CN211893401U

CN211893401U - Auxiliary frame of fire engine and fire engine

Info

Publication number: CN211893401U
Application number: CN202020139011.9U
Authority: CN
Inventors: 卿丽纯; 邓先义; 李凤斌; 徐亮; 宋璐闻
Original assignee: Hunan Shuangda Electromechanical Co ltd
Current assignee: Hunan Shuangda Electromechanical Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-11-10
Anticipated expiration: 2030-01-21

Abstract

The utility model provides an auxiliary frame of a fire fighting truck and the fire fighting truck, wherein the auxiliary frame comprises a first longitudinal beam, a second longitudinal beam and a third longitudinal beam which are respectively arranged in pairs and are arranged at relative intervals; the two second longitudinal beams and the two third longitudinal beams are respectively positioned at the inner sides of the two first longitudinal beams; the first end plate is arranged between the two first longitudinal beams, and two ends of the first end plate are respectively connected with the two first longitudinal beams; the second longitudinal beam and the third longitudinal beam are respectively arranged on two sides of the first end plate; the lateral distance between the first longitudinal beam and the third longitudinal beam is greater than the lateral distance between the first longitudinal beam and the second longitudinal beam. The auxiliary frame is provided with a double-layer box type structure, so that the strength and the rigidity of the auxiliary frame are improved, and the bearing capacity of the auxiliary frame on the whole vehicle is enhanced; and the distance that sets up third longeron and first longeron in the one end of sub vehicle frame is greater than the distance of second longeron and first longeron, and the intensity and the anti ability of buckling of the double-deck box structure of reinforcing sub vehicle frame one end can bear the weight of the water pump assembly more steadily.

Description

Auxiliary frame of fire engine and fire engine

Technical Field

The utility model relates to a frame construction technical field, in particular to sub vehicle frame and fire engine of fire engine.

Background

The sub vehicle frame is the main load-bearing member of fire engine, and whole car passes through the sub vehicle frame and links to each other with the frame, and in the fire engine, the sub vehicle frame not only will satisfy whole car facial make-up and bear the weight of the requirement, still arranges the coupling assembling who is connected with facial make-up, frame in the side of sub vehicle frame simultaneously, and this just requires the sub vehicle frame to have better intensity and rigidity. In order to improve the performance of the auxiliary frame in the aspect, two solutions of heightening the end face height of a longitudinal beam of the auxiliary frame and increasing the material thickness of the longitudinal beam are generally adopted, the first method raises the gravity center of the auxiliary frame and increases unsafe factors; the second method has a limited effect on subframe performance due to more thickness increase limiting factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sub vehicle frame and fire engine of fire engine to solve among the prior art sub vehicle frame performance and improve limited technical problem.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a sub vehicle frame of fire engine, include: the first longitudinal beams are arranged in pairs, and the two first longitudinal beams are arranged at intervals oppositely; the second longitudinal beams are arranged in pairs, and the two second longitudinal beams are arranged at intervals oppositely; the third longitudinal beams are arranged in pairs, and the two third longitudinal beams are arranged at intervals oppositely; the two second longitudinal beams and the two third longitudinal beams are respectively positioned on the inner sides of the two first longitudinal beams; the first end plate is arranged between the two first longitudinal beams, and two ends of the first end plate are respectively connected with the two first longitudinal beams; the second longitudinal beam and the third longitudinal beam are respectively arranged on two sides of the first end plate; a lateral distance between the first stringer and the third stringer is greater than a lateral distance between the first stringer and the second stringer.

Further, the subframe includes: the second end plate is arranged between the two third longitudinal beams, and two ends of the second end plate are respectively connected with the two third longitudinal beams; and the second end plate and the two third longitudinal beams form a reserved space at the end part of the auxiliary frame.

Furthermore, the auxiliary frame further comprises a plurality of partition plates, the partition plates are arranged between the two first longitudinal beams at intervals along the longitudinal direction of the auxiliary frame, two ends of each partition plate are respectively arranged on the two first longitudinal beams, and the partition plates are respectively connected with the two second longitudinal beams which are oppositely arranged.

Further, the second longitudinal beam comprises a plurality of sub-beam bodies, and the sub-beam bodies are respectively arranged between two adjacent partition plates or between the partition plate and the first end plate.

Furthermore, the auxiliary frame further comprises two cover plates which are arranged oppositely at intervals, the two cover plates are respectively covered on the first longitudinal beams, and the two side ends of each cover plate are respectively connected with the two first longitudinal beams which are arranged oppositely; the cover plate forms a gap between the two oppositely arranged third longitudinal beams; the partition plate is provided with a containing hole, and a containing cavity is formed between the two cover plates, the two second longitudinal beams which are oppositely arranged and the first end plate.

