Dumbbell with dumbbell pieces convenient to increase and decrease

Abstract

The utility model discloses a dumbbell with dumbbell pieces convenient to increase and decrease, relates to the technical field of fitness equipment, and solves the problems that the dumbbell pieces in the patent and the traditional dumbbell need to be installed and fixed in a screw-thread fit mode, a certain time needs to be consumed in the operation process, and the limitation is large. The utility model discloses a dumbbell with dumbbell pieces convenient to increase and decrease. The grip is of a cylindrical structure, and an anti-skid groove structure is formed in the outer side of the grip. The left end and the right end of the grip are each fixedly connected with a set of connecting cylinders. The connecting cylinder is of a cylindrical structure, and penetrating type circular through groove structures are formed in the top of the connecting cylinder at equal intervals. Dumbbell pieces sleeve the outer sides of the connecting cylinders in a sliding manner; pin rods of cylindrical structures are slidably arranged in a circular through groove in the top of the connecting cylinder at equal intervals. And the steps of increasing or decreasing the dumbbell pieces can be effectively reduced, so that the replacement speed and efficiency are improved, and the dumbbell is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and more specifically, particularly relates to a dumbbell which is convenient for adding and removing dumbbell plates. Background Art

[0002] Dumbbell is an auxiliary equipment for weightlifting and fitness exercises. It has a simple structure and is easy to use. It can be used to enhance muscle strength training. The existing dumbbell has a structure in which multiple dumbbell plates are arranged at both ends of the dumbbell rod and fixed by bolts and nuts. Users can disassemble the dumbbell plates as needed to meet the needs of different training.

[0003] After searching, for example, the patent with announcement number CN203264156U discloses a dumbbell that is convenient for adding and removing dumbbell plates, which includes a handle and two groups of dumbbell plates of equal weight at both ends of the handle, each group of dumbbell plates includes a first dumbbell plate, a second dumbbell plate..., an Nth dumbbell plate, an N+1th dumbbell plate..., the first dumbbell plate is fixed on the handle, except that the first dumbbell plate has only an external thread, the remaining dumbbell plates have internal threads and external threads, and the external thread of the Nth dumbbell plate is consistent with the internal thread of the N+1th dumbbell plate. The utility model has the following beneficial effects: the utility model is a dumbbell that is convenient for adding and removing dumbbell plates, and the larger dumbbell plate can be directly screwed on the adjacent smaller dumbbell plate through a thread, and the pitch is only the thickness of the dumbbell plate, which is much less than the traditional dumbbell. The number of turns is much less, so it saves time and effort and is very convenient.

[0004] The dumbbells in the above patents currently have the following shortcomings:

[0005] When adjusting the number of dumbbell plates in the above patent, each set of dumbbell plates still needs to be rotated and removed, which greatly increases the steps and time for adjusting the dumbbell plates, and cannot effectively facilitate the adjustment of the number of dumbbell plates. It is no different from the traditional method of fixing with bolts. The above patent and traditional dumbbells need to install and fix the dumbbell plates by threaded matching. The operation process takes a certain amount of time and has great limitations. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a dumbbell that is convenient for adding and reducing dumbbell plates, so as to solve the problem proposed in the above background technology that when adjusting the number of dumbbell plates, each group of dumbbell plates still needs to be rotated and removed, which greatly increases the steps and time for adjusting the dumbbell plates, and cannot effectively facilitate the adjustment of the number of dumbbell plates. It is no different from the traditional method of fixing with bolts. The above patent and the traditional dumbbells need to install and fix the dumbbell plates by threaded matching. The operation process takes a certain amount of time and has great limitations.

