CN201087692Y

CN201087692Y - Multi-functional folding ladder connector

Info

Publication number: CN201087692Y
Application number: CNU2007201285210U
Authority: CN
Inventors: 梁国耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-16
Filing date: 2007-08-16
Publication date: 2008-07-16
Anticipated expiration: 2017-08-16

Abstract

The utility model discloses a connecting piece of a multifunctional folding ladder, which relates to the technical field of the building implement. A left external cover, a left top cover, a top chicken, a right top cover, and a right external cover are movably connected by a central axis in sequence in the rotary way, the left external cover and the right external cover are fixed by bolts, the left external cover, the right external cover, a handle and a pullback spring positioned in the middle of the handle are all movably connected by a prolate axis in the rotary way, the upper end section of the top chicken supports and presses one end of a top spring, and the other end of the top spring also supports and presses the spring shores inside the left top cover and the right top cover, the lower end of the top chicken is positioned on a positioning key, the positioning key is assembled with a left opening on the left top cover and a right opening on the right top cover in the plug-in way, the left end of the positioning key is assembled with a left slipping hole on the left external cover in the plug-in way, the right end of the positioning key is assembled with a right slipping hole on the right external cover in the plug-in way, a staff is provided with a key holder piece and a spring in the perforating way, a staff pitting on the positioning key supports and presses one end of the staff, the cross-piece of the staff supports and presses one end of the spring, the other end of the spring supports and presses a supporting saddle, and the supporting saddle is tightly fixed with the inner side of the back end of the handle. The utility model relates to a tool for positioning in building and maintenance. The structure is skillful, the angle can be changed, and the effect is good.

Description

The connector of Foldable multifunctional ladder

Technical field

The connector of the utility model Foldable multifunctional ladder relates to the building implement technical field; Be particularly related to the building implement technical field of folding ladder; Relate in particular to can the conversion variform folding ladder building implement technical field; Be specifically related to the connector technical field of Foldable multifunctional ladder.

Background technology

At present, with regard to the building implement of terraced class, have only single ladder type, herringbone ladder type, flexible single ladder type, flexible herringbone ladder type that several several types is arranged, exist tradition simple in structure, the kind dullness is single, version is few and simple, can not fold and use dullness, deposit area occupied greatly and many deficiencies such as inconvenience, defective and drawback.Based on applicant's professional knowledge be engaged in the many years of experience of industry work and to the excelsior pursuit of cause, the utility model is exactly on the basis of conscientious and sufficient investigation, understanding, analysis, the above-mentioned existing known technology of summary and present situation, for overcoming and solving that the many deficiencies, defective and the drawback that exist in the existing known technology succeed in developing.

The utility model content

The purpose of this utility model provides a kind of connector of Foldable multifunctional ladder, the outer centre bore that covers in its left side, centre bore on the top cover of a left side, centre bore on the chicken son of top, centre bore on the right top cover, the right outer centre bore that covers is connected to rotate ways of connecting alive by central axis successively, fixedlyed connected by the pot nail with the right outer pot nail hole that covers in the outer pot nail hole that covers, its left side, the outer major axis hole that covers, its left side, the right outer major axis hole that covers, the major axis hole of handle both sides, being placed on the middle extension spring of handle is connected to rotate ways of connecting alive by major axis, its top chicken son's a upper end section and an end of top spring, spring fore-set in the other end of top spring and left top cover and the right top cover all is connected in the mode of mutual roof pressure, its top chicken son's lower end is placed on the positioning key, left gap on its positioning key and the left top cover and the right gap on the right top cover, the left end of positioning key and the outer left slide opening that covers in a left side, the right-hand member of positioning key all is connected in the mode of plug-in mounting with the right outer right slide opening that covers, be coated with keyseat sheet and spring on its little axle, little axle shrinkage pool on its positioning key and an end of little axle, the washer of little axle and an end of spring, the other end of spring all is connected in the mode of mutual roof pressure with bearing, and the inboard of its bearing and handle rear end is fastenedly connected by securing member.

