Dumbbell capable of rapidly adjusting counter weight

Abstract

The utility model relates to the field of dumbbells, in particular to a dumbbell capable of quickly adjusting counter weight, which comprises a grip and two groups of counter weight sheets, the two counter weight sheets closest to two ends of the grip are fixedly connected onto the grip, and a buckling mechanism is arranged between every two adjacent counter weight sheets. The clamping mechanism is used for preventing the two adjacent weight stacks from being separated in the axial direction, a linear driving module is arranged between the two weight stacks closest to the two ends of the grip, the linear driving module comprises a sliding rod, and clamping holes are formed in all the weight stacks; when the sliding rod is driven to extend into the clamping holes in one or more weight stacks, the weight stacks with the corresponding number are assembled and connected with the grip; the dumbbell solves the problem of increasing or decreasing the number of weight stacks of the dumbbell.

Description

Technical Field

[0001] The utility model relates to the field of dumbbells, in particular to a dumbbell with fast-adjustable counterweights. Background Art

[0002] Dumbbells are commonly used fitness equipment and are loved by all kinds of fitness enthusiasts. Existing adjustable dumbbells, such as the most common nut locking type, require users to remove or install weight plates one by one and then use a wrench to lock them, which is relatively cumbersome to use.

[0003] In order to facilitate the assembly and connection of different numbers of weight plates for dumbbells, the Chinese utility model CN218944251U realizes the adjustment of the number of weight plates by the transmission cooperation of several balls at both ends of the handle and the spiral grooves on the outer surface of the two telescopic rods. During operation, the handle still needs to be rotated several times to make the dumbbells assembled and connected with the appropriate number of weight plates. The operation process of adding and removing weight plates for traditional dumbbells is long, the efficiency of adjusting the number of weight plates is not high, and it is not convenient to use. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a dumbbell with fast weight adjustment, which solves the problem of increasing or decreasing the number of weight plates of the dumbbell.

[0005] The technical solution adopted by the utility model is: a dumbbell with quick-adjustable weights, comprising a handle and two sets of weight plates, the two weight plates closest to the two ends of the handle are fixedly connected to the handle, a buckle mechanism is arranged between two adjacent weight plates, the buckle mechanism is used to prevent the two adjacent weight plates from detaching in the axial direction, a linear drive module is arranged between the two weight plates closest to the two ends of the handle, the linear drive module comprises a slide bar, and each of the weight plates is provided with a snap-in hole; when the drive slide bar extends into the snap-in hole on one or more of the weight plates, a corresponding number of weight plates are assembled and connected with the handle.

[0006] Through the above technical scheme, when the utility model is in use, when the sliding rod is driven to extend into the snap-in holes on one or more of the counterweight plates, the snap-in mechanism is cooperated so that a corresponding number of counterweight plates are assembled and connected on the handle; the user only needs to drive the sliding rod to slide to different positions to realize the assembly and connection of a corresponding number of counterweight plates with the handle, and the operation process takes less time and is highly efficient.

[0007] Furthermore, the linear drive module includes a track and a slider, the track is fixedly connected between the two weight plates closest to the two ends of the handle, the slider is slidably connected to the track, and the slide bar is fixedly connected to the slider.

[0008] Through the above technical solution, the track is used to slidably connect the slider, the sliding connection relationship between the track and the slider is stable, the positioning is accurate, and the slide bar can be driven to slide by adjusting the position of the slider, which is very convenient to use.

[0009] Furthermore, two of the sliding blocks are correspondingly connected to one track, and the sliding rods connected to the two sliding blocks extend in opposite directions.

[0010] Through the above technical solution, the two sliders are respectively connected to a sliding rod, and the two sliders on the same track are driven to control the two sliding rods separately. After the two sliders are driven to the appropriate positions, the two sliding rods are extended into the clamping holes of the corresponding number of counterweight plates to realize the assembly and connection of the counterweight plates, which is very convenient to operate.

[0011] Further, the sliding rod includes a first rod and a second rod, the sliding block is fixed to the first rod, a first tooth-shaped portion is provided in the length direction of the first rod, and a second tooth-shaped portion is provided in the length direction of the second rod. A transmission gear is rotatably connected to the track, and the transmission gear is meshed with the first tooth-shaped portion and the second tooth-shaped portion at the same time. The first rod and the second rod are located on both sides of the transmission gear.

[0012] Through the above technical solution, when the user drives the slider to move the first rod member for a certain distance, the first toothed portion drives the transmission gear to rotate, and the transmission gear drives the second rod member to move the same distance in the opposite direction through the second toothed portion; the user drives the slider to make the first rod member and the second rod member connected on the same track slide in opposite directions so as to extend into the engaging holes on the two sets of weight plates, which is very convenient and quick to use.

