Pedal structure of excavator

Abstract

The utility model discloses a pedal structure of an excavator. The pedal structure comprises a pedal plate, a pedal connecting unit, a trigger connecting piece and a pedal valve which are sequentially connected from top to bottom, the pedal plate forms a half sole part and a heel part, a hollow hole is formed in the half sole part, the pedal connecting unit comprises a main body part and an adjustable connecting wing block, the adjustable connecting wing block is in threaded connection with the pedal plate, and the trigger connecting piece is connected to the pedal connecting unit through a second connecting rod; the pedal is redesigned, a V-shaped structure forcing a driver to hook feet is forbidden, and the foot adaptability of the pedal is enhanced; the inclination angle can be adjusted through structural cooperation, the pedal can be easily adjusted so as to adapt to drivers with different body types, postures and foot dorsiflexion capacity, shank cramp is effectively prevented, and therefore the working experience is improved; in addition, the pedal connecting unit is in hard connection with the pedal valve through the trigger connecting piece, the problem of traditional idle stepping stroke is solved, the higher trigger speed is achieved, and the operation experience is more sensitive.

Description

Technical Field

[0001] This utility model relates to a foot pedal structure, and more particularly to a foot pedal structure for an excavator. Background Technology

[0002] my country is a globally renowned powerhouse in infrastructure construction, and the rapid development of its infrastructure projects is astonishing. Excavators, as indispensable machinery in infrastructure projects, play a crucial role in earthwork construction. They are widely used in mechanized construction across numerous fields, including industrial and civil buildings, transportation, water conservancy and hydropower projects, farmland improvement, mining, and modern military engineering.

[0003] The foot pedals of an excavator, commonly known as the excavator foot pedals, are an important component of the excavator and directly affect the operator's ease of control over the excavator.

[0004] In traditional excavator foot pedals, the pedal is the tool used by the operator to apply force. When the pedal is pressed down and triggers the foot valve's travel, the valve core moves downward, opening the hydraulic oil passage and driving the actuator to complete the excavator's designated mechanical operation. After the operator applies force, the traditional excavator's foot pedal has a short travel distance after being pressed down, resulting in a brief delay in mechanical operation and poor sensitivity, which the operator often refers to as "feeling out of place." Furthermore, to accommodate the direction of travel during this travel distance, traditional foot pedal designs often include a V-shaped bend structure. Whether it's a separate or integrated V-shaped bend structure, it's a design solution adopted to facilitate the operator's application of force. However, the V-shaped bend structure of the pedal forces the operator to maintain a hooked-toe posture, which can easily lead to calf muscle cramps after prolonged work and is also unsuitable for operators of different body types, postures, and dorsiflexion abilities.

[0005] The excavator pedal valve, disclosed in patent CN108811505B, includes: a main body with flow paths for controlling forward and reverse movement formed vertically at its front and rear sides; a cam portion located at the upper end of the main body, capable of rotating back and forth about a central axis via a pedal drive; and lever portions located at the lower front and rear of the cam portion, capable of applying force vertically along the flow paths of the main body. In this patented design, the pedal is an integral V-shaped bending structure, forcing the driver to maintain a hooked-foot posture and preventing adjustment of the initial angle, thus failing to accommodate drivers of different body types, postures, and dorsiflexion abilities.

[0006] In addition, existing foot pedals often use surface-processed stripes and reinforcing ribs for anti-slip, but their anti-slip performance is not good enough. Utility Model Content

[0007] To address the shortcomings of the aforementioned technologies, this utility model provides a foot pedal structure for excavators.

[0008] To solve the above technical problems, the technical solution adopted by this utility model is: a foot pedal structure for an excavator, including a foot pedal, a foot pedal connecting unit, a trigger connector, and a foot pedal valve connected in sequence from top to bottom;

[0009] The foot pedal is formed by a single forefoot and heel. The main body of the forefoot has several hollow holes, and the two sides of the forefoot are machined with several anti-slip protrusions and threaded connecting seats. The edge of the heel is formed with a reinforcing rib.

[0010] The foot pedal connection unit includes a main body and adjustable connecting wing blocks located on both sides of it and connected by a first connecting rod. These adjustable connecting wing blocks are rotatably adjustable under external force, and the foot pedal is threadedly connected to the foot pedal.

[0011] The trigger connector is rotatably connected to the foot pedal connection unit via the second connecting rod.

[0012] Furthermore, the foot pedal is plate-shaped and the forefoot and heel parts are integrally machined, with perforations spaced apart along the length of the foot pedal in the forefoot area.

[0013] Furthermore, the anti-slip protrusions are cylindrical and formed with a maximum upward protrusion height higher than the maximum upward protrusion height of the threaded connector, which extends downward beyond the surface of the foot pedal.