The purpose that reaches by the utility model is: a kind of " connector of Foldable multifunctional ladder " new product is provided, overcome and solve many deficiencies, defective and the drawback that exists in the existing known technology, make that it is scientific and reasonable for structure and ingenious, multiple function of kind, version are various, can uprightly can fold again also can realize needed various angle, when depositing area occupied little and make things convenient for, effect stability reliably, be convenient to processing and fabricating and standardization and cost low, help wide popularization and application.

The utility model can accomplish the end in view.

For achieving the above object, the technical scheme that provides of the utility model is:

A kind of connector of Foldable multifunctional ladder is made of the right gap on the left gap on pot nail, left enclosing cover, the outer left slide opening that covers in a left side, left top cover, the left top cover, top spring, top chicken son, positioning key, keyseat sheet, right top cover, the right top cover, right enclosing cover, right outer right slide opening, central axis, extension spring, handle, major axis, little axle, spring, the bearing that covers;

The connector of described Foldable multifunctional ladder, the outer centre bore that covers in its left side, centre bore on the top cover of a left side, centre bore on the chicken son of top, centre bore on the right top cover, the right outer centre bore that covers is connected to rotate ways of connecting alive by central axis successively, fixedlyed connected by the pot nail with the right outer pot nail hole that covers in the outer pot nail hole that covers, its left side, the outer major axis hole that covers, its left side, the right outer major axis hole that covers, the major axis hole of handle both sides, being placed on the middle extension spring of handle is connected to rotate ways of connecting alive by major axis, its top chicken son's a upper end section and an end of top spring, spring fore-set in the other end of top spring and left top cover and the right top cover all is connected in the mode of mutual roof pressure, its top chicken son's lower end is placed on the positioning key, left gap on its positioning key and the left top cover and the right gap on the right top cover, the left end of positioning key and the outer left slide opening that covers in a left side, the right-hand member of positioning key all is connected in the mode of plug-in mounting with the right outer right slide opening that covers, be coated with keyseat sheet and spring on its little axle, little axle shrinkage pool on its positioning key and an end of little axle, the washer of little axle and an end of spring, the other end of spring all is connected in the mode of mutual roof pressure with bearing, and the inboard of its bearing and handle rear end is fastenedly connected by securing member.

The connector of described Foldable multifunctional ladder, described pot nail is axle spike structure, described left enclosing cover, right enclosing cover is the lid-like of hair-dryer shape, this cover be provided with centre bore and pot nail and major axis hole, the lower end of this lid is provided with the connecting hole with folding ladder, this left side enclosing cover is provided with left slide opening, this right side enclosing cover is provided with right slide opening, described left slide opening, right slide opening is the shape of oblong aperture, described left top cover, right top cover is the lid-like of hair-dryer shape, this covers and is provided with centre bore, the lower end of this lid is provided with the connecting hole with folding ladder, the circular arc wall of this left side top cover is provided with left gap, the circular arc wall of this right side top cover is provided with right gap, described left gap, right gap is rectangular recessed open-minded shape, described top spring, extension spring, spring is spring-like structures, described top chicken is young for being provided with the microscler platy structure of centre bore, described positioning key is the rectangular block structure that is provided with little axle shrinkage pool, described keyseat sheet is the spill laminated structure that is provided with little axis hole, described central axis, major axis, little axle is a shape structure, described handle is that both sides are provided with the major axis hole, the shell-like structure of " 7 " word hook-type, described bearing are that the center is provided with the spring projection and the upper end is provided with the cross platy structure of shutter.

The connector of described Foldable multifunctional ladder, described left enclosing cover, right enclosing cover are mirror-image structure.

The connector of described Foldable multifunctional ladder, outer the covering in left slide opening, the right side that covers setting outside the described left side is provided with right slide opening correspondence mutually.

The connector of described Foldable multifunctional ladder, described left top cover, right top cover are mirror-image structure.

The connector of described Foldable multifunctional ladder, the right gap that is provided with on the left gap that is provided with on the circular arc wall of described left top cover, the circular arc wall of right top cover all respectively are 2-6.

The right gap that is provided with on the connector of described Foldable multifunctional ladder, the left gap that is provided with on the circular arc wall of described left top cover and the circular arc wall of right top cover is corresponding mutually.

The connector of described Foldable multifunctional ladder, described top chicken young for microscler platy structure, the right angle type platy structure that is provided with centre bore of selecting to be provided with centre bore, be provided with centre bore T font platy structure in a kind of structure.

