CN105080095B

CN105080095B - Tennis net braces assembly

Info

Publication number: CN105080095B
Application number: CN201510488902.9A
Authority: CN
Inventors: 徐敏旺
Original assignee: Individual
Current assignee: Xuzhou Lelai Construction Machinery Co Ltd
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2017-10-13
Anticipated expiration: 2035-08-11
Also published as: CN105080095A

Abstract

The invention discloses a kind of tennis net braces assembly, it belongs to sports apparatus field, and it is moved easily and adjusted.It includes net, hack lever, ballast box, device has four Load-bearing box wheels under the ballast box, each case wheel has a wedge-shaped voussoir under its side wheel face towards net direction, it is fixedly connected between voussoir by I-shaped tapered bar, tapered bar passes through two sleeve pipes for being fixed on ballast box bottom to be flexibly connected with it by the bar in the middle of it, to the bar upper sleeve through between the outer side pole of tapered bar there is a helical spring in the outer end of the sleeve pipe of outside, the inner end bar of tapered bar protrudes from the inner edge line of ballast box inwards, the tapered bar lower edge also at two sleeve pipe left end positions is each provided with a round and smooth projection simultaneously；One wishbone, which is passed down through, to be installed on the fork arm pipe of the inboard facade of ballast box and is flexibly connected with it, the divergent ends of fork arm are in lower end and inclined-plane oblique surface machining inwards is all made and non homogeneity end face in termination, and the lower end of fork arm also touches the lateral surface of the inner end bar of the I-shaped tapered bar under it.

Description

Tennis net braces assembly

Technical field

The invention belongs to sports apparatus field, specifically refer to total for the tennis net braces of the sports centers such as tennis or shuttlecock Into.

Background technology

The motion such as tennis or shuttlecock is a kind of ball game mode that people like, is needed in this kind of sports center Device net is separately poised for battle the zone of action of both sides to wait, while intercepting undesirable ball；Net by both sides hack lever branch Support, hack lever is then fixed to be embedded to underground or is connected by mass, and the stability of fixed buried hack lever is good but limits place Flexible utilization, also the inconvenient net to fluffing be finely adjusted；The hack lever connected by mass often selects a hollow case Formula thing puts into inside sand to increase weight to increase the stability of hack lever, the stability of this frame net mode can also, but compared with Big counterweight also make it that its movement is very inconvenient, real situation be the net that tensed originally after using some times because of stress or Fluffing for natural material aging certainty is sagging, and excessively sagging can influence to use, and frequently changes net for popular Body building place for be also impossible to, this be accomplished by both sides support net hack lever outwards fine setting with stretching ball Net makes it return to the state in accordance with the standard of setting, it is clear that larger counterweight make it that hack lever movement is highly difficult, and this place is a variety of The imperfection of frame net facility is it will be apparent that being sought after improving.

The content of the invention

The purpose of the present invention is the net and the new skill of hack lever for providing a kind of tennis or badminton field apparatus Art scheme tennis net braces assembly, it can eliminate a variety of not enough problems listed by said apparatus.

The technical proposal of the invention is realized in this way, and it includes net, hack lever, ballast box, is filled under the ballast box Be equipped with four Load-bearing box wheels, each case wheel have under its side wheel face towards net direction between a wedge-shaped voussoir, voussoir by I-shaped tapered bar is fixedly connected, and tapered bar passes through two sleeve pipes and its activity for being fixed on that ballast box is gone to the bottom by the bar in the middle of it Connection, to the bar upper sleeve through between the outer side pole of tapered bar has a helical spring, the inner end bar of tapered bar in the outer end of the sleeve pipe of outside The inner edge line of ballast box is protruded from inwards, while to be each provided with one round and smooth for the tapered bar lower edge also at two sleeve pipe left end positions Projection；One fork arm, which is passed down through, to be installed on the fork arm pipe of the inboard facade of ballast box and is flexibly connected with it, at the divergent ends of fork arm All make inclined-plane oblique surface machining inwards in lower end and termination and non homogeneity end face, the lower end of fork arm also touches the I-shaped wedge under it The lateral surface of the inner end bar of bar.

