CN203270979U - Antiskid bracket for improving supporting and pressure of stair - Google Patents
Antiskid bracket for improving supporting and pressure of stair Download PDFInfo
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- CN203270979U CN203270979U CN 201320010463 CN201320010463U CN203270979U CN 203270979 U CN203270979 U CN 203270979U CN 201320010463 CN201320010463 CN 201320010463 CN 201320010463 U CN201320010463 U CN 201320010463U CN 203270979 U CN203270979 U CN 203270979U
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Abstract
The utility model discloses an antiskid bracket for improving the supporting and the pressure of a stair. The antiskid bracket is characterized in that supporting rods are added between the ordinary stair and a wall, an auxiliary device or mechanism is arranged between stair feet and the added supporting rods or frames to fix or adjust the angle between the supporting rods or frames and the ground, and then the added supporting rods can be attached with the ground and bear certain gravity, so that the acute angle of the acting force of the stair on the ground, the positive pressure and the sliding friction resistance are improved to reduce the outward horizontal component; especially when the stair has an outward sliding trend or slides at a certain distance, the acute angle between the added supporting rods and the ground is enlarged, so that the direct acting force of the stair feet on the ground is reduced, even is separated from the ground, the acting force of the stair on the ground is mainly or wholly born by the added supporting rods, the acute angle of the whole acting force of the stair on the ground and the positive pressure are larger, and the horizontal component is less to prevent the stair from sliding, and further the problem of potential safety hazards caused by easy sliding of the existing stair is solved. The antiskid bracket disclosed by the utility model is simple in structure and convenient in use.
Description
Technical field
The utility model relates to the stairs antiskid support, and specifically a kind of inboard at common stair increases support bar or frame increases stair to the normal pressure on ground and reduce the outside component of level and realize antiskid function.
Technical background
common stair are for the comfortableness of stair climbing, need make the acute angle angle on stair and ground less, cause outside horizontal component larger, especially when the people climbs to the higher position, stair increase the active force of metope and the normal pressure on ground are diminished, frictional force is easy to less than outside horizontal component, especially at smooth cement, very easily landing and security incident occurs of common stair on ceramic tile ground, add growth in the living standard in recent years, substantially harden on vast rural households ground, because the accident of stair landing tumble injury often occurs, bring great potential safety hazard for people's production and life.In order to reduce the generation of contingency, often need two people to be used in conjunction with, this is waste of manpower both, again in the situation that the carrying out of the inadequate impact normal operation of personnel.
The utility model content
Cause potential safety hazard in order to solve the existing easy landing of stair, it is a kind of by increasing stair at stair and between the walls increase support bar or frame to the normal pressure on ground and reducing the supercharging stairs antiskid support of increasing expenditure of outside horizontal component that the utility model provides.
the utility model is completed like this: according to stair to the active force on ground when the acute angle angle with ground increases, the suffered normal pressure in ground increases and mechanics principle that outside horizontal component will reduce, increase again support bar or frame at common stair and between the walls, the support bar or the frame that increase are advisable so that elastic deformation can occur, and the angle on support bar or frame and ground is kept stable or adjusts, make support bar or the energy close proximity to ground of the slipmat on frame of increase and bear certain gravity, increase stair to the acute angle angle of ground mass action power, gravity is more acted on the support bar or frame of the pin of stair and increase, increase stair the normal pressure on ground is increased sliding-frictional resistance, reduce simultaneously active force and the outside component of level of stair upper end and between the walls, especially when stair have outside tendency toward sliding or slip certain distance, the arm of force that increases support bar or frame and the acute angle on ground have and increase and trend with the pin lifting of stair arranged, gravity makes again stair downslide certain distance reduce the acute angle angle on stair and ground, make foot of stairs reduce even to make the foot of stairs built on stilts to the direct effect power on ground, make stair more or all born by the support bar or the frame that increase to the active force on ground, make stair larger to the mass action power acute angle angle on ground, normal pressure is also larger, the outside component of level is less and stop stair to slide, realize antiskid function.
The described supercharging stairs antiskid support of increasing expenditure is with adjusting round pin with the position and processing the position adjustment draw-in groove that a plurality of selenodonts are adjusted bayonet socket; Or with chain and the cleek that stops the chain slippage at opening part mounting spring sheet (or elastic device) (cleek with two or more and always the integral multiple of spacing and single chain ring length do not wait and be advisable, to increase the regulation stall to length adjustment device) length adjustment device that forms, the support bar of increase or the angle on frame and ground there is level adjustment, make the slipmat on support bar or frame can close proximity to ground and bear certain gravity, make stair and ground mass action power the increase of acute angle angle and realize the stairs antiskid function.
The described supercharging stairs antiskid support of increasing expenditure is that support bar or the stress point of frame (being advisable with elastic steel sheet) on stair that will increase are all fixed and can not adjust; Or when only producing pulling force to connecting rod, support bar or frame with the rope of regular length, the distance of the fulcrum that contacts to earth of contact to earth fulcrum and the foot of stairs of support bar or frame is fixed, support bar or frame fixed with the angle on ground and can be made slipmat contact with ground and realize antiskid function in certain angular range, making the structure of anti-skidding stair simpler.
