamping block and clamping groove, after locking screw column is tightened, and the blocking clamping block prevents its random movement, and this multiple locking and anti -loose structure can effectively avoid in the fitness process because of the action amplitude is big, the body swings and the like reason touch leads loose, overcomes the defect that traditional dumbbell nut is easy to loosen, and the weight piece can fall off, even under long time intense exercise and high -intensity training, can guarantee that dumbbell piece is always firm connection, ensures the continuity and safety of training.

Description

Technical Field

[0001] This utility model relates to the field of dumbbell technology, and in particular to a dumbbell weight switching device. Background Technology

[0002] With the increasing awareness of health, fitness has become an important way for people to pursue a healthy lifestyle. Dumbbells, as a flexible, convenient, and versatile fitness equipment, occupy a key position in both home fitness and commercial gyms. They can meet the diverse strength training needs of different groups of people at different fitness stages. Whether beginners are doing basic muscle training or professional fitness enthusiasts are carrying out high-intensity strength enhancement training, dumbbells can play an important role.

[0003] Existing dumbbells are prone to accidentally touching the nut during exercise due to the large range of motion and body swing, causing the nut to loosen. Once the nut loosens, the weight plate may fall off during exercise, which not only interrupts the training but may also cause serious injury to the user or those around them. Even if the nut is tightened before use, the friction between the threads will gradually decrease under prolonged strenuous exercise and high-intensity training, and the nut may still loosen. Moreover, this structure lacks an effective anti-loosening mechanism, making it difficult to ensure stability during various complex fitness movements. Therefore, we propose a dumbbell weight switching device. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a dumbbell weight switching device that can solve the problem that, during the exercise process, due to the large range of motion and body swinging, the nut is easily accidentally touched, causing it to loosen. Once the nut loosens, the weight plate may fall off during exercise, which will not only interrupt the training, but may also cause serious injury to the user or people around. Even if the nut is tightened very tightly before use, the friction between the threads will gradually decrease under long-term strenuous exercise and high-intensity training, and the nut may still loosen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dumbbell weight switching device, comprising: Hand grip and anti-slip rubber sleeve, the anti-slip rubber sleeve is fixedly fitted onto the outer surface of the hand grip; The locking and anti-slip structure is located on the handle bar. The locking and anti-slip structure includes multiple dumbbell plates, a support square rod, an insert rod, and a locking threaded post. The support square rod is fixedly connected to one side of the grip bar. Multiple mounting slots are provided on one side of the support square rod. Square sliding grooves are provided inside each of the dumbbell plates. The support square rod is slidably connected to the interior of these square sliding grooves. Mounting blocks are fixedly connected to the interior of each square sliding groove, and each mounting block is inserted into its corresponding mounting slot. A threaded hole is provided on the side of the support square rod away from the grip bar. The locking threaded post is threaded into the interior of this threaded hole. The insert rod is fixedly connected to the side of the locking threaded post near the grip bar. The end of the insert rod away from the locking threaded post slides into the interior of each of the multiple mounting slots. The insert rod is slidably connected to the interior of each of the multiple mounting blocks. A retaining groove is provided on one side of the support square rod, and a limiting sliding groove is provided at the bottom of the support square rod. The retaining groove communicates with the interior of the limiting sliding groove.

[0006] Preferably, the locking and anti-detachment structure further includes a rubber filler plate, a limiting slider, and a locking block. The limiting slider is interference-fitted with the inside of the limiting groove. The locking block is fixedly connected to the side of the limiting slider near the supporting square rod and is inserted into the inside of the locking groove. The rubber filler plate is fixedly connected to the side of the limiting slider away from the locking block and is slidably connected to the inside of multiple square grooves.

[0007] Preferably, there are two locking and anti-detachment structures, which are symmetrically arranged at both ends of the handle.

[0008] Preferably, the anti-slip rubber sleeve is made of rubber.

