Main folding arm double-supporting frame and elevating vehicle

Abstract

The utility model provides a main folding arm double-supporting frame and an elevating vehicle, and belongs to the technical field of supporting frames of vehicle arm frame devices, the main folding arm double-supporting frame comprises a fixing frame body, a main bracket and a side bracket, the main bracket is vertically and adjustably installed at the top of the fixing frame body, and the side bracket is vertically and adjustably installed on the side of the main bracket; the top end of the main bracket is provided with a first supporting end for supporting the main arm, and the top end of the side bracket is provided with a second supporting end for supporting the folding arm; the lifting vehicle is provided with the main folding arm double-supporting frame. The overall height position of the main arm and the folding arm can be matched by adjusting the height position of the main bracket. The height difference between the main arm and the folding arm can be adjusted and matched through the side bracket of which the position can be vertically adjusted, so that the side bracket can also realize fitting support on the folding arm on the premise that the main bracket realizes fitting support on the main arm. The main folding arm double-supporting frame is actively matched with the positions of the main arm and the folding arm through adjustment of the main folding arm double-supporting frame, secondary adjustment of the supporting frame is not needed, the adaptability is improved, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of support frames for vehicle boom devices, and more specifically, to a main folding arm double support frame and a lifting vehicle. Background Art

[0002] For some fire trucks and engineering vehicles with lifting functions, their arm devices adopt a folding structure. After the arm device is folded and stored, its folding arms are located side by side with the main arm. For example, the arm structure and fire truck disclosed in the utility model patent with publication number CN219481394U can be seen from the attached diagram of the patent. Figure 1 It can be seen that after the boom assembly is folded, the fourth intermediate boom 24 and the tail boom 25 (corresponding to the above-mentioned folding boom) are located to the side of the first boom 20 (corresponding to the above-mentioned main boom). When the main boom and folding boom are folded, they need to be supported by a support frame to ensure their stability.

[0003] Existing support frames are all integrated structures, with the main boom and folding arm stored and placed on top. However, in actual use, due to the length of the arm assembly, there is a certain height deviation when folded. Furthermore, due to the differences in the actual processing and installation of each vehicle, the arm assembly dimensions may also vary from vehicle to vehicle within the same batch. As a result, the same support frame cannot perfectly support both the main boom and folding arm. In such cases, the only solution on site is to cut the support frame body or add a pad, which increases the production and assembly process, delays the construction period, and affects the efficiency of vehicle assembly. Summary of the Invention

[0004] In order to solve the shortcomings of the existing technology, the utility model provides a main folding arm double support frame and a lifting vehicle, which can actively adapt to the position of the main arm and the folding arm through its own adjustment, without the need for secondary adjustment of the support frame, thereby increasing adaptability and improving assembly efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present application provides a main folding arm double support frame, including a fixed frame body, a main bracket and a side bracket, the main bracket is vertically adjustable and installed on the top of the fixed frame body, and the side bracket is vertically adjustable and installed on the side of the main bracket; the top of the main bracket has a first support end for supporting the main arm, and the top of the side bracket has a second support end for supporting the folding arm, and the fixed frame body has a connection structure for connecting to the vehicle. By adjusting the height position between the main bracket and the fixed frame body, the height position of the main arm is adapted to ensure the fitting support of the first support end and the main arm. Through the side bracket with vertically adjustable position, the height difference between the main arm and the folding arm can be adjusted and adapted, so that under the premise that the first support end supports the main arm, the second support end can also achieve fitting support for the folding arm. The main folding arm double support frame can actively adapt to the position of the main arm and the folding arm through its own adjustment, without the need to adjust the support frame a second time, thereby increasing adaptability and improving assembly efficiency.

[0006] Optionally, a plurality of adjustment bolt holes are vertically arranged on the top side of the fixing frame body and the bottom side of the main bracket. The adjustment bolt holes at any height position on the fixing frame body are aligned with the adjustment bolt holes at any height position on the main bracket and are bolted to each other. By aligning and connecting the adjustment bolt holes at different height positions on the fixing frame body and the main bracket, the height position of the main bracket can be adjusted.