[0014] Furthermore, the main body includes two spaced-apart main body plates. The lowest end of the main body plate is a trigger extension angle, which extends upward toward the heel side to form an adjustable slope. The two main body plates and the adjustable connecting wing blocks on each side of the main body plates are connected by a first connecting rod.

[0015] Furthermore, the adjustable connecting wing blocks form an integral surface area and a horizontal block area located above the surface area;

[0016] The dough block area has a through hole to accommodate the passage of the first connecting rod, and the free end of the first connecting rod passing through the dough block area is restricted by both rotation and translation through a clamp;

[0017] The horizontal block area extends along the same length as the foot pedal, and the top surface of the horizontal block area has a threaded hole that matches the threaded connection seat.

[0018] Furthermore, the second connecting rod is located diagonally below the first connecting rod and close to the trigger extension angle. The second connecting rod passes through both main body plates, and the free end of the second connecting rod located on the outer side of the main body plate is restricted by both rotation and translation through a clamp.

[0019] Furthermore, the trigger connector is located between the two main body plates, and the trigger connector includes an upper hinge and a lower hinge.

[0020] Furthermore, a cavity is provided at the bottom of the lower hinge, and the cavity abuts against the foot valve.

[0021] A foot pedal structure for excavators features a redesigned shape and structure, eliminating the V-shaped structure that forces the operator to hook their foot, significantly enhancing foot comfort. The adjustable tilt angle achieved through structural design allows for easy adjustment to accommodate operators of different body types, postures, and dorsiflexion abilities, effectively preventing calf cramps and improving the working experience. Furthermore, the foot pedal connection unit is rigidly connected to the foot pedal valve via a trigger connector, solving the problem of traditional free-push travel and achieving faster trigger speeds, resulting in a more responsive operating experience. Attached Figure Description

[0022] Figure 1 This is an exploded view of the present invention.

[0023] Figure 2 This is a schematic diagram of the foot pedal of this utility model.

[0024] Figure 3 This is a schematic diagram of the foot pedal connection unit of this utility model.

[0025] Figure 4 This is a schematic diagram of the trigger connector of this utility model.

[0026] In the picture:

[0027] 10. Foot pedal; 11. Forefoot area; 12. Heel area; 13. Reinforcing rib; 14. Hollowed-out holes; 15. Anti-slip protrusions; 16. Threaded connector;

[0028] 20. Foot pedal connection unit; 21. Main body; 22. Main body plate; 23. First connecting rod; 24. Adjustable connecting wing block; 241. Surface area; 242. Horizontal block area; 25. Clamp; 26. Threaded hole; 27. Second connecting rod; 28. Trigger extension angle; 29. ​​Adjustable inclined plane;

[0029] 30. Trigger connector; 31. Upper hinge; 32. Lower hinge;

[0030] 40. Foot pedal valve. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-4As shown in the figure, the foot pedal structure of the excavator in this embodiment includes a foot pedal 10, a foot pedal connecting unit 20, a trigger connector 30, and a foot pedal valve 40 connected sequentially from top to bottom. In this embodiment, the foot pedal valve 40 is existing technology and can be customized by the supplier. In this embodiment, the foot pedal valve 40 is preferably a one-way foot pedal valve, which, combined with the structural arrangement of the foot pedal 10, foot pedal connecting unit 20, and trigger connector 30, speeds up the operation triggering speed.

[0033] like Figure 1-2 As shown, the foot pedal 10 is formed with an integral forefoot portion 11 and a heel portion 12. The forefoot portion 11 is used to fit the forefoot of the driver's foot, and the heel portion 12 is used to fit the heel of the driver's foot. In order to prevent the driver's foot from slipping, a number of hollow holes 14 are provided on the main body of the forefoot portion 11. A number of anti-slip protrusions 15 and threaded connecting seats 16 are machined on both sides of the forefoot portion 11. A reinforcing rib 13 is formed around the edge of the heel portion 12. The anti-slip protrusions 15 and the reinforcing rib 13 are for anti-slip treatment in their respective areas.

[0034] Preferably, the anti-slip protrusion 15 is cylindrical and formed with its maximum upward protrusion height higher than that of the threaded connector 16, so that there is no structural obstruction between the anti-slip protrusion 15 and the sole of the shoe. The threaded connector 16 extends downward beyond the surface of the foot pedal 10. This design is to enable the threaded connector 16 to be more securely connected to the foot pedal connection unit 20.

[0035] like Figure 2 As shown, the foot pedal 10 is plate-shaped and the forefoot portion 11 and heel portion 12 are integrally machined. Compared with the traditional V-shaped bending structure, the foot pedal 10 of this embodiment is easier to process and has stronger integration. From the design perspective, it does not force the driver to hook their foot.

