CN105221059B

CN105221059B - A kind of telescopic mast ladder

Info

Publication number: CN105221059B
Application number: CN201510708870.9A
Authority: CN
Inventors: 崔建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2017-06-13
Anticipated expiration: 2035-10-28
Also published as: CN105221059A

Abstract

A kind of telescopic mast ladder, including outer tube, inner tube, pedal frame, inner tube is placed in corresponding outer tube cavity and rotatable, the bottom land opening that its outside is provided with corresponding tooth road or jack and can be correspondingly arranged with outer tube wall both sides respectively coincides, the conduit that the frid that bottom land opening both sides are fixedly connected is formed pedals frame built with moving up and down, and the tooth plate or adjustable plug of its inner side vertical edge distinguish ratcheting or grafting with the inner tube tooth road or jack of corresponding coincidence at bottom land opening.The evolution that the present invention passes through inner tube and outer tube, climbing structure movement corresponding with inner tube is connected the frame of pedaling for making in outer tube conduit by different way, the bar ladder have small volume, it is easy to carry, using flexible, assembling soon, the advantage of high safety.

Description

A kind of telescopic mast ladder

Technical field

The present invention relates to a kind of ladder, more particularly to a kind of telescopic mast ladder.

Background technology

At present, the species of ladder is a lot, and it is generally monolithic construction, if as including a pair of ladder bars and in ladder bars middle setting Dry treadle, existing ladder structure is single, and its floor space is big, it has not been convenient to carry；Simultaneously as the distance between treadle one It is fixed, it is not easy to be adjusted according to the demand of different ascending stair persons, and people's out on tours open air Pan Shan in actual life, linemen's People repairs circuit, fire fighter Pan Lou fire fightings, and orchard worker plucks fruit, it is necessary to a kind of convenient portable Multifunctional rod of climbing Ladder, the invention for also having similar bar ladder in the existing patent database of State Patent Office, patent of invention as has been publicly 201110408123.5, but be present limitation in it, be further improved.

The content of the invention

The present invention is directed to problem above, there is provided a kind of simple structure, save space, is easy to the telescopic mast ladder of operation.

The technical scheme is that：

A kind of telescopic mast ladder, including outer tube, inner tube, pedal frame, inner tube be placed on it is in corresponding outer tube cavity and rotatable, The bottom land opening that its outside is provided with corresponding tooth road or jack and can be correspondingly arranged with outer tube wall both sides respectively is coincided, and bottom land is opened The conduit that the frid that mouth both sides are fixedly connected is formed pedals frame built with moving up and down, pedals frame inner side vertical edge and is provided with and inner tube The corresponding tooth plate in tooth road or bottom are provided with the adjustable plug corresponding with inner tube jack, pedal the card in frame upper end side and conduit Firmware rotates connection, pedals frame and is started or put down as center of circle rotation with holding firmware rotating shaft, pedals the tooth plate or adjustable insertion of frame inner side vertical edge Bolt distinguishes ratcheting or grafting with the inner tube tooth road or jack of corresponding coincidence at bottom land opening.

The outer tube is circular or square long tube, and its outer wall both sides is correspondingly provided with bottom land opening separately, bottom land opening Both sides are fixedly connected frid, and it is cylindrical cavity that outer tube bottom is provided with limited bayonet, outer tube.

The frid is provided with vertical axle track opening, and the two ends for connecting bent plate are respectively fixedly connected with axle track opening both sides One is made on wooden partition, connecting the arc space of bent plate can allow that fixing is led in the frame rotating shaft spindle nose of pedaling of axle track open outer side Cross, the conduit formed between two frids is open shape.

The frid is band folding frid, and the discount conduit that it is formed staggered relatively is half opening shape.

Said inner tube is rounded and corresponding with outer tube cavity, and the outside of inner tube is correspondingly arranged tooth road or jack respectively, interior Pipe rotates its tooth road or jack and overlaps or close with the bottom land opening of outer tube both sides respectively, and the bottom of inner tube is set and outer tube bottom The corresponding positioning snib of limited bayonet, lower nozzle is provided with corresponding rotation silk or fastener in inner tube.

