CN210768570U

CN210768570U - Extension ladder with telescopic supporting structure

Info

Publication number: CN210768570U
Application number: CN201921438682.9U
Authority: CN
Inventors: 陈丹棋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-16
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to a telescopic ladder with telescopic support structure, including telescopic ladder body and the bearing structure of setting on telescopic ladder body, bearing structure include a plurality of sections telescopic bracing pieces and with bracing piece articulated connecting rod, the bracing piece is kept away from to the connecting rod one end articulated the setting at the lower extreme of telescopic ladder body, the upper end of bracing piece is connected in the upper end of telescopic ladder body, the periphery cover of bracing piece is equipped with the connecting piece, the other end of connecting rod articulates the setting on the connecting piece, when upwards pulling out telescopic ladder, the bracing piece can be along with the rising of telescopic ladder and stretch out automatically. Adopt above-mentioned technical scheme, the utility model provides a extension ladder with flexible bearing structure, this bearing structure installs on extension ladder, and the bracing piece is stretched out automatically in the rising of ladder height, sets up like this and makes this extension ladder more stable when using, and this bearing structure is scalable accomodate, occupation space not.

Description

Extension ladder with telescopic supporting structure

Technical Field

The utility model relates to a ladder especially relates to a telescopic ladder with flexible bearing structure.

Background

The extension ladder is a ladder which can be extended and shortened like a fishing rod and is divided into an engineering extension ladder and a bamboo joint extension ladder. It is very convenient to carry and store, and can be placed in a closet, a study room, under a bed or in a trunk of an automobile.

The existing extension ladder is provided with the support rods at the bottom of the ladder, so that the stability of the ladder can be improved. However, such a support rod is usually fixedly connected to the ladder, and the length thereof is also fixed, so that the support rod cannot be automatically retracted and stored, and cannot be correspondingly changed along with the increase of the length of the extension ladder, so that when the extension ladder is used, if the height is high, the stability of the ladder cannot be guaranteed even if the support rod is provided.

Disclosure of Invention

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a telescopic ladder with telescopic supporting structure, this bearing structure install on telescopic ladder, can stretch out the bracing piece along with the rising of ladder height is automatic, set up like this and make this telescopic ladder more stable when using, and this bearing structure is scalable accomodate, occupation space not.

The technical scheme of the utility model: the utility model provides a telescopic ladder with telescopic support structure, includes telescopic ladder body and sets up the bearing structure on telescopic ladder body, telescopic ladder body includes by lower supreme a plurality of ladder unit that sets gradually, its characterized in that, bearing structure include a plurality of sections telescopic bracing piece and with bracing piece articulated connecting rod, two adjacent sections vaulting poles cup joint the setting, and be equipped with positioning mechanism between two adjacent sections vaulting poles, the bracing piece is kept away from to the connecting rod one end is articulated to be set up the lower extreme at telescopic ladder body, the upper end of bracing piece is connected in telescopic ladder body pars contractilis's upper end, the periphery cover of bracing piece is equipped with the connecting piece, the other end of connecting rod is articulated to be set up on the connecting piece, and when upwards pulling out the ladder unit, the bracing piece can be along with telescopic ladder rising and automatic stretching.

Adopt above-mentioned technical scheme, under the condition that the ladder height riseed, the bracing piece can be automatic thereupon rebound, after the ladder rises to accomplish, to keeping away from flexible ladder body direction and opening the connecting rod, at this moment positioning mechanism can fix a position the bracing piece, and the bracing piece is connected on flexible ladder body, increases the stability of flexible ladder body like this, and the connecting rod can increase the stability of bracing piece, and the articulated setting of connecting rod can change along with the open angle of bracing piece like this.

The utility model discloses a further setting: the utility model discloses a flexible ladder, including flexible ladder body, bracing piece, connecting piece, locating mechanism, shell fragment fixed connection or an organic whole, the bracing piece includes first bracing piece and second bracing piece, first bracing piece cup joints the setting in the second bracing piece, the periphery at the second bracing piece is established to the connecting piece cover, positioning mechanism includes the shell fragment and sets up the reference column on the shell fragment, shell fragment fixed connection or integrative setting are on first bracing piece, be equipped with on the second bracing piece and supply reference column male first through-hole, after flexible ladder body rises and first bracing piece stretches out thereupon, open the connecting rod to keeping away from flexible ladder body direction, the shell fragment can drive the reference column and insert the realization in the first through-hole to the.

