CN212642558U - Portable staircase of interior decoration - Google Patents

Abstract

The utility model relates to a portable staircase of interior decoration, it includes two top mutual articulated ladder leg units, every ladder leg unit includes pole setting and horizontal rigid coupling in two that are parallel to each other and vertical setting a plurality of first horizontal poles that evenly arrange about and in the pole setting, every the cover is equipped with a sleeve in the pole setting, the sleeve face court one side of first horizontal pole is provided with the mouth that slides that supplies first horizontal pole to reciprocate, the sleeve is followed first horizontal pole length direction evenly is provided with a plurality of fixed slots from top to bottom, every the fixed slot cooperation be provided with one with the second horizontal pole of joint, two can be dismantled to the fixed slot still be connected with the spacing subassembly that is used for maintaining overall stability between the ladder leg unit. The utility model discloses portable's effect has.

Description

Portable staircase of interior decoration

Technical Field

The utility model belongs to the technical field of the technique of interior decoration apparatus and specifically relates to a portable staircase of interior decoration is related to.

Background

At present, interior decoration often needs the operation of ascending a height, and the operation instrument of ascending a height just need assisting with the help of ladders etc. of ascending a height, what often used is exactly the double ladder, and the double ladder generally includes two ladder leg units that play the supporting role and be the herringbone and set up, then constructor can climb up the ladder and carry out the effect of eminence, very big has made things convenient for actual construction production work.

Referring to fig. 1, the existing herringbone ladder comprises two ladder leg units 1, wherein the two ladder leg units 1 are hinged together at the ends, the hinging of the two ladder leg units 1 is realized through a common rotating shaft in production, each ladder leg unit 1 comprises two vertical rods 10 which are parallel to each other and are vertically arranged and a plurality of first cross rods 11 which are horizontally and fixedly connected to the two vertical rods 10 and are uniformly arranged from top to bottom, and a rope is connected between the two first cross rods 11 at the same height in the two ladder leg units 1 in a binding manner and used for maintaining the stability of the standing herringbone ladder.

The escalator is convenient to use and widely applied to climbing operation in actual life.

The above prior art solutions have the following drawbacks: because the height of the indoor roof is higher than that of a human body, in order to meet the requirement of high-altitude operation of constructors, the length of the upright rod 10 of the herringbone ladder is also relatively longer; however, the space of the place such as the corridor, the elevator room or the room door is limited, so that the construction personnel is inconvenient to turn with the escalator, and other objects are easy to be accidentally scraped and damaged.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a portable staircase of interior decoration, it has portable's effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a portable staircase of interior decoration, includes two top mutual articulated ladder leg units, every ladder leg unit includes two poles setting and horizontal rigid coupling in two that are parallel to each other and vertical setting evenly arrange a plurality of first horizontal poles, its characterized in that about and in the pole setting: every the cover is equipped with a sleeve in the pole setting, the sleeve face court one side of first horizontal pole is provided with the mouth that slides that supplies first horizontal pole to reciprocate, the sleeve is followed first horizontal pole length direction evenly is provided with a plurality of fixed slots from top to bottom, every the fixed slot cooperation be provided with one with the second horizontal pole of joint, two can be dismantled to the fixed slot the spacing subassembly that is used for maintaining overall stability still is connected with between the ladder leg unit.

Through adopting above-mentioned technical scheme, constructor takes two ladder leg units out from the sleeve, then go into a plurality of fixed slots that correspond with a plurality of second horizontal pole card, the bottom sprag of pole setting is at the top of a second horizontal pole of top, the connection effect through spacing subassembly makes two ladder leg units relatively fixed, constructor can step on the ladder construction afterwards, after the construction is accomplished, take off a plurality of second horizontal poles, ladder leg unit income sleeve, compare prior art, can reduce half length of ladder, so this technical scheme has portable's characteristics.