The frame of pedaling is for triangle or square shape.

The holding firmware for rotating connection is rotating shaft, and axostylus axostyle is fixed in axle track through the axle track opening of frid, two ends spindle nose In the range of open outer side and the loop-drive in connection bent plate, rotating shaft is slided up and down in axle track opening.

The holding firmware for rotating connection is sliding block, and the shape of sliding block is corresponding with half opening conduit cross section and is limited in Slided up and down in conduit, the contiguous block of sliding block stretches out from half opening and be connected with pedaling frame upper end and rotate.

Described rotating shaft two ends or sliding block both sides are provided with the bullet support spring of outside tension force, or the bullet that upper and lower tension force is provided with rotating shaft Support spring.

The bar ladder is made from lightweight metal material.

The evolution that the present invention passes through inner tube and outer tube, make in outer tube conduit pedal frame by different way with inner tube on Correspondence climbs structure movement connection, can up and down be climbed on bar ladder, can be connected with each other between bar ladder, extends it highly, the top of bar ladder The settable hook in end is simultaneously hung on aloft fixture, the bar ladder have small volume, it is easy to carry, using flexible, assembling is fast, peace The strong advantage of full property.

Brief description of the drawings.

Fig. 1 is front view of the present invention.

Fig. 2 is channel structure schematic diagram of the present invention.

Fig. 3 pedals frame and frid axle track rotating shaft connection diagram for the present invention.

Fig. 4 pedals frame with band folding frid sliding block connection diagram for the present invention.

Fig. 5 is to install to play support spring schematic diagram in present invention slider.

Fig. 6 is that bullet support spring schematic diagram is installed in rotating shaft of the present invention.

Fig. 7 pedals frame tooth plate and the ratcheting shape schematic diagram in inner tube tooth road for the present invention.

Fig. 8 pedals frame tooth plate and separates shape schematic diagram with inner tube tooth road for the present invention.

Fig. 9 pedals the adjustable plug of frame and inner tube jack grafting shape schematic diagram for the present invention.

Figure 10 pedals the adjustable plug of frame and separates shape schematic diagram with inner tube jack for the present invention.

Figure 11 pedals frame tooth plate and the ratcheting shape stereogram in inner tube tooth road for the present invention.

Figure 12 pedals frame tooth plate and separates shape stereogram with inner tube tooth road for the present invention.

Reference.

Outer tube 1, it is frid 11, axle track opening 111, connection bent plate 112, band folding frid 12, conduit 13, bottom land opening 131, fixed Position bayonet socket 14, inner tube 2, jack 21, tooth road 22, hook 23, positioning snib 24, pipe end fastener or rotation silk 25, pedal frame 3, climbers 31, Support frame 32, tooth plate 321,

Adjustable plug 322, sliding block 33, rotating shaft 34, spindle nose 341, stull spring 342.

Specific embodiment.

As shown in figure 1, the present invention includes outer tube 1, inner tube 2, pedals frame 3.

As shown in Fig. 2, Fig. 3, Figure 11, the outer tube 1 is circular or rectangular tube, and cylindrical cavity is divided into inside its pipe, interior Wall surface is corresponding with the outer wall surface geomery of inner tube 2 being placed in it, and the both sides of outer tube are correspondingly arranged a pair of strips Frid 11, frid is provided with vertical axle track opening 111, and connection bent plate 112 two ends are respectively fixedly connected with 111 liang of axle track opening One is made on side plate, connecting the arc space of bent plate can allow that fixing pedals frame rotating shaft spindle nose in axle track open outer side 341 pass through, and the conduit 13 formed between two frids is open shape, and bottom land opening 131 is interval with the outer tube wall of bottom land.

As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, or the both sides of outer tube 1 are correspondingly arranged a pair of band folding frids 12, and discount is relative to be put Put and be fixedly connected on outer tube wall, the conduit 13 that it is formed is half opening shape, is interval with bottom land on the outer tube wall of bottom land and opens Mouth 131.

