Novel wrecker auxiliary beam lifting mechanism

Abstract

The utility model discloses a novel wrecker auxiliary beam lifting mechanism, which relates to the technical field of wreckers, and comprises an auxiliary beam structure, a lifting structure is arranged at the front end of the auxiliary beam structure, and the lifting structure comprises an upper cross beam, a lower cross beam, two lifting oil cylinders and two connecting plates; the upper cross beam is installed at the bottom of the auxiliary beam structure through a fixing base, and the two ends of the upper cross beam extend out of the auxiliary beam structure and then are connected with the upper ends of the corresponding lifting oil cylinders through upper supports. The two ends of the lower cross beam extend out of the auxiliary beam structures and then are connected with the lower ends of the corresponding lifting oil cylinders through lower supports; the bottoms of the two connecting plates are connected with the parts, extending out of the auxiliary beam structure, of the two ends of the lower cross beam respectively, and a plurality of mounting holes used for connecting chassis girders are formed in the connecting plates in the height direction.

Description

Technical Field

[0001] The utility model relates to the technical field of tow trucks, in particular to a novel auxiliary beam lifting mechanism for tow trucks. Background Art

[0002] The existing auxiliary beam lifting mechanism of the tow truck has the following problems:

[0003] 1) The existing sub-beam lifting mechanism can only adapt to a chassis with one wheelbase. When the wheelbase changes, the sub-beam lifting mechanism must also be changed accordingly;

[0004] 2) The existing auxiliary beam lifting mechanism can only adapt to a chassis with a certain beam height. When the beam height changes, the auxiliary beam lifting mechanism must also be changed accordingly;

[0005] 3) After the lifting arm body extends to the supporting arm near the rear axle fulcrum, the chassis components will interfere with the supporting arm after exceeding the rear axle housing;

[0006] 4) The sub-beam lifting cylinder and the rear support are of fixed length, and the angle formed between them and the ground is a fixed value, which cannot achieve downhill rescue. Utility Model Content

[0007] In view of the defects existing in the prior art, the purpose of the utility model is to provide a new auxiliary beam lifting mechanism for a tow truck. The connecting plate plus the integral auxiliary beam lifting cylinder support not only meets the use strength, but also can meet the assembly requirements of chassis of different heights.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is: a new type of sub-beam lifting mechanism for a tow truck, including a sub-beam structure, a lifting structure is arranged at the front end of the sub-beam structure, and the lifting structure includes an upper crossbeam, a lower crossbeam, two lifting cylinders and two connecting plates; the upper crossbeam is installed at the bottom of the sub-beam structure through a fixed seat, and the two ends of the upper crossbeam extend out of the sub-beam structure and are connected to the corresponding upper ends of the lifting cylinders through upper supports; the two ends of the lower crossbeam extend out of the sub-beam structure and are connected to the corresponding lower ends of the lifting cylinders through lower supports; the bottoms of the two connecting plates are respectively connected to the parts of the two ends of the lower crossbeam extending out of the sub-beam structure, and a plurality of mounting holes for connecting the chassis beam are arranged on the connecting plates in the height direction.

[0009] A further improvement is that the installation distance and stroke of the lifting cylinder are greater than a predetermined installation distance and stroke.

[0010] Further improvements are: a lifting structure is provided at the rear end of the sub-beam structure, and the lifting structure includes a connecting shaft and a telescopic support arm; the two ends of the connecting shaft are respectively connected to the bottom of the sub-beam structure through a mounting seat; the front end of the telescopic support arm is hinged to the connecting shaft through a connecting arm, and the rear end of the telescopic support arm is connected to a cross arm.

[0011] A further improvement is that the rear end of the telescopic support arm extends out from the auxiliary beam structure.

[0012] A further improvement is that the telescopic supporting arm is inclined with a low front and a high rear, and the connecting arm is inclined with a high front and a low rear, and the telescopic supporting arm and the connecting arm form a V-shaped structure as a whole.

[0013] A further improvement is that a supporting structure is provided at the rear end of the auxiliary beam structure, and the supporting structure includes a supporting seat and adjustable legs.

[0014] A further improvement is that the support seat includes a vertical plate, a lower end of which is provided with a plurality of first connecting holes along the height direction, one end of the vertical plate is bent inward to form a first flange, and the other end of the vertical plate is bent inward to form a second flange, and the vertical plate, the first flange and the second flange form a chamber for accommodating the adjustable legs.

[0015] A further improvement is that the length of the second flange is greater than that of the first flange, and the lower side of the free end of the second flange is bent outward to form a reinforcement edge.

[0016] A further improvement is that a groove is provided on the upper side of the free end of the second flange.

[0017] Further improvements are: the adjustable leg includes a vertically arranged leg plate, the leg plate is provided with a plurality of second connecting holes matched with the first connecting holes along the height direction, and both sides of the leg plate are bent to form a reinforcing plate; a support plate is provided at the lower end of the leg plate, and the two ends of the support plate are warped upward to form a warped portion.

[0018] The beneficial effects of the utility model are:

[0019] 1. In the utility model, the connecting plate plus the integral sub-beam lifting cylinder support not only meets the use strength, but also can meet the assembly requirements of chassis of different heights.

[0020] 2. In the present invention, the installation distance and stroke of the oil cylinder are increased by one dimension compared with the predetermined installation distance and stroke, so that normal rescue can be achieved when the ground is inclined downhill.

[0021] 3. In the utility model, the support arm is designed to extend to the rear of the vehicle and the oil cylinder installation distance and stroke are sufficient to meet the assembly requirements of chassis with different wheelbases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the auxiliary beam lifting mechanism of the new type of tow truck in the embodiment of the utility model;

[0023] Figure 2 It is a top view of the auxiliary beam lifting mechanism of the new type of tow truck in the embodiment of the utility model;

[0024] Figure 3 This is a front view of the support seat in the embodiment of the utility model;

[0025] Figure 4 A side view of the support base in the embodiment of the utility model;

[0026] Figure 5 A top view of the support base in the embodiment of the utility model;

[0027] Figure 6 This is a front view of the adjustable legs in the embodiment of the utility model;

[0028] Figure 7 It is a top view of the adjustable legs in the embodiment of the utility model.

[0029] Reference numerals:

[0030] 1-Sub-beam structure;

[0031] 2-lifting structure; 21-upper beam; 22-fixed seat; 23-lifting cylinder; 24-upper support; 25-lower support; 26-lower beam; 27-connecting plate; 28-mounting hole;

[0032] 3-lifting structure; 31-telescopic support arm; 32-cross arm; 33-connecting arm; 34-connecting shaft; 35-mounting seat;

[0033] 4-support structure; 41-support seat; 411-vertical plate; 412-first connecting hole; 413-first flange; 414-second flange; 415-reinforcement edge; 416-groove; 42-adjustable leg; 421-leg plate; 422-second connecting hole; 423-reinforcement plate; 424-support plate; 425-lifting part. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0035] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0037] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, and cannot be understood as limiting the utility model.

[0038] See also Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a new type of auxiliary beam lifting mechanism for a tow truck, including an auxiliary beam structure 1, a lifting structure 2 is arranged at the front end of the auxiliary beam structure 1, and the lifting structure 2 includes an upper crossbeam 21, a lower crossbeam 26, two lifting cylinders 23 and two connecting plates 27; the upper crossbeam 21 is installed at the bottom of the auxiliary beam structure 1 through a fixing seat 22, and the two ends of the upper crossbeam 21 are connected to the corresponding upper ends of the lifting cylinders 23 through upper supports 24 after extending out of the auxiliary beam structure 1; the two ends of the lower crossbeam 26 are connected to the corresponding lower ends of the lifting cylinders 23 through lower supports 25 after extending out of the auxiliary beam structure 1; the bottoms of the two connecting plates 27 are respectively connected to the parts of the two ends of the lower crossbeam 26 extending out of the auxiliary beam structure 1, and a plurality of mounting holes 28 for connecting to the chassis beam are arranged on the connecting plate 27 along the height direction, and the height of the connecting plate and the chassis beam can be adjusted as needed when the connecting plate is installed. Specifically, the installation distance and stroke of the lifting oil cylinder 23 are greater than the predetermined installation distance and stroke. In this embodiment, the installation distance and stroke of the oil cylinder are increased by one dimension respectively compared with the predetermined installation distance and stroke, so that normal rescue can be achieved when the ground is inclined downhill. The double-sided connecting plate plus crossbeam type lifting oil cylinder support structure is adopted. Through the height adjustment of the connecting plate, the chassis beam height can be adjusted to different angles but the same angle with the ground.

[0039] See also Figure 1As shown, the rear end of the sub-beam structure 1 is provided with a lifting structure 3, and the lifting structure 3 includes a connecting shaft 34 and a telescopic supporting arm 31; the two ends of the connecting shaft 34 are respectively connected to the bottom of the sub-beam structure 1 through a mounting seat 35; the front end of the telescopic supporting arm 31 is hinged to the connecting shaft 34 through a connecting arm 33, and the rear end of the telescopic supporting arm 31 is connected to a cross arm 32. Specifically, the rear end of the telescopic supporting arm 31 extends from the sub-beam structure 1 to avoid interference with the components on the rear axle housing of the chassis. The telescopic supporting arm 31 is inclined with the front bottom and the rear high, and the connecting arm 33 is inclined with the front high and the rear bottom. The telescopic supporting arm 31 and the connecting arm 33 form a V-shaped structure as a whole, which can save the gap between the lifting system and the rear axle and realize the assembly of chassis with different wheelbases.

[0040] See also Figure 3 to Figure 7 As shown, the rear end of the sub-beam structure 1 is provided with a support structure 4, and the support structure 4 includes a support seat 41 and an adjustable leg 42. Specifically, the support seat 41 includes a vertical plate 411, and the lower end of the vertical plate 411 is provided with a plurality of first connection holes 412 along the height direction. One end of the vertical plate 411 is bent inward to form a first flange 413, and the other end of the vertical plate 411 is bent inward to form a second flange 414. The vertical plate 411, the first flange 413 and the second flange 414 form a chamber for accommodating the adjustable leg 42. The length of the second flange 414 is greater than that of the first flange 413, and the lower side of the free end of the second flange 414 is bent outward to form a reinforcing edge 415. A groove 416 is provided on the upper side of the free end of the second flange 414. The adjustable leg 42 includes a vertically arranged leg plate 421, and the leg plate 421 is provided with a plurality of second connection holes 422 matched with the first connection holes 412 along the height direction, and both sides of the leg plate 421 are bent to form a reinforcing plate 423; a support plate 424 is provided at the lower end of the leg plate 421, and both ends of the support plate 424 are upwardly tilted to form a tilted portion 425.

[0041] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A novel auxiliary beam lifting mechanism for a tow truck, comprising an auxiliary beam structure (1), characterized in that: A lifting structure (2) is provided at the front end of the auxiliary beam structure (1), and the lifting structure (2) comprises an upper crossbeam (21), a lower crossbeam (26), two lifting cylinders (23) and two connecting plates (27); The upper cross beam (21) is installed at the bottom of the auxiliary beam structure (1) through a fixing seat (22), and the two ends of the upper cross beam (21) extend out of the auxiliary beam structure (1) and are connected to the upper ends of the corresponding lifting cylinders (23) through upper supports (24); The two ends of the lower cross beam (26) extend out of the auxiliary beam structure (1) and are connected to the lower ends of the corresponding lifting cylinders (23) through the lower supports (25); The bottoms of the two connecting plates (27) are respectively connected to the parts of the two ends of the lower cross beam (26) extending out of the auxiliary beam structure (1), and a plurality of mounting holes (28) for connecting to the chassis beam are arranged on the connecting plates (27) along the height direction.

2. The novel auxiliary beam lifting mechanism for a tow truck according to claim 1 is characterized in that: The installation distance and stroke of the lifting oil cylinder (23) are greater than the predetermined installation distance and stroke.

3. The novel auxiliary beam lifting mechanism of the tow truck according to claim 1 is characterized in that: A lifting structure (3) is provided at the rear end of the sub-beam structure (1), and the lifting structure (3) comprises a connecting shaft (34) and a telescopic supporting arm (31); both ends of the connecting shaft (34) are respectively connected to the bottom of the sub-beam structure (1) via a mounting seat (35); the front end of the telescopic supporting arm (31) is hinged to the connecting shaft (34) via a connecting arm (33), and the rear end of the telescopic supporting arm (31) is connected to a cross arm (32).

4. The novel auxiliary beam lifting mechanism for a tow truck according to claim 3 is characterized in that: The rear end of the telescopic support arm (31) extends out from the auxiliary beam structure (1).

5. The novel auxiliary beam lifting mechanism for a tow truck according to claim 3 is characterized in that: The telescopic support arm (31) is arranged in an inclined manner with a lower front and a higher rear, and the connecting arm (33) is arranged in an inclined manner with a higher front and a lower rear. The telescopic support arm (31) and the connecting arm (33) form a V-shaped structure as a whole.

6. The novel auxiliary beam lifting mechanism for a tow truck according to claim 1 is characterized in that: A supporting structure (4) is provided at the rear end of the secondary beam structure (1), and the supporting structure (4) comprises a supporting seat (41) and adjustable legs (42).

7. The novel auxiliary beam lifting mechanism for a tow truck according to claim 6 is characterized in that: The support seat (41) includes a vertical plate (411), a plurality of first connection holes (412) are arranged at the lower end of the vertical plate (411) along the height direction, one end of the vertical plate (411) is bent inward to form a first flange (413), and the other end of the vertical plate (411) is bent inward to form a second flange (414), and the vertical plate (411), the first flange (413) and the second flange (414) form a chamber for accommodating the adjustable leg (42).

8. The novel auxiliary beam lifting mechanism for a tow truck according to claim 7 is characterized in that: The second flange (414) is longer than the first flange (413), and the lower side of the free end of the second flange (414) is bent outward to form a reinforcement edge (415).

9. The novel auxiliary beam lifting mechanism for a tow truck according to claim 7 is characterized in that: A groove (416) is provided on the upper side of the free end of the second flange (414).

10. The novel auxiliary beam lifting mechanism for a tow truck according to claim 6 is characterized in that: The adjustable leg (42) comprises a vertically arranged leg plate (421), wherein the leg plate (421) is provided with a plurality of second connection holes (422) matched with the first connection holes (412) along the height direction, and both sides of the leg plate (421) are bent to form a reinforcing plate (423); a support plate (424) is provided at the lower end of the leg plate (421), and both ends of the support plate (424) are upwardly tilted to form a tilting portion (425).

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