Spacing-adjustable armrest frame structure for bulldozer

Abstract

The utility model belongs to the technical field of engineering mechanical equipment, and relates to a distance-adjustable armrest frame structure for a bulldozer, which comprises a floor frame and two armrest frames symmetrically arranged on the floor frame, each armrest frame comprises a middle support and a distance-adjustable support movably connected to the middle support, and the distance-adjustable support is movably connected to the middle support. The middle support comprises a mounting plate and a stand column arranged on the mounting plate, the mounting plate is fixedly mounted on the floor frame, the stand column is hollow, a bolt seat and a bolt groove are arranged on the two sides of the stand column respectively, and armrests are detachably mounted at the top of the distance-adjustable support. The structure bearing capacity can be improved, meanwhile, the optimal handrail height can be obtained through adjustment according to different drivers, the operation comfort of drivers is improved, in addition, a combined installation structure is adopted, follow-up damage replacement is facilitated, the overall replacement cost is saved, and the beneficial effects of being convenient to replace, high in structural strength, capable of effectively improving the driving comfort and the like are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery equipment, and particularly relates to an adjustable-spacing handrail frame structure for a bulldozer. Background Art

[0002] A bulldozer is a commonly used engineering machinery equipment in the prior art. Since a bulldozer may need to be operated by multiple different drivers during use, the handrail frame structure in the cab needs to have the function of adjustable spacing. However, the existing handrail frame structure in the cab of a bulldozer does not have the function of adjustable spacing, cannot adapt to different drivers, cannot adjust to the optimal handrail height, is very inconvenient for operation, and affects the operating comfort of the driver. In addition, the existing handrail frame structure is fixedly installed integrally, and once it is damaged later, it needs to be replaced as a whole, resulting in a high cost. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defects and deficiencies in the prior art, and design an adjustable-spacing handrail frame structure for a bulldozer with a simple structure, stable and reliable, convenient to adjust, and cost-saving.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an adjustable-spacing handrail frame structure for a bulldozer, including a floor frame and two symmetrically arranged handrail frames on the floor frame. Both of the two handrail frames include a middle bracket and an adjustable-spacing bracket movably connected to the middle bracket. The middle bracket is fixedly installed on the floor frame, and a backrest is detachably installed on the top of the adjustable-spacing bracket.

[0005] Preferably, the middle bracket includes a mounting plate and a column arranged on the mounting plate. The column is designed with a hollow interior, and a bolt seat and a bolt groove are respectively arranged on both sides of the column.

[0006] Preferably, the adjustable-spacing bracket includes a guide sleeve. One end of the guide sleeve is arranged inside the column and can move up and down along the column, and the other end is provided with a first rib plate.

[0007] Preferably, a plurality of bolt positioning holes are arranged on the guide sleeve along its lifting direction, and the bolt positioning holes are used to realize the height adjustment and positioning of the guide sleeve on the column through cooperation with the first bolts on the bolt seat.

[0008] Preferably, the backrest is designed in an inverted L-shaped structure, and the included angle between the horizontal part and the vertical part is greater than 90°.

[0009] Preferably, a second rib plate matched with the first rib plate is arranged at the bottom of the horizontal part of the backrest, and the second rib plate is connected to the connection hole on the first rib plate through cooperation with the second bolts.

[0010] Preferably, the vertical part of the armrest is correspondingly arranged outside the bolt groove, and a screw is arranged between the vertical part and the bolt groove.

[0011] Preferably, the mounting plate is fixedly installed on the floor frame through the third bolt and the gasket.

[0012] After adopting the above technical solution, an adjustable-spacing armrest frame structure for a bulldozer provided by the present utility model has the following beneficial effects:

[0013] Through the combined structure design of the middle bracket, the adjustable-spacing bracket and the detachable armrest, the present utility model can improve the structural bearing capacity while adjusting to the optimal armrest height according to different drivers, improving the operation comfort of the driver. In addition, the combined installation structure is conducive to subsequent damage replacement and saves the overall replacement cost. Therefore, the present utility model has the advantages of being easy to replace, high structural strength, and effectively improving driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of an adjustable-spacing armrest frame structure for a bulldozer according to the present utility model;

[0015] Figure 2 is a structural schematic diagram of the adjustable-spacing bracket of the present utility model;

[0016] Figure 3 is a structural schematic diagram of the middle bracket of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the installation structure of the present utility model.

[0018] Wherein: floor frame 1, armrest frame 2, middle bracket 3, adjustable-spacing bracket 4, third bolt 5, gasket 6, armrest 7, mounting plate 8, column 9, bolt seat 10, guide sleeve 11, first rib plate 12, bolt positioning hole 13, first bolt 14, second rib plate 15, second bolt 16, connection hole 17, screw 18, bolt groove 19. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further clearly and completely described below in conjunction with the drawings and the specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further discussion in subsequent drawings.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0023] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0024] In addition, it should be noted that using terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus cannot be construed as limiting the protection scope of the present utility model.