The connector of described Foldable multifunctional ladder, described top chicken son is longer than the radius of left top cover/right top cover from the length of the termination of center to the lower end of centre bore.

The operating principle of the present utility model and the course of work are: the utility model in use, a perpendicular termination of supporting of the bottom of enantiomorphous each other left enclosing cover, right enclosing cover and folding ladder is fastenedly connected by securing member, simultaneously, the perpendicular termination of supporting of the bottom of enantiomorphous each other left top cover, right top cover and another root of folding ladder is fastenedly connected by securing member, and all the rest may be inferred in the perpendicular support of corresponding each root of folding ladder termination; When folding ladder need use or deposit, can handle have been removed according to concrete needs; Because having removed of handle just pulled out positioning key, and slided to the rear end from the left slide opening of mutual correspondence and the front end of right slide opening from the left gap of mutual correspondence, right gap; Handle grip the positioning key that is drawn out and slided backward and is rotated along the circular arc of left top cover and right top cover, in this rotation process, owing to top chicken son is longer than the radius of left top cover/right top cover and top chicken son's lower end is the reason that is placed on the positioning key all the time from the length of the termination of center to the lower end of centre bore, top chicken son's thickness just in time slightly is wider than in slit between left in addition top cover, right top cover two circular arcs, so top chicken son is that rotate in the center of circle with the rotation of positioning key with the axle center of central axis also; When turning to required angle, when being the position of the left gap of next correspondence mutually, right gap, handle is replied original position; Handle is in replying original position process, because the effect of little axle upper spring between positioning key and the bearing just pushes away positioning key and is put into the corresponding mutually left gap of the described next one, the position in the right gap; So far, the adjustment of described angle/position or conversion are finished; All the rest may be inferred for the adjustment of any angle/position or conversion.The operating principle of the present utility model and the course of work are very simply and easily; The those of ordinary skill of all industry all can be implemented and be operated.

Owing to adopted technical scheme provided by the utility model, because the above operating principle of the present utility model and the course of work are described, make the utility model compare with existing known technology, obtained following beneficial effect:

1,, thereby obtained the beneficial effect that can be connected with the support of folding ladder because the utility model is provided with left enclosing cover, right enclosing cover, left top cover, right top cover.

2, because the utility model is provided with left top cover, right top cover, top chicken son, central axis, and top chicken son's thickness just in time slightly is wider than in the slit between left top cover, right top cover two circular arcs, is the beneficial effect that rotate in the center of circle with the central axis thereby obtained to make top chicken son.

3, the lower end owing to top chicken son in the utility model is placed on the positioning key all the time, thereby has obtained and can drive the beneficial effect that top chicken son rotates by positioning key.

4, owing to be respectively arranged with left gap, right gap on left top cover of the present utility model and the right top cover, thereby obtained the beneficial effect that can position positioning key.

5, since the left gap, the right gap that are provided with respectively on left top cover of the present utility model and the right top cover be 2-6 respectively individual, thereby obtained to carry out six kinds of angles and the beneficial effect of locating.

6,, thereby obtained to have removed handle enforcement, the beneficial effect of return, location because the utility model is provided with component such as handle, major axis, little axle, extension spring, spring, bearing, positioning key.

7, since top described in the utility model chicken young for microscler platy structure, the right angle type platy structure that is provided with centre bore of selecting to be provided with centre bore, be provided with centre bore T font platy structure in a kind of structure, thereby obtained the beneficial effect that described three kinds of frameworks can constitute three kinds of connectors respectively; Promptly these three kinds of connectors can contain general needed various angles and the beneficial effect of fixing all places.

8,, thereby obtained to provide the beneficial effect of " connector of Foldable multifunctional ladder " new product because above each bar of the present utility model is described.

9,, thereby obtained to overcome and solve the beneficial effect of the many deficiencies, defective and the drawback that exist in the existing known technology because above each bar of the present utility model is described.

10, since design science of the present utility model rationally, simple and ingenious structure, use is easy to operate, effect stability is reliable, thereby the beneficial effect of low, an easy to use and sharp popularization that obtained to be easy to be made.

