A dumbbell

Abstract

The utility model provides a dumbbell, which belongs to the technical field of fitness equipment. The dumbbell includes a handle and a plurality of weight plates, the two ends of the handle are respectively provided with a fastening assembly, the bottom end of the fastening assembly is provided with a placement plate, the top end of the placement plate is provided with a plurality of weight plates, and the plurality of weight plates are respectively connected with the two ends of the handle in a sleeve-type manner, the placement plate includes a plate and a hollow groove, one side of the plate is provided with a hollow groove, the fastening assembly includes a baffle, a knob, a threaded rod, a pressure plate, a perforation and a limit hole, one side of the baffle is rotatably connected to the knob, one side of the knob is connected to the threaded rod, one end of the threaded rod passes through the plurality of weight plates and is threadedly connected to one side of the pressure plate, the bottom end of the pressure plate is slidably connected to the inside of the hollow groove, the handle includes a main shaft, a grip sleeve, a jack and a clamping strip, and the outer wall of the main shaft is sleeved with a grip sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a dumbbell. Background Art

[0002] Dumbbells are an auxiliary equipment for weightlifting and fitness exercises. They are smaller than barbells and have a variety of weights to suit different groups of people and exercise needs, so they are favored by fitness enthusiasts. Common dumbbells on the market generally include a handle in the middle and fixed or detachable weight plates on both sides of the handle, which are generally made of cast iron wrapped with rubber and other materials. After searching, a Chinese patent with announcement number CN206342849U discloses a dumbbell, including a handle and multiple groups of symmetrically arranged weight plates that can be detachably matched with both ends of the handle, and also includes a plate selection base for placing the weight plates at a fixed angle and position. The connecting sections at both ends of the handle for connecting the weight blocks are both provided with a rotating plate selection mechanism, and the inner side surface where the weight plates are connected to the handle is provided with a matching structure for connecting and matching with the rotating plate selection mechanism; by rotating the handle, the rotating plate selection structure can be connected to or disconnected from the weight plates to increase or decrease the weight of the dumbbell. A new type of connection structure is set between the handle and the weight plate. By turning the handle, the rotating plate selection mechanism is connected to the weight plate or detached from the weight plate. Since each end of the handle can be connected to multiple weight plates, each weight plate can be connected to the handle through the rotating plate selection mechanism. Therefore, the number of weight plates connected to the handle can be changed by turning the handle to increase or decrease the weight, thereby simplifying the operation process of changing the dumbbell weight.

[0003] However, in actual use, since the outer side of the weight plate is arc-shaped, after the number of weight plates is increased or decreased, they need to be placed on top of the plate selection base to remain stable. If the plate selection base is missing, the dumbbells placed on the ground are prone to rolling when touched, which is not conducive to the safety of the fitness venue.

[0004] Therefore, we made improvements on this and proposed a dumbbell. Utility Model Content

[0005] In order to solve the problem that the existing dumbbells need to be placed in a designated position to prevent accidental rolling, the utility model provides a dumbbell.

[0006] The utility model is achieved in this way:

[0007] A dumbbell comprises a handle and a plurality of weight plates, wherein both ends of the handle are respectively provided with a fastening assembly, and the bottom end of the fastening assembly is provided with a placement plate, and a plurality of weight plates are placed on the top of the placement plate, and the plurality of weight plates are respectively connected with the two ends of the handle in a sleeve manner, and the placement plate comprises a plate member and a hollow groove, and a hollow groove is provided on one side of the plate member, and the fastening assembly comprises a baffle, a knob, a threaded rod, a pressure plate, a perforation and a limit hole, one side of the baffle plate is rotatably connected to the knob, and one side of the knob is connected to the threaded rod, one end of the threaded rod passes through the plurality of weight plates and is threadedly connected to one side of the pressure plate, and the bottom end of the pressure plate is slidably connected to the inside of the hollow groove.

[0008] Furthermore, the handle includes a main shaft, a grip sleeve, a socket and a clamping strip, the grip sleeve is mounted on the outer wall of the main shaft, the main shaft is provided with sockets on both sides close to the grip sleeve, and the clamping strips are provided on both sides of the outer wall of the main shaft.

[0009] The beneficial effect of adopting the above further scheme is that the use of the grip sleeve makes the holding of the main shaft more comfortable, and the setting of the socket provides a position space for the insertion of the pin shaft, and the setting of the clamping strip makes it easy to engage with the counterweight plate.

[0010] Furthermore, a through hole is provided on one side of the baffle, and the interior of the through hole is sleeve-connected with the outer wall of the main shaft.

