Quick insertion piece anti-loosening dumbbell

Abstract

The utility model discloses an anti-loosening dumbbell capable of quickly inserting sheets, relates to the field of fitness equipment, and solves the problems that after the weight of a traditional dumbbell is adjusted, weight stacks can be extruded and fixed when the weight stacks are rotated and fed through a pressing sheet in threaded connection with one end of a grip, but the weight stacks cannot be loosened after the dumbbell falls off accidentally or is used frequently. The anti-loosening device comprises a holding pipe and anti-loosening structures installed at the two ends of the holding pipe, each anti-loosening structure comprises a round box, one side face of each round box is open and provided with an annular cover plate, and the center position of the other side face of each round box is fixedly connected with an insertion pipe; according to the dumbbell, the six annular threaded holes are formed in the inner embedding face of the round box, when the dumbbell falls off or is repeatedly placed, the possibility that the threaded connecting ends shake is reduced to the minimum, firmness after installation is ensured, the risk that the first weight stack and the second weight stack loosen is reduced, and therefore safety and stability in the using process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of body -building apparatus, concretely is a quick insert piece anti -loosening dumbbell. BACKGROUND

[0002] Dumbbell is a kind of body -building equipment, usually by two weight identical detachable or fixed weight's spheroid composition, middle connection handle or pole.Dumbbell can be used for various strength training, such as arm, shoulder, chest, back and leg muscle exercise.By changing the weight of dumbbell, the strength and fitness goal of different exercisers can be adapted.

[0003] Traditional dumbbell is adjusted weight, and the pressing piece of the thread connection at the end of the handle is rotated, and the pressing piece is extruded fixed weight piece, however when the dumbbell is accidentally dropped or frequently used, the impact force with the ground can cause the pressing piece of thread connection to loosen, thereby affecting the firmness of weight piece installation. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of quick insert piece anti-loosening dumbbell, which can reduce the risk of loosening of the first weight piece and the second weight piece, thereby ensuring the safety and stability during use, and can solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of quick insert piece anti-loosening dumbbell, including handle and the anti-loosening structure being installed at both ends, the anti-loosening structure includes round box, one side of round box is set as open and is equipped with annular cover plate, the other side center position is fixedly connected with insert pipe, the inlay surface of round box is provided with six annularly arranged threaded holes, the outer thread pipe is threadedly connected in it, the outer thread pipe one end side position is equipped with top block, the other end side is integrally connected with gear ring, the inner hole of outer thread pipe is provided with screw, the outer side wall of screw is provided with spring, screw is threadedly connected with top block, the center position of the inlay surface of round box is equipped with rotary groove, rotary block is rotatably connected in rotary groove, the outer side surface of rotary block is integrally connected with main gear, main gear is engaged with gear ring, the center position of main gear is provided with internal hexagon socket, the outer side wall of insert pipe is equipped with a plurality of first weight pieces and second weight pieces;The handle both ends are connected with the matching first weight piece by limiting structure.

[0006] Preferably, the outer side wall of the handle is fixedly provided with a non-slip net, the outer side wall of the round box is provided with non-slip lines, the side of the round box close to the insert pipe is provided with an annular groove, and a sealing ring is arranged in the annular groove.

[0007] Preferably, the outer side wall of the insert pipe is provided with a plurality of screw threads, the inner side wall of the handle at both ends is provided with matching internal threads, and a long slot is formed in the inner side wall of the handle at both ends.

[0008] Preferably, the limiting structure comprises a ring-shaped baffle, the outer side wall of the handle tube at both ends is fixedly sleeved with the ring-shaped baffle, a plurality of first mounting holes are formed in the side surface of the ring-shaped baffle and the first weight piece, and a first bolt is threadedly connected in the first mounting holes.

[0009] Preferably, the second mounting holes are formed in the embedded surface of the circular box and the ring-shaped cover plate, and a second bolt is threadedly connected in the second mounting holes.

[0010] Preferably, the outer side surface of the ring-shaped cover plate is provided with a rotation direction mark and an arrow mark.

[0011] Preferably, the bottom of the first weight piece and the second weight piece is designed as a plane, and the outer side wall is in a pattern shape.