[0036] like Figure 1 As shown, the perforated holes 14 are spaced apart along the length of the foot pedal 10 in the area of ​​the forefoot 11. In the environment where excavators are used, the soil is full, and the driver's feet will also be covered with soil. Therefore, when the driver steps on the traditional foot pedal, the foot will slip. In addition, the traditional anti-slip ribs are not easy to play an anti-slip role after the soles of the shoes are covered with mud or sticky. The perforated holes 14 in this embodiment can scrape the soil off the soles of the shoes to a certain extent, maintain the function of the perforated holes 14, and are easier to clean. Combined with the anti-slip protrusions 15 and reinforcing ribs 13 in the above-mentioned partitions, the anti-slip ability of the foot pedal 10 is enhanced. Based on this embodiment, those skilled in the art can further enhance the edge anti-slip of the perforated holes 14 as needed, for example, by adding anti-slip ribs to the outer ring of the perforated holes 14.

[0037] The foot pedal connection unit 20 includes a main body 21 and adjustable connecting wing blocks 24 located on both sides of it and connected by a first connecting rod 23. These adjustable connecting wing blocks 24 are rotatably adjustable under external force. The adjustable connecting wing blocks 24 are threadedly connected to the foot pedal 10. The design of this embodiment allows the foot pedal 10 to rotate and adjust with the adjustable connecting wing blocks 24, thereby adjusting the tilt angle of the foot pedal 10 to adapt to drivers of different body types, postures, and dorsiflexion abilities, achieving the best fit and facilitating driver pedaling, thus optimizing the operating experience.

[0038] like Figure 1 , 3 As shown, the main body 21 includes two spaced-apart main body plates 22. The lowest end of the main body plate 22 is a trigger extension angle 28. The trigger extension angle 28 extends upward toward the rear heel 12 to form an adjustable slope 29. The two main body plates 22 and the adjustable connecting wing blocks 24 on each side of the main body plates 22 are connected by a first connecting rod 23.

[0039] Preferably, the adjustable connecting wing block 24 forms an integral surface area 241 and a horizontal block area 242 located above the surface area 241. The surface area 241 has a through hole for the first connecting rod 23 to pass through. The free end of the first connecting rod 23 passing through the surface area 241 is subject to dual restrictions on rotation and translation by a clamp 25. It should be noted that the first connecting rod 23 is not a rotating shaft and does not have the ability to rotate actively. Therefore, to prevent the adjustable connecting wing block 24 from failing to lock, the clamp 25 is a prior art and is a custom-made accessory. However, this embodiment does not limit the dual restrictions on rotation and translation of the first connecting rod 23 to the clamp 25. Those skilled in the art can, according to actual conditions, open an external thread at the free end of the first connecting rod 23 and then tighten the adjustable connecting wing block 24 by a combination of nuts and washers to lock it in place, thereby achieving the purpose of adjusting the angle according to the needs of the driver or operator.

[0040] Preferably, the horizontal block area 242 extends in the same length direction as the foot pedal 10, and the top surface of the horizontal block area 242 is provided with a threaded hole 26 that is adapted to the threaded connecting seat 16. Then the foot pedal 10 can be connected to the horizontal block area 242. Since the threaded connecting seat 16 extends downward, the foot pedal 10 avoids the main body plate 22. Those skilled in the art can increase or decrease the length of the threaded connecting seat 16 extending downward according to the actual tilt angle adjustment range requirements of the foot pedal 10.

[0041] The second connecting rod 27 is located diagonally below the first connecting rod 23 and close to the trigger extension angle 28. The second connecting rod 27 passes through the two main body plates 22, and the free end of the second connecting rod 27 located on the outer side of the main body plate 22 is restricted by the clamp 25 for both rotation and translation, similar to the case of the first connecting rod 23. The function of the second connecting rod 27 is to limit the tilt angle of the trigger connector 30. Those skilled in the art can, according to actual conditions, open an external thread at the free end of the second connecting rod 27, and then tighten the trigger connector 30 with a combination of nuts and washers to lock it in place, changing the overall orientation of the foot pedal connection unit 20 to further adapt to the driver's operation. When the driver presses the foot pedal 10, the foot pedal valve 40 is triggered at the same time through the physical connection of the foot pedal connection unit 20 and the trigger connector 30. There is no traditional free-press stroke, the triggering speed is faster, and the operating experience is more responsive.

[0042] The trigger connector 30 is rotatably connected to the foot pedal connection unit 20 via the second connecting rod 27. The trigger connector 30 is located between the two main body plates 22. The trigger connector 30 includes an upper hinge 31 and a lower hinge 32, which are hinged together by the second connecting rod 27.

[0043] The bottom of the lower hinge 32 has a cavity that abuts against the foot valve 40. Since the foot valve 40 produced by different manufacturers has different models and structures, the shape of the cavity of the lower hinge 32 can be adapted to the contact of