CN105221056B

CN105221056B - The working stand of support function can be strengthened

Info

Publication number: CN105221056B
Application number: CN201410242235.1A
Authority: CN
Inventors: 张仕杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-03
Filing date: 2014-06-03
Publication date: 2017-03-15
Anticipated expiration: 2034-06-03
Also published as: CN105221056A

Abstract

A kind of working stand for strengthening support function, comprising a pair of ladder units and a support bar, the ladder unit respectively has the first montant, second montant, a foot lever for being connected to second montant and the several treadles being connected between first montant and second montant, second length of one the first length of first montant more than second montant, the foot lever can operate into a second place by a primary importance, and the support bar coordinates the foot lever operate into a stowed position by a Support Position.Whereby, the working stand can vertical brace be launched in ground or relatively simultaneously according to use height, and reaches preferable stability of strutting system purpose.

Description

The working stand of support function can be strengthened

Technical field

The auxiliary appliance the present invention relates to one kind is climbed, more particularly to a kind of working stand for strengthening support function.

Background technology

Existing common working stand, such as No. 319318 Patent Cases of TaiWan, China Announcement Number, mainly include two mutual pivots The ladder for connecing, the ladder respectively have two side poles and the several treadles for being connected to the side pole.This working stand can be according to Change the angle between the ladder according to required working depth, for example, when between the ladder, angle is less than 90 degree, described Ladder is pivoted in inverted V-shaped and while vertical brace is in ground, it is adaptable to which the relatively low occasion of working depth is used.When the ladder is opened up mutually Open in 180 degree, and one of ladder is propped up in ground, another ladder is then resisted in eminence, just can be suitably used for work high The higher occasion of degree is used.

Although, this working stand is commonly used, is because that the width of the ladder is general all less, so that should The ladder of working stand simultaneously vertical brace when ground, an inverted V-shaped side being constituted corresponding to two ladders lateral steady Surely spend poor, once have external force from the lateral impact of the working stand or stand on that operating personnel at the top of working stand are amesiality to make Into the crank of working stand, be all likely to result in working stand topple over and there is staff get injured by a fall accident.Furthermore, it is also possible to because Ground is unstable, causes the stable support effect of the ladder poor, it is also possible to which above-mentioned dangerous situation occurs.

For another example No. 267756 Patent Cases of TaiWan, China Announcement Number, are to be articulated with a support in a ladder top side Bar, using two strong points and the support bar bottom of the ladder bottom, can produce effect of three-point fix.Though this working stand Stability can so be promoted, but operation form is only limited to the ladder with the support bar while vertical brace is in ground, and is only applicable to work Make highly relatively low occasion to use, when higher working depth is needed, this working stand cannot just be used, so using model Enclose less, also more impracticable.

Content of the invention

It is an object of the invention to provide a kind of can be adjusted to different use states and be had using height for different Preferably stablize the working stand of the support function strengthened of supportive.

The present invention can strengthen the working stand of support function, comprising a pair of ladder units and a support bar, the ladder list Unit respectively can be adjusted and be connected to this with spaced second montant of first montant, one with first montant, one The foot lever of the second montant and several interval settings and the treadle being connected between first montant and second montant, described First montant is respectively with first pivot end being mutually articulated with the first corresponding montant and one in contrast to first pivot Connect the first end at end, second montant respectively have second pivot end being mutually articulated with the second corresponding montant, One second end and location division being located on the inside of the second end in contrast to second pivot end, first pivot end First length between the first end is more than second length between second pivot end and the second end, The foot lever respectively have one be connected to the connecting portion of the second corresponding montant, one in contrast to the connecting portion abutting part and One sticking department between the connecting portion and the abutting part, the foot lever can by one be positioned at the sticking department right The primary importance of the location division that answers, operates into the second place for making the sticking department be away from corresponding location division, institute Foot lever is stated in primary importance, second pivot end is substantially equal to first pivot joint to a total length between the abutting part The first length between end and the first end, the support bar have a connection end for being connected to the ladder unit and one In contrast to the positioning end of the connection end, the support bar can make the positioning end be away from the first end and with described by one The Support Position that one end is generally aligned in the same plane, operating into one makes what the positioning end leveled off to the first end to fold position Put, when the support bar is located at the Support Position, the foot lever can be located at the second place, and the support bar is located at the stowed position When, the foot lever can be located at the primary importance.

