CN1742650A - Multi-combination positioning device of metal framed cabinet - Google Patents

Abstract

The present invention discloses a multiple combined positioning device for cabinet frame with metal supporting frame. Said cabinet frame with metal supporting frame is made up by using several metal tubes and shelves with sleeve and adopting said multiple combined positioning devices through a certain assembling process. The invented multiple combined positioning device includes the following components: tapered joint seat, a group of cone card stop positioning pieces, mushroom-shaped stop plugging seat and supporting bars, etc. Said tapered joint seat can be matched with various regulating feet or rollers to form multifunctional change. Said invention also provides its assembling concrete steps.

Description

Multi-combination positioning device of metal framed cabinet

Technical field

The present invention relates to a kind of multi-combination positioning device of metal framed cabinet, refer to a kind of by glove framework, support rod body, sleeve pipe and close the cabinet framework that the collar of the body of rod is formed for bundle according to this especially.

Background technology

The rack of prior art sees also shown in Figure 15,16, be to form support rod body 10 mostly with an above metal bridge, on this support rod body 10 and be provided with an above annular groove 111, tightening support rod body 10 for two identical collars 30 uses, utilize sleeve pipe 41 collocation cover to be fixed on the collar 30 of tightening the body of rod 10 again by the rack 40 that an above connecting rod bar weldering knot forms, to form a support frame structure, this structure and rack 40 formed loading ends are available for users to put various article and use; And it can be inserted in a gag 80 in the mouth of pipe place on support rod body 10 tops, so as to covering the dew vacancy of this body of rod, also can establish wheel pedestal 90 in addition,, make the combine component structure that forms a metal framework so that integrally-built activity slippage effect to be provided in support bar 10 terminal locks.

Aforesaid metal framework combining structure, glove framework wherein is owing to be to be mounted on the support rod body annular groove by this sleeve pipe and collar, its restriction is positioned the mode of annular groove, and need to tighten by collar, glove framework extension group can't be established and its member miscellaneous because glove rack regular meeting twists because of plane deformation, so understand perk after having segment angle to fall within installing, and deviate from this collar, so that can't reach the effect of location; In addition, this commodity shelf structure in support rod body mouth of pipe place only by a gag upper shield, its only tool cover up effect, there is no the effect of effective location, and general user is when this rack of carrying, habituation is to lift or hold up the glove framework of the superiors, cause the rack sleeve pipe to push this gag so that deviate from, and influence the structural strength of rack, in the time of seriously even cause the rack sleeve pipe to deviate from support rod body, cause commodity shelf structure to get loose, and can't reach the effect of rack.

Summary of the invention

Technical problem to be solved by this invention is to propose a kind of multi-combination positioning device of metal framed cabinet at the deficiencies in the prior art, it mainly is by a taper joint seat, taper card fastening bit slice and mushroom type detent plug seat, so as to replacing functions such as improvement collar and gag, so mechanism's combination, make overall structure can reach the economization benefit of economization spare part, and it has diversity assembling mode and the characteristic of being convenient to install, and the user is provided a preferable locating effect, have the multi-combination positioning device of metal framed cabinet function of practical effect.

Technical problem to be solved by this invention is to be achieved through the following technical solutions:

A kind of multi-combination positioning device of metal framed cabinet, this cabinet frame body are formed to constitute and are comprised at least:

One support rod body, the tool that supplies rack to wear is provided with the upper and lower body of rod phase interlocking of internal diameter whorl and establishes binding; One glove framework each with the default sleeve pipe in it and be provided with the clamping collar of forming cabinet body framework that wears for the body of rod; One taper card fastening bit slice, be one to be provided with tool that it is symmetrical two lamellar body combined shaped to ending bead, its inwall also is provided with for build-in in the ring rib of support rod body annular groove, and it also makes rack be the fixing only bead of supporting in this sleeve bottom to be provided with along tool at the bottom of the lamellar body after wearing mutually for support rod body and rack sleeve pipe; Form the metal framework composite set with upper member.

Better, its positioner of being located at edge, body of rod top is a kind of mushroom type detent plug seat, its below has the obturating plug of screw thread, this mushroom type detent plug seat lock is established into the support rod body opening part, the apical margin of this mushroom type detent plug seat supports and only locks with screw rod, between the body of rod and framework the taper of a set taper card fastening bit slice fastening with the multiple fastening location that supports to arrive in of support ending bead, the glove framework is covered support rod body and is revealed the vacancy.

