CN211115733U - Can carry double ladder of goods - Google Patents
Can carry double ladder of goods Download PDFInfo
- Publication number
- CN211115733U CN211115733U CN201921502782.3U CN201921502782U CN211115733U CN 211115733 U CN211115733 U CN 211115733U CN 201921502782 U CN201921502782 U CN 201921502782U CN 211115733 U CN211115733 U CN 211115733U
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- China
- Prior art keywords
- ladder
- ladder frame
- groove
- height
- lifting device
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Abstract
The utility model discloses a herringbone ladder capable of pulling goods, which comprises a ladder frame, rollers, a cross bar and a lifting device, wherein the rollers are arranged on the ladder frame; the ladder frame is a pair of, and two ladder frame tops are articulated and the width of one of them ladder frame is less than the width of another ladder frame, make two ladder frames rotate relatively and overlap together, and a ladder frame includes two montants, installs the horizontal pole that a plurality of is used for the climbing step by step along direction of height in the middle of two montants, the scalable setting of elevating gear is in the montant bottom for adjust the whole height of ladder frame. Abundant form conversion can be realized to the present case, because the ladder frame can rotate relatively, consequently this ladder frame has two states of expansion and receipts, when the ladder frame expands as the double ladder, the horizontal pole supplies the user to scramble this moment, the elevating gear of ladder frame bottom can carry out altitude mixture control as required, can be used as the pulling cart that removes after the ladder frame receipts are collapsed, can hold the goods on the horizontal pole this moment, and two ladder frames superpose together after the receipts are collapsed, has strengthened the bearing capacity who pulls a cart.
Description
Technical Field
The utility model relates to a ladder, in particular to can carry double ladder of goods.
Background
On the market today, there is the product of the combination of ladder and pulling the car, called "ladder car" again, rise gradually, this kind of ladder car lets people's life become more laborsaving, convenient, but traditional ladder car structure is except complicated shortcoming, and the function is comparatively single, and is not nimble enough, and more importantly, the ladder frame of traditional ladder car rotates the expansion back, and ladder frame on one side is used for dragging, and the another side is used for the bearing, makes the ladder car structure of bearing part thin, and the bearing capacity is limited.
In order to solve the problems, the scheme is developed accordingly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can draw double ladder of goods, collect double ladder and the function in an organic whole of pulling the car, and the bearing capacity is big, and functional strong, simple structure.
In order to achieve the above object, the technical solution of the present invention is as follows:
a herringbone ladder capable of carrying goods comprises a ladder frame, rollers, a cross rod and a lifting device, wherein the rollers are arranged on the ladder frame; the ladder frames are in a pair, the tops of the two ladder frames are hinged, and the width of one ladder frame is smaller than that of the other ladder frame, so that the two ladder frames can rotate relatively and overlap together;
one ladder frame comprises two vertical rods, and a plurality of cross rods for climbing are arranged in the middle of the two vertical rods step by step along the height direction;
the lifting device is arranged at the bottom end of the vertical rod in a telescopic mode and used for adjusting the overall height of the ladder frame.
Preferably, the cross bar further comprises a spare cross bar, mounting pieces are convexly arranged at two ends of the spare cross bar, and mounting grooves matched with the mounting pieces to be inserted are formed in the lifting device; when the lifting device extends out of the bottom end of the vertical rod, the standby transverse rods are additionally arranged step by step along the height direction of the lifting device.
Preferably, the notch shape of mounting groove is "H" type, erects the horizontal groove in groove and intercommunication left and right sides perpendicular groove including a left side, the right side, and the height that erects the groove on a left side is greater than the height that erects the groove on the right side, and the height that erects the groove on a left side matches with the height of installation piece and is for the installation piece to put into, forms connecting portion between installation piece and the reserve horizontal pole, and the height of connecting portion and the height phase-match of horizontal groove make the installation piece put into erect the groove on a left side after along horizontal groove lateral shifting to the right side and erect the groove and fall into the right side and erect the inslot formation fixed.
Preferably, the lifting device comprises a telescopic bracket and a clamping mechanism, wherein the telescopic bracket is sleeved at the bottom end of the vertical rod, can be adjusted in a sliding manner relative to the vertical rod, and is fixed through the clamping mechanism after being adjusted.
Preferably, the vertical rod is a hollow section bar, and the telescopic bracket is sleeved inside the bottom end of the vertical rod.