[0009] Preferably, both the limiting groove and the limiting slider are convex structures.

[0010] Preferably, the locking block contacts the surface of the locking threaded post.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This dumbbell weight switching device uses a locking threaded post to drive the insertion rod into the mounting slot and mounting block to lock the dumbbell plates. The locking block cooperates with the slot, and after the locking threaded post is tightened, it blocks the locking block to prevent it from moving freely. This multi-locking and anti-loosening structure can effectively prevent loosening caused by large movements or body swings during exercise. It overcomes the defects of traditional dumbbell nuts that are easy to loosen and weight plates that may fall off. Even under long-term strenuous exercise and high-intensity training, it can ensure that the dumbbell plates are always firmly connected, ensuring the continuity and safety of training. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the hand grip structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the supporting square rod of this utility model; Figure 4 This is a schematic diagram of the dumbbell plate structure of this utility model; Figure 5 This is a schematic diagram of the rubber filler plate structure of this utility model.

[0013] Reference numerals: 1. Hand grip bar; 2. Dumbbell plate; 3. Anti-slip rubber sleeve; 4. Support square bar; 5. Mounting groove; 6. Locking threaded post; 7. Insert rod; 8. Threaded hole; 9. Slot; 10. Limiting slide groove; 11. Square slide groove; 12. Mounting block; 13. Rubber filler plate; 14. Limiting slider; 15. Locking block. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0018] Please see Figures 1-5 This utility model provides a technical solution: a dumbbell weight switching device, comprising: The grip bar 1 and the anti-slip rubber sleeve 3 are fixedly fitted onto the outer surface of the grip bar 1. The anti-slip rubber sleeve 3 is made of rubber. A locking and anti-detachment structure is located on the handle bar 1; The locking and anti-slip structure includes multiple dumbbell plates 2, a support square rod 4, an insert rod 7, and a locking threaded post 6. The support square rod 4 is fixedly connected to one side of the grip bar 1. Multiple mounting slots 5 are opened on one side of the support square rod 4. Square sliding grooves 11 are opened inside the multiple dumbbell plates 2. The support square rod 4 is slidably connected to the interior of the multiple square sliding grooves 11. Mounting blocks 12 are fixedly connected inside the multiple square sliding grooves 11. The multiple mounting blocks 12 are inserted into the interior of the corresponding mounting slots 5. A threaded hole 8 is opened on the side of the support square rod 4 away from the grip bar 1. The locking threaded post 6 is threadedly connected to the interior of the threaded hole 8. The insert rod 7 is fixedly connected to the side of the locking threaded post 6 near the grip bar 1. The end of the insert rod 7 away from the locking threaded post 6 slides into the interior of the multiple mounting slots 5. The insert rod 7 is slidably connected to the interior of the multiple mounting blocks 12. A locking groove 9 is opened on one side of the support square rod 4. A limiting sliding groove 10 is opened at the bottom of the support square rod 4. The locking groove 9 communicates with the interior of the limiting sliding groove 10.

[0019] The locking and anti-disengagement structure also includes a rubber filler plate 13, a limiting slider 14, and a locking block 15. The limiting slider 14 is internally interference-fitted with the limiting slide groove 10. The locking block 15 is fixedly connected to the side of the limiting slider 14 near the supporting square rod 4 and is inserted into the slot 9. The rubber filler plate 13 is fixedly connected to the side of the limiting slider 14 away from the locking block 15 and is slidably connected to the interior of multiple square slide grooves 11. The locking block 15 is in contact with the surface of the locking threaded post 6. Both the limiting slide groove 10 and the limiting slider 14 are "convex" shaped structures.

[0020] There are two locking and anti-detachment structures, which are symmetrically arranged at both ends of the handle bar 1.