Wherein, its positioner of being located at edge, body of rod top is a kind of mushroom type detent plug seat, its below has the obturating plug of screw thread, this mushroom type detent plug seat lock is established into the support rod body opening part, the apical margin of this mushroom type detent plug seat supports and only locks with screw rod, between the body of rod and framework the taper of a set taper card fastening bit slice fastening with the multiple fastening location that supports to arrive in of support ending bead, the glove framework is covered support rod body and is revealed the vacancy.

In addition, a kind of multi-combination positioning device of metal framed cabinet, this cabinet is made up of an above support rod body and an above metal framework, the support rod body metal frame that stretches through is put up cabinet frame body shape, one taper joint seat is located between two support rod body or the support rod body bottom, it is established and is one-body molded hollow and is provided with sloped footing, the inner tool of this base is provided with screw thread, and this base bottom and side direction projection have to the not-go-end edge, and base upper end and extension are provided with threaded shank, this sloped footing is locked the support rod body bottom, the glove frame sleeve is inserted in this taper joint seat again, the shape of its taper strengthens fixes this commodity shelf structure.

Further, this is located at the taper joint seat of support rod body, add a full tooth screw rod in base inner screw place, this taper joint seat has screw rod in both sides up and down, its both sides screw rod links mutually with support rod body up and down, form one and have the composite set of multi-functional mode of connection, and form a metal framework composite set.

Learn that by above explanation the present invention compared with prior art can reach following effect really:

1, combining structure is simplified: by the design of taper joint seat of the present invention, to replace the functions such as collar of prior art structure, make overall structure can reach the improvement benefit.

2, the preferable positioning function of tool: because multi-functional joint seat of the present invention is to be set as a taper cylinder that is the tubing string shape, for with the body of rod, member binding groups such as pulley base are established, and it is urgent by its taper, so as to the strong positioning supports body of rod and rack sleeve pipe, the design that has screw thread in addition by mushroom type detent plug seat, make to lock onto support rod body, and fixing rack frame structure simultaneously, and the group of being somebody's turn to do taper joint seat or taper card fastening bit slice is thoroughly established, it makes each layer framework location correct, it can not produce the awkward situation that can't close the door after combination adds door-plate, have preferable locating effect.

3, multi-functional binding: because taper joint seat of the present invention has multifarious group and establishes mode, it can provide the binding between the body of rod, and can link with devices such as adjusting pin or pulley base, has multi-functional binding effect.

4, be convenient to install: by the screw thread design that taper joint seat of the present invention and mushroom type detent plug seat are adopted, it is simple that its group is established mode, is convenient to user's installation.

Description of drawings

Fig. 1 is the three-dimensional combination figure of multi-combination positioning device of metal framed cabinet of the present invention.

Fig. 2 is the three-dimensional exploded view of multi-combination positioning device of metal framed cabinet of the present invention.

Fig. 3 is the enforcement illustration of taper card fastening bit slice of the present invention and rack thimble joint.

Fig. 4 is another enforcement illustration of taper card fastening bit slice of the present invention and rack thimble joint.

Fig. 5 combines its another enforcement illustration for taper card fastening bit slice of the present invention with screw rod.

Fig. 6 is the part sectioned view of taper joint seat of the present invention by full tooth bolt and support rod body binding.

Fig. 7 is the three-dimensional exploded view of combine component of the present invention and the binding of snap-on spare.

Fig. 8 is the assembled sectional view of combine component of the present invention and snap-on spare.

Fig. 9 links the part sectioned view of adjusting pin for metal framework of the present invention.

Figure 10 links the part sectioned view of wheel pedestal for metal framework of the present invention.

Figure 11 is the present invention's hanging cupboard textural association schematic diagram.

Figure 12 is another enforcement illustration of metal framework of the present invention.

Figure 13 is the profile of taper joint seat of the present invention application implementation.

Figure 14 is another profile of taper joint seat of the present invention application implementation.

Figure 15 is the combine component part sectioned view of prior art metal framework top.

Figure 16 establishes the part sectioned view of assembly pulley for prior art metal framework below group.

