Device convenient for vehicle maintenance and pipeline fixation

Abstract

The utility model relates to the technical field of vehicle hydraulic pressure, in particular to a device convenient for vehicle maintenance and pipeline fixation, which comprises an upright post, a first pedal is arranged at the upper end of the upright post, a base is arranged at the lower end of the upright post, and a mounting hole fixedly connected with a frame is formed in the base; one end of the cross beam is connected to the stand column, the cross beam and the stand column are axially perpendicular to each other, the other end of the cross beam is provided with a second pedal, and the cross beam is further provided with a pipe clamp support used for fixing a pipe clamp. The problem that the hydraulic pipeline is damaged and broken due to the fact that the vehicle access hole conflicts with the position of the hydraulic pipeline when entering the box body for maintenance is solved, the maintenance efficiency is improved, the problems of pipeline shaking, noise and liquid leakage caused by unstable fixing or difficult fixing of the suspended section of the hydraulic pipeline are solved, the service life of a vehicle hydraulic system is prolonged, and the maintenance cost is reduced. And the universality is effectively improved.

Description

Technical Field

[0001] This utility model relates to a device that facilitates vehicle maintenance and pipeline fixing, belonging to the field of vehicle hydraulic technology. Background Technology

[0002] In the field of special-purpose vehicles, especially special-operation vehicles such as compactor trucks and sanitation vehicles, the complex operating conditions and difficult actions necessitate a large number of hydraulic lines. The stability and reliability of the hydraulic system directly affect the overall vehicle performance. As an important component of the hydraulic system, the fixing method of the hydraulic lines directly relates to pipeline vibration, noise control, and sealing reliability.

[0003] Currently, the hydraulic lines between the multi-way valve outlet and the front pillar of the housing have a long suspended section. Due to the structural limitations of the housing, it is difficult to install anchor points in this area, and binding or long cantilever clamps are commonly used for fixation. These methods have limited ability to suppress pipeline swaying, and mechanical vibration during vehicle operation can easily cause the lines to loosen, increasing the risk of leakage. Furthermore, continuous vibration accelerates the wear of pipe joint seals, shortening the service life of the hydraulic system. There are also conflicts between maintenance safety and pipeline layout issues; the maintenance port of the compressor housing often overlaps with the hydraulic pipeline area, and maintenance personnel entering the housing often accidentally step on the hydraulic lines, causing pipeline deformation, loosening of joints, or even breakage. Some models have attempted to add a separate maintenance pedal, but the additional structure occupies space, increasing the complexity of the pipeline layout and failing to balance functionality and safety. Therefore, researching a new device that facilitates vehicle maintenance and pipeline fixation is of great practical significance. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a device that facilitates vehicle maintenance and pipeline fixing.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A device for facilitating vehicle maintenance and pipeline fixing includes: a column, the upper end of which is provided with a first pedal and the lower end of which is provided with a base, the base having mounting holes for connection and fixing to the vehicle frame; a crossbeam, one end of which is connected to the column and the two are arranged perpendicularly to each other axially, the other end of which is provided with a second pedal, and the crossbeam is also provided with a pipe clamp bracket for fixing pipe clamps.

[0006] Furthermore, the pipe clamp support is an L-shaped structure, including a base plate and a vertical plate. The base plate is connected to the crossbeam by fastening bolts, and the length extension direction of the base plate is parallel to the axial direction of the crossbeam. The vertical plate is used to fix the pipe clamp, and the length extension direction of the vertical plate is parallel to the axial direction of the column. Both the base plate and the vertical plate are provided with strip-shaped holes opened along their respective length extension directions.

[0007] Furthermore, two sets of pipe clamp supports are provided on the crossbeam, and the two sets of pipe clamp supports are provided on the upper and lower surfaces of the crossbeam. A vibration buffer assembly is provided between the pipe clamp supports and the crossbeam.

[0008] Furthermore, the vibration damping assembly includes a lower cover fixedly disposed on the surface of the crossbeam and an upper cover covering the lower cover. The upper cover abuts against the base plate, and the contact surfaces of the two are provided with anti-slip textures. The lower cover has at least one lower groove recessed towards its bottom. The upper cover has at least one upper groove recessed towards its top, directly opposite the lower groove. The lower groove and the upper groove have the same cross-sectional shape and together form a receiving cavity. An elastic buffer is disposed in the receiving cavity. The length extension direction of the elastic buffer is parallel to the axial direction of the crossbeam. The upper cover and the lower cover also have through holes for the fastening bolts to pass through.

[0009] Furthermore, the base has an L-shaped structure, with mounting holes at both bent ends.

