CN2920314Y

CN2920314Y - A fixing type dumbbell with anti-loosing device

Info

Publication number: CN2920314Y
Application number: CN 200620103401
Authority: CN
Inventors: 曹国方
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-10
Filing date: 2006-05-10
Publication date: 2007-07-11
Anticipated expiration: 2016-05-10

Abstract

The utility model relates to a body building apparatus, in particular to a fixing type dumbbell with anti-loosing device which comprises a grip of a dumbbell, a head of the dumbbell and an end cap; wherein a dumbbell head is provided at both ends of the grip of the dumbbell and an end cap is provided on the dumbbell head, and is characterized in that the utility model has a fastening connector and an axial positioning member, a radial positioning member, the fastening connector makes the dumbbell head in a permanent connection with the grip of the dumbbell, the axial positioning member stays in one end of the dumbbell head and stretches at a radial direction to prevent relative rotation between the dumbbell head and the grip of the dumbbell, and the radial positioning member stays in the grip of the dumbbell and stretches into the end of the dumbbell head to prevent axial relative movement between the dumbbell head and the grip of the dumbbell. The utility model has the advantages of that the dumbbell head and the grip of the dumbbell are not separated in the utilization, the utilization safety of the dumbbell is improved, and the structure is not complex.

Description

A kind of fixed dumbbell that anti-loosing device is arranged

Technical field

The utility model relates to body-building equipment, specifically is a kind of fixed dumbbell that anti-loosing device is arranged.

Background technology

The dumbbell that uses in gymnasium or health club is the fixing dumbbell of weight, is called fixed dumbbell.Existing structure is: one, dumbbell head is welded on the dumbbell handle; Two, dumbbell head is fixed on the dumbbell handle with connectors such as bolt or nuts.In the dumbbell use, dumbbell head can constantly be clashed into, and causes welding position fracture or bolt, nut connection to get loose, thereby causes the injury to user or other people.

The utility model content

The utility model purpose is to be welded to connect in order to overcome the employing of dumbbell head and dumbbell handle, and the welding position fracture can take place in use; Dumbbell head is connected the defective that easily gets loose with bolt, nut merely with the dumbbell handle, and a kind of fixed dumbbell that anti-loosing device is arranged now is provided.

The utility model purpose is such realization: it is made up of dumbbell handle, dumbbell head, end cap, two ends at the dumbbell handle respectively have a dumbbell head, end cap is arranged on dumbbell head, it is characterized in that fastening connection piece, axial location parts, radial location parts in addition, fastening connection piece is fixedlyed connected dumbbell head with the dumbbell handle, the axial location parts stretch into stretch into again behind the dumbbell head end dumbbell handle axially in, make between dumbbell head and dumbbell handle and can not rotate; The radial location parts upwards stretch into the dumbbell head end again in the footpath of dumbbell handle, make between dumbbell head and dumbbell handle and can not move axially; Described fastening connection piece is that axial internal thread on the dumbbell handle and packing ring, bolt constitute, and the axial internal thread on the dumbbell handle is connected with an end external screw thread of bolt through packing ring; Described axial location parts are to be made of the annular groove B on the dumbbell head, radial hole, spring and the stub pin on the dumbbell handle, annular groove B is in the dumbbell head endoporus of dumbbell head, in radial hole, stub pin one end can stretch in the annular groove B successively for spring and stub pin; Described radial location parts are to be made of the cylindrical hole on the dumbbell handle, the horizontal perforation on the dumbbell head, lateral pin, horizontal perforation is positioned on the convex shoulder annulus of dumbbell head, the axis of cylindrical hole equates that with the axial line distance of dumbbell head lateral pin and cylindrical hole, horizontal perforation are tight fits with the axial line distance and the horizontal perforation of dumbbell handle; Described end cap is to be made of cylindrical drum, wedge shape nose circle face, and the two fuses, and the wedge shape annulus is arranged on cylindrical drum, also has annular groove A and wedge shape counterbore on the dumbbell head, can allow wedge shape annulus, wedge shape nose circle face closely embed respectively.

The utlity model has the phenomenon that dumbbell head and dumbbell handle get loose in use can not take place, improved the safe in utilization of dumbbell, and structure is uncomplicated.

Description of drawings

Fig. 1 is three-dimensional (no end cap) structural representation that decomposes of the present utility model.

Fig. 2 is the utility model solid (end cap separation) structural representation.

The symbol of figure and explanation thereof: the 1st, dumbbell handle, the 11st, radial hole, the 12nd, axial internal thread, the 13rd, cylindrical hole, the 2nd, spring, the 3rd, stub pin, the 4th, dumbbell head, the 41st, dumbbell head endoporus, the 42nd, annular groove B, the 43rd, convex shoulder annulus, the 431st, axial hole, the 432nd, horizontal perforation, the 44th, cylindrical hole A, the 441st, annular groove A, the 45th, wedge shape counterbore, the 5th, lateral pin, the 6th, packing ring, the 7th, bolt, the 8th, end cap, the 81st, cylindrical drum, the 82nd, wedge shape annulus, the 83rd, wedge shape nose circle face.