[0007] The purpose and effect of the utility model of a dumbbell that is convenient for adding and removing dumbbell plates are achieved by the following specific technical means:

[0008] A dumbbell for conveniently adding and removing dumbbell plates comprises: a handle; the handle is of cylindrical structure, and an anti-slip groove structure is provided on the outer side of the handle; a group of connecting tubes are fixedly connected to both left and right ends of the handle; the connecting tube is of cylindrical structure, and a through circular through groove structure is provided on the top of the connecting tube in an equidistant manner; dumbbell plates are slidably sleeved on the outer side of the connecting tube, and a through circular through groove structure is provided in the middle of the dumbbell plates, and a circular pin hole structure is provided on the inner side of the circular through groove of the dumbbell plates; cylindrical pin rods are slidably arranged in an equidistant manner in the circular through groove on the top of the connecting tube, and a spring is sleeved on the outer side of the pin rod.

[0009] Furthermore, a group of connecting belts are fixedly connected to the bottom of both ends of the handle; and a restraining belt with a circular ring structure is fixedly connected in the middle of the bottom of the two groups of connecting belts.

[0010] Furthermore, a fixing plate of a rectangular plate structure is fixedly provided on the inner side of the outer end of the connecting tube, and a through circular through groove structure is provided in the middle of the fixing plate; a limiting block of a rectangular block structure is fixedly provided on the inner top of the connecting tube, and a through cross-shaped through groove structure is provided on one side of the limiting block; a sliding rod of a cylindrical structure is slidably provided in the circular through groove of the fixing plate, and a spring is provided on the outer side of the sliding rod; a clamping block of a cross-shaped block structure is fixedly provided at one end of the sliding rod, and the size of the clamping block matches the size of the cross-shaped through groove on the front side of the limiting block.

[0011] Furthermore, the outer end of the sliding rod is fixedly connected to a top block of a U-shaped block structure; two groups of connecting rods of a cylindrical structure are fixedly set on the inner side of the connecting tube, and springs are sleeved on the outer sides of the connecting rods; sliding plates of a rectangular plate structure are slidably set on the outer sides of the two groups of connecting rods, and the top surface of the sliding plate is in contact with the bottom end of each group of pin rods.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the present application, the position of the sliding plate is controlled by rotating the top block, and the telescopic position of each group of pin rods is further adjusted, so as to achieve the purpose of controlling the connection state of the pin rods and the dumbbell plates. When it is necessary to increase or decrease the dumbbell plates, it is only necessary to rotate the top block to remove or install all the dumbbell plates. The whole operation process is simple and fast, and there is no need for tedious thread removal. It can effectively reduce the steps in the process of increasing or decreasing the dumbbell plates, thereby improving the replacement speed and efficiency, and is more convenient to use.

[0014] During exercise, the handle is further fixed to the user's hand through the cooperation of the restraint belt and the connecting belt, so as to avoid the dumbbells falling and hitting people and belongings due to loosening during operation, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall axial structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall front structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the overall front structure of the connecting tube and dumbbell plates of the utility model in a sectional state.

[0018] Figure 4 It is a schematic cross-sectional structural diagram of the utility model in a disassembled state of a connecting tube and a dumbbell plate.

[0019] Figure 5 It is a schematic diagram of the internal structure of the connecting tube of the utility model in a cutaway state.

[0020] Figure 6 It is a partial enlarged structural schematic diagram of A of the present utility model.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. Handle; 101. Connecting belt; 102. Restraint belt; 2. Connecting tube; 201. Dumbbell plate; 202. Pin rod; 203. Fixing plate; 204. Limiting block; 205. Sliding rod; 206. Block; 207. Top block; 208. Connecting rod; 209. Sliding plate. DETAILED DESCRIPTION

[0023] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0024] Embodiment 1:

[0025] As attached Figure 1 To Attachment Figure 6 As shown:

[0026] The utility model provides a dumbbell for conveniently adding and removing dumbbell plates, comprising: a handle 1; the handle 1 adopts a cylindrical structure, and an anti-slip groove structure is provided on the outer side of the handle 1; a group of connecting tubes 2 are fixedly connected and arranged at both left and right ends of the handle 1; the connecting tube 2 adopts a cylindrical structure, and a through circular through groove structure is arranged equidistantly on the top of the connecting tube 2; a dumbbell plate 201 is slidably sleeved on the outer side of the connecting tube 2, and a through circular through groove structure is arranged in the middle of the dumbbell plate 201, and a circular pin hole structure is provided on the inner side of the circular through groove of the dumbbell plate 201; pin rods 202 of a cylindrical structure are slidably arranged in an equidistant manner in the circular through groove on the top of the connecting tube 2, and a spring is sleeved on the outer side of the pin rod 202.