[0011] The beneficial effect of adopting the above further solution is that, through the setting of the perforations, a docking position is provided for the main shaft to be inserted into the counterweight plate.

[0012] Furthermore, limiting holes are respectively arranged on both sides of the inner wall of the through hole, wherein the top of one of the limiting holes extends to the top of the baffle, and pin shafts are inserted and connected inside the two limiting holes, and one end of the pin shaft passes through the insertion hole.

[0013] The beneficial effect of adopting the above further solution is that, by inserting the pin shaft into the inside of the limiting hole and the plug hole, the two fastening components can be respectively restricted to the specified positions outside the handle.

[0014] Furthermore, the weight plate includes a plate body, a clamping hole, a docking hole and a ring sleeve, and a clamping hole that is engaged with the clamping strip is arranged at the center of one side of the plate body.

[0015] The beneficial effect of adopting the above further solution is that the locking strip and the locking hole are engaged with each other, thereby preventing the weight plate from rotating around the main axis.

[0016] Furthermore, a docking hole is provided on the outer wall of the sheet body, and the interior of the docking hole is interlaced and connected with one end of the threaded rod.

[0017] The beneficial effect of adopting the above further solution is that, through the setting of the docking hole, the threaded rod can pass through multiple sheets, thereby being threadedly connected with the pressure plate.

[0018] Furthermore, outer walls of the plurality of sheets are respectively covered with ring sleeves, the plurality of ring sleeves are fitted to each other, and gaps are provided between the plurality of sheets.

[0019] The beneficial effect of adopting the above further scheme is that, through the use of the ring sleeve, the outer wall of each sheet body has a protective effect, and it is also convenient to form an elastic support between each sheet body, which is beneficial to improve the tightness of the sheet body extrusion between the pressure plate and the baffle. Secondly, by setting the gap, it provides space for the compression deformation of the ring sleeve.

[0020] Furthermore, a rubber gasket is bonded to the bottom end of the placement plate.

[0021] The beneficial effect of adopting the above further solution is that, through the bonding use of the rubber gasket, the anti-slip effect of the dumbbell when placed is improved.

[0022] Furthermore, a groove is formed at the bottom end of the pressure plate, a pulley is rotatably connected inside the groove, and the bottom end of the pulley is flush with the bottom end of the rubber gasket.

[0023] The beneficial effect of adopting the above further solution is that the reciprocating movement of the pressure plate is smoother through the connection and use of the pulley.

[0024] The beneficial effect of the utility model is that through the coordinated use of the fastening assembly and the placement plate, the dumbbell can be placed in any position while having the function of increasing, decreasing and replacing the weight plates, and still remain stable, reducing the condition of force rolling, which is beneficial to improving the safety of the fitness venue, wherein, by turning the knob, the knob drives the threaded rod to rotate, and prompts the pressure plate to slide along the hollow groove until it contacts one side of the weight plate, so that multiple weight plates are pressurized and fixed between the baffle plate and the pressure plate, and then through the setting of the perforation and the limit hole, the pin shaft can be inserted into the interior of the baffle plate, thereby prompting the two fastening assemblies to be respectively restricted to the specified positions on both sides of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1A three-dimensional diagram of a dumbbell provided by the utility model;

[0027] Figure 2 A schematic diagram of a handle structure of a dumbbell provided by the utility model;

[0028] Figure 3 A schematic diagram of a fastening assembly of a dumbbell provided by the utility model;

[0029] Figure 4 A schematic diagram of a weight plate for a dumbbell provided by the utility model;

[0030] Figure 5 The utility model is a bottom view of a dumbbell placement plate.

