Dumbbell convenient for increasing dumbbell pieces

Abstract

The utility model provides a dumbbell convenient to add dumbbell pieces, and relates to the field of dumbbells. The dumbbell with the dumbbell pieces convenient to increase comprises a dumbbell cross rod and dumbbell iron pieces, connecting mechanisms for fixing the dumbbell iron pieces are arranged at the two ends of the dumbbell cross rod, each connecting mechanism comprises a connecting plate and a sliding rod, a supporting shaft is fixedly connected to the middle of each connecting plate, and a limiting mechanism for moving the sliding rods is arranged in the middle of each supporting shaft. The limiting mechanism comprises a rotating rod, and the surface of the rotating rod is fixedly connected with a limiting clamping rod. According to the dumbbell with the dumbbell pieces convenient to increase and decrease, the limiting sliding blocks are limited through the supporting shafts, the limiting sliding blocks are driven by the sliding rods to retract and stretch out, when the limiting sliding blocks stretch out, dumbbell iron sheets are fixed to the surfaces of the supporting shafts, then the dumbbell pieces are detached and installed on the dumbbell, and the dumbbell piece increasing and decreasing efficiency is improved; and the sliding rod is limited through the limiting clamping rod, and the fixing capacity of the sliding rod is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dumbbell, concretely to a dumbbell convenient for increasing dumbbell pieces, and belongs to the dumbbell technical field. BACKGROUND

[0002] Dumbbell is a kind of simple equipment for enhancing muscle strength training, and is an auxiliary equipment for weight lifting and body building exercise, and is smaller than barbell, and is named dumbbell because of no sound during exercise, and the purpose of dumbbell is to be used for muscle strength training and muscle compound action training. Patients with low muscle strength caused by motor palsy, pain and long-term inactivity can hold dumbbell, and can use the weight of dumbbell to carry out active movement against resistance to train muscle strength.

[0003] The utility model discloses a kind of dumbbells that can prevent dumbbell piece from falling off, including dumbbell body, the dumbbell body inside includes hand grip, and hand grip outer side is fixedly connected with fixed chuck, the fixed chuck outer side is fixedly connected with connecting screw rod, and connecting screw rod outer side is detachably connected with dumbbell piece, the plug-in groove inside is detachably connected with plug-in block.The dumbbell that can prevent dumbbell piece from falling off increases the stability of overall connection, and it is convenient to install overall, and the overall can be stably fixed, prevent the condition that overall produces slack and falls off, increase overall practicability.

[0004] In order to exercise arm muscle, dumbbell will be used, the dumbbell in the above patent, although the stability of the whole is increased, but it is relatively cumbersome to disassemble and assemble dumbbell piece, increase the complexity of dumbbell piece disassembly and installation, reduce the convenience of dumbbell maintenance and use;For this reason, we provide a kind of dumbbell convenient for increasing dumbbell piece to solve the above problems. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] The utility model aims at providing a kind of dumbbell convenient for increasing dumbbell piece to solve the above problems to solve the problem that dumbbell piece disassembly and installation are relatively cumbersome in the prior art.

[0007] (II) technical scheme

[0008] The utility model is realized by the following technical scheme: a kind of dumbbell convenient for increasing dumbbell piece.

[0009] The utility model provides a dumbbell bar and dumbbell iron sheet, both ends of the dumbbell bar are provided with connecting mechanism of fixed dumbbell iron sheet, the connecting mechanism includes connecting plate and sliding rod, the middle part of connecting plate is fixedly connected with support shaft, the inside of support shaft is connected with limiting slide block of limiting dumbbell iron sheet, the middle part of support shaft is provided with limiting mechanism of moving sliding rod, the limiting mechanism includes rotating rod, the surface of rotating rod is fixedly connected with limiting clamping rod.

[0010] Preferably, the surface of the dumbbell bar is fixedly connected with an anti-skid sleeve, the connecting plate is fixedly connected with the dumbbell bar, and the dumbbell iron sheet is slidingly connected with the support shaft. By means of the connecting plate, the dumbbell iron sheet is limited, and the support shaft and the dumbbell bar are fixedly connected together.

[0011] Preferably, the middle part of the support shaft is provided with a sliding groove, and the sliding rod is slidingly connected with the sliding groove. The surface of the sliding rod is hingedly connected with a connecting rod, and the top end of the connecting rod is hingedly connected with the limiting slide block. By means of the sliding groove, the sliding rod is fixed, and the stability of the sliding rod is improved.