Preferably, the clamping mechanism comprises a plurality of pin holes and bolts matched with the pin holes in size, the pin holes are arranged and formed in the telescopic support along the height direction of the telescopic support, the vertical rods are also provided with jacks corresponding to the pin holes, and the bolts are clamped into the jacks and the pin holes to fix the position of the telescopic support, so that the sliding of the telescopic support is limited.
Preferably, the number of the rollers is at least more than one pair, and each pair of rollers is horizontally and symmetrically arranged on the vertical rod and protrudes out of the vertical rod along the vertical ladder frame height direction.
Preferably, the cross bar further comprises a small-caliber cross bar, the small-caliber cross bar is positioned at the top of the ladder frame, and the cross section area of the small-caliber cross bar is smaller than that of other cross bars.
Preferably, a chain is arranged between the two ladder frames, one end of the chain is connected to the cross rod of one ladder frame, the other end of the chain is connected to the cross rod of the other ladder frame, and the two cross rods are parallel.
Preferably, the ladder rack and the cross bar are both square tubes.
After the scheme is adopted, the utility model discloses can realize abundant form conversion, because the ladder frame can rotate relatively, consequently this ladder frame has two states that expand and receive and close, is used as the double ladder when the ladder frame expands, and the horizontal pole supplies the user to scramble this moment, and the elevating gear of ladder frame bottom can carry out altitude mixture control as required, receives when the ladder frame receipts to close and can be used as the pulling cart that removes after laying down, can hold the goods on the horizontal pole this moment, and receive two ladder frames stack after closing together, has strengthened the bearing capacity of pulling cart.
Drawings
FIG. 1 is a schematic structural view of the present invention when used as a herringbone ladder;
FIG. 2 is a first schematic structural view of the lifting height of the lifting device when the present invention is used as a herringbone ladder;
FIG. 3 is a schematic structural view II of the lifting height of the lifting device when the herringbone ladder of the present invention is used;
fig. 4 is a schematic view of the utility model used as a cart (with goods attached);
FIG. 5 is a schematic view of the cross bar assembly of the present invention;
fig. 6 is a schematic structural view of the telescopic bracket of the present invention;
FIG. 7 is a schematic structural view of the backup rail of the present invention;
fig. 8 is a schematic structural view of the vertical rod of the present invention;
fig. 9 is a schematic structural view of the fastening mechanism of the present invention.
Description of reference numerals:
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor, please refer to fig. 1 to 9.
Referring to fig. 3 to 5, the double ladder for pulling goods mainly comprises ladder frames 1,2, rollers 3, a cross bar 4, a lifting device 5 and a spare cross bar 6, wherein the rollers 3 are mounted on the ladder frames, the ladder frames 1 and 2 are in a pair, the tops of the two ladder frames 1 and 2 are hinged, and the width of one ladder frame 1 is smaller than that of the other ladder frame 2 (as shown in fig. 5), so that the two ladder frames 1 and 2 can rotate relatively and overlap; one ladder frame includes two montants 11, installs a plurality of horizontal pole 4 that is used for the climbing step by step along the direction of height in the middle of two montants 11, because the width of one of them ladder frame 1 is less than the width of another ladder frame 2, so 4 width of horizontal pole on each ladder frame 1,2 are also so, and the horizontal pole width on narrow ladder frame 1 is less than the horizontal pole width on the wide ladder frame 2 promptly, otherwise can appear the condition that blocks each other when closing, makes two ladder frames 1,2 can not complete overlapping together.