The described supercharging stairs antiskid support of increasing expenditure is to install in two underfooting of the stair that increase anti-skid support strut or frame that angles equate with the angle of stair or smaller inclined-plane gripper shoe also can be rotated; Or the pin that will increase the stair of anti-skid support strut or frame is processed into opening inside inclined-plane, increase again band with the inclined-plane feet of foot of stairs inclined-plane complementation below foot of stairs and be connected with the connecting rod that can twitch up and down, make foot of stairs glide along the inclined-plane of inclined-plane feet or inclined-plane gripper shoe and can not vertically move down, the upper end of stair can be contacted with wall all the time, improve the stability of stair.
The described supercharging stairs antiskid support of increasing expenditure is to increase by the short ladder that can twitch up and down in the bottom of the stair that increase anti-skid support strut or frame.Ride when low step (being that center of gravity is outside the fulcrum of increase) on the cross-arm at short ladder, gravity is mainly born by short ladder, main staircase only bears short ladder to its inside pressure and the upper end can well be contacted with wall; Ride when higher step (being that center of gravity is in the fulcrum of increase) on the cross-arm at main staircase, gravity is mainly born by support bar or frame that main staircase increases, gravity produces inside component simultaneously, and the upper end can better be contacted with wall, keeps the stability of stair.
The described supercharging stairs antiskid support of increasing expenditure is that the mounting strap position is adjusted round pin and processed a plurality of selenodonts and adjust the expansion link that the position of bayonet socket is adjusted draw-in groove and can only be twitched up and down on two pin of the stair that increase anti-skid support strut or frame, make the expansion link kiss the earth and bear part gravity in certain scope by the position of adjusting position adjustment round pin selenodont adjustment bayonet socket in position adjustment draw-in groove on expansion link, foot of stairs can not vertically be descended and the upper end of stair can be contacted with wall all the time, improving the stability of stair.
The described supercharging stairs antiskid support of increasing expenditure be increase the strong point beyond the touchdown point of the foot of stairs that increases anti-skid support strut or frame, can freely rotate but the outside restricted support bar of maximum rotated position or frame, foot of stairs is unsettled in use to make stair, and when stair outwards do not slide and support bar or frame jointly support gravity, foot of stairs can not vertically be descended and the upper end of stair can be contacted with wall all the time, improving the stability of stair.
The described supercharging stairs antiskid support of increasing expenditure is with ratchet mechanism and rope, chain or rack combination; Or merge rotation one by one with nut and screw rod group; Or make up with screw rod and cone tooth; Or the length adjustment device that forms with chain or rope and screw rod; Or form with twin-screw and connecting rod in the middle of the length adjustment device that is hinged; Or form with twin-screw and connecting rod in the middle of with connector, rope, chain or two connectors through hinged combined connection component and the length adjustment device that is hinged; Or the length adjustment device that forms with rope (being advisable with steel cable), iron chains and with locking device or stopping means manually or automatically carries out stepless adjustment to the angle on support bar or frame (being advisable with elastic steel sheet) and ground, make support bar or frame close proximity to ground and bear certain gravity, make stair become large to the mass action power angle on ground, that normal pressure becomes is large, horizontal component diminishes and stop stair to slide.
The described supercharging stairs antiskid support of increasing expenditure is to increase on the one hand the contact area of stair upper end and wall in the stair upper end installation slipmat that increases anti-skid support strut or frame, increase on the other hand the friction factor of stair and between the walls, increase to a certain extent the frictional resistance of stair upper end and between the walls, reduce trend and the outside component of level of stair down sliding.
The described supercharging stairs antiskid support of increasing expenditure is to connect in the rear end of the support bar (being advisable with elastic steel sheet) of the stair that increase the anti-skid support strut channel-section steel that overlaps certain-length with support bar with round pin again, when using stair, support bar be connected stretching with channel-section steel and locate stress, making the stowing property of support bar better with the bending that is connected of channel-section steel support bar when not using stair.
the described supercharging stairs antiskid support of increasing expenditure is to increase lever on original basis take elastic steel sheet as support bar again, rope, chain or tooth bar, and make tightening system with ratchet mechanism or with the position adjustment draw-in groove of position adjustment round pin, when using stair, first with the lever pressurized or with rope, it is suitable (or minimum that chain or tooth bar are tightened to, or the shortest) position makes support bar generation elastic deformation and possesses certain initial pressure, or elastic steel sheet [18] (or elastic steel sheet [7]) is had after certain initial pressure rope, chain or lever are fixedly connected with elastic steel sheet, make the supporting structure of increase simpler, reduce support bar elastically-deformable degree occurs under Action of Gravity Field, even make on the support bar after distortion and after the people, deformation does not occur, improve the stability of anti-skidding stair.
The beneficial effects of the utility model are: 1, make common stair in the situation that comfortable when keeping smaller angle to guarantee to go upstairs, realize antiskid function, improved safety and convenience that common stair use, can reduce the generation of many contingencies.