The present invention may be further configured in a preferred embodiment as: the vertical guide bar that is provided with on the telescopic inner wall, the pole setting corresponds be provided with on the lateral wall of guide bar with the guide bar complex guiding groove that slides.

Through adopting above-mentioned technical scheme, the relative guide bar of guiding groove slides, and the guide bar can play lateral displacement's limiting action to the dead man to it is more stable when making ladder leg unit remove.

The present invention may be further configured in a preferred embodiment as: spacing subassembly includes perpendicular rigid coupling in one the ladder leg unit corresponds first gag lever post, rigid coupling on the sleeve lateral wall in the gag lever post is kept away from the baffle of sleeve one end with rotate connect in limiting plate on the gag lever post, the limiting plate is kept away from the one end of first gag lever post is provided with a spacing hole, another in the ladder leg unit correspond on the sleeve the perpendicular rigid coupling in position in spacing hole has a second gag lever post, works as spacing hole with during the second gag lever post joint, two ladder leg unit fixed connection.

Through adopting above-mentioned technical scheme, constructor rotates the limiting plate, then with spacing pore pair second gag lever post on the limiting plate and insert the second gag lever post, can make two ladder leg units relatively fixed.

The present invention may be further configured in a preferred embodiment as: the first limiting rod is sleeved with a limiting spring, the limiting spring is located between the baffle plates, and the limiting spring has a tendency of driving the limiting plates to be far away from the baffle plates.

Through adopting above-mentioned technical scheme, under spacing spring's the effect of ordering about, can make the limiting plate more firm when inserting on the second gag lever post, be difficult for droing to the holistic stability of ladder has been increased.

The present invention may be further configured in a preferred embodiment as: the same two in the ladder leg unit correspond on two lateral walls that the sleeve carried on the back mutually the position of fixed slot respectively the rigid coupling has a connecting plate, it has a connecting rod to slide on the connecting plate, the connecting rod is kept away from the one end of connecting plate with the second horizontal pole is articulated.

By adopting the technical scheme, the connecting plate and the connecting rod connect the sleeve and the second cross rod, so that the second cross rod can be conveniently installed, and the second cross rod can be turned over to be abutted against the side wall of the sleeve in the process of moving the ladder leg unit up and down, so that the ladder leg unit can not be moved and can be conveniently collected.

The present invention may be further configured in a preferred embodiment as: set up first groove and the second groove of sliding along its length direction on the connecting plate, the diameter in second groove of sliding is less than first groove of sliding, the diameter of connecting rod with the second groove adaptation of sliding, the connecting rod is kept away from the one end rigid coupling of second horizontal pole have one with the sliding block of first groove diameter adaptation of sliding and sliding connection, the restriction in second groove of sliding the sliding block shifts out first groove of sliding, the sliding block with first groove of sliding is kept away from it has a first extension spring to go back the rigid coupling between the cell wall in second groove of sliding, first extension spring has orders about the sliding block is to being close to first groove of sliding is kept away from the trend that the cell wall direction in second groove of sliding removed.

Through adopting above-mentioned technical scheme, the first groove of sliding block and connecting rod on the connecting plate slides, and the second groove of sliding has restricted the first groove of sliding block roll-off, and under the taut effect of first extension spring, the second horizontal pole of installing behind the fixed slot can be more firm, but the second horizontal pole elasticity supports tightly on telescopic lateral wall when not installing simultaneously, has better stability.

The present invention may be further configured in a preferred embodiment as: be provided with the joint groove on the lateral wall of pole setting bottom, the sleeve bottom corresponds the position in joint groove is provided with one and is used for the embedding the joint groove is fixed the joint subassembly of pole setting, the joint subassembly includes the joint pole, the joint pole is worn to locate on the telescopic lateral wall, works as the joint pole embedding during the joint groove, the pole setting with sleeve fixed connection.

