Hydraulic protective cover for fork arm

Abstract

The utility model relates to the technical field of hydraulic protective covers, and discloses a fork arm hydraulic protective cover which comprises an elevator, a hydraulic cylinder is rotatably connected to the inner wall of the elevator, a bottom shell is rotatably connected to the inner wall of the elevator, a first shell is slidably connected to the inner wall of the bottom shell, and a second shell is slidably connected to the inner wall of the first shell. First racks are fixedly connected to the inner walls of the left side and the right side of the bottom shell correspondingly, two square openings are formed in the inner wall of the first shell, stud gears are rotationally connected to the inner walls of the square openings, second racks are fixedly connected to the left side and the right side of the second shell correspondingly, and trapezoidal blocks are fixedly connected to the outer walls of the left side and the right side of the first shell correspondingly. According to the utility model, the telescopic movement is realized, the protective cover is telescopic, an operator does not need to spend time in manually adjusting the position of the protective cover, the working efficiency is improved, and the telescopic structure is beneficial to reducing abrasion caused by frequent movement or adjustment, so that the long-term maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic protection cover technical field especially relates to fork arm hydraulic protection cover. BACKGROUND

[0002] Fork arm hydraulic protection cover is usually used in engineering machinery, protecting the key components of hydraulic system, hydraulic cylinder and oil pipe, from external impact and damage. The design of these protection covers aims to improve the durability and safety of machinery, reduce maintenance costs, and ensure the safety of operators.

[0003] However, some protection devices in the prior art are difficult to extend and retract, and traditional protection measures include fixed covers made of hard materials or simple protective nets. However, these measures are insufficient to cope with complex working environments and high-intensity impacts, and the protection cover cannot be extended and retracted, limiting its protection effect and making it unable to adapt to different working environments and conditions. Therefore, the fork arm hydraulic protection cover is proposed to solve the above problems. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a fork arm hydraulic protection cover, aiming to improve the problem that it is difficult to extend and retract in the prior art, the protection cover cannot be extended and retracted, and operators need to spend more time manually adjusting the position of the protection cover, which reduces work efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a fork arm hydraulic protection cover, comprising a lift, the inner wall of the lift is rotatably connected with a hydraulic cylinder, the inner wall of the lift is rotatably connected with a bottom shell, the inner wall of the bottom shell is slidably connected with a shell one, the inner wall of the shell one is slidably connected with a shell two, the inner walls of the left and right sides of the bottom shell are respectively fixedly connected with a rack one, two square openings are formed in the inner wall of the shell one, the inner wall of the square opening is rotatably connected with a column gear, the left and right sides of the shell two are respectively fixedly connected with a rack two, grooves are respectively formed in the inner walls of the left and right sides of the shell one, trapezoidal blocks are respectively fixedly connected to the outer walls of the left and right sides of the shell one, a damping and pressure reducing assembly is slidably connected to the outer wall of the bottom shell, and the damping and pressure reducing assembly is used for damping and pressure reduction of the hydraulic cylinder.

[0006] As a further description of the above technical scheme: the damping and pressure reducing assembly comprises a box body, a plurality of sliding grooves are formed in the outer wall of the shell one, a plurality of fixed blocks are fixedly connected to the inner wall of the box body, an arcuate plate is fixedly connected to the inner wall of the fixed block, rollers are rotatably connected to the outer walls of the upper and lower sides of the arcuate plate, tension springs are fixedly connected to the outer wall of the fixed block, and telescopic rods are fixedly connected to the outer wall of the fixed block.

[0007] As the further description of the technical scheme above: the outer wall of the top end of the hydraulic cylinder is fixedly connected with the shell two, and the bottom end of the hydraulic cylinder is fixedly connected with the inner wall of the bottom end of the box.

[0008] As the further description of the technical scheme above: the outer wall of the rack one is engaged with the outer wall of one of the column gears, and the outer wall of the column gear is rotatably connected with the inner wall of the shell one.

[0009] As the further description of the technical scheme above: the outer wall of one of the column gears is engaged with the outer wall of the rack two, and the outer wall of the trapezoidal block is slidably connected with the inner wall of the slot.