By adopting the further arrangement, when the previous ladder unit is pulled upwards from the next ladder unit, the first supporting rod can automatically slide upwards along with the first supporting rod, after the ladder unit is pulled to the designated position, the connecting rod is opened in the direction away from the telescopic ladder body, the elastic sheet can drive the positioning column to extend out of the first through hole, the first supporting rod is fixedly fixed, when the ladder unit is not used, the positioning column is pressed inwards to unlock the first supporting rod, the previous ladder unit is pushed back downwards into the next ladder unit, the first supporting rod can slide towards the second supporting rod, and therefore when the ladder unit is not used, the supporting rod can be collected and does not occupy space, when the ladder unit is used, the first supporting rod extends out, and the positioning mechanism is used for positioning the supporting rod so that the supporting rod cannot retract when the ladder unit is used.

The utility model discloses a further setting again: the utility model discloses a support pole, including the bracing piece, the bracing piece includes first bracing piece and second bracing piece, first bracing piece cup joints the setting in the second bracing piece, the periphery at the second bracing piece is established to the connecting piece cover, positioning mechanism includes the shell fragment and sets up the reference column on the shell fragment, the shell fragment sets up in first bracing piece, be equipped with first through-hole on the second bracing piece, be equipped with the second through-hole on the lateral wall of first bracing piece, when first bracing piece stretches out, first through-hole aligns with the second through-hole and makes the reference column pass first through-hole and second through-hole in proper order and realize the location to first bracing piece.

By adopting the further arrangement, when the ladder unit of the previous section is pulled upwards from the inside of the next ladder unit, the first supporting rod can automatically slide upwards along with the first supporting rod, after the ladder unit is pulled to the designated position, the connecting rod is opened towards the direction away from the telescopic ladder body, the elastic sheet can drive the positioning column to sequentially pass through the first through hole and the second through hole, the first supporting rod is fixedly fixed, when the ladder unit is not used, the positioning column is pressed inwards to unlock the first supporting rod, the ladder unit of the previous section is pushed back towards the inside of the ladder unit of the next section downwards, the first supporting rod can slide towards the inside of the second supporting rod, and when the ladder unit is not used, the supporting rod can be collected, the space is not occupied, the ladder unit stretches out when the ladder unit is used, the positioning mechanism is used for positioning the supporting rod, and the positioning mechanism can not retract and is more stable when the.

The utility model discloses a further setting again: be equipped with first joint spare and second joint spare on the ladder body, first joint spare includes first pipe box, bolted connection is passed through to first pipe box one end, and just first pipe box passes through the bolt clamp and establishes the lower extreme at flexible ladder body, the articulated setting on first joint spare of one end that the bracing piece was kept away from to the connecting rod, second joint spare includes second pipe box, bolted connection is passed through to second pipe box one end, and second pipe box passes through the bolt clamp and establishes the upper end at flexible ladder body, the articulated setting in second joint spare in bracing piece upper end.

Adopt the aforesaid to further set up again, the structure of first pipe box and second pipe box is the same, all through bolted connection, set up convenient dismantlement like this, the height of convenient adjustment bracing piece simultaneously, press from both sides the upper end at the lower extreme of flexible ladder body and flexible ladder body through the bolt fastening when using, and when the height of flexible ladder body increases, dismantle the rebound with second joint spare, move to the suitable position after press from both sides tightly on flexible ladder body through the bolt fastening, the number of sections of bracing piece also can change thereupon when flexible ladder body height rises.

The utility model discloses a still further set up: the lower extreme of ladder body is equipped with first mount pad, the articulated setting on first mount pad of one end of connecting rod bracing piece, the upper end of ladder body is equipped with the second mount pad, the articulated setting on the second mount pad of upper end of bracing piece.

Adopt above-mentioned further setting again, the one end that the bracing piece was kept away from to the connecting rod is articulated to be set up on first mount pad, and the upper end of bracing piece is articulated to be set up on the second mount pad, sets up convenient dismantlement like this, when needs upwards adjust bearing structure, convenient dismantlement, and then install on last mount pad.

The utility model discloses a still further set up: the elastic sheet is arranged in the first supporting rod, the side wall of the first supporting rod is provided with a second through hole for the positioning column to extend out, and when the first supporting rod extends out, the first through hole and the second through hole are aligned with the positioning column and extend out of the second through hole to position the first supporting rod.

Adopt above-mentioned still further setting, more conveniently fix a position first bracing piece, make bearing structure more stable, when the ladder used, stability was better.

The utility model discloses a still further set up: the ladder unit comprises two telescopic rods arranged in parallel and a pedal connected with the two telescopic rods, the telescopic rods in two adjacent ladder units are sleeved, a locking device is arranged between the two adjacent telescopic rods, and the locking device positions the previous telescopic rod when the previous telescopic rod extends out.