Through adopting above-mentioned technical scheme, when the pole setting was received in the sleeve, can be with joint pole embedding joint inslot to fixed pole setting, restriction it shifts out the sleeve, thereby avoided constructor to carry the ladder in-process, ladder leg unit inadvertent roll-off.

The present invention may be further configured in a preferred embodiment as: the clamping component further comprises a guide cylinder which is sleeved on the clamping rod and fixedly connected with the outer wall of the sleeve, a protective cap is sleeved on the guide cylinder, the clamping rod is fixedly connected with the protective cap, a second tension spring is further arranged in the protective cap and fixedly connected with the outer wall of the sleeve, and the second tension spring has a tendency of driving the protective cap to move towards the sleeve.

Through adopting above-mentioned technical scheme, under the effect of second extension spring, the joint pole can be more stable imbed in the joint groove, when the pole setting was shifted out to needs, only need stimulate the protective cap can, the protective cap has played the effect of protection joint pole, makes the joint pole more stable simultaneously and slides on the sleeve.

The present invention may be further configured in a preferred embodiment as: telescopic bottom articulates there is supplementary supporting component, supplementary supporting component include one end with first backup pad and rigid coupling that telescopic outer wall articulated and vertical setting in first backup pad keeps away from its hinged end and transversely sets up the second backup pad.

Through adopting above-mentioned technical scheme, prop up the back when constructor with the ladder, supplementary supporting component can overturn downwards makes second backup pad and ground contact, can increase the area of contact of ladder and ground like this, makes the ladder more stable.

The present invention may be further configured in a preferred embodiment as: the sleeve bottom is provided with the holding tank, horizontal rotation supports has a dwang in the holding tank, it has an universal wheel to go back the rigid coupling on the dwang.

Through adopting above-mentioned technical scheme, when constructor needs short distance to remove the ladder, can directly rotate out the universal wheel in the sleeve to promote the ladder walking, and need not carry the ladder, make constructor more laborsaving.

To sum up, the utility model discloses a following at least one useful technological effect:

1. compared with the prior art, the technical scheme has the characteristic of convenience in carrying by arranging the sleeve, the second cross rod and the limiting assembly;

2. the connecting plate and the connecting rod are arranged to connect the sleeve and the second cross rod, so that the second cross rod can be conveniently installed, and meanwhile, in the process of moving the ladder leg unit up and down, the second cross rod can be turned over to be abutted against the side wall of the sleeve, so that the movement of the ladder leg unit cannot be influenced, and the collection is convenient;

3. through setting up joint subassembly and joint groove, when the pole setting was taken in the sleeve, can be with joint pole embedding joint inslot to fixed pole setting, restriction it shifts out the sleeve, thereby avoided constructor to carry the ladder in-process, ladder leg unit inadvertent roll-off.

Drawings

Fig. 1 is a schematic structural view of a prior art escalator;

fig. 2 is a schematic view of the portable staircase for interior decoration according to the present invention when it is carried;

fig. 3 is a schematic view of an interior decoration portable escalator in use according to the present invention;

FIG. 4 is a schematic view of the connector assembly;

FIG. 5 is a schematic view of the structure showing the position limiting assembly;

FIG. 6 is a schematic view of the clamping assembly;

fig. 7 is a schematic view showing the structure of the auxiliary support assembly and the universal wheel.