[0012] Preferably, the middle part of the dumbbell iron sheet is provided with a second limiting groove, and the limiting slide block is clamped with the second limiting groove. The middle part of the limiting slide block is fixedly connected with a first extension spring, and the first extension spring is fixedly connected with the sliding groove. By means of the first extension spring, a pushing force is provided for the limiting slide block, and the stability of the clamping of the limiting slide block and the second limiting groove is improved.

[0013] Preferably, the surface of the support shaft is slidingly connected with a fixing cover. The middle part of the fixing cover is provided with a first limiting groove, and the first limiting groove is matched with the limiting slide block. By means of the fixing cover, the excess limiting slide block is fixed when the dumbbell iron sheet is reduced.

[0014] Preferably, the surface of the support shaft is provided with a clamping groove, and the inside of the fixing cover is fixedly connected with a buckle. The buckle is clamped with the clamping groove. By means of the clamping groove, the buckle is fixed, and the fixing cover is fixed when the dumbbell iron sheet is fully installed.

[0015] Preferably, the rotating rod is rotationally connected with the sliding rod. The limiting clamping rod and the rotating rod are slidingly connected with the sliding groove. The middle part of the rotating rod is fixedly connected with a pulling ring. By means of the clamping of the limiting clamping rod and the sliding groove, the limiting slide block is extended out of the support shaft. When the limiting clamping rod is clamped with the surface of the support shaft, the limiting slide block is collected into the inside of the support shaft.

[0016] Preferably, the surface of the sliding rod is fixedly connected with a sliding ring. The surface of the sliding ring is fixedly connected with a second extension spring, and the second extension spring is fixedly connected with the sliding groove. By means of the second extension spring, a pushing force is provided for the sliding ring, and the sliding rod is pushed into the inside of the support shaft.

[0017] This invention provides a dumbbell with convenient addition of weight plates, which has the following beneficial effects:

[0018] 1. This device facilitates the addition of dumbbell plates. A support shaft limits the movement of a slider. A sliding rod moves the slider up and down. When the slider extends, the dumbbell plates are fixed to the support shaft surface, allowing for easy removal and installation of the dumbbell plates. This improves the efficiency of adding and removing dumbbell plates. A rotating rod pulls the sliding rod, and a limiting lever positions the sliding rod at different locations, enhancing its stability.

[0019] 2. This dumbbell with added weight plates uses a connecting plate to limit the dumbbell weight plates and fixes the support shaft to the dumbbell bar. The support shaft has square protrusions on its surface to fix the dumbbell weight plates, preventing them from sliding freely during use and improving the stability of the dumbbell. A sliding groove fixes the sliding rod, improving its sliding stability. The sliding rod causes the connecting rod to retract and extend the limiting slider. The limiting slider extends into the second limiting groove to fix the dumbbell weight plates. A first telescopic spring provides thrust to the limiting slider, improving the stability of the engagement between the limiting slider and the second limiting groove.

[0020] 3. This dumbbell, which facilitates the addition of dumbbell plates, uses a fixing cover to protect the support shaft and dumbbell plates. When reducing the number of dumbbell plates, the excess limiting slider is fixed, improving the protection of the limiting slider. A slot secures the buckle. When the dumbbell plates are fully installed, the fixing cover is secured. A pull ring allows for easy outward pulling of the limiting rod. The limiting rod engages with the sliding groove, causing the limiting slider to extend out of the support shaft. When the limiting rod engages with the support shaft surface, the limiting slider retracts into the support shaft. A second telescopic spring provides thrust to the sliding ring, further pushing the sliding rod into the support shaft. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the support shaft structure of this utility model;

[0023] Figure 3 This is an exploded view of the limiting mechanism structure of this utility model;

[0024] Figure 4 This utility model Figure 2 Enlarged view of the structure of part A.

