A lifting special vehicle sub-frame structure

Abstract

The utility model discloses a lifting type special vehicle auxiliary frame structure, including two parallel opposite auxiliary frame longitudinal beams, every said auxiliary frame longitudinal beam includes integral type connection's first horizontal portion, first vertical portion, second horizontal portion, second vertical portion and flanging portion in proper order, and first horizontal portion and second horizontal portion are in parallel opposite setting up to top and bottom, and first vertical portion and second vertical portion are in parallel opposite setting up to left and right, and flanging portion is located on second vertical portion upper end, and turns outward. The utility model has the advantages of: can play the limiting effect to the compartment floor longitudinal beam, guarantees that the vehicle is more stable, safe in the process of driving under the cargo carrying state, and simple processing, and the production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of lifting-type special technology, specifically to a subframe structure for a lifting-type special vehicle. Background Technology

[0002] The existing subframes for lifting-type special vehicles mainly fall into the following two categories:

[0003] Firstly, it consists of two parallel rectangular longitudinal beams 101' and several H-shaped transverse beams 102' positioned between the two parallel rectangular longitudinal beams 101', such as... Figure 1 As shown. In practical applications, this type of subframe structure usually has the problem of insufficient limiting, that is, when it is assembled with the longitudinal beam of the cargo box floor of a lifting special vehicle, its subframe longitudinal beam (i.e., rectangular tube longitudinal beam) cannot play a lateral limiting role on the longitudinal beam of the cargo box floor.

[0004] Secondly, it consists of two parallel and opposite longitudinal sleeve beams 201' and several H-beams 202' arranged between the two parallel and opposite longitudinal sleeve beams 201', such as... Figure 2 As shown. In practical applications, this type of subframe structure has the problems of complicated processing and high cost. Specifically, its subframe longitudinal beam (i.e., sleeve longitudinal beam) is made by welding two bent parts together, which is relatively complicated to process and has high production costs. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting-type subframe structure for special vehicles to solve the technical problems existing in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A subframe structure for a lifting-type special vehicle includes two parallel and opposite subframe longitudinal beams. Each subframe longitudinal beam includes a first horizontal part, a first vertical part, a second horizontal part, a second vertical part, and a flange part that are integrally connected in sequence. The first horizontal part and the second horizontal part are arranged vertically and horizontally, and the first vertical part and the second vertical part are arranged horizontally and horizontally. The flange part is located at the upper end of the second vertical part and is turned outward.

[0008] Furthermore, it also includes several parallel subframe crossbeams spaced apart between the two parallel and opposite subframe longitudinal beams, a lifting cylinder bracket located at the upper front end of the two parallel and opposite subframe longitudinal beams for mounting the lifting cylinder of the lifting vehicle, and a vehicle tilting shaft passing through the rear end of the two parallel and opposite subframe longitudinal beams for hinged connection with the vehicle body of the lifting vehicle.

[0009] Furthermore, it also includes a balance tube disposed at the front end of the two parallel and opposite subframe longitudinal beams and passing through the two parallel and opposite subframe longitudinal beams, with a balance tube bracket provided at the top of both ends of the balance tube.

[0010] Furthermore, a set of side protection fixing seats is provided on the outer side of each of the aforementioned subframe longitudinal beams.

[0011] Furthermore, a safety strut bracket, a safety strut pin, and a safety strut baffle are provided on the outer side of each of the aforementioned subframe longitudinal beams.

[0012] Furthermore, several pairs of U-bolt seats are provided on the left and right sides of each of the subframe longitudinal beams, and each pair of U-bolt seats is used to connect to the chassis longitudinal beam of the lifting special vehicle through a U-bolt.

[0013] Furthermore, a rear end plate is provided at the tail end of each of the aforementioned subframe longitudinal beams.

[0014] Furthermore, a side sealing plate is provided at the tail end of each of the subframe longitudinal beams, and an upper sealing plate is provided on the top of each side sealing plate. One end of the carriage tilting shaft is correspondingly inserted inside each side sealing plate.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] (1) Compared with the existing subframe that uses rectangular tubes as the longitudinal beams of the subframe, the subframe provided by this utility model can limit the longitudinal beams of the car floor, prevent the longitudinal beams of the car floor from moving left and right, and thus ensure that the vehicle is more stable and safer when it is loaded.

