CN103230670A - Ping-pong ball drop point accurately practicing and ball collecting net rack - Google Patents
Ping-pong ball drop point accurately practicing and ball collecting net rack Download PDFInfo
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- CN103230670A CN103230670A CN2013101530231A CN201310153023A CN103230670A CN 103230670 A CN103230670 A CN 103230670A CN 2013101530231 A CN2013101530231 A CN 2013101530231A CN 201310153023 A CN201310153023 A CN 201310153023A CN 103230670 A CN103230670 A CN 103230670A
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Abstract
The invention provides a ping-pong ball drop point accurately practicing and ball collecting net rack and belongs to the field of sports auxiliary appliances. A position adjustable connection pairs (6, 14 and 28), an electric motor (33) and a long rod (31) are added on a rack body of the ping-pong ball collecting net rack to be connected with a ping-pong ball panel (7) capable of rebounding. A ball collecting net can be divided into sub nets (2, 12, 13, 17 and 25) according to positions and is kept from the adjacent rack body for a distance (S) which is not smaller than ping-pong ball blocking displacement distance, a flexible material is covered on an attainable rigid non-rebound face of a coming ball, the rack body can be also formed by combining hinge hook hanging rods, and rolling wheels (11) are arranged under the rack body. The ball collecting net can be dismantled and combined diversely and collects escaping ping-pong balls from different positions, the panel rebounds the ping-pong balls to a table of an opposite player from side faces of the rack body and corresponding positions in a table tennis table on self side at different angles in a dynamic-changing mode, a user can perform continuous and accurate drop point practice, functions of the ball collecting net are increased, and the training and using efficiency is improved. An occupied space for device storage can be decreased. The ping-pong ball drop point accurately practicing and ball collecting net rack is exquisite in structure and simple and convenient to manufacture.
Description
Technical field
The invention belongs to sports equipment, relate generally to the auxiliary equipment of table tennis exercise, be specially the architecture advances that has the accurate exerciser of collection ball function table tennis drop point.
Background technology
Be known in the table tennis, drop point is an important techniques index, so drop point precisely is the important content in the table tennis exercise.The billiard table surface is divided into the zone of different range and position, is aided with the quantitative statistics analysis to each regional table tennis drop point, can specifically reflect the accurate degree of corresponding table tennis drop point and control ability, and train accurately for the table tennis drop point appointed condition is provided.Only in this kind equipment, have to identify with the simple zoning of table top, be aided with the actual conditions that the instant interpretation counting of user just can obtain the accurate degree of table tennis drop point; The impression of laying in the table top relevant position and sensing equipment are also arranged, means such as computer data processing in addition, the special equipment scheme that automaticity is higher.Respectively with different separately cost drop into, different service condition and performance, with the different degree of compatibility of general table tennis table, under the participating in directly of training mate or support staff, reach the purpose of precisely training for drop point.
Substituting the device of adversary's return of serve with the bounce-back form, is to simplify sportsman, the especially sports fan that rattles, a kind of facility that carries out basic training technique drill or self amusement, exercise.As long as be equipped with such device, the practitioner can not have training mate, on-the-spot adversary not or do not have under adversary's the situation, also can carry out basic training, exercise or for one's own enjoyment, the interest of practise efficient for the user improves, realize single exercise, the raising exercise being trained creates conditions.
But when having above-mentioned superiority separately, also there is some deficiency in the equipment of such class design.As single the concentrating of simple return of serve plate return of serve drop point, the angle of setting is fixing, is difficult to adapt to the actual needs of motion.Except the athleticism training, can one-object-many-purposes, be fit to multi-purpose grillage, but because the restriction of structure, the movement environment of itself and actual table tennis table differs far away, the kind of the return of serve that produces is still single unavoidably, and its major function that is used for table tennis exercise or amusement is restricted.
Ball-collecting net is to collect the table tennis that is scattered and overflows, and is the consumption that the user improves exercise efficient, the non-practice periods of minimizing and muscle power, the equipment that welcome by the user.But the scope that present ball-collecting net is collected is smaller, and the efficient of collection is low, and the ratio of failing to enter ball-collecting net is higher, and it is very unobvious that the effect of collection embodies, and also needs more auxiliary manpower to remove to finish the table tennis that is scattered in outside the ball-collecting net.
Summary of the invention
The purpose of this invention is to provide and to carry out the table tennis drop point and precisely practise, again can greater efficiency collect the table tennis drop point of effusion table tennis in the motion and precisely practise the ball-collecting net frame; The technical issues that need to address are to propose the technical scheme that this type of table tennis drop point is precisely practised the ball-collecting net shelf structure.
Particular content of the present invention is that the table tennis drop point is precisely practised the support body that the ball-collecting net frame comprises the support set net, links, is located at not ipsilateral, the ball-collecting net that can stop collection effusion table tennis and the coupling components of above-mentioned parts with support body.Wherein, before the suitable above ball-collecting net of table tennis table table top, be provided with support body link, the orientation can be in harmonious proportion the panel of table tennis of can rebounding.
Like this, the ball-collecting net that is supported by support body can be collected the table tennis of effusion; The panel of direction-adjustable can than the panel of small size, be available for users to carry out accurate drop point exercise setting position bounce-back ball.Panel direction position is adjustable, be placed in the above local location of the suitable table tennis table table top of support body, has adapted to the exercise requirement of user to accurate drop point different distributions zone; Being positioned at before this segment set net, is to guarantee that panel was namely rebounded by panel before ball is blocked by ball-collecting net, and panel this moment ball-collecting net on every side still can stop the table tennis that does not hit panel and effusion.And, equipment scheme does not directly change the structure of table tennis table itself, can not influence the use of table tennis table, makes scheme when realizing collecting obstruction effusion table tennis, can also the single exercise that utilizes present device to carry out the accurate ability of table tennis drop point, thus realized purpose of the present invention; Set up the scheme that the position is adjustable, can rebound spherical plate at support body, solved the ball-collecting net architecture advances, increased the technical problem of functions of the equipments.