The figure number explanation:

A ... multi-combination positioning device of metal framed cabinet B ... the hanging cupboard structure

10 ... support rod body 11 ... last screw rod 111 ... annular groove 12 ... following screw rod 13 ... pole

14 ... connecting rod 141 ... sleeve pipe 15 ... the ring short slot

20 ... taper joint seat 201 ... support not-go-end edge 202 ... base 203 ... screw rod 204 ... internal thread

205 ... support rim surface 206 ... rim surface 21 ... taper joint seat 211 ... support not-go-end edge 212 ... base

213 ... screw rod 214 ... internal thread 215 ... support rim surface 216 ... rim surface 22 ... the taper joint seat

221 ... support not-go-end edge 222 ... base 223 ... screw rod 224 ... internal thread 225 ... fin

226 ... outside bead 23 ... taper joint seat 231 ... ring-like base 232 ... base

233 ... screw rod 234 ... internal thread 235 ... fin 236 ... outside bead 24 ... full tooth screw rod

25 ... gag 26 ... pulley body 261 ... snap-on spare 262 ... hook part 27 ... adjust pin

271 ... double-screw bolt 28 ... pulley body 281 ... double-screw bolt 30 ... collar 31 ... taper card fastening bit slice

311 ... ring rib 312 ... support not-go-end edge 313 ... support and end rib 32 ... in conjunction with screw rod

321 ... thread 322 ... bead

40 ... glove framework 41 ... sleeve pipe 411 ... upper limb face 412 ... caulking groove 413 ... caulking groove

50 ... mushroom type detent plug seat 51 ... support edge 52 ... screw rod

60 ... hook 61 ... hook part 62 ... perforation

70 ... spiral cover 71 ... screw rod

80 ... gag 90 ... the wheel pedestal

The specific embodiment

Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is further specified.

See also illustrated in figures 1 and 2, the present invention is a kind of multi-combination positioning device of metal framed cabinet A, the formation of this integrated positioning device comprises an above support rod body 10 at least, one with upper conical joint seat 20, tapered card fastening bit slice 31 more than one, an above glove framework 40 and 50 compositions of an above mushroom type detent plug seat, wherein, this rack support rod body 10 is combined in the locking mode with following screw rod 12 by screw rod 11 on, this support rod body outer rim also is provided with more than one annular groove 111, tapered card fastening bit slice 31 (for the collar shape) for a symmetry combination is and tightens sheathed usefulness, and wherein by a taper joint seat 20 designs, the hollow taper pedestal that it is formed in one, its sloped footing 202 side direction projections are provided with to not-go-end edge 201, and base 202 inside are provided with internal thread 204, and in base 202 tops and extended screw rod 203, the internal diameter of its base internal thread 204 is greater than the internal diameter of screw rod 203, its joining place just forms one and supports rim surface 205, it can be locked on this taper joint seat 20 support rod body 10 bottoms, again with rack sleeve pipe 41 directly and sloped footing 202 sheathed mutually, urgent by its taper, to reach the effect of fastening location, can save collar 30 devices in the prior art structure, group by taper joint seat 20 of the present invention is established, because its group is established the bottom that the position can directly be mounted on support rod body 20, so glove framework 40 can be arranged in support rod body 10 lowermost ends, just can increase the space of setting up of glove framework 40, and can be inserted in a gag 25 in these taper joint seat 20 bottoms, so as to covering the exposed part of this joint seat 20; Present invention be primarily characterized in that:

Referring to shown in Figure 3, it is that a taper card fastening bit slice 31 is tightened in the annular groove 111 of last screw rod 11, this taper card fastening bit slice 31 is the taper sheath structure that two lamellar body inserted types are formed, its inwall also is provided with ring rib 311, be provided with to not-go-end edge 312 in its taper root edge outside formation, it also forms to be provided with in this taper card fastening bit slice 31 upper limbs outside and supports only rib 313, and if rack sleeve pipe 41 upper limb inside are provided with corresponding caulking groove 412, rack sleeve pipe 41 combined covers are located on this taper card fastening bit slice 31, this sleeve pipe 41 is removed borrow the supporting of not-go-end edge 312 of supporting of lower end to end, its upper end also can be borrowed to ending rib 313 and replace, can provide one to have the ring rib, support the not-go-end edge, support the three taper card fastening bit slices 31 that reset that end rib, make this sleeve pipe 41 must borrow taper card fastening bit slice 31 to reach effective card fastening position effect; Again referring to shown in Figure 4, it also can be if this taper card fastening bit slice 31 only forms in its taper root edge outside is provided with to not-go-end edge 312, be not provided with the rack sleeve pipe of caulking groove applicable to general apical margin, be located on this taper card fastening bit slice 31 for rack sleeve pipe 41 combined covers, and support to terminate in and fix to not-go-end edge 312; And in addition again by mushroom type detent plug seat 50 positioners of the present invention: promptly a below has detent plug seat 50 designs of screw rod 52, it is from top to bottom locked establish into support rod body 10, and by these mushroom type detent plug seat 50 tops support edge 51 just cover be placed on this rack sleeve pipe upper limb faces 411, so just can be by its locking and the dual locate mode of replacing, so that the user to be provided splendid strong positioning function, make structure can not cause lid to deviate from and influence the disappearance of textural association intensity because the user moves rack.

Again referring to shown in Figure 5, it can borrow one to establish to link with lock in conjunction with screw rod 32 and go up screw rod 11 and screw rod 12 down, this is in conjunction with screw rod 32 on it, the lower end outer shroud encloses is equipped with isometrical thread 321, and enclose in its stage casing ring and to be equipped with a bead 322, this bead 322 slightly protrudes in thread 321, can supply with last, following screw rod 11,12 the end, the mutual interlocking of internal thread that the top is inner set, make, following screw rod 11,12 with combine 322 of screw rod beads be formed with one the ring short slot 15, the taper card fastening bit slice 31 that again an inwall is provided with ring rib 311 is to tighten in last, in the ring short slot 15 between following screw rod, rack sleeve pipe 41 combined covers are located on this card fastening bit slice 31, and can borrow and support not-go-end edge 312 and end fixing to ending supporting of rib 313, wherein, this ring rib 311 forms with bead 322 and replaces mutually, to reach the effect of firm support inlay card, can avoid that rack 40 is powerful to be impacted down, the ring rib 311 that causes card fastening bit slice 31 can't support and deviate from the disappearance of downslide.

Referring to shown in Figure 6, it can lock a full tooth bolt 24 in the bottom taper joint seat of the present invention 20, its upper and lower side can be linked with upper and lower screw rod 11,12 respectively, the sheathed of glove framework 40 sleeve pipes 41 of arranging in pairs or groups again, form one and can link the joint seat of screw rod up and down, can reach the effect that installing is extended.

In addition wherein, shown in Fig. 7,8, it can from bottom to top embed it wheel pedestal 26 with snap-on spare 261 connecting ends in this taper joint seat 20, end by 261 of its base and snap-on spares supports rim surface 205 along supporting to arrive in the taper joint seat, and the top end face 206 that is butted on taper joint seat 20 is colluded in the hook part 262 that makes this snap-on spare 261, with chimeric this tool snap-on spare 261 joint seats of fixing, make effect with slip; As Fig. 9, shown in 10, it can be executed taper joint seat of the present invention 21 and be provided with a ring-like base 211 with downward extension lengthening, so as to promoting its structural strength, so that have preferable support force when being mounted on the rack bottom, and the internal thread 214 of these sloped footing 21 inside also extends to these ring-like base 211 bottoms, it can have double-screw bolt 271 with one, 281 adjustment pin 27 or wheel pedestal 28, its double-screw bolt is from bottom to top locked this taper joint seat 21 inside, and its wheel pedestal 26 that also this can be had snap-on spare 261 is applied to have the taper joint seat 21 of ring-like base 211 according to this, more than forming provides the user to adjust pin 27 adjusting integrally-built height by rotation, or adds the effect of pulley body 28 with the tool slip.

Can form the commodity shelf structure A of the strong location of a tool by taper joint seat 20 of the present invention, taper card fastening bit slice 31 and mushroom type detent plug seat 50, it can be had and establishes mode with the implementation group, see also shown in Figure 11, be embodiments of the invention figure, the setting of its collocation hook 60, make by a hook part 61 and trigger glove framework A with last hook 60 1 ends, hook 60 dististyle body in addition 62 is fixedly arranged on metope or suitable supporting surface by boring a hole, to form the structural design of a hanging cupboard B, commodity shelf structure is presented in the mode that has.

