CN202569291U - Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell - Google Patents
Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell Download PDFInfo
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- CN202569291U CN202569291U CN 201220059977 CN201220059977U CN202569291U CN 202569291 U CN202569291 U CN 202569291U CN 201220059977 CN201220059977 CN 201220059977 CN 201220059977 U CN201220059977 U CN 201220059977U CN 202569291 U CN202569291 U CN 202569291U
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Abstract
The utility model discloses a dumbbell which comprises an outer shell and a weight filled in the outer shell and is characterized in that an empiecement is inlaid on the outer shell, a protruding block is arranged on the empiecement, and the protruding block is arranged on the back face or the edge of the empiecement; and the protruding block is inserted into the outer shell. By means of the empiecement, the dumbbell can conveniently set a selected color for a designated area of the dumbbell, the cost is low, and the production is convenient. After the pile is coated on the surface of the empiecement, the empiecement is arranged on a holding position of the dumbbell, and the touch feel of a hand shank o a handle can be improved. Even the dumbbell is used in winter, hands of an exerciser do not feel cold when holding the dumbbell, so that the exerciser does not feel cold. The pile arranged on the hand shank or the handle has a better sweat absorbing effect, the dumbbell is not easy to slip out of the hands when being held by the exerciser, so that the usage can be safer. Due to the pile arranged on the hand shank or the handle, rich colors can be selected more easily to decorate the dumbbell, so that the aesthetic feeling of the dumbbell can be increased by the choice of the colors, and emotion of the exerciser when the exerciser takes exercises can be improved by the choice of the colors as well, and the cost is low.
Description
Technical field
The utility model relates to a kind of dumbbell, blowing kettle-bell holder handle, reaches the blowing kettle-bell.
Background technology
Mostly dumbbell or kettle-bell are that metal material is processed or the interior weight of filling of injection casing is processed.The dumbbell of metal material or injection casing structure or kettle-bell, it all has the structure that is used to grip, and becomes handle or handle.There are multiple shortcoming and defect in handle or handle commonly used.The first is used inconvenience.Especially during winter, handle or handle temperature are often lower, are inappropriate for very much exercise when gripping.It two is absorbing sweat weak effects, and people tend to perspire when taking exercise, and sweat flow on hand smoothly or on the handle time, handle or handle can skid.Especially concerning the kettle-bell of injection moulding (or blowing), its level and smooth plastic handle skids easily.Firmly gripping handle or handle and handle or handle are stressed when big if desired, and handle that skids or handle can make the hand that dumbbell or kettle-bell break away from the person taking exercise.Especially concerning the kettle-bell of injection moulding (or blowing), its kettle-bell body is constantly upset possibly in use, and the plastic handle that skids breaks away from person taking exercise's hand more easily.It three is that color is single, and abundant color can't be set.The dumbbell or the kettle-bell of existing injection moulding (or blowing) are provided with multiple multicolour pattern like need, and processing is difficulty very.Especially only in the time of need regional areas such as handle or handle being provided with colour, processing is difficulty more.
The utility model content
One of purpose of the utility model is in order to overcome deficiency of the prior art, a kind of dumbbell that color can be set at the dumbbell regional area easily to be provided.
For realizing above purpose, the utility model is realized through following technical scheme:
Dumbbell comprises the mass of filling in shell and the shell, it is characterized in that described shell is inlaid with empiecement, and said empiecement is provided with projection, and described projection is arranged at the empiecement back side or empiecement edge; Said projection inserts in the shell.
Preferably, said empiecement color and color of shell are inequality.
Preferably, said empiecement is selected from one or several composite of resin, plastics and rubber.
Preferably, described empiecement is a moulding.
Preferably, said empiecement front is implanted with suede.
Preferably, the thickness of described suede is 0.5mm-0.75mm.
Preferably, described empiecement number is more than two, and plural empiecement symmetry is embedded on the shell.
Preferably, the empiecement back side has groove.
Preferably, described shell is provided with storage tank, and described empiecement is embedded in the storage tank.
Preferably, the height that is arranged at the projection at the empiecement back side is 1/2nd to 1.5 times of outer casing thickness.More preferably be, the height of described projection is smaller or equal to the thickness of shell, but is not less than 1/2nd of outer casing thickness.
Preferably, described dumbbell comprises the dumbbell of kettle-bell and two dumbbell head structures.
Preferably, described shell is the integral structure of blow molding.
Preferably, said shell is provided with opening, and described opening part is provided with lid, and lid is sealed opening.
Preferably, described lid comprises base plate and barrel, and barrel is arranged on the base plate.
Preferably, base plate is provided with column, and barrel is around the column setting; Said post end is a cone shape.
Preferably, described column is provided with the protrusion that protrudes in column, and said protrusion is around the column setting.
Preferably, on the direction of base plate to post end, described protrusion is the gradually little formula structure of size.
Preferably, on the direction of base plate to post end, described protrusion is the gradually little formula structure of cross section.
Preferably, described protrusion along the circumferential direction is provided with one or more breach, and said breach self-support axis of a cylinder is to extending through protrusion.
Preferably, said protrusion number is more than two, and plural protrusion is along the column axial distribution.
Preferably, barrel and opening shape and size adapt; The barrel outer peripheral face is provided with draw-in groove; The edge card of said opening is located in the draw-in groove.
Preferably, the cross-sectional area that surrounds of described barrel is less than the cross-sectional area of base plate.
Preferably, described barrel outer peripheral face is provided with the flange that a circle protrudes in barrel, is draw-in groove between described flange and the base plate.
More preferably be that described flange sidewall is an arc.
Preferably, the upper end of described barrel has an inclined-plane.
Preferably, be filled with mass in the described cavity volume, said mass comprises binding material.
Preferably, said binding material is selected from the composition or the adhesive of cement and water.More preferably be that adhesive is a macromolecule adhesive.
Preferably, said mass also comprises weighting material, and said weighting material is the density of density greater than binding material.
Preferably, said weighting material comprises one or more in river sand, ore in sand form, iron sand, shot, the steel leftover bits and pieces.
The manufacturing approach of dumbbell is characterized in that, (1) provides empiecement, and empiecement is positioned in the blow mold; (2) the blowing material is positioned over blow molding in the blow mold; In blowing material blow-moulding process, empiecement is embedded on the shell; (3) cooling, the demoulding.