Two sliding pairs that panel of the present invention is perpendicular to one another through the direction of motion, or orthogonal two connections of position adjustments direction are secondary, link with support body.Composite slide pair or compound connection pair can make the panel that links with it, change the position that panel is laid in glide direction or adjusting direction place in-plane, provide appointed condition for the user practises training the accurate drop point of optional position.
Panel of the present invention with contain universal joint, hinge axes vertical and two the hinged pairs or the ball-joint pair that link mutually connecting of support body; Or containing the rotating shaft that is located at back side of panel, axis runout panel rebound surface normal direction, this bias is fixed or is adjustable, the motor that links with the rotating shaft transmission; Or contain the rotating shaft that is located at back side of panel, axis runout panel rebound surface normal direction, this bias is fixed or is adjustable, the motor that links with the rotating shaft transmission, the universal joint that links with motor, hinge axes be vertical and two the hinged pairs or the ball-joint pair that link mutually.
Universal joint, hinge axes be vertical and the compound hinged pair or the ball-joint pair that link and form mutually, the dimensional orientation of the panel that links is with it changed, so as to changing the direction of panel rebound, make by the accurate panel that hits of drop point of success, can also be adjusted to this table tennis opponent's court or bounce-back orientation to the opponent's court specific region that rebounds; The appointed condition of continue exercise and training is provided for the accurate drop point exercise of success.
The panel turning cylinder departs from the normal direction of panel rebound surface, and the orientation of panel rebound surface is changed with rotation; When motor rotated, the direction of panel rebound can change thereupon, had increased use equipment and had carried out the difficulty that success is again practised.The variation of rotating shaft and the bias of panel rebound surface normal direction can influence the amplitude of panel bounce-back direction dynamic change, can change to provide the difference exercise difficulty of bounce-back direction in changing.
The motor that drives the panel rotation is joined with universal joint, hinge axes mutual hinged pair or ball-joint parafacies vertical and that link, then can regulate moving even part position and satisfy the dynamic change panel with the rebound orientation requirement of opponent's court or billiard table appointed area of ball, improve panel success rate correct or that accurately rebound, make the user after finishing accurate exercise, the difficulty of successfully hitting panel again further improves.
The above-mentioned described universal joint of panel, hinged pair or the ball-joint pair of connecting by different way, also can be again with described sliding pair or connect the parafacies connection, then making the described exercise of successfully hitting again that is enhanced or connect the pair place of being placed at described sliding pair realizes, namely all can continue again and precisely hit the exercise of panel in the most positions in the equipment support body.
But ball-collecting net opsition dependent of the present invention is split as the different subnetting in orientation, and namely ball-collecting net comprises the just net that is hung on the maximum side of support body; Be positioned at just net under, receive and just to be netted the spacer screen that falls and receive corresponding table tennis of overflowing from billiard table after the obstruction; Be positioned at just online the place ahead, stop table tennis by just netting the top net of overflowing in the front upper place; The relevant position, both sides that is positioned at before just netting stops the side net that ball is overflowed; May extend to the limit net of flanks, collection flanks effusion table tennis; Keep removable the connection between each adjacent subnetting or between subnetting and the adjacent support body; Need to omit corresponding subnetting according to using.
The subnetting that is positioned at different azimuth can stop and collect the table tennis that corresponding site is overflowed; The just removable connection between net, top net, side net, spacer screen, the limit net, for the user according to the needs in using, configuration selectively, the respective episode net that omits neatly behind the different azimuth subnetting is provided convenience.As omitting the limit net for reserving hello ball coach position.
Ball-collecting net of the present invention must link place and the immediate vicinity thereof with support body except relations with network, and ball-collecting net keeps being not less than the distance that ball-collecting net stops maximum displacement that table tennis takes place all and between adjacent support body inner surface; The ball-collecting net appropriate section need link through connecting rope and adjacent frame body region according to fixing; All cover flexible material at support body with the support body rigid element ball non-bounce-back surface in one's power that links.
The ball-collecting net of Lian Jieing is except relations with network and the necessary connection place of support body and proximate portion thereof like this, all all keep certain distance with the support body adjacent side, the part that the ball-collecting net face need be fixed is then connected with adjacent support body place by corresponding rope, and the length of rope can guarantee the required distance of wire side and adjacent support body.The ball-collecting net that is connected and fixed so just has certain mobile space, is used for cushioning the kinergety that table tennis is blocked in absorption; The table tennis of motion state then unlikely when being blocked by net or the ball-collecting net mesh do not reach as yet block in, ejected by the column of this place's support body that ball-collecting net is pressed close to or crossbeam again immediately.Support body near the surface of billiard table ball side and with link all rigid element balls surface in one's power except panel plate face of support body, comprise the edge portion of panel, it is surperficial all to belong to non-bounce-back.This part surface does not keep reliably the blocking of ball-collecting net of described distance, and ball probably directly touches or touches after effectively blocking through non-; So must cover flexible material, with the active force of buffering flight table tennis, absorb the kinergety of table tennis, the table tennis that touches is not rebounded.