[0007] Optionally, the side brackets may be vertically slidably connected to the main brackets by support bolts. The main brackets may be provided with support plates located at the bottom of the side brackets. The support bolts may be screwed through the support plates from the bottom and abut the side brackets. By tightening the support bolts, the height of the side brackets may be adjusted to achieve relative height adjustment of the first and second support ends, ensuring that the height of the first support end is adapted to the main arm and the height of the second support end is adapted to the folding arm.

[0008] Optionally, the side brackets further include connecting bolts. The side walls of the side brackets have vertically extending adjustment holes, through which the connecting bolts pass and are screwed into the main bracket. The side brackets can slide vertically along the connecting bolts through the adjustment holes. The side brackets can slide vertically along the connecting bolts through the adjustment holes, achieving vertical positional adjustment. Once the height of the side brackets is determined, tightening the connecting bolts secures the side brackets, preventing them from moving up and down.

[0009] Optionally, the first support end is a first support groove that matches the width of the main arm, and the second support end is a second support groove that matches the width of the folding arm. The main arm can be placed in the first support groove, and the folding arm can be placed in the second support groove, so that the main arm and the folding arm can be supported while reducing the left and right shaking of the two, thereby improving the support stability.

[0010] Optionally, both the top ends of the first and second support grooves are provided with chamfers that slope inward, and the sidewalls and bottom walls of the first and second support grooves are paved with nylon pads. The chamfers serve as guides, facilitating alignment of the main arm and folding arm. The nylon pads protect the paint finish and act as a cushion when folded and stored.

[0011] Optionally, the first support end and the second support end are both provided with sensors facing the top, the sensors being travel sensors or distance sensors. The sensors can sense in real time whether the main arm and the folding arm are stowed and supported in place, thereby ensuring driving safety.

[0012] Optionally, the main body of the fixing frame includes an upper fixing frame and a lower fixing frame, with the connecting structure located on the lower fixing frame. The lower fixing frame includes two lower support columns arranged symmetrically on both sides, with a lower crossbeam and an oblique support beam connected between the two lower support columns. The upper fixing frame includes two upper support columns arranged symmetrically on both sides, with an upper crossbeam connected between the two upper support columns, and the main bracket is vertically adjustable and mounted on the two upper support columns. The bottom ends of the two upper support columns are respectively bolted to the top ends of the two lower support columns. The lower crossbeam connects the two lower support columns and increases the connection rigidity through the oblique support beam to increase the load-bearing capacity of the lower fixing frame. Through the above structure, the overall assembly of the main body of the fixing frame is achieved, and its own load-bearing capacity can be guaranteed.

[0013] Optionally, the connection structure includes a connection flange at the bottom end of the lower support column and bolt connection holes distributed on the lower support column. The entire fixing frame body can be bolted to the vehicle through the connection flange and the bolt connection holes to achieve installation.

[0014] A lifting vehicle comprises a vehicle body and a main folding arm dual support frame as described above. A main arm and a folding arm for lifting are provided on top of the vehicle body. The main folding arm dual support frame is mounted on the vehicle body. The main arm can be stowed and supported at a first support end, and the folding arm can be stowed and supported at a second support end. The main arm and the folding arm are effectively supported and protected by the first and second support ends, which are adjustable in height.

[0015] The technical solution of this application has the following advantages over the prior art:

[0016] After the main folding arm dual support frame is installed on the vehicle body through the connection structure, it can adjust the height position of the main bracket to match the overall height position of the main arm and folding arm, ensuring the main bracket and the main arm are closely supported. The vertically adjustable side bracket can be adjusted to match the height difference between the main arm and the folding arm. Under the premise that the main bracket provides close support for the main arm, the side bracket can also provide close support for the folding arm. The main folding arm dual support frame can actively adapt to the position of the main arm and the folding arm through its own adjustment, eliminating the need for secondary adjustment of the support frame, increasing adaptability and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 Schematic diagram of the overall structure of the main folding arm double support frame;

[0019] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0020] Figure 3 Front view of the main folding arm double support frame.