The specific embodiment

Set forth embodiment of the present utility model below in conjunction with accompanying drawing.It is made up of dumbbell handle 1, dumbbell head 4, spring 2, stub pin 3, lateral pin 5, packing ring 6, bolt 7, end cap 8.Dumbbell handle 1 is connected with dumbbell head 4 through spring 2, stub pin 3, and by lateral pin 5 location, fastening by packing ring 6 and bolt 7, end cap 8 is positioned on the dumbbell head 4 bolt 7 doors.Dumbbell handle 1 to axial internal thread 12, radial hole 11, cylindrical hole 13 are arranged, is put spring 2, stub pin 3 in Handle axis successively in radial hole 11, axially internal thread 12 mates with the external screw thread of bolt 7, and cylindrical hole 13 can insert lateral pin 5; Dumbbell head 4 is short cylinders, dumbbell head endoporus 41 is at one end arranged, the other end has cylindrical hole A44 and wedge shape counterbore 45, be convex shoulder annulus 43 between dumbbell head endoporus 41 and the cylindrical hole A44, the external diameter coupling of the diameter of dumbbell head endoporus 41 and dumbbell handle 1, annular groove B42 is arranged on dumbbell head endoporus 41, the stub pin 3 that annular groove B42 can make way for spring 2 upper ends of radial hole 11 stretches into, axial hole 431 is arranged on convex shoulder annulus 43, axial hole 431 diameters are greater than the major diameter of thread of bolt 7, on convex shoulder annulus 43, also has horizontal perforation 432, horizontal perforation 432 equates with the axial line distance of dumbbell handle 1 with the axial line distance and the cylindrical hole 13 of dumbbell head 4, be lateral pin 5 on horizontal perforation 432 and the cylindrical hole 13, an end of bolt 7 is inserted in packing ring 6, stretches in the convex shoulder annulus 43 to be fastenedly connected with axial internal thread 12; Annular groove A441 is arranged on cylindrical hole A44, wedge shape counterbore 45 is arranged in the outer face of cylindrical hole A44.End cap 8 is to be made of cylindrical drum 81, wedge shape annulus 82, wedge shape nose circle face 83, cylindrical drum 81 fuses with wedge shape nose circle face 83, wedge shape annulus 82 is arranged on the outer circumference surface of cylindrical drum 81, and wedge shape annulus 82 can be positioned at annular groove A441, and wedge shape nose circle face 83 can be arranged in wedge shape counterbore 45.Described end cap 8 is to be made by polyamine fat or other nonmetallic plastic materials.

The utility model assembly method; Load onto spring 2 and stub pin 3 at the radial hole 11 of dumbbell handle 1 one ends, and be loaded in the dumbbell head endoporus 41 of dumbbell head 4, at this moment enter dumbbell head endoporus 41 behind the stub pin 3 compression springs 2, spring 2 stretches out stub pin 3 in annular groove B42, dumbbell handle 1 and dumbbell head 4 axially can not be moved; Insert lateral pin 5 from horizontal perforation 432 then, and lateral pin 5 is entered in the cylindrical hole 13, dumbbell handle 1 and dumbbell head 4 can not be rotated mutually; Behind bolt 7 one ends cover upper gasket 6, the axial internal thread 12 that screws in dumbbell handle 1 is interior fastening, the outer shroud of the wedge shape annulus 82 of end cap 8, wedge shape nose circle face 83 is embedded respectively in annular groove A 441 and the wedge shape counterbore 45, utilize the plasticity of end cap 8 materials to make itself and dumbbell head 4 fastening.

Claims

1, a kind of fixed dumbbell that anti-loosing device is arranged of forming by dumbbell handle (1), dumbbell head (4), end cap (8), two ends at dumbbell handle (1) respectively have a dumbbell head (4), end cap (8) is arranged on dumbbell head (4), it is characterized in that fastening connection piece, axial location parts, radial location parts in addition, fastening connection piece is fixedlyed connected dumbbell head (4) with dumbbell handle (1), the axial location parts stretch into stretch into again behind dumbbell head (4) end dumbbell handle (1) axially in, make between dumbbell head (4) and dumbbell handle (1) and can not rotate; The radial location parts make progress in the footpath of dumbbell handle (1), stretch into dumbbell head (4) end again, make between dumbbell head (4) and dumbbell handle (1) and can not move axially.

2, a kind of fixed dumbbell that anti-loosing device is arranged according to claim 1, it is characterized in that described fastening connection piece is that axial internal thread (12) on the dumbbell handle (1) and packing ring (6), bolt (7) constitute, the axial internal thread (12) on the dumbbell handle (1) is connected with an end external screw thread of bolt (7) through packing ring (6).

3, a kind of fixed dumbbell that anti-loosing device is arranged according to claim 1, it is characterized in that described axial location parts are to be made of the annular groove B (42) on the dumbbell head (4), radial hole (11), spring (2) and stub pin (3) on the dumbbell handle (1), annular groove B (42) is in the dumbbell head endoporus (41) of dumbbell head (4), in radial hole (11), stub pin (3) one ends can stretch in the annular groove B (42) successively for spring (2) and stub pin (3).

4, a kind of fixed dumbbell that anti-loosing device is arranged according to claim 1, it is characterized in that described radial location parts are to be made of the cylindrical hole (13) on the dumbbell handle (1), the horizontal perforation (432) on the dumbbell head (4), lateral pin (5), horizontal perforation (432) is positioned on the convex shoulder annulus (43) of dumbbell head (4), the axis of cylindrical hole (13) equates with the axial line distance of dumbbell head (4) that with the axial line distance and the horizontal perforation (432) of dumbbell handle (1) lateral pin (5) is a tight fit with cylindrical hole (13), horizontal perforation (432).

5, according to claim 1 or 2 or 3 or 4 described a kind of fixed dumbbells that anti-loosing device is arranged, it is characterized in that described end cap (8) is to be made of cylindrical drum (81), wedge shape nose circle face (83), the two fuses, wedge shape annulus (82) is arranged on cylindrical drum (81), dumbbell head (4) is gone up also has annular groove A (441) and wedge shape counterbore (45), can allow wedge shape annulus (82), wedge shape nose circle face (83) closely embed respectively.