In the figure, 1, a ladder leg unit; 10. erecting a rod; 100. a guide groove; 101. a clamping groove; 11. a first cross bar; 2. a sleeve; 20. a sliding port; 21. fixing grooves; 22. a guide strip; 23. accommodating grooves; 24. rotating the rod; 3. a second cross bar; 30. a support bar; 4. a connecting assembly; 40. a connecting plate; 400. a first sliding groove; 401. a second sliding groove; 41. a screw; 42. a connecting rod; 420. a sliding block; 43. a first tension spring; 5. a limiting component; 50. a first limit rod; 51. a baffle plate; 52. a limiting spring; 53. a limiting plate; 530. a limiting hole; 531. extending the cannula; 54. a second limiting rod; 55. a third limiting rod; 6. a clamping assembly; 60. a guide cylinder; 61. a protective cap; 62. a clamping and connecting rod; 63. a second tension spring; 7. an auxiliary support assembly; 70. a first support plate; 71. a second support plate; 72. a rubber pad; 8. a universal wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, in order to disclose the portable staircase for interior decoration of the present invention, the portable staircase comprises two ladder leg units 1 with hinged ends, wherein two ladder leg units 1 are hinged together by a common rotating shaft in production, each ladder leg unit 1 comprises two vertical rods 10 which are parallel to each other and vertically arranged and a plurality of first cross rods 11 which are horizontally and fixedly connected to the two vertical rods 10 and are uniformly arranged from top to bottom; each upright rod 10 is sleeved with a sleeve 2, the sleeve 2 is of a hollow cylinder structure with two open ends, a sliding opening 20 along the length direction of the sleeve 2 is formed in the side wall of the sleeve 2 facing the first cross rod 11, the first cross rod 11 slides up and down through the sliding opening 20, a guide strip 22 is fixedly connected to the inner wall of the sleeve 2 along the length direction of the sleeve, a guide groove 100 is formed in the side wall of the upright rod 10 corresponding to the guide strip 22, and the guide strip 22 is matched with and connected with the guide groove 100 in a sliding manner; be provided with a plurality of fixed slots 21 of evenly arranging from top to bottom on sleeve 2 along the length direction of first horizontal pole 11, and cooperation fixed slot 21 is provided with a plurality of second horizontal poles 3 of evenly arranging from top to bottom, and joint can be dismantled with fixed slot 21 to second horizontal pole 3, and it is connected with a coupling assembling 4 still to divide between two lateral walls that second horizontal pole 3 and two sleeves 2 in corresponding ladder leg unit 1 carried on the back mutually.

Referring to fig. 3 and 4, the connection assembly 4 includes a connection plate 40, a screw 41 and a connection rod 42, the connection plate 40 is transversely disposed and fixedly connected to the sidewall of the sleeve 2 through the screw 41, a first sliding groove 400 and a second sliding groove 401 are sequentially disposed on the connection plate 40 along a direction away from the screw 41, the diameter of the first sliding groove 400 is larger than that of the second sliding groove 401, and the second sliding groove 401 communicates the first sliding groove 400 with the outside along the length direction thereof; the connecting rod 42 is matched with the second sliding groove 401 and is in sliding connection with the second sliding groove 401; a sliding block 420 matched with and connected with the first sliding groove 400 in a sliding manner is fixedly connected to one end, close to the first sliding groove 400, of the connecting rod 42, the second sliding groove 401 limits the sliding block 42 to move out of the first sliding groove 400, two ends of the second cross rod 3 in the length direction are respectively and horizontally and fixedly connected with a supporting rod 30, the supporting rod 30 is perpendicular to the connecting rod 42, the supporting rod 30 penetrates through the connecting rod 42, and the supporting rod 30 is rotatably connected with the connecting rod 42; a first tension spring 43 is further disposed in the first sliding slot 400, one end of the first tension spring 43 is fixedly connected to a slot wall of the first sliding slot 400 far from the second sliding slot 401, and the other end of the first tension spring 43 is fixedly connected to the sliding block 420, and the first tension spring 43 has a tendency of driving the sliding block 420 to move towards a direction far from the second sliding slot 401.

