CN1994505B - Hurdle stand - Google Patents

Abstract

The invention relates to a hurdles support with simple adjustment of upper horizontal rod and weight block, wherein it comprises upper horizontal rod whose lower side is fixed with one couple of posts; each post has several adjusting holes; the post sheaths the outside of inner tube of post; two lower ends of inner tubes of two posts have one fixed bottom horizontal rod between; the lower end of each inner tube is fixed with one bottom base tube which contains weight block; the limit ball between inner and outer tubes for locking upper horizontal rod is controlled by the upper horizontal rod height positioning device formed by wiring device and steel wire; the weight lock between inner tube and base tube at another side is hinged to the outer tube via the weight adjuster formed by steel line, driving pin and several blocks. The invention can simplify the adjustment.

Description

Hurdles

technical field

The invention relates to a sports equipment, in particular to a hurdle frame.

Background technique

The hurdle frame is a kind of sports equipment that is widely used. Figures 1 to 4 show the structure of the currently used hurdle frame, including: an upper cross bar 1, a pair of column outer tubes 2 are fixed on the lower side of the upper cross bar 1, Each column outer tube 2 is provided with a number of adjustment holes, the column outer tube 2 is set on the outside of the column inner tube 3, a bottom cross bar 7 is fixed between the lower ends of the two column inner tubes 3, and each column inner tube 3 A base square tube 8 is also fixed at the lower end of the base square tube 8, a counterweight 9 is arranged in the base square tube 8, an adjustment slot 11 is arranged on the base square tube 8, and the counterweight pull pin 10 is located in the adjustment slot 11, and It is threadedly connected with the counterweight 9; between the column inner tube 3 and the column outer tube 2, an upper cross bar height positioning device is arranged, and its structure is: an inner tube spring 4 is arranged in the column inner tube 3, and the limit touch bead 5 is fixed with one end of inner tube spring 4, and some adjustment holes are arranged on the column outer tube 2, and the limit touch beads 5 stretch into the adjustment holes. In actual use, when the height of the upper cross bar 1 needs to be adjusted, the operator pushes the limit touch beads 5 on both sides inward with both hands, and then pulls up or presses down the upper cross bar 1 to a suitable position. , under the action of the inner tube spring 4, the limit touch bead 5 will extend into the corresponding adjustment hole; after the height of the upper cross bar 1 is adjusted, the position of the counterweight 9 needs to be adjusted again to maintain the upper horizontal bar 1. The balance position relationship between the rod 1 and the counterweight 9 is adjusted as follows: first remove the counterweight pull pin 10, move the counterweight 9 to a suitable position in the square tube 8 of the base, and then install the counterweight pull pin 10. Pin 10 will do. The disadvantage of the hurdle frame with the above structure is: the adjustment process of the upper cross bar 1 and the counterweight 9 is too cumbersome and very inconvenient to use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hurdle frame which can make the adjustment of the upper cross bar and the counterweight quite simple and easy to use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a hurdle frame, comprising: an upper cross bar, a pair of column outer tubes are fixed on the lower side of the upper rail, and several adjustment holes are arranged on each column outer tube, and the outer tube of the column The tube sleeve is set on the outside of the inner tube of the column, and a bottom cross bar is fixed between the lower ends of the inner tubes of the two columns, and a base tube is fixed at the lower end of the inner tube of each column, and a counterweight is arranged in the base tube; A height positioning device for the upper cross bar is provided between the inner tube of the column and the bottom cross bar, and a counterweight adjustment device is also provided between the inner tube of the column and the base tube on each side; the structure of the height positioning device for the upper cross bar It is: a mounting block is fixed on the upper end of the inner tube of each column, and a cavity is arranged in the mounting block, and the steel wire rope is passed through the inner tube of the two column and the bottom cross bar, and the two ends of the steel wire rope pass through the cavity respectively. Fixed on the upper end of the mounting block, the steel wire rope is bent inwards in the cavity to form an elastic protrusion, the limit bumper is set on the elastic protrusion, the outer end of the limit bumper extends out of the adjustment hole, and the limit bumper The other end is provided with an inner tube spring, the inner tube spring is located in the cavity, a wire tensioner is fixed on the wire rope in the bottom cross bar, and the upper end of the wire tensioner extends out of the bottom cross bar; the structure of the counterweight adjustment device It is: an upper pulley is also fixed in the inner tube of each column, a lower pulley is fixed at the outer end of each base tube, the steel cable is passed between the upper pulley and the lower pulley, and the two ends of the steel cable are respectively Fixed at both ends of the counterweight, a driving pin is fixed on a steel cable in the inner tube of the column, and a chute is opened on the inner tube of the column, the driving pin passes through the chute and is fixed with the outer tube of the column .

