CN212893577U - Aerial ladder telescopic boom, vehicle-mounted aerial ladder and aerial ladder vehicle - Google Patents
Aerial ladder telescopic boom, vehicle-mounted aerial ladder and aerial ladder vehicle Download PDFInfo
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- CN212893577U CN212893577U CN202021364468.6U CN202021364468U CN212893577U CN 212893577 U CN212893577 U CN 212893577U CN 202021364468 U CN202021364468 U CN 202021364468U CN 212893577 U CN212893577 U CN 212893577U
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- aerial ladder
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- arm support
- telescopic boom
- arm supports
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Abstract
The utility model provides an aerial ladder telescopic boom relates to special vehicle technical field. The aerial ladder telescopic boom comprises a plurality of booms which are sequentially nested from outside to inside; the left inner side and the right inner side of the lower parts of other arm supports except the innermost arm support are provided with sliding blocks, and the tail ends of the sliding blocks are in sliding contact with the outer sides of the lower parts of the adjacent arm supports; positioning bolts are movably arranged on the left inner side and the right inner side of the middle parts of other arm supports except the arm support on the outermost side, and the positioning bolts can penetrate through the arm support where the positioning bolts are located to be in sliding contact with the inner sides of the middle parts of the adjacent arm supports; the front ends of other arm supports except the arm support at the outermost side are provided with rollers which are in rolling contact with the adjacent arm supports. The utility model discloses clearance is adjusted through setting up the slider about between each cantilever crane, and the clearance is adjusted through the extension length of rotational positioning bolt about, still through gyro wheel rolling contact between each cantilever crane, and the axiality of each cantilever crane is higher in the use, and the friction between each cantilever crane that has significantly reduced, the noise is extremely low, life lengthens greatly.
Description
Technical Field
The utility model belongs to the technical field of the special vehicle technique and specifically relates to a scaling ladder telescopic boom frame, on-vehicle scaling ladder and scaling ladder car are related to.
Background
When in decoration, building materials such as cement, gravel and the like on the ground need to be conveyed to a building, and the labor cost for conveying the building materials is high, and the efficiency is low. If use simple and easy hoist device, need manual operation to need many people to cooperate, the cost of labor is also higher, and the operation is also more loaded down with trivial details, and efficiency is lower. Therefore, the aerial ladder vehicle can well solve the problems, the aerial ladder vehicle is parked on the ground below a building, an operator controls the extension of the aerial ladder telescopic arm support below the building, and the hopper rises along the aerial ladder telescopic arm support to reach a set position for unloading. The operation is realized through the aerial ladder vehicle, only one operator is needed, the operation is simple, and the working efficiency is greatly improved. However, in the test process, the scaling ladder telescopic boom comprises a plurality of booms, the coaxiality of the booms is difficult to guarantee, and in the telescopic process of the scaling ladder telescopic boom, the booms rub against each other seriously, noise exists, and the service life is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aerial ladder telescopic boom frame can adjust the ascending clearance in the upper and lower left and right sides between each cantilever crane, improves each cantilever crane axiality, reduces the friction between each cantilever crane.
In order to achieve the above object, the present invention adopts the following technical solutions:
an aerial ladder telescopic boom comprises a plurality of booms which are sequentially nested from outside to inside; the left inner side and the right inner side of the lower parts of other arm supports except the innermost arm support are provided with sliding blocks, and the tail ends of the sliding blocks are in sliding contact with the outer sides of the lower parts of the adjacent arm supports; positioning bolts are movably arranged on the left inner side and the right inner side of the middle parts of other arm supports except the arm support on the outermost side, and the positioning bolts can penetrate through the arm support where the positioning bolts are located to be in sliding contact with the inner sides of the middle parts of the adjacent arm supports; the front ends of other arm supports except the arm support at the outermost side are provided with rollers which are in rolling contact with the adjacent arm supports.
Preferably, the aerial ladder telescopic boom comprises seven booms which are sequentially nested from outside to inside.
Preferably, the sliding block is positioned at the rear end of the arm support; the positioning bolt is positioned at the rear end of the arm support.
Preferably, the left and right inner sides of the lower parts of the other arm supports except the innermost arm support are provided with blocking pieces, and one side of each blocking piece is provided with a sliding block.
Preferably, the other side of the barrier is provided as a cavity structure.
Preferably, a groove is formed in the middle of the tail end of the sliding block, and the groove is arranged along the extending direction of the sliding block.
Preferably, one or two rollers are arranged on the other arm supports except the outermost arm support.
Preferably, nuts are arranged on the left inner side and the right inner side of the middle part of the other arm supports except the arm support on the outermost side, and positioning bolts are arranged on the nuts.
The utility model also provides a vehicle-mounted scaling ladder, including foretell scaling ladder telescopic boom frame.
The utility model also provides an aerial ladder car, including foretell aerial ladder telescopic boom frame.