2, its is simple in structure, easy to use, increases necessary support bar and guiding mechanism or tensioning mechanism and get final product on the basis of existing stair.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing
Fig. 1 is the structural representation of the utility model embodiment 1
Fig. 2 is the structural representation of the utility model embodiment 1 position adjustment draw-in groove
Fig. 3 is the structural representation of the utility model embodiment 2
Fig. 4 is the structural representation of the utility model embodiment 2
Fig. 5 is the syndeton schematic diagram of the utility model embodiment 6 elastic steel sheets and channel-section steel
Fig. 6 is the elastic steel sheet structural representation that the utility model embodiment 7 can arrange initial pressure
Fig. 7 is the structural representation of the utility model embodiment 3
Fig. 8 is the structural representation of the utility model embodiment 3
Fig. 9 is the structural representation of the utility model embodiment 3
Figure 10 is the structural representation of the utility model embodiment 3
Figure 11 is the structural representation of the utility model embodiment 4
Figure 12 is the structural representation of the utility model embodiment 4
Figure 13 is the structural representation of the utility model embodiment 5
Figure 14 is the structural representation of the utility model embodiment 3
Figure 15 is the structural representation of the utility model embodiment 4 screw position guiding mechanisms
Figure 16 is the structural representation of the utility model embodiment 1 length adjustment device
Figure 17 is the structural representation of the utility model embodiment 4 length adjustment devices
Figure 18 is the structural representation of the utility model embodiment 4 length adjustment devices
Figure 19 is the structural representation of the utility model embodiment 4 length adjustment devices.
The specific embodiment
the supercharging stairs antiskid support of increasing expenditure be according to stair to the active force on ground when the acute angle angle with ground increases, the suffered normal pressure in ground increases and mechanics principle that outside horizontal component will reduce, increase again support bar or frame at common stair and between the walls, the acute angle angle on stair and ground is increased, especially when stair have outside tendency toward sliding or slip certain distance, the active force on stair and ground is mainly born by the support bar or the frame that increase, make the acute angle angle larger, the suffered normal pressure in ground increases and outside horizontal component reduces, stop stair to slide and realize antiskid function.
embodiment 1: in conjunction with Fig. 1, 2, it is to fixedly mount respectively the position adjustment draw-in groove [2] of band position adjustment round pin [8] on two pin of common stair [1] by a side of wall, the position is adjusted a plurality of selenodonts of the upper processing of draw-in groove [2] and is adjusted bayonet socket [16], adjust the outside of bayonet socket [16] at selenodont a pin [11] is installed, Compress Spring [10] is installed between the outside pin [12] of pin [11] and position adjustment draw-in groove [2] makes pin [11] be close to all the time outside prevention position adjustment round pin [8] slippage from selenodont adjustment bayonet socket [16] that selenodont is adjusted bayonet socket [16], the position is adjusted on draw-in groove [2] is fixedly mounted on stair with screw or nail by installing hole [13] pin and is made selenodont adjustment bayonet socket [16] Open Side Down, consist of grade guiding mechanism that has of support bar [3] and ground angle, a side of parados fixedly mounts respectively round pin [9] on two pin of common stair [1], on the both sides of every pin, one end of support bar [3] is arranged on fixedly round pin [9] upper (also can only with a larger-size support bar [3]), the other end freely is arranged on the below of position adjustment round pin [8] and is fixedly connected with elastic steel sheet [7] with screw through connecting hole [4] and (also support bar [3] and elastic steel sheet [7] can be processed into integral body, support bar [3] and elastic steel sheet [7] the whole piece metal that also usable intensity is suitable, wood, the bamboo wood material replaces), make support bar [3] can adjust in the position below of round pin [8] freely up and down, fixedly mount slipmat [6] to increase the friction factor on elastic steel sheet [7] and ground in the below of elastic steel sheet [7], connect with screw through connecting hole [4] with connecting rod [5] between two elastic steel sheets [7], improve the stability of elastic steel sheet [7].when using stair, elastic steel sheet [7] is placed on the ground of stair and between the walls, and will adjust round pin [8] and be pressed downwardly onto suitable position and make support bar [3] and ground produce suitable angle, make slipmat [6] also play certain supporting role by close proximity to ground, after people's stairs, stair to the active force on ground no longer only between foot of stairs and ground, elastic steel sheet [7] also will produce larger support force, stair are increased the acute angle angle of ground mass action power, the outside component of level is reduced, after the active force angle of stair increases simultaneously, the active force of stair and between the walls will reduce, make more Action of Gravity Field on the fulcrum of the pin of stair and increase, stair are increased and the frictional resistance increase the normal pressure on ground, stair are difficult to slide under the effect of larger frictional resistance and the less outside component of level, when stair [1] when tendency toward sliding is arranged, the acute angle on support bar [3] and ground has to increase and the pin of stair is promoted and reduces foot of stairs directly to the active force on the ground trend of built on stilts even, because stoping the pin of stair [1] to a certain extent, gravity promotes again, make elastic steel sheet [7] that deformation occur and the distance of contacting to earth between fulcrum of contact to earth fulcrum and stair [1] is increased, the upper end of stair [1] can move down certain distance makes the acute angle angle of stair [1] less, the pin of stair [1] will reduce the active force on ground built on stilts even, make stair more or all born by the support bar [3] and the elastic steel sheet [7] that increase to the active force on ground, make stair larger to the mass action power angle on ground, normal pressure is larger, horizontal component is less and stop stair to slide, keep proper angle to guarantee that the stair climbing comfortableness realizes antiskid function simultaneously and reduces the generation of contingency at stair like this.When not using stair, can forward support bar [3] and elastic steel sheet [7] to opposite side and make the stowing property of anti-skidding stair better.