The present invention establishes respectively with support body and panel with the removable adjustable stock that connects the parafacies connection; Or establish with support body through the removable adjustable stock that connects parafacies connection, with the motor that stock fixedly links, the back depart from the panel normal, with the fixing phase yoke plate axle of panel, plate axle and electric-motor drive link; Or establish with support body through the removable adjustable stock that connects the parafacies connection, the motor that fixedly links with stock, the vertical crank that links with motor reel, hold the plate axle that links in addition with crank, the plate axle is anterior to be joined with the ball-joint parafacies in the relevant position that is positioned at motor axis with stock, and plate axle front end is vertical with panel to link; Or establish with support body through the removable adjustable stock that connects the parafacies connection, with the fixing motor that links of sliding pair of stock, crank vertical with motor reel, that link through fixing sliding pair, hold the hinged plate axle that links in addition with crank, the plate axle anterior with stock with the ball-joint parafacies join, link vertical with panel; Or establish with support body through the removable adjustable stock that connects the parafacies connection, with the fixing motor that links of sliding pair of stock, crank vertical with motor reel, that link through fixing sliding pair, hold the hinged plate axle that links in addition with crank, the plate axle anterior with stock with the ball-joint parafacies join, link vertical with panel.
Panel links through stock and support body, has increased the scope of panel installing space, changes coupled position or the orientation of stock and support body, can be under the situation of movable support body not, and the relative position of change panel.Rotine positioning that so just can be outside support body is in table tennis table, the panel that the stock front end rigion is installed stretches in this side table tennis table platform for the exercise use; Removable adjustable between panel and the stock or link through motor, plate axle and adjustment structure thereof can obtain the dynamic change in different azimuth or the orientation of panel, with exercise item and the exercise difficulty that increases the accurate drop point of user.
Support body of the present invention is divided into roller, to improve the equipment mobility energy, adapts in limited equipment yardstick, collects the needs of more multi-direction effusion ball, multi-faceted bounce-back different directions ball.Roller of the present invention makes up with above-mentioned each scheme of stock that has respectively, namely has the stock that support body is divided into roller and stock or charged motivation and rotating shaft respectively concurrently, has then increased the various ways of equipment mobility and use.
Support body of the present invention comprises the rod member that connects of being fixed, linking with it can spacing hinged pair and the connection pair that links of hook with it.Can be spacing hinged be convenient to the connection of rod member and connect after the location, also be convenient to dismounting and the assembling of equipment, can minimizing equipment storing institute take up space, for the reorganization modification of device structure is provided convenience, make the more flexible different needs that uses that adapts to expediently of equipment.
The position of support body of the present invention below ball-collecting net is provided with can collect by ball-collecting net outlet and flows out the container of table tennis and support dividing plate or the support of this container.It is collected and from the table tennis that its outlet is flowed out that container can be accepted ball-collecting net at any time like this, is convenient to that collected table tennis is offered the user and uses, and also saves the work that the user was equipped with and laid this container position separately.
The present invention has set up the panel of the ball that can rebound at the support body of table tennis ball-collecting net; Panel links with support body through the adjustable connection pair of locality; Or panel links with stock so that removable adjustable connection is secondary, or plate axle and the electric-motor drive of panel through departing from its normal or adjustable connection angle links, motor fixedly links with stock, linked through removable adjustable connection pair and support body by stock again; Support body is divided into roller; Except must connect with support body and proximate portion, between the adjacent medial surface of ball-collecting net and support body, keep being not less than the distance that ball-collecting net stops table tennis maximum displacement that corresponding wire side takes place, support body and join panel fixed part ball non-rebound surface in one's power and all cover flexible material; Removable just net, side net, spacer screen, top net and the limit net that is divided into mutual removable connection of ball-collecting net; Support body comprises rod member and the hinged pair that links with it and the hook pair that is fixed and connects.Not only improve ball-collecting net and collected the ability of effusion table tennis, can different azimuth, the different composition, and support body has rigidity bounce-back ground and effectively collects the effusion table tennis that does not hit panel in the support body scope; The bounce-back panel that carries out accurate drop point exercise also is provided, can be within support body variant position, different azimuth, or in the mode of bounce-back direction dynamic change, the ball that successfully hits panel is rebounded to the other side appointed area, improve the accurate drop point exercise of user's table tennis and specific aim and the continuity of training, the equipment maneuverability, and the exercise of carrying out in the platform precisely through drop point can be provided by different way; The support body of hinged and hook draw bail can minimizing equipment storing institute take up space, and more flexible adaptation is used needs.The present invention realizes the accurate drop point exercise of table tennis training, and improves its service efficiency under the situation of table tennis table not being carried out any transformation of the way processing, improves training effect.Device structure exquisiteness, simple for production.
Description of drawings
Fig. 1 is the precisely structural representation of exercise four post ball-collecting net framves of table tennis drop point;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is two post ball-collecting net shelf structure schematic diagrames;
Fig. 4 is Fig. 3 A place partial enlarged drawing;
Fig. 5 is Fig. 3 vertical view;
Fig. 6 is that rack places use state diagram in the platform;
Fig. 7 is gravitational equilibrium positions of panels adjustment structure schematic diagram;
Fig. 8 is crossbearer formula positions of panels adjustment structure schematic diagram;
Fig. 9 is that the ball-collecting net frame that installs stock additional uses view;
Figure 10 departs from panel rebound surface length of normal face plate drive mechanism schematic diagram;
Figure 11 is with crank-driven stock panel construction schematic diagram;
Figure 12 is the length-adjustable stock panel of crank drive mechanism schematic diagram;
Figure 13 is that tensioned lines connects panel angular adjustment drive mechanism schematic diagram.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
The name of drawing the represented parts of numbering in figure is called: 8 axles of 1 column 2 side net 3 crossbeam 4 rope 5 secondary 7 panels of plate axle 6 ball-joints, 9 vertical frame 10 ball case 11 roller 12 spacer screens 13 just 23 platforms of hinged secondary 15 countershaft 16 connecting lever 17 limit net 18 underarm 19 peg 20 cross bar 21 upper arm 22 poles of net 14,24 table tennis table 25 top nets 26 are restricted 27 pulley 28 sliding pair 29 counterweight 30 net 31 stock 32 crossbearer 33 motor 34 support 35 shaft couplings 36 with the sliding pair 37 crank 38 adjusting rope s ball-collecting nets of set bolt and the distance of rear column rear cross beam.