[0010] Furthermore, several sets of reinforcing blocks are provided at the connection between the first pedal and the column, and at the connection between the base and the column. A reinforcing plate is provided at the connection between the crossbeam and the column. The bottom of the reinforcing plate is fixedly connected to the top of the crossbeam, and the side of the reinforcing plate is fixedly connected to the side of the column. A circular hole is provided on the reinforcing plate. The vertical distance K1 from the center of the circular hole to the bottom of the reinforcing plate is equal to the vertical distance K2 from the center of the circular hole to the side of the reinforcing plate.

[0011] The relationship between the projected length K3 of the reinforcing plate on the crossbeam and the projected length K4 of the reinforcing plate on the column is: K3 = (1.2 - 1.4)K4.

[0012] Furthermore, the relationship between the column length L1, the beam length L2, and the projection length K3 of the reinforcing plate on the beam satisfies L1:L2:K3=(5.0-5.5):(3.3-3.7):1.

[0013] Furthermore, the vertical distance L3 between the crossbeam and the lower surface of the first pedal is 0.35-0.4 times the length L1 of the column.

[0014] Furthermore, both the column and the beam are square hollow structures, and reinforcing ribs are provided inside the hollow.

[0015] Furthermore, both the surface of the first pedal and the surface of the second pedal are provided with crisscrossing anti-slip patterns.

[0016] The beneficial effects of this utility model are:

[0017] By combining the vehicle inspection pedal with the hydraulic pipeline fixing clamps, the conflict between the vehicle inspection port and the hydraulic pipeline position is resolved, preventing damage or breakage caused by stepping on the hydraulic pipeline when entering the housing for maintenance. This improves maintenance efficiency. It also solves the problems of unstable or difficult fixing of the suspended section of the hydraulic pipeline, leading to pipeline swaying, noise, and leakage, thus extending the service life of the vehicle's hydraulic system. Furthermore, the flexible addition or removal of the clamps allows for adaptation to the pipeline layout of various vehicle models, effectively improving versatility. Secondly, by connecting and fixing the device described in this application to the frame, the frame provides sufficient rigid support. During use, the load can be evenly transferred to the frame, avoiding localized stress concentration and ensuring sufficient structural strength to improve load-bearing capacity and extend service life. Sufficient structural strength also further suppresses pipeline swaying caused by mechanical vibration, ensuring stable and reliable operation and achieving the dual effects of improved load-bearing capacity and vibration reduction. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the vehicle maintenance and pipeline fixing device provided in an embodiment of this utility model;

[0019] Figure 2 This is a front view of the vehicle maintenance and pipeline fixing device provided in an embodiment of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the pipe clamp support provided in the embodiment of this utility model;

[0021] Figure 4 This is a cross-sectional view of the vibration buffer assembly provided in an embodiment of the present utility model;

[0022] Figure 5 This is a front view of the reinforcing plate provided in an embodiment of the present utility model;

[0023] Figure 6 This is a cross-sectional view of the column provided in an embodiment of the present utility model.

[0024] Reference numerals: 1. Column; 2. First pedal; 3. Base; 31. Mounting hole; 4. Crossbeam; 5. Second pedal; 6. Pipe clamp; 7. Pipe clamp bracket; 71. Base plate; 72. Vertical plate; 73. Strip hole; 8. Vibration buffer assembly; 81. Lower cover; 82. Upper cover; 83. Receiving cavity; 84. Elastic buffer; 9. Reinforcing block; 10. Reinforcing plate; 101. Round hole; 11. Reinforcing rib. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below. This utility model can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used is for describing particular embodiments only and is not intended to limit the scope of this invention.

[0027] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example:

[0030] like Figure 1-2 As shown, this utility model provides a device for facilitating vehicle maintenance and pipeline fixing, comprising: a column 1, with a first pedal 2 at the upper end and a base 3 at the lower end, the base 3 having mounting holes 31 for connection and fixing to the vehicle frame; the first pedal 2 being welded and fixed to the upper end of the column 1, and the base 3 being welded and fixed to the lower end of the column 1; a crossbeam 4, one end of which is connected to the column 1 and the two are axially perpendicular to each other, and the other end of which is provided with a second pedal 5; the crossbeam 4 also has a pipe clamp bracket 7 for fixing pipe clamps 6; the crossbeam 4 is fixed to the column 1 by welding, the second pedal 5 is welded and fixed to one end of the crossbeam 4, and the pipe clamp bracket 7 is detachably connected to the crossbeam 4. It should be noted that the number of pipe clamps 6 can be flexibly increased or decreased according to different usage conditions to adapt to the hydraulic pipeline layout of different vehicle models. The pipe clamps 6 are well-known structures in the art and will not be described in detail here.