In the present embodiment, a side of parados on two pin that draw-in groove [2] be fixedly mounted on stair [1] is adjusted in the position that also the band position can be adjusted round pin [8], and makes selenodont adjust the opening upwards of bayonet socket [16]; Round pin [9] is fixedly mounted on two pin of stair [1] side by wall.To adjust round pin [8] and upwards lift to suitable position and make support bar [3] and ground produce suitable angle when using stair, and make the slipmat [6] can close proximity to ground and certain supporting role.
In the present embodiment, also the Connection Block [56] at the length adjustment device two ends that are comprised of chain [57] and cleek [58] shown in Figure 16 can be fixedly mounted on respectively on stair [1] and support bar [3], opening part mounting spring sheet (or elastic device) [59] at cleek [58] stops chain [57] slippage from cleek [58], cleek [58] does not wait with the integral multiple with two or more and total spacing and single chain ring length and is advisable, and with increase, length is had the regulation stall of grade adjusting device.
In the present embodiment, also the position can be adjusted round pin [8] and position and adjust draw-in groove [2] with round pin [9] replacement that is fixedly mounted on [1] two pin of stair, support bar [3] and the angle on ground are fixed, make the structure of anti-skidding stair simpler.But this moment, anti-skidding stair can only use in certain angular range, had limited the angle excursion of stair [1].
Embodiment 2: in conjunction with Fig. 3, it is to fixedly mount respectively the position adjustment draw-in groove [2] of the described band of embodiment 1 position adjustment round pin [8] on two posts of common stair [1] by a side of wall, and make selenodont adjust the opening upwards of bayonet socket [16], consist of grade guiding mechanism that has of elastic steel sheet [18] and ground angle; A side by wall on two pin of common stair [1] fixedly mounts round pin [9] with holder [20]; One end of elastic steel sheet [18] (elastic steel sheet [18] the whole piece metal that also usable intensity is suitable, wood, bamboo wood material replace) is adjusted round pin [8] with the position and is connected, and the other end is installed slipmat [6] contacts to increase elastic steel sheet [7] and ground with ground friction factor; One end of connecting rod [19] is connected with round pin [9], and the other end is connected with screw or round pin through connecting hole [4] with the middle and lower part of elastic steel sheet [18]; Connect with screw through connecting hole [4] with connecting rod [5] between two elastic steel sheets [18], improve the stability of elastic steel sheet.When using stair with slipmat [6] kiss the earth of elastic steel sheet [18] front end, and will adjust round pin [8] and upwards lift to suitable position and make elastic steel sheet [18] and ground produce suitable angle, make slipmat [6] also play certain supporting role by close proximity to ground, stair are increased the acute angle angle of ground mass action power, the outside component of level is reduced, stair are increased and the frictional resistance increase the normal pressure on ground, realize the antiskid function of stair.
In conjunction with Fig. 4, in the present embodiment, also the position can be adjusted draw-in groove [2] and be arranged between connecting rod [19] and foot of stairs and make opening that selenodont adjusts bayonet socket [16] to the direction that leans against wall (namely outside), be connected with adjustment round pin [8] between connecting rod [19] and position adjustment draw-in groove [2]; And the end that elastic steel sheet [18] is connected with newel is with holder [20] fixed installation, and the acute angle angle on elastic steel sheet [18] and ground is reduced, and makes that elastic steel sheet [18] is stressed only produces the pulling force effect afterwards to connecting rod [19]; Also the acute angle angle of elastic steel sheet [18] with ground can be increased simultaneously, make that elastic steel sheet [18] is stressed only produces thrust afterwards to connecting rod [19], the selenodont that needs this moment the position is adjusted draw-in groove [2] is adjusted the opening of bayonet socket [16] to the direction (namely inwardly) by wall.When using stair with slipmat [6] kiss the earth of elastic steel sheet [18] front end, and will adjust round pin [8] and outwards move suitable position to and make elastic steel sheet [18] and ground produce suitable angle, make slipmat [6] also play certain supporting role by close proximity to ground, stair are increased the acute angle angle of ground force, the outside component of level is reduced, stair are increased and the frictional resistance increase the normal pressure on ground, realize the antiskid function of stair.
In the present embodiment, also the Connection Block [56] at the described length adjustment device shown in Figure 16 of embodiment 1 two ends can be fixedly mounted on respectively on stair [1] and elastic steel sheet [18], or be arranged on respectively on stair [1] and connecting rod [19], consist of grade guiding mechanism that has of elastic steel sheet [18] and ground angle.
In the present embodiment, also the position can be adjusted round pin [8] and position and adjust draw-in groove [2] round pin [9] replacement that is fixedly mounted on [1] two pin of stair, elastic steel sheet [18] and the angle on ground are fixed, when elastic steel sheet [18] only produces pulling force to connecting rod [19], the rope of the available fixed length of connecting rod [19] replaces, and makes the structure of anti-skidding stair simpler.But this moment, anti-skidding stair can only use in certain angular range, had limited the angle excursion of stair [1].