[0012] Compared with the prior art, the utility model has the beneficial effects that when the dumbbell falls or is repeatedly placed, the possibility of shaking of the threaded connection end is reduced to the minimum, the firmness after installation is ensured, the risk of loosening of the first weight piece and the second weight piece is reduced, the safety and stability during use are ensured, the protrusion of the top block is limited from removing the entire outer side surface of the circular box by the screw and spring limiting effect, the scratch caused by the collision and friction between the adjacent second weight piece and the protruding top block is prevented, and the overall appearance of the second weight piece is affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is another angle three-dimensional structure schematic view of the utility model;

[0015] Figure 3 It is a partial explosion decomposition three-dimensional structure schematic view of the utility model;

[0016] Figure 4 It is an enlarged three-dimensional structure schematic view of the handle tube and the limiting structure in the utility model.

[0017] In the drawing: 1, handle tube; 101, anti-skid net; 2, limiting structure; 201, ring-shaped baffle; 202, first bolt; 203, first mounting hole; 3, anti-loosening structure; 301, ring-shaped cover plate; 302, circular box; 303, top block; 304, insertion pipe; 305, screw thread; 306, sealing ring; 307, spring; 308, screw; 309, threaded hole; 3010, external thread pipe; 3011, rotating block; 3012, rotating groove; 3013, second mounting hole; 3014, gear ring; 3015, main gear; 3016, second bolt; 3017, internal hexagonal hole; 3018, internal thread; 3019, long slot; 4, first weight piece; 5, second weight piece; 6, rotation direction mark; 7, arrow mark. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figure 1 、 Figure 2 and Figure 3 , a kind of quick insert piece anti-loosening dumbbell in the illustration, including handle 1 and the anti-loosening structure 3 of two ends are equipped with, the anti-loosening structure 3 includes round box 302, round box 302 one side is set with annular cover plate 301 and is equipped with the open side, another side center position is fixedly connected with insert pipe 304, the inlay surface of round box 302 is equipped with six annularly arranged screw holes 309, its inside is all screw-connected with external thread pipe 3010, external thread pipe 3010 one end side position is equipped with top block 303, the other end side is integrally formed with gear ring 3014, external thread pipe 3010 is provided with counterbore in the inside, and internally sleeved with screw 308, spring 307 is set on the outer side wall of screw 308, screw 308 is screw-connected with top block 303, the inlay surface center position of round box 302 is equipped with rotary groove 3012, rotary groove 3012 is rotatably connected with rotary block 3011 in the inside, rotary block 3011 outer side surface is integrally formed with main gear 3015, main gear 3015 is engaged with gear ring 3014, the center position of main gear 3015 is provided with internal hexagon hole 3017, insert pipe 304 outer side wall is sleeved with a plurality of first counterweight piece 4 and second counterweight piece 5;Handle 1 two ends are connected with the matching first counterweight piece 4 by limiting structure 2.

[0020] It is worth noting that the installation process of the first weight plate 4 and the second weight plate 5 can be achieved by rotating the round box 302, moving the insertion tube 304 out of the internal thread 3018 of the handle 1, so that the required number of first weight plates 4 and second weight plates 5 can be sleeved on the outer wall of the insertion tube 304, and then the screw thread 305 of the insertion tube 304 is screwed into the handle 1 to fix the position; then, using a hexagonal wrench inserted into the internal hexagonal hole 3017, rotating the main gear 3015 to drive the six gear rings 3014 to rotate synchronously, the outer threaded tube 3010 moves in the threaded hole 309, extruding the top block 303 to move the top block 303 towards the handle 1, which synchronously drives the screw 308 to move, and the spring 307 is compressed. Due to the rebounding force, the insertion tube 304 and the round box 302 will be subjected to a reverse force in the opposite direction, so that the insertion tube 304 is subjected to a reverse tension after being screwed in, thereby enhancing its firmness, so that when the dumbbell falls or is repeatedly placed, the possibility of shaking of the threaded connection end is minimized, ensuring the firmness after installation and reducing the risk of loosening of the first weight plate 4 and the second weight plate 5, thereby ensuring safety and stability during use. The limiting effect of the screw 308 and the spring 307 can limit the removal of the top block 303 to produce a protrusion on the outer side of the round box 302, preventing scratches caused by the collision and friction between the adjacent second weight plate 5 and the protruding top block 303, affecting the overall appearance of the second weight plate 5.