[0031] In the figure: 100, handle; 1001, main shaft; 1002, grip sleeve; 1003, socket; 1004, clamping strip; 200, weight plate; 2001, plate body; 2002, clamping hole; 2003, docking hole; 2004, ring sleeve; 300, fastening assembly; 3001, baffle; 3002, knob; 3003, threaded rod; 3004, pressure plate; 3005, through hole; 3006, limit hole; 400, placement plate; 4001, plate; 4002, hollow groove; 500, pin; 600, rubber gasket; 700, pulley. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] See also Figure 1-Figure 5The utility model provides a technical solution: a dumbbell, including a handle 100 and a plurality of weight plates 200, a fastening assembly 300 is respectively provided at both ends of the handle 100, a placing plate 400 is provided at the bottom end of the fastening assembly 300, a plurality of weight plates 200 are placed on the top of the placing plate 400, and the plurality of weight plates 200 are respectively connected with the two ends of the handle 100, the placing plate 400 includes a plate 4001 and a hollow groove 4002, a hollow groove 4002 is provided on one side of the plate 4001, the fastening assembly 300 includes a baffle 3001, a knob 3002, a threaded rod 3003, a pressing plate 3004, a perforation 3005 and a limiting hole 3006, one side of the baffle 3001 is rotatably connected to the knob 3002, and one side of the knob 3002 is connected to the threaded Rod 3003, one end of the threaded rod 3003 passes through a plurality of weight plates 200 and is threadedly connected to one side of the pressure plate 3004, and the bottom end of the pressure plate 3004 is slidably connected to the inside of the hollow groove 4002. By turning the knob 3002, the knob 3002 drives the threaded rod 3003 to rotate, and causes the pressure plate 3004 to slide along the hollow groove 4002 until it contacts one side of the weight plate 200, thereby pressurizing and fixing a plurality of weight plates 200 between the baffle 3001 and the pressure plate 3004, and then through the setting of the through hole 3005 and the limiting hole 3006, the pin shaft 500 can be inserted into the inside of the baffle 3001, thereby causing the two fastening components 300 to be respectively restricted to the specified positions on both sides of the handle 100.

[0036] Embodiment 2

[0037] See also Figure 1-Figure 5As an embodiment of the present invention, further, the grip 100 includes a main shaft 1001, a grip sleeve 1002, a socket 1003 and a clamping strip 1004. The outer wall of the main shaft 1001 is fitted with the grip sleeve 1002. The main shaft 1001 is provided with sockets 1003 on both sides close to the grip sleeve 1002. The clamping strips 1004 are provided on both sides of the outer wall of the main shaft 1001. The use of the grip sleeve 1002 makes the grip of the main shaft 1001 more comfortable. The setting of the socket 1003 provides a position space for the insertion of the pin 500. The setting of the clamping strip 1004 facilitates the engagement with the weight plate 200. A through hole 3005 is provided on one side of the baffle 3001. The inside of the through hole 3005 is fitted and connected with the outer wall of the main shaft 1001. The setting of the through hole 3005 makes it the main shaft 100 1 is inserted into the weight plate 200 to provide a docking position, and limiting holes 3006 are respectively arranged on both sides of the inner wall of the through hole 3005, wherein the top of one limiting hole 3006 extends to the top of the baffle 3001, and the insides of the two limiting holes 3006 are inserted and connected with a pin shaft 500, and one end of the pin shaft 500 passes through the insertion hole 1003, and the pin shaft 500 is inserted into the inside of the limiting hole 3006 and the insertion hole 1003, so that the two fastening components 300 can be respectively limited to the specified positions outside the grip 100, and the weight plate 200 includes a sheet body 2001, a clamping hole 2002, a docking hole 2003 and a ring sleeve 2004, and a clamping hole 2002 that is mutually engaged with the clamping strip 1004 is arranged at the center of one side of the sheet body 2001, and the clamping strip 1004 is mutually engaged with the clamping hole 2002 to prevent the weight plate 200 from rotating around the main axis 1001.

[0038] Embodiment 3

[0039] See also Figure 1-Figure 5As an embodiment of the present invention, further, a docking hole 2003 is provided on the outer wall of the sheet 2001, and the interior of the docking hole 2003 is connected with one end of the threaded rod 3003 through the arrangement of the docking hole 2003, so that the threaded rod 3003 can pass through multiple sheets 2001, thereby being threadedly connected with the pressing plate 3004, and the outer walls of several sheets 2001 are respectively covered with ring sleeves 2004, and several ring sleeves 2004 are fitted with each other, and gaps are provided between several sheets 2001. By using the set of the ring sleeves 2004, the outer wall of each sheet 2001 has a protective effect, and it is also convenient to 01 forms an elastic support, which is beneficial to improve the tightness of the compression of the sheet body 2001 between the pressure plate 3004 and the baffle 3001. Secondly, by setting the gap, it provides space for the compression deformation of the ring sleeve 2004. The bottom end of the placement plate 400 is bonded with a rubber gasket 600. The bonding and use of the rubber gasket 600 is beneficial to improve the anti-slip effect of the dumbbell when it is placed. A groove is opened at the bottom end of the pressure plate 3004, and a pulley 700 is rotatably connected inside the groove. The bottom end of the pulley 700 is flush with the bottom end of the rubber gasket 600. The connection and use of the pulley 700 make the reciprocating movement of the pressure plate 3004 smoother.