[0027] Among them, a fixing plate 203 of a rectangular plate structure is fixedly arranged on the inner side of the outer end of the connecting tube 2, and a penetrating circular through groove structure is opened in the middle of the fixing plate 203; a limiting block 204 of a rectangular block structure is fixedly arranged on the inner top of the connecting tube 2, and a penetrating cross-shaped through groove structure is opened on one side of the limiting block 204; a sliding rod 205 of a cylindrical structure is slidably arranged in the circular through groove of the fixing plate 203, and a spring is sleeved on the outer side of the sliding rod 205; a clamping block 206 of a cross-shaped block structure is fixedly arranged at one end of the sliding rod 205, and the size of the clamping block 206 matches the size of the cross-shaped through groove on the front side of the limiting block 204.

[0028] Among them, the outer end of the sliding rod 205 is fixedly connected with a top block 207 of a U-shaped block structure; two groups of connecting rods 208 of a cylindrical structure are fixedly set on the inner side of the connecting tube 2, and the outer side of the connecting rod 208 is sleeved with a spring; the outer sides of the two groups of connecting rods 208 are slidably provided with sliding plates 209 of a rectangular plate structure, and the top surface of the sliding plate 209 is in contact with the bottom end of each group of pin rods 202.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When the number of dumbbell plates 201 needs to be adjusted during use, first manually pull a group of top blocks 207 on the corresponding side outward, synchronously driving the slide bar 205 and the clamping block 206 to slide outward along the fixed plate 203, and making the clamping block 206 slide out of the cross-shaped through groove on the front side of the limit block 204, so that the limit block 204 loses its limiting effect on the slide bar 205 and the top block 207. At this time, the top block 207 can be rotated 90 degrees, so that the top block 207 is in a horizontal position. The top block 207 is in the state of being in the horizontal position, and then the top block 207 is released. Under the action of the spring on the outside of the slide bar 205, the card block 206 is re-engaged in the cross-shaped through groove on the front side of the limit block 204. When the top block 207 is in the horizontal position, the top limit function for the sliding plate 209 is lost. Under the action of the spring on the outside of the two sets of connecting rods 208, the sliding plate 209 slides downward along the two sets of connecting rods 208 to the position in contact with the top block 207. At this time, the sliding plate 209 is also When the locking nut 202 is unlocked, the locking nut 202 is unlocked, and the locking nut 202 is unlocked. When the locking nut 202 is unlocked, the locking nut 202 is unlocked, and the locking nut 202 is unlocked. The dumbbell pieces 201 can be removed or installed by moving the dumbbell pieces 201. After the process of adjusting the number of dumbbell pieces 201 is completed, the top block 207 and the slide bar 205 are pulled outward again, and the top block 207 is rotated 90° here, so that the top block 207 is in a vertical position, and the state of the top block 207 is limited again by the cooperation of the clamping block 206 and the limit block 204. At this time, the slide plate 209 can be pushed up by the top block 207 to slide up along the two groups of connecting rods 208 again. Thereby, each group of pin rods 202 are pushed up again to slide out of the outer side of the circular through groove at the top of the connecting tube 2, and are reinserted into the inner side of the dumbbell piece 201, and the dumbbell piece 201 is limited, and the whole adjustment process is completed. Compared with the traditional bolt fixing method, when using the device, there is no need to rotate the bolt, and the angle of the top block 207 can be directly rotated to complete the process of limiting and releasing the limit of the dumbbell piece 201. The operation is faster and simpler, which greatly facilitates the process of increasing and decreasing the dumbbell piece 201.