Another embodiment of the present invention is that the glove framework is done setting up of flexibility, it is similar to the happy high group of furniture and establishes mode, with the extension combination that an above glove framework and the more than one body of rod can be done, as by shown in Figure 12 and Figure 13-14, it is up-small and down-big for a kind of frame depth and the intermediate layer is the empty glove frame structure of dew, the framework that this kind is up-small and down-big, because the shearing at the seat of honour is fully stressed in pole 13, if only bear and support top glove framework by pole 13, the hypodynamic misgivings of support are probably arranged, therefore the setting of support seat must be arranged, it is that each weldering of connecting rod 14 upper and lower sides of certain predetermined angular is had a sleeve pipe 141, its upper sleeve portion 141 is from bottom to top sleeve pipe 141 to be locked on glove frame sleeve 41 by the spiral cover 70 that an end has a screw rod 71 to connect taper joint seat 22 bases of establishing 222, and the casing pipe sleeve 141 of its lower end gone into to be mounted on taper joint seat 22 on the support rod body 13, so as to linking with the glove framework, have the support base device of strong support with formation, the glove framework is extended;

Again wherein, shown in Figure 12-14, base 222 sides of this taper joint seat 22 are the semi-ring arcuation fin 225 that is oppositely arranged along projecting upwards into rare one group, caliber filling up than rhabdites 10 and 41 spaces of sleeve pipe can be provided, and be provided with outside bead 226 in these fin 225 tops, and be relatively set with caulking groove 413 if connect the sleeve pipe 41 upper limb inside of establishing with it, for setting the location mutually with outside bead 226, by this fin 225 and the outwards design of bead 226, the effect of one firm clamping and inlay card location can be provided, this taper joint seat 22 is had to not-go-end edge 221 to be replaced, triple strong fix effects of screw rod 223 lockings and fin 225 clampings location, this fin and the outside design of bead simultaneously also can be applied on the taper joint seat 23 that the present invention has ring-like base 231, so that the strong fix effect of body of rod end to be provided according to this; In view of the above, the taper joint seat 22 that the present invention has a fin 225 can be used according to this to link and be arranged in the phase mutual connection section of establishing between each body of rod, or makes taper link sheet 23 to be mounted on body of rod bottom, to make the effect that reaches strong fix, really can reach the practicality benefit.

It should be noted that, the above is the know-why that specific embodiments of the invention are used, if the change of doing according to conception of the present invention, when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should close and give Chen Ming within the scope of the invention.

Claims (13)

1, a kind of multi-combination positioning device of metal framed cabinet is characterized in that: the cabinet frame body is formed to constitute and is comprised at least:

One support rod body, the tool that supplies rack to wear is provided with the upper and lower body of rod phase interlocking of internal diameter whorl and establishes binding;

One glove framework each with the default sleeve pipe in it and be provided with the clamping collar of forming cabinet body framework that wears for the body of rod;

One taper card fastening bit slice, be one to be provided with tool that it is symmetrical two lamellar body combined shaped to ending bead, its inwall also is provided with for build-in in the ring rib of support rod body annular groove, and it also makes rack be the fixing only bead of supporting in this sleeve bottom to be provided with along tool at the bottom of the lamellar body after wearing mutually for support rod body and rack sleeve pipe;

Form the metal framework composite set with upper member.

2, a kind of multi-combination positioning device of metal framed cabinet, this cabinet is made up of an above support rod body and an above metal framework, and the support rod body metal frame that stretches through is put up cabinet frame body shape, it is characterized in that:

One taper joint seat is located between two support rod body or the support rod body bottom, it is established and is one-body molded hollow and is provided with sloped footing, the inner tool of this base is provided with screw thread, and this base bottom and side direction projection have to the not-go-end edge, and base upper end and extension are provided with threaded shank, this sloped footing is locked the support rod body bottom, the glove frame sleeve is inserted in this taper joint seat again, the shape of its taper strengthens fixes this commodity shelf structure.

3, multi-combination positioning device of metal framed cabinet according to claim 2, it is characterized in that: this is located at the taper joint seat of support rod body, add a full tooth screw rod in base inner screw place, this taper joint seat has screw rod in both sides up and down, its both sides screw rod links mutually with support rod body up and down, form one and have the composite set of multi-functional mode of connection, and form a metal framework composite set.