Left and right transition pulleys are also arranged at the bending part where the inner tube of the column is connected with the base tube for the steel cable to pass around.

The beneficial effects of the present invention are: because the present invention connects the wire tensioner with the limit bumper through the steel wire rope, the height adjustment of the outer tube of the column is very convenient, thereby facilitating the adjustment of the height of the upper cross bar arranged on the outer tube of the column; In addition, while adjusting the height of the upper cross bar, the up and down movement of the outer tube of the column pulls the counterweight to the position matching the height of the upper cross bar through the movement of the steel cable on the pulley, thus realizing the upper rail. The purpose of adjusting the height of the cross bar and the position of the counterweight block in place at one time greatly simplifies the adjustment process of the hurdle frame and greatly facilitates the use of the hurdle frame.

Description of drawings

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the schematic diagram of the front view structure of the hurdle frame described in the background technology;

Fig. 2 is a top view structural schematic diagram of Fig. 1;

Fig. 3 is a partially enlarged structural schematic diagram of the base square tube in Fig. 2;

Fig. 4 is a schematic diagram of a local structure in the K direction in Fig. 2;

Fig. 5 is a front view structural schematic diagram of the present invention;

Fig. 6 is a schematic diagram of the right view structure of Fig. 5;

Fig. 7 is a schematic diagram of an enlarged structure of part A in Fig. 5;

Fig. 8 is a schematic diagram of an enlarged structure of part B in Fig. 6;

FIG. 9 is a schematic diagram of a partial structure in the M direction in FIG. 5 .

in:

Fig. 1 to Fig. 4 are the structure schematic diagrams of the hurdle frame described in the background technology, in the figure: 1, the upper cross bar, 2, the column outer tube, 3, the column inner tube, 4, the inner tube spring, 5, the limit bumper Bead, 7, bottom cross bar, 8, base square tube, 9, counterweight block, 10, counterweight pull pin, 11, adjustment slot;

Figures 5 to 9 are schematic structural views of the hurdle frame according to the present invention, in which: 1, the upper cross bar, 2, the outer tube of the column, 3, the inner tube of the column, 4, the spring of the inner tube, 5, the limit bumper , 6, wire rope, 7, bottom cross bar, 8, base tube, 9, counterweight, 10, steel cable, 11, drive pin, 12, installation block, 13, wire tensioner, 14, sliding block, 21 , adjustment hole, 31, chute, 101, upper pulley, 102, left transition pulley, 103, right transition pulley, 104, lower pulley.

Detailed ways

As shown in Fig. 5 and Fig. 6, the hurdle frame according to the present invention includes: an upper cross bar 1, a pair of column outer tubes 2 are fixed on the lower side of the upper rail 1, and a plurality of adjustment holes are arranged on each column outer tube 2 21——As shown in Figure 9, the column outer tube 2 is set on the outside of the column inner tube 3, and a bottom cross bar 7 is fixed between the lower ends of the two column inner tubes 3, and the lower end of each column inner tube 3 is also fixed There is a base tube 8, and a counterweight 9 is arranged in the base tube 8; an upper bar height positioning device is arranged between the column inner tube 3 and the bottom bar 7, and the column inner tube 3 on each side and the base A counterweight adjustment device is also provided between the tubes 8; the structure of the upper cross bar height positioning device is as follows: as shown in Figure 5 and Figure 7, a mounting block 12 is fixed on the upper end of each column inner tube 3 , the installation block 12 is provided with a cavity, the steel wire rope 6 is passed through the column inner tube 3 and the bottom cross bar 7, the two ends of the steel wire rope 6 pass through the cavity respectively and are fixed on the upper end of the installation block 12, the steel wire rope 6 is in the cavity The center is bent inwardly to form an elastic protrusion 61, the limit touch bead 5 is arranged on the elastic protrusion 61, the outer end of the limit touch bead 5 extends out of the adjustment hole 21, and the other end of the limit touch bead 5 is provided with an inner The tube spring 4 and the inner tube spring 4 are located in the cavity, and a wire tensioner 13 is fixed on the wire rope 6 in the bottom crossbar 7, and the upper end of the wire tensioner 13 extends out of the bottom crossbar 7; the counterweight adjustment device The structure is: as shown in Figure 6 and Figure 8, an upper pulley 101 is also fixed in each column inner tube 3, and a lower pulley 104 is fixed at the outer end of each base tube 8, and the column inner tube 3 and the base The bending part connected to the pipe 8 is also provided with left and right transition pulleys 102 and 103 for the steel cable 10 to pass around. The steel cable 10 is passed between the upper pulley 101 and the lower pulley 104, and passes through the left and right Transition pulley 102, 103 transition, and the two ends of steel cable 10 are respectively fixed on the two ends of counterweight 9, and drive pin 11 is fixed on a steel cable 10 in column inner tube 3, and in column inner tube 3 is also provided with a chute 31, and the drive pin 11 passes through the chute 31 and is fixed with the column outer tube 2. As shown in FIG. 8 , during actual production, the driving pin 11 passes through the chute 31 , and a steel cable 10 is fixedly connected with the column outer tube 2 through a sliding block 14 .