Preferably, the empiecement back side has groove.
Two of the purpose of the utility model is in order to overcome deficiency of the prior art, a kind of blowing kettle-bell holder handle that color can be set at the regional area of kettle-bell easily to be provided.
For realizing above purpose, the utility model is realized through following technical scheme:
A kind of blowing kettle-bell holder handle; The handle body of this blowing kettle-bell comprises handle body crossbeam and handle body bend; It is characterized in that; This holder handle is holder handle crossbeam, holder handle bend or the holder handle crossbeam that is formed in one and holder handle bend, this holder handle be with corresponding handle body crossbeam, handle body bend or with the identical shape of whole handle body.
Preferably, on the inner surface of the inner surface of said holder handle crossbeam and/or holder handle bend, be distributed with a plurality of ridges.
Preferably, said ridge is sphere, box-shaped or the salient point of taper or the projection of bar shaped.
Preferably, said a plurality of ridge is arranged evenly along the horizontal direction equal intervals of holder handle crossbeam.
Preferably, be distributed with a plurality of ridges on the upper edge of said holder handle and/or the lower edge.
Preferably, said ridge is bent to inner surface one lateral bending of holder handle.
Preferably, the end of said holder handle bend is distributed with a plurality of ridges.
Three of the purpose of the utility model is in order to overcome deficiency of the prior art, a kind of blowing kettle-bell that color can be set at the kettle-bell regional area easily to be provided.
For realizing above purpose, the utility model is realized through following technical scheme:
A kind of blowing kettle-bell, it comprises handle, and said handle comprises leader's body, it is characterized in that, and this blowing kettle-bell also comprises the described holder handle of aforementioned arbitrary technical scheme, said holder handle and said handle body is affixed is integral.
In the utility model, the dumbbell and the kettle-bell of two dumbbell head structures are referred to as dumbbell.
Dumbbell in the utility model use empiecement can be easily as the appointed area of dumbbell selected color to be set, and cost is low, and is convenient for production.After empiecement surface flocking, be arranged at the holding area of dumbbell, can improve the feel of handle or handle.Even use in winter, person taking exercise's held is warm on suede, thereby can not feel cold.Suede is set on handle or the handle can has better absorbing sweat effect, when the person taking exercise grips, be difficult for skidding and slip out of the hand, therefore use safer.Suede is set on handle or the handle can selects to enrich color with being more prone to, both can pass through to select color to increase the aesthetic feeling of dumbbell with the decoration dumbbell, the mood in the time of can also passing through selection color raising person taking exercise's exercise, and cost is low.
Description of drawings
Fig. 1 is the dumbbell structural representation among the embodiment 1
Fig. 2 is one of them empiecement front view.
Fig. 3 is the side view of empiecement shown in Figure 2.
Shown in Figure 4 is the structural representation of embodiment 2.
Shown in Figure 5 is kettle formula dumbbell front view among the embodiment 3.
Fig. 6 is the kettle formula dumbbell vertical view among Fig. 5.
Fig. 7 is the A-A cutaway view of Fig. 5.
Fig. 8 A is the shell front view that empiecement is not set among the embodiment 3.
Fig. 8 B is the shell vertical view that the flocking matrix is not set among the embodiment 3.
Fig. 8 C is the shell A-A cutaway view that empiecement is not set among the embodiment 3.
Fig. 9 is the D part enlarged drawing among Fig. 8 C.
Figure 10 is the empiecement structural representation among the embodiment 3.
Figure 11 is the cap structure sketch map among the embodiment 3.
Figure 12 is the lid A-A cutaway view among the embodiment 3.
Figure 13 is the kettle formula dumbbell front view in the replacement scheme of embodiment 3.
Figure 14 is the kettle formula dumbbell vertical view in the replacement scheme of embodiment 3.
Figure 15 is the dumbbell front view among the embodiment 4.
Figure 16 is the structural representation of the blowing kettle-bell of the utility model embodiment 5.
Figure 17 is the structural representation of the holder handle of the utility model embodiment 5.
Figure 18 is the stereogram of holder handle of the blowing kettle-bell of the utility model embodiment 6.
Figure 19 is the front view of holder handle of the blowing kettle-bell of the utility model embodiment 6.
Figure 20 is the structural representation of the blowing kettle-bell of the utility model embodiment 7.
Figure 21 is the structural representation of the holder handle of the utility model embodiment 7.
Figure 22 is the stereogram of holder handle of the blowing kettle-bell of the utility model embodiment 8.
Figure 23 is the front view of holder handle of the blowing kettle-bell of the utility model embodiment 8.
Figure 24 is the sorrowful view of holder handle of the blowing kettle-bell of the utility model embodiment 8.
Figure 25 is the front view of holder handle of the blowing kettle-bell of the utility model embodiment 9.
Figure 26 is the front view of holder handle of the blowing kettle-bell of the utility model embodiment 9.
The specific embodiment
The application inventor finds that after deliberation the principal element that influences the dumbbell result of use comprises: the one, and the absorbing sweat weak effect.Though some handle or handle are provided with rubber sleeve and are used for anti-skiddingly, it only can be anti-skidding when hand is not perspired.Because rubber sleeve absorbing sweat weak effect, perspiring especially at hand, sweat is difficult to play anti-skidding effect more for a long time.And the exercise of large amount of exercise tends to follow more sweat, possibly cause to skid.Therefore, the unsuitable large amount of exercise of the handle of existing dumbbell or handle is taken exercise and is used.It two is that inconvenient temperature uses when low.Handle or handle commonly used, no matter metal material still is the injected plastics material manufacturing, and the handle temperature is lower.When temperature such as winter used lower season, the person taking exercise gripped ice-cold handle and takes exercise, and can't continue to take exercise the enthusiasm that influence is taken exercise.It three is that feel is poor, no matter is the metal material manufacturing, still outside metal material, coats rubber sleeve, and its material all has stronger hardness, and it is hard to hold sense, and feel is poor.It four is dull colorings, and abundant colors can't be set.Material such as metal commonly used or be black, or be white, can't be set to colour.As everyone knows, abundant colors can improve people's motion enthusiasm, and dull color result of use is not good.Material like the need dumbbell is set to colour, and is with high costs
The shell of dumbbell commonly used is blow molding, and is the shell of integral type.Therefore, can't be set to various colors by shell, can't various colors be set to form pattern at shell more.As the dumbbell shell be set to redness, yellow equals blowing material true qualities various colors, manufacturing cost is high.The utility model provides a kind of dumbbell long-pending little with empiecement or mop gesture and facial expression, can be set to shades of colour easily, and cost is low.Empiecement or mop hand are arranged on the dumbbell shell, can think the color of dumbbell shell adds rich.But also can form the pattern of wanting through the empiecement of different colours, and be arranged on the dumbbell shell, can increase the aesthetic feeling of dumbbell.The color of empiecement or mop hand can be selected the manufacture of materials of selecting color for use, also can realize through the suede of planting this kind color on its surface.