[0021] Please refer to Figure 1 and Figure 3 , the outer wall of the handle 1 is fixedly sleeved with a non-slip net 101, and the outer wall of the round box 302 is provided with non-slip patterns to increase the friction force of the hand contact, reduce the possibility of slipping of the palm contact, provide convenience for operation, and the round box 302 is provided with an annular groove on the side close to the insertion tube 304, and a sealing ring 306 is arranged inside the annular groove. The arrangement of the sealing ring 306 effectively improves the sealing performance of the structure, as the sealing ring 306 is arranged in the annular groove of the round box 302 and is in close contact with the adjacent second weight plate 5, which can prevent external liquids, gases or impurities from entering the inside; secondly, the elastic force of the sealing ring 306 enhances the firmness of the structure, when the sealing ring 306 is subjected to pressure, the elastic material thereof can deform, absorb and disperse external force, thereby increasing the friction force between the structures, making the connection after tensioning more stable and not easy to loosen; in addition, the sealing ring 306 also has a certain damping effect, the force generated by vibration or impact during the collision of the dumbbell with the ground can be absorbed by the elastic material of the sealing ring 306, thereby reducing the wear and noise between the equipment components.

[0022] Please refer to Figure 3 and Figure 4The outer side wall of the insertion tube 304 is provided with a plurality of screw threads 305, the inner side wall of the two ends of the holding tube 1 is provided with corresponding internal threads 3018, and the inner side wall of the two ends is provided with a long slot 3019. It is worth noting that the long slot 3019 allows the position of the screw thread 305 to be inserted, and by inserting and rotating the round box 302, the insertion tube 304 will rotate synchronously, the screw thread 305 will rotate and screw into the internal thread 3018, thereby achieving installation and fixation. By adjusting the number of first weight pieces 4 and second weight pieces 5, the thickness is superimposed, the lifting length of the insertion tube 304 can be quickly changed, the operation convenience is improved, and the protruding design of the screw thread 305 ensures the friction force when the palm is contacted, thereby preventing the overall length from sliding during the operation of the insertion tube 304, further improving the operation convenience.

[0023] Referring to Figure 1 , Figure 3 and Figure 4 , the limiting structure 2 includes an annular baffle 201, and the annular baffle 201 is fixedly sleeved on the outer side wall of the two ends of the holding tube 1. The annular baffle 201 and the side surface of the first weight piece 4 are both provided with a plurality of first mounting holes 203, and the first mounting holes 203 are internally threadedly connected with first bolts 202. It is worth noting that the first weight piece 4 adjacent to the annular baffle 201 is fixed by screwing in the first bolt 202, 一 After a certain number of first weight pieces 4 and second weight pieces 5 are installed, one side is limited and fixed by the annular baffle 201, and the other side is limited and fixed by the anti-loosening structure 3.

[0024] Referring to Figure 1 , the second mounting hole 3013 is provided in the inner embedding surface of the round box 302 and the annular cover plate 301, and the second mounting hole 3013 is internally threadedly connected with a second bolt 3016. It is worth noting that by sequentially rotating and unscrewing the second bolt 3016, the annular cover plate 301 is disassembled, the wear assembly inside the round box 302 is replaced, and the overall service life is prolonged.

[0025] Referring to Figure 2 , the annular cover plate 301 is provided with a rotation direction mark 6 and an arrow mark 7 on the outer side surface. The rotation direction mark 6 helps the user to quickly rotate and adjust, and the arrow mark 7 guides the user to quickly insert the screw thread 305 into the long slot 3019, thereby improving the operation convenience.

[0026] Referring to Figure 2 , the bottom of the first weight piece 4 and the second weight piece 5 is designed as a plane, and the outer side wall is in a pattern. The bottom plane is less likely to roll compared to the circular placement on the ground, ensuring the stability of the ground placement.

[0027] Working principle: when installing, first, the required number of first weight pieces 4 and second weight pieces 5 are sleeved on the outer side wall of the insertion tube 304, then the screw thread 305 of the insertion tube 304 is screwed into the inside of the handle 1 to fix the position, then the hexagonal wrench is inserted into the internal hexagonal hole 3017, the main gear 3015 is rotated, the six gear rings 3014 are synchronously rotated, the outer threaded tube 3010 moves in the threaded hole 309, the top block 303 is extruded, the top block 303 moves towards the handle 1, this action synchronously drives the screw 308 to move, and the spring 307 is compressed. Due to the rebound force, the insertion tube 304 and the round box 302 will be subjected to the opposite force in the opposite direction, so that the insertion tube 304 is subjected to the reverse tension after being screwed in, thereby enhancing the firmness.