The present invention can strengthen the working stand of support function, and the connecting portion of the foot lever of the ladder unit can be rotated and pivot Be connected to the second corresponding montant, the foot lever can with the connecting portion as center of rotation, by the primary importance be switched to this second Position.

The present invention can strengthen the working stand of support function, the second montant of the ladder unit also each have one in contrast to The hollow form sleeve pipe of second pivot end, the second end are located at the sleeve pipe with the location division, and the connecting portion of the foot lever can be slided Move and be arranged in the sleeve pipe, and can be operated to the second place by the primary importance, the foot lever also has one and levels off to this The engaging portion of abutting part, in the second place, the engaging portion is positioned at the location division to the foot lever.

The present invention can strengthen the working stand of support function, also involve unit comprising one, and this involves unit and at least has one Individual the support bar be located at the Support Position when can involve scratching between the second montant of the support bar and the ladder unit Property part.

The present invention can strengthen the working stand of support function, and this involves the flexible element of unit in ribbon, and quantity is three, This involves unit and also there is three hook parts for being individually fixed in the support bar and the correspondence position of second montant, the flexibility Part respectively have one be fixed on the support bar, the fixing end of second montant and one can hooking in adjacent support bar or the The hooking end of the hook part of two montants.

The present invention can strengthen the working stand of support function, and the flexible element for involving unit is the chain of several ring snappings Strip.

The present invention can strengthen the working stand of support function, and the second montant of the ladder unit also each have one and is arranged at The location division side and the junction surface that can connect for the connecting portion of the foot lever respectively, the foot lever are in the second place, described Abutting part is respectively positioned on the inside of the first end of first montant.

The present invention can strengthen the working stand of support function, and the foot lever of the ladder unit is in the second place, described Abutting part is positioned at the first end of first montant respectively with a latch fitting, and the foot lever also each have an energy for described Perforation that latch fitting is passed through and one are inserted in the location division and can pass through the latch of the sticking department, and the foot lever is in primary importance When, the latch is through the sticking department and the location division.

The present invention can strengthen the working stand of support function, when the support bar is located at the Support Position, the ladder unit energy Simultaneously angle of the vertical brace in ground and between the ladder unit is less than 90 degree.

The present invention can strengthen the working stand of support function, and when the support bar is located at the stowed position, the ladder unit is mutual Angle between phase demodulation and the ladder unit levels off to 180 degree.

The beneficial effects of the present invention is：The second place can be operated into by the primary importance using the foot lever, and The support bar can be operated into the effect of the stowed position by the Support Position, not only can be adjusted to not using height for different Same use state, and the support bar can make working stand generation preferably stablize supportive at Support Position.

Description of the drawings

Fig. 1 is a three-dimensional combination figure of one the first preferred embodiment of working stand that the present invention can strengthen support function, Show the present invention in a vertical brace use state；

Fig. 2 is a floor map of the preferred embodiment, show two ladder units simultaneously vertical brace in ground and one Prop up support bar and be located at a Support Position；

Fig. 3 is the sectional view taken by the straight line III-III in Fig. 2；

Fig. 4 is a close-up schematic view of Fig. 1, and display one involves unit and is connected to the support bar with the ladder Between unit；

Fig. 5 is another three-dimensional combination figure of the preferred embodiment, shows that the working stand is located at an expansion use state；

Fig. 6 is another floor map of the preferred embodiment, shows the mutual phase demodulation of ladder unit and the support Bar is located at a stowed position；

Fig. 7 is the sectional view taken by the straight line VII-VII in Fig. 6；

Fig. 8 is a three-dimensional combination figure of one the second preferred embodiment of working stand that the present invention can strengthen support function, Show in a vertical brace use state；

Fig. 9 is a part isometric exploded view of second preferred embodiment, shows that a foot lever can slide and be plugged in One inside pipe casing；

Figure 10 is another three-dimensional combination figure of the preferred embodiment, shows that the working stand uses shape positioned at an expansion State.