As shown in Fig. 2 the lower end of outer tube 1 is provided with limited bayonet 14.

As shown in Fig. 1, Figure 10, Figure 12, said inner tube 2 is vertical cylinder shape, and its body of rod both sides is correspondingly arranged and pedals the phase of frame 3 Corresponding jack 21 or tooth road 22, inner tube can be placed in corresponding outer tube circular cavity and rotatable, jack 21 during rotation Or tooth road 22 can coincide with the bottom land opening 131 on outer tube wall respectively, positioning snib 24 and the outer tube lower end of its interior bar lower end The phase clamping of limited bayonet 14, the two ends of inner tube are provided with rotation silk or fastener 25, two telescopic mast movable connection development lengths of ladder, The mouth of pipe of Xiang Duan also can coupling hook 23.

As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, the frame 3 of pedaling in upside-down triangle shape or rectangle or other suitable shapes, including Climbers 31 and support frame 32, the vertical edge that support frame faces the side of conduit 13 are provided with the tooth plate 321 corresponding with inner tube tooth road 22, and teeth are Triangle can tooth consolidate, or support frame is faced the vertical edge lower end of the side of conduit 13 and is provided with the adjustable plug corresponding with inner tube jack 21 322, climbers can as needed be located at upper end or lower end.

As shown in Figure 3, Figure 4, support frame 32 is faced the side upper end of conduit 13 and is provided with rotating shaft 34, and rotating shaft is through on the frid of outer tube both sides Axle track opening 111, its spindle nose 341 fixes in the outside of frid 11 and is limited in the arc space of connection bent plate 112;Or in band The sliding block 33 corresponding with channel shape size is set in the half opening conduit 13 that folding frid 12 is formed, is fixed in semi-open slot Sliding block in road have contiguous block protruded through from half opening hinge with pedal the vertical edge upper end of frame 3 rotate be connected, pedaling frame 3 can be in conduit Moved up and down in 13.

As shown in Fig. 5, Fig. 6, Figure 12, to prevent pedaling frame 3 landing, the two ends of rotating shaft 34 or sliding block in outer tube both sides conduit 13 33 both sides are provided with and laterally play support spring 342, and its effect is to pedal frame 3 and can be relatively fixed in the case where being acted on without external force not slid in conduit, Frame 3 is pedaled in the presence of external force can be moved up and down in conduit 13, pedal frame 3 with rotating shaft 34 for the center of circle rotates, and can make to pedal the side of frame 3 Tooth plate 321 it is mutually ratcheting with inner tube Shang Chi roads 22 or separate, or pedal inserting in the adjustable plug 322 of frame side lower end and inner tube Hole 21 is plugged or separates, and pedaling frame 3 can be realized with the conversion of inner tube 2 connected mode by can adjust the length of plug, in inner tube The depth of jack is also corresponding with plug, and the length of plug can make to pedal frame tooth plate 321 and inner tube tooth road during using inserting mode 22 phase-separated states.

As shown in figure 11, its telescopic mast ladder operation principle is that outer bar 1 is penetrated from the upper end of interior bar 2 and is enclosed within interior bar, above carries outer Bar rotates diverse location can make interior bar Shang Chi roads 22 or jack 21 and the corresponding coincidence respectively of outer tube slot bottom opening 131, and fall Outer bar is fixed with interior bar, is pedaled the rotating shaft 34 at the upper corners of frame side and is penetrated at the axle track opening 111 of two frids, at axle dop 341 On the outside of board slot and be limited in connection bent plate 112 formed spatial dimension in, now rotate connection pedal frame 3 be in outer bar conduit In 13, tooth plate 321 and the mutually ratcheting fixing in inner tube Shang Chi roads 22 of its side of support frame 32, the also plug of adjustable articulator support frame lower end 322 with interior bar on the plug fixing of jack 21, or place sliding block 33 in the band folding half opening conduit 13 that is formed of frid 12 It is connected with the rotation of one jiao of 3 upper end of frame is pedaled, the fixing mode of support frame 32 is identical with the above.

The bullet support spring of bullet up or down can be also set in rotating shaft or sliding block junction, and its effect is to make to pedal the tooth plate of frame Or plug and interior bar Shang Chi roads or jack are in the nature for separating or connecting, and frame is pedaled when above being carried with pin, or under step on and pedal frame When, pedal frame and rotated by the center of circle of rotating shaft, pedal frame tooth plate or plug and mutually fixed with inner tube tooth road or jack.

The metal material of the optional lighter in weight of bar ladder, such as Al-alloy products.

Claims

1. a kind of telescopic mast is terraced, it is characterised in that including outer tube, inner tube, pedal frame, inner tube is placed in corresponding outer tube cavity And it is rotatable, its outside is provided with corresponding tooth road or jack can be mutually overlap with the bottom land opening that outer tube wall both sides are correspondingly arranged respectively Close, the conduit that the frid that bottom land opening both sides are fixedly connected is formed pedals frame built with moving up and down, pedal frame inner side vertical edge Be provided with the tooth plate corresponding with inner tube tooth road or bottom be provided with the adjustable plug corresponding with inner tube jack, pedal frame upper end side with Holding firmware in conduit rotates connection, and it is that the center of circle rotates and starts or put down to pedal frame with holding firmware, pedal on the inside of frame the tooth plate of vertical edge or Adjustable plug distinguishes ratcheting or grafting with the inner tube tooth road or jack of corresponding coincidence at bottom land opening.

2. a kind of telescopic mast according to claim 1 is terraced, it is characterised in that the outer tube is circular or square long tube, its Outer wall both sides are correspondingly provided with bottom land opening separately, and bottom land opening both sides are fixedly connected frid, and outer tube bottom is provided with locator card Mouthful, it is cylindrical cavity in outer tube.

3. a kind of telescopic mast according to claim 2 is terraced, it is characterised in that the frid is provided with vertical axle track opening, The two ends of connection bent plate are respectively fixedly connected with and one are made on the wooden partition of axle track opening both sides, and the arc for connecting bent plate is empty Between can allow to fix and pass through in the frame rotating shaft spindle nose of pedaling of axle track open outer side, the conduit formed between two frids is open shape.

4. a kind of telescopic mast according to claim 2 is terraced, it is characterised in that the frid is band folding frid, and discount is relative The conduit for placing its formation is half opening shape.

5. a kind of telescopic mast ladder according to claim 1, it is characterised in that said inner tube it is rounded and with outer tube cavity phase Correspondence, the outside of inner tube is correspondingly arranged tooth road or jack respectively, inner tube rotate its tooth road or jack respectively with the groove of outer tube both sides Bottom opening overlaps or closes, and the bottom of inner tube sets the positioning snib corresponding with outer tube bottom limited bayonet, down tube in inner tube Mouth is provided with corresponding rotation silk or fastener.

6. a kind of telescopic mast according to claim 1 is terraced, it is characterised in that the frame of pedaling is for triangle or square shape.

7. a kind of telescopic mast according to claim 3 is terraced, it is characterised in that the holding firmware for rotating connection is rotating shaft, Through the axle track opening of frid, two ends spindle nose is fixed in axle track open outer side and in the range of the loop-drive in connection bent plate axostylus axostyle, Rotating shaft is slided up and down in axle track opening.

8. a kind of telescopic mast according to claim 4 is terraced, it is characterised in that the holding firmware for rotating connection is sliding block, The shape of sliding block is corresponding with half opening conduit cross section and is limited in conduit and slides up and down, and the contiguous block of sliding block is from half opening Place stretch out with pedal frame upper end rotate be connected.

9. a kind of telescopic mast according to the one of claim 7 or 8 is terraced, it is characterised in that described rotating shaft two ends or sliding block Both sides are provided with the bullet support spring of outside tension force, or the bullet support spring of upper and lower tension force is provided with rotating shaft.

10. a kind of telescopic mast according to claim 1 is terraced, it is characterised in that the bar ladder selects lightweight metal material system Make.