[0021] Furthermore, when using the device, the anti-slip rubber sleeve 3 is fixedly fitted onto the outer surface of the hand grip bar 1, providing the user with a comfortable grip and anti-slip effect, ensuring that the dumbbells will not slip during exercise. Each of the dumbbell plates 2 has a square groove 11 inside, and the supporting square bar 4 can slide into these square grooves 11 to achieve a preliminary connection between the dumbbell plates 2 and the supporting square bar 4. An installation block 12 is fixedly connected inside the square groove 11, and the installation block 12 can be inserted into the installation groove 5 of the supporting square bar 4 to further fix the position of the dumbbell plates 2.

[0022] When the dumbbell weight needs to be adjusted, the tightened locking threaded post 6 blocks the locking block 15 located in the slot 9, so the locking threaded post 6 needs to be rotated. The locking threaded post 6 will drive the insertion rod 7 to move outward, so that the insertion rod 7 is pulled out from the mounting slot 5 and the mounting block 12. When the locking threaded post 6 is unscrewed, it will release the limit on the locking block 15. Then, the limit slider 14 is pulled out from the limit slide groove 10, so that the locking block 15 is disengaged from the slot 9. At this time, the rubber filling plate 13 also moves accordingly. Then the rubber filling plate 13 can be pulled out from the multiple square slide grooves 11, releasing the lock on the dumbbell plate 2. This allows the user to drive the dumbbell plate 2 to disengage the mounting block 12 from the interior of the corresponding mounting slot 5, so that the dumbbell plate 2 can slide outside the support square rod 4, thereby facilitating the reduction and switching of the dumbbell plate 2.

[0023] The dumbbell plate 2 is locked by inserting the rod 7 into the mounting slot 5 and mounting block 12 through the locking threaded post 6. The locking block 15 cooperates with the slot 9 and blocks the locking block 15 after the locking threaded post 6 is tightened, preventing it from moving at will. This multi-locking and anti-loosening structure can effectively prevent loosening caused by large movements or body swings during fitness. It overcomes the defects of traditional dumbbell nuts being easy to loosen and the counterweight plates being possible to fall off. Even under long-term strenuous exercise and high-intensity training, the dumbbell plate 2 can be kept firmly connected, ensuring the continuity and safety of training.