The working principle of the present invention is: by stepping on the upper end of the wire tensioner 13 to tighten the steel wire rope 6 connected with it, so that the two elastic protrusions 61 of the steel wire rope 6 located in the inner tubes 3 of the columns on both sides are deformed at the same time, thereby driving the limiter. The bit touch bead 5 retracts inward until it leaves the adjustment hole 21 on the column outer tube 2, and then the upper cross bar 1 can be moved up or down, and the upper bar 1 drives the column outer tube 2 to move upward together. After the height is high, loosen the tensioner 13, under the action of the inner tube spring 4, the outer end of the limit bumper 5 will stretch out the adjustment hole 21, thereby positioning the column outer tube 2, so that the upper cross bar 1 positioned at the desired height. In the process of adjusting the height of the upper cross bar 1, that is, in the process of moving up and down the column outer tube 2 relative to the column inner tube 3, the column outer tube 2 drives the steel cable 10 to move correspondingly through the driving pin 11 at the same time, The steel cable 10 then drives the counterweight 9 to move accordingly, and when the upper cross bar 1 is adjusted to the required height, the counterweight 9 also arrives at a position suitable for the height of the upper cross bar 1 at the same time; The height of bar 1 and the position of counterweight 9 have just been adjusted simultaneously.

Claims (2)

1. the frame of hurdling, comprise: cross tube, the cross tube downside is fixed with a pair of column tube, each column tube is provided with some adjustment holes, column tube is sleeved on the pipe outside in the column, be fixed with a foundation cross bar in two columns between the lower end of pipe, the lower end of pipe also is fixed with a base tube in each column, is provided with balancing weight in base tube; In column, be provided with cross tube height positioner between pipe and the end cross bar, in the column of each side, also be provided with the counterweight adjusting device between pipe and the base tube; It is characterized in that: the structure of described cross tube height positioner is: the upper end of pipe is fixed with a mounting blocks in each column, be provided with cavity in the mounting blocks, steel wire rope is located in interior pipe of two columns and the end cross bar, the upper end that is fixed on mounting blocks behind the cavity is passed at the two ends of steel wire rope respectively, steel wire rope inside bending in cavity forms elastic bumps, spacingly bump pearl and be arranged on this elastic bumps, adjustment hole is stretched out in the spacing outer end of bumping pearl, pipe spring in the spacing other end that bumps pearl is provided with, interior pipe spring is arranged in cavity, be fixed with turnbuckle on the steel wire rope in end cross bar, end cross bar is stretched out in the upper end of turnbuckle; The structure of described counterweight adjusting device is: also be fixed with top sheave in each column in the pipe, outer end in each base tube is fixed with lower sheave, steel cable is located between top sheave and the lower sheave and the two ends of steel cable are separately fixed at the two ends of balancing weight, be fixed with drive pin on the steel cable in column in the pipe, also offer chute in column on the pipe, drive pin passes chute and fixes with column tube.

2. the frame of hurdling as claimed in claim 1 is characterized in that: in column the bending part that is connected with base tube of pipe also be provided with the confession steel cable wear around left and right transition pulley.

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