Suede is planted in empiecement or holder grip surface, after flocking is accomplished, again empiecement is arranged at handle or handle or other selected positions of dumbbell.Adopt empiecement particularly important for only need suede is arranged at the holding area of dumbbell selectively and not need full whole handle of flannelette or handle the time.Because mostly handle or handle are cylindrical, the characteristics of flocking technique have determined can't be in the flocking equably of columniform body surface.The technical scheme of the utility model only needs to make the empiecement of suitable shape and structure or hold in the palm handle according to the position of design in advance, again with empiecement or ask handle to be arranged on handle or the handle to get final product.So both help carrying out smoothly of flocking, helped suede is arranged at the position of handle, handle or other needs again.Make that so also the position be more prone to suede is positioned on the dumbbell is more controlled.Adopt empiecement, the suede that also more helps on the dumbbell is set to various colors, pattern etc., can design more various dumbbell attractive in appearance.
The application inventor finds after deliberation, at handle or handle suede is set, and especially at the position that grips suede is set, and can strengthen the absorbing sweat effect of handle, on handle, increases frictional force, the possibility of skidding when reducing the large amount of exercise exercise.The suede that is provided with has certain flexibility, can improve the feel when gripping.When low temperature seasons such as winter used, what grip suede felt warmer.The low temperature of handle or handle can not be passed to staff, has increased the applicable time of dumbbell.Comparatively speaking, the color of suede is set to colour and realizes that more easily cost is lower, and therefore, being provided with at handle or handle that suede helps is that dumbbell adds abundant colors, helps transferring person taking exercise's exercise enthusiasm.
But the dumbbell of integrated pair of dumbbell head structure or kettle formula dumbbell are provided with suede as only needing at the dumbbell privileged site, are difficult to realize.Because the electrostatic spinning method that flocking is adopted as not adopting empiecement, then needs whole dumbbell is positioned in the flocking plant, full suede will be all planted on the dumbbell surface like this.But in actual use, it is not best technical scheme that full suede is all planted on the dumbbell surface, the one, and cost is high, and the consumption of suede cost more at most is high more; The 2nd, to make inconveniently, the shape of dumbbell causes existing can't flocking or the flocking dead angle of flocking effect difference, all flocking equably.If can not all flocking equably, then can reduce the product appearance aesthetic feeling on the dumbbell surface; If all evenly flocking on the dumbbell surface then will inevitably increase the production difficulty.
Therefore, the utility model adopts empiecement, at first confirms the position of empiecement on dumbbell, is selected shape or size according to the residing Position Design of empiecement.Again suede is planted in the empiecement surface, after flocking is accomplished, again empiecement is arranged at handle, person hand or other selected positions.Adopt empiecement particularly important for only need suede is arranged at the holding area of dumbbell selectively and not need full whole handle of flannelette or handle the time.Because mostly handle or handle are cylindrical, the characteristics of flocking technique have determined can't be in the flocking equably of columniform body surface.The technical scheme of the utility model only needs according to the position manufacturing suitable shape of design in advance and the empiecement of structure, empiecement is arranged on handle or the handle to get final product again.So both help carrying out smoothly of flocking, helped suede is arranged at the position of handle, handle or other needs again.Make that so also the position be more prone to suede is positioned on the dumbbell is more controlled.Adopt empiecement, the suede that also more helps on the dumbbell is set to various colors, pattern etc., can design more various dumbbell attractive in appearance.
The empiecement of the utility model is fit to all the dumbbell of handle or handle is set, and handle or handle are used to grip.Dumbbell in the utility model had both comprised the dumbbell of two bell header structures, also comprised kettle formula dumbbell.
Empiecement in the utility model is particularly useful for filling in the enclosure the dumbbell that mass is processed.The dumbbell shell both can be injection mo(u)lding; It also can be blow molding.The utility model preferably adopts the shell of blow molding.
Adopt the empiecement of various colors in the utility model, can be used as the standard of distinguishing different size, as adopt blue empiecement to be arranged on the dumbbell of six kilogram weights; Peach empiecement is arranged on the dumbbell in two kilograms, adopts various colors sign different specifications, use more convenient.
Sheathing material can adopt the thermoplastic shaping material, like polystyrene, polyvinyl chloride, high density polyethylene (HDPE), low density polyethylene (LDPE), medium density polyethylene, polyvinyl chloride, polypropylene, polyamide, Merlon and PETG etc.But the utility model preferably adopts the pvc material of blow molding.
The color of empiecement or mop hand can be selected the manufacture of materials of selecting color for use, also can realize through the suede of planting this kind color on its surface.
Empiecement can be one or several material that is composited of resin, rubber or plastics.Empiecement in the utility model preferably adopts thermoplastic shaping resin and plastics.More preferably adopt the material that is suitable for injection mo(u)lding; Like polyvinyl resin, acrylic resin, Corvic, polystyrene resin, polycarbonate resin, polyamide, polyacetal resin, sex change polyphenylene oxide resin, sex change PPE resin, mylar, polyphenylene sulfide, the plastics that gather the aryl ester resin and adopt these resins to process.
Adopt resin, plastics or rubber to process empiecement, the empiecement longer service life.The utility model is preferably produced empiecement with the above-mentioned material injection mo(u)lding.
Empiecement can be a sheet or block, and its thickness and dumbbell outer casing thickness adapt, and are preferably the thickness that empiecement thickness is no more than shell.The empiecement top view both can be rectangle, square or other polygons; It also can be the shape of rules such as circle, ellipse; It also can be irregular shape.Empiecement is arranged on the shell, and when especially being embedded on the shell, the shape or the structure at its shape and structure shell residing with it place match, so that empiecement can combine together with shell.When being on the columniform handle, need have the radian that adapts with the handle outer peripheral face.