[0028] When the dumbbell falls or is repeatedly placed, the possibility of shaking of the threaded connection end is minimized, the firmness after installation is ensured, the risk of loosening of the first weight piece 4 and the second weight piece 5 is reduced, thereby ensuring the safety and stability during use, and the limiting effect of the screw 308 and the spring 307 can limit the top block 303 to remove the entire round box 302 to form a protrusion on the outer side surface, preventing scratches caused by collision and friction between the adjacent second weight piece 5 and the protruding top block 303, affecting the overall appearance of the second weight piece 5.

[0029] It should be noted that the relative terms such as first and second in this text are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process-method-article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process-method-article or equipment.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes-modifications-replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A quick insert piece anti-loosening dumbbell comprising a handle (1) and an anti-loosening structure (3) mounted at both ends, characterized in that, The anti-loosening structure (3) comprises a round box (302), one side of which is provided with an open side and is provided with a ring-shaped cover plate (301), and the other side is fixedly connected with a pipe (304) at the center position, the inner embedding surface of the round box (302) is provided with six annularly arranged threaded holes (309), and the inside of each threaded hole is threadedly connected with an external threaded pipe (3010), one end of the external threaded pipe (3010) is provided with a top block (303), the other end is integrally connected with a gear ring (3014), the internal embedding surface of the external threaded pipe (3010) is provided with a counterbore, and the inside of the counterbore is sleeved with a screw (308), the outer side wall of the screw (308) is annularly provided with a spring (307), the screw (308) is threadedly connected with the top block (303), the center position of the internal embedding surface of the round box (302) is provided with a rotating groove (3012), the rotating groove (3012) is rotatably connected with a rotating block (3011), the outer side surface of the rotating block (3011) is integrally connected with a main gear (3015), the main gear (3015) is meshed with the gear ring (3014), the center position of the main gear (3015) is provided with an internal hexagonal hole (3017), and the outer side wall of the pipe (304) is sleeved with a plurality of first counterweight pieces (4) and second counterweight pieces (5); the two ends of the pipe (1) are connected with the matched first counterweight pieces (4) through the limiting structure (2).

2. A quick insert sleeve anti-loose dumbbell according to claim 1, characterized in that: The outer side wall of the pipe (1) is fixedly sleeved with an anti-skid net (101), the outer side wall of the round box (302) is provided with anti-skid lines, the side surface of the round box (302) close to the pipe (304) is provided with an annular groove, and the inside of the annular groove is provided with a sealing ring (306).

3. A quick insert sleeve anti-loose dumbbell according to claim 1, characterized in that: The outer side wall of the pipe (304) is provided with a plurality of annularly arranged threads (305), the inner side wall of the two ends of the pipe (1) is provided with matched internal threads (3018), and the inner side wall of the two ends of the pipe (1) is provided with a long slot (3019).

4. The quick insert sleeve anti-loose dumbbell according to claim 1, characterized in that: The limiting structure (2) comprises a ring-shaped baffle (201), the outer side wall of the two ends of the pipe (1) is fixedly sleeved with the ring-shaped baffle (201), a plurality of first installation holes (203) are formed in the side surface of the ring-shaped baffle (201) and the first counterweight piece (4), and the inside of the first installation holes (203) is threadedly connected with a first bolt (202).

5. The quick insert sleeve anti-loose dumbbell according to claim 1, wherein: The inner embedding surface of the round box (302) and the ring-shaped cover plate (301) are provided with second installation holes (3013), and the inside of the second installation holes (3013) is threadedly connected with a second bolt (3016).

6. A quick insert sleeve anti-loose dumbbell according to claim 1, characterized in that: The outer side surface of the ring-shaped cover plate (301) is provided with a rotating direction mark (6) and an arrow mark (7).

7. A quick insert sleeve anti-loose dumbbell according to claim 1, characterized in that: The bottom of the first counterweight piece (4) and the second counterweight piece (5) is designed as a plane, and the outer side wall thereof is in a pattern.

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