[0010] As the further description of the technical scheme above: the outer wall of the trapezoidal block is slidably connected with the inner wall of the shell one, and the outer wall of the roller is rotatably connected with the inner wall of the sliding groove.

[0011] As the further description of the technical scheme above: the bottom end of the box is rotatably connected with the inner wall of the elevator, and the outer wall of the roller is rotatably connected with the outer wall of the bottom shell.

[0012] As the further description of the technical scheme above: the outer wall of the telescopic rod is fixedly connected with the outer wall of the sliding groove, and the outer wall of the telescopic rod is fixedly connected with the outer wall of the sliding groove.

[0013] The utility model has the advantages of:

[0014] 1. In the utility model, the shell two is lifted by the hydraulic cylinder, the column gear is rotated, and the shell one is lifted, so that telescopic movement is realized, the protective cover can be telescopic, the operator does not need to spend more time to manually adjust the position of the protective cover, the work efficiency is improved, the telescopic structure helps to reduce the abrasion caused by frequent movement or adjustment, thereby reducing the long-term maintenance cost.

[0015] 2. In the utility model, the roller is pressed by the arc plate, the tension spring is compressed, and the telescopic rod is compressed, so that vibration and pressure reduction are realized, the impact load on the mechanical structure is reduced by absorbing the impact, thereby reducing the abrasion and prolonging the service life of the equipment. ACCURACY OF DRAWINGS

[0016] Figure 1 It is a perspective view of the fork arm hydraulic protective cover provided by the utility model;

[0017] Figure 2 It is a structural schematic view of the hydraulic cylinder of the fork arm hydraulic protective cover provided by the utility model;

[0018] Figure 3 It is an enlarged view of A in the utility model; Figure 2 ​

[0019] Figure 4 is a zoomed-in view of B in Figure 2 ;

[0020] Figure 5 is a structural schematic view of rack two of the fork arm hydraulic protection cover according to the utility model;

[0021] Figure 6 is a zoomed-in view of C in Figure 5 ;

[0022] Figure 7 is a structural schematic view of the box body of the fork arm hydraulic protection cover according to the utility model;

[0023] Figure 8 is a zoomed-in view of D in Figure 7 .

[0024] Legend:

[0025] 1, elevator; 2, hydraulic cylinder; 3, bottom shell; 4, shell one; 5, shell two; 6, rack one; 7, square opening; 8, column gear; 9, rack two; 10, slot; 11, trapezoidal block; 12, box body; 13, sliding groove; 14, fixed block; 15, arcuate plate; 16, roller; 17, tension spring; 18, telescopic rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Refer to Figure 1 , Figure 2 , Figure 3The utility model provides a kind of embodiment: fork arm hydraulic protection cover, the inner wall of elevator 1 is rotatably connected with hydraulic cylinder 2, hydraulic cylinder 2 can generate relatively larger thrust or tension, and its own size is smaller, suitable for the application scene of limited space, the inner wall of elevator 1 is rotatably connected with bottom shell 3, bottom shell 3 can effectively transmit the heat generated inside to outside, protect internal component from overheating, the inner wall of bottom shell 3 is slidably connected with shell one 4, shell one 4 can protect internal sensitive or fragile components from physical damage, dust, moisture and harmful chemical substances, the inner wall of shell two 5 is slidably connected with shell one 4, the left and right two inner walls of bottom shell 3 are respectively fixedly connected with rack one 6, rack one 6 can transmit larger power, and have higher transmission accuracy, suitable for the application scene needing accurate control, the inner wall of shell one 4 is provided with two square openings 7, the inner wall of square opening 7 is rotatably connected with column gear 8.

[0028] Referring to Figure 4 Figure 5 、 Figure 6 The left and right sides of shell two 5 are respectively fixedly connected with rack two 9, the design and material selection of rack two 9 make them have good wear resistance and fatigue resistance in long-term operation, so as to ensure longer service life and high reliability, the left and right inner walls of shell one 4 are respectively provided with notches 10, the left and right outer walls of shell one 4 are respectively fixedly connected with trapezoidal blocks 11, the side surface design of trapezoidal block 11 can provide good guiding effect, to ensure that mechanical components move smoothly along the predetermined path, the outer wall of bottom shell 3 is slidably connected with a damping and pressure reducing assembly, which is used for damping and pressure reduction of hydraulic cylinder 2.