Suede in the utility model is both applicable to needing suede to plant the dumbbell of completely whole handle; Only also be fit to suede is arranged on the dumbbell at the position that needs grip.The preferred dumbbell that is fit to only need be provided with suede in the holding area.
In the utility model, suede both can be implanted on the empiecement with certain shape or pattern, also can pattern is not set be implanted on the empiecement.Suede can also be implanted on the empiecement with a kind of single color.
As a kind of preferred structure of the utility model, said suede is for being arranged at interval the horizontal stripe shape of grip surface, perhaps nicking shape, perhaps cross shaped head anyhow.Thereby can under the situation that reaches flocking effect equally, further improve the frictional force between the palm of the hand and the handle, prevent to skid.
In the utility model, at first suede is implanted in the empiecement surface, again empiecement is arranged on handle or the handle.In the utility model, suede both can have been planted completely whole handle, also can only be implanted in the position that need grip.Preferably be implanted in the position that need grip.
In the utility model, the thickness of suede can confirm that the thickness of the preferred suede of the utility model is 0.5mm-0.75mm according to instructions for use.Thickness is lower than 0.5mm or greater than the suede of 0.75mm, absorbing sweat effect, feel, outward appearance all can descend.Especially be longer than the suede of 0.75mm, because long and easy lodging on handle, influences attractive in appearance.
Suede in the utility model both can adopt nylon suede, also can adopt viscose suede.
In the utility model, flocking can be adopted electrostatic spinning method or mechanical flocking method.The preferred electrostatic spinning method that adopts.Electrostatic spinning is utilize the electric charge same sex to repel each other the physical characteristic that there is a natural attraction between the sexes; Fine hair is placed in the electronegative container, makes negative electrical charge on the fine hair band, be placed on the object that needs flocking under the condition of zero potential or ground connection; Mobile containers is near being made electronegative container by the flocking object and being formed a high voltage electric field between the plant; Fine hair in container be negative electrical charge, receive different current potential by the attraction of plant, become vertical configuration to quicken to fly on the body surface that needs flocking; Owing to scribbled adhesive by plant, fine hair is just by vertical sticking being implanted in by on the plant.
In the utility model,, utilize adhesive that suede is fixedly secured on the empiecement surface at empiecement surface-coated adhesive.Adhesive can be selected according to the material of empiecement, if can secure adhesion in the empiecement surface.
At first empiecement is processed shape or the structure that is fit to be arranged on handle or the handle, again suede is planted in the empiecement surface; Also can earlier suede be planted in the empiecement surface, again empiecement processed shape or the structure that is fit to be arranged on handle or the handle.The empiecement that will be implanted with suede at last is installed on handle or the handle.Empiecement can through make, adhesive is bonding, utilize the viscous force of empiecement and shell or handle bonding, or utilize modes such as other securing member such as screw to be arranged on handle or the handle.
The utility model is preferably the empiecement that adopts the injection molding material injection moulding to process.The empiecement that injection moulding is produced especially is suitable for blow molding into the dumbbell shell of type.Help making empiecement and handle or handle to have unified shape so more; When a certain position is provided with empiecement on columned handle or handle; Then injection moulding can be produced the empiecement of suitable radian easily; When empiecement is arranged on handle or the handle more easily and handle or handle combine together, and can not give prominence to shell, the outer surface of handle or handle is more smooth.In fact, the empiecement in the utility model adopts moulding, and shell adopts blow molding, is more prone to the smooth dumbbell of production appearance.After empiecement is processed in injection moulding, suede is planted on empiecement, empiecement is positioned over corresponding position in the blow mold again, and the blowing material is positioned over blow molding in the blow mold.In blow-moulding process, blow mold has than higher temperature.Moulding is the meeting deliquescing under high temperature action, and during blow molding, shell also can be exerted pressure to moulding by gas pressure; Empiecement can be close to the blow mold inwall like this, and blowing is accomplished, and then empiecement is embedded on the shell; And empiecement and shell have unified shape, and it is smooth that its appearance also can keep.The empiecement that the shell of blow molding and injection moulding are processed has certain viscosity when at high temperature softening, utilizes both viscosity can both be clung, and behind cooling forming, both connections are tightr.In the blowing process, because the blowing material is soft, the blowing material forms the storage tank that holds empiecement; Projection also can insert in the blowing material, promptly forms empiecement after the cooling and is embedded in shell, projection and is inserted in the integral structure in the shell.And, the smooth no concave-convex sense of its outer surface, convenient finishing.
In the utility model, fill mass in the enclosure and make dumbbell reach the weight of setting.
Above listed various technical scheme both can adopt separately, also can combined use.
Because the holding area is not the plane usually, is mostly arcwall face; Therefore when empiecement is arranged at the holding area,, influence its service life owing to frequent stressed effect causes empiecement to break away from from shell.Preferably be employed in the empiecement back side or the empiecement edge that injection moulding processes in the utility model projection is set.In blow-moulding process, projection can insert in the shell.Insert the interior projection of shell and help empiecement is securely fixed on the shell, can prevent that empiecement from separating with shell, its longer service life.
Projection can only be arranged on the empiecement back side, also can only be arranged on the empiecement edge.Be preferably and not only be arranged on the empiecement back side but also be arranged on the empiecement edge.When projection is arranged on the empiecement edge, both can only be arranged on a lateral edges, also can all be provided with around the edge of empiecement.
The shape of projection can be the three-dimensional shape of rule, also can be irregular three-dimensional shape.The three-dimensional shape of rule such as cylinder, cone, square, cuboid; Also can be strip, bulk.
Insert in the shell owing to be arranged at the projection at the empiecement back side, puncture shell for avoiding projection, the height that is arranged at the projection at the empiecement back side is 1/2nd to 1.5 times of outer casing thickness.More preferably be, the height of described projection is smaller or equal to the thickness of shell, but is not less than 1/2nd of outer casing thickness.Like this, when blowing, projection can not puncture shell and insert in the cavity volume.Puncture shell like projection, then can influence carrying out smoothly of blowing, so the empiecement in the utility model can not influence carrying out smoothly of blowing.