First embodiment is the actual sample of precisely practising the ball-collecting net frame for the table tennis drop point, and overall dimension 2400 * 1400 * 400mm sees Fig. 1,2 and Fig. 6.
This example is with four columns 1; Lay respectively at the column middle part a little more than court 24 relevant positions and column top, the crossbeam 3 that connects column is main member; Form basic for not establishing the space frame of crossbeam in the middle part of cuboid, the maximum side, as this routine frame structure.The lower end of column fixedly links with universal rolling wheel 11 respectively.Be equivalent to the following position of table tennis table table top at support body, being shaped on top is opening, can receives by its top and fall into table tennis, contain the spacer screen 12 of side space under the opening with the horizontal cross-section of cylinder that framework is surrounded, the spacer screen bottom surface has makes the gradient that table tennis is concentrated in the spacer screen, and the spacer screen bottom surface is shaped on the outlet of deriving table tennis in the net bottom.Square bearer is provided with pan straddle and is placed in support, holds the container ball case 10 that flows out table tennis from the spacer screen outlet under spacer screen outlet.
This example be respectively equipped with in the lower and upper cross-member inboard along the chute of crossbeam length direction with become sliding pair 28 with slide block that chute is slidingly matched, with the perpendicular frame 9 of vertical crossbeam respectively with corresponding two up and down slide block fixedly link, the inboard of perpendicular frame is shaped on along the chute that erects the frame length direction, the slide block that cooperates with chute and the fixing jackscrew of slide block.Perpendicular frame slide block is inboard fixedly to link with frame axle 8 socket joints that inwardly stretch out, at the back side of the ball-joint through fixing mutual alignment between even part secondary 6 of end in addition of frame axle and panel 7 or with panel fixedly other of phase yoke plate axle 5 hold and fixedly link.
On the spacer screen upper shed, each stand column and beam of support body is by the needs that connect ball-collecting net, respectively with can stop table tennis continue the to move ahead appropriate section of ball-collecting net and link, on the secondary outer surface of front, side and plate axle, frame axle, ball-joint, the surface of panel except rebound surface of the anterior stand column and beam of support body, and all may be hit by ball but the rigid surface of the ball that is not used for rebounding all covers sponge.The ball-collecting net that ball-collecting net and front column and front beam link is from the connection place, the relevant position of inwardly leaving the inboard of column and crossbeam gradually extends back, to being that 50-80 stops in the least apart from the inner surface of rear column, rear cross beam and perpendicular frame apart from s, extend the just net that connects this example between each edge portion of termination in the side with top net, simultaneously with rope 4 as this routine angle band or sideband, ball-collecting net is positioned at each edge angle of support body frame, rim and adjacent rear side column and rear cross beam fixedly links, forms just net 13 of this routine side net 2, top net 25 and net just.It more than is the narration about this routine primary structure.
Before the use, rack is placed corresponding collection ball position, the position of selected one on demand, two or more panel and corresponding perpendicular frame, with the fixing slide block of the perpendicular frame of vertical direction of jackscrew, from the mesh of net just, side net or top net, insert with panel through the frame axle that the globular hinge pair connects, frame axle and slide block socket joint are fixedly linked; Can or there be the cooperation of certain pretension in the orientation of selected panel ball-joint with the jackscrew on the hinged pair, and selected orientation is fixed, and can come into operation.
During use, the user strives hitting set panel on request, hits to be success; If do not hit panel, then table tennis can be stopped by ball-collecting net, falls along wire side and enters spacer screen, or directly fall into spacer screen, is rolled to outlet, is collected among the container ball case under the net outlet.So far namely finish once exercise circulation, only the latter ends in failure.By regulating position, orientation and the number of panel on the ball-collecting net rack, can realize the accurate drop point of diverse location table tennis and the precisely exercise of drop point conversion.Because the column of front side, preceding, the side surface of crossbeam all cover sponge, side net, top net and just netting all with the perpendicular frame of the beam column of support body framework and keeping at a distance, can make any ball within the support body framework, except hitting panel, all stopped and collect by this routine ball-collecting net, injected within the table tennis ball case of support body bottom by the spacer screen outlet at last.
In case of necessity, can also remove spacer screen, the position that the ball-collecting net frame is pushed within the pingpong table of this routine environment for use, two heel posts splits flanks makes panel be positioned at this side billiard table platform, be on the table top, can carry out the get the short ball exercise of accurate drop point of table tennis.See Fig. 6.The table tennis of overflowing still can be collected by the ball-collecting net that just net, side net are formed.This moment, the both sides net should be set up the left and right sides spacer screen that links with it respectively, the inboard upper edge of net of each side spacer screen can be adsorbed in the pingpong table lower surface edge by magnet, or two ends are mounted on support body corresponding site and table tennis post respectively, form to be positioned at flanks and to collect the space that holds the effusion table tennis.It more than is the main operating position of this example.
This table tennis drop point is precisely practised the ball-collecting net frame, can set up the perpendicular frame of respective numbers as required, and adjusts the riding position of perpendicular frame and panel, and the user rebounds to set panel after dropping on this side billiard table with impacted table tennis again; Be used for training the accurate degree of table tennis drop point.If the angle of regulating the relative support body of panel again is to can being convenient to the user and continuing to practise the table tennis that hits panel by the panel opponent's court that rebound back, thus the use training effectiveness of raising equipment.