[0029] Referring to Figure 7 、 Figure 8 The damping and pressure reducing assembly includes a box body 12, the internal space of box body 12 can be fully utilized, suitable for storing articles or as a housing of mechanical equipment, the outer wall of shell one 4 is provided with a plurality of sliding grooves 13, the purpose of the arrangement of sliding groove 13 is to provide a guiding path for subsequent sliding connection, to ensure that shell one 4 and box body 12 can slide smoothly without deviating from the track, the inner wall of box body 12 is fixedly connected with a plurality of fixed blocks 14, the inner wall of fixed block 14 is fixedly connected with an arcuate plate 15, the fixed block 14 provides a stable support point for the subsequent arcuate plate 15, to ensure that the entire structure can remain stable when bearing external force or weight, the outer walls of the upper and lower sides of arcuate plate 15 are rotatably connected with rollers 16, the outer wall of fixed block 14 is fixedly connected with a tension spring 17, the tension spring 17 can generate appropriate tension when moving relatively, to ensure the tightness of the connection, while playing a buffering role when the box body 12 is impacted from outside, reducing the vibration of the structure, the outer wall of fixed block 14 is fixedly connected with a telescopic rod 18.

[0030] Referring to Figure 2 ,Figure 5 、 Figure 7 , The outer wall of the top end of the hydraulic cylinder 2 is fixedly connected with the shell two 5, and the bottom end of the hydraulic cylinder 2 is fixedly connected with the inner wall of the bottom end of the box body 12. The hydraulic cylinder 2 can serve as a bridge for power transmission between the box body 12 and the shell two 5, and through the extension and contraction of the hydraulic cylinder 2, the relative movement or position change between the box body 12 and the shell two 5 is realized. The outer wall of the rack one 6 is engaged with the outer wall of one of the column gears 8, the column gear 8 can rotate freely inside the shell while maintaining the stability of the structure, without axial or radial displacement, ensuring the accuracy and reliability of the transmission process. The outer wall of the column gear 8 is rotatably connected to the inner wall of the shell one 4. The outer wall of one of the column gears 8 is engaged with the outer wall of the rack two 9, compared with the screw transmission, the rack two 9 is not easy to bend under long-distance heavy load, so it is suitable for applications that require long-distance linear motion. The outer wall of the trapezoidal block 11 is slidably connected to the inner wall of the notch 10. The outer wall of the trapezoidal block 11 is slidably connected to the inner wall of the shell one 4, and the trapezoidal block 11 can slide freely inside the shell two 5, realizing displacement control of the structure, and also being able to withstand and transmit force, ensuring the stability of the entire system during complex motion. The outer wall of the roller 16 is rotatably connected to the inner wall of the sliding groove 13. The bottom end of the box body 12 is rotatably connected to the inner wall of the elevator 1, and the bottom end of the box body 12 is connected to the inner wall of the elevator 1 through the rotary connection, which enables the box body 12 to move up and down under the control of the elevator 1 while maintaining the stability of the structure and the accuracy of the movement. The outer wall of the roller 16 is rotatably connected to the outer wall of the bottom shell 3. The roller 16 can freely roll on the bottom shell 3, reducing friction and ensuring smooth movement of the structure when subjected to external force or gravity, while the rotation of the roller 16 also absorbs vibration, improving the impact resistance of the system. The outer wall of the telescopic rod 18 is fixedly connected to the outer wall of the sliding groove 13, and the telescopic rod 18 can serve as a connecting piece between the shell one 4 and the box body 12, providing support and guiding functions, and also absorbing part of the energy when subjected to external force, reducing the vibration and damage of the structure. The outer wall of the telescopic rod 18 is fixedly connected to the outer wall of the sliding groove 13.

[0031] Working principle: when the hydraulic cylinder 2 starts, the top of the hydraulic cylinder 2 will drive the shell two 5 to rise, the shell two 5 rises to drive the rack two 9 to rise, the rack two 9 rises to make one of the column gears 8 rotate, in turn driving the shell one 4 to rise, the shell one 4 rises to make the other column gear 8 also rotate, realizing telescopic movement, the protective cover can be telescopic, the operator does not need to spend more time to manually adjust the position of the protective cover, improving work efficiency, the telescopic structure helps to reduce wear caused by frequent movement or adjustment, thereby reducing long-term maintenance cost.