[0040] Specifically, the working principle of the dumbbell is as follows: when using, first check whether the structure of the dumbbell is intact. After ensuring that the structure is intact, connect the appropriate weight plates 200 to the two ends of the handle 100, wherein the knobs 3002 are pinched and twisted respectively, so that the knobs 3002 drive the threaded rod 3003 to rotate, and the pressure plate 3004 is prompted to slide along the hollow groove 4002 until it contacts one side of the weight plate 200, so that the baffle plate 3001 and the pressure plate 3004 are pressurized and fixed to multiple weight plates 200, and the reciprocating movement of the pressure plate 3004 is smoother through the connection of the pulley 700, and then the pin 500 can be inserted into the baffle plate 300 by setting the through hole 3005 and the limit hole 3006. 1, so that the two fastening components 300 are respectively restricted to the specified positions on both sides of the grip 100, and then the grip sleeve 1002 is used in combination to make the holding of the main shaft 1001 more comfortable, and the setting of the jack 1003 provides a position space for the insertion of the pin 500, and then the setting of the clamping strip 1004 facilitates the engagement and docking with the weight plate 200. Secondly, through the use of the ring sleeve 2004 in combination, the outer wall of each sheet body 2001 has a protective effect, and it is also convenient to form an elastic support between each sheet body 2001, which is beneficial to improve the tightness of the pressing plate 3004 and the baffle 3001 for squeezing the sheet body 2001. Secondly, through the setting of the gap, it provides space for the compression deformation of the ring sleeve 2004.

[0041] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dumbbell, comprising a handle (100) and a plurality of weight plates (200), characterized in that: The two ends of the handle (100) are respectively provided with fastening components (300), the bottom end of the fastening component (300) is provided with a placement plate (400), a plurality of weight plates (200) are placed on the top of the placement plate (400), and the plurality of weight plates (200) are respectively connected to the two ends of the handle (100) in a sleeve-type manner, the placement plate (400) comprises a plate (4001) and a hollow groove (4002), one side of the plate (4001) is provided with a hollow groove (4002), and the fastening component (300) comprises a baffle (3 001), a knob (3002), a threaded rod (3003), a pressure plate (3004), a through hole (3005) and a limiting hole (3006), one side of the baffle plate (3001) is rotatably connected to the knob (3002), one side of the knob (3002) is connected to the threaded rod (3003), one end of the threaded rod (3003) passes through a plurality of the weight plates (200) and is threadedly connected to one side of the pressure plate (3004), and the bottom end of the pressure plate (3004) is slidably connected to the inside of the hollow groove (4002).

2. The dumbbell according to claim 1, characterized in that: The handle (100) comprises a main shaft (1001), a grip sleeve (1002), a socket (1003) and a clamping strip (1004); the grip sleeve (1002) is sleeved on the outer wall of the main shaft (1001); the main shaft (1001) is provided with sockets (1003) on both sides close to the grip sleeve (1002); and the clamping strips (1004) are provided on both sides of the outer wall of the main shaft (1001).

3. The dumbbell according to claim 2, characterized in that: A through hole (3005) is provided on one side of the baffle (3001), and the interior of the through hole (3005) is sleeve-connected with the outer wall of the main shaft (1001).

4. The dumbbell according to claim 3, characterized in that: Limiting holes (3006) are respectively arranged on both sides of the inner wall of the through hole (3005), wherein the top end of one of the limiting holes (3006) extends to the top end of the baffle (3001), and a pin shaft (500) is inserted and connected inside the two limiting holes (3006), and one end of the pin shaft (500) passes through the insertion hole (1003).

5. The dumbbell according to claim 2, characterized in that: The weight plate (200) comprises a plate body (2001), a clamping hole (2002), a docking hole (2003) and a ring sleeve (2004); the clamping hole (2002) which is engaged with the clamping strip (1004) is arranged at the center of one side of the plate body (2001).

6. The dumbbell according to claim 5, characterized in that: The outer wall of the sheet body (2001) is provided with a docking hole (2003), and the interior of the docking hole (2003) is interlaced and connected with one end of the threaded rod (3003).

7. The dumbbell according to claim 6, characterized in that: The outer walls of the plurality of sheets (2001) are respectively covered with ring sleeves (2004), the plurality of ring sleeves (2004) are fitted to each other, and gaps are provided between the plurality of sheets (2001).

8. The dumbbell according to claim 1, characterized in that: A rubber gasket (600) is bonded to the bottom end of the placement plate (400).

9. The dumbbell according to claim 8, characterized in that: A groove is formed at the bottom end of the pressure plate (3004), and a pulley (700) is rotatably connected inside the groove. The bottom end of the pulley (700) is flush with the bottom end of the rubber gasket (600).

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