[0031] Embodiment 2:

[0032] Based on Example 1, as shown in the attached Figure 1 To Attachment Figure 6 As shown:

[0033] A set of connecting belts 101 are fixedly connected to the bottom of both ends of the handle 1; and a restraining belt 102 with a circular ring structure is fixedly connected in the middle of the bottom of the two sets of connecting belts 101.

[0034] The specific usage and function of this embodiment are as follows:

[0035] In the utility model, when exercising, the user holds the handle 1 and then wraps the restraint belt 102 around the user's wrist. The restraint belt 102 and the connecting belt 101 cooperate to further fix the handle 1 to the user's hand, thereby avoiding the phenomenon of the dumbbell falling and hitting people and belongings due to looseness during operation, thereby reducing safety hazards.

Claims

1. A dumbbell that is convenient for adding and removing dumbbell plates, characterized in that: include: A handle (1); the handle (1) is of cylindrical structure, and an anti-slip groove structure is provided on the outer side of the handle (1); a group of connecting tubes (2) are fixedly connected to both left and right ends of the handle (1); the connecting tube (2) is of cylindrical structure, and a through-type circular through-groove structure is provided at an equidistant arrangement on the top of the connecting tube (2); a dumbbell piece (201) is provided on the outer side of the connecting tube (2), and a through-type circular through-groove structure is provided in the middle of the dumbbell piece (201), and a circular pin hole structure is provided on the inner side of the circular through-groove of the dumbbell piece (201); a cylindrical pin rod (202) is provided in an equidistant arrangement and sliding manner in the circular through-groove at the top of the connecting tube (2), and a spring is provided on the outer side of the pin rod (202).

2. A dumbbell for conveniently adding or removing dumbbell plates as claimed in claim 1, characterized in that: A set of connecting belts (101) are fixedly connected to the bottom of both ends of the handle (1); and a binding belt (102) with a circular ring structure is fixedly connected to the middle of the bottom of the two sets of connecting belts (101).

3. A dumbbell for conveniently adding or removing dumbbell plates as claimed in claim 1, characterized in that: A fixing plate (203) with a rectangular plate structure is fixedly arranged on the inner side of the outer end of the connecting cylinder (2), and a penetrating circular through groove structure is provided in the middle of the fixing plate (203).

4. A dumbbell for conveniently adding or removing dumbbell plates as claimed in claim 1, characterized in that: A limiting block (204) with a rectangular block structure is fixedly arranged on the top of the inner side of the connecting cylinder (2), and a through-type cross-shaped through groove structure is opened on one side of the limiting block (204).

5. A dumbbell that is convenient for adding and removing dumbbell plates as claimed in claim 3, characterized in that: A cylindrical sliding rod (205) is slidably disposed in the circular through groove of the fixed plate (203), and a spring is sleeved on the outer side of the sliding rod (205); a clamping block (206) with a cross-shaped block structure is fixedly disposed at one end of the sliding rod (205), and the size of the clamping block (206) matches the size of the cross-shaped through groove on the front side of the limiting block (204).

6. A dumbbell for conveniently adding or removing dumbbell plates as claimed in claim 5, characterized in that: The outer end of the sliding rod (205) is fixedly connected to a top block (207) having a U-shaped block structure.

7. A dumbbell for conveniently adding or removing dumbbell plates as claimed in claim 1, characterized in that: Two groups of cylindrical connecting rods (208) are fixedly arranged on the inner side of the connecting cylinder (2), and springs are sleeved on the outer sides of the connecting rods (208); sliding plates (209) of rectangular plate structures are slidably arranged on the outer sides of the two groups of connecting rods (208), and the top end surfaces of the sliding plates (209) are in contact with the bottom ends of the pin rods (202) of each group.

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