The base plate shape is identical with opening shape, both can be circular, also can be polygon.Preferably, the shape of barrel is identical with opening shape, to increase the compactness that opening contacts with barrel.The barrel upper end is provided with the inclined-plane, the resistance in the time of can reducing barrel insertion mass.Preferably, when on the barrel flange being set, the size of barrel is identical with opening size, and flange dimension is a bit larger tham the size of opening.Be provided with like this, can make a little firmly and could flange be inserted in the cavity volume, after flange inserts in the cavity volume, the barrel difficult drop-off.Like barrel flange is not set but draw-in groove is set, then the size of barrel is a bit larger tham opening, makes edge of opening be stuck in the draw-in groove like this, the barrel difficult drop-off.Dumbbell in the utility model, its lid is provided with barrel, can be one with the barrel bonding after the mass in the dumbbell condenses, and can prevent that lid from coming off.Draw-in groove is set on the barrel, and the shell aperture edge is stuck in the draw-in groove, further reinforces lid in the shell upward stability.The draw-in groove of design can prevent that lid from coming off before mass condenses.The sidewall of flange adopts the arc design, can easily flange be inserted in the shell.The cross-sectional area that barrel surrounds makes base plate is stuck in outside the shell bond area that lid both can be inserted into to be increased in the shell with mass less than the cross-sectional area of base plate, opening is sealed fully.Protrusion on the column, upper end size both can be inserted column in the mass less than the lower end size easily; Resistance in the time of also can increasing column and extract is fixing more firm.Column is set on the bottom, has increased the contact area of itself and mass, fixing more firm.
Below in conjunction with accompanying drawing the utility model is carried out detailed description:
Embodiment 1
Fig. 1 is the dumbbell structural representation among the embodiment 1.As shown in Figure 1, dumbbell, it is made up of the mass of filling in the shell of blow molding and the shell.Shell comprises handle casing 1 and two dumbbell head shells (2,3).Two dumbbell head shells (2,3) are arranged at the two ends of handle casing 1 respectively.Handle casing 1 is an integral structure with dumbbell head shell (2,3).Handle casing 1 is cylindric.The grip part of handle casing 1 along the circumferential direction is arranged at intervals with six empiecements 12 (shown in the figure 3) equably.The color of three empiecements 12 is red and different with the color of handle casing 1.Dumbbell head 3 ends are provided with opening, through opening mass are filled in the cavity volume of shell.After filling up, use end cap 31 to seal opening.
Fig. 2 is one of them empiecement front view.Fig. 3 is the side view of empiecement shown in Figure 2.Like Fig. 2, shown in Figure 3, empiecement 12 is an arc, and its radian is decided according to the radian of the position on its residing handle 1.Empiecement 12 back sides are provided with first projection 13 that protrudes in empiecement 12.First projection, 13 numbers are more than two, are distributed in empiecement 12 back sides.The thickness of first projection 13 is 3/4ths of shell 410 thickness.Empiecement 12 edges are provided with 12 second projections 14.Second projection 14 stretches out from empiecement 12 edges.Preferred second projection 14 that adopts has and empiecement 12 continuous shape, and promptly second projection 14 has the arcuate shape continuous with empiecement 12.
During production, empiecement 12 adopts polyethylene or polypropylene injection moulding to produce according to its present position design shape.Injection moulding is positioned over empiecement 12 the corresponding position of blow mold and is close to the blow mold inwall after accomplishing, the blowing material is positioned in the blow mold, and be shell with the blow molding of blowing material again.During blowing, the blowing material is under the high temperature and soft and have corresponding viscosity, the blowing material surround empiecement 12 and with its tight contact.Blowing is accomplished, shell cooling back hardening, and empiecement 12 is embedded in case surface.In the blowing process, because the blowing material is soft, the blowing material forms the storage tank (not shown) of holding empiecement 12; First projection 13 and second projection 14 also can insert in the blowing material, promptly form empiecement 12 after the cooling and are embedded in shell, first projection 13 and second projection 14 and are inserted in the integral structure in the shell.And, the smooth no concave-convex sense of its outer surface, convenient finishing.
Both also can only keep one first projection 13 and second projection 14, also can play the effect that empiecement 450 is fixedly secured.Both exist first projection 13 and second projection 14 simultaneously, and fixed effect is better.
Embodiment 2
Shown in Figure 4 is the structural representation of embodiment 2.As shown in Figure 4, the difference of present embodiment and embodiment 1 is that six empiecement 12 surfaces are implanted with red suede 11.Empiecement 12 fronts scribble adhesive, utilize the electrostatic spinning method that suede 11 is planted in empiecement 12 fronts.Adhesive sticks to suede 11 on the empiecement 12 securely.The thickness of suede 11 is 0.5mm.
During production, empiecement 12 adopts polyethylene or polypropylene injection moulding to produce according to its present position design shape.Injection moulding at its front surface coated adhesive, utilizes the electrostatic spinning method that suede 11 is planted in the front after accomplishing.Adhesive with suede 11 secure adhesion in empiecement 12 fronts.Flocking is positioned over the empiecement that is implanted with suede 11 12 the corresponding position of blow mold and is close to the blow mold inwall after accomplishing, the blowing material is positioned in the blow mold, and be shell with the blow molding of blowing material again.During blowing, the blowing material is under the high temperature and soft and have corresponding viscosity, the blowing material surround empiecement 12 and with its tight contact.Blowing is accomplished, shell cooling back hardening, and empiecement 12 is embedded in case surface.In the blowing process, because the blowing material is soft, the blowing material forms the storage tank (not shown) of holding empiecement 12; First projection 13 and second projection 14 also can insert in the blowing material, promptly form empiecement 12 after the cooling and are embedded in shell, first projection 13 and second projection 14 and are inserted in the integral structure in the shell.And, the smooth no concave-convex sense of its outer surface, convenient finishing.