Specific embodiment

Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail.

Fig. 1 and Fig. 2 is referred to, the present invention can strengthen one the first preferred embodiment of working stand of support function, comprising a pair 10, support bar 20 of ladder unit and one involve unit 30.

Respectively there is the ladder unit 10 first montant 11, to be erected with first montant 11 spaced second 12, foot lever 13 that can adjust and be articulated in second montant 12 of bar and several interval settings and it is connected to this and first erects Treadle 14 between bar 11 and second montant 12.

First montant 11 respectively have first pivot end 111 being mutually articulated with the first corresponding montant 11, One first end 112 and latch fitting 113 for being locked on the first end 112 in contrast to first pivot end 111.

Second montant 12 respectively have second pivot end 121 being mutually articulated with the second corresponding montant 12, One second end 122, in contrast to second pivot end 121 is located at the location division 123 of the second end 122 and one It is arranged at the junction surface 124 of 123 side of location division, the first pivot end 111 of first montant 11 and the first end 112 Between first length L1 more than second length L2 between second pivot end 121 and the second end 122.This In embodiment, the location division 123 is located between the junction surface 124 and the second end 122.

Coordinate ginseng Fig. 3, the foot lever 13 that respectively there is an engagement that can rotate and be articulated in the second corresponding montant 12 131, abutting part 132, in contrast to the connecting portion 131 of connecting portion in portion 124 is abutted with this between the connecting portion 131 Sticking department between portion 132 133, one corresponding to the latch fitting 113 perforation 134 and one be inserted in the location division 123 and Can be through the latch 135 of the sticking department 133.

The support bar 20 is with a connection end 21 for being articulated in the ladder unit 10 and one in contrast to the connection end 21 positioning end 22.

Coordinate ginseng Fig. 4, this involves unit 30 and at least involves in the support bar 20 and the ladder unit 10 with one Flexible element 31 and three correspondence positions for being individually fixed in the support bar 20 and second montant 12 between second montant 12 Hook part 32.31 quantity of flexible element of the present embodiment is three, in ribbon, and the chain form for several ring snappings, And respectively have one be fixed on the support bar 20, the fixing end 311 of second montant 12 and one can hooking in adjacent The hooking end 312 of the hook part 32 of strut 20 or the second montant 12.

Again as shown in Figures 1 and 2, when working stand is intended to the occasion relatively low suitable for working depth to be used, first by the ladder The foot lever 13 of frame unit 10 operates into a second place, and now, the sticking department 133 is away from corresponding location division 123, the abutting part 132 is respectively positioned on the inside of the first end 112 of first montant 11, and as shown in figure 3, described support The perforation 134 of socket part 132 is passed through with the latch fitting 113 respectively, is promoted the lock of the abutting part 132 to set and is located at first montant 11.

Make angle between the ladder unit 10 be less than 90 degree again, and operate the positioning end 22 of the support bar 20 to be away from The first end 112 and with the first end 112 be located at approximately the same plane so that the support bar 20 be located at a support level Put.Then, as shown in figure 4, involving the flexible element 31 for involving unit 30 in the support bar 20 and described respectively again Between two montants 12, and 312 hooking of hooking end of the flexible element 31 is caused in adjacent support bar 20 and the second montant 12 Hook part 32 on.

Now, the first end 112 of the ladder unit 10 and the positioning end 22 are while vertical brace is in ground, and produces Three-point fix is acted on, and when actually used, the ladder unit 10 with respect to the horizontal plane can be inclined to set, that is to say, that All there is between the foot lever 13 and horizontal plane an elevation angle theta, and be supported in using the support bar 20 another in contrast to the elevation angle theta Side, can make the working stand obtain effect of strong fix, even if having lateral impact or operating personnel of the external force from the working stand Deviation of gravity center, the working stand do not result in yet topple over, staff will not occur get injured by a fall accident.Furthermore, even if ground is uneven Surely, also stable support effect can be produced using the three-point fix effect of the working stand, can prevent dangerous situation from occurring.