The utility model has the beneficial technical effects that:
the utility model discloses a flexible cantilever crane of aerial ladder assembles in on-vehicle aerial ladder with it to be applied to the aerial ladder car, the clearance between about between each cantilever crane is adjusted through the slider that sets up different thickness specifications, and the clearance between about between each cantilever crane is through the extension length regulation of rotatory positioning bolt, still through gyro wheel rolling contact between each cantilever crane, and the axiality of each cantilever crane is higher in the use, the friction between each cantilever crane that has significantly reduced, and the noise is extremely low, and life lengthens greatly.
Drawings
Fig. 1 is a schematic structural view of an aerial ladder telescopic boom frame in an embodiment of the present invention;
FIG. 2 is an enlarged view of section A-A of FIG. 1;
FIG. 3 is a schematic structural view of the slider shown in FIG. 2;
FIG. 4 is an enlarged view of section B-B of FIG. 1;
fig. 5 is a schematic structural view of the innermost arm support in fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Certain embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In an embodiment of the present invention, an aerial ladder telescopic boom 1 is provided, please refer to fig. 1 to 5.
An aerial ladder telescopic boom 1 comprises seven booms which are sequentially nested from outside to inside, and specifically comprises a first boom 11, a second boom 12, a third boom 13, a fourth boom 14, a fifth boom 15, a sixth boom 16 and a seventh boom 17, wherein the first boom 11 is the outermost boom, and the seventh boom 17 is the innermost boom. The seven arm supports can be relatively telescopic, in a contracted state, the length of the contracted seven arm supports is slightly longer than that of the first arm support 11, in an extended state, the seven arm supports are sequentially in tail connection, and the head ends (front ends) and the tail ends (rear ends) of the adjacent arm supports are locked through locking components.
The left and right inner sides of the lower parts of other arm supports (a first arm support 11, a second arm support 12, a third arm support 13, a fourth arm support 14, a fifth arm support 15 and a sixth arm support 16) except for the innermost arm support (a seventh arm support 17) are provided with sliders 2, and the tail ends of the sliders 2 are in sliding contact with the outer sides of the lower parts of the adjacent arm supports. Wherein, the slide block 2 is positioned at the rear end of the arm support.
The sliding blocks 2 are set to be different in thickness specification, and the sliding blocks 2 with different thickness specification are selected to adjust the gap between the upper arm support and the lower arm support.
It should be noted that the sliding block 2 is a wearing part, the sliding block 2 is made of hard plastic, the sliding block 2 needs to be replaced after the use of the device has a set service life, and the sliding block 2 is worn to reduce the wear of each arm support.
In order to prolong the service life of the sliding block 2, a groove 21 is arranged in the middle of the tail end of the sliding block 2, and the groove 21 is arranged along the extending direction of the sliding block 2. In the sliding friction process of the sliding block 2 and the arm support, the contact area of the sliding block 2 and the arm support can be reduced, so that heat generated by friction can be quickly dissipated, and the sliding block 2 is prevented from being damaged due to overheating.
The left and right inner sides of the lower parts of other arm frames (a first arm frame 11, a second arm frame 12, a third arm frame 13, a fourth arm frame 14, a fifth arm frame 15 and a sixth arm frame 16) except the innermost arm frame (a seventh arm frame 17) are provided with blocking pieces 4, and one side of each blocking piece is provided with a sliding block 2. So, it is spacing to slider 2 through blockking piece 4, makes slider 2 assemble more firmly, avoids shifting in the use. The other side of the barrier 4 is provided with a cavity structure 5, so that the weight of each arm support is reduced on the basis of ensuring the strength. The blocking member 4 of the present embodiment may be a separate plate-like structure, or may be a wall plate including a part of the cavity structure 5.
Positioning bolts 31 are movably arranged on the left inner side and the right inner side of the middle parts of other arm frames (a second arm frame 12, a third arm frame 13, a fourth arm frame 14, a fifth arm frame 15, a sixth arm frame 16 and a seventh arm frame 17) except for the arm frame (a first arm frame 11) on the outermost side, and the positioning bolts 31 can penetrate through the arm frame where the positioning bolts are located to be in sliding contact with the inner sides of the middle parts of the adjacent arm frames. Wherein, the positioning bolt 31 is positioned at the rear end position of the arm support.
The positioning bolt 31 is made of nylon materials, and the positioning bolt 31 is also a loss part so as to reduce the abrasion to each arm support.
The distance between the left arm and the right arm is adjusted by rotating the extension length of the positioning bolt 31.
In order to ensure that the positioning bolt 31 is firmly assembled and also to adopt a standard part (the nut 32) to reduce the cost, the nuts 32 are arranged on the left inner side and the right inner side of the middles of other arm supports (the second arm support 12, the third arm support 13, the fourth arm support 14, the fifth arm support 15, the sixth arm support 16 and the seventh arm support 17) except for the arm support (the first arm support 11) on the outermost side, and the positioning bolt 31 is arranged on a screw hole of the nut 32.
The front ends of other arm supports (a second arm support 12, a third arm support 13, a fourth arm support 14, a fifth arm support 15, a sixth arm support 16 and a seventh arm support 17) except the outermost arm support (a first arm support 11) are provided with rollers 6, and the rollers 6 are in rolling contact with the adjacent arm supports.