Embodiment 3
Shown in Figure 5 is kettle formula dumbbell front view.Fig. 6 is the kettle formula dumbbell vertical view among Fig. 5.Fig. 7 is the A-A cutaway view of Fig. 5.Dumbbell in the present embodiment is a left-right symmetric with the A-A cutting line.Like Fig. 5, Fig. 6 and shown in Figure 7, dumbbell 400, it is shaped as the kettle formula.Its front view and rearview symmetry.Dumbbell 400 structures comprise the interior mass 420 of filling of shell 410 and shell.Its shell 410 comprises dumbbell body housing 411 and handle shell 412.Handle shell 412 is arranged at dumbbell body housing 411 tops, and its grip part is cylindric, and two ends are connected on the dumbbell body housing 411.Dumbbell body housing 411 and handle shell 412 structure that is formed in one.Handle shell 412 is used to grip.Shell 410 is blow molding.Form at the matched moulds place in shell 410 blow-moulding process and close outer loft 481 and interior spue line 482.Outer loft 481 is relatively inside and outside with interior spue line 482 positions.Outer spue line 481 is along dumbbell one week of surface.Interior spue line 482 is around 483 1 weeks of through hole between handle shell 412 and the dumbbell body housing 411.Handle shell 413 is provided with two empiecements 450.Two empiecements 450 all extend on the dumbbell body housing 411 from handle shell 412.Spue line 482 both sides in two empiecements 450 are symmetricly set in, and be that the center is arranged on dumbbell body housing 411 and the handle shell 412 symmetrically with interior spue line 482.The color of two empiecements 450 is a pink.
Be inlaid with label 440 on the dumbbell body housing 411.Label 440 also is an empiecement.Indicate the weight that dumbbell 400 is arranged on the label 440.Dumbbell body housing 411 is the boundary with curved groove 415, is divided into upper half 416 and bottom half 417.Curved groove 415 is set, makes dumbbell global design sense stronger, more attractive in appearance.Dumbbell body housing 411 bottoms are equipped with four rubber blankets 460 (shown in the figure two), and rubber blanket 460 can prevent dumbbell and ground friction, damage ground.
As shown in Figure 7, shell 410 is provided with cavity volume, and cavity volume comprises dumbbell body cavity volume 470 and handle cavity volume 480.Be filled with mass 420 in the cavity volume.Mass 420 is full of the cavity volume of whole casing 410, promptly all is filled with mass 420 in dumbbell body housing 411 and the handle shell 412.Mass 420 is made up of water, cement and yellow ground.Dumbbell body housing 411 bottoms are provided with opening 418 (shown in Fig. 8 C), and water, cement and yellow ground are filled in the cavity volume via opening 418.Opening 418 places are provided with lid 430.Lid 430 comprises interconnective circular bottom plate 431 and cylindrical column 432.Base plate 431 is sealed opening, and column inserts in the mass 420.After water, cement and yellow ground are filled the cavity volume of shell 410, before the three is condensed, column 432 is inserted in the mass 420, treat that water, cement and yellow ground condense after, column 432 is condensed into one.Through mass 430 base plate 431 is securely fixed in shell 410 bottoms, the opening of can 410.
As shown in Figure 7, dumbbell body cavity volume 470 and handle cavity volume 480 are communicated with through two imports that are oppositely arranged 490 (shown in the figure one).Two empiecements 450 are laminated structure.Two empiecement 450 front and back are symmetrical set, and are axial symmetry with interior spue line 482 promptly.Empiecement 450 is the injection molded moulding of polyethylene.Empiecement 450 extends to dumbbell body 411 surfaces from handle 412.Dumbbell body housing 411 bottoms are provided with circular open 418.Via opening 418 water, cement and yellow ground are poured in the cavity volume of shell 410.Dumbbell body housing 411 bottoms are provided with step cutting pattern 419 around opening 418.
Fig. 8 A is the shell front view that empiecement is not set among the embodiment 3.Fig. 8 B is the shell vertical view that the flocking matrix is not set among the embodiment 3.Fig. 8 C is the shell A-A cutaway view that empiecement is not set among the embodiment 3.Fig. 9 is the D part enlarged drawing among Fig. 8 C.Like Fig. 8 A, Fig. 8 B, Fig. 8 C, shown in Figure 9, shell 410 is provided with two storage tanks 4131 that are used to hold empiecement 450.Each storage tank 4131 all extends on the dumbbell body housing 411 from handle shell 412.Empiecement 450 is arranged in the storage tank 4131.Figure 10 is the empiecement structural representation.Shown in figure 10, empiecement 450 back sides are provided with projection, and it comprises first projection 451 and second projection 452.Two ranked first projection 451 protrudes in empiecement 450.One row is near empiecement 450 inside edges 453; Another row is near outer ledge 454.Whenever ranked first projection 451 numbers is more than two, is distributed in empiecement 450 back sides.Place, empiecement 450 inside edges is provided with second projection 452 that protrudes in empiecement 450.Second projection 452 stretches out from empiecement 450.The thickness 453 at place, the inside edge of empiecement 450 and the thickness at outer ledge 454 places make its back side form groove-like greater than the thickness between the two position.Groove-like helps empiecement 450 and is fastened on the handle 412, makes both connections tightr.
The method that shell 410 was produced and be installed on to empiecement 450 is: at first utilize the injection molding material injection mo(u)lding.Empiecement 450 is positioned over appointed positions in the blow mold, polyvinyl chloride blowing material is positioned over blow molding is a shell 410 in the blow mold.Under high temperature, be in soft state during the blowing of blowing material, first projection 451 and second projection 452 are inserted in the blowing material.The blowing material is owing to be in soft condition, and its edge fully contacts with empiecement, and utilizes both adhesive bond to be one.After the blow molding, cooling had both got shell 410.Empiecement 450 is embedded in shell 410 surfaces.First projection 451 and second projection 452 are inserted in the shell 410, prevent to break away from when empiecement 450 is stressed shell 410.
Shown in Figure 11 is the cap structure sketch map.Figure 12 is a lid A-A cutaway view.Like Figure 11, shown in Figure 12, lid 430 comprises circular base plate 431 and cylindrical vertical column 432.Column 432 ends 4321 are coniform, the resistance when setting can reduce column 432 insertion cement and yellow ground like this, and it is easier to produce.Column 432 is provided with the protrusion 433 that protrudes in column 432.Protrusion 433 is provided with around column 432.Protrusion 433 numbers are two, axially distribute up and down along column.Two protrusion 433 shapes are identical with structure.Protrusion 433 is the gradually little formula shape of cross section from base plate 431 to post end 4321 directions; Be the cross-sectional areas of its upper end 4331 cross-sectional areas less than bottom 4332; Resistance when setting also can reduce column 432 insertion cement and yellow ground like this, it is easier to produce.Protrusion 433 is provided with breach 4333.Breach 4333 axially runs through protrusion 433 along column.Breach 4333 is set, the resistance in the time of can further reducing column 432 insertion cement and yellow ground.Lid 431 is provided with barrel 434.Barrel 434 around column 432 ground with the circle setting.Lid 431 is formed a cylinder with barrel 434.The cross-sectional area that barrel 434 surrounds is less than the cross-sectional area of base plate 431.Barrel 434 upper ends have an inclined-plane 4341.Barrel 434 outer peripheral faces are provided with the flange 435 that protrudes in barrel 434.The distance that flange 435 and base plate 431 are set at interval is a draw-in groove 436 between flange 435 and the base plate 431.The cross-sectional area of draw-in groove 436 and opening 418 adapt.Lid 430 is injection moulding production.