When not needing certain panel, except pulling down, panel can also be adjusted to vertical trailing flank or be parallel to the orientation of ball, namely can under the prerequisite that keeps panel, reduce panel to greatest extent to the influence of the bounce-back of ball.Other position that in ball-collecting net, does not have panel, block the ball-collecting net in framework, can collect most effusion tablees tennis in the use, the distance of being kept by angle band or marginal zone between net and the support body and corresponding sponge can avoid the support body of rigidity or rod member to the direct bounce-back of table tennis; They have greatly reduced user's auxiliary movement with ball-collecting net, have reduced non-effective time and physical demands.In summary, this example is the sports equipment that can be used for the accurate drop point training of table tennis and have effusion pingpong collection function concurrently.
Second embodiment is that two hinged drop points are precisely practised the ball-collecting net frame, sees the panel draw bail among Fig. 1,3 and 4.The crossbeam of these both sides, routine support body top lengthens, and therefore the part of the column of front side on middle beam also lean forward, and the side net of both sides and top web area namely increase thereupon, collects the table tennis that more multiple lateral and top are overflowed with obstruction.The straight-bar that this example is perpendicular to one another with three length directions is respectively as frame axle, countershaft 15 and plate axle, and with axis mutually vertical, can to fix two of correlation between even part hinged secondary 14, the respective end with frame axle and countershaft, countershaft and plate axle links successively respectively.Wherein the in addition end of frame axle is in the direction of vertical support body beam column medial surface, links with the vertical socket joint of slide block in the perpendicular frame chute; The free rod end of plate axle fixedly links with bar length direction vertical panel rebound surface direction and back side of panel, and the two ends of countershaft link through the end in addition of hinged pair and frame axillare axle respectively.This is another universal connecting mode, can obtain panel equally with respect to the different azimuth of support body.The connection of socket joint is convenient to the panel dismounting and is regulated separately.All the other structures and operating position and last example are consistent.
The 3rd embodiment is that the external drop point of ball-collecting net is precisely practised the ball-collecting net frame, is the distortion of going up example, sees shown in the just net 13 in Fig. 7 and 9.The ball-collecting net each several part all directly and the column of support body and the lateral surface of crossbeam directly link, except preceding and side surface, frame axle, ball-joint pair, plate axle and the panel plate edge side of former stand column and beam all covers the sponge, at column, the crossbeam of rear side, the rigid surface that other balls such as the perpendicular frame of be positioned at before netting in the support body, netting, slide block may touch all covers sponge.This routine ball-collecting net simple in structure do not have angle band and marginal zone, and the adjusting of positions of panels is not subjected to the influence of ball-collecting net, and other structure is all identical with last example with operating position.
The 4th embodiment is that simple and easy table tennis drop point is precisely practised the ball-collecting net frame, sees Fig. 3,5,6 and 8.
This example and last routine structure basically identical just omit two columns and the respective girders that go up routine support body front side.This example two column tops link with the upper arm 21 that can stretch out forward with axis and the equidirectional hinged pair of crossbeam respectively, the external part of upper arm and oblique pole 22 are hinged, the end in addition of pole can be supported on the platform 23 that protrudes the column side, can support upper arm in the duty of level, the length of upper arm and ball-collecting net frame use suitable up to the distance of table tennis playscript with stage directions side user scope of activities.Fixedly link with long cross bar 20 two ends between the two upper arm external parts with two columns distance.Position at a little higher than table tennis table table surface height of column, be provided with upper arm and connect same hinged pair with column, with underarm 18 hinged linking, the length of underarm is 2-4 times of upper arm length, the upper arm external part also articulates with the underarm stage casing through hinged peg 19 and links, can under the situation that upper arm is supported by pole, keep the level of underarm and stretch out state.
Position a little more than the table tennis table table top between two columns is provided with crossbeam, this crossbeam two ends section, be equivalent to the position in table tennis table placed in the middle sideline, be provided with the orthogonal connecting lever 16 of two parts, connecting lever joins with axis and crossbeam hinged parafacies in the same way with its galianconism and crossbeam, the length of galianconism is that crossbeam is to 2 times of the table tennis table distance, make connecting lever long-armed can be under a little less than court accordingly highly forward level stretch out, it is mutually neat that its external part and underarm stretch out the end.Be equivalent to the position of connecting lever at cross bar, be provided with an end equally and this cross bar is hinged, end articulates the long-armed stage casing of connecting lever, the peg that this long-armed maintenance level is protracted in addition.
Trailing flank at two columns and crossbeam articulates just net 13, and the both sides upper arm articulates the side net 2 that is positioned at the support body both sides, and the underarm that the stage casing of side net and level are protracted fixedly links.Both sides connecting lever long-armed and articulate respectively between the adjacent underarm separately and can seal the limit net 17 of lower space therebetween, and communicating with spacer screen, the stage casing that two connecting levers and underarm stretch out articulate support before as spacer screen.Stretch out long limit net forward and can collect the table tennis of overflowing from the table tennis table sideline.The primary structure that more than is different from above embodiment for this example.
This routine features simple structure removes when depositing that respective support articulates between the rod member, can reduce institute and take up space, and also is convenient to carrying.Other structure and operating position and above example are consistent.
The 5th embodiment is that the table tennis drop point of perpendicular frame slide block counterweight is precisely practised ball-collecting net, sees Fig. 7.