Description of drawings

Fig. 1 is the structural upright schematic diagram of each component before installing in the utility model specific embodiment; And with this figure the situation of be about to installing has been represented to come out clearly, further deepened each component in the utility model and the understanding of integral status of the present utility model.

Fig. 2 is the schematic perspective view of the utility model specific embodiment.

Fig. 3 is the young schematic diagram that is provided with the microscler platy structure of centre bore for selection of top chicken in the utility model specific embodiment; By the top chicken of this structural behavior young with the utility model in being connected of other each component and can implement out the utility model---the connector of first kind of form.

Fig. 4 is the young schematic diagram that is provided with the right angle type platy structure of centre bore for selection of top chicken in the utility model specific embodiment; By the top chicken of this structural behavior young with the utility model in being connected of other each component and can implement out the utility model---the connector of first kind of form.

Fig. 5 is the young schematic diagram that is provided with the T font platy structure of centre bore for selection of top chicken in the utility model specific embodiment; By the top chicken of this structural behavior young with the utility model in being connected of other each component and can implement out the utility model---the connector of the third form.

Fig. 6 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody one of behavior in service of the present utility model with this figure.

Fig. 7 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody two of behavior in service of the present utility model with this figure.

Fig. 8 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody three of behavior in service of the present utility model with this figure.

Fig. 9 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody four of behavior in service of the present utility model with this figure.

Figure 10 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody five of behavior in service of the present utility model with this figure.

Figure 11 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody six of behavior in service of the present utility model with this figure.

Figure 12 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody seven of behavior in service of the present utility model with this figure.

Figure 13 is the utility model and the back together schematic perspective view that constitutes folding ladder of support and connection; Can embody eight of behavior in service of the present utility model with this figure.

Behavior in service of the present utility model can also have a lot of modes, here no longer embodies one by one in the mode of figure.

Label among the figure: 1, pot nail, 2, left enclosing cover, 201, left slide opening, 3, left top cover, 301, left gap, 4, the top spring, 5, top chicken son, 6, positioning key, 7, the keyseat sheet, 8, right top cover, 801, right gap, 9, right enclosing cover, 901, right slide opening, 10, central axis, 11, extension spring, 12, handle, 13, major axis, 14, little axle, 15, spring, 16, bearing.

The specific embodiment

Below in conjunction with Figure of description, the utility model is described in detail.Shown in Figure of description:

A kind of connector of Foldable multifunctional ladder is made of the right slide opening 901 on the right gap 801 on the left gap 301 on the left slide opening 201 on pot nail 1, left enclosing cover 2, the left enclosing cover 2, left top cover 3, the left top cover 3, top spring 4, top chicken son 5, positioning key 6, keyseat sheet 7, right top cover 8, the right top cover 8, right enclosing cover 9, the right enclosing cover 9, central axis 10, extension spring 11, handle 12, major axis 13, little axle 14, spring 15, bearing 16;

The connector of described Foldable multifunctional ladder, centre bore on its left enclosing cover 2, centre bore on the top cover 3 of a left side, centre bore on the top chicken son 5, centre bore on the right top cover 8, centre bore on the right enclosing cover 9 is connected to rotate ways of connecting alive by central axis 10 successively, pot nail hole on its left enclosing cover 2 and the pot on the right enclosing cover 9 are followed closely a hole and are followed closely 1 by pot and fixedly connected, major axis hole on its left enclosing cover 2, major axis hole on the right enclosing cover 9, the major axis hole of handle 12 both sides, being placed on handle 12 middle extension springs 11 is connected to rotate ways of connecting alive by major axis 13, a upper end section of its top chicken son 5 and an end of top spring 4, spring fore-set in the other end of top spring 4 and left top cover 3 and the right top cover 8 all is connected in the mode of mutual roof pressure, its top chicken son 5 lower end is placed on the positioning key 6, left gap 301 on its positioning key 6 and the left top cover 3 and the right gap 801 on the right top cover 8, left slide opening 201 on the left end of positioning key 6 and the left enclosing cover 2, the right-hand member of positioning key 6 all is connected in the mode of plug-in mounting with right slide opening 901 on the right enclosing cover 9, be coated with keyseat sheet 7 and spring 15 on its little axle 14, little axle shrinkage pool on its positioning key 6 and an end of little axle 14, the washer of little axle 14 and an end of spring 15, the other end of spring 15 all is connected in the mode of mutual roof pressure with bearing 16, and its bearing 16 is fastenedly connected by securing member with the inboard of handle 12 rear ends.