Install before the lid 430, at first water, cement and yellow ground are filled in the cavity volume of shell 410, and are full of.Before cement and yellow ground solidify, the column 432 of lid 430 is inserted in cement and the yellow ground.Base plate 431 rides against step 419 places, so the smooth no concave-convex sense of shell 410 outer surfaces.Because shell 410 forms for plastics blow molding, it has certain elasticity, even therefore flange 435 is slightly larger than opening 418, as long as exert oneself slightly, just can flange 435 be inserted in the opening 418, so that the edge card at opening 418 places is located in the draw-in groove 436.The edge at opening 418 places is blocked by flange 435 and base plate 431.Cement and yellow ground need static a period of time to solidify.Before cement and yellow ground solidified, the edge of shell 410 opening parts all was stuck in the draw-in groove 436, also made lid 430 difficult drop-offs.After cement and yellow ground solidified, because upper end 4331 cross-sectional areas of protrusion 433 are less than the cross-sectional area of bottom 4332, the cement that therefore solidifies can more closely be fixed column 432 with yellow ground.Barrel 434 is set, has increased the contact area of lid 430, make lid 430 more firm, difficult drop-off in the use with the bonding of cement with cement and yellow ground.
Empiecement in the present embodiment also can be called the holder handle.
Figure 13 is the kettle formula dumbbell front view in the replacement scheme of embodiment 3.Figure 14 is the kettle formula dumbbell vertical view in the replacement scheme of embodiment 3.Like Figure 13, shown in Figure 14, each empiecement 450 front is implanted with suede 413.The thickness of suede 413 is 0.6mm.Label 440 surfaces are implanted with suede 414.Suede 414 and suede 413 solid colours are pink, make dumbbell 400 integral colors consistent, echo each other, and is more attractive in appearance.The thickness of suede 414 is 0.65mm.
Its production method is: at first utilize the injection molding material injection mo(u)lding to be empiecement 450, again at its front surface coated adhesive.Utilize the electrostatic spinning method that suede is planted in empiecement 450 fronts.Adhesive with the suede secure adhesion in empiecement 450 fronts.After flocking is accomplished, empiecement 450 is positioned over appointed positions in the blow mold, polyvinyl chloride blowing material is positioned over blow molding is a shell 410 in the blow mold.
Embodiment 4
Figure 15 is the dumbbell front view among the embodiment 4.Shown in figure 14, the difference of itself and embodiment 3 is that the grip part of handle 412 along the circumferential direction is set with the empiecement (not shown).Empiecement is around being arranged on the handle 412.The empiecement surface is covered with suede 413.All the other structures are identical with embodiment 3.
Embodiment 5
Shown in Figure 16-17; The blowing kettle-bell of present embodiment comprises kettle-bell body 100 and handle body 200; Handle body 200 comprises handle body crossbeam 200a and handle body bend 200b; And holder handle 300 is a laminated structure of coincideing with handle body crossbeam 200a shape, can reach the effect that on kettle-bell, forms the different colours piece with this.In such cases, holder handle 300 is exactly the structure of the crossbeam of a near linear shape in fact, and holder handle 300 is exactly a holder handle crossbeam.
Embodiment 6
Shown in Figure 18-19; The blowing kettle-bell of present embodiment comprises kettle-bell body 100 and handle body 200; Handle body 200 comprises handle body crossbeam 200a and handle body bend 200b; And holder handle 300 is a laminated structure of coincideing with handle body bend 200b shape, can reach the effect that on kettle-bell, forms the different colours piece with this.In such cases, holder handle 300 is exactly the laminated structure of a bending in fact, that is to say, holder handle 300 is exactly to hold in the palm the handle bend.
Embodiment 7
Shown in Figure 20-21; The blowing kettle-bell of present embodiment comprises kettle-bell body 100 and handle body 200; Handle body 200 comprises handle body crossbeam 200a and handle body bend 200b; And the shape of holder handle 300 is laminated structures of coincideing with handle body 200 shapes, can reach the effect that on kettle-bell, forms the different colours piece with this.
Embodiment 8
Shown in Figure 22-25, be respectively stereogram, front view and the side view of the blowing kettle-bell holder handle of the utility model.This blowing kettle-bell holder handle comprises holder handle crossbeam 300a and holder handle bend 300b, on the inner surface of inner surface that holds in the palm the handle crossbeam and holder handle bend, all is distributed with a plurality of ridges 301.These ridges are spherical salient point.In other embodiments, the shape of salient point also can be box-shaped or taper.
When making holder handle, because produced this a few salient points 301 on the holder handle inner surface, thus can eliminate the internal stress in the making of holder handle, thus though can guarantee to hold in the palm the handle surface to have flexibility, can also make ask handle to make smooth smooth.In addition, after holder handle 300 was made, needs and handle body 200 combined to be integrally formed.Because both are materials such as plastics by material; So in both are combined into one process; At first be the handle body temperature when higher handle body be softening state; To ask handle 300 inner surfaces (surface that promptly has salient point) to fit on the handle body then, and ask the salient point 301 on handle 300 inner surfaces just can be embedded in the handle body 200 like this.When treating that then handle body 200 temperature reduce gradually cooling curing, just can be with salient point 301 wrapping tightly, thus play the effect of further fixing holder handle, even make that at whole kettle-bell holder handle 300 can not come off or ftracture yet when eminence drops.
Salient point in the present embodiment is arranged evenly along the horizontal direction equal intervals of holder handle crossbeam, to reach the even stressed fixing effect of each point on the holder handle.In other embodiments, salient point also can adopt the distribution of unequal-interval, as long as reach the effect that fixedly secures the holder handle.