Referring to fig. 3 and 5, a limiting assembly 5 for connecting the two leg units 1 is further arranged between the two leg units 1; the overall stability of the two ladder leg units 1 is improved by arranging the limiting assembly 5, and the limiting assembly 5 comprises a first limiting rod 50, a baffle 51, a limiting spring 52 and a limiting plate 53; the first limiting rod 50 is vertically and fixedly connected to the side wall of one side, away from the first cross rod 11, of the sleeve 2 of any one of the two ladder leg units 1, the first limiting rod 50 is located at the top of the sleeve 2, the baffle 51 is vertically and fixedly connected to one end, away from the sleeve 2, of the first limiting rod 50, the limiting plate 53 is a long strip plate, one end of the limiting plate 53 is arranged on the first limiting rod 50 in a penetrating mode and is rotatably connected with the first limiting rod 50, the other end of the limiting plate 53 is provided with a limiting hole 530, an extension sleeve 531 is fixedly connected to the position, rotatably connected with the first limiting rod 50, of the limiting plate 53, the position, close to the sleeve 2, of one side of the limiting plate 53 and the limiting hole 530, and the position, close to the sleeve 2, of one side of the limiting plate 53 and the; a second limiting rod 54 is vertically and fixedly connected to the side wall of the sleeve 2, corresponding to the limiting plate 53, of the other ladder leg unit 1, and when the limiting plate 53 is clamped on the second limiting rod 54 through the limiting hole 530, the two ladder leg units 1 are fixed together; a third limiting rod 55 for temporarily fixing the limiting plate 53 is also vertically and fixedly connected to the side wall of the same sleeve 2 as the first limiting rod 50; the limiting spring 52 is sleeved on the first limiting rod 50 and located between the baffle 51 and the limiting plate 53, the limiting spring 52 drives the limiting plate 53 to move towards the direction away from the baffle 51, and the limiting plate 53 can be firmly clamped on the second limiting rod 54 or the third limiting rod 55 through the elastic extrusion effect of the limiting spring 52.

Referring to fig. 3 and 7, an auxiliary support assembly 7 for assisting in supporting the ladder is further disposed at the bottom of the sleeve 2, the auxiliary support assembly 7 includes a first support plate 70, a second support plate 71 and a rubber pad 72, the first support plate 70 is vertically disposed and rotatably connected to the sleeve 2 through a round bar, and a friction force exists between the first support plate 70 and the sidewall of the sleeve 2; the second supporting plate 71 is vertically and fixedly connected with the first supporting plate 72, can be attached to the side wall of the sleeve 2 after the second supporting plate 72 is turned upwards to the limit, and can be attached to the ground after the second supporting plate 72 is turned downwards to the limit; the rubber pad 72 is adhered to the second support plate 71 at a side away from the first support plate 70, and functions to increase friction.

When the ladder need shift to another place from a place indoor, for the convenience constructor transports the ladder, the utility model discloses still be provided with universal wheel 8, be provided with the holding tank 23 that is used for holding universal wheel 8 in sleeve 2's bottom, at 23 internal rotation supports of holding tank has a dwang 24, universal wheel 8 and dwang 24 rigid couplings, universal wheel 8 uses dwang 24 to overturn from top to bottom as the axis.

The implementation principle of the embodiment is as follows: the constructor can take the ladder leg unit 1 into the sleeve 2 so that the length of the whole ladder is reduced, and then can carry the ladder to a place needing decoration indoors. A constructor firstly pulls the ladder leg unit 1 out of the sleeve 2, then turns over the plurality of second cross rods 3, and clamps the second cross rods 3 into the fixing grooves 21; under the action of the first tension spring 43, the second cross rod 3 is firmly fixed in the fixing groove 21, the ladder leg units 1 can be supported by the second cross rod 3 positioned at the top, then a constructor can take the limiting plate 53 down from the third limiting rod 55 and turn over to the position corresponding to the second limiting rod 54, then the limiting plate 53 is clamped on the second limiting rod 54, the two ladder leg units 1 are fixed immediately, and the integrity of the ladder is effectively improved; then, the constructor can turn the second supporting plate 71 downwards to enable the rubber pad 72 to be attached to the ground, so that the overall stability of the ladder can be improved; when the ladder is moved in a short distance, for example, the ladder is moved to another place from one indoor place, the universal wheels 8 can be directly rotated out of the accommodating groove 23 to be in contact with the ground, when the four universal wheels 8 are supported on the ground, a constructor can push the ladder to move forwards without carrying the ladder, and the constructor saves time and labor.

