Tooling safety cab rear stand column profiled bar
By designing an irregularly shaped cross-section steel pipe structure, the problem of improper installation of sealing strips in the cab of engineering vehicles was solved, the sealing performance was improved, and the sealing and safety of the cab were ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东宏力异型钢管有限公司
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-14
AI Technical Summary
The installation position of the sealing strips on the existing engineering vehicle cab frame is limited, resulting in poor sealing performance and easy detachment, which leads to air leakage in the cab.
The design employs an irregularly shaped cross-section steel pipe structure, which includes multiple arc-shaped and straight components connected to form a ring structure, thus optimizing the installation conditions of the sealing strip.
It significantly improves the sealing performance of the cab, prevents the sealing strips from falling off, and ensures the sealing and safety of the cab.
Smart Images

Figure CN224117375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irregular pipe technology, specifically to an irregular profile of the rear column of a tooling safety cab. Background Technology
[0002] Current regulations require that the cab frame of engineering vehicles have sufficient strength and rigidity to prevent overall destruction and excessive deformation in the event of a rollover accident, thereby ensuring the safety of the driver. The cab frame of a loader is welded from tubing of various specifications. To improve the load-bearing capacity of the cab frame and prevent excessive deformation, the tubing used must have sufficient bending resistance.
[0003] In existing technologies, pipes typically use relatively regular cross-sections, which, while simple in structure, can ensure sufficient strength. However, when these regular profiles are used with sealing strips, the installation position of the sealing strips is restricted, the sealing strips are prone to falling off, and the sealing performance is poor, leading to air leakage in the cab. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a special-shaped rear column profile for a tooling safety cab, specifically achieved through the following technical solution:
[0005] A special-shaped rear column profile for a tooling safety cab, wherein the cross-section of the special-shaped rear column profile includes a first vertical portion, and the first end of the first vertical portion is sequentially and fixedly connected to the first ends of a first arc portion, a first straight portion, a second arc portion, a first inclined portion, a third arc portion, a second inclined portion, a fourth arc portion, a second vertical portion, a fifth arc portion, a third straight portion, a sixth arc portion, a third vertical portion, a seventh arc portion, a fourth straight portion, and an eighth arc portion, wherein the second end of the eighth arc portion is fixedly connected to the first end of the first vertical portion.
[0006] The first arc portion bends 90 degrees clockwise from the first vertical portion to the first horizontal portion, and the inner radius of the first arc portion is 10mm.
[0007] The second arc portion bends from the first straight portion in a clockwise direction along the first inclined portion, with a central angle of 122.12 degrees and an inner radius of 10 mm.
[0008] The third arc portion bends clockwise from the first inclined portion to the second inclined portion, with a central angle of 102.88 degrees and an inner radius of 6 mm.
[0009] The fourth arc portion bends counterclockwise from the second inclined portion to the second vertical portion, with a central angle of 135 degrees and an inner radius of 5 mm.
[0010] The fifth arc portion bends 90 degrees clockwise from the second vertical portion to the third straight portion, and the inner radius of the fifth arc portion is 6mm.
[0011] The six circular arc portions bend 90 degrees clockwise from the third straight portion to the third vertical portion, and the inner radius of the six circular arc portions is 6mm.
[0012] The seventh arc portion bends 90 degrees clockwise from the third vertical portion to the fourth horizontal portion, and the inner radius of the seventh arc portion is 5mm.
[0013] The eighth arc portion bends 90 degrees clockwise from the fourth straight portion to the first vertical portion, and the inner radius of the eighth arc portion is 6mm.
[0014] The technical solution of this utility model has the following advantages:
[0015] The traditional steel tube structure with a square or circular cross-section has been improved by using steel tubes with an irregular cross-section. Due to its unique cross-sectional shape, this irregularly shaped door frame profile provides optimized installation conditions for the sealing strip, thereby significantly improving the overall sealing performance of the cab. This structural improvement effectively solves the compatibility problem that exists in the assembly of sealing strips with traditional door frame profiles. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] In the diagram, 1-first vertical section, 2-first arc section, 3-first straight section, 4-second arc section, 5-first inclined section, 6-third arc section, 7-second inclined section, 8-fourth arc section, 9-second vertical section, 10-fifth arc section, 11-third straight section, 12-sixth arc section, 13-third vertical section, 14-seventh arc section, 15-fourth straight section, 16-eighth arc section. Detailed Implementation
[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.
[0022] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0023] The inner edge of this utility model is the side closest to the center of the corresponding arc portion.
[0024] This utility model provides a special-shaped profile for the rear column of a tooling safety cab, the cross-section of which is shown in the attached figure. Figure 1 As shown, it is an irregular ring shape, including a first vertical part 1. The first end of the first vertical part 1 is fixedly connected in sequence to the first ends of the first arc part 2, the first straight part 3, the second arc part 4, the first inclined part 5, the third arc part 6, the second inclined part 7, the fourth arc part 8, the second vertical part 9, the fifth arc part 10, the third straight part 11, the sixth arc part 12, the third vertical part 13, the seventh arc part 14, the fourth straight part 15, and the eighth arc part 16. The second end of the eighth arc part 16 is fixedly connected to the first end of the first vertical part 1, forming a ring structure.
[0025] The first arc portion 2 bends 90 degrees clockwise from the first vertical portion 1 to the first horizontal portion 3, and the inner radius of the first arc portion 2 is 10mm.
[0026] The second arc portion 4 bends from the first straight portion 3 in a clockwise direction along the first inclined portion 5, with a central angle of 122.12 degrees and an inner radius of 10 mm.
[0027] The third arc portion 6 bends clockwise from the first inclined portion 5 to the second inclined portion 7, with a central angle of 102.88 degrees and an inner radius of 6 mm.
[0028] The fourth arc portion 8 bends counterclockwise from the second inclined portion 7 to the second vertical portion 9, with a central angle of 135 degrees and an inner radius of 5 mm.
[0029] The fifth arc portion 10 bends 90 degrees clockwise from the second vertical portion 9 to the third straight portion 11, and the inner radius of the fifth arc portion 10 is 6mm.
[0030] The six-circular arc portion 12 bends 90 degrees clockwise from the third straight portion 11 to the third vertical portion 13, and the inner radius of the six-circular arc portion 12 is 6mm.
[0031] The seventh arc portion 14 bends 90 degrees clockwise from the third vertical portion 13 to the fourth horizontal portion 15, and the inner radius of the seventh arc portion 14 is 5mm.
[0032] The eighth arc portion 16 bends 90 degrees clockwise from the fourth straight portion 15 toward the first vertical portion 1, and the inner radius of the eighth arc portion 16 is 6mm.
[0033] The horizontal distance from the outer wall of the seventh arc portion 14 to the middle of the second arc portion 4 is 85mm.
[0034] The vertical distance from the outer wall of the third straight section 11 to the outer wall of the first straight section 3 is 80mm.
[0035] The vertical distance from the outer wall of the fourth straight section 15 to the outer wall of the third straight section 11 is 28mm.
[0036] The horizontal distance between the outer wall of the third vertical part 13 and the outer wall of the second vertical part 9 is 62mm.
[0037] The vertical distance from the outer wall of the third straight section 11 to the middle of the fourth arc section 8 is 15mm.
[0038] The vertical distance from the middle of the second arc portion 4 to the middle of the third arc portion 6 is 43mm.
[0039] The horizontal distance from the outer wall of the first vertical part 1 to the middle of the outer wall of the third arc part 6 is 112mm.
[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A special-shaped profile for the rear pillar of a tooling safety cab, characterized in that, The cross-section of the rear column profile of the tooling safety cab includes a first vertical part (1). The first end of the first vertical part (1) is fixedly connected in sequence to the first ends of the first arc part (2), the first straight part (3), the second arc part (4), the first inclined part (5), the third arc part (6), the second inclined part (7), the fourth arc part (8), the second vertical part (9), the fifth arc part (10), the third straight part (11), the sixth arc part (12), the third vertical part (13), the seventh arc part (14), the fourth straight part (15), and the eighth arc part (16). The second end of the eighth arc part (16) is fixedly connected to the first end of the first vertical part (1).
2. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The first arc portion (2) bends 90 degrees clockwise from the first vertical portion (1) to the first straight portion (3), and the inner radius of the first arc portion (2) is 10mm.
3. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The second arc portion (4) bends from the first straight portion (3) in a clockwise direction from the first inclined portion (5), with a central angle of 122.12 degrees and an inner radius of 10 mm.
4. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The third arc portion (6) bends clockwise from the first inclined portion (5) to the second inclined portion (7), with a central angle of 102.88 degrees and an inner radius of 6 mm.
5. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The fourth arc portion (8) bends counterclockwise from the second inclined portion (7) to the second vertical portion (9), with a central angle of 135 degrees and an inner radius of 5 mm.
6. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The fifth arc portion (10) bends 90 degrees clockwise from the second vertical portion (9) to the third straight portion (11), and the inner radius of the fifth arc portion (10) is 6mm.
7. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The six-arc portion (12) bends 90 degrees clockwise from the third straight portion (11) to the third vertical portion (13), and the inner radius of the six-arc portion (12) is 6mm.
8. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The seventh arc portion (14) bends 90 degrees clockwise from the third vertical portion (13) to the fourth straight portion (15), and the inner radius of the seventh arc portion (14) is 5mm.
9. The special-shaped rear column of the tooling safety cab according to claim 1, characterized in that, The eighth arc portion (16) bends 90 degrees clockwise from the fourth straight portion (15) to the first vertical portion (1), and the inner radius of the eighth arc portion (16) is 6mm.