[0024] Structural Description: Hand Grip Bar 1: Serves as the grip part of the dumbbell, connecting the support bars 4 on both sides to provide a grip fulcrum for the user; Anti-slip rubber sleeve 3: Made of rubber material, it is fixedly sleeved on the outer surface of the hand grip 1 to enhance the friction when gripping, prevent slipping during use, and improve grip comfort; Dumbbell plates 2: Multiple dumbbell plates 2 are slidably connected to the support bar 4 through square grooves 11. They are the core components that constitute the weight of the dumbbell. The total weight of the dumbbell can be adjusted by increasing or decreasing the number of plates. Support bar 4: It is fixedly connected to one side of the hand grip bar 1 and is used to support and install multiple dumbbell plates 2. The mounting groove 5 on its surface cooperates with the mounting block 12 of the dumbbell plate 2 to achieve positioning. Insert rod 7: It is fixedly connected to the locking threaded post 6 on the side near the hand grip rod 1, and can slide into the interior of multiple mounting slots 5 and mounting blocks 12 to lock the relative position of dumbbell plate 2 and support square rod 4; Locking threaded post 6: It is threaded into the threaded hole 8 of the support square rod 4. By rotating it, the extension and retraction of the insertion rod 7 can be controlled to lock or unlock the dumbbell plate 2. Mounting slot 5: Multiple mounting slots 5 are opened on one side of the support square rod 4 for insertion into the mounting block 12 of the dumbbell plate 2, and are used in conjunction with the insertion rod 7 to position the dumbbell plate 2. Square groove 11: It is formed inside multiple dumbbell plates 2 and is slidably connected to the support square bar 4 to ensure that the dumbbell plates 2 slide stably along the support square bar 4; Mounting block 12: It is fixedly connected inside multiple square sliding grooves 11 and plugged into the corresponding mounting grooves 5 to enhance the connection stability between the dumbbell plate 2 and the support square bar 4; Threaded hole 8: It is opened on the side of the support square rod 4 away from the hand grip rod 1, and is used to connect with the locking threaded post 6 to provide an installation base for the locking structure; Slot 9: Located on one side of the support square rod 4, it is connected to the limiting slide groove 10 and is used to accommodate the locking block 15, which works with the locking threaded post 6 to prevent disengagement. Limiting groove 10: It is formed at the bottom of the supporting square rod 4 and communicates with the slot 9. It is used to accommodate the limiting slider 14 and limit its sliding trajectory. Rubber filler plate 13: It is fixedly connected to the side of the limiting slider 14 away from the locking block 15 and is slidably connected to multiple square grooves 11 to fill the gaps between dumbbell plates 2 and enhance overall stability. Limiting slider 14: It is interference-fitted with limiting slide groove 10, which drives the locking block 15 and rubber filling plate 13 to move, and plays a limiting role on rubber filling plate 13 and locking block 15. Locking block 15: It is fixedly connected to the side of the limiting slider 14 near the supporting square rod 4, and is inserted into the locking groove 9 and in contact with the surface of the locking threaded post 6. It is used to assist in locking the threaded post 6 to prevent it from loosening.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dumbbell weight switching device, characterized in that, include: The grip bar (1) and the anti-slip rubber sleeve (3) are fixedly fitted onto the outer surface of the grip bar (1); A locking and anti-detachment structure is located on the handle (1); The locking and anti-slip structure includes multiple dumbbell plates (2), a support square rod (4), an insertion rod (7), and a locking threaded post (6). The support square rod (4) is fixedly connected to one side of the hand grip rod (1). Multiple mounting slots (5) are provided on one side of the support square rod (4). Square sliding grooves (11) are provided inside the multiple dumbbell plates (2). The support square rod (4) is slidably connected to the inside of the multiple square sliding grooves (11). Mounting blocks (12) are fixedly connected inside the multiple square sliding grooves (11). The multiple mounting blocks (12) are inserted into the inside of the corresponding mounting slots (5). Among them, the support rod (4) has a threaded hole (8) on the side away from the hand grip (1), the locking threaded column (6) is threadedly connected to the inside of the threaded hole (8), the insert rod (7) is fixedly connected to the side of the locking threaded column (6) near the hand grip (1), the end of the insert rod (7) away from the locking threaded column (6) slides into the inside of multiple mounting slots (5), the insert rod (7) slides with the inside of multiple mounting blocks (12), a slot (9) is provided on one side of the support rod (4), and a limiting slide groove (10) is provided at the bottom of the support rod (4), the slot (9) communicates with the inside of the limiting slide groove (10).

2. The dumbbell weight switching device according to claim 1, characterized in that: The locking and anti-detachment structure also includes a rubber filler plate (13), a limiting slider (14) and a locking block (15). The limiting slider (14) is internally interference-fitted with the limiting slide groove (10), and the locking block (15) is fixedly connected to the side of the limiting slider (14) near the supporting square rod (4). The card block (15) is inserted into the card slot (9), the rubber filling plate (13) is fixedly connected to the side of the limiting slider (14) away from the card block (15), and the rubber filling plate (13) is slidably connected to the interior of multiple square sliding grooves (11).

3. The dumbbell weight switching device according to claim 1, characterized in that: The number of locking and anti-detachment structures is two, and the two locking and anti-detachment structures are symmetrically arranged at both ends of the handle (1).

4. The dumbbell weight switching device according to claim 1, characterized in that: The anti-slip rubber sleeve (3) is made of rubber.

5. A dumbbell weight switching device according to claim 2, characterized in that: Both the limiting groove (10) and the limiting slider (14) are convex structures.

6. A dumbbell weight switching device according to claim 2, characterized in that: The locking block (15) contacts the surface of the locking threaded post (6).

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