When the ladder leg unit 1 is put into the sleeve 2, a constructor topples and carries the ladder, and the ladder leg unit 1 can slide out of the sleeve 2 in the carrying process, so that the constructor is inconvenient to carry.

Referring to fig. 3 and 6, in order to solve the above problem, the present invention further designs a clamping assembly 6, wherein the clamping assembly 6 includes a guiding cylinder 60, a protecting cap 61, a clamping rod 62 and a second tension spring 63; a clamping groove 101 is formed in the side wall of the bottom of the vertical rod 10, the clamping rod 62 is arranged on the side wall of the bottom of the sleeve 2 in a penetrating mode corresponding to the clamping groove 101, the clamping rod 62 is matched with the clamping groove 101, an arc-shaped transition surface is arranged on the upper surface of the clamping end of the clamping rod 62, the vertical rod 10 can move downwards along the arc-shaped transition surface, and the clamping rod 62 is pushed to move towards the direction far away from the sleeve 2; the guide cylinder 60 is sleeved on the clamping rod 62 and fixedly connected to the side wall of the sleeve 2, the guide cylinder 60 is of a cylinder structure with two open ends, the protective cap 61 is of a cylinder structure with one open end, the inner diameter of the protective cap 61 is matched with the outer diameter of the guide cylinder 60, the protective cap 61 is sleeved on the guide cylinder 60, and the protective cap 61 is fixedly connected with the clamping rod 62; a second tension spring 63 is sleeved on the clamping rod 62, one end of the second tension spring 63 is fixedly connected with the protective cap 61, the other end of the second tension spring 63 is fixedly connected with the side wall of the sleeve 2, and the second tension spring 63 has a tendency of driving the clamping rod 62 to move towards the direction close to the clamping groove 101; when the clamping rod 62 corresponds to the clamping groove 101, the clamping rod 62 can be automatically clamped into the clamping groove 101, and then the ladder leg unit 1 and the sleeve 2 are fixed together.

The implementation principle of the clamping assembly 6 is as follows: during staff took ladder leg unit 1 into sleeve 2, the bottom of pole setting 10 ordered about joint pole 62 and outwards removed under the guide effect of the arc transition face of joint pole 62, then when joint pole 62 just to joint groove 101, joint pole 62 was automatic to be embedded into joint groove 101 to restricted pole setting 10 and outwards removed, made ladder leg unit 1 and sleeve 2 comparatively firm together fixed, increased stability and the convenience of ladder carrying in-process.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a portable staircase of interior decoration, includes two top mutual articulated ladder leg unit (1), every ladder leg unit (1) includes pole setting (10) and the horizontal rigid coupling in two that are parallel to each other and vertical setting a plurality of first horizontal poles (11) that evenly arrange about and on pole setting (10), its characterized in that: every the cover is equipped with one sleeve (2) on pole setting (10), sleeve (2) face court one side of first horizontal pole (11) is provided with the mouth (20) that slides that supplies first horizontal pole (11) to reciprocate, sleeve (2) are followed first horizontal pole (11) length direction is last evenly to be provided with a plurality of fixed slots (21), every fixed slot (21) cooperation be provided with one with second horizontal pole (3) of joint can be dismantled in fixed slot (21), two still be connected with between ladder leg unit (1) and be used for maintaining overall stability's spacing subassembly (5).

2. An interior finishing portable escalator as claimed in claim 1, wherein: the inner wall of the sleeve (2) is vertically provided with a guide strip (22), and the upright rod (10) corresponds to a guide groove (100) which is arranged on the side wall of the guide strip (22) and is matched with the guide strip (22) in a sliding manner.