According to the utility model discloses an on the other hand still provides a fire engine, including frame, coupling assembling, water pump assembly and foretell sub vehicle frame, sub vehicle frame set up in on the frame, the frame with sub vehicle frame passes through coupling assembling connects, water pump assembly set up in sub vehicle frame is located the one end of third longeron.

Furthermore, the fire fighting truck comprises a rear leg assembly and a support rod, the rear leg assembly is mounted at one end, located on the second longitudinal beam, of the auxiliary frame, and a gap is formed between the rear leg assembly and the auxiliary frame; the support rod is installed between the rear support leg assembly and the auxiliary frame.

Furthermore, the rear leg assembly is connected with the auxiliary frame in a welded mode, and one end of the frame is located on the inner side of the rear leg assembly.

Furthermore, the fire engine includes preceding landing leg subassembly, preceding landing leg subassembly install in the sub vehicle frame is located the one end of third longeron, preceding landing leg subassembly with have the clearance between the sub vehicle frame, the one end of frame passes preceding landing leg subassembly with the clearance between the sub vehicle frame.

Further, the front leg assembly is hinged to the subframe.

The utility model provides a fire engine's sub vehicle frame is provided with double-deck box structure, has improved sub vehicle frame's intensity and rigidity, has strengthened sub vehicle frame to the bearing capacity of whole car facial make-up; and the distance that sets up third longeron and first longeron in the one end of sub vehicle frame is greater than the distance of second longeron and first longeron, and the intensity and the anti ability of buckling of the double-deck box structure of reinforcing sub vehicle frame one end can be used for bearing water pump assembly more steadily.

Drawings

Fig. 1 is a schematic structural diagram of a subframe of a fire fighting truck according to an embodiment of the present invention, in which a front leg assembly and a rear leg assembly of the fire fighting truck are shown;

FIG. 2 is a schematic structural view of a second end plate and a third side member forming a reserved space in the subframe shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the headspace in the subframe of FIG. 2, showing the cover plate;

FIG. 4 is a schematic view of the connection between the rear leg assembly and the subframe shown in FIG. 1.

Description of reference numerals:

10. an auxiliary frame; 20. a front leg assembly; 30. a rear leg assembly; 40. a support bar;

11. a first stringer; 12. a second stringer; 13. a third stringer; 14. a first end plate; 15. a second end plate; 16. reserving space; 17. a partition plate; 18. a cover plate; 19. a receiving cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. In the description of the present invention, the related orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, wherein "inside" and "outside" refer to the inside and outside directions of fig. 1. It is to be understood that such directional terms are merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operative in a particular orientation, and therefore should not be taken as limiting the invention.

In addition, the descriptions of "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number or order of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 3, in a first aspect of embodiments of the present application, there is provided a subframe of a fire fighting vehicle, including: the first longitudinal beams 11 are arranged in pairs, and the two first longitudinal beams 11 are arranged oppositely at intervals; the second longitudinal beams 12 are arranged in pairs, and the two second longitudinal beams 12 are arranged oppositely at intervals; the third longitudinal beams 13 are arranged in pairs, and the two third longitudinal beams 13 are arranged oppositely at intervals; the two second longitudinal beams 12 and the two third longitudinal beams 13 are respectively positioned at the inner sides of the two first longitudinal beams 11; the first end plate 14 is arranged between the two first longitudinal beams 11, and two ends of the first end plate are respectively connected with the two first longitudinal beams 11; the second longitudinal beam 12 and the third longitudinal beam 13 are respectively arranged at two sides of the first end plate 14; the transverse distance between the first longitudinal beam 11 and the third longitudinal beam 13 is greater than the transverse distance between the first longitudinal beam 11 and the second longitudinal beam 12.

In order to improve the strength and rigidity of the subframe, the subframe 10 of the embodiment of the present application is configured to be a double-layer box structure, so as to enhance the load-bearing capacity of the subframe 10 for the whole truck. Specifically, one end of the subframe 10 is provided with a third longitudinal beam 13 corresponding to the first longitudinal beam 11, the other part of the subframe 10 in the longitudinal direction is provided with a second longitudinal beam 12 corresponding to the first longitudinal beam 11, and the second longitudinal beam 12 and the third longitudinal beam 13 are both positioned on the inner side of the first longitudinal beam 11.