Embodiment 3: in conjunction with Fig. 7, it is on the basis of previous embodiment, in two underfooting of stair [1], an inclined-plane gripper shoe [37] be installed and be connected with support bar [3] and can rotate by connecting rod [36], the angle of inclined-plane gripper shoe [37] is to equate or smaller being advisable with the angle of stair.When using stair, the pin of stair [1] is put on inclined-plane gripper shoe [37], when people's stairs, reduce to a certain extent the distance that stair move down, and foot of stairs can only be glided along the inclined-plane of inclined-plane gripper shoe [37] and stop and vertically move down, keep the whole angle constant upper end of stair that makes of stair can contact with wall all the time, improve the stability of stair, prevent from when people's stairs leaving wall and affecting stability because foot of stairs vertically moves down the upper end that makes stair.When occuring to slide, the acute angle on elastic steel sheet [7] (or elastic steel sheet [18]) and ground increases and the pin of stair is promoted and reduces foot of stairs and directly the active force of inclined-plane gripper shoe [37] is even left inclined-plane gripper shoe [37], make stair more or all born by the elastic steel sheet [7] (or elastic steel sheet [18]) that increases to the active force on ground, make stair larger to the mass action power angle on ground, normal pressure is larger, horizontal component is less and the slip of prevention stair.
In conjunction with Fig. 8, in the present embodiment, also can increase by a short ladder [25] in the bottom of stair [1] and with baffle plate [26] control, short ladder [25] can only be twitched up and down.When using stair, to ride when low step (being that center of gravity is outside the fulcrum of increase) on the cross-arm at short ladder, this moment, gravity was mainly born by short ladder [25], and stair [1] only bear short ladder [25] still can well contact with wall the upper end to its inside pressure; Ride on the cross-arm of stair [1] in higher step (be center of gravity increasing fulcrum in) time, gravity is mainly born by the elastic steel sheet [18] (or elastic steel sheet [7]) that stair [1] increase, this moment, stair [1] can only glide along the angle of short ladder even move down also, gravity also can produce inside component simultaneously, the upper end can better be contacted with wall, keep the stability of stair.
In conjunction with Fig. 9, in the present embodiment, also can adjust draw-in groove [2] in the installation site on two pin of stair [1], and Open Side Down to make selenodont adjust bayonet socket [16], adjust the expansion link [28] of movable mounting strap position adjustment round pin [8] between draw-in groove [2] and foot of stairs in the position, end installation site retention tab [27] at foot of stairs can only be twitched expansion link [28] up and down, connects with connecting rod [29] between two expansion links [28].First with elastic steel sheet front end slipmat [6] close proximity to ground that increases, then with pin or hand, connecting rod [29] is made expansion link [28] kiss the earth to pressing down when using stair, stop foot of stairs vertically to descend under action of gravitation, improve the stability of stair.When people's stairs and when outwards not sliding, gravity is born by the elastic steel sheet [18] (or elastic steel sheet [7]) and the expansion link [28] that increase; When occuring to slide, the acute angle on elastic steel sheet [18] (or elastic steel sheet [7]) and ground increases and the pin of stair is promoted, make expansion link [28] reduce even built on stilts to the active force on ground, make stair more or all born by the elastic steel sheet [18] (or elastic steel sheet [7]) that increases to the active force on ground, make stair larger to the mass action power angle on ground, normal pressure is larger, horizontal component is less and the slip of prevention stair.
in conjunction with Figure 10, in the present embodiment, also the pin of stair [1] can be processed into the inside inclined-plane of opening [34], increase again the band inclined-plane feet [35] complementary with foot of stairs inclined-plane [34] below foot of stairs, with screw or nail be fixedly mounted on feet [35] on through connecting hole [4] end of connecting rod [33], the other end is arranged on foot of stairs through position retention tab [31], connecting rod [33] can be twitched up and down, in the upper end of connecting rod [33], spacer [30] is installed and is prevented connecting rod [33] slippage from position retention tab [31], connecting rod [33] is there to be certain elasticity to be advisable.When people's stairs, foot of stairs can only glide along the inclined-plane of feet [35] and can not vertically move down, keep the whole angle constant upper end of stair [1] that makes of stair [1] can contact with wall all the time, improve the stability of stair, prevent from when people's stairs leaving wall and affecting stability because foot of stairs vertically moves down the upper end that makes stair [1].When occuring to slide, the acute angle on elastic steel sheet and ground increases and the pin of stair is promoted and reduces foot of stairs and directly the active force of feet [35] is even left feet [35], make stair [1] more or all born by the elastic steel sheet [18] (or elastic steel sheet [7]) that increases to the active force on ground, make stair larger to the mass action power angle on ground, normal pressure is larger, horizontal component is less and the slip of prevention stair.
In conjunction with Figure 14, in the present embodiment, also can also can freely rotate at the upper support bar [14] of fulcrum outside foot of stairs that contact to earth of installing of support bar [3], locator card [50] is installed is simultaneously controlled the outside maximum rotated position of support bar [14]; Also locator card [50] and support bar [14] can be arranged on foot of stairs suitable positions such as (or) elastic steel sheets.When using stair with elastic steel sheet front end slipmat [6] close proximity to ground that increases, support bar [14] is put into outside maximum rotated position, make foot of stairs unsettled, when people's stairs and when outwards not sliding, gravity is born by the elastic steel sheet [7] (or elastic steel sheet [18]) and the support bar [14] that increase, stop foot of stairs vertically to descend under action of gravitation, improve the stability of stair; When occuring to slide, the acute angle on elastic steel sheet and ground increases and the pin of stair is promoted, make support bar [14] reduce even inwardly rotation and not bear gravity the active force on ground, make stair more or all born by the elastic steel sheet [7] (or elastic steel sheet [18]) that increases to the active force on ground, make stair larger to the mass action power angle on ground, normal pressure is larger, horizontal component is less and the slip of prevention stair.