As shown in fig. 1 to 3, the lifting device 5 is telescopically arranged at the bottom end of the vertical rod 11 for adjusting the overall height of the ladder rack 1 or 2, in this embodiment, the lifting device 5 comprises a telescopic support 51 and a clamping mechanism 52, the telescopic support 51 is sleeved at the bottom end of the vertical rod 11, the vertical rod 11 is designed as a hollow section, the telescopic support 51 is conveniently sleeved inside the bottom end of the vertical rod 11, so that the telescopic support 51 can be hidden when being contracted, and the external structure of the ladder rack 1 or 2 is more concise and clean. The telescopic bracket 51 can be adjusted in a sliding manner relative to the vertical rod 11 and is fixed by the clamping mechanism 52 after being adjusted. As shown in fig. 9, it is further preferable that the locking mechanism 52 includes a plurality of pin holes 521 and pins 522 adapted to the size of the pin holes 521, the pin holes 521 are arranged on the telescopic bracket 51 in a height direction of the telescopic bracket 51, the vertical rod 11 also has a socket 523 at a position corresponding to the pin hole 521, and the pins 522 are locked into the socket 523 and the pin hole 521 to fix the position of the telescopic bracket 51, so as to limit the sliding of the telescopic bracket 51. This structure is advantageous for the position of the retractable bracket 51 to be fixed by the fixing mechanism 52 when the retractable bracket 51 extends out of the vertical rod 11, and similarly, the position of the retractable bracket 51 to be fixed by the fixing mechanism 52 again when the retractable bracket 51 retracts into the vertical rod 11, so as to realize the cooperative engagement between the retractable and fixing relationships. As shown in fig. 9, in the present embodiment, since the ladder frames 1 and 2 can rotate relatively, the ladder frames 1 and 2 have two states of unfolding and folding, when the ladder frames 1 and 2 are unfolded, they are used as a herringbone ladder, at this time, the cross rod 4 is used for users to climb, the lifting device 5 at the bottoms of the ladder frames 1 and 2 can be adjusted in height as required, when the ladder frames 1 and 2 are folded, they can be used as a mobile pull cart, at this time, the lifting device 5 can be folded into the vertical rod 11 to be hidden, the cross rod 4 can be used for holding goods, and after being folded, the two ladder frames 1 and 2 are overlapped together, so that the bearing capacity of the pull cart is enhanced, and the state conversion and height adjustment functions of the pull cart and the herringbone ladder are realized.
In this embodiment, the spare cross rod 6 is used for gradually adding the spare cross rod 6 along the height direction of the lifting device 5 when the lifting device 5 extends out of the bottom end of the vertical rod 11, wherein the spare cross rod 6 is added with one step as shown in fig. 2, and the spare cross rod 6 is added with two steps as shown in fig. 3. Specifically, compared with the crossbar 4, the spare crossbar 6 has substantially the same structure, but the only difference is that the spare crossbar 6 has mounting pieces 62 protruding from both ends, as shown in fig. 5 to 7, and the lifting device 5 is provided with mounting grooves 61 into which the mounting pieces 62 are inserted. As shown in fig. 6, the notch of the mounting groove 61 is shaped like an "H", and includes a left vertical groove 611, a right vertical groove 612 and a horizontal groove 613 communicating the left vertical groove and the right vertical groove, the height of the left vertical groove 611 is greater than the height of the right vertical groove 612, the height of the left vertical groove 611 matches with the height of the mounting plate 62 for the mounting plate 62 to be inserted, a connecting portion 621 is formed between the mounting plate 62 and the spare cross bar 6, the height of the connecting portion 621 matches with the height of the horizontal groove 613, so that the mounting plate 62 is inserted into the left vertical groove 611 and then moves horizontally along the horizontal groove 613 to the right vertical groove 612 and falls into the right vertical groove 612 to form a fixed structure, and the structure not only solves the problem that the cross bar 4 is vacant after the height rises, but also has simple and firm operation, and improves the functionality of the product.
The quantity of gyro wheel 3 is more than a pair at least, and a pair is promptly two gyro wheels 3, and every 3 horizontal symmetry of gyro wheel of every pair is installed on the different montant 11 of same ladder frame, and along perpendicular ladder frame direction of height protrusion in montant 11, protrusion in montant 11 make things convenient for in ladder frame 1,2 after falling down gyro wheel 3 directly to land, directly roll. In one embodiment, the number of the rollers 3 is two pairs, one pair is located near the bottom of the ladder frame, and the other pair is located near the top of the ladder frame, so that the utility model can be well balanced when used as a pull cart.
As shown in fig. 4, in order to facilitate pulling the cart, the cross bar 4 further includes a small-caliber cross bar 41, the cross section area of the small-caliber cross bar 41 is smaller than that of the other cross bars 4, the small-caliber cross bar 41 is located at the top of the ladder frames 1 and 2, and can be tied by using objects such as a pulling rope 8 to be pulled, and the small-caliber cross bar 41 is more convenient for tying the pulling rope 8.