The beneficial effects of the invention are as follows that can allow hack lever together with ballast box arbitrarily to adjust movement, stretching net and it can constantly protect The stability of rack is held, easily net and hack lever, ballast box can also be pushed away and moved during flexible using area, it is convenient real With.

Brief description of the drawings：

Fig. 1 is the general assembly front view of the design citing rack assembly.

Fig. 2 be ballast box when voussoir is in locking case wheel state and its under, the amplification for each part that is connected in it faces Figure（By taking ballast box and hack lever on the left of net assembly as an example）.

Fig. 3 is partial enlargement front view when voussoir is in non-locking case wheel state（Now pressed under fork arm）.

Fig. 4 be the ballast box corresponding with Fig. 2 states and its under, the right side view for each part that is connected in it（Now pitch The lower end inclined-plane of bar touches the lateral surface of the inner end bar of the I-shaped tapered bar under it）.

Fig. 5 be the ballast box corresponding with Fig. 3 states and its under, the right side view for each part that is connected in it（Fork arm I-shaped tapered bar is strutted and is moved out by the inner end bar that lower end inclined-plane moves down the I-shaped tapered bar crossed under it inwards together with voussoir With the contact of case wheel, while projection in company with tapered bar sleeve pipe by whole tapered bar and case wheel is slightly appeared on the stage so that voussoir is separated from Contact with ground, case wheel is in can free rolling non-locking state）.

Fig. 6 is the location status view under ballast box and its connector vertical view state（Ballast box and case wheel are indicated with dotted line Not influence the expression effect of miscellaneous part）.

Fig. 7 is the front view of voussoir, tapered bar, sleeve pipe and projection.

In each figure, 1 is net, and 2 be hack lever, and 3 be ballast box, and 4 be case wheel, and 5 be voussoir, and 6 be tapered bar, and 7 be spring, and 8 are Projection, 9 be sleeve pipe, and 10 be fork arm pipe, and 11 be fork arm.

Embodiment：

Illustrate the design below in conjunction with the accompanying drawings.