3. An interior finishing portable escalator as claimed in claim 1, wherein: spacing subassembly (5) include perpendicular rigid coupling in one ladder leg unit (1) corresponds first gag lever post (50), rigid coupling in the gag lever post is kept away from baffle (51) and the rotation of sleeve (2) one end connect in limiting plate (53) on the gag lever post, limiting plate (53) are kept away from the one end of first gag lever post (50) is provided with one spacing hole (530), another in ladder leg unit (1) correspond on sleeve (2) the perpendicular rigid coupling in position of spacing hole (530) has a second gag lever post (54), works as spacing hole (530) with during second gag lever post (54) joint, two ladder leg unit (1) fixed connection.

4. An interior finishing portable escalator as claimed in claim 3, wherein: the first limiting rod (50) is sleeved with a limiting spring (52), the limiting spring (52) is located between the baffle plate (51) and the limiting plate (53), and the limiting spring (52) has a tendency of driving the limiting plate (53) to be far away from the baffle plate (51).

5. An interior finishing portable escalator as claimed in claim 1, wherein: it is same in ladder leg unit (1) two correspond on two lateral walls that sleeve (2) carried on the back mutually the position of fixed slot (21) is the rigid coupling respectively has a connecting plate (40), it is connected with a connecting rod (42) to slide on connecting plate (40), the one end of connecting plate (40) is kept away from in connecting rod (42) with second horizontal pole (3) are articulated.

6. An interior finishing portable escalator as claimed in claim 5, wherein: a first sliding groove (400) and a second sliding groove (401) are arranged on the connecting plate (40) along the length direction, the diameter of the second sliding groove (401) is smaller than that of the first sliding groove (400), the diameter of the connecting rod (42) is matched with that of the second sliding groove (401), one end of the connecting rod (42) far away from the second cross rod (3) is fixedly connected with a sliding block (420) which is matched with the diameter of the first sliding groove (400) and is connected with the first sliding groove in a sliding way, the second sliding groove (401) limits the sliding block (420) from moving out of the first sliding groove (400), a first tension spring (43) is fixedly connected between the sliding block (420) and the groove wall of the first sliding groove (400) far away from the second sliding groove (401), the first tension spring (43) has a tendency of driving the sliding block (420) to move towards the direction of the groove wall close to the first sliding groove (400) and far away from the second sliding groove (401).

7. An interior finishing portable escalator as claimed in claim 1, wherein: be provided with joint groove (101) on the lateral wall of pole setting (10) bottom, sleeve (2) bottom corresponds the position in joint groove (101) is provided with one and is used for the embedding joint groove (101) are fixed joint subassembly (6) of pole setting (10), joint subassembly (6) are including joint pole (62), joint pole (62) are worn to locate on the lateral wall of sleeve (2), work as joint pole (62) embedding during joint groove (101), pole setting (10) with sleeve (2) fixed connection.

8. An interior finishing portable escalator as claimed in claim 7, wherein: joint subassembly (6) are still located including the cover on joint pole (62) and with guide cylinder (60) of the outer wall rigid coupling of sleeve (2), the cover is equipped with a protective cap (61) on guide cylinder (60), joint pole (62) with protective cap (61) rigid coupling, still be provided with in protective cap (61) one with protective cap (61) with outer wall rigid coupling second extension spring (63) of sleeve (2), second extension spring (63) have and order about protective cap (61) to the trend that sleeve (2) removed.

9. An interior finishing portable escalator as claimed in claim 1, wherein: the bottom of sleeve (2) articulates there is supplementary supporting component (7), supplementary supporting component (7) include one end with the outer wall of sleeve (2) is articulated and vertical first backup pad (70) and the rigid coupling that sets up in first backup pad (70) keep away from its hinged end and transversely set up second backup pad (71).

10. An interior finishing portable escalator as claimed in claim 1, wherein: sleeve (2) bottom is provided with holding tank (23), horizontal rotation supports has a dwang (24) in holding tank (23), it has an universal wheel (8) to go back the rigid coupling on dwang (24).

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