The connector of described Foldable multifunctional ladder, described pot nail 1 is an axle spike structure, described left enclosing cover 2, right enclosing cover 9 is the lid-like of hair-dryer shape, this cover be provided with centre bore and pot nail and major axis hole, the lower end of this lid is provided with the connecting hole with folding ladder, this left side enclosing cover 2 is provided with left slide opening 201, this right side enclosing cover 9 is provided with right slide opening 901, described left slide opening 201, right slide opening 901 is the shape of oblong aperture, described left top cover 3, right top cover 8 is the lid-like of hair-dryer shape, this covers and is provided with centre bore, the lower end of this lid is provided with the connecting hole with folding ladder, the circular arc wall of this left side top cover 3 is provided with left gap 301, the circular arc wall of this right side top cover 8 is provided with right gap 801, described left gap 301, right gap 801 is rectangular recessed open-minded shape, described top spring 4, extension spring 11, spring 15 is spring-like structures, described top chicken young 5 is for being provided with the microscler platy structure of centre bore, described positioning key 6 is for being provided with the rectangular block structure of little axle shrinkage pool, described keyseat sheet 7 is for being provided with the spill laminated structure of little axis hole, described central axis 10, major axis 13, little axle 14 is a shape structure, described handle 12 is provided with the major axis hole for both sides, the shell-like structure of " 7 " word hook-type, described bearing 16 is provided with the cross platy structure that spring projection upper end is provided with shutter for the center.

The connector of described Foldable multifunctional ladder, described left enclosing cover 2, right enclosing cover 9 are mirror-image structure.

The connector of described Foldable multifunctional ladder, it is corresponding mutually that right slide opening 901 is set on the left slide opening 201 that is provided with on the described left enclosing cover 2, the right enclosing cover 9.

The connector of described Foldable multifunctional ladder, described left top cover 3, right top cover 8 are mirror-image structure.

The connector of described Foldable multifunctional ladder, the right gap 801 that is provided with on the left gap 301 that is provided with on the circular arc wall of described left top cover 3, the circular arc wall of right top cover 8 all respectively are 2-6.

The right gap 801 that is provided with on the connector of described Foldable multifunctional ladder, the left gap 301 that is provided with on the circular arc wall of described left top cover 3 and the circular arc wall of right top cover 8 is corresponding mutually.

The connector of described Foldable multifunctional ladder, described top chicken young 5 for microscler platy structure, the right angle type platy structure that is provided with centre bore of selecting to be provided with centre bore, be provided with centre bore T font platy structure in a kind of structure.

The connector of described Foldable multifunctional ladder, described top chicken son 5 is longer than the radius of left top cover 3/ right top cover 8 from the length of the termination of center to the lower end of centre bore.

In above-mentioned specific implementation process: the right gap 801 that is provided with on the left gap 301 that is provided with on the circular arc wall to described left top cover 3, the circular arc wall of right top cover 8 is implemented with 2,3,4,5,6,7,8 respectively; To described top chicken son 5 respectively with the microscler platy structure that is provided with centre bore as shown in Figure 3, be provided with the right angle type platy structure of centre bore as shown in Figure 4, the T font platy structure that is provided with centre bore as shown in Figure 5 implements; Below all obtained the good result of expection.

The utility model has carried out property on probation examination after making and finishing, and through examination on probation, has obtained the good result of expection.

The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma restriction; The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, and implement the utility model swimmingly; But all those skilled in the art in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, are equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of the technical solution of the utility model change, modification and the differentiation etc. of any equivalent variations that above embodiment did.