In conjunction with Figure 12, in the present embodiment, also the stepless adjusting mechanism of the compositions such as the ratchet mechanism of previous embodiment, chain [40], gear [47], power transmission shaft [38] can be removed to control the end that elastic steel sheet [18] (or support bar [3]) is connected with stair, and still use connecting rod [19] to be connected between elastic steel sheet [18] and stair [1].Chain this moment [40] also available tooth bar replaces.More reliable for the stability that makes stair, still available position adjustment draw-in groove [2] comes the control position to adjust the each downward displacement of round pin [8], guarantees still can better be controlled in the motion of ratchet rear elastic steel sheet out of control.
In the present embodiment, also available rope replaces chain [40] in Figure 11 and Figure 12, and an end of rope is connected to the middle outer end of elastic steel sheet [18], or is connected to the end that elastic steel sheet [18] (or support bar [3]) is connected with stair [1]; It is upper and save gear [47] that the other end directly is fixed on power transmission shaft [38], and rotating drive shaft [38] and rope is tightened to correct position makes the slipmat [6] can close proximity to ground and bear certain gravity.
In conjunction with Figure 15, in the present embodiment, also available screw rod [53] replaces chain [40]; The cone tooth [54] that the silk mouth is arranged in the upper suit of screw rod [53], equal mounting and fixing bracket [55] up and down at cone tooth [54] can not move up and down cone tooth [54], bore tooth [52] and form the screw position guiding mechanism with cone tooth [54] engagement in the upper fixed installation of power transmission shaft [51] and replace ratchet mechanism, rotate and then make screw rod [53] move up and down to adjust the angle on elastic steel sheet [18] (or support bar [3]) and ground by rotating drive shaft [51] band mantle tooth [52] and [54], making slipmat [6] energy close proximity to ground.In order to reduce costs, also can make cone tooth [54] into nut, power transmission shaft [51] and cone tooth [52] are saved, rotating screw cap [54] makes screw rod [53] move up and down to adjust the angle on elastic steel sheet [18] (or support bar [3]) and ground one by one; Or nut [54] is fixing, be connected with the loose joint that can rotate between screw rod [53] and elastic steel sheet [18] (or support bar [3]), rotating screw bolt [53] makes screw rod [53] move up and down to adjust the angle on elastic steel sheet [18] (or support bar [3]) and ground one by one, makes slipmat [6] energy close proximity to ground.
In conjunction with Figure 17, in the present embodiment, also the two ends Connection Block [56] of the length adjustment device that forms of available chain [57] and twin-screw [53] (also available single screw rod [53]) respectively with stair [1] on fixed support be connected 18 with elastic steel sheet] (or support bar [3]) be connected, or respectively with stair [1] on fixed support be connected 19 with connecting rod] be connected, consist of the stepless adjusting mechanism of elastic steel sheet [18] (or support bar [3]) and ground angle.The screw rod [53] that is connected with chain [57] connects device with the cleek [58] that prevention chain [57] slippage is arranged with opening part and is advisable, in order to chain [57], the length of length adjustment device is had level adjustment on a large scale, be rotationally connected bar [61] and drive nut [60] and rotate the length of length adjustment device is carried out stepless adjustment; Screw rod [53] also available fixed connecting base [56] is connected (the available rope of chain this moment [57] replaces) with chain [57], only with screw rod [53], the length of length adjustment device is carried out stepless adjustment.
In conjunction with Figure 18, in the present embodiment, the two ends Connection Block [56] of the length adjustment device that the twin-screw [53] that also connects with hinge [63] in the middle of available connecting rod [61] forms respectively with stair [1] on fixed support be connected 18 with elastic steel sheet] (or support bar [3]) be connected, or respectively with stair [1] on fixed support be connected 19 with connecting rod] be connected, consist of the stepless adjusting mechanism of elastic steel sheet [18] (or support bar [3]) and ground angle.When using stair [1], connecting rod [61] is stretching, be rotationally connected bar [61] drive nut [60] rotation the length of length adjustment device is carried out stepless adjustment; When not using stair [1], connecting rod [61] is located bending at hinge [63], make the stowing property of braced structures of increase better.
In conjunction with Figure 19, in the present embodiment, the two ends Connection Block [56] of the length adjustment device that connector [62] is also arranged in the middle of available connecting rod [61] and form with the twin-screw [53] that hinge [63] connects respectively with stair [1] on fixed support be connected 18 with elastic steel sheet] (or support bar [3]) be connected, or respectively with stair [1] on fixed support be connected 19 with connecting rod] be connected, consist of the stepless adjusting mechanism of elastic steel sheet [18] (or support bar [3]) and ground angle.When not using stair [1], connecting rod [61] is located bending at hinge [63], when increase connector [62] makes the braced structures of increase asymmetric in the position of two screw rods [53] when collection, stowing property is better.Connector [62] is available forms and uses by two connectors [62] the combined connection component replacement that hinge [63] connects, and also available chain [57], rope or chain [40] replace.