[0025] A structure of an adjustable-spacing handrail frame for a bulldozer according to the present utility model, as Figures 1-4 shown, includes a floor frame 1, and two handrail frames 2 symmetrically arranged on the floor frame 1. Both of the two handrail frames 2 include a middle support 3, and an adjustable-spacing support 4 movably connected to the middle support 3. The middle support 3 is fixedly installed on the floor frame 1, and a handrest 7 is detachably installed at the top of the adjustable-spacing support 4.

[0026] Among them, the middle support 3 includes a mounting plate 8 and a column 9 provided on the mounting plate 8. The mounting plate 8 is fixedly installed on the floor frame 1 through a third bolt 5 and a gasket 6. The column 9 is designed to be vertical and hollow, and a bolt seat 10 and a bolt groove 19 are respectively provided on both sides of the column 9. The adjustable-spacing support 4 includes a guide sleeve 11. One end of the guide sleeve 11 is arranged inside the column 9 and can move up and down along the column 9, and the other end is provided with a first rib plate 12. A plurality of bolt positioning holes 13 are arranged on the guide sleeve 11 along its lifting direction, and the bolt positioning holes 13 cooperate with the first bolt 14 on the bolt seat 10 to realize the height adjustment and positioning of the guide sleeve 11 on the column 9.

[0027] The armrest 7 is designed in an inverted L-shaped structure, and the included angle between the horizontal part and the vertical part is greater than 90°. Specifically, a second rib plate 15 is provided at the bottom of the horizontal part of the armrest 7 to cooperate with the first rib plate 12. The second rib plate 15 is connected to the connection hole 17 on the first rib plate 12 through a second bolt 16. The vertical part of the armrest 7 is correspondingly arranged outside the bolt groove 19, and a screw 18 is provided between the vertical part and the bolt groove 19.

[0028] The adjustable-spacing armrest frame structure for a bulldozer of the present utility model can, while improving the structural bearing capacity, adjust to the optimal armrest height according to different drivers, thereby improving the operation comfort of the driver. In addition, the combined installation structure is adopted, which is beneficial to subsequent damage replacement and saves the overall replacement cost.

[0029] In summary, the adjustable-spacing armrest frame structure for a bulldozer provided by the present utility model has the advantages of being easy to replace, high structural strength, and effectively improving driving comfort, and has great market value and is worthy of wide promotion and application.

[0030] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An adjustable spacing handrail structure for a bulldozer, characterized by: It includes a floor frame (1), and two armrest frames (2) symmetrically arranged on the floor frame (1). Both of the two armrest frames (2) include a middle bracket (3) and an adjustable-spacing bracket (4) movably connected to the middle bracket (3). The middle bracket (3) is fixedly installed on the floor frame (1), and a handrest (7) is detachably installed at the top of the adjustable-spacing bracket (4).

2. The adjustable spacing armrest structure for a bulldozer according to claim 1, characterized in that: The middle bracket (3) includes a mounting plate (8) and a column (9) arranged on the mounting plate (8). The column (9) is designed with a hollow interior, and a bolt seat (10) and a bolt groove (19) are respectively arranged on both sides of the column (9).

3. An adjustable-spacing handrail structure for a bulldozer according to claim 2, characterized in that: The adjustable-spacing bracket (4) includes a guide sleeve (11). One end of the guide sleeve (11) is arranged inside the column (9) and can move up and down along the column (9), and the other end is provided with a first rib plate (12).

4. The adjustable spacing handrail structure for a bulldozer according to claim 3, characterized in that: A number of bolt positioning holes (13) are arranged on the guide sleeve (11) along its lifting direction. The bolt positioning holes (13) are used to achieve height adjustment and positioning of the guide sleeve (11) on the column (9) by cooperating with the first bolts (14) on the bolt seat (10).

5. The adjustable-spacing handrail structure for a bulldozer according to claim 3, characterized in that: The handrest (7) is designed in an inverted L-shaped structure, and the angle between the horizontal part and the vertical part is greater than 90°.

6. The adjustable-spacing handrail structure for a bulldozer according to claim 5, characterized in that: A second rib plate (15) matching with the first rib plate (12) is arranged at the bottom of the horizontal part of the handrest (7). The second rib plate (15) is connected to the connection hole (17) on the first rib plate (12) by a second bolt (16).

7. An adjustable-spacing handrail structure for a bulldozer according to claim 5, characterized in that: The vertical part of the handrest (7) is correspondingly arranged outside the bolt groove (19), and a screw (18) is arranged between the vertical part and the bolt groove (19).

8. The adjustable-spacing handrail structure for a bulldozer according to claim 2, characterized in that: The mounting plate (8) is fixedly installed on the floor frame (1) by a third bolt (5) and a gasket (6).

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