[0032] When the hydraulic cylinder 2 is impacted or extruded, the box 12 is pressed, the box 12 in turn presses the fixed block 14, the fixed block 14 in turn presses the arc plate 15, the arc plate 15 is pressed to make the upper and lower rollers 16 slide on the inner wall of the sliding groove 13, the fixed block 14 also presses the tension spring 17 to make the tension spring 17 contract, the fixed block 14 also presses the telescopic rod 18 to make the telescopic rod 18 contract, the shock absorption and pressure reduction are realized, the impact load on the mechanical structure is reduced by absorbing the impact, thereby reducing the abrasion, prolonging the service life of the equipment, the shock absorption and pressure reduction design has self-resetting capability, can recover automatically after suffering small damage, and maintains the protection function.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. Hydraulic protection shield for fork arms, comprising a lift (1), characterized in that: The inner wall of the elevator (1) is rotationally connected with a hydraulic cylinder (2), the inner wall of the elevator (1) is rotationally connected with a bottom shell (3), the inner wall of the bottom shell (3) is slidably connected with a shell one (4), the inner wall of the shell one (4) is slidably connected with a shell two (5), the left and right inner walls of the bottom shell (3) are respectively fixedly connected with a rack one (6), two square openings (7) are formed in the inner wall of the shell one (4), the inner wall of the square opening (7) is rotationally connected with a column gear (8), the left and right sides of the shell two (5) are respectively fixedly connected with a rack two (9), the left and right inner walls of the shell one (4) are respectively provided with a notch (10), the left and right outer walls of the shell one (4) are respectively fixedly connected with a trapezoidal block (11), the outer wall of the bottom shell (3) is slidably connected with a damping and pressure reducing assembly, and the damping and pressure reducing assembly is used for damping and pressure reduction of the hydraulic cylinder (2).

2. The hydraulic fork arm protection boot of claim 1, wherein: The damping and pressure reducing assembly comprises a box body (12), a plurality of sliding grooves (13) are formed in the outer wall of the shell one (4), a plurality of fixed blocks (14) are fixedly connected to the inner wall of the box body (12), the inner wall of the fixed block (14) is fixedly connected with an arc plate (15), the upper and lower outer walls of the arc plate (15) are respectively rotationally connected with a roller (16), the outer wall of the fixed block (14) is fixedly connected with a tension spring (17), and the outer wall of the fixed block (14) is fixedly connected with a telescopic rod (18).

3. The hydraulic fork arm protection boot of claim 2, wherein: The top end outer wall of the hydraulic cylinder (2) is fixedly connected with the shell two (5), and the bottom end of the hydraulic cylinder (2) is fixedly connected to the bottom end inner wall of the box body (12).

4. The hydraulic fork arm protection boot of claim 1, wherein: The outer wall of the rack one (6) is engaged with the outer wall of one of the column gears (8), and the outer wall of the column gear (8) is rotationally connected to the inner wall of the shell one (4).

5. The hydraulic fork arm protection boot of claim 1, wherein: The outer wall of one of the column gears (8) is engaged with the outer wall of the rack two (9), and the outer wall of the trapezoidal block (11) is slidably connected to the inner wall of the notch (10).

6. The hydraulic fork arm protection boot of claim 2, wherein: The outer wall of the trapezoidal block (11) is slidably connected to the inner wall of the shell one (4), and the outer wall of the roller (16) is rotationally connected to the inner wall of the sliding groove (13).

7. The hydraulic fork arm protection boot of claim 2, wherein: The bottom end of the box body (12) is rotationally connected to the inner wall of the elevator (1), and the outer wall of the roller (16) is rotationally connected to the outer wall of the bottom shell (3).

8. The hydraulic fork arm protection boot of claim 2, wherein: The outer wall of the telescopic rod (18) is fixedly connected to the outer wall of the sliding groove (13), and the outer wall of the telescopic rod (18) is fixedly connected to the outer wall of the sliding groove (13).

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