[0017] (2) Compared with the existing subframes that use sleeves as longitudinal beams, the subframe provided by this utility model is simple to process and has low manufacturing cost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an assembly diagram of the existing rectangular tube type lifting special vehicle subframe and the longitudinal beam of the cargo box floor;

[0020] Figure 2 This is an assembly diagram of the existing sleeve-type lifting special vehicle subframe and the longitudinal beam of the cargo box floor;

[0021] Figure 3 This is a three-dimensional structural diagram of a specific embodiment of the lifting-type special vehicle subframe structure provided by this utility model;

[0022] Figure 4 This is a top view schematic diagram of a specific embodiment of the lifting-type special vehicle subframe structure provided by this utility model;

[0023] Figure 5 yes Figure 4 Schematic diagram of the AA section;

[0024] Figure 6 This is a three-dimensional structural diagram of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the chassis provided by this utility model;

[0025] Figure 7 This is a top view schematic diagram of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the chassis provided by this utility model;

[0026] Figure 8 yes Figure 7 Schematic diagram of the BB cross section;

[0027] Figure 9 This is a three-dimensional structural diagram of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the floor of the vehicle body provided by this utility model;

[0028] Figure 10 This is a side view of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the floor of the vehicle body provided by this utility model;

[0029] Figure 11 yes Figure 10 Schematic diagram of the CC section;

[0030] Figure 12 This is a three-dimensional structural diagram of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the floor plate and chassis of the vehicle body provided by this utility model.

[0031] Figure 13 This is a side view of a specific embodiment of the connection between the subframe structure of the lifting special vehicle and the floor and chassis of the vehicle body provided by this utility model;

[0032] Figure 14 yes Figure 13 Schematic diagram of the DD section;

[0033] Figure 15 This is a schematic diagram of the longitudinal beam section of the subframe of the lifting-type special vehicle subframe structure provided by this utility model;

[0034] Figure 16 yes Figure 11Enlarged view at point M;

[0035] Explanation of reference numerals in the attached drawings: 100, Subframe; 101, Subframe longitudinal beam; 101a, First horizontal section; 101b, First vertical section; 101c, Second horizontal section; 101d, Second vertical section; 101e, Flanged section; 102, Subframe crossbeam; 103, Lifting cylinder bracket; 104, Cargo box tilting shaft; 105, Balance tube; 106, Balance tube bracket; 107, Side guard fixing seat; 108, Safety strut bracket; 109, Safety strut pin; 110, Safety strut baffle; 111, U-bolt seat; 112, Rear end plate; 113, Side end plate; 114, Top end plate; 200, Cargo box; 201, Cargo box floor longitudinal beam; 300, Cargo box lifting cylinder; 400, U-bolt; 500, Chassis; 501, Chassis longitudinal beam. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the appearance of the term "horizontal" does not mean that the component is required to be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0039] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The present invention will be further described below with reference to the accompanying drawings:

[0041] See Figures 3 to 16 The illustration shows a specific embodiment of a lifting-type special vehicle subframe structure provided by this utility model, including two parallel and opposite subframe longitudinal beams 101. Each subframe longitudinal beam 101 includes a first horizontal part 101a, a first vertical part 101b, a second horizontal part 101c, a second vertical part 101d, and a flanged part 101e connected in sequence. The first horizontal part 101a and the second horizontal part 101c are arranged vertically and horizontally opposite each other, and the first vertical part 101b and the second vertical part 101d are arranged horizontally and horizontally opposite each other. The flanged part 101e is located at the upper end of the second vertical part 101d and is turned outward. The flanged part 101e can limit the longitudinal beam 201 of the vehicle floor when the subframe structure 100 provided by this utility model is closed, and can prevent the longitudinal beam 201 of the vehicle floor from moving left and right.

[0042] Specifically, see Figure 3 , Figure 10 , Figure 13 In the illustrated embodiment, the subframe structure of the lifting special vehicle provided by this utility model further includes several subframe crossbeams 102 that are parallel and spaced apart between two parallel and opposite subframe longitudinal beams 101, a lifting cylinder bracket 103 that is disposed at the upper front end of the two parallel and opposite subframe longitudinal beams 101 and is used to install the lifting cylinder 300 of the lifting special vehicle, and a cargo box tilting shaft 104 that passes through the rear end of the two parallel and opposite subframe longitudinal beams 101 and is used to hinge with the cargo box 200 of the lifting special vehicle.

[0043] Specifically, see Figure 3In some specific embodiments, the lifting-type special vehicle subframe structure provided by this utility model further includes a balance tube 105 disposed at the front end of two parallel and opposite subframe longitudinal beams 101 and passing through the two parallel and opposite subframe longitudinal beams 101. Balance tube brackets 106 are provided at the top of both ends of the balance tube 105. The balance tube 105 provides support to the balance tube brackets 106 when the vehicle body sways while passing through sections of road with poor conditions, and can also replace the function of a crossbeam. The balance tube brackets 106 provide support to the vehicle body when the vehicle body sways while passing through sections of road with poor conditions.

[0044] Specifically, see Figure 3 In some specific embodiments, a set of side protection fixing seats 107 is provided on the outer side of each subframe longitudinal beam 101. Each set of side protection fixing seats 107 is used to connect with a chassis side protection (not shown in the figure) provided on the same side. Since the chassis side protection is prior art and is not within the protection scope of this utility model, it will not be described in detail.