And for example shown in Fig. 5, Fig. 6 and Fig. 7, when the working stand is intended to the occasion higher suitable for working depth to be used, can be first The foot lever 13 is operated into a primary importance, and the wearing from the abutting part 132 by the latch fitting 113 by the second place Pull down in hole 134, pull the foot lever 13, and make the connecting portion 131 and with the junction surface 124 of second montant 12 be respectively Center of rotation produces turn, when the sticking department 133 corresponds to the location division 123, passes through the lock using the latch 135 Determine portion 133 and the location division 123, and make the sticking department 133 be positioned at corresponding location division 123, the foot lever 13 is located at The primary importance, now, the foot lever 13 is overlapped in the second end 122 of second montant 12, and it is perpendicular to extend described second The bearing length of bar 12, that is to say, that, in primary importance, second pivot end 121 is to the abutting part 132 for the foot lever 13 Between a total length L be substantially equal to the first length L1 between first pivot end 111 and the first end 112.

Then, it is in 180 degree then by 10 mutual phase demodulation of the ladder unit, and the support bar 20 is operated into one makes this fixed Position end 22 levels off to the stowed position of the first end 112, then by the first end 112 of one of ladder unit 10, support Socket part 132 is propped up in ground, and another ladder unit 10 is then resisted in eminence, can just carry out the operation of eminence.

Therefore, working stand of the invention, as shown in Figures 1 and 2, in the state that the foot lever 13 operates into the second place Under, and the ladder unit 10 is pivoted in inverted V-shaped, coordinate the support bar 20 to operate into Support Position, then not only can be suitably used for The relatively low occasion of working depth is used, and using the first end 112 and the positioning end 22 while vertical brace is in ground, and produces Three-point fix is acted on, and is promoted the working stand to obtain effect of strong fix, be can ensure that the work safety of eminence staff.

In addition, again as shown in Figures 5 and 6, in the state of the foot lever 13 operates into the primary importance, and by the ladder 10 mutual phase demodulation of frame unit is propped up in ground using the first end 112 of one of ladder unit 10, abutting part 132 in 180 degree Face, another ladder unit 10 are resisted in eminence, can just carry out the operation of eminence.So the working stand can be converted according to actual demand Form, use range is wider, also more practical, can solve the problems, such as really work on hand ladder.

For another example Fig. 8, Fig. 9 and Figure 10, the present invention can strengthen second preferred embodiment of working stand of support function, real with first Apply example to be substantially the same, be at difference:First montant 11 ' of the ladder unit 10 ' is omitted and arranges the latch fitting, and Second montant 12 ' also each have a hollow form sleeve pipe 125 ' in contrast to second pivot end 121 ', the second end 122 ' The sleeve pipe 125 ' is located at the location division 123 ', and the foot lever 13 ' respectively has one and can slide and be arranged in the sleeve pipe 125 ' In connecting portion 131 ', abutting part 132 ' in contrast to the connecting portion 131 ', one support with this between the connecting portion 131 ' Between socket part 132 ' and level off to the sticking department 133 ' of the connecting portion 131 ', an engaging portion for leveling off to the abutting part 132 ' 134 ' and one be inserted in the location division 123 ' and the latch 135 ' of the sticking department 133 ' or the engaging portion 134 ' can be passed through, described In the primary importance, the sticking department 133 ' is positioned at the location division 123 ' (see Figure 10) by the latch 135 ' to foot lever 13 ', In the second place, the engaging portion 134 ' is positioned at the location division 123 ' (see figure by the latch 135 ' to the foot lever 13 ' 8).

Therefore, the second preferred embodiment of the invention, the foot lever 13 ' also can be operated to the second by the primary importance Put, and the form of the working stand can be converted according to actual demand, can also reach and first embodiment identical purpose and effect.