The perpendicular frame top of this example is provided with the wheel carrier that fixedly links with it, and wheel carrier is that hinged pair and the pulley 27 of side, parallel perpendicular frame place horizontal direction links with jointed shaft.Sliding rope 26 connects slide block and upwards walks around pulley, with under the pulley, be positioned at behind the support body or counterweight 29 outside the lateral surface links, the weight of counterweight and slide block, the hinged pair that connects panel and axle, and the weight sum of panel equates that the length of sliding rope is slightly larger than the length of perpendicular frame.The sliding pair that between perpendicular frame and crossbeam with the direction is crossbeam length links.
As above connect after the assembling, owing to being equal in weight of pulley both sides, slide block panel and counterweight namely keep poised state.When needs adjusting slider position, any side of user's mobile counterweight or panel is to the position that needs, and this poised state all can continue to keep in this position; Join the use of sliding pair between same and crossbeam, panel can be placed in any position of this side and use for the user.This routine structure is used more convenient.
The 6th embodiment is that the drop point that crossbearer formula positions of panels is regulated is precisely practised the ball-collecting net frame, sees Fig. 8.Each side at support body, the level of being respectively equipped with is laid, a plurality of crossbearers 32 of spacing equalization, having at crossbearer can be along the slide block of crossbearer length direction slip, the inboard frame bearing with the vertical slipper medial surface of slide block is inserted and is linked, frame axle end in addition links with axis hinged pair and the countershaft consistent with the frame axis, the in addition end of countershaft links through the secondary panel with the table tennis that can rebound of globular hinge, and hinged and globular hinge is secondary all to have relative position fixed part between even part, the length of countershaft to be equivalent to cross bar spacing half.
Like this, reasonably combined between cross bar quantity and the shaft length set up in the restriction that concerns between a shaft length and the cross bar spacing.The slide block of slippage on the crossbearer and length be between crossbearer spacing half, the countershaft hinged with the frame axle, can guarantee that panel appears at any position of crossbearer both sides half pitch scope; Change different crossbearers, then in this side, realize the adjusting of positions of panels gross area; Globular hinge between countershaft and panel can be regulated the bounce-back orientation of panel comprehensively.Namely obtain the adjusting of gross area, comprehensive bounce-back.Cooperate with the globular hinge parafacies again, can make panel on table, collect scope that the ball-collecting rack body controls, with needed direction bounce-back ball.Other structure of this example and operating position all are consistent with above each example.
The 7th embodiment is that the drop point that adds stock is precisely practised the ball-collecting net frame, sees the stock of Fig. 9.This example is set up length and can be extend into the interior stock 31 of 30 side billiard tables of use state net on support body top two crossbeams or crossbeam and cross bar, stock front end installation panel, and stock and crossbeam, cross bar activity link.Under the situation of movable support body not, can in this side billiard table platform, lay panel in the relevant position by the stock that sets up; By changing connecting between stock and the support body, can regulate the diverse location of the relative support body of panel, adapt in table tennis table the precisely needs of drop point exercise.
The 8th embodiment installs motor 33 at the stock front end rigion, and the plate axle that drives coaxial but axis runout panel rebound surface normal with it, links with revolute pair and stock through shaft coupling 35 by motor, in the hope of behind motor start-up, the panel orientation can be with the change of the rotation generating period of motor, the also generating period variation thereupon of winding up the case a little of panel bounce-back table tennis, the exercise increase difficulty of hitting panel again for the user.See Figure 10.
The 9th embodiment is that the motor installed of stock can also link the position of the corresponding motor axis in the contiguous panel place of plate axle, the ball-joint pair that setting and stock and plate axle link respectively, plate axle vertical panel rebound surface through crank 37 with the plate axle of crank oblique.Crank makes the plate axle that links with it with the variation in the rotation generation orientation of motor, the variation that brings the panel orientation.See Figure 11.
The tenth embodiment sees Figure 12, is to make along the axially extended chute of motor in motor and stock connection place, along the position that chute is laid, forms the sliding pair 36 that has set bolt by the bolting motor; To change the connection of motor on stock.In crank and motor connection place, the slide block that making and settlement can be slided along the crank length direction, and fixedly slide block and the bolt of chute relative position, slide block and motor reel link; To change the active length of crank.Plate axle front end rigion links with stock through the ball-joint pair, and plate shaft rear end and crank far-end join through hinged parafacies.Crank and motor two places regulate to unite and carry out, and the orientation of plate axle is changed, so as to changing the plate axle amplitude that the orientation changes when rotating with motor.
The 11 embodiment sees Figure 13, being that plate axle and panel are hinged links, in the plane of the vertical jointed shaft in plate axle place, be provided with and be positioned at the connecting rod that plate axle both sides, the adjusting rope 38 that links with plate axle and panel respectively or length can change, the distribution of length can change the hinged mutual alignment that links of panel and plate axle between the tensioning length of adjusting both sides rope or two connecting rods.The plate axle is coaxial with motor reel, link with revolute pair in motor axis relevant position and stock, and links through shaft coupling and electric-motor drive, and motor is fixed on the stock front end rigion.Tensioning is regulated rope or is regulated stationary links, connecting relation between panel and the plate axle is fixed, change the length of both sides connecting rod or rope tensioning, can change between panel and the plate axle connecting relation, namely change the orientation of panel, the amplitude of change panel dynamic change, bring influence to use.
The the 8th to the 11 example, the different schemes that increases motor of narrating, the variation that all can bring stock end panel bounce-back direction, or and then change the amplitude that changes, increase the difficulty of user's exercise and the variation of difficulty, brought more abundant content for the use of equipment.These embodiment equipment other structure and operating position still be consistent with above embodiment.
