Special-shaped steel pipe and engineering machinery cab

Abstract

The utility model discloses a special-shaped steel pipe and an engineering machinery cab. The section of the special-shaped steel pipe is of a closed structure formed by a plurality of line segments. A first step is arranged on the side, close to cab glass, in the closed structure, the opening direction of the first step faces the front windshield, and the step face of the first step is used for containing the cab glass. A second step is arranged on the side, close to the cab door, of the closed structure and used for assisting installation of the cab door; the opening direction of the first step is opposite to the opening direction of the second step. Due to the fact that the special-shaped steel pipe is a closed sectional material formed through cold bending, compared with a structure formed through welding, the special-shaped steel pipe has higher mechanical structural strength, meanwhile, the first step and the second step are arranged in the closed structure formed by the section of the special-shaped steel pipe, installation of cab glass and auxiliary installation of a vehicle door can be achieved, and meanwhile the service life of the vehicle door is prolonged. And a bearing plate for mounting the glass does not need to be welded, so that the overall safety is improved, and the manufacturing process is simplified.

Description

Technical Field

[0001] The utility model relates to the field of engineering machinery, in particular to a special-shaped steel pipe and an engineering machinery cab. Background Art

[0002] Special-shaped steel has the advantages of saving energy, saving metal materials, convenient construction, and beautiful appearance. It can also meet the safety requirements of the cab. In recent years, it has been used more to replace angle steel, channel steel, I-beam and round pipe, and is widely used in the cab of engineering machinery. However, the existing left and right side assemblies of the cab still adopt the method of welding a support plate on the side of the special-shaped steel close to the windshield to achieve the positioning and installation of the windshield. However, under this setting method, because the support plate and the special-shaped steel are welded and fixed, there is a risk of the support plate falling off or being greatly deformed when the engineering machinery rolls over, which may cause harm to the driver and other devices in the engineering machinery. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a special-shaped steel pipe to solve the problem that the existing left side and right side enclosure assemblies of the cab are prone to deformation or damage.

[0004] The utility model also provides an engineering machinery cab.

[0005] The special-shaped steel tube according to the embodiment of the first aspect of the utility model is applied to the left side enclosure assembly and / or the right side enclosure assembly of the engineering machinery cab, and the cross-section of the special-shaped steel tube is a closed structure composed of multiple line segments; a first step is arranged on the side close to the cab glass in the closed structure, the opening direction of the first step is toward the windshield, and the step surface of the first step is used to place the cab glass; a second step is arranged on the side close to the cab door of the closed structure, and the second step is used to assist in the installation of the cab door; the opening direction of the first step and the opening direction of the second step are opposite to each other.

[0006] The special-shaped steel pipe according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The embodiment of the utility model adopts special-shaped steel pipes to construct the left side enclosure assembly and the right side enclosure assembly of the engineering machinery cab. Since the special-shaped steel pipes are closed profiles formed by cold bending, they have higher mechanical structural strength compared to the welded structure. At the same time, by arranging the first step and the second step in the closed structure formed by the cross-section of the special-shaped steel pipe, the installation of the cab glass and the auxiliary installation of the vehicle door can be realized. At the same time, there is no need to weld the supporting plate for installing the glass, which improves the overall safety and simplifies the manufacturing process.

[0008] According to some embodiments of the utility model, the closed structure includes a first straight line segment, a second straight line segment, a third straight line segment, a transition line segment, a fourth straight line segment, a fifth straight line segment and a sixth straight line segment which are connected end to end in sequence, the second straight line segment and the third straight line segment constitute the first step, and the fourth straight line segment and the fifth straight line segment constitute the second step.

[0009] According to some embodiments of the utility model, the closed structure includes a first straight line segment, a second straight line segment, a third straight line segment, a transition line segment, a fourth straight line segment, a fifth straight line segment and a sixth straight line segment which are connected end to end in sequence, the second straight line segment and the third straight line segment constitute the first step, and the fourth straight line segment and the fifth straight line segment constitute the second step.

[0010] According to some embodiments of the present invention, the first straight line segment is perpendicular to the second straight line segment.

[0011] According to some embodiments of the present invention, the fourth straight line segment and the fifth straight line segment are vertically arranged.

[0012] According to some embodiments of the present invention, the first straight line segment and the sixth straight line segment are vertically arranged, and / or the fifth straight line segment and the sixth straight line segment are vertically arranged.

[0013] According to some embodiments of the present invention, the second straight line segment and the third straight line segment are vertically arranged.

[0014] According to some embodiments of the present invention, the transition line segment is an arc segment, and the opening of the arc segment faces a direction close to the closed structure.

[0015] According to some embodiments of the present invention, the connection between the first straight line segment, the second straight line segment, the third straight line segment, the transition line segment, the fourth straight line segment, the fifth straight line segment and the sixth straight line segment is configured to be in an arc shape.

[0016] According to some embodiments of the utility model, there is an installation space for installing a first shock-absorbing sealing installation structure between the first step and the cab glass, and / or there is an installation space for installing a second shock-absorbing sealing installation structure between the second step and the door of the cab.

[0017] According to the second embodiment of the utility model, the left side and right side assemblies of the engineering machinery cab both include the above-mentioned special-shaped steel pipes. The engineering machinery cab in the utility model embodiment includes the special-shaped steel pipes as described in the first embodiment, and thus has all the beneficial effects of the special-shaped steel pipes as described in the first embodiment.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 The figure is a schematic diagram of the cross-sectional structure of a special-shaped steel pipe according to an embodiment of the utility model.

[0021] Figure Number:

[0022] A first straight line segment 100 , a second straight line segment 200 , a third straight line segment 300 , a fourth straight line segment 400 , a fifth straight line segment 500 , a sixth straight line segment 600 , and a transition line segment 700 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] refer to Figure 1The utility model proposes a special-shaped steel pipe, which is applied to the left side enclosure assembly and / or the right side enclosure assembly of the engineering machinery cab. The cross-section of the special-shaped steel pipe is a closed structure composed of multiple line segments; a first step is arranged on the side close to the cab glass in the closed structure, the opening direction of the first step faces the windshield, and the step surface of the first step is used to place the cab glass; a second step is arranged on the side close to the cab door of the closed structure, and the second step is used to assist in installing the cab door; the opening direction of the first step and the opening direction of the second step are opposite to each other.

[0028] The embodiment of the utility model uses a special-shaped steel pipe to construct the left and right side enclosure assemblies of the engineering machinery cab. Because the special-shaped steel pipe is a closed profile formed by cold bending (i.e., bent in a cold state), it has higher mechanical structural strength than structures formed by hot forming such as welding. In addition, the cross-section of the special-shaped steel pipe of this embodiment is a closed structure composed of multiple line segments, i.e., a hollow tube structure, which can ensure the overall structural strength while reducing the overall weight of the left and right side enclosure assemblies. At the same time, a first step and a second step are constructed in the closed structure formed by the cross-section of the special-shaped steel pipe, referring to Figure 1 , Figure 1 The upper left corner is the first step, and the step surface of the first step can play a supporting and positioning role, so that the cab glass (such as the front windshield, roof glass, rear window glass) can be positioned and installed, so that before installing the cab glass, it is no longer necessary to weld a supporting plate for installing the glass, thereby improving the overall safety and simplifying the manufacturing process; Figure 1 The lower right corner is set as the second step, and the second step can be used to complete the installation of the cab door. It should be noted that the first step and the second step are to provide step surfaces for the installation of the cab glass and the door, so the opening direction will inevitably deviate from the center of the closed structure. At the same time, because the cab glass and the door are usually installed vertically, the first step and the second step will also be set at both ends of the diagonal of the closed structure as much as possible.

[0029] refer to Figure 1 In some embodiments, the closed structure includes a first straight segment 100, a second straight segment 200, a third straight segment 300, a transition segment 700, a fourth straight segment 400, a fifth straight segment 500 and a sixth straight segment 600 connected end to end in sequence, the second straight segment 200 and the third straight segment 300 form a first step, and the fourth straight segment 400 and the fifth straight segment 500 form a second step. By using a plurality of straight segments and a transition segment 700 to form a closed structure, a large number of straight segments are introduced, which can effectively improve the overall strength of the special-shaped steel pipe.

[0030] refer to Figure 1In some embodiments, the first straight segment 100 is vertically arranged with the second straight segment 200. In the vertical arrangement, the step surface of the first step formed by the second straight segment 200 is smoother, which is convenient for the positioning and installation of the cab glass in the later stage, and in the vertical installation mode, the first straight segment 100 also provides a higher support strength.

[0031] refer to Figure 1 In some embodiments, the fourth straight segment 400 and the fifth straight segment 500 are vertically arranged. In the vertical arrangement, the step surface of the second step formed by the fourth straight segment 400 and the fifth straight segment 500 can be more convenient for the installation of the vehicle door.

[0032] refer to Figure 1 In some embodiments, the first straight segment 100 and the sixth straight segment 600 are arranged vertically, and / or the fifth straight segment 500 and the sixth straight segment 600 are arranged vertically. After the first straight segment 100 and the sixth straight segment 600 are arranged vertically, and the fifth straight segment 500 and the sixth straight segment 600 are arranged vertically, the first step and the second step can be located at two opposite diagonals, which can better realize the positioning and installation of the cab glass and the door, and at the same time, the structural strength of the entire special-shaped steel pipe can be ensured.

[0033] refer to Figure 1 In some embodiments, the second straight segment 200 and the third straight segment 300 are vertically arranged. In the vertical arrangement, the first step formed by the second straight segment 200 and the third straight segment 300 will be more standard, which can better improve the installation and positioning, and further ensure the overall strength of the special-shaped steel pipe.

[0034] refer to Figure 1 In some embodiments, the transition line segment 700 is an arc segment, and the arc segment opening is oriented toward a direction close to the closed structure. In actual scenarios, the transition line segment 700 is located on both sides of the vehicle body. The use of the arc segment structure can effectively reduce wind resistance and provide sufficient structural strength.

[0035] refer to Figure 1 In some embodiments, the connection between the first straight line segment 100, the second straight line segment 200, the third straight line segment 300, the transition line segment 700, the fourth straight line segment 400, the fifth straight line segment 500 and the sixth straight line segment 600 is set to be an arc. Setting an arc transition can reduce the difficulty of bending when manufacturing a special-shaped steel pipe, and is safer than a right-angle protruding structure. In some embodiments, the fillet radius of the arc-shaped structure at the connection is 6 mm, which can meet the use requirements in most scenarios.

[0036] In some embodiments, there is an installation space between the first step and the cab glass for installing a first shock-absorbing seal installation structure, and / or there is an installation space between the second step and the cab door for installing a second shock-absorbing seal installation structure. Figure 1 The first shock-absorbing and sealing installation structure can effectively prevent the glass from breaking. The first step is used to prevent the glass from breaking. Sponge or rubber can be set on the step surface for shock absorption. The right side of the first step can be filled with sponge or rubber, and glass glue can be used to seal the glass after the glass is installed. Figure 1 The second shock-absorbing and sealing installation structure can assist the vehicle door in shock absorption and sealing. Sealing strips need to be provided on both sides of the second step opening, and the sealing strips can be used to ensure the sealing of the vehicle door after installation.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A special-shaped steel pipe, characterized in that: Applicable to the left side enclosure assembly and / or right side enclosure assembly of an engineering machinery cab, the cross-section of the special-shaped steel pipe is a closed structure composed of multiple line segments; a first step is arranged on the side close to the cab glass in the closed structure, the opening direction of the first step faces the windshield, and the step surface of the first step is used to place the cab glass; a second step is arranged on the side close to the cab door of the closed structure, and the second step is used to assist in the installation of the cab door; the opening direction of the first step and the opening direction of the second step are opposite to each other.

2. The special-shaped steel pipe according to claim 1, characterized in that: The closed structure includes a first straight line segment, a second straight line segment, a third straight line segment, a transition line segment, a fourth straight line segment, a fifth straight line segment and a sixth straight line segment which are connected end to end in sequence, the second straight line segment and the third straight line segment constitute the first step, and the fourth straight line segment and the fifth straight line segment constitute the second step.

3. The special-shaped steel pipe according to claim 2, characterized in that: The first straight line segment is arranged perpendicular to the second straight line segment.

4. The special-shaped steel pipe according to claim 2 or 3, characterized in that: The fourth straight line segment and the fifth straight line segment are arranged perpendicularly.

5. The special-shaped steel pipe according to claim 4, characterized in that: The first straight line segment and the sixth straight line segment are arranged perpendicularly, and / or the fifth straight line segment and the sixth straight line segment are arranged perpendicularly.

6. The special-shaped steel pipe according to claim 5, characterized in that: The second straight line segment and the third straight line segment are arranged perpendicularly.

7. The special-shaped steel pipe according to claim 2, characterized in that: The transition line segment is an arc segment, and the opening of the arc segment faces a direction close to the closed structure.

8. The special-shaped steel pipe according to claim 2, characterized in that: The connection between the first straight line segment, the second straight line segment, the third straight line segment, the transition line segment, the fourth straight line segment, the fifth straight line segment and the sixth straight line segment is configured as an arc shape.

9. The special-shaped steel pipe according to claim 1, characterized in that: An installation space for installing a first shock-absorbing seal installation structure is provided between the first step and the cab glass, and / or an installation space for installing a second shock-absorbing seal installation structure is provided between the second step and the door of the cab.

10. A cab for an engineering machinery, characterized in that: The left side enclosure assembly and the right side enclosure assembly of the engineering machinery cab both include the special-shaped steel pipe as described in any one of claims 1 to 9.

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