Net 1 of the design between each hack lever 2, the hack lever of ballast box 3 and two of the office left and right sides is constituted, and hack lever is solid Due on ballast box, the hack lever and ballast box symmetrical mounting of both sides, as Fig. 1 the design illustrates the general assembly front view institute of rack assembly Show；Device has four Load-bearing box wheels 4 as dolly on bottom under ballast box 3, and it can make ballast box light together with hack lever The movement of pine, each case wheel has a wedge-shaped voussoir 5 i.e. often under the ballast box of side under its side wheel face towards net direction There are four voussoirs supporting with case wheel, the wheel face wedge angle that it can be filled up between case wheel and ground thereby can effectively prevent case Wheel is in the rolling that this side up；Between four voussoirs by one vertical view effect be fixedly connected in I-shaped tapered bar 6, as Fig. 2, Fig. 3, Shown in Fig. 6, Fig. 7（Ballast box and hack lever on the left of using net assembly is example plots）, tapered bar 6 also passed through by bar in the middle of it Two concentric same specification sleeve pipes 9 for being fixed on the bottom of ballast box 3 are flexibly connected with it, the sleeve pipe in outside（Relative to ball For the direction of net, i.e., the direction of net side is inner, and the sleeve pipe for the inside in two sleeve pipes close to net is away from net The sleeve pipe of outside）Outer end to tapered bar outer side pole（Left side bar）Between bar upper sleeve through have one be in by the helical spring of compression shape 7（As shown in Figure 6）, can thereby allow tapered bar to drive voussoir to stopper case wheel to reach the purpose of stop；The inner end bar of tapered bar（That is work The bar kept right of font tapered bar）The inner edge line of ballast box is slightly protruded from inwards（As shown in Figure 6）, while also at the place of tapered bar lower edge Position near the left end of two sleeve pipes 9 is each provided with a round and smooth projection 8, and it can slide into sleeve pipe when tapered bar is moved to right Internal cause footprint characteristic convex under it slightly raise tapered bar and voussoir so that voussoir is separated from the contact with ground（Such as Fig. 3 institutes Show）；One wishbone is that fork arm 11 is passed down through that to be installed on ballast box 3 inboard（Right side）The fork arm pipe 10 of facade immediate vicinity and its It is flexibly connected, the divergent ends of fork arm 11 are in lower end and inclined-plane is all made inwards in termination（To the right）Oblique surface machining and non homogeneity end face （As shown in Fig. 2 Fig. 3 Fig. 4 Fig. 5）, the lower end of fork arm also touches the lateral surface of the inner end bar of the I-shaped tapered bar under it, thereby Can when required by it is lower by fork arm by fork arm lower surface inclined-plane inwards（To the right）Support pushes away tapered bar（As shown in Fig. 3, Fig. 5）. So, the basic structure composition of the tennis net braces assembly of the design is just described, and concrete operations are in use, working as needs both sides Outwards regulation when moving of case wheel（Purpose is that stretching net eliminates the too sagging of net middle part）, operator can be first Original voussoir in lock-out state by fork arm 11 is disengaged it from into open lock-out state by lower, i.e., from Fig. 2, Fig. 4 shape be changed into Fig. 3, Fig. 5 shapes, as it was previously stated, therefore voussoir 5 regulation can operate and move up some distances to the right, have been separated from and case wheel and ground Locking contact, case wheel be free to not receive the left-right rotation of limitation, then can push out the segment distance of ballast box one Net is set to reach tensioning（Only the ballast box of operation side or all outside of both sides it can elapse）Fork arm is moved up after shape again by tapered bar And voussoir sets back under the resilient force of spring, i.e., the locking state of Fig. 2, Fig. 4 shape is returned to by Fig. 3, Fig. 5 shape, it is complete Into the regulation operation of once tensioning net；Also it is in addition same when place because flexibly being removed frame net assembly using needs completely Mode of operation, the light promotion that the hack lever and ballast box for being separated from locking state can be as small handcarts, and once locking Then can possess sufficient one way stable again, having reached can finely tune and easily push open and can be motionless easily with fixed position Purpose of design, greatly meet the body building needs of such place people.

Claims

1. a kind of tennis net braces assembly, it includes net, hack lever, ballast box, it is characterized in that device has four under the ballast box Individual Load-bearing box wheel, each case wheel has between a wedge-shaped voussoir, voussoir under its side wheel face towards net direction by I-shaped Tapered bar be fixedly connected, tapered bar is passed through by bar in the middle of it to be fixed on two sleeve pipes that ballast box goes to the bottom and is flexibly connected with it, To the bar upper sleeve through between the outer side pole of tapered bar there is a helical spring in the outer end of the sleeve pipe of outside, the inner end bar of tapered bar is convex inwards For the inner edge line of ballast box, while to be each provided with one round and smooth convex for the tapered bar lower edge also at two sleeve pipe left end positions Block, tapered bar and voussoir are raised so that voussoir is separated from and ground to slide into profile convex under in sleeve pipe when tapered bar is moved to right Contact；One wishbone, which is passed down through, to be installed on the fork arm pipe of the inboard facade of ballast box and is flexibly connected with it, at the divergent ends of fork arm All make inclined-plane oblique surface machining inwards in lower end and termination and non homogeneity end face, the lower end of fork arm also touches the I-shaped wedge under it The lateral surface of the inner end bar of bar；Concrete operations in use, when needing to move the outside regulation of the case wheel of both sides, incite somebody to action original first By fork arm disengage it from out lock-out state by lower in the voussoir of lock-out state, voussoir can therefore adjust operation and to the right to moving up Some distances are moved, has been separated from and has been contacted with the locking on case wheel and ground, then can push out the segment distance of ballast box one makes ball Wondertek finally moves up fork arm and set back by tapered bar and voussoir under the resilient force of spring again to tensioning shape.