In addition, since the front end of the subframe 10 needs to bear the water pump assembly, that is, the water pump assembly is disposed at one end of the third longitudinal beam 13 on the subframe 10, the box-shaped structure formed by the first longitudinal beam 11 and the third longitudinal beam 13 needs to have greater strength and rigidity to meet the bearing requirement. Specifically, the second longitudinal beam 12 and the third longitudinal beam 13 are connected to the first end plate 14 and are separated by the first end plate 14, and the lateral distance between the third longitudinal beam 13 and the first longitudinal beam 11 is greater than the lateral distance between the second longitudinal beam 12 and the first longitudinal beam 11. That is to say, the greater the distance between two longitudinal beams of the double-layer box-type structure is, the greater the strength of the formed box-type structure is, and the stronger the bending resistance is.

It is understood that the first end plate 14 is perpendicular to the extending direction of the subframe 10, i.e. the first end plate 14 is arranged perpendicular to the first longitudinal beam 11. The two second longitudinal beams 12 are respectively arranged in parallel with the first longitudinal beam 11 at intervals, and the two third longitudinal beams 13 are respectively arranged in parallel with the first longitudinal beam 11 at intervals.

In some embodiments, the subframe 10 includes a second end plate 15 disposed between the two third longitudinal beams 13, and two ends of the second end plate are respectively connected to the two third longitudinal beams 13; the second end plate 15 and the two third longitudinal beams 13 form a space 16 at the end of the subframe 10. It will be appreciated that the second end plates 15 are arranged perpendicular to the third longitudinal beams 13, respectively. A headspace 16 is formed at the end of the subframe 10. in the present embodiment, the headspace 16 is located at the front end of the subframe 10 for mounting a water pump assembly. Specifically, referring to fig. 2 and 3, the first end plate 14, the first longitudinal beam 11 and the second end plate 15 connected thereto, and the third longitudinal beam 13 connected thereto, respectively, enclose a U-shaped reinforcing structure located at the front end of the subframe 10, and the upper and lower cover plates 18 are not disposed in the reserved space 16. Wherein, the first longitudinal beam 11 and the third longitudinal beam 13 are provided with mounting holes according to the requirement of mounting the water pump assembly. The U-shaped reinforcing structure enhances the strength of the subframe 10 and improves the load-bearing capacity of the front end portion of the subframe 10.

In some embodiments, the subframe 10 further includes a plurality of bulkheads 17, the plurality of bulkheads 17 are disposed between the two first longitudinal beams 11 at intervals along the longitudinal direction of the subframe 10, two ends of the bulkheads 17 are respectively mounted on the two first longitudinal beams 11, and the bulkheads 17 are respectively connected to the two second longitudinal beams 12 disposed opposite to each other. Referring to fig. 1, a plurality of partitions 17 are connected between the two first longitudinal beams 11, and the partitions 17 are used for reinforcing the strength of the first longitudinal beams 11. The bulkhead 17 is connected to the second side member 12 to connect the first side member 11 and the second side member 12 together, thereby improving the strength of the subframe 10.

It is understood that the second longitudinal beam 12 may be a unitary structure or a split structure. Further, the second longitudinal beam 12 includes a plurality of sub-beam bodies, and the sub-beam bodies are respectively disposed between two adjacent bulkheads 17 or between a bulkhead 17 and the first end plate 14. Specifically, the second longitudinal beam 12 may be divided into a plurality of sub-beam bodies, the sub-beam bodies being mounted between the respective bulkheads 17, and the sub-beam body at the front end being mounted between the bulkheads 17 and the first end plate 14. The second side member 12 is divided into a plurality of sub-member bodies, and the sub-member bodies can be welded between the bulkheads 17 after the plurality of bulkheads 17 are welded to the first side member 11, thereby facilitating the assembly of the subframe 10. It should be noted that the adjacent sub-beam bodies are connected to each other, which further enhances the strength of the subframe 10.

In some embodiments, the subframe 10 further includes two cover plates 18 disposed at an opposite interval, the two cover plates 18 are respectively disposed on the first longitudinal beams 11, and two side ends of the cover plates 18 are respectively connected to the two first longitudinal beams 11 disposed opposite to each other. The cover 18 forms a gap between the two oppositely disposed third longitudinal beams 13. The partition 17 is formed with a receiving hole, and a receiving cavity 19 is formed between the two cover plates 18, the two second side members 12 arranged opposite to each other, and the first end plate 14.