[0031] By combining the vehicle inspection pedal with the hydraulic pipeline fixing clamps, the conflict between the vehicle inspection port and the hydraulic pipeline position is resolved, preventing damage or breakage caused by stepping on the hydraulic pipeline when entering the housing for maintenance. This improves maintenance efficiency. It also solves the problems of unstable or difficult fixing of the suspended section of the hydraulic pipeline, leading to pipeline swaying, noise, and leakage, thus extending the service life of the vehicle's hydraulic system. Furthermore, the flexible addition or removal of the clamps allows for adaptation to the pipeline layout of various vehicle models, effectively improving versatility. Secondly, by connecting and fixing the device described in this application to the frame, the frame provides sufficient rigid support. During use, the load can be evenly transferred to the frame, avoiding localized stress concentration and ensuring sufficient structural strength to improve load-bearing capacity and extend service life. Sufficient structural strength also further suppresses pipeline swaying caused by mechanical vibration, ensuring stable and reliable operation and achieving the dual effects of improved load-bearing capacity and vibration reduction.

[0032] Specifically, such as Figure 3 As shown, the pipe clamp bracket 7 has an L-shaped structure, including a base plate 71 and a vertical plate 72. The base plate 71 is connected to the crossbeam 4 by fastening bolts, and the length extension direction of the base plate 71 is parallel to the axis of the crossbeam 4. The vertical plate 72 is used to fix the pipe clamp 6, and the length extension direction of the vertical plate 72 is parallel to the axis of the column 1. Both the base plate 71 and the vertical plate 72 are provided with strip-shaped holes 73 along their respective length extension directions. It should be noted that, in order to avoid local stress concentration and extend service life, the base plate 71 and the vertical plate 72 are integral structures manufactured by machining, and the connection between the two is transitioned by rounded corners. With this setting, during use, the base plate 71 provides lateral stiffness, and the vertical plate 72 provides vertical damping, further suppressing vibration and reducing the resonance amplitude by 60%. Furthermore, by providing strip-shaped holes 73, the lateral and vertical positions of the pipe clamp 6 relative to the hydraulic pipeline can also be adjusted, further improving versatility.

[0033] Specifically, to further improve the versatility of the device described in this application, two sets of pipe clamp supports 7 are provided on the crossbeam 4. The two sets of pipe clamp supports 7 are provided on the upper and lower surfaces of the crossbeam 4. A vibration buffer assembly 8 is provided between the pipe clamp supports 7 and the crossbeam 4. It should be noted that during use, the size of the pipe clamp supports 7 can be reasonably adjusted according to the hydraulic pipeline layout to adapt to the required conditions.

[0034] Specifically, such as Figure 4As shown, the vibration buffer assembly 8 includes a lower cover 81 fixedly disposed on the surface of the crossbeam 4 and an upper cover 82 covering the lower cover 81. The upper cover 82 abuts against the base plate 71 and the contact surface of the two is provided with anti-slip texture. The lower cover 81 has at least one lower groove recessed towards its bottom. The upper cover 82 has at least one upper groove recessed towards its top, which is directly opposite the lower groove. The lower groove and the upper groove have the same cross-sectional shape and together form a receiving cavity 83. An elastic buffer member 84 is provided in the receiving cavity 83. The length extension direction of the elastic buffer member 84 is parallel to the axial direction of the crossbeam 4. The upper cover 82 and the lower cover 81 also have through holes for the fastening bolts to pass through. It should be noted that the lower cover 81 is fixed to the surface of the crossbeam 4 by welding. In this embodiment, the lower cover 81 has two lower grooves and a through hole for the fastening bolt to pass through is located between the two lower grooves. Similarly, the upper cover 82 has two upper grooves and a through hole for the fastening bolt to pass through is located between the two upper grooves. The elastic buffer 84 is a spring sheet or a compression spring. In this embodiment, the elastic buffer 84 is a compression spring. With this setting, the vibration buffer assembly 8 can more effectively absorb mechanical vibration during use, which can further reduce the resonance amplitude between the hydraulic pipeline and the device described in this application. The directional amplitude of the hydraulic pipeline is ≤1 mm. It can also ensure the holding force of the fastening bolt, avoid the fastening bolt from loosening, and further ensure the stability during use.

[0035] Specifically, to further ensure connection stability, the base 3 has an L-shaped structure with mounting holes 31 at both ends of the bend. As shown in the figure, the two ends of the bend point to the end that bends downward and the end that remains horizontal.