In addition; On upper edge of holding in the palm handle and/or lower edge, also can be distributed with a plurality of ridges; Such as the columniform burr 302 in the present embodiment, these burrs 302 are equidistantly arranged evenly along the upper edge or the lower edge of holder handle, and burr 302 is bent to inner surface one lateral bending of holder handle.Only show on the holder handle lower edge jagged 302 situation among Figure 20-22.The effect of these burrs 302 is the same with aforesaid salient point 301, exactly in order to be embedded in the handle body 200, further to fix the holder handle.
For reach better fixed effect and and handle body between the littler difficult quilt in slit perceive, the art end place of holder handle bend 300b also can be distributed with a plurality of ridges, such as adopting aforesaid columniform burr 302.
Embodiment 9
Shown in figure 26, the difference of present embodiment and embodiment 5 is: only on holder handle crossbeam 300a, be distributed with salient point 301 in the present embodiment, on holder handle bend 300b, do not have salient point.Certainly, as a same reason, also can only on holder handle bend 300b, form salient point.The distribution of burr 302 also is the same, also can only perhaps only be provided with at holder handle bend at holder handle crossbeam.Remainder is identical with embodiment 5, does not do at this and gives unnecessary details.
Embodiment 10
Shown in figure 26, the difference of present embodiment and embodiment 5 is: the ridge in the present embodiment on the holder handle inner surface does not adopt salient point, but has adopted the projection 303 of bar shaped.Remainder is identical with embodiment 5, does not do at this and gives unnecessary details.
Embodiment in the utility model only is used for the utility model is described, and does not constitute the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in the utility model protection domain.
Claims (16)
1. dumbbell comprises the mass of filling in shell and the shell, it is characterized in that described shell is inlaid with empiecement, and said empiecement is provided with projection, and described projection is arranged at the empiecement back side or empiecement edge; Said projection inserts in the shell.
2. dumbbell according to claim 1 is characterized in that, said empiecement color and color of shell are inequality.
3. dumbbell according to claim 1 and 2 is characterized in that, described empiecement is a moulding.
4. dumbbell according to claim 1 is characterized in that, said empiecement front is implanted with suede.
5. dumbbell according to claim 1 is characterized in that, described empiecement number is more than two, and plural empiecement symmetry is embedded on the shell.
6. dumbbell according to claim 1 is characterized in that the empiecement back side has groove.
7. dumbbell according to claim 1 is characterized in that described shell is provided with storage tank, and described empiecement is embedded in the storage tank.
8. dumbbell according to claim 1 is characterized in that, the height that is arranged at the projection at the empiecement back side is 1/2nd to 1.5 times of outer casing thickness.
9. dumbbell according to claim 1 is characterized in that, described dumbbell comprises the dumbbell of kettle-bell and two dumbbell head structures.
10. dumbbell according to claim 1 is characterized in that, described shell is the integral structure of blow molding.
11. dumbbell according to claim 1 is characterized in that, said shell is provided with opening, and described opening part is provided with lid, and lid is sealed opening.
12. blowing kettle-bell holder handle; The handle body of this blowing kettle-bell comprises handle body crossbeam and handle body bend; It is characterized in that; This holder handle is holder handle crossbeam, holder handle bend or the holder handle crossbeam that is formed in one and holder handle bend, this holder handle be with corresponding handle body crossbeam, handle body bend or with the identical shape of whole handle body.
13. blowing kettle-bell holder handle according to claim 12 is characterized in that, on the inner surface of the inner surface of said holder handle crossbeam and/or holder handle bend, is distributed with a plurality of ridges.
14. blowing kettle-bell holder handle according to claim 12 is characterized in that, is distributed with a plurality of ridges on the upper edge of said holder handle and/or the lower edge.
15. blowing kettle-bell holder handle according to claim 12 is characterized in that the end of said holder handle bend is distributed with a plurality of ridges.
16. a blowing kettle-bell, it comprises handle, and said handle comprises leader's body, it is characterized in that, this blowing kettle-bell also comprises each described holder handle of claim 12-15, said holder handle and said handle body is affixed is integral.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220059977 CN202569291U (en) | 2011-12-07 | 2012-02-22 | Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120506029.9 | 2011-12-07 | ||
| CN201110403837.7 | 2011-12-07 | ||
| CN201120506029 | 2011-12-07 | ||
| CN201110403837 | 2011-12-07 | ||
| CN 201220059977 CN202569291U (en) | 2011-12-07 | 2012-02-22 | Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell |
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| CN202569291U true CN202569291U (en) | 2012-12-05 |
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| CN 201220059977 Expired - Fee Related CN202569291U (en) | 2011-12-07 | 2012-02-22 | Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell |
| CN2012100411442A Pending CN102641572A (en) | 2011-12-07 | 2012-02-22 | Dumbbell, manufacturing method of dumbbell, blow-molded kettle-bell supporting handle and blow-molded kettle-bell |
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| CN2012100411442A Pending CN102641572A (en) | 2011-12-07 | 2012-02-22 | Dumbbell, manufacturing method of dumbbell, blow-molded kettle-bell supporting handle and blow-molded kettle-bell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102641572A (en) * | 2011-12-07 | 2012-08-22 | 南通力神国际贸易有限公司 | Dumbbell, manufacturing method of dumbbell, blow-molded kettle-bell supporting handle and blow-molded kettle-bell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115322536B (en) * | 2022-10-14 | 2023-03-17 | 宿迁楚霸体育器械有限公司 | Composite material for preparing dumbbell and preparation process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2258413Y (en) * | 1996-03-05 | 1997-07-30 | 宋智勇 | Iron core dumbbell with flannel decoration surface |
| CN102189256A (en) * | 2011-04-11 | 2011-09-21 | 恒润国际贸易(天津)有限公司 | Process for manufacturing dumbbell and barbell products |
| CN202569291U (en) * | 2011-12-07 | 2012-12-05 | 南通力神国际贸易有限公司 | Dumbbell, blow molding kettle-bell holder handle and blow molding kettle-bell |
-
2012
- 2012-02-22 CN CN 201220059977 patent/CN202569291U/en not_active Expired - Fee Related
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| CN102641572A (en) * | 2011-12-07 | 2012-08-22 | 南通力神国际贸易有限公司 | Dumbbell, manufacturing method of dumbbell, blow-molded kettle-bell supporting handle and blow-molded kettle-bell |
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Granted publication date: 20121205 Termination date: 20170222 |