[0013] Furthermore, it also includes a jumping bead, a mounting groove is provided on the sliding block, an elastic member is provided between the mounting groove and the jumping bead, a positioning through hole is provided on the track, and several positioning through holes are evenly arranged along the length direction of the track, and the elastic member is used to press the jumping bead toward the corresponding positioning through hole.

[0014] Through the above technical solution, during the sliding process of the slider, the jumping beads are successively connected to the positioning holes on the access path, and the user can clearly observe that the number of counterweight plates connected to the sliding rod is increasing, which is convenient for the user to quickly assemble and connect the appropriate number of counterweight plates with the sliding rod.

[0015] Furthermore, it also includes a numerical mark, and the number of the positioning through holes is an integer multiple of the number of the numerical mark.

[0016] Through the above technical solution, after the user slides the slider to the appropriate position, the user can refer to the corresponding numerical mark to understand the total weight of the handle after the corresponding number of weight plates are assembled, so that the user can clearly specify the appropriate dumbbell weight to select the exercise intensity.

[0017] Furthermore, it also includes a push block and a connecting rod connected to each other, the track is hollow, the slider is located in the track, a bar-shaped through hole is provided on the track, and the connecting rod passes through the bar-shaped through hole and is fixedly connected to the slider.

[0018] Through the above technical solution, the interior of the track is hollow for the connection of the slider, making the sliding connection state of the slider more convenient; the setting of the push block and the connecting rod ensures that the user can easily drive the slider to slide; when the connecting rod abuts the end of the strip through hole, the slider slides to the limit distance, and the strip through hole can limit the active stroke of the slider to avoid useless work and make the use more efficient.

[0019] Furthermore, the handle includes a rod and a fixed plate, two fixed plates are connected to the two ends of the rod, the two fixed plates are each fixedly connected to a counterweight plate, a fixed groove is provided on the fixed plate, and the two ends of the track are fixedly connected to the fixed grooves on the two fixed plates.

[0020] Through the above technical solution, both ends of the track are installed and connected in the fixing grooves, making the installation of the track more stable.

[0021] Furthermore, the mounting grooves are symmetrically arranged on two opposite sides of the slider, and two groups of bar-shaped through holes are correspondingly arranged on the track.

[0022] Through the above technical solution, the elastic parts and the jumping beads are correspondingly assembled in the two installation grooves on the slider. The slider is evenly stressed by the resistance feedback from the jumping beads during the sliding process, which makes the slider slide more smoothly and avoids the jumping beads from getting stuck due to uneven force when connected to a positioning through hole.

[0023] Furthermore, the snap mechanism is a buckle plate, which includes a connecting portion and a hook plate, and the connecting portion is fixedly connected to the counterweight plate; when two adjacent counterweight plates are snapped together, one counterweight plate and the hook plate connected thereto are respectively attached to the two side surfaces of the other counterweight plate.

[0024] Through the above technical solution, the buckle plate structure is simple and stable, and effectively avoids the phenomenon of axial separation of two adjacent weight plates after being snapped together. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0027] Figure 2 This is a schematic diagram of the dumbbell in Example 1 when in use;

[0028] Figure 3 This is an exploded view of the linear drive module of Example 1;

[0029] Figure 4 It is a schematic diagram of the overall structure of Example 2;

[0030] Figure 5 This is a schematic diagram of the dumbbell in use of Example 2;

[0031] Figure 6 This is an exploded view of the linear drive module of Example 2;

[0032] Figure 7 It is a partial structural schematic diagram of the utility model;

[0033] Figure 8 This is a schematic diagram of the base structure of the utility model;

[0034] Fig. 9 This is a schematic diagram of the handle structure of the utility model;

[0035] The utility model number information is as follows:

[0036] 1. Handle; 2. Weight plate; 3. Slide bar; 4. Track; 5. Slider; 6. Transmission gear; 7. Jumping ball; 8. Mounting slot; 9. Elastic member; 10. Push block; 11. Connecting rod; 12. Clamp plate; 13. Base; 14. Avoidance hole; 15. Fixing slot; 101. Rod; 102. Fixing plate; 201. Snap-on hole; 301. First rod; 302. First tooth-shaped portion; 303. Second rod; 304. Second tooth-shaped portion; 401. Positioning through hole; 402. Numerical mark; 403. Strip through hole; 121. Connecting portion; 122. Hook plate; 131. Accommodating slot;

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] A dumbbell with quick weight adjustment comprises a handle 1 and two sets of weight plates 2. The two weight plates 2 closest to the two ends of the handle 1 are fixedly connected to the handle 1. A snap mechanism is provided between two adjacent weight plates 2. The snap mechanism is used to prevent the two adjacent weight plates 2 from axially disengaging. A linear drive module is provided between the two weight plates 2 closest to the two ends of the handle 1. The linear drive module comprises a slide bar 3. Each weight plate 2 is provided with a snap hole 201. When the drive slide bar 3 extends into the snap hole 201 on one or more weight plates 2, a corresponding number of weight plates 2 are assembled and connected to the handle 1.

[0042] When the utility model is in use, the slide bar 3 is driven to extend into the snap-in holes 201 on one or more weight plates 2, and the snap-in mechanism is cooperated to assemble and connect the corresponding number of weight plates 2 on the handle 1; the user only needs to drive the slide bar 3 to slide to different positions to realize the assembly and connection of the corresponding number of weight plates 2 with the handle 1, and the operation process takes less time and is highly efficient. The linear drive module includes a track 4 and a slider 5, the track 4 is fixedly connected between the two weight plates 2 closest to the two ends of the handle 1, the slider 5 is slidably connected to the track 4, and the slide bar 3 is fixedly connected to the slider 5.

[0043] The track 4 is used for sliding connection with the slider 5. The sliding connection between the track 4 and the slider 5 is stable and accurately positioned. The slide bar 3 can be driven to slide by adjusting the position of the slider 5, which is very convenient to use.

[0044] refer to Figure 1 , 4 8. In actual use, in order to facilitate the placement of two sets of weight plates 2, the dumbbell usually needs to be used in conjunction with the base 13, and the base 13 is provided with two accommodating grooves 131 for accommodating a single set of weight plates 2.

[0045] According to the different specific structures of the linear drive module, the utility model can be divided into the following two embodiments, which are specifically as follows:

[0046] Embodiment 1: In order to use the slide bar 3 to cooperate with two sets of weight plates 2, two sliders 5 are connected to one track 4, and the slide bars 3 connected to the two sliders 5 extend in opposite directions. The two slide bars 3 on the same track 4 are respectively used in cooperation with the clamping holes 201 on the two sets of weight plates 2. Figure 1 , 2 , 3, 7.

[0047] The two sliders 5 are respectively connected to a slide bar 3. The two sliders 5 on the same track 4 are driven to control the two slide bars 3 separately. After the two sliders 5 are driven to the appropriate positions, the two slide bars 3 are extended into the snap-in holes 201 of the corresponding number of weight plates 2 to realize the assembly and connection of the weight plates 2. The operation is very convenient.

[0048] In this embodiment, the two slide bars 3 can slide relative to each other at different distances, and different numbers of weight plates 2 can be matched on the two slide bars 3 .

[0049] Embodiment 2: The slide bar 3 includes a first rod 301 and a second rod 303. The slide block 5 is fixed to the first rod 301. The first rod 301 is provided with a first toothed portion 302 in the length direction. The second rod 303 is provided with a second toothed portion 304 in the length direction. The track 4 is rotatably connected with a transmission gear 6. The transmission gear 6 is meshed with the first toothed portion 302 and the second toothed portion 304 at the same time. The first rod 301 and the second rod 303 are located on both sides of the transmission gear 6. Figure 4 , 5 , 6, 7.

[0050] When the user drives the slider 5 to move the first rod 301 for a certain distance, the first toothed portion 302 drives the transmission gear 6 to rotate, and the transmission gear 6 drives the second rod 303 to move the same distance in the opposite direction through the second toothed portion 304; the user drives the slider 5 to make the first rod 301 and the second rod 303 connected on the same track 4 slide in opposite directions to extend into the engaging holes 201 on the two sets of weight plates 2, which is very convenient and quick to use.

[0051] Preferably, the slider 5 is provided with an avoidance hole 14 for the second rod 303 to pass through, so as to prevent the slider 5 from hindering the movement of the second rod 303, so that the second rod 303 can be designed to be longer and have a longer travel.

[0052] In this embodiment, the first rod 301 and the second rod 303 are driven by the transmission gear 6 to achieve simultaneous movement. The first rod 301 and the second rod 303 slide relative to each other in opposite directions by equal distances, and the number of counterweight plates 2 connected to the first rod 301 and the second rod 303 on the same track 4 is always equal.

[0053] The preferred embodiment of the present invention is Embodiment 1 and the following description is applicable to both Embodiments 1 and 2.

[0054] The utility model also includes a jumping bead 7, a mounting groove 8 is provided on the slider 5, an elastic member 9 is provided between the mounting groove 8 and the jumping bead 7, a positioning through hole 401 is provided on the track 4, and several positioning through holes 401 are evenly arranged along the length direction of the track 4, and the elastic member 9 is used to press the jumping bead 7 to the corresponding positioning through hole 401.

[0055] During the sliding of the slider 5, the jumping beads 7 are successively connected to the positioning holes 401 on the access path, and the user can clearly observe that the number of counterweight plates 2 connected to the slide bar 3 is increasing, which is convenient for the user to quickly assemble and connect the appropriate number of counterweight plates 2 with the slide bar 3.

[0056] Preferably, the elastic member 9 is a spring, and preferably the jumping ball 7 is a steel ball.

[0057] The present invention further includes a numerical mark 402 , and the number of the positioning through holes 401 is an integer multiple of the number of the numerical mark 402 .

[0058] After the user slides the slider 5 to a suitable position, the user can refer to the corresponding numerical mark 402 to understand the total weight of the handle 1 after the corresponding number of weight plates 2 are assembled, so that the user can clearly specify the appropriate dumbbell weight to select the exercise intensity.

[0059] The utility model also includes a push block 10 and a connecting rod 11 connected to each other. The track 4 is hollow, and the slider 5 is located in the track 4. The track 4 is provided with a strip through hole 403. The connecting rod 11 passes through the strip through hole 403 and is fixedly connected to the slider 5.

[0060] The track 4 is hollow inside for the connection of the slider 5, making the sliding connection state of the slider 5 more convenient; the setting of the push block 10 and the connecting rod 11 ensures that the user can easily drive the slider 5 to slide; when the connecting rod 11 abuts against the end of the bar through hole 403, the slider 5 slides to the limit distance, and the bar through hole 403 can limit the movable stroke of the slider 5 to avoid useless work and make the use more efficient.

[0061] refer to Fig. 9 The handle 1 includes a rod 101 and a fixed plate 102 , two fixed plates 102 are connected to the two ends of the rod 101 , the two fixed plates 102 are each fixedly connected to a weight plate 2 , a fixed groove 15 is provided on the fixed plate 102 , and the two ends of the track 4 are fixedly connected to the fixed grooves 15 on the two fixed plates 102 .

[0062] Both ends of the track 4 are installed and connected in the fixing grooves 15, so that the installation of the track 4 is more stable.

[0063] Preferably, two fixing grooves 15 are symmetrically arranged on a single fixing plate 102, and the number of rails 4 is also two; after the rails 4 and the corresponding fixing grooves 15 are installed, the two rails 4 are symmetrically distributed on both sides of the rod 101. Correspondingly, the number of the clamping holes 201 arranged on a single weight plate 2 is also two, so that the weight plate 2 and the slide bar 3 are connected.

[0064] The mounting grooves 8 are symmetrically arranged on two opposite sides of the slider 5 , and two groups of strip-shaped through holes 403 are correspondingly arranged on the track 4 .

[0065] The two mounting grooves 8 on the slider 5 are correspondingly equipped with the elastic member 9 and the jumping bead 7. The slider 5 is subjected to uniform force through the resistance feedback by the jumping bead 7 during the sliding process, so that the slider 5 slides more smoothly and avoids the jumping bead 7 from getting stuck due to uneven force when connected to a positioning through hole 401. Preferably, the number of positioning through holes 401 is twice the number of numerical marks 402.

[0066] The buckle mechanism is a buckle plate 12, which includes a connecting portion 121 and a hook plate 122. The connecting portion 121 is fixedly connected to the counterweight plate 2; when two adjacent counterweight plates 2 are buckled, one counterweight plate 2 and the hook plate 122 connected thereto are respectively attached to the two side surfaces of the other counterweight plate 2.

[0067] The buckle plate 12 has a simple and stable structure, and can effectively prevent two adjacent weight plates 2 from being axially separated after being engaged.

[0068] Preferably, each weight plate 2 is fixedly connected with two buckle plates 12, and the two buckle plates 12 connected to the weight plate 2 are respectively connected to the upper side and the lower side of the weight plate 2, so that the fit of adjacent weight plates 2 is tighter and more stable.

[0069] When the dumbbell of Example 1 is in use, the four push blocks 10 need to be pushed separately so that the sliding bars 3 with the same extension direction are connected to the same number of snap-in holes 201 and the same number of weight plates 2. At the same time, the jumping beads 7 are connected to the corresponding positioning through holes 401. The user can refer to the numerical mark 402 to clearly know the number and weight of the weight plates 2 assembled and connected to the sliding bars 3.

[0070] When the dumbbell of Example 2 is in use, it is necessary to push the two push blocks 10 separately so that the two first rods 301 are connected to the same number of snap-in holes 201 and matched to connect the same number of weight plates 2. When the first rod 301 slides, the second rod 303 slides out the same end distance through the transmission of the transmission gear 6, so that the first rod 301 and the second rod 303 are matched to connect the same number of weight plates 2. At the same time, the jumping beads 7 are connected to the corresponding positioning through holes 401. The user can refer to the numerical mark 402 to clearly know the number and weight of the weight plates 2 assembled and connected to the sliding bar 3.

[0071] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A dumbbell with quick weight adjustment, comprising a handle (1) and two sets of weight plates (2), characterized in that: The two weight plates (2) closest to the two ends of the handle (1) are fixedly connected to the handle (1), and a buckle mechanism is provided between the two adjacent weight plates (2). The buckle mechanism is used to prevent the two adjacent weight plates (2) from being separated in the axial direction. A linear drive module is provided between the two weight plates (2) closest to the two ends of the handle (1), and the linear drive module includes a slide bar (3). Each of the weight plates (2) is provided with a snap-on hole (201); when the drive slide bar (3) extends into the snap-on hole (201) on one or more of the weight plates (2), a corresponding number of weight plates (2) are assembled and connected to the handle (1).

2. A dumbbell with quick weight adjustment according to claim 1, characterized in that: The linear drive module comprises a track (4) and a slider (5); the track (4) is fixedly connected between the two weight plates (2) closest to the two ends of the handle (1); the slider (5) is slidably connected to the track (4); and the slide bar (3) is fixedly connected to the slider (5).

3. A dumbbell with quick weight adjustment according to claim 2, characterized in that: Two sliding blocks (5) are correspondingly connected to one track (4), and the sliding rods (3) connected to the two sliding blocks (5) extend in opposite directions.

4. A dumbbell with quick weight adjustment according to claim 2, characterized in that: The sliding rod (3) comprises a first rod (301) and a second rod (303); the sliding block (5) is fixedly connected to the first rod (301); a first toothed portion (302) is provided in the length direction of the first rod (301); a second toothed portion (304) is provided in the length direction of the second rod (303); a transmission gear (6) is rotatably connected to the track (4); the transmission gear (6) is meshed with the first toothed portion (302) and the second toothed portion (304) at the same time; the first rod (301) and the second rod (303) are located on both sides of the transmission gear (6).

5. A dumbbell with quick weight adjustment according to claim 2, 3 or 4, characterized in that: The invention also comprises a jumping bead (7), a mounting groove (8) is provided on the slider (5), an elastic member (9) is provided between the mounting groove (8) and the jumping bead (7) so as to abut against each other, a positioning through hole (401) is provided on the track (4), a plurality of the positioning through holes (401) are evenly arranged along the length direction of the track (4), and the elastic member (9) is used to press the jumping bead (7) toward the corresponding positioning through hole (401).

6. A dumbbell with quick weight adjustment according to claim 5, characterized in that: It also includes a numerical mark (402), and the number of the positioning through holes (401) is an integer multiple of the number of the numerical mark (402).

7. A dumbbell with quick weight adjustment according to claim 2, 3, 4 or 6, characterized in that: It also comprises a push block (10) and a connecting rod (11) connected to each other, the track (4) is hollow, the slider (5) is located in the track (4), a strip-shaped through hole (403) is provided on the track (4), and the connecting rod (11) passes through the strip-shaped through hole (403) and is fixedly connected to the slider (5).

8. A dumbbell with quick weight adjustment according to claim 7, characterized in that: The handle (1) comprises a rod (101) and a fixed plate (102), wherein two fixed plates (102) are connected to two ends of the rod (101), and each of the two fixed plates (102) is fixedly connected to a weight plate (2), and a fixed groove (15) is provided on the fixed plate (102), and two ends of the track (4) are fixedly connected to the fixed grooves (15) on the two fixed plates (102).

9. A dumbbell with quick weight adjustment according to claim 5, characterized in that: The mounting grooves (8) are symmetrically arranged on two opposite sides of the slider (5), and two groups of strip-shaped through holes (403) are correspondingly arranged on the track (4).

10. A dumbbell with quick weight adjustment according to claim 1 or 2 or 3 or 4 or 6 or 8 or 9, characterized in that: The buckle mechanism is a buckle plate (12), and the buckle plate (12) comprises a connecting portion (121) and a hook plate (122), and the connecting portion (121) is fixedly connected to the counterweight plate (2); when two adjacent counterweight plates (2) are buckled, one counterweight plate (2) and the hook plate (122) connected thereto are respectively attached to the two side surfaces of the other counterweight plate (2).

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