[0036] Specifically, such as Figure 2 , 5 As shown, several sets of reinforcing blocks 9 are provided at the connection between the first pedal 2 and the column 1, and at the connection between the base 3 and the column 1. A reinforcing plate 10 is provided at the connection between the crossbeam 4 and the column 1. The bottom of the reinforcing plate 10 is fixedly connected to the top of the crossbeam 4, and the side of the reinforcing plate 10 is fixedly connected to the side of the column 1. A circular hole 101 is provided on the reinforcing plate 10. The vertical distance K1 from the center of the circular hole 101 to the bottom of the reinforcing plate 10 is equal to the vertical distance K2 from the center of the circular hole 101 to the side of the reinforcing plate 10.

[0037] The relationship between the projected length K3 of the reinforcing plate 10 on the crossbeam 4 and the projected length K4 of the reinforcing plate 10 on the column 1 satisfies: K3 = (1.2-1.4)K4. By setting the reinforcing block 9 and the reinforcing plate 10, the structural strength is further improved. Specifically, by limiting the vertical distance K1 from the center of the circular hole 101 to the bottom of the reinforcing plate 10 to be equal to the vertical distance K2 from the center of the circular hole 101 to the side of the reinforcing plate 10, the bending moment is uniformly transmitted along the diagonal of the reinforcing plate 10. This ensures uniform stress distribution while improving local bending stiffness and the ability to absorb sudden load impact energy, effectively reducing the impact of sudden loads on the hydraulic pipeline during operation and further extending service life. If K3 < 1.2K4, then the reinforcing plate 10 provides insufficient support for the crossbeam 4. When the second pedal 5 is stepped on, the bending deflection of the crossbeam 4 is too large, leading to… This increases the risk of bending deformation of the crossbeam 4 under pressure, and the local stress concentration at the weld joint makes it prone to cracking. Secondly, it will also cause the resonant frequency of the reinforcing plate 10 to drop to the resonant frequency range, increasing the risk of resonance. If K3 > 1.4K4, although the probability of bending of the crossbeam 4 can be reduced, the redundancy of lateral stiffness leads to an increase in mass, which is not conducive to lightweighting and will increase the space occupation. In addition, the tensile force on the column 1 is too large, which increases the risk of bending deformation of the column 1 under stress. Only when K3 = (1.2-1.4)K4 can resonance be further suppressed and the probability of bending deformation of the column 1 and the crossbeam 4 be reduced while ensuring the overall structural strength and lightweighting.

[0038] Specifically, such as Figure 2As shown, the relationship between the length L1 of the column 1, the length L2 of the crossbeam 4, and the projection length K3 of the reinforcing plate 10 on the crossbeam 4 satisfies L1:L2:K3=(5.0-5.5):(3.3-3.7):1. This arrangement ensures that the stiffness of the column 1 and the crossbeam 4 are matched while balancing lightweight design and operating space. The reinforcing plate 10 provides local bending resistance, and the maximum bending moment area of ​​the crossbeam 4 coincides with the support area of ​​the reinforcing plate 10, ensuring that the reinforcing plate 10 covers the high-stress area, suppressing the deflection of the crossbeam 4, improving bending resistance, and forming a stable triangular support structure. If the column 1 is too long and the crossbeam 4 is too short (L1>5.5K3, L2<3.3K3), the impact energy will concentrate at the connection of the crossbeam 4, easily causing local stress concentration and potentially leading to weld cracking. The reinforcing plate 10 extends into the low-stress area of ​​the crossbeam 4, increasing the structural redundancy and mass. This, in turn, increases the overall inertia of the crossbeam 4, lowering its natural frequency and making it highly susceptible to low-frequency resonance. If the column 1 is too short and the crossbeam 4 is too long (L1 < 5.0K3, L2 > 3.7K3), the impact energy cannot be effectively diffused through the column 1. The crossbeam 4 may undergo permanent deformation due to excessive bending. Furthermore, the reinforcing plate 10 does not adequately cover the crossbeam 4, causing mechanical vibration energy to concentrate in the area of ​​the crossbeam 4 not covered by the reinforcing plate 10. This results in an increase in the local amplitude of the crossbeam 4, accelerating fatigue deformation.

[0039] Specifically, such as Figure 2 As shown, the vertical distance L3 between the crossbeam 4 and the lower surface of the first pedal 2 is 0.35-0.4 times the length L1 of the column 1. This parameter ensures a reasonable vertical support distance between the crossbeam 4 and the first pedal 2, forming a stable load transfer path and avoiding local stress concentration. If L3 < 0.35L1, the distance between the crossbeam 4 and the first pedal 2 is too close, and the load of the first pedal 2 acts directly on the near end of the crossbeam 4, resulting in an excessive bending moment at the root, which can easily cause cracking at the weld between the column 1 and the crossbeam 4. If L3 > 0.4L1, the distance between the crossbeam 4 and the first pedal 2 is too far, and the load of the first pedal 2 forms a long lever arm, significantly increasing the deflection of the crossbeam 4 and reducing overall stability.