[0021] Icons: 1. Fixing frame body; 2. Main bracket; 3. Side bracket; 4. Adjustment bolt hole; 5. Support bolt; 6. Support plate; 7. Connecting bolt; 8. Adjustment hole; 9. First support groove; 10. Second support groove; 11. Sensor; 12. Chamfer; 13. Nylon pad; 14. Upper fixing frame; 15. Lower fixing frame; 16. Lower support column; 17. Lower crossbeam; 18. Oblique support beam; 19. Upper support column; 20. Upper crossbeam; 21. Connecting flange; 22. Bolt connection hole. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] Example 1:

[0024] This embodiment provides a main folding arm double support frame based on Figure 1 As shown, it includes a fixing frame body 1, a main bracket 2, and a side bracket 3. The main bracket 2 is vertically adjustable and mounted on the top of the fixing frame body 1. The side bracket 3 is vertically adjustable and mounted to the side of the main bracket 2. The top of the main bracket 2 has a first support end for supporting the main arm, and the top of the side bracket 3 has a second support end for supporting the folding arm. The fixing frame body 1 has a connection structure for connecting to the vehicle. After the main folding arm double support frame is installed on the vehicle, the height position of the main arm is adjusted by adjusting the height position between the main bracket 2 and the fixing frame body 1 to adapt to the height position of the main arm, ensuring that the first support end and the main arm are closely supported. The vertically adjustable side bracket 3 can be adjusted to adapt to the height difference between the main arm and the folding arm, so that while the first support end can provide close support for the main arm, the second support end can also provide close support for the folding arm. The main folding arm double support frame can actively adapt to the position of the main arm and the folding arm through its own adjustment, eliminating the need for secondary adjustment of the support frame, thereby increasing adaptability and improving assembly efficiency.

[0025] In detail, based on Figure 1As shown, the top side of the fixing frame body 1 and the bottom side of the main bracket 2 are both vertically arranged with a plurality of adjustment bolt holes 4. Adjustment bolt holes 4 at any height on the fixing frame body 1 align with adjustment bolt holes 4 at any height on the main bracket 2 and are bolted together. By aligning and connecting the adjustment bolt holes 4 at different heights on the fixing frame body 1 and the main bracket 2, the height of the main bracket 2 can be adjusted to ensure that the first support end can abut against the bottom side of the main arm without having to cut or add a shim. Furthermore, support bolts 5 are included. The side bracket 3 is vertically slidably connected to the main bracket 2. The main bracket 2 is provided with a support plate 6 located at the bottom of the side bracket 3. The support bolts 5 screw through the support plate 6 from the bottom side and abut against the side bracket 3. By tightening the support bolts 5, the height position of the side bracket 3 is adjusted to achieve the relative height adjustment of the first and second support ends, ensuring that after the first support end is adjusted to the height of the main arm, the second support end can be adjusted to the height of the folding arm.

[0026] In this embodiment, based on Figure 1 and Figure 2 As shown, the side bracket 3 also includes connecting bolts 7. Vertically extending adjustment holes 8 are defined in the side walls of the side brackets 3. The connecting bolts 7 pass through the adjustment holes 8 and are screwed into the main bracket 2. The side bracket 3 can slide vertically along the connecting bolts 7 through the adjustment holes 8, achieving vertical positional movement. Once the height of the side bracket 3 is determined, tightening the connecting bolts 7 secures the side bracket 3, preventing it from moving up and down.

[0027] Preferably, based on Figure 1 As shown, the side bracket 3 can be configured as an inverted trapezoidal structure so that the pressure on the top thereof can be better transmitted to the supporting bolt 5 .

[0028] Further, based on Figure 1 As shown, the first support end is a first support groove 9 that matches the width of the main arm, and the second support end is a second support groove 10 that matches the width of the folding arm. The main arm is placed in the first support groove 9, and the folding arm is placed in the second support groove 10. This allows the main arm and the folding arm to be supported while reducing their left and right shaking, thereby improving the support stability.

