Plug-in dumbbell fast adjusting mechanism

Abstract

The utility model provides a plug-in dumbbell fast adjusting mechanism which comprises a handle and is characterized in that the handle comprises a hollow handle tube and two sets of locking assemblies, the handle tube is provided with a step, a positioning hole, a square notch and a threaded hole, and the positioning hole and the square notch are matched with each other. The two sets of locking assemblies are combined to the two ends of the handle pipe respectively and stopped by the steps at the two ends of the handle pipe respectively, and each locking assembly comprises a locking ring and a handle cover. Through the arrangement of the locking assembly, the locking screw rod can be rapidly pulled out of the handle, after the weight pieces are increased or decreased, the locking screw rod can be rapidly inserted into the handle, and the weight pieces can be locked by screwing the locking screw rod. Meanwhile, the weight pieces are further designed to be in an opening mode, when the weight is switched, the weight pieces can be increased or decreased without completely pulling out the dumbbell handle and screwing the screw for many circles, and the weight of the dumbbell can be adjusted more conveniently and rapidly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dumbbell technical field, more specifically, it is especially related to a plug-in type dumbbell quick adjusting mechanism. BACKGROUND

[0002] Dumbbell is the commonly used arm strength training fitness equipment. The existing adjusting dumbbell structure mainly utilizes screw rod to pass through multiple weight pieces and then tightens the screw rod, so that the weight piece and handle are fixed integrally. Then the screw rod is screwed out, the weight piece is increased or reduced, and the screw rod is screwed tightly to achieve the purpose of adjusting the weight of the dumbbell.

[0003] Therefore, when adjusting the weight of the dumbbell, the two screw rods need to be rotated for multiple turns to increase or reduce the weight piece, so that it is time-consuming and laborious to switch the weight. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model is a dumbbell mechanism with adjustable weight, which can replace the weight piece more quickly to achieve the purpose of conveniently adjusting the weight of the dumbbell.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means: a plug-in type dumbbell quick adjusting mechanism, including handle, handle includes a handle pipe and two sets of locking assemblies, the handle pipe is hollow, the handle pipe is provided with steps, positioning holes, square grooves and threaded holes, two sets of locking assemblies are combined at both ends of the handle pipe respectively, and are stopped by the steps at both ends of the handle pipe, each locking assembly includes a locking ring and a handle cover, the locking ring is combined with the handle cover, and the locking ring and the handle cover are combined at the end of the handle pipe, a gland, a spring and a sliding block lock core are further arranged in each locking assembly, the sliding block lock core is inserted into the square slide of the handle cover, one side of the spring is combined into the small hole of the sliding block lock core, the other side is combined with the gland, and the gland is combined with the handle cover, both ends of the handle pipe are provided with weight pieces, the weight pieces are provided with more than one, each end of the handle pipe is provided with a locking screw, a threaded shaft and a disc are arranged on each locking screw, the threaded shaft of the locking screw is inserted into both ends of the handle pipe through the U-shaped mouth of the combined multiple weight pieces, and the disc can be in contact with the outer side surface of the weight piece at the outermost side of both ends of the handle pipe; the U-shaped mouth of the weight piece is inserted on the threaded shaft, the locking ring is provided with a cam groove, a pin shaft is inserted into the locking ring, the pin shaft passes through the U-shaped groove of the handle cover and the long groove of the sliding block lock core, two fixed plates are further arranged on the handle, and the two fixed plates are combined with the outer ends of the two handle covers respectively.

[0006] Further, the locking ring is combined with the elastic positioning column, and the elastic positioning column is combined with the positioning hole of the handle pipe.

[0007] Further, the weight piece is provided with a protrusion and a blind hole combined with each other.

[0008] Further, the fixed plate is provided with a center hole.

[0009] Further, the fixed plate is further provided with two through holes, and the fixed plate is fixed to the outer side of the handle cover by bolts.

[0010] Further, the weight piece is provided with a grabbing hole.

[0011] The utility model at least includes following beneficial effect: the utility model is through setting up locking assembly, makes locking screw rod can quickly draw out handle, and after increasing or reducing weight piece, locking screw rod can quickly insert into handle, and can lock weight piece after screwing. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is overall combination schematic view of utility model;

[0013] Figure 2 It is local partial exploded schematic view of utility model;

[0014] Figure 3 It is handle exploded schematic view of utility model;

[0015] Figure 4 It is overall combination cross section schematic view of utility model;

[0016] Figure 5 It is locking assembly action cross section schematic view of utility model;

[0017] Figure 6 It is locking screw rod after drawing out action cross section schematic view of utility model.

[0018] 10 handle;

[0019] 11 handle pipe, 111 step, 112 positioning hole, 113 threaded hole, 114 inner wall, 115 square slot;

[0020] 12 fixed plate, 121 center hole, 122 fixed hole, 123 through hole;

[0021] 13 locking ring, 131 cam groove, 132 perforation;

[0022] 14 gland;

[0023] 15 handle cover, 151 U-shaped groove, 152 round hole, 153 fixed groove, 154 inner round hole, 155 square slide;

[0024] 16 subnut;

[0025] 17 fixing bolt one;

[0026] 18 elastic positioning column;

[0027] 19 pin shaft;

[0028] 20 fixing bolt two;

[0029] 21 sliding block lock cylinder, 211 threaded groove, 212 long groove, 213 small hole;

[0030] 22 spring;

[0031] 23 fixing bolt three;

[0032] 30 inner weight piece, 301 blind hole, 302 thread, 303 U-shaped mouth, 304 grabbing hole;

[0033] 40 outermost weight piece;

[0034] 50 locking screw rod, 51 disc, 52 threaded shaft;

[0035] 60 protrusion. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0037] Example:

[0038] As shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 6 as shown:

[0039] The utility model provides a kind of plug-in dumbbell quick adjustment mechanism, including handle 10 and weight piece, handle 10 includes a handle pipe 11 and two sets of locking assembly, the inside of handle pipe 11 is hollow, locking screw rod 50 is inserted therein, handle pipe 11 is provided with the structure of step 111, positioning hole 112, square slot 115 and threaded hole 113, two sets of locking assembly are fixedly combined in the both ends of the handle pipe 11 respectively, and are stopped by the step 111 of the both ends of handle pipe 11, locking assembly includes locking ring 13 and handle cover 15, locking ring 13 is combined in handle cover 15, two groups of locking ring 13 and handle cover 15 are combined in the both ends of handle pipe 11 as locking assembly, handle pipe 11 passes through the perforation 132 in the middle of locking ring 13 and the inner circular hole 154 in the middle of handle cover 15, is fixed by fixed bolt one 17 and is screwed with threaded hole 113 by passing through the fixed groove 153 of handle cover 15, handle cover 15 is fixed with handle pipe 11;Gland 14, spring 22 and sliding block lock core 21 are also provided in each locking assembly, sliding block lock core 21 is inserted in the square slide 155 of handle cover 15, spring 22 is combined in the small hole 213 of sliding block lock core 21 on one side, and is combined in gland 14 on the other side, and the gland 14 is fixedly combined in handle cover 15 by fixed bolt three 23;Sliding block lock core 21 can be driven to a locking position and a release position in the both ends of handle pipe 11;

[0040] The weight piece of the embodiment is provided with 8, and there are 4 weight pieces in the left and right ends respectively, and is arranged in the both ends of handle pipe 11;

[0041] Handle pipe 11 is provided with one locking screw rod 50 in the both ends respectively, and each locking screw rod 50 includes a threaded shaft 52 and a disc 51, the threaded shaft 52 of locking screw rod 50 is inserted in the both ends of the handle pipe 11 by passing through the U-shaped mouth 303 of the combined multiple weight pieces, and the disc 51 can be contacted with the both end surface of handle 10 or the outside surface of the outermost weight piece 40;The weight piece is designed as open type, when switching weight, locking screw rod 50 does not have to be completely pulled out dumbbell handle 10 and screw rod does not have to be twisted many circles, and weight piece can be increased or reduced, more convenient and fast adjustment dumbbell weight.

[0042] The U-shaped mouth 303 of each weight piece is inserted on threaded shaft 52, and the protrusion 60 and blind hole 301 combined with each other are provided on each weight piece, and the longitudinal limit between weight pieces is kept.

[0043] When sliding block lock core 21 of locking assembly is in locking position, locking screw rod 50 and sliding block lock core 21 form thread 302 self-locking state, when sliding block lock core 21 of locking assembly is in release position, sliding block lock core 21 releases locking screw rod 50.

[0044] The locking ring 13 is provided with a cam groove 131, and the pin shaft 19 is inserted into the locking ring 13 and passes through the U-shaped groove 151 of the handle cover 15 and the long groove 212 of the sliding block lock core 21. According to the principle of the cam mechanism, when the locking ring 13 is actuated by an external force, the pin shaft 19 moves up and down along the U-shaped groove 151 of the handle cover 15 under the action of the cam groove 131 in the locking ring 13, and simultaneously drives the sliding block lock core 21 to move up and down, so that the threaded groove 211 of the sliding block lock core 21 enters or leaves the inner wall 114 of the handle pipe 11; after the weight piece is increased or decreased, the locking screw 50 can be quickly inserted into the handle 10, and the weight piece can be locked by screwing.

[0045] In the locking position, as shown in the position angle of the locking ring 13, Figure 1 、 Figure 2 、 Figure 4 When the locking ring 13 is placed at the first angle, the cam groove 131 on the inner side of the locking ring 13 is inserted into the position close to the outer wall of the handle pipe 11, and under the action of the spring 22, the threaded groove 211 of the sliding block lock core 21 enters the inner wall 114 of the handle pipe 11, and the locking screw 50 is inserted into the handle pipe 11. Since the long groove 212 structure is arranged at the position where the sliding block lock core 21 is inserted into the pin shaft 19, after overcoming the pressure of the spring 22 during the process of inserting the locking screw 50 into the handle pipe 11, the sliding block lock core 21 is extruded out of the inner wall 114 of the handle pipe 11, and the disc 51 of the locking screw 50 is attached to the outer side of any weight piece. After rotating the locking screw 50, the threaded groove 211 of the sliding block lock core 21 forms a threaded self-locking structure with the locking screw 50;

[0046] As shown in the position angle of the locking ring 13, Figure 5 、 Figure 6 When the locking ring 13 is placed at the second angle, the cam groove 131 on the inner side of the locking ring 13 is inserted into the position away from the outer wall of the handle pipe 11, and the threaded groove 211 of the sliding block lock core 21 leaves the inner wall 114 of the handle pipe 11, and the locking screw 50 is released. Other internal weight pieces 30 remain fixed with the locking screw 50, and the outermost weight piece 40 can be removed.

[0047] The locking ring 13 is combined with the elastic positioning column 18, the elastic positioning column 18 is combined with the positioning hole 112 of the handle pipe 11, and the locking ring 13 is fixed at the first angle or the second angle according to different states.

[0048] Two fixing plates 12 are further arranged on the handle 10, and the two fixing plates 12 are combined with the outer ends of the two handle covers 15 respectively. The fixing plate 12 is provided with a center hole 121, through which the locking screw 50 can pass, and the fixing plate 12 is provided with two through holes 123, through which the fixing bolts four 60 of the adjacent weight pieces can pass. The fixing plate 12 passes through the fixing holes 122 and the round holes 152 by means of the four fixing bolts two 20, and is fixed to the outer side of the handle cover 15 by means of the four sub-nuts 16. The weight piece is provided with a grabbing hole 304, which facilitates grabbing the weight piece.

[0049] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0050] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A plug-in dumbbell quick-adjust mechanism comprising a handle, characterized in that: The handle comprises a handle pipe and two sets of locking components, the handle pipe is hollow, and is provided with steps, positioning holes, square notches and threaded holes; the two sets of locking components are combined with the two ends of the handle pipe respectively and are stopped by the steps at the two ends of the handle pipe; each locking component comprises a locking ring and a handle cover, the locking ring is combined with the handle cover, and the locking ring and the handle cover are combined with the end of the handle pipe together; a gland, a spring and a sliding block lock core are further provided in each locking component, the sliding block lock core is inserted into a square slide of the handle cover, one side of the spring is combined with a small hole of the sliding block lock core, the other side of the spring is combined with the gland, the gland is combined with the handle cover, and the two ends of the handle pipe are provided with weight pieces, the weight pieces are provided with more than one, the two ends of the handle pipe are respectively provided with one locking screw, each locking screw is provided with a threaded shaft and a disc, the threaded shaft of the locking screw is inserted into the two ends of the handle pipe through U-shaped openings of the combined weight pieces, and the disc can contact the outer side surface of the weight piece at the outermost position of the two end surfaces of the handle; the U-shaped opening of the weight piece is inserted on the threaded shaft, the locking ring is provided with a cam groove, a pin shaft is inserted into the locking ring, the pin shaft passes through a U-shaped groove of the handle cover and a long groove of the sliding block lock core, and two fixing plates are further provided on the handle, and the two fixing plates are combined with the outer ends of the two handle covers respectively.

2. An insertable dumbbell quick-adjust mechanism as described in claim 1, wherein, The locking ring is combined with an elastic positioning column, and the elastic positioning column is combined with the positioning hole of the handle pipe.

3. An insertable dumbbell quick-adjust mechanism as defined in claim 2, wherein, The weight piece is provided with a protrusion and a blind hole combined with each other.

4. An insertable dumbbell quick-adjust mechanism as described in claim 3, wherein, The fixing plate is provided with a center hole.

5. An insertable dumbbell quick-adjust mechanism as described in claim 4, wherein, The fixing plate is further provided with two through holes, and the fixing plate is fixed to the outer side of the handle cover by means of bolts.

6. An insertable dumbbell quick-adjust mechanism as described in claim 5, wherein, The weight piece is provided with a grabbing hole.

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