Claims

1. a kind of working stand for strengthening support function, comprising a pair of ladder units and a support bar, the feature of the working stand It is：

The ladder unit, respectively has first montant, one and spaced second montant of first montant, an energy Adjustment and it is connected to the foot lever of second montant and several interval settings and is connected to first montant and second montant Between treadle, first montant respectively has first pivot end being mutually articulated with the first corresponding montant and one In contrast to the first end of first pivot end, second montant is respectively had one and is mutually articulated with the second corresponding montant The second pivot end, one in contrast to second pivot end second end and one be located at the second end on the inside of positioning Portion, first length between first pivot end and the first end are more than between second pivot end and the second end Second length, respectively there is the foot lever one to be connected to the connecting portion of the second corresponding montant, one in contrast to this The abutting part of connecting portion and a sticking department between the connecting portion and the abutting part, the foot lever can be made described by one Sticking department is positioned at the primary importance of corresponding location division, and operating into one makes the sticking department be away from corresponding positioning The second place in portion, in primary importance, second pivot end is equal to a total length between the abutting part for the foot lever The first length between first pivot end and the first end；

The support bar, with a connection end for being connected to the ladder unit and a positioning end in contrast to the connection end, The support bar can by one make the positioning end be away from the first end and with the first end be generally aligned in the same plane Support position, operating into one makes the positioning end level off to the stowed position of the first end, and the support bar is located at the support level When putting, the foot lever can be located at the second place, and when the support bar is located at the stowed position, the foot lever can be located at this first Put.

2. the working stand for strengthening support function according to claim 1, it is characterised in that：The ladder unit described The connecting portion of foot lever can rotate and be articulated in the second corresponding montant, the foot lever can with the connecting portion as center of rotation, by The primary importance is switched to the second place.

3. the working stand for strengthening support function according to claim 1, it is characterised in that：The second of the ladder unit Montant also each have a hollow form sleeve pipe in contrast to second pivot end, and the second end is located at the set with the location division Pipe, the connecting portion of the foot lever can slide and be arranged in the sleeve pipe, and can be operated to the second place by the primary importance, described Foot lever also has an engaging portion for leveling off to the abutting part, and in the second place, the engaging portion is positioned at the foot lever The location division.

4. the working stand of the support function strengthened according to Claims 2 or 3, it is characterised in that：Also involve comprising one Unit, this involve unit and at least can involve in the support bar and the ladder when the support bar is located at the Support Position with one Flexible element between second montant of frame unit.

5. the working stand for strengthening support function according to claim 4, it is characterised in that：This involves the flexible element of unit Being in ribbon, and quantity being three, this involves unit and also the support bar is individually fixed in second montant with three The hook part of correspondence position, the flexible element respectively have one and are fixed on the support bar, the fixing end of second montant and one Energy hooking is in the hooking end of the hook part of adjacent support bar or the second montant.

6. the working stand for strengthening support function according to claim 5, it is characterised in that：This involves the flexible element of unit Chain form for several ring snappings.

7. the working stand for strengthening support function according to claim 2, it is characterised in that：The second of the ladder unit Montant also each have one and is arranged at the location division side and the junction surface that can connect for the connecting portion of the foot lever respectively, described In the second place, the abutting part is respectively positioned on the inside of the first end of first montant foot lever.

8. the working stand for strengthening support function according to claim 7, it is characterised in that：The ladder unit described In the second place, the abutting part is positioned at the first end of first montant, the pin to foot lever respectively with a latch fitting Bar also each have the perforation that an energy passed through for the latch fitting and one be inserted in the location division and can be through the slotting of the sticking department Pin, in primary importance, the latch is through the sticking department and the location division for the foot lever.

9. the working stand for strengthening support function according to claim 1, it is characterised in that：The support bar is located at the support During position, the ladder unit can be less than 90 degree by angle of the vertical brace in ground and between the ladder unit simultaneously.

10. the working stand for strengthening support function according to claim 9, it is characterised in that：The support bar is located at the receipts When closing position, the angle between the mutual phase demodulation of ladder unit and the ladder unit levels off to 180 degree.