4, multi-combination positioning device of metal framed cabinet according to claim 1, it is characterized in that: its positioner of being located at edge, body of rod top is a kind of mushroom type detent plug seat, its below has the obturating plug of screw thread, this mushroom type detent plug seat lock is established into the support rod body opening part, the apical margin of this mushroom type detent plug seat supports and only locks with screw rod, between the body of rod and framework the taper of a set taper card fastening bit slice fastening with the multiple fastening location that supports to arrive in of support ending bead, the glove framework is covered support rod body and is revealed the vacancy.

5, metal cupboard frame Multiple Combination positioner according to claim 1, it is characterized in that: this taper card fastening bit slice apical margin outside is provided with to ending rib, the mutual build-in of not-go-end edge that supports of its root edge clips, rack sleeve pipe apical margin inboard is provided with relative caulking groove, and the glove framework gets and firmly is sheathed on the taper card fastening bit slice.

6, metal cupboard frame Multiple Combination positioner according to claim 1, it is characterized in that: one establishes the last screw rod of binding in conjunction with screw rod with lock reaches screw rod down, this is provided with thread in conjunction with its upper and lower end of screw rod and central projection is provided with bead, be formed with a ring short slot between upper and lower screw rod and this bead, one inwall is provided with the taper card fastening bit slice of ring rib to tighten in the ring short slot between upper and lower screw rod, and this ring rib and bead form firm support inlay card and replace mutually.

7, metal cupboard frame Multiple Combination positioner according to claim 1 is characterized in that: the sleeve pipe that this taper card fastening bit slice is provided with door-plate wears to be established, and its taper is fastening and support supporting to arrive in of not-go-end edge, forms firm support location.

8, according to claim 2 or 4 described multi-combination positioning device of metal framed cabinet, it is characterized in that: this a taper joint seat and a mushroom type detent plug seat assemble the commodity shelf structure of binding, its framework one side triggers by the hook part of hook sheet and supports this glove framework, and this hook sheet in addition end be fixedly arranged on metope by perforation, become a hanging cupboard.

9, multi-combination positioning device of metal framed cabinet according to claim 2, it is characterized in that: the base side of this taper joint seat is provided with one group along the projection that makes progress and is the fin that is oppositely arranged, and be provided with outside bead in this fin top, it is applied to according to this that each body of rod is established the place indirectly or in body of rod bottom, and it is established and links sleeve pipe upper limb inside that seated connection establishes with this taper and be relatively set with for being the set outside bead of semi-ring arcuation fin with the taper joint seat and be the caulking groove of setting location and firm clamping location mutually.

10, multi-combination positioning device of metal framed cabinet according to claim 2 is characterized in that: the bottom of taper joint seat embeds a gag.

11, multi-combination positioning device of metal framed cabinet according to claim 2, it is characterized in that: this taper joint seat in base extend downwards be provided with an external diameter than sloped footing for big and have a ring-like base of identical internal thread, this taper joint seat screw rod lock is established the mouth of pipe place into the support rod body bottom, the glove frame sleeve with locate this sheathed location of taper joint seat for rack, establish into adjustment pin or pulley body in sloped footing below lock.

12, multi-combination positioning device of metal framed cabinet according to claim 11, it is characterized in that: the bar portion that this adjustment pin or pulley body and taper joint seat link, the connecting end that has snap-on spare for the upper end, it embeds the joint seat bottom, by the end between its base and snap-on spare along the rim surface of supporting that supports to arrive in the taper joint seat, and the top end face that is butted on the taper joint seat is colluded in the hook part of snap-on spare, chimeric this tool snap-on spare joint seat of fixing.

13, multi-combination positioning device of metal framed cabinet according to claim 1, it is characterized in that: one with upper support bar and glove framework and taper card fastening bit slice structure tool, add and extend that to form a tool degree of depth be the up-small and down-big and middle rack that only has a left and right sides pole to support, and the support bar in this intermediate layer links by connecting rod and the glove framework that a predetermined angle and upper and lower side weldering have sleeve pipe, it utilizes a spiral cover with screw rod, from bottom to top will go up sleeve pipe links with the taper joint seat that links the glove frame sleeve, and its setting of casing is directly to be sheathed on the taper joint seat that is mounted on pole, becomes an extendible commodity shelf structure.

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