This preferred embodiment is still be equipped with chain 7 between two ladder framves 1,2, the one end of chain 7 is connected on the horizontal pole of one of them ladder frame 1, and the other end of chain 7 is connected on the horizontal pole of another ladder frame 2, and two horizontal poles 4 are parallel, and chain 7 can prevent effectively that the angle that two ladder frames 1,2 expand is too big, improves the security of product.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A double ladder that can carry goods, its characterized in that: the lifting device comprises a ladder frame, rollers, a cross bar and a lifting device, wherein the rollers are arranged on the ladder frame; the ladder frames are in a pair, the tops of the two ladder frames are hinged, and the width of one ladder frame is smaller than that of the other ladder frame, so that the two ladder frames can rotate relatively and overlap together;
one ladder frame comprises two vertical rods, and a plurality of cross rods for climbing are arranged in the middle of the two vertical rods step by step along the height direction;
the lifting device is arranged at the bottom end of the vertical rod in a telescopic mode and used for adjusting the overall height of the ladder frame.
2. A ladder as claimed in claim 1, wherein: the lifting device is provided with a mounting groove which is inserted by matching with the mounting pieces; when the lifting device extends out of the bottom end of the vertical rod, the standby transverse rods are additionally arranged step by step along the height direction of the lifting device.
3. A ladder as claimed in claim 2, wherein: the notch shape of mounting groove is "H" type, including that a left side erects the groove, the right side erects the horizontal groove of groove and intercommunication left and right sides perpendicular groove, the height that erects the groove on a left side is greater than the height that erects the groove on the right side, the height that erects the groove on a left side matches with the height of installation piece and is put into for the installation piece, forms connecting portion between installation piece and the reserve horizontal pole, the height of connecting portion and the height phase-match of horizontal groove, make the installation piece put into the left side erect the groove after along horizontal groove lateral shifting to the right side erect the groove and fall into the right side and erect the inslot and form fixedly.
4. A ladder as claimed in claim 1, wherein: the lifting device comprises a telescopic support and a clamping mechanism, wherein the telescopic support is sleeved at the bottom end of the vertical rod, can be adjusted in a sliding mode relative to the vertical rod, and is fixed through the clamping mechanism after being adjusted.
5. A ladder as claimed in claim 4, wherein: the vertical rod is a hollow section, and the telescopic bracket is sleeved inside the bottom end of the vertical rod.
6. A ladder as claimed in claim 4, wherein: the clamping mechanism comprises a plurality of pin holes and bolts matched with the pin holes in size, the pin holes are arranged and arranged on the telescopic support along the height direction of the telescopic support, the vertical rods are also provided with jacks corresponding to the pin holes, and the bolts are clamped into the jacks and the pin holes to fix the position of the telescopic support, so that the sliding of the telescopic support is limited.
7. A ladder as claimed in claim 1, wherein: the quantity of gyro wheel is more than a pair at least, and every is installed on the montant to gyro wheel horizontal symmetry, and along perpendicular ladder frame direction of height protrusion in montant.
8. A ladder as claimed in claim 1, wherein: the cross rod further comprises a small-caliber cross rod, the small-caliber cross rod is located at the top of the ladder frame, and the cross section area of the small-caliber cross rod is smaller than that of other cross rods.
9. A ladder as claimed in claim 1, wherein: be equipped with the chain between two ladder framves, the one end of chain is connected on the horizontal pole of one of them ladder frame, and the other end of chain is connected on the horizontal pole of another ladder frame, and two horizontal poles are parallel.
10. A ladder as claimed in claim 1, wherein: the ladder rack and the cross rods are both square tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921502782.3U CN211115733U (en) | 2019-09-10 | 2019-09-10 | Can carry double ladder of goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921502782.3U CN211115733U (en) | 2019-09-10 | 2019-09-10 | Can carry double ladder of goods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211115733U true CN211115733U (en) | 2020-07-28 |
Family
ID=71694203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921502782.3U Expired - Fee Related CN211115733U (en) | 2019-09-10 | 2019-09-10 | Can carry double ladder of goods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211115733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455007A (en) * | 2022-01-11 | 2022-05-10 | 江苏科技大学 | Offshore wind power operation and maintenance lifting and landing device and using method thereof |
-
2019
- 2019-09-10 CN CN201921502782.3U patent/CN211115733U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455007A (en) * | 2022-01-11 | 2022-05-10 | 江苏科技大学 | Offshore wind power operation and maintenance lifting and landing device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |