CN103206078B

CN103206078B - Scaffold upright tube

Info

Publication number: CN103206078B
Application number: CN201310166364.2A
Authority: CN
Inventors: 朱新伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2015-07-22
Anticipated expiration: 2033-05-08
Also published as: CN103206078A

Abstract

The invention relates to the field of scaffolds for buildings, and particularly relates to a scaffold upright tube. The scaffold upright tube comprises a vertical steel pipe and a fastener, wherein the fastener comprises a sliding sleeve which is sleeved on the vertical steel pipe; at least one pressing assembly is arranged on the outer side of the sliding sleeve and comprises two hinged supports; one of each two hinged supports is hinged with a pressure cover and the other one of the two hinged supports is hinged with a hasp; the hinge axles of each two hinged supports are parallel to each other and in spatial square crossing with the center line of the sliding sleeve; the upper parts of the two hinged supports of each pressing assembly define a containing opening for containing a horizontal steel pipe, and the lower parts of the hinged supports define an expanding block mounting groove; an opening is arranged between the two hinged supports of each pressing assembly on the wall of the sliding sleeve; an expanding sliding block is arranged in the expanding block mounting groove in an up-down anti-off manner; and the vertical steel pipe is provided with corresponding limit structures at the two ends of each fastener. The scaffold upright tube solves the problem that the constructing and dismantling efficiency of a scaffold is low, and the safety performance of the scaffold is improved.

Description

A kind of scaffold upright rod

Technical field

The present invention relates to building scaffold field, particularly a kind of scaffold upright rod that can be used in double-pole scaffold.

Background technology

Scaffold is very common on building site of today, as two main composition parts of scaffold, the quality of scaffolding steel pipe and fastener directly affects the reliability of scaffold, and the convenience of fastener then directly affects the efficiency building and dismantle scaffold.In actual application, the steel pipe of scaffold is mainly divided into three classes according to its difference acted on, vertical steel pipe, horizontal steel tube and diagonal brace steel pipe.Wherein vertical steel pipe is used by the vertical rod as scaffold, it mainly plays the effect of support and heightening foot hand cradle main body, horizontal steel tube is used for building corresponding platform often, and it sometimes also plays and supports vertical steel pipe vertical steel pipe to be connected the effect for general frame.

Above-mentioned horizontal steel tube is connected with the binding between vertical steel pipe and realizes by right-angled intersection fastener, right-angled intersection fastener is also known as cruciform fastening for falsework or cross buckle, current right-angled intersection fastener comprises pedestal mostly, the connecting bolt being hinged on the gland on pedestal and being hinged on pedestal, wherein there is inside pedestal the cambered surface with the outline adaptation of vertical steel pipe, gland is divided into upper press cover and side pressure lid and they are equipped with the bayonet socket of U-shaped away from one end of jointed shaft, connecting bolt is with gland one_to_one corresponding and be oppositely arranged with corresponding gland, during use, by the cooperation of side pressure lid and corresponding connecting bolt by pedestal banding on vertical steel pipe, then horizontal steel tube is fixed by upper press cover with coordinating of corresponding connecting bolt, thus cross one another two of scaffold steel pipes are fixed together.From its operating principle, above-mentioned cross buckle needs to operate two glands at least respectively in use, i.e. upper press cover and side pressure lid, therefore inefficiency, in addition, gland pedestal due to above-mentioned fastener is operationally fixed by connecting bolt, this further reduces the operating efficiency of staff, namely building and removal efficiency scaffold is reduced, add the labour intensity of staff, especially it should be noted that, the working environment of fastener is mostly more severe, once connecting bolt gets rusty or stained, then can make troubles to further the dismounting of fastener, this in fact also have impact on the application life of fastener, add the maintenance cost to it.