[0040] Specifically, such as Figure 6 As shown, to further enhance the overall structural strength, both the column 1 and the beam 4 are square hollow structures, each with a reinforcing rib 11 inside. The reinforcing rib 11 can be cross-shaped, straight, or star-shaped. In this embodiment, a cross-shaped reinforcing rib 11 is used. In actual production, the shape of the reinforcing rib 11 can be specifically designed according to performance requirements, and is not limited to the cross-shaped reinforcing rib 11 described in this embodiment. By setting square tubes and reinforcing ribs 11, the overall structural strength is enhanced while ensuring structural lightweight.

[0041] Specifically, to ensure safety when people step on it, both the surface of the first pedal 2 and the surface of the second pedal 5 are provided with crisscrossing anti-slip patterns.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are exhaustively listed. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these modifications and improvements are all within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims.

Claims

1. A device for facilitating vehicle servicing and pipe fixing, characterized in that, include: The upright has a first pedal at its upper end and a base at its lower end, with mounting holes on the base for connection and fixation to the vehicle frame. A crossbeam, one end of which is connected to the column and the two are arranged perpendicularly to each other in the axis, and the other end of which is provided with a second pedal. The crossbeam is also provided with a pipe clamp bracket for fixing the pipe clamp.

2. The device for facilitating vehicle servicing and pipe fixing according to claim 1, wherein, The pipe clamp support is an L-shaped structure, including a base plate and a vertical plate. The base plate is connected to the crossbeam by fastening bolts, and the length extension direction of the base plate is parallel to the axis of the crossbeam. The vertical plate is used to fix the pipe clamp, and the length extension direction of the vertical plate is parallel to the axis of the column. Both the base plate and the vertical plate are provided with strip-shaped holes opened along their respective length extension directions.

3. The device of claim 2, wherein, Two sets of pipe clamp supports are provided on the crossbeam, and the two sets of pipe clamp supports are provided on the upper and lower surfaces of the crossbeam. A vibration buffer assembly is provided between the pipe clamp supports and the crossbeam.

4. The device of claim 3, wherein, The vibration damping assembly includes a lower cover fixedly disposed on the surface of the crossbeam and an upper cover covering the lower cover. The upper cover abuts against the base plate, and the contact surfaces of the two are provided with anti-slip textures. The lower cover has at least one lower groove recessed towards its bottom. The upper cover has at least one upper groove recessed towards its top, directly opposite the lower groove. The lower groove and the upper groove have the same cross-sectional shape and together form a receiving cavity. An elastic buffer is disposed in the receiving cavity. The length extension direction of the elastic buffer is parallel to the axial direction of the crossbeam. The upper cover and the lower cover also have through holes for the fastening bolts to pass through.

5. The device of claim 1, wherein, The base has an L-shaped structure, with mounting holes at both bent ends.

6. The device for facilitating vehicle servicing and pipe fixing according to any one of claims 1-5, characterized in that, Several sets of reinforcing blocks are provided at the connection between the first pedal and the column, and at the connection between the base and the column. A reinforcing plate is provided at the connection between the crossbeam and the column. The bottom of the reinforcing plate is fixedly connected to the top of the crossbeam, and the side of the reinforcing plate is fixedly connected to the side of the column. A circular hole is provided on the reinforcing plate. The vertical distance K1 from the center of the circular hole to the bottom of the reinforcing plate is equal to the vertical distance K2 from the center of the circular hole to the side of the reinforcing plate. The relationship between the projected length K3 of the reinforcing plate on the crossbeam and the projected length K4 of the reinforcing plate on the column is: K3 = (1.2 - 1.4)K4.

7. The device for facilitating vehicle maintenance and pipeline fixing according to claim 6, characterized in that, The relationship between the column length L1, the beam length L2, and the projection length K3 of the reinforcing plate on the beam satisfies L1:L2:K3=(5.0-5.5):(3.3-3.7):

1.

8. The device of claim 7, wherein, The vertical distance L3 between the crossbeam and the lower surface of the first pedal is 0.35-0.4 times the length L1 of the column.

9. The device of claim 1, wherein, Both the uprights and the crossbeams are square hollow structures, and reinforcing ribs are provided inside the hollows.

10. The device of claim 1, wherein, Both the surface of the first pedal and the surface of the second pedal are provided with crisscrossing anti-slip textures.

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