The arm supports are in rolling contact with each other through the rollers 6, in the process that the arm supports extend out, the front ends of the arm supports have larger impact on the adjacent arm supports, the rollers 6 are arranged at the front ends of the arm supports to be in rolling contact with the adjacent arm supports in thickness, impact between the arm supports is reduced, and in addition, the rollers 6 also achieve the guiding effect of the arm supports.
One or two rollers 6 are arranged on the other arm supports (a second arm support 12, a third arm support 13, a fourth arm support 14, a fifth arm support 15, a sixth arm support 16 and a seventh arm support 17) except the outermost arm support (a first arm support 11). In this embodiment, two rollers 6 are arranged on the second arm support 12, the third arm support 13 and the fourth arm support 14 with larger widths, and one roller 6 is arranged on the fifth arm support 15, the sixth arm support 16 and the seventh arm support 17 with smaller widths, so as to realize good support of the arm supports and reduce product cost.
The embodiment of the utility model provides a still provide an on-vehicle aerial ladder, including the foretell aerial ladder telescopic boom frame 1 of this embodiment.
The embodiment of the utility model provides a still provide an aerial ladder car, including the foretell aerial ladder telescopic boom 1 of this embodiment.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize the telescopic boom 1 of the aerial ladder of the present invention. The utility model discloses an aerial ladder telescopic boom frame 1 assembles it in on-vehicle aerial ladder to be applied to the aerial ladder car, the clearance between about between each cantilever crane is adjusted through the slider 2 that sets up different thickness specifications, the clearance between about between each cantilever crane is through the length of stretching out of rotatory positioning bolt 31 and is adjusted, still through 6 rolling contact of gyro wheel between each cantilever crane, the axiality of each cantilever crane is higher in the use, the friction between each cantilever crane that has significantly reduced, the noise is extremely low, life lengthens greatly. The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An aerial ladder telescopic boom frame is characterized in that: comprises a plurality of arm supports which are sequentially nested from outside to inside; the left inner side and the right inner side of the lower parts of other arm supports except the innermost arm support are provided with sliding blocks, and the tail ends of the sliding blocks are in sliding contact with the outer sides of the lower parts of the adjacent arm supports; positioning bolts are movably arranged on the left inner side and the right inner side of the middle parts of other arm supports except the arm support on the outermost side, and the positioning bolts can penetrate through the arm support where the positioning bolts are located to be in sliding contact with the inner sides of the middle parts of the adjacent arm supports; the front ends of other arm supports except the arm support at the outermost side are provided with rollers which are in rolling contact with the adjacent arm supports.
2. The aerial ladder telescopic boom as claimed in claim 1, wherein: the aerial ladder telescopic boom comprises seven booms which are sequentially nested from outside to inside.
3. The aerial ladder telescopic boom as claimed in claim 1, wherein: the sliding block is positioned at the rear end of the arm support; the positioning bolt is positioned at the rear end of the arm support.
4. The aerial ladder telescopic boom as claimed in claim 1, wherein: the left and right inner sides of the lower parts of other arm supports except the innermost arm support are provided with blocking pieces, and one side of each blocking piece is provided with a sliding block.
5. The aerial ladder telescopic boom as claimed in claim 4, wherein: the other side of the barrier is provided with a cavity structure.
6. The aerial ladder telescopic boom as claimed in claim 1, wherein: the middle position of the tail end of the sliding block is provided with a groove, and the groove is arranged along the extending direction of the sliding block.
7. The aerial ladder telescopic boom as claimed in claim 1, wherein: and one or two rollers are arranged on the other arm supports except the outermost arm support.
8. The aerial ladder telescopic boom as claimed in claim 1, wherein: nuts are arranged on the left inner side and the right inner side of the middle parts of other arm supports except the arm support on the outermost side, and positioning bolts are arranged on the nuts.
9. The utility model provides a vehicle-mounted aerial ladder which characterized in that: comprising an aerial ladder boom as claimed in any of claims 1 to 8.
10. An aerial ladder car which is characterized in that: comprising an aerial ladder boom as claimed in any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021364468.6U CN212893577U (en) | 2020-07-10 | 2020-07-10 | Aerial ladder telescopic boom, vehicle-mounted aerial ladder and aerial ladder vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021364468.6U CN212893577U (en) | 2020-07-10 | 2020-07-10 | Aerial ladder telescopic boom, vehicle-mounted aerial ladder and aerial ladder vehicle |
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| CN212893577U true CN212893577U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021364468.6U Active CN212893577U (en) | 2020-07-10 | 2020-07-10 | Aerial ladder telescopic boom, vehicle-mounted aerial ladder and aerial ladder vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228477A1 (en) * | 2021-04-27 | 2022-11-03 | 刘素华 | Low-thickness rolling guide telescopic rocker arm |
-
2020
- 2020-07-10 CN CN202021364468.6U patent/CN212893577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228477A1 (en) * | 2021-04-27 | 2022-11-03 | 刘素华 | Low-thickness rolling guide telescopic rocker arm |
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