Adopt the aforesaid to set up still further, when using, pull out the telescopic link of one section of the front in the telescopic link of one section of the back, make ladder length elongated, facilitate the use, when need not using, in retrieving the telescopic link of one section of the front in the telescopic link of one section of the back, convenient storage does not account for the space like this, and locking device can be fixed it after one section of the front telescopic link stretches out for the stability of ladder is better.

The utility model discloses a still further set up: locking device includes that bolt, spring and push away and turn round, be equipped with first installation cavity in the footboard, the spring both ends are contradicted with bolt and first installation intracavity wall respectively and are set up, push away to turn round the setting in the outside of footboard, and push away to turn round and coordinate with the bolt linkage, the end of telescopic link is equipped with the bolt male pinhole of inserting that supplies the bolt, and when the telescopic link stretches out, the bolt that inserts of spring drive bolt inserts the pinhole and realizes the location to the telescopic link.

By adopting the above further arrangement, after the telescopic rod extends out, the bolt can be inserted into the pin hole under the acting force of the spring to position the second telescopic rod, and the locking device is simple in structure, convenient to install and low in cost.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic structural view of the storage case of embodiment 2 of the present invention;

fig. 4 is an exploded view of the embodiment 1 of the support rod according to the embodiment of the present invention;

fig. 5 is an exploded view of the embodiment 2 of the support rod according to the embodiment of the present invention;

fig. 6 is a schematic connection diagram of each clip member according to an embodiment of the present invention;

FIG. 7 is a schematic view of a telescoping ladder body according to an embodiment of the present invention;

fig. 8 is a schematic view of a locking device according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1-8, a telescopic ladder with a telescopic support structure comprises a telescopic ladder body 1 and a support structure 2 arranged on the telescopic ladder body 1, wherein the telescopic ladder body 1 comprises a plurality of ladder units 11 arranged from bottom to top in sequence, the support structure 2 comprises a plurality of telescopic support rods 3 and connecting rods 4 hinged with the support rods 3, two adjacent support rods 3 are sleeved and arranged, a positioning mechanism is arranged between the two adjacent support rods 3, one end of each connecting rod 4 far away from the corresponding support rod 3 is hinged and arranged at the lower end of the telescopic ladder body 1, the upper end of each support rod 3 is connected to the upper end of the telescopic part of the telescopic ladder body 1, the telescopic part refers to the part of the telescopic ladder body 1 which can be pulled out and retracted, a connecting piece 7 is sleeved on the periphery of the corresponding support rod 3, and the upper end of each connecting rod 6 is hinged and arranged on the corresponding connecting piece 7, when upwards pulling out ladder unit 11, bracing piece 3 can be along with flexible ladder's rising and automatic stretching out, under the condition that the ladder height risees, bracing piece 3 can be automatic upwards removal thereupon, after the ladder rises to accomplish, open connecting rod 4 to keeping away from flexible ladder body 1 direction, at this moment positioning mechanism can fix a position bracing piece 3, bracing piece 3 is connected on flexible ladder body 1, increase the stability that can increase flexible ladder body 1 like this, connecting rod 4 can increase bracing piece 3's stability, connecting rod 4 articulates the setting, can change along with the open angle of bracing piece 3 like this, bearing structure 2 is equipped with two, set up the both sides at flexible ladder body 1 respectively.

In this embodiment 1, as shown in fig. 1 and 6, the ladder body 1 is provided with a first clamping member 5 and a second clamping member 6, the first clamping member 5 includes a first circular tube sleeve 51, one end of the first circular tube sleeve 51 is connected by a bolt, the first circular tube sleeve 51 is clamped at the lower end of the telescopic ladder body 1 by a bolt, the connecting rod 4 is hinged on the first clamping member 5, the second clamping member 6 includes a second circular tube sleeve 61, one end of the second circular tube sleeve 61 is connected by a bolt, the second circular tube sleeve 61 is clamped at the upper end of the telescopic ladder body 1 by a bolt, the upper end of the supporting rod 3 is hinged on the second clamping member 6, the first circular tube sleeve 51 and the second circular tube sleeve 61 have the same structure and are connected by a bolt, so as to facilitate disassembly and adjustment of the height of the supporting rod 3, and are clamped at the lower end of the telescopic ladder body 1 and the upper end of the telescopic ladder body 1 by a bolt when in use, and when the height of flexible ladder body 1 increased, dismantle second joint spare 6 and get off upward movement, move to after the suitable position on flexible ladder body 1 through the bolt clamp, the number of sections of bracing piece 3 also can change thereupon when flexible ladder body 1 highly rises.

In this embodiment 2, as shown in fig. 2-3, the lower end of the ladder body 1 'is provided with a first mounting seat 12, the connecting rod 4' is hinged to the first mounting seat 12, the upper end of the ladder body 1 is provided with a second mounting seat 13, the second mounting seat 13 can be increased according to the height of the ladder body 1', the upper end of the first supporting rod 31' is hinged to the second mounting seat 13, the connecting rod 4 'is hinged to the first mounting seat 12, and the upper end of the supporting rod 3' is hinged to the second mounting seat 13, so that the mounting and dismounting are facilitated, and when the supporting structure needs to be adjusted upwards, the supporting structure can be dismounted and mounted on the previous mounting seat.

In embodiment 1 of the supporting rod, as shown in fig. 4, the supporting rod 3 includes a first supporting rod 31 and a second supporting rod 32, the first supporting rod 31 is sleeved in the second supporting rod 32, the connecting member 7 is sleeved on the periphery of the second supporting rod 32, the positioning mechanism includes a spring plate 81 and a positioning post 811 disposed on the spring plate 81, the spring plate 81 is fixedly connected or integrally disposed on the first supporting rod 31, the fixed connection may be a snap connection, a welding connection, a pin connection, or the like, the second supporting rod 32 is provided with a first through hole 321 for inserting the positioning post 811, after the telescopic ladder body 1 is raised and the first supporting rod 31 is extended, that is, when the ladder unit 11 of the previous section is pulled upward from the next ladder unit 11, the first supporting rod 31 automatically slides upward along with the first supporting rod, and the connecting rod 4 is opened in a direction away from the telescopic ladder body 1, the elastic sheet 81 drives the positioning column 811 to be inserted into the first through hole 321 to position the first supporting rod 31, when the ladder is not in use, the front section of the ladder unit 11 is pushed back to the rear section of the ladder unit 11, the first supporting rod 31 slides into the second supporting rod 32, therefore, when the ladder is not in use, the supporting rod 3 can be retracted without occupying a space, when the ladder is in use, the supporting rod extends out, and the positioning mechanism is used for positioning the supporting rod 3, so that the supporting rod 3 cannot retract when the ladder is in use. The spring plate of the utility model has another installation mode, in the embodiment 2 of the support bar, as shown in figure 5, the support rod 3' comprises a first support rod 31' and a second support rod 32', the first support rod 31' is sleeved in the second support rod 32', the connecting piece 7' is sleeved on the periphery of the second support rod 32', the positioning mechanism comprises an elastic sheet 81' and a positioning column 811' arranged on the elastic sheet 81', the elastic sheet 81 'is arranged in the first support rod 31', the second support rod 32 'is provided with a first through hole 321', the side wall of the first support rod 31 'is provided with a second through hole 311', when the first supporting rod 31' is extended, the first through hole 311' is aligned with the second through hole 321' such that the positioning column 811' sequentially passes through the first through hole 311' and the second through hole 321' to position the first supporting rod 31 '. With this embodiment it is also possible to position the first support bar 31', both ways being possible.

In this embodiment, the ladder unit 11 includes two telescopic rods 111 arranged in parallel and pedals 112 connected to the two telescopic rods 111, the first mounting seat 12 and the second mounting seat 13 are both mounted on the fixing member 14 of the pedal 112 fixed on the ladder body 1, the first clamping groove can be clamped on the telescopic rods 111 or clamped on the fixing ring 1121 of the pedal 112 sleeved on the periphery of the telescopic rods 111, the telescopic rods 111 of two adjacent ladder units 11 are sleeved, a locking device 9 is disposed between two adjacent telescopic rods 111, the locking device 9 positions the telescopic rods 111 when the telescopic rods 111 extend, when in use, the telescopic rods 111 are pulled out to lengthen the ladder length, so that the ladder is convenient to use, when not in use, the telescopic rods 111 are retracted, so that the ladder is convenient to store without occupying space, the locking device includes a bolt 91, a spring 92 and a push button 93, a first mounting cavity 1121 is disposed in the pedal 112, spring 92 both ends are contradicted with bolt 91 and first installation cavity 1121 inner wall respectively and are set up, push away to turn round 93 and set up in the outside of footboard 1121, and push away to turn round 93 and the cooperation of bolt 91 linkage, the end of telescopic link 111 is equipped with and supplies bolt 91 male pinhole 1111, and when telescopic link 111 stretches out, spring 92 drive bolt 91 inserts pinhole 1111 and realizes the location to telescopic link 111, can inject the pinhole 1111 and fix a position telescopic link 111 in the pinhole 1111 under spring 92's effort on telescopic link 111 stretches out the back bolt 91, and locking device 9 sets up simple structure like this, and simple to operate also makes the cost lower simultaneously.

Claims

1. The utility model provides a telescopic ladder with telescopic support structure, includes telescopic ladder body and sets up the bearing structure on telescopic ladder body, telescopic ladder body includes by lower supreme a plurality of ladder unit that sets gradually, its characterized in that, bearing structure include a plurality of sections telescopic bracing piece and with bracing piece articulated connecting rod, two adjacent sections vaulting poles cup joint the setting, and be equipped with positioning mechanism between two adjacent sections vaulting poles, the bracing piece is kept away from to the connecting rod one end is articulated to be set up at the lower extreme of telescopic ladder body, the bracing piece upper end is connected in telescopic ladder body telescopic upper end, the periphery cover of bracing piece is equipped with the connecting piece, the other end of connecting rod is articulated to be set up on the connecting piece, and when upwards pulling out telescopic ladder unit, the bracing piece can be along with the rising of telescopic ladder and stretch out automatically.

2. The extension ladder with the extension supporting structure as claimed in claim 1, wherein the supporting rods comprise a first supporting rod and a second supporting rod, the first supporting rod is sleeved in the second supporting rod, the connecting piece sleeve is arranged on the periphery of the second supporting rod, the positioning mechanism comprises an elastic sheet and a positioning column arranged on the elastic sheet, the elastic sheet is fixedly connected or integrally arranged on the first supporting rod, a first through hole for inserting the positioning column is formed in the second supporting rod, the connecting rod is opened in a direction away from the extension ladder body after the extension ladder body is lifted and the first supporting rod extends out, and the elastic sheet can drive the positioning column to be inserted into the first through hole to position the first supporting rod.

3. The extension ladder with the telescopic supporting structure as claimed in claim 1, wherein the supporting rods comprise a first supporting rod and a second supporting rod, the first supporting rod is sleeved in the second supporting rod, the connecting piece sleeve is arranged on the periphery of the second supporting rod, the positioning mechanism comprises an elastic sheet and a positioning column arranged on the elastic sheet, the elastic sheet is arranged in the first supporting rod, a first through hole is formed in the second supporting rod, a second through hole is formed in the side wall of the first supporting rod, and when the first supporting rod extends out, the first through hole is aligned with the second through hole, so that the positioning column sequentially passes through the first through hole and the second through hole to position the first supporting rod.

4. The extension ladder with the telescopic supporting structure as claimed in claim 1, 2 or 3, wherein the ladder body is provided with a first clamping member and a second clamping member, the first clamping member comprises a first round pipe sleeve, one end of the first round pipe sleeve is connected through a bolt, the first round pipe sleeve is arranged at the lower end of the extension ladder body through a bolt clamp, the connecting rod is hinged to the first clamping member, the second clamping member comprises a second round pipe sleeve, one end of the second round pipe sleeve is connected through a bolt, the second round pipe sleeve is arranged at the upper end of the extension ladder body through a bolt clamp, and the upper end of the supporting rod is hinged to the second clamping member.

5. The extension ladder with the telescopic supporting structure as claimed in claim 1, 2 or 3, wherein the ladder body is provided with a first mounting seat at the lower end thereof, the end of the connecting rod away from the supporting rod is hinged to the first mounting seat, the ladder body is provided with a second mounting seat at the upper end thereof, and the supporting rod is hinged to the second mounting seat at the upper end thereof.

6. The extension ladder with the telescopic supporting structure as claimed in claim 4, wherein the ladder units comprise two parallel extension bars and pedals connected with the two extension bars, the extension bars in two adjacent ladder units are sleeved, and a locking device is arranged between the two adjacent extension bars and used for positioning the previous extension bar when the previous extension bar extends out.

7. The extension ladder with the telescopic supporting structure is characterized in that the locking device comprises a bolt, a spring and a push button, a first installation cavity is formed in the pedal, two ends of the spring are respectively abutted to the bolt and the inner wall of the first installation cavity, the push button is arranged on the outer side of the pedal and is matched with the bolt in a linkage mode, a pin hole for inserting the bolt is formed in the tail end of the telescopic rod, and when the telescopic rod extends out, the bolt of the spring is driven to be inserted into the pin hole to achieve positioning of the telescopic rod.