Claims (10)
1. the table tennis drop point is precisely practised the ball-collecting net frame, comprises the support body of support set net, links, is located at support body not ipsilateral, the ball-collecting net that can stop collection effusion table tennis and the coupling components of above-mentioned parts with support body; It is characterized in that: before the suitable above ball-collecting net of table tennis table table top, be provided with support body link, the orientation can be in harmonious proportion the panel (7) of table tennis of can rebounding.
2. the table tennis drop point is precisely practised the ball-collecting net frame according to claim 1, it is characterized in that: two sliding pairs (28) that described panel is perpendicular to one another through the direction of motion, or orthogonal two connections of position adjustments direction are secondary, link with support body.
3. the table tennis drop point is precisely practised the ball-collecting net frame as claimed in claim 1 or 2, it is characterized in that: described panel with contain universal joint, ball-joint pair (6) or orthogonal two the hinged pairs of hinge axes (14) connecting of support body; Or contain the plate axle (5) that is located at back side of panel, axis runout panel rebound surface normal direction, the motor (33) that links with plate through-drive; Or contain the plate axle that is located at back side of panel, axis runout panel rebound surface normal direction, and the motor that links with the plate axle, the universal joint that links with motor, hinge axes be vertical and two the hinged pairs or the ball-joint pair that link mutually.
4. the table tennis drop point is precisely practised the ball-collecting net frame as claimed in claim 1 or 2, it is characterized in that: but described ball-collecting net opsition dependent is split as the different subnetting in orientation, and namely ball-collecting net comprises the just net (13) that is hung on the maximum side of support body; Be positioned at just net under, receive and just to be netted the spacer screen (12) that falls and receive corresponding table tennis from the out-of-bounds of billiard table base or effusion after the obstruction; Be positioned at just online the place ahead, stop table tennis by just netting the top net of overflowing in the front upper place (25); Stop the side net (2) that ball is overflowed with the relevant position, both sides that is positioned at before just netting; May extend to the limit net (17) of flanks, collection flanks effusion table tennis; Keep removable the connection between each adjacent subnetting or between subnetting and the adjacent support body;
Or and the inboard adjacently situated surfaces of support body between, except the ball-collecting net relations with network must connect support body place and proximate portion thereof, the distance (S) of maximum displacement took place when keeping being not less than ball-collecting net and stopping table tennis; At ball support body and all cover flexible material with the link non-bounce-back surface of rigid element of support body in one's power;
Or have above-mentioned two parts concurrently, namely ball-collecting net is split as the different subnetting in orientation according to the position, keeps removable the connection between each adjacent subnetting or between subnetting and the adjacent support body; Ball-collecting net except must the connection place and proximate portion, all keep the described distance (S) with the adjacent frame surface, the ball-collecting net appropriate section link through connecting rope and adjacent frame body region according to needing; At ball support body and all cover flexible material with the link non-bounce-back surface of rigid element of support body in one's power.
5. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 3, it is characterized in that: but the described ball-collecting net opsition dependent of described ball-collecting net is split as the different subnetting in orientation, and namely ball-collecting net comprises the just net (13) that is hung on the maximum side of support body; Be positioned at just net under, receive and just to be netted the spacer screen (12) that falls and receive corresponding table tennis from the out-of-bounds of billiard table base or effusion after the obstruction; Be positioned at just online the place ahead, stop table tennis by just netting the top net of overflowing in the front upper place (25); Stop the side net (2) that ball is overflowed with the relevant position, both sides that is positioned at before just netting; May extend to the limit net (17) of flanks, collection flanks effusion table tennis; Keep removable the connection between each adjacent subnetting or between subnetting and the adjacent support body;
Or and the inboard adjacently situated surfaces of support body between, except the ball-collecting net relations with network must connect support body place and proximate portion thereof, the distance (S) of maximum displacement took place when keeping being not less than ball-collecting net and stopping table tennis; At ball support body and all cover flexible material with the link non-bounce-back surface of rigid element of support body in one's power;
Or have above-mentioned two parts concurrently, namely ball-collecting net is split as the different subnetting in orientation according to the position, keeps removable connection between each adjacent subnetting; Ball-collecting net except must the connection place and proximate portion, all keep the described distance (S) with the adjacent frame surface, the ball-collecting net appropriate section link through connecting rope and adjacent frame body region according to needing; At ball support body and all cover flexible material with the link non-bounce-back surface of rigid element of support body in one's power.
6. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 1,2 or 5, it is characterized in that: establish respectively with support body and panel (7) with the removable adjustable stock (31) that connects the parafacies connection;
Or establish with support body through the removable adjustable stock (31) that connects parafacies connection, with the motor (33) that stock fixedly links, panel normal, and the plate axle (5) that fixedly links of panel are departed from the back, and plate axle and electric-motor drive link;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, the motor that fixedly links with stock, the vertical crank that links with motor reel (37), hold the plate axle (5) that links in addition with crank, plate axle front portion links in the motor axis relevant position through ball-joint pair (6) and stock, and plate axle front end is vertical with panel to link;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, with the fixing motor (33) that links of sliding pair (36) of stock, crank (37) vertical with motor reel, that link through fixing sliding pair (36), hold the hinged plate axle (5) that links in addition with crank, the plate axle anterior with stock with ball-joint pair (6) link, with vertical the linking of panel (7);
Or support body is divided into roller (11);
Or above-mentionedly contain each scheme of stock (31) is divided into roller (11) scheme respectively with support body combination.
7. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 3, it is characterized in that: establish respectively with support body and panel (7) with the removable adjustable stock (31) that connects the parafacies connection;
Or establish with support body through the removable adjustable stock (31) that connects parafacies connection, with the motor (33) that stock fixedly links, depart from the panel (7) that panel normal plate axle (5) and electric-motor drive link through the back;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, the motor that fixedly links with stock, the vertical crank that links with motor reel (37), hold the plate axle (5) that links in addition with crank, plate axle front portion links through ball-joint pair (6) and stock, and panel (7) links with the plate axle is vertical;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, with the fixing motor (33) that links of sliding pair (36) of stock, crank (37) vertical with motor reel, that link through fixing sliding pair (36), hold the hinged plate axle (5) that links in addition with crank, the plate axle anterior with stock with ball-joint pair (6) link, with vertical the linking of panel (7);
Or support body is divided into roller (11);
Or above-mentionedly contain each scheme of stock (31) is divided into roller (11) scheme respectively with support body combination.
8. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 4, it is characterized in that: establish respectively with support body and panel (7) with the removable adjustable stock (31) that connects the parafacies connection;
Or establish with support body through the removable adjustable stock (31) that connects parafacies connection, with the motor (33) that stock fixedly links, depart from the panel (7) that panel normal plate axle (5) and electric-motor drive link through the back;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, the motor that fixedly links with stock, the vertical crank that links with motor reel (37), hold the plate axle (5) that links in addition with crank, plate axle front portion links through ball-joint pair (6) and stock, and panel (7) links with the plate axle is vertical;
Or establish with support body through the removable adjustable stock (31) that connects the parafacies connection, with the fixing motor (33) that links of sliding pair (36) of stock, crank (37) vertical with motor reel, that link through fixing sliding pair (36), hold the hinged plate axle (5) that links in addition with crank, the plate axle anterior with stock with ball-joint pair (6) link, with vertical the linking of panel (7);
Or support body is divided into roller (11);
Or above-mentionedly contain each scheme of stock (31) is divided into roller (11) scheme respectively with support body combination.
9. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 1,2,5,7 or 8, it is characterized in that: described support body comprises hinged pair (14,23) that can be spacing, the connection pair of hook, through can spacing hinged pair and hook connect the secondary rod member (16,18,19,20,21,22) that is fixedly connected;
Or the position below ball-collecting net, establish can collect by the ball-collecting net outlet and flow out the ball case (10) of table tennis and dividing plate or the support of support vessels.
10. precisely practise the ball-collecting net frame as table tennis drop point as described in the claim 6, it is characterized in that: described support body comprise can be spacing hinged pair (14,23), hook connect, through can spacing hinged pair and hook connect the secondary rod member (16,18,19,20,21,22) that is fixedly connected;
Or the position below ball-collecting net, establish can collect by the ball-collecting net outlet and flow out the ball case (10) of table tennis and dividing plate or the support of support vessels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101530231A CN103230670A (en) | 2013-04-28 | 2013-04-28 | Ping-pong ball drop point accurately practicing and ball collecting net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101530231A CN103230670A (en) | 2013-04-28 | 2013-04-28 | Ping-pong ball drop point accurately practicing and ball collecting net rack |
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| Publication Number | Publication Date |
|---|---|
| CN103230670A true CN103230670A (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101530231A Pending CN103230670A (en) | 2013-04-28 | 2013-04-28 | Ping-pong ball drop point accurately practicing and ball collecting net rack |
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| CN (1) | CN103230670A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908770A (en) * | 2014-03-28 | 2014-07-09 | 沈阳师范大学 | Ping pong ball flying drop point control device |
| CN108211278A (en) * | 2018-03-23 | 2018-06-29 | 安吉县良朋文体用品厂 | A kind of sphere collection device |
| CN113730890A (en) * | 2021-08-19 | 2021-12-03 | 湖南星海运动用品有限公司 | Two-sided football bounce-back training system |
| CN114392535A (en) * | 2022-01-25 | 2022-04-26 | 南阳师范学院 | Recovery system and recovery method for basketball shooting training |
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| CN87200067U (en) * | 1987-01-08 | 1987-10-21 | 吴宏 | Divided area collection table with net for table tennis placement exercise and test |
| US20070049430A1 (en) * | 2005-08-25 | 2007-03-01 | Hatfalvi Steven B | Tennis table and a net structure therefor |
| US8157677B1 (en) * | 2011-07-26 | 2012-04-17 | Samuel Chen | Table tennis caddy |
| CN202476877U (en) * | 2012-01-10 | 2012-10-10 | 黑龙江工程学院 | Table tennis table |
| CN103007509A (en) * | 2012-10-22 | 2013-04-03 | 郭运 | Ping-pong ball-returning board and usage method thereof |
| CN203208636U (en) * | 2013-04-28 | 2013-09-25 | 郭运 | Table tennis ball placement accurate practice ball-collecting net rack |
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| CN87200067U (en) * | 1987-01-08 | 1987-10-21 | 吴宏 | Divided area collection table with net for table tennis placement exercise and test |
| US20070049430A1 (en) * | 2005-08-25 | 2007-03-01 | Hatfalvi Steven B | Tennis table and a net structure therefor |
| US8157677B1 (en) * | 2011-07-26 | 2012-04-17 | Samuel Chen | Table tennis caddy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103908770A (en) * | 2014-03-28 | 2014-07-09 | 沈阳师范大学 | Ping pong ball flying drop point control device |
| CN108211278A (en) * | 2018-03-23 | 2018-06-29 | 安吉县良朋文体用品厂 | A kind of sphere collection device |
| CN113730890A (en) * | 2021-08-19 | 2021-12-03 | 湖南星海运动用品有限公司 | Two-sided football bounce-back training system |
| CN114392535A (en) * | 2022-01-25 | 2022-04-26 | 南阳师范学院 | Recovery system and recovery method for basketball shooting training |
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Application publication date: 20130807 |