[0025] [Explanation of Key Component Symbols]

[0026] 1, dumbbell bar; 2, anti-skid sleeve; 3, dumbbell iron piece;

[0027] 4, connecting mechanism; 401, connecting plate; 402, support shaft; 403, fixed cover; 404, first limiting groove; 405, second limiting groove; 406, sliding groove; 407, sliding rod; 408, connecting rod; 409, limiting sliding block; 410, first telescopic spring; 411, clamping groove; 412, buckle;

[0028] 5, limiting mechanism; 501, rotating rod; 502, pulling ring; 503, limiting clamping rod; 504, sliding ring; 505, second telescopic spring. DETAILED DESCRIPTION

[0029] The utility model discloses a kind of dumbbells of being convenient for increasing dumbbell piece.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , including dumbbell bar 1 and dumbbell iron piece 3, the both ends of dumbbell bar 1 are provided with the connecting mechanism 4 of fixed dumbbell iron piece 3, and the connecting mechanism 4 includes connecting plate 401 and sliding rod 407, the middle part of connecting plate 401 is fixedly connected with support shaft 402, the inside of support shaft 402 is slidably connected with limiting sliding block 409 for limiting dumbbell iron piece 3, limiting sliding block 409 is positioned by support shaft 402, limiting sliding block 409 is retracted and extended by sliding rod 407, when limiting sliding block 409 extends, dumbbell iron piece 3 is fixed on the surface of support shaft 402, then dumbbell piece is disassembled and installed on dumbbell, improve the efficiency of dumbbell piece increase and reduce.

[0031] The surface of dumbbell bar 1 is fixedly connected with anti-skid sleeve 2, connecting plate 401 is fixedly connected with dumbbell bar 1, dumbbell iron piece 3 is slidably connected with support shaft 402, through anti-skid sleeve 2, user is convenient to grip dumbbell, improve the stability of dumbbell use, limiting dumbbell iron piece 3 by connecting plate 401, and support shaft 402 is fixedly connected with dumbbell bar 1, and the surface of support shaft 402 has square protrusion, can be fixed dumbbell iron piece 3, avoid the random sliding of dumbbell iron piece 3 when using, improve the stability of dumbbell use.

[0032] The middle part of support shaft 402 is provided with sliding groove 406, and sliding rod 407 is slidably connected with sliding groove 406, the surface of sliding rod 407 is hingedly connected with connecting rod 408, and the top end of connecting rod 408 is hingedly connected with limiting sliding block 409, sliding rod 407 is fixed by sliding groove 406, improve the stability of sliding rod 407 sliding, make connecting rod 408 drive limiting sliding block 409 retract and extend by sliding rod 407 sliding.

[0033] The middle part of the dumbbell iron sheet 3 is provided with a second limiting groove 405, and the limiting sliding block 409 is connected with the second limiting groove 405, the middle part of the limiting sliding block 409 is fixedly connected with a first extension spring 410, and the first extension spring 410 is fixedly connected with the sliding groove 406, the limiting sliding block 409 is inserted into the second limiting groove 405 to fix the dumbbell iron sheet 3, and the first extension spring 410 provides a thrust to the limiting sliding block 409 to improve the stability of the limiting sliding block 409 and the second limiting groove 405.

[0034] The surface of the supporting shaft 402 is slidably connected with a fixing cover 403, the middle part of the fixing cover 403 is provided with a first limiting groove 404, and the first limiting groove 404 is matched with the limiting sliding block 409, the fixing cover 403 is used to protect the supporting shaft 402 and the dumbbell iron sheet 3, and when the dumbbell iron sheet 3 is reduced, the fixing cover 403 is fixed through the limiting sliding block 409 and the first limiting groove 404, the protection of the limiting sliding block 409 and the limiting of the dumbbell iron sheet 3 are improved.

[0035] The surface of the supporting shaft 402 is provided with a clamping groove 411, the inside of the fixing cover 403 is fixedly connected with a buckle 412, and the buckle 412 is connected with the clamping groove 411, the buckle 412 is fixed through the clamping groove 411, and the fixing cover 403 is fixed when the dumbbell iron sheet 3 is fully installed.

[0036] Please refer to Figure 3 The middle part of the supporting shaft 402 is provided with a limiting mechanism 5 of the moving sliding rod 407, the limiting mechanism 5 comprises a rotating rod 501, the surface of the rotating rod 501 is fixedly connected with a limiting clamping rod 503, the sliding rod 407 is pulled through the rotating rod 501, the sliding rod 407 is limited through the limiting clamping rod 503 at different positions, and the fixing ability of the sliding rod 407 is improved.

[0037] The rotating rod 501 is rotatably connected with the sliding rod 407, the limiting clamping rod 503 and the rotating rod 501 are slidably connected with the sliding groove 406, the middle part of the rotating rod 501 is fixedly connected with a pulling ring 502, the limiting clamping rod 503 is conveniently pulled outward through the pulling ring 502, the limiting sliding block 409 is extended out of the supporting shaft 402 through the limiting clamping rod 503 and the sliding groove 406, and the limiting sliding block 409 is collected into the supporting shaft 402 when the limiting clamping rod 503 is connected with the surface of the supporting shaft 402.

[0038] The surface of the sliding rod 407 is fixedly connected with a sliding ring 504, the surface of the sliding ring 504 is fixedly connected with a second extension spring 505, and the second extension spring 505 is fixedly connected with the sliding groove 406, the sliding ring 504 is provided with a thrust through the second extension spring 505, and the sliding rod 407 is pushed into the supporting shaft 402.

[0039] The utility model discloses when using: through the square protruding of support axle 402 surface, limit dumbbell iron sheet 3, avoid using at will dumbbell iron sheet 3 rotates, when needing to replace or add dumbbell iron sheet 3, first pull out rotating rod 501 by pulling ring 502 and drive limit sliding block 409 to withdraw support axle 402 inside through sliding rod 407 and connecting rod 408, then rotate rotating rod 501, make limit card bar 503 with the surface of support axle 402 and connect, conveniently replace or increase dumbbell iron sheet 3, after dumbbell iron sheet 3 installation is completed, rotate rotating rod 501, provide the thrust to sliding ring 504 through second telescopic spring 505, make limit card bar 503 slide into sliding groove 406 inside, simultaneously, provide the thrust to limit sliding block 409 through first telescopic spring 410, make limit sliding block 409 with second limit slot 405 and connect, and then fix dumbbell iron sheet 3, through above -mentioned device, reduce the efficiency of dumbbell piece increase, improve the convenience of dumbbell use.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dumbbell with convenient addition of weight plates, comprising a dumbbell bar (1) and dumbbell plates (3), characterized in that: Both ends of the dumbbell bar (1) are provided with a connecting mechanism (4) for fixing dumbbell plates (3). The connecting mechanism (4) includes a connecting plate (401) and a sliding rod (407). A support shaft (402) is fixedly connected to the middle of the connecting plate (401). A limiting slider (409) for limiting the dumbbell plates (3) is slidably connected inside the support shaft (402). A limiting mechanism (5) for moving the sliding rod (407) is provided in the middle of the support shaft (402). The limiting mechanism (5) includes a rotating rod (501). A limiting lever (503) is fixedly connected to the surface of the rotating rod (501).

2. The dumbbell with convenient addition of weight plates according to claim 1, characterized in that: The surface of the dumbbell bar (1) is fixedly connected to an anti-slip sleeve (2), the connecting plate (401) is fixedly connected to the dumbbell bar (1), and the dumbbell sheet (3) is slidably connected to the support shaft (402).

3. A dumbbell with convenient addition of weight plates according to claim 1, characterized in that: The support shaft (402) has a sliding groove (406) in the middle, and the sliding rod (407) is slidably connected to the sliding groove (406). The surface of the sliding rod (407) is hinged to a connecting rod (408), and the top end of the connecting rod (408) is hinged to the limiting slider (409).

4. A dumbbell with convenient addition of weight plates according to claim 3, characterized in that: The dumbbell sheet (3) has a second limiting groove (405) in the middle, and the limiting slider (409) is engaged with the second limiting groove (405). The limiting slider (409) is fixedly connected to the middle of a first telescopic spring (410), and the first telescopic spring (410) is fixedly connected to a sliding groove (406).

5. A dumbbell with convenient addition of weight plates according to claim 1, characterized in that: The surface of the support shaft (402) is slidably connected to a fixing cover (403), and a first limiting groove (404) is provided in the middle of the fixing cover (403), and the first limiting groove (404) is adapted to the limiting slider (409).

6. A dumbbell with convenient addition of weight plates according to claim 5, characterized in that: The surface of the support shaft (402) is provided with a slot (411), and the inside of the fixing cover (403) is fixedly connected with a buckle (412), and the buckle (412) engages with the slot (411).

7. A dumbbell with convenient addition of weight plates according to claim 3, characterized in that: The rotating rod (501) is rotatably connected to the sliding rod (407), and both the limiting rod (503) and the rotating rod (501) are slidably connected to the sliding groove (406). A pull ring (502) is fixedly connected to the middle of the rotating rod (501).

8. A dumbbell with convenient addition of weight plates according to claim 3, characterized in that: A sliding ring (504) is fixedly connected to the surface of the sliding rod (407), and a second telescopic spring (505) is fixedly connected to the surface of the sliding ring (504), and the second telescopic spring (505) is fixedly connected to the sliding groove (406).

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