It can be understood that, referring to the cover plate 18 of fig. 3, the cover plate 18 forms a gap between the two oppositely disposed third longitudinal beams 13, that is, the cover plate 18 is covered on the U-shaped reinforcing structure, and the cover plate 18 is not covered on the reserved space 16, so as to facilitate the installation and placement of the water pump assembly in the reserved space 16. The cover 18 supports the subframe 10. Referring to fig. 1, the bulkhead 17 is formed with receiving holes, specifically, the bulkhead 17 is connected to the tip end of the second side member 12, and is connected to the first side member 11 and the second side member 12, respectively, while forming receiving holes between the second side members 12 disposed opposite to each other. That is, although the partition 17 is formed with the receiving hole, the strength of the subframe 10 can be secured. The two cover plates 18, the two second longitudinal beams 12 and the first end plate 14 which are oppositely arranged form an accommodating cavity 19 with one open end between. The accommodating cavity 19 is used for placing the aerial ladder when the aerial ladder is not used. It should be noted that, in order to facilitate the aerial ladder to be placed into the accommodating cavity 19 after being used, components such as a slide rail and a fixing member are further disposed inside the aerial ladder, so that the aerial ladder is placed along the slide rail, and the structures and the installation manners of the slide rail and the fixing member are not particularly limited in the embodiment of the present application.

The second aspect of this application embodiment provides a fire engine, including frame, coupling assembling, water pump assembly and the sub vehicle frame of above-mentioned arbitrary embodiment, sub vehicle frame 10 sets up on the frame, and the frame passes through coupling assembling with sub vehicle frame 10 to be connected, and water pump assembly sets up in the one end that sub vehicle frame 10 is located third longeron 13. Specifically, the water pump assembly is installed in the reserved space 16 of the subframe 10 and fixed on the subframe 10 through mounting holes formed in the first longitudinal beam 11 and the third longitudinal beam 13. The U-shaped reinforcing structure arranged at one end part of the auxiliary frame 10 increases the strength of the auxiliary frame 10 and improves the bearing capacity of the auxiliary frame on the water pump assembly. Since the subframe 10 has the technical effects described above, the fire engine having the subframe 10 also has corresponding technical effects, and will not be described in detail herein.

In some embodiments, the fire fighting vehicle comprises a rear leg assembly 30 and a support rod 40, the rear leg assembly 30 is mounted on the subframe 10 at one end of the second longitudinal beam 12, a gap is formed between the rear leg assembly 30 and the subframe 10, and the support rod 40 is mounted between the rear leg assembly 30 and the subframe 10, as shown in fig. 4. It should be noted that, the turntable support assembly and the turntable need to be installed at the rear end portion of the subframe 10, and the support rod 40 is disposed in the gap between the rear leg assembly 30 and the subframe 10, so that the strength of the subframe 10 can be enhanced, and the supporting function for the turntable support assembly and the turntable can be improved. Further, the support rod 40 has one end mounted to the rear leg assembly 30 and the other end mounted to the cover 18 of the subframe 10 between the first longitudinal member 11 and the second longitudinal member 12. The installation position of the support rod 40 enables the stress of the rear support leg assembly 30 and the turntable support assembly to be transmitted to the small box structures on two sides of the double-layer box structure, so that the connection between the auxiliary frame 10 and the turntable support assembly and the rear support leg assembly 30 is more stable and reliable.

Referring to FIG. 4, in the present embodiment, the rear leg assembly 30 is located below the subframe 10 to allow sufficient space above the fire truck subframe 10 for the loading of other components. In the embodiment of the present application, the reserved space 16 for installing the water pump assembly and the rear leg assembly 30 are respectively located at two ends of the first longitudinal beam 11, so as to avoid interference.

Further, the rear leg assembly 30 is welded to the subframe 10, and one end of the frame is located inside the rear leg assembly 30. Specifically, referring to fig. 4, the rear leg assembly 30 includes a rear leg securing box, a rear movable leg telescopically received in the rear leg securing box, and a first stiffening beam. Wherein the rear leg fixing box is located below the sub frame 10. One end of the first reinforcing beam is welded to the rear leg fixing box, and the other end is welded to the sub-frame 10. The support rod 40 is installed between the subframe 10 and the rear leg fixing box. The connection between the rear leg assembly 30 and the subframe 10 is stable and reliable.

In some embodiments, the fire engine includes a front leg assembly 20, the front leg assembly 20 is mounted to the subframe 10 at an end of the third side member 13, a gap is provided between the front leg assembly 20 and the subframe 10, and an end of the frame passes through the gap between the front leg assembly 20 and the subframe 10. It will be appreciated that one end of the frame is located inboard of the rear leg assembly 30 and the other end passes through the gap between the front leg assembly 20 and the subframe 10. The front leg assembly 20 is located below the subframe 10. To reserve sufficient space above the fire engine subframe 10 for the loading of other components. In order to avoid the interference between the front leg assembly 20 and the vehicle frame, a gap is provided between the front leg assembly 20 and the subframe 10, so that the vehicle frame can pass through the gap and be connected with the subframe 10.