In order to solve the problem of the dismounting inconvenience brought by the connecting bolt of fastener, application number be 2012202780806 and application number be 932388701 Chinese patent individually disclose the fixing scaffold clasp of two kinds of different voussoirs, the two is all that form by arranging voussoir between the lateral surface and the nut of connecting bolt of fastener gland carrys out swelling stationary gland, in such cases, connecting bolt in substance form a hasp, only to need in use to be ploughed under in the bayonet socket of corresponding gland and with voussoir swelling, thus just eliminate screwing and unscrewing operation the nut of connecting bolt, to a certain extent for the raising of efficiency of construction brings benefit, but above-mentioned fastener still needs to operate two jacket glands respectively, the voussoir of connecting bolt and correspondence, still there is unhandy problem, in addition, because voussoir is between gland and the gland of connecting bolt, therefore on the one hand very easily owing to being come off by touching by mistake, there is certain potential safety hazard, also the loss of voussoir is made to become inevitable problem on the other hand.

Summary of the invention

The object of the present invention is to provide a kind of scaffold upright rod of handled easily, build the problem low with removal efficiency with what solve scaffold, improve the security performance of scaffold.

In order to solve the problem, scaffold upright rod is by the following technical solutions: scaffold upright rod, comprise vertical steel pipe, vertical steel pipe is equipped with at least one fastener, fastener comprises the sliding sleeve be slidably enclosed within vertical steel pipe, the outside of sliding sleeve is provided with at least one cover and holds down assembly, often the cover axis included along sliding sleeve that holds down assembly is laid in two free bearings on sliding sleeve relatively, one in two free bearings is hinged with gland, another is hinged with for overlapping with gland and compressing the hasp of gland, the hinge axes of these two free bearings is parallel to each other and intersect with the center line spatial vertical of sliding sleeve, in addition, the socket for accommodating horizontal steel tube is surrounded between the top often overlapping two free bearings held down assembly, expansion block mounting groove is surrounded between the bottom of the two, the jacket wall of sliding sleeve is provided with inside and outside penetrating opening often overlapping the position between two free bearings held down assembly, in expansion block mounting groove, upper and lower anticreep is equipped with for the swelling slide block of wedging between this vertical steel pipe and corresponding horizontal steel tube, one end of vertical steel pipe is coaxially fixedly equipped with the male joint of rotary joint style, and the other end is coaxially fixedly equipped with the female joint corresponding with male joint.

Two covers that held down assembly of at least one fastener, two overlap the different both sides place that the free bearing held down assembly is positioned at corresponding sliding sleeve, and their hinge axes spatial vertical is intersected.

Be equipped with the extruding for bearing swelling slide block in described opening and compress the pressed slider of vertical steel pipe, the side of the slide block of swelling dorsad of pressed slider has the cambered surface with the outline adaptation of vertical steel pipe; The side of the described dorsad opening of swelling slide block is provided with the cambered surface with the outline adaptation of corresponding horizontal steel tube.

The groove bottom of expansion block mounting groove be along in the direction of advance of swelling slide block when wedging gradually to the inclined-plane of lopsidedness deviating from swelling slide block, cambered surface on pressed slider is made up of the medial surface of arc-shaped slot set on pressed slider, in two cell walls of described arc-shaped slot swelling slide block in wedging time direction of advance on be positioned at one of front lower than another.

The side towards described opening of swelling slide block is provided with anti-skidding striped, and the bearing of trend of anti-skidding striped is identical with the glide direction of swelling slide block, and pressed slider is provided with the striped be engaged with the anti-skidding striped on swelling slide block.

Swelling slide block is voussoir.

One in the cell wall of expansion block mounting groove and the respective side walls of swelling slide block is provided with guide groove, another is provided with the sliver corresponding with guide groove, described guide groove and sliver matched in clearance also stop swelling slide block to be deviate from from the notch of expansion block mounting groove, and the bulge-structure that swelling slide block is established by its two ends place coordinates with sliding sleeve anticreep on activity direction.

Notch or bottom land inclination gradually to expansion block mounting groove in sliver and the guide groove direction of advance all when the wedging of swelling slide block, the incline direction of the two is identical.

Described swelling slide block is provided with the scale being used to indicate its assembling degree of depth.

Two ends place at each fastener on vertical steel pipe is respectively equipped with corresponding position limiting structure.