In the present embodiment, also an end of rope (being advisable with steel cable), iron chains can be fixedly mounted on the middle lower end of support bar [3] (or elastic steel sheet [18] or elastic steel sheet [7]), the other end is arranged on locking device or stopping means manually or automatically (stopping means also available nail replaces at the iron nail on stair [1] pin) and is fixedly mounted on fixed bearing on stair [1] pin makes length adjustment device.Can realize the stepless adjustment of support bar to the ground angle by the length of adjusting rope between support bar and foot of stairs or iron chains, when the fixed bearing on foot of stairs during for locking device manually or automatically, with locking device, rope or iron chains be locked and get final product; When the fixed bearing on foot of stairs was stopping means or iron nail, stopping means can only stop rope or iron chains to move up and down and without locking function, therefore need rope or iron chains are tied up to the length that locks rope or iron chains on foot of stairs.Also or just an end of rope, iron chains is fixedly mounted on the end that support bar [3] (or elastic steel sheet [18]) is connected with stair [1], is fixedly mounted on suitable position on stair [1] post with locking device or stopping means manually or automatically.
embodiment 7, in conjunction with Fig. 6, it is on the basis of previous embodiment, on the basis of original elastic steel sheet [18] (or elastic steel sheet [7]), front end at elastic steel sheet [18] (or elastic steel sheet [7]) increases fixed support [22], increase support [23] at the middle part, afterbody increase the position adjust draw-in groove [2] (position adjust draw-in groove [2] also available other suitable lock mechanism replace) and Open Side Down to make selenodont adjust bayonet socket [16], one end of lever [24] is connected with round pin or screw and can rotates through pin-and-hole [4] with fixed support [22], the middle part is placed on support [23], the other end is adjusted round pin [8] through the position and is arranged in position adjustment draw-in groove [2].When not using stair at ordinary times, round pin [8] is adjusted in the position be placed on higher position in position adjustment draw-in groove [2], so that elastic steel sheet [18] (or elastic steel sheet [7]) maintenance elasticity (; For the supporting structure that makes increase is simpler, be fixedly connected with lever [24] after elastic steel sheet [18] (or elastic steel sheet [7]) can being had certain initial pressure).When using stair, first the position being adjusted round pin [8] suitable to pressing to (or minimum) position makes elastic steel sheet [18] (or elastic steel sheet [7]) elastic deformation occur and possess certain initial pressure, reduce when people's stairs so gravity makes elastic steel sheet [18] (or elastic steel sheet [7]) that elastically-deformable degree occur, after even making the upper people of elastic steel sheet [18] (or elastic steel sheet [7]) after distortion, deformation not occuring, improves the stability of anti-skidding stair.
In the present embodiment, also available rope, chain or tooth bar replace lever [24], replace the position to adjust draw-in groove [2] with ratchet mechanism or hinge, and visual concrete condition are saved support [23].When not using stair at ordinary times, rope, chain or tooth bar are loosened so that elastic steel sheet [18] (or elastic steel sheet [7]) keep elasticity (; For the supporting structure that makes increase is simpler, be fixedly connected with rope, chain after elastic steel sheet [18] (or elastic steel sheet [7]) can being had certain initial pressure).When using stair, first rotating ratchet mechanism or hinge are tightened to suitable (or the shortest) position with rope, chain or tooth bar makes elastic steel sheet [18] (or elastic steel sheet [7]) elastic deformation occur and possess certain initial pressure, reduce elastic steel sheet [18] (or elastic steel sheet [7]) elastically-deformable degree occurs under Action of Gravity Field, after even making the upper people of elastic steel sheet [18] (or elastic steel sheet [7]) after distortion, deformation not occuring, improves the stability of anti-skidding stair.
Claims (10)
1. the supercharging stairs antiskid support of increasing expenditure is to increase stair to the acute angle angle of ground mass action power, increase the suffered normal pressure in ground and reduce outside horizontal component, it is characterized in that increasing support bar or frame at common stair and between the walls, and the angle on support bar or frame and ground is kept stable or adjusts, make support bar or the energy of the slipmat on the frame close proximity to ground of increase, increase stair to the acute angle angle of ground mass action power, gravity is more acted on the support bar or frame of the pin of stair and increase, increase stair the normal pressure on ground is increased sliding-frictional resistance, reduce simultaneously active force and the outside component of level of stair upper end and between the walls, realize antiskid function.
2. the supercharging stairs antiskid support of increasing expenditure according to claim 1 is characterized in that with band position adjustment round pin [8] and processes the position adjustment draw-in groove [2] that a plurality of selenodonts are adjusted bayonet sockets [16]; Or stop chain [57] slippage and one or more are arranged and adjustment support bar that length adjustment device that cleek [58] that the integral multiple of total spacing and single chain ring length does not wait and chain [57] form has grade or the angle on frame and ground with opening part mounting spring sheet or elastic device [59], make slipmat [6] the energy close proximity to ground on support bar or frame realize the stairs antiskid function.
3. the supercharging stairs antiskid support of increasing expenditure according to claim 1 is characterized in that the support bar that will increase or the stress point of frame on stair are all fixing and can not adjust; Or support bar or frame to connecting rod [19] when only producing pulling force the rope with regular length the distance of the fulcrum that contacts to earth of contact to earth fulcrum and the foot of stairs of support bar or frame is fixed, support bar or frame are fixed with the angle on ground and support bar or frame are contacted with ground and realize antiskid function.
4. the supercharging stairs antiskid support of increasing expenditure according to claim 1 is characterized in that with ratchet mechanism and rope, chain or rack combination; Or merge rotation one by one with nut and screw rod group; Or make up with screw rod and cone tooth; Or the length adjustment device that forms with chain [57] or rope and screw rod [53]; Or the length adjustment device that forms with twin-screw [53] and connecting rod [61] centre use hinge [63] connects; Or form with twin-screw [53] and connecting rod [61] in the middle of the combined connection component that connects through hinge [63] with connector [62], chain [57], rope, chain [40] or two connectors [62] and the length adjustment device that connects with hinge [63]; Or the rope of being advisable in order to steel cable, iron chains and the length adjustment device that forms with locking device or stopping means manually or automatically, stepless adjustment support bar or the angle on frame and ground make slipmat [6] close proximity to ground on support bar or frame and realize antiskid function.
5. according to claim 1 and 2 or the 3 or 4 described supercharging stairs antiskid supports of increasing expenditure is characterized in that increasing lever, rope, chain or tooth bar again on the basis of original elastic supporting bar, and make tightening system with the position adjustment draw-in groove [2] of ratchet mechanism or band position adjustment round pin [8] and before using stair, lever, rope, chain or the tooth bar that increases tightened up; Or after elastic steel sheet [18] or elastic steel sheet [7] are had certain initial pressure, rope, chain or lever are fixedly connected with elastic steel sheet, make support bar generation elastic deformation and possess certain initial pressure, reduce support bar elastically-deformable degree occurs under Action of Gravity Field, even make on the support bar after distortion after the people, deformation not to occur, improve the stability of anti-skidding stair.
6. according to claim 1 and 2 or the 3 or 4 described supercharging stairs antiskid supports of increasing expenditure is characterized in that installing in two underfooting of the stair that increase anti-skid support strut or frame [1] that angles equate with the angle of stair or smaller inclined-plane gripper shoe [37] also can be rotated; Or the pin that will increase the stair [1] of anti-skid support strut or frame is processed into the inside inclined-plane of opening [34], increase again band with the inclined-plane feet [35] of foot of stairs inclined-plane [34] complementation below foot of stairs and be connected with the connecting rod [33] that can twitch up and down, make foot of stairs glide along the inclined-plane of inclined-plane feet [35] or inclined-plane gripper shoe [37] and can not vertically move down, the upper end of stair can be contacted with wall all the time, improve the stability of stair.
7. according to claim 1 and 2 or the 3 or 4 described supercharging stairs antiskid supports of increasing expenditure is characterized in that increasing by the short ladder [25] that can twitch up and down in the bottom of the stair that increase anti-skid support strut or frame [1], be on the cross-arm of riding outside the fulcrum that increasing of center of gravity the time at short ladder at low step, gravity is mainly born by short ladder [25], and main staircase [1] only bears short ladder [25] to its inside pressure and the upper end still can well be contacted with wall; Ride on the cross-arm of stair [1] in time in the higher step fulcrum that to be center of gravity increasing, gravity is mainly born by support bar or frame that main staircase [1] increases, gravity produces inside component simultaneously, and the upper end can better be contacted with wall, keeps the stability of stair.
According to claim 1 and 2 or the 3 or 4 described supercharging stairs antiskid supports of increasing expenditure it is characterized in that increasing the strong point beyond the touchdown point of the foot of stairs that increases anti-skid support strut or frame, can freely rotate but the outside restricted support bar of maximum rotated position [14], foot of stairs is unsettled in use to make stair, and when stair outwards do not slide and support bar or frame jointly support gravity, foot of stairs can not vertically be descended and the upper end of stair can be contacted with wall all the time, improving the stability of stair.
9. according to claim 1 and 2 or the 3 or 4 described supercharging stairs antiskid supports of increasing expenditure is characterized in that the mounting strap position is adjusted round pin [8] and processed a plurality of selenodonts and adjust the expansion link [28] that the position of bayonet socket [16] is adjusted draw-in groove [2] and can only be twitched up and down on two pin of the stair that increase anti-skid support strut or frame [1], the position of adjusting bayonet socket [16] by adjusting the upper position adjustment round pin of expansion link [28] [8] selenodont in position adjustment draw-in groove [2] makes expansion link [28] kiss the earth and bear part gravity in certain scope, foot of stairs can not vertically be descended and the upper end of stair can be contacted with wall all the time, improve the stability of stair.
10. its feature of supercharging stairs antiskid support of increasing expenditure according to claim 1 increases the contact area of stair upper end and wall on the one hand in the stair upper end installation slipmat [15] that increase anti-skid support strut or frame, increase on the other hand the friction factor of stair and between the walls, increase to a certain extent the frictional resistance of stair upper end and between the walls, reduce trend and the outside component of level of stair down sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010463 CN203270979U (en) | 2013-01-09 | 2013-01-09 | Antiskid bracket for improving supporting and pressure of stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010463 CN203270979U (en) | 2013-01-09 | 2013-01-09 | Antiskid bracket for improving supporting and pressure of stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203270979U true CN203270979U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010463 Expired - Fee Related CN203270979U (en) | 2013-01-09 | 2013-01-09 | Antiskid bracket for improving supporting and pressure of stair |
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| Country | Link |
|---|---|
| CN (1) | CN203270979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724464A (en) * | 2015-03-25 | 2015-06-24 | 许昌远方工贸有限公司 | Auxiliary supporting rod for dumper conveyor |
-
2013
- 2013-01-09 CN CN 201320010463 patent/CN203270979U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724464A (en) * | 2015-03-25 | 2015-06-24 | 许昌远方工贸有限公司 | Auxiliary supporting rod for dumper conveyor |
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