Further, the front leg assembly 20 is hingedly connected to the subframe 10. Specifically, the front leg assembly 20 includes a front leg fixing box, a front movable leg telescopically received in the front leg fixing box, and a second reinforcing beam. In the embodiment of the present application, the front leg fixing box is located below the subframe 10. One end of the second reinforcing beam is welded on the front supporting leg fixing box, and the other end is hinged on the auxiliary frame 10. To facilitate assembly of the frame to the subframe 10, the subframe 10 is mounted to the frame prior to mounting the front leg assembly 20, and the front leg assembly 20 is then connected to the subframe 10. The front leg assembly 20 is hinged to the subframe 10, that is, the second reinforcement beam is hinged to the subframe 10, and the connection mode avoids the interference of the frame on the installation of the front leg assembly 20, and the operation is simple and easy on the basis of ensuring the connection strength.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Moreover, the technical solutions of the present invention between the various embodiments can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are combined and contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a sub vehicle frame of fire engine which characterized in that includes:

the first longitudinal beams are arranged in pairs, and the two first longitudinal beams are arranged at intervals oppositely;

the second longitudinal beams are arranged in pairs, and the two second longitudinal beams are arranged at intervals oppositely;

the third longitudinal beams are arranged in pairs, and the two third longitudinal beams are arranged at intervals oppositely; the two second longitudinal beams and the two third longitudinal beams are respectively positioned on the inner sides of the two first longitudinal beams; and

the first end plate is arranged between the two first longitudinal beams, and two ends of the first end plate are respectively connected with the two first longitudinal beams; the second longitudinal beam and the third longitudinal beam are respectively arranged on two sides of the first end plate;

a lateral distance between the first stringer and the third stringer is greater than a lateral distance between the first stringer and the second stringer.

2. The fire engine subframe of claim 1 wherein said subframe comprises:

the second end plate is arranged between the two third longitudinal beams, and two ends of the second end plate are respectively connected with the two third longitudinal beams;

and the second end plate and the two third longitudinal beams form a reserved space at the end part of the auxiliary frame.

3. The fire engine subframe of claim 1 further comprising a plurality of bulkheads disposed between said first longitudinal beams at longitudinally spaced intervals along said subframe, wherein said bulkheads are mounted at opposite ends to said first longitudinal beams, and wherein said bulkheads are connected to said second longitudinal beams.

4. The fire engine subframe of claim 3 wherein the second longitudinal member comprises a plurality of sub-members, and the sub-members are respectively disposed between two adjacent bulkheads or between the bulkheads and the first end plate.

5. The fire engine subframe of claim 3 further comprising two cover plates disposed at an interval in opposite directions, wherein the two cover plates are respectively covered on the first longitudinal beams, and two side ends of the cover plates are respectively connected with the two first longitudinal beams disposed in opposite directions; the cover plate forms a gap between the two oppositely arranged third longitudinal beams;

the partition plate is provided with a containing hole, and a containing cavity is formed between the two cover plates, the two second longitudinal beams which are oppositely arranged and the first end plate.

6. The fire fighting truck is characterized by comprising a frame, a connecting assembly, a water pump assembly and the auxiliary frame according to any one of claims 1 to 5, wherein the auxiliary frame is arranged on the frame, the frame and the auxiliary frame are connected through the connecting assembly, and the water pump assembly is arranged at one end of the third longitudinal beam, which is positioned on the auxiliary frame.

7. The fire engine of claim 6, wherein the fire engine includes a rear leg assembly and a support rod, the rear leg assembly is mounted to the subframe at an end of the second longitudinal beam, and a gap is provided between the rear leg assembly and the subframe; the support rod is installed between the rear support leg assembly and the auxiliary frame.

8. The fire engine of claim 7, wherein the rear leg assembly is welded to the subframe, and one end of the frame is located inboard of the rear leg assembly.

9. The fire engine of claim 6, wherein the fire engine includes a front leg assembly mounted to the subframe at an end of the third rail, the front leg assembly having a gap with the subframe, and an end of the frame passing through the gap between the front leg assembly and the subframe.

10. The fire engine of claim 9, wherein the front leg assembly is hingedly connected to the subframe.