[0029] Preferably, based on Figure 1 As shown, both sides of the top of the first support groove 9 and the second support groove 10 are provided with chamfers 12 inclined toward the inside. When the main arm and the side arm are placed, the chamfers 12 can play a guiding role and facilitate alignment. At the same time, based on Figure 3 As shown, the side walls and bottom walls of the first and second support grooves 9, 10 are covered with nylon pads 13 to protect the painted surfaces of the bracket, main arm, and folding arm, and to serve as a buffer when folded and stored. In this embodiment, the chamfer 12, as a location subject to high-frequency impact, can also be covered with nylon pads 13.

[0030] Further, based on Figure 1 As shown, both the first and second support ends are equipped with top-facing sensors 11, which are travel or distance sensors. Specifically, in this embodiment, sensors 11 are located on the bottom walls of the first and second support grooves 9 and 10. These sensors 11 provide real-time information on whether the main arm and folding arm are properly stowed and supported, ensuring driving safety.

[0031] In this embodiment, based on Figure 3 As shown, the fixing frame body 1 includes an upper fixing frame 14 and a lower fixing frame 15, with a connecting structure located on the lower fixing frame 15. The lower fixing frame 15 includes two lower support columns 16 arranged symmetrically, with a lower crossbeam 17 and an inclined support beam 18 connected between the two lower support columns 16. The lower crossbeam 17 connects the two lower support columns 16, and the inclined support beam 18 increases the connection rigidity, thereby increasing the load-bearing capacity of the lower fixing frame 15. The upper fixing frame 14 includes two upper support columns 19 arranged symmetrically, with an upper crossbeam 20 connected between the two upper support columns 19 to connect the two upper support columns 19. The main bracket 2 is vertically adjustable and mounted on the two upper support columns 19, with adjustment bolt holes 4 distributed on the two upper support columns 19. The bottom ends of the two upper support columns 19 are bolted to the top ends of the two lower support columns 16, respectively. Specifically, flanges can be provided at the contact point to achieve bolt connection. Through the above structure, the fixing frame body 1 can be assembled while ensuring its own load-bearing capacity.

[0032] Further, based on Figure 3 As shown, the connection structure includes a connection flange 21 at the bottom end of the lower support column 16 and bolt connection holes 22 distributed on the lower support column 16. The entire fixing frame body 1 can be bolted to the vehicle through the connection flange 21 and the bolt connection holes 22 to achieve installation.

[0033] In this embodiment, the lower fixing frame 15 is welded from pipes, and the upper fixing frame 14, the main bracket 2, and the side bracket 3 are all made of bent and welded steel plates. The connection between the main bracket and the upper fixing frame 14 can be wrapped around each other to improve the connection strength.

[0034] The assembly method of the main folding arm double support frame shown in this embodiment is as follows:

[0035] Assemble the lower fixing frame 15 and the upper fixing frame 14 into the fixing frame body 1 by bolt connection, and install the fixing frame body 1 on the vehicle through the connecting structure. Install the sensor 11 on the main bracket 2 and the side bracket 3, and connect the side bracket 3 to the side of the main bracket 2 through the connecting bolt 7. According to the height position of the main arm, align the adjustment bolt holes 4 at the appropriate height position on the main bracket 2 and the fixing frame body 1, bolt the two together, and firmly tighten the bolts according to the standard tightening torque. After the position of the main bracket 2 is adjusted, according to the height position of the folding arm, by screwing the support bolt 5, the adjustment hole 8 on the side bracket 3 slides along the connecting bolt 7 to adjust the height position of the side bracket 3. After the height position of the side bracket 3 is determined, firmly tighten the connecting bolt 7 according to the standard tightening torque to fix the position of the side bracket 3.