[0045] Specifically, see Figure 3 In some specific embodiments, a safety strut bracket 108, a safety strut pin 109, and a safety strut baffle 110 are provided on the outer side of each subframe longitudinal beam 101. The safety strut bracket 108 is used to place the safety strut when it is not in use. The safety strut pin 109 is used to allow the safety strut to rotate and change its state, and also serves to support the safety strut. The safety strut baffle 110 is used to limit the working angle of the safety strut and make the safety strut work stably.

[0046] Specifically, see Figure 3 , Figure 6 , Figure 8 In some specific embodiments, several pairs of U-bolt seats 111 are provided on both the left and right sides of each subframe longitudinal beam 101, and each pair of U-bolt seats 108 is used to connect to the chassis 500 of the lifting vehicle via a U-bolt 400. Further, each pair of U-bolt seats 108 is connected to the chassis longitudinal beam 501 of the lifting vehicle via a U-bolt 400 (i.e., a U-shaped double-ended bolt).

[0047] Specifically, see Figure 3 In some specific embodiments, a rear end plate 112 is provided at the tail end of each subframe longitudinal beam 101. The rear end plate 112 is used to strengthen the strength of the carriage tilting shaft 104 and also serves an aesthetic purpose.

[0048] Specifically, see Figure 3In some specific embodiments, a side sealing plate 113 is provided at the tail end of each subframe longitudinal beam 101, and an upper sealing plate 114 is provided on top of each side sealing plate 113. One end of the carriage tilting shaft 104 is inserted through the interior of each side sealing plate 113. Both the side sealing plate 113 and the upper sealing plate 114 are used to strengthen the carriage tilting shaft 104 and also serve an aesthetic purpose.

[0049] The lifting-type subframe structure for special-purpose vehicles provided by this utility model has the following advantages:

[0050] (1) Compared with the existing subframes that use rectangular tubes as the longitudinal beams of the subframe, the subframe 100 provided by this utility model uses a Q-shaped integrated tube for its longitudinal beam 101. When closed with the floor of the carriage, refer to Figure 16 It can limit the longitudinal beam 201 of the cargo box floor, prevent the longitudinal beam 201 of the cargo box floor from moving left and right, and ensure that the vehicle is more stable and safer when it is loaded.

[0051] (2) Compared with the existing subframes that use sleeves as subframe longitudinal beams, the subframe 100 provided by this utility model has a subframe longitudinal beam 101 that uses an integrated tube with a Q-shaped shape, which is simple to process and has low cost.

[0052] Finally, it should be noted that the above description is only an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A subframe structure for a lifting-type special vehicle, comprising two parallel and opposite subframe longitudinal beams (101), characterized in that: Each of the subframe longitudinal beams (101) includes a first horizontal section (101a), a first vertical section (101b), a second horizontal section (101c), a second vertical section (101d), and a flanged section (101e) that are integrally connected in sequence. The first horizontal section (101a) and the second horizontal section (101c) are arranged vertically parallel to each other, the first vertical section (101b) and the second vertical section (101d) are arranged horizontally parallel to each other, and the flanged section (101e) is located at the upper end of the second vertical section (101d) and is turned outward.

2. The lifting-type special vehicle subframe structure according to claim 1, characterized in that: It also includes several parallel subframe crossbeams (102) spaced between the two parallel opposing subframe longitudinal beams (101), a lifting cylinder bracket (103) located at the upper front end of the two parallel opposing subframe longitudinal beams (101) and used to install the lifting cylinder (300) of the lifting special vehicle, and a car body tilting shaft (104) passing through the rear end of the two parallel opposing subframe longitudinal beams (101) and used to hinge with the car body (200) of the lifting special vehicle.

3. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: It also includes a balance tube (105) disposed at the front end of the two parallel and opposite subframe longitudinal beams (101) and passing through the two parallel and opposite subframe longitudinal beams (101), and a balance tube bracket (106) is provided at the top of both ends of the balance tube (105).

4. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: A set of side protection fixing seats (107) is provided on the outside of each of the aforementioned subframe longitudinal beams (101).

5. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: On the outside of each of the subframe longitudinal beams (101), there is a safety strut bracket (108), a safety strut pin (109) and a safety strut baffle (110).

6. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: Several pairs of U-bolt seats (111) are provided on the left and right sides of each of the subframe longitudinal beams (101), and each pair of U-bolt seats (111) is used to connect to the chassis (500) of the lifting special vehicle through a U-bolt (400).

7. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: A rear end plate (112) is provided at the end of each of the aforementioned subframe longitudinal beams (101).

8. The lifting-type special vehicle subframe structure according to claim 2, characterized in that: A side sealing plate (113) is provided at the end of each of the subframe longitudinal beams (101), and an upper sealing plate (114) is provided on the top of each side sealing plate (113). One end of the carriage tilting shaft (104) is correspondingly inserted inside each side sealing plate (113).

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