Claims

1. the connector of a Multi-functional folding ladder is characterized in that: by pot nail (1), left outside lid (2), left slide opening (201) on the left outside lid (2), left top cover (3), left gap (301) on the left top cover (3), top spring (4), top chicken son (5), positioning key (6), keyseat sheet (7), right top cover (8), right gap (801) on the right top cover (8), right outside lid (9), right slide opening (901) on the right outside lid (9), central shaft (10), extension spring (11), handle (12), major axis (13), little axle (14), spring (15), bearing (16) consists of;

The connector of described Foldable multifunctional ladder, centre bore on its left enclosing cover (2), centre bore on the left side top cover (3), centre bore on the top chicken son (5), centre bore on the right top cover (8), centre bore on the right enclosing cover (9) is connected to rotate ways of connecting alive by central axis (10) successively, fixedlyed connected by pot nail (1) with the pot nail hole on the right enclosing cover (9) in pot nail hole on its left enclosing cover (2), major axis hole on its left enclosing cover (2), major axis hole on the right enclosing cover (9), the major axis hole of handle (12) both sides, being placed on the middle extension spring (11) of handle (12) is connected to rotate ways of connecting alive by major axis (13), its top chicken son's (5) a upper end section and an end of top spring (4), spring fore-set in the other end of top spring (4) and left top cover (3) and the right top cover (8) all is connected in the mode of mutual roof pressure, its top chicken son's (5) lower end is placed on the positioning key (6), left gap (301) on its positioning key (6) and the left top cover (3) and the right gap (801) on the right top cover (8), left slide opening (201) on the left end of positioning key (6) and the left enclosing cover (2), the right-hand member of positioning key (6) all is connected in the mode of plug-in mounting with right slide opening (901) on the right enclosing cover (9), be coated with keyseat sheet (7) and spring (15) on its little axle (14), little axle shrinkage pool on its positioning key (6) and an end of little axle (14), the washer of little axle (14) and an end of spring (15), the other end of spring (15) all is connected in the mode of mutual roof pressure with bearing (16), and its bearing (16) is fastenedly connected by securing member with the inboard of handle (12) rear end.

2. the connector of Foldable multifunctional ladder according to claim 1, it is characterized in that: described pot nail (1) is axle spike structure, described left enclosing cover (2), right enclosing cover (9) is the lid-like of hair-dryer shape, this cover be provided with centre bore and pot nail and major axis hole, the lower end of this lid is provided with the connecting hole with folding ladder, this left side enclosing cover (2) is provided with left slide opening (201), this right side enclosing cover (9) is provided with right slide opening (901), described left slide opening (201), right slide opening (901) is the shape of oblong aperture, described left top cover (3), right top cover (8) is the lid-like of hair-dryer shape, this covers and is provided with centre bore, the lower end of this lid is provided with the connecting hole with folding ladder, the circular arc wall of this left side top cover (3) is provided with left gap (301), the circular arc wall of this right side top cover (8) is provided with right gap (801), described left gap (301), right gap (801) is rectangular recessed open-minded shape, described top spring (4), extension spring (11), spring (15) is spring-like structures, described top chicken son (5) is for being provided with the microscler platy structure of centre bore, described positioning key (6) is for being provided with the rectangular block structure of little axle shrinkage pool, described keyseat sheet (7) is for being provided with the spill laminated structure of little axis hole, described central axis (10), major axis (13), little axle (14) is a shape structure, described handle (12) is provided with the major axis hole for both sides, the shell-like structure of " 7 " word hook-type, described bearing (16) is provided with the cross platy structure that spring projection upper end is provided with shutter for the center.

3. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: described left enclosing cover (2), right enclosing cover (9) are mirror-image structure.

4. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: it is corresponding mutually that right slide opening (901) is set on the left slide opening (201) that described left enclosing cover (2) upward is provided with, the right enclosing cover (9).

5. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: described left top cover (3), right top cover (8) are mirror-image structure.

6. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: the right gap (801) that is provided with on the circular arc wall of the left gap (301) that is provided with on the circular arc wall of described left top cover (3), right top cover (8) all respectively is 2-6.

7. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: the right gap (801) that is provided with on the left gap (301) that is provided with on the circular arc wall of described left top cover (3) and the circular arc wall of right top cover (8) is corresponding mutually.

8. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: described top chicken son (5) for microscler platy structure, the right angle type platy structure that is provided with centre bore of selecting to be provided with centre bore, be provided with centre bore T font platy structure in a kind of structure.

9. the connector of Foldable multifunctional ladder according to claim 1 is characterized in that: described top chicken son (5) is longer than the radius of left top cover (3)/right top cover (8) from the length of the termination of center to the lower end of centre bore.