[0036] Example 2:

[0037] This embodiment provides a lifting vehicle, comprising a vehicle body and a main folding arm dual support frame as described above. The vehicle body can be a fire truck or engineering vehicle with a lifting function. A main arm and a folding arm are provided on top of the vehicle body for lifting. The main folding arm dual support frame is mounted on the vehicle body, with the main arm being stowable and supported at a first support end, and the folding arm being stowable and supported at a second support end. The height-adjustable first and second support ends enable simultaneous, close support of the main arm and the folding arm.

[0038] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A main folding arm double support frame, characterized by: The invention comprises a fixing frame body (1), a main bracket (2) and a side bracket (3); the main bracket (2) is vertically adjustable and mounted on the top of the fixing frame body (1); the side bracket (3) is vertically adjustable and mounted on the side of the main bracket (2); the top end of the main bracket (2) has a first supporting end for supporting a main arm, the top end of the side bracket (3) has a second supporting end for supporting a folding arm, and the fixing frame body (1) has a connection structure for connecting to a vehicle.

2. The main folding arm double support frame according to claim 1, characterized in that: A plurality of adjusting bolt holes (4) are vertically arranged on the top side of the fixing frame body (1) and the bottom side of the main bracket (2); the adjusting bolt holes (4) at any height position on the fixing frame body (1) are aligned with the adjusting bolt holes (4) at any height position on the main bracket (2) and are bolted to each other.

3. The main folding arm double support frame according to claim 1 or 2, characterized in that: It also includes a supporting bolt (5), the side bracket (3) is vertically slidably connected to the main bracket (2), the main bracket (2) is provided with a supporting plate (6) located at the bottom of the side bracket (3), and the supporting bolt (5) is screwed from the bottom side through the supporting plate (6) and abuts against the side bracket (3).

4. The main folding arm double support frame according to claim 3, characterized in that: The main bracket (2) further comprises a connecting bolt (7). A vertically extending adjustment hole (8) is provided on the side wall of the side bracket (3). The connecting bolt (7) passes through the adjustment hole (8) and is screwed to the main bracket (2). The side bracket (3) can slide vertically along the connecting bolt (7) through the adjustment hole (8).

5. The main folding arm double support frame according to claim 1 or 2, characterized in that: The first supporting end is a first supporting groove (9) matching the width of the main arm, and the second supporting end is a second supporting groove (10) matching the width of the folding arm.

6. The main folding arm double support frame according to claim 5, characterized in that: Both sides of the top ends of the first supporting groove (9) and the second supporting groove (10) are provided with chamfers (12) inclined toward the inside thereof, and the side walls and bottom walls of the first supporting groove (9) and the second supporting groove (10) are paved with nylon pads (13).

7. The main folding arm double support frame according to claim 1 or 2, characterized in that: The first supporting end and the second supporting end are both provided with a sensor (11) facing the top, and the sensor (11) is a travel sensor or a distance sensor.

8. The main folding arm double support frame according to claim 1 or 2, characterized in that: The fixing frame body (1) comprises an upper fixing frame (14) and a lower fixing frame (15), and the connecting structure is located on the lower fixing frame (15); The lower fixing frame (15) includes two lower support columns (16) symmetrically arranged on the left and right, and a lower cross beam (17) and an oblique support beam (18) are connected between the two lower support columns (16); the upper fixing frame (14) includes two upper support columns (19) symmetrically arranged on the left and right, and an upper cross beam (20) is connected between the two upper support columns (19); the main bracket (2) is vertically adjustable and mounted on the two upper support columns (19); the bottom ends of the two upper support columns (19) are respectively bolted to the top ends of the two lower support columns (16).

9. The main folding arm double support frame according to claim 8, characterized in that: The connection structure comprises a connection flange (21) located at the bottom end of the lower support column (16) and bolt connection holes (22) distributed on the lower support column (16).

10. A lifting vehicle, characterized in that: It comprises a vehicle body and a main folding arm double support frame as described in any one of claims 1 to 9, wherein a main arm and a folding arm for lifting are provided on the top of the vehicle body, and the main folding arm double support frame is installed on the vehicle body, the main arm can be accommodated and supported at the first support end, and the folding arm can be accommodated and supported at the second support end.

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