Public, female joint separately with its one end towards vertical steel pipe outside for outer end, male joint has protrudes outside steel pipe, for feeling relieved the revolution positioning section coordinated with female joint, the outer end of revolution positioning section is provided with the linkage section of coaxial line with it, the external diameter of linkage section is less than the external diameter of revolution positioning section and its outer end is provided with non-return lock dog, the medial surface of described non-return lock dog and the outer face of revolution positioning section surround circumferencial direction around steel pipe from one end to the bayonet socket that the other end broadens gradually, described female joint is tubular, inner wall surface thereof is provided with for inserting in male joint and be stuck in the block in described bayonet socket after direction initialization rotation.

Male and female joint is plugged in the corresponding end of vertical steel pipe separately and has the coaxial position limiting convex ring arranged respectively, and position limiting convex ring coordinates with the end face block of the respective end of vertical steel pipe, and the position limiting convex ring of female joint is positioned at its outer end place.

Male and female joint is provided with separately the cue mark of the locked position being used to indicate them.

The medial surface of described non-return lock dog is helicoid, and the lateral surface of block is the helicoid with the medial surface complementation of non-return lock dog.

When using this scaffold upright rod to scaffold erecting, can first make to slide over slip on vertical steel pipe and look for position, after finding desired location, horizontal steel tube is radially placed in the socket place between two free bearings, coordinate after horizontal steel tube preliminary latch by hasp with gland, knock swelling slide block from the corresponding end of swelling slide block and just can extrude vertical steel pipe and horizontal steel tube simultaneously, and then the locking realized vertical steel pipe and horizontal steel tube, accordingly, two are adopted to overlap the locking that just can realize two horizontal steel tubes that holds down assembly, first, owing to being adopt the mode of swelling slide block swelling to realize the interlocking between vertical steel pipe and horizontal steel tube, when being subject to the reaction force of the other side, swelling slide block only can become more and more tighter, and vertical steel pipe and horizontal steel tube relative movement can not be made, in addition, because swelling slide block is between vertical steel pipe and horizontal steel tube, under the barrier effect of vertical steel pipe and horizontal steel tube, it is reduced greatly by the possibility touched down, thus the accident avoiding fastener loosens, improve the security performance of fastener, simultaneously, due to described public affairs, the existence of female joint, this horizontal steel tube can realize and being coaxial docking of another horizontal steel tube easily, can be known by the description of the use procedure of above contacting piece, this fastener only needs operation gland in use, then knocks swelling slide block, convenient to operation, thus also improves the convenience of operation fastener.As can be seen here, this scaffold upright rod possesses characteristic easy to use, and what solve scaffold builds the problem low with removal efficiency simultaneously, improves the security performance of scaffold.

Further, pressed slider and the cambered surface on swelling slide block be all in order to increase they separately with the contact area of corresponding steel pipe, improve the fastness of the combination of vertical steel pipe and horizontal steel tube on the one hand, swelling slide block or pressed slider also can be avoided corresponding steel pipe compressive strain on the other hand; The groove bottom of expansion block mounting groove being set to inclined-plane is conveniently to the assembling of swelling slide block, in this case, when compressing the vertical steel pipe in sliding sleeve, the two ends of pressed slider need the degree of depth embedded in opening to be actually not wait, therefore, make in two cell walls of described arc-shaped slot swelling slide block in wedging time direction of advance on be positioned at of front lower than another time, the two ends being conducive to realizing pressed slider do not embed the degree of depth in opening not etc., thus ensure that the area that cambered surface on pressed slider and vertical steel pipe are fitted reaches maximization; Striped on swelling slide block and pressed slider can make the two one integrated mass, cannot mutually swing both ensureing further when mutual jam-packed; Scale on swelling slide block can give operator with instruction, to make operator understand the whether swelling of swelling slide block, in order to avoid wedged dark and damaged corresponding steel pipe (vertical steel pipe or horizontal steel tube); Can voussoir accordingly in groove on sliding sleeve, carry out further swelling with this and fix sliding sleeve, thus prevent from sliding on vertical steel pipe and produce slippage; When needs two vertical steel pipe docking, only need the female joint of the male joint of a wherein vertical steel pipe being inserted on another vertical steel pipe, then one of them vertical steel pipe is rotated along direction initialization, due to the existence of described non-return lock dog and block, two vertical steel pipes just can be joined together after relatively rotating, unless now reverse rotation is again a vertical steel pipe wherein, otherwise they definitely cannot be thrown off; What adopt the fixed form of plug-in mounting to be convenient to realize between vertical steel pipe with male and female joint is coaxial, and position limiting convex ring facilitates the accurate installation to male and female joint; Cue mark is used for providing indication information for operator, puts in place so that operator judges whether male and female joint has spun.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment 1 of scaffold upright rod;

Fig. 2 is the embodiment 1 using state figure of scaffold upright rod;

Fig. 3 be vertical steel pipe in Fig. 2 with two horizontal steel tubes coordinate schematic diagram;

Fig. 4 is vertical steel pipe in Fig. 3 and two horizontal steel tubes stereogram in the locked condition;

Fig. 5 is the assembling schematic diagram of sliding sleeve in Fig. 4 and gland;

Fig. 6 is the stereogram of sliding sleeve in Fig. 2;

Fig. 7 is the first stereogram of the swelling slide block in Fig. 2;

Fig. 8 is the second stereogram of the swelling slide block in Fig. 2;

Fig. 9 is the first stereogram of pressed slider;

Figure 10 is the second stereogram of pressed slider;

The structural representation of the hasp in Figure 11 Fig. 2;

Figure 12 is the structural representation of the male joint in Fig. 1;

Figure 13 is the structural representation of the female joint in Fig. 1;

Figure 14 is the using state figure of the embodiment 2 of scaffold upright rod;

Figure 15 is the stereogram of the fastener in the embodiment 2 of scaffold upright rod;

Figure 16 is the using state figure of the embodiment 3 of scaffold upright rod;

Figure 17 is the stereogram of the embodiment 3 of scaffold upright rod;

Figure 18 is the structural representation of the embodiment 4 of scaffold upright rod.

Detailed description of the invention

The embodiment 1 of scaffold upright rod, as shown in figures 1-13, comprises vertical steel pipe and is assemblied in the fastener on vertical steel pipe.Fastener comprises sliding sleeve 11, sliding sleeve 11 is slidably enclosed within vertical steel pipe 14, in the present embodiment, the outside of sliding sleeve is provided with two covers and holds down assembly, holding down assembly on the one hand for sliding sleeve 11 being locked in the corresponding position of vertical steel pipe 14, being used for vertical steel pipe 14 and horizontal steel tube 18 to fix on the other hand.Two to overlap the structure, function and the principle that hold down assembly all identical for this, therefore hereafter will highlight wherein a set of structure, function and principle held down assembly.

Hold down assembly two free bearings 15 comprising and being positioned at outside sliding sleeve, two free bearings 15 are arranged along the axial relative spacing of sliding sleeve 11, their hinge axes is parallel to each other and intersect with the center line spatial vertical of sliding sleeve 11, namely the hinge axes of free bearing 15 and the center line of sliding sleeve 11 are mutually perpendicular different surface beeline, one of them free bearing is hinged with the gland 16 for level of compression steel pipe, another is hinged with the hasp 17 corresponding with gland 16, in the present embodiment, hasp 17 is T-shaped button, gland 16 is overlapped with hasp 17 by the bayonet socket 101 that its one end away from corresponding free bearing is arranged and coordinates, and the medial surface of gland 16 is the arc surface with the outline adaptation of horizontal steel tube 18, wherein hasp 17 is prior art with the structure of gland 16, it will not go into details herein.In addition, dotted line sign part in the socket 102(figure for accommodating horizontal steel tube is surrounded) between the top of two free bearings, the top of socket 102 is in the circular arc with the outline adaptation of horizontal steel tube 18, meanwhile, dotted line sign part in expansion block mounting groove 103(figure is surrounded) between the bottom of two free bearings, in the present embodiment, suppose in expansion block mounting groove assemble swelling slide block time, swelling slide block is move forward when carrying out swelling action, then the groove bottom of expansion block mounting groove 103 is from back to front gradually to the inclined-plane of lopsidedness deviating from swelling slide block, position on the jacket wall of sliding sleeve 11 between two free bearings is provided with inside and outside penetrating opening 104, opening 104 is just positioned at the bottom land of expansion block mounting groove 103.

Swelling slide block 12 is installed in expansion block mounting groove 103, in opening 104, is equipped with pressed slider 13.In the present embodiment, swelling slide block 12 adopts voussoir, it is thickening gradually from front to back along direction of advance during swelling, in addition, the side of the opening dorsad 104 of swelling slide block 12 has the cambered surface with the outline adaptation of the relevant position of the horizontal steel tube 18 in socket 102, simultaneously, in order to the wedging degree of depth of swelling slide block 12 can be indicated in order to avoid damage scaffolding steel pipe by pressure, swelling slide block 12 is also provided with scale (not shown), in the present embodiment, this scale is located on the side elevation of swelling slide block 12, namely be located on the side relative with the cell wall of expansion block mounting groove 103 of swelling slide block 12, lose to prevent swelling slide block 12, two side elevations of swelling slide block 12 are also provided with sliver 19, the cell wall of expansion block mounting groove 103 is provided with the guide groove 105 corresponding with sliver 19, in the present embodiment, sliver and the guide groove direction of advance all when the wedging of swelling slide block tilts to the bottom land of expansion block mounting groove gradually, sliver 19 and guide groove 105 are worked in coordination and swelling slide block 12 can be stoped to deviate from from the notch of expansion block mounting groove 103, it is to be noted herein, swelling slide block can be stoped to deviate from from the notch of expansion block mounting groove 103 although sliver 19 coordinates with guide groove 105, but be matched in clearance therebetween, this makes swelling slide block 12 can remain when being subject to the pressure of horizontal steel tube 18 to contact with pressed slider 13, thus sliver 19 can be avoided stressed, sliver 19 is herein only the effect playing spacing anticreep, the two ends place of swelling slide block 12 is also respectively equipped with Stop structure, in the present embodiment, Stop structure adopts the projection 20 being located at swelling slide block corresponding end, this projection 20 makes swelling slide block 12 cannot deviate from from the end of expansion block mounting groove 103, in addition, swelling slide block 12 on the side of pressed slider 13, be also provided with anti-skidding striped 21, anti-skidding striped 21 extends along the glide direction of swelling slide block.

The side adjacent with swelling slide block 12 of pressed slider 13 is provided with and keeps off cap 22, gear cap 22 is arranged in expansion block mounting groove 103, the groove bottom of expansion block mounting groove 103 coordinates with block between gear cap 22, thus can prevent pressed slider 13 from coming off from the inner side of sliding sleeve 11, the lateral surface of gear cap 22 is provided with the anti-skidding striped corresponding with the anti-skidding striped 21 on swelling slide block 12, the anti-skidding striped on gear cap 22 and anti-skidding striped on swelling slide block 12 engaged, in addition, the side of the slide block of swelling dorsad of pressed slider 13 has the cambered surface corresponding with vertical steel pipe 14, described cambered surface is made up of the medial surface of arc-shaped slot set on pressed slider, suppose that the direction of advance of swelling slide block when wedging is front herein, namely be move forward during its wedging, then in the present embodiment, one of front is positioned at lower than another at two cell walls (wall) of swelling slide block in two cell walls of described arc-shaped slot, mention in (first paragraph) due to above, the groove bottom of expansion block mounting groove is inclined-plane, and according to the operating principle of this fastener, pressed slider 13 by during swelling ram extrusion its gear cap rear end fit with the bottom land of expansion block mounting groove all the time, its position is almost constant, when being subject to the swelling effect of swelling slide block, it is be hinged on sliding sleeve 11 by rear end that pressed slider 13 is now similar to, if the both sides cell wall of the arc-shaped slot therefore on pressed slider is contour, the cell wall at its front end place then will certainly be caused " to scratch " in the tube wall of vertical steel pipe 14, thus form the linear contact lay with vertical steel pipe, this obviously can reduce the adhesion between pressed slider and vertical steel pipe, make in the present embodiment to be positioned at one of front lower than after another at two cell walls (wall) of swelling slide block in two cell walls of arc-shaped slot, effectively can increase the contact area between cambered surface on pressed slider and vertical steel pipe, increase adhesion therebetween.

Two covers hold down assembly be positioned at sliding sleeve 11 phase heteropleural side on and the two axially offseting one from another at sliding sleeve, in addition, two to overlap the hinge axes held down assembly space crossed and be formed with setting angle, and in the present embodiment, this setting angle is 90 °.

Due in connection system for guide rail, that position that horizontal steel tube is located at vertical steel pipe has relevant standard, therefore, in order to fastener is remained on corresponding position, vertical steel pipe is also provided with corresponding position limiting structure, and in the present embodiment, what position limiting structure adopted is bonding wire 23.

In addition, one end of vertical steel pipe 14 is coaxially fixedly equipped with male joint 51, and the other end is coaxially fixedly equipped with the female joint 52 corresponding with male joint 51, male and female joint separately with its one end towards steel pipe 14 outside for outer end, wherein male joint 51 is entity structure, and female joint 52 is in tubular.

Male joint 51 has the revolution positioning section 511 protruded outside steel pipe, revolution positioning section 511 is cylindrical, can to insert in use in female joint 52 and can rotate in female joint 52, realize public, centering between female joint, its inner place has a connecting portion 512, this connecting portion 512 is in truncated cone-shaped and its external diameter is greater than the external diameter turning round positioning section, its outer peripheral face is provided with position limiting convex ring, be referred to as the first bulge loop 513 herein, when assembling male joint 21, first by its inner corresponding end inserting steel pipe 14, and then be welded and fixed, first bulge loop 513 can be used for coordinating with the end face of steel pipe 14 limiting the degree of depth that steel pipe 14 is inserted in male joint 51, first bulge loop 513 is also provided with simultaneously and is used to indicate public affairs, the cue mark (not shown) of the locking state of female joint, the outer end of revolution positioning section 511 is provided with the linkage section 514 of coaxial line with it, in the present embodiment, linkage section 514 is cylindrical equally, its external diameter is less than the external diameter of revolution positioning section 511, the outer face turning round positioning section 511 is made to form a step surface in the cooperation place with linkage section 514 thus, the outer end of linkage section 514 is provided with non-return lock dog 515, in the present embodiment, non-return lock dog 515 has three, they along linkage section radially outward protrude and center line around linkage section 514 is distributed on linkage section 514, the medial surface of non-return lock dog 515 and the outer face of revolution positioning section 511 surround circumferencial direction around steel pipe 14 from one end to the bayonet socket 516 that the other end broadens gradually, suppose that male joint 51 is along rotating clockwise when locking with female joint 52, then described bayonet socket 516 broadens gradually along clockwise direction, in the present embodiment, the medial surface of non-return lock dog 515 is helicoid, bayonet socket 516 broaden gradually be realize thus (certainly, in other embodiments, corresponding inclined-plane or helicoid can also be set on the outer face of revolution positioning section).

The outside wall surface of female joint 52 is provided with position limiting convex ring equally, this position limiting convex ring is claimed to be the second bulge loop 521 herein, second bulge loop 521 is positioned at the outer end place of female joint, when being assembled on steel pipe 14, steel pipe 14 is inserted in the inner of female joint 52 first, and the second bulge loop 521 can coordinate with the corresponding end face of steel pipe 14 insertion depth limiting female joint 52, the internal face of female joint 52 is provided with block 522, in the present embodiment, block 522 is positioned at the inner place of female joint 52, it has three, with non-return lock dog 515 one_to_one corresponding, the lateral surface of block 522 is the helicoid with the medial surface complementation of non-return lock dog 515, public, when female joint connects, first male joint 51 is inserted in the endoporus of female joint 52, and non-return lock dog 515 inwardly crosses block from the gap between adjacent blockers, and then the male joint 51 that turns clockwise, then block 522 is stuck in corresponding bayonet socket and also stops public affairs on the one hand, female joint continues to relatively rotate, tangle non-return lock dog and stop public affairs on the other hand, female joint gets loose vertically, in addition, female joint is provided with cue mark (not shown) equally, when male and female structure is docked and locked, this cue mark aligns with the cue mark in male joint.

When using above-mentioned fastener to scaffold erecting, can first sliding sleeve be enclosed within the vertical steel pipe of scaffold, position is looked for by making to slide over slip on vertical steel pipe, after finding desired location, the corresponding socket place held down assembly is placed in along respective radial direction by with two horizontal steel tubes (spatial vertical is intersected each other) that vertical steel pipe intersects, coordinate after horizontal steel tube preliminary latch by hasp with gland, knock swelling slide block from the corresponding end of swelling slide block and just can extrude horizontal steel tube and pressed slider simultaneously, and then realize the vertical steel pipe of scaffold and the locking of horizontal steel tube.

The embodiment 2 of scaffold upright rod, as shown in figs. 14-15, the difference of this embodiment and embodiment 1 is only, the fastener in this embodiment only has a set of holding down assembly.

The embodiment 3 of scaffold upright rod, as shown in figs. 16-17, the difference of the present embodiment and embodiment 2 is only, also groove is provided with inside sliding sleeve, this groove is sliding sleeve groove axially, is wherein equipped with wedge block 91, wedge block 91 for further swelling between sliding sleeve and vertical steel pipe, to ensure the fastness combined therebetween, wherein voussoir can in use separately be joined.

The embodiment 4 of scaffold upright rod, as shown in figure 18, in the present embodiment, vertical steel pipe is equipped with four fasteners, the fastener being wherein arranged in vertical steel pipe one end is identical with the fastener structures of above-described embodiment 2, and remaining three fastener is identical with the fastener structures described in above-described embodiment 1.

In other embodiment of scaffolding steel pipe Spatial Coupling fastener, the hasp described in above-described embodiment 1,2,3,4 can also be " 7 " font, and in such cases, the described bayonet socket on gland just can omit; As long as described swelling slide block can play the effect of swelling, its concrete shape is unrestricted; In addition, also expansion block mounting groove can be set as oat tail groove structure, and make it narrow gradually from one end to the other end, shoal, then swelling slide block is set as substantially in cuboid, but be also from one end to the other end narrow gradually, thinning shape, prevent swelling slide block from the notch of expansion block mounting groove with this and wherein one bring out and come off; Can also arrange on sliding sleeve and heave by its jacket wall radial direction the protuberance formed, this protuberance and free bearing are distributed in the relative both sides place of sliding sleeve, then the groove formed inside protuberance wedges wedge block with fixing corresponding vertical steel pipe, the U-shaped profile of the groove wherein formed inside protuberance; Pressed slider can also omit, and in such cases, only need to ensure when sliding sleeve puts vertical steel pipe, vertical steel pipe can protrude from described opening; The quantity of fastener and form can also need setting according to different, as long as can satisfy the demand in a word, its quantity is more than one and all can.

Claims

1. scaffold upright rod, comprise vertical steel pipe, it is characterized in that, vertical steel pipe is equipped with at least one fastener, fastener comprises the sliding sleeve be slidably enclosed within vertical steel pipe, the outside of sliding sleeve is provided with at least one cover and holds down assembly, often the cover axis included along sliding sleeve that holds down assembly is laid in two free bearings on sliding sleeve relatively, one in two free bearings is hinged with gland, another is hinged with for overlapping with gland and compressing the hasp of gland, the hinge axes of these two free bearings is parallel to each other and intersect with the center line spatial vertical of sliding sleeve, in addition, the socket for accommodating horizontal steel tube is surrounded between the top often overlapping two free bearings held down assembly, expansion block mounting groove is surrounded between the bottom of the two, the jacket wall of sliding sleeve is provided with inside and outside penetrating opening often overlapping the position between two free bearings held down assembly, in expansion block mounting groove, upper and lower anticreep is equipped with for the swelling slide block of wedging between this vertical steel pipe and corresponding horizontal steel tube, one end of vertical steel pipe is coaxially fixedly equipped with the male joint of rotary joint style, and the other end is coaxially fixedly equipped with the female joint corresponding with male joint, be equipped with the extruding for bearing swelling slide block in described opening and compress the pressed slider of vertical steel pipe, the side of the slide block of swelling dorsad of pressed slider has the cambered surface with the outline adaptation of vertical steel pipe, the side of the described dorsad opening of swelling slide block is provided with the cambered surface with the outline adaptation of corresponding horizontal steel tube, the groove bottom of expansion block mounting groove be along in the direction of advance of swelling slide block when wedging gradually to the inclined-plane of lopsidedness deviating from swelling slide block, cambered surface on pressed slider is made up of the medial surface of arc-shaped slot set on pressed slider, in two cell walls of described arc-shaped slot swelling slide block in wedging time direction of advance on be positioned at one of front lower than another.

2. scaffold upright rod according to claim 1, is characterized in that, two covers that held down assembly of at least one fastener, and two overlap the different both sides place that the free bearing held down assembly is positioned at corresponding sliding sleeve, and their hinge axes spatial vertical is intersected.

3. scaffold upright rod according to claim 1, it is characterized in that, the side towards described opening of swelling slide block is provided with anti-skidding striped, and the bearing of trend of anti-skidding striped is identical with the glide direction of swelling slide block, and pressed slider is provided with the striped be engaged with the anti-skidding striped on swelling slide block.

4. scaffold upright rod according to claim 1, is characterized in that, swelling slide block is voussoir.

5. the scaffold upright rod according to claim 1 or 2 or 3 or 4, it is characterized in that, one in the cell wall of expansion block mounting groove and the respective side walls of swelling slide block is provided with guide groove, another is provided with the sliver corresponding with guide groove, described guide groove and sliver matched in clearance also stop swelling slide block to be deviate from from the notch of expansion block mounting groove, and the bulge-structure that swelling slide block is established by its two ends place coordinates with sliding sleeve anticreep on activity direction.

6. scaffold upright rod according to claim 5, is characterized in that, notch or bottom land inclination gradually to expansion block mounting groove in sliver and the guide groove direction of advance all when the wedging of swelling slide block, the incline direction of the two is identical.

7. the scaffold upright rod according to claim 1 or 2 or 3 or 4, is characterized in that, described swelling slide block is provided with the scale being used to indicate its assembling degree of depth.

8. the scaffold upright rod according to claim 1 or 2 or 3 or 4, it is characterized in that, the two ends place at each fastener on vertical steel pipe is respectively equipped with corresponding position limiting structure.

9. the scaffold upright rod according to claim 1 or 2 or 3 or 4, it is characterized in that, public, female joint separately with its one end towards vertical steel pipe outside for outer end, male joint has protrudes outside steel pipe, for feeling relieved the revolution positioning section coordinated with female joint, the outer end of revolution positioning section is provided with the linkage section of coaxial line with it, the external diameter of linkage section is less than the external diameter of revolution positioning section and its outer end is provided with non-return lock dog, the medial surface of described non-return lock dog and the outer face of revolution positioning section surround circumferencial direction around steel pipe from one end to the bayonet socket that the other end broadens gradually, described female joint is tubular, inner wall surface thereof is provided with for inserting in male joint and be stuck in the block in described bayonet socket after direction initialization rotation.

10. scaffold upright rod according to claim 9, it is characterized in that, male and female joint is plugged in the corresponding end of vertical steel pipe separately and has the coaxial position limiting convex ring arranged respectively, position limiting convex ring coordinates with the end face block of the respective end of vertical steel pipe, and the position limiting convex ring of female joint is positioned at its outer end place.

11. scaffold upright rods according to claim 9, is characterized in that, male and female joint are provided with separately the cue mark of the locked position being used to indicate them.

12. scaffold upright rods according to claim 9, is characterized in that, the medial surface of described non-return lock dog is helicoid, and the lateral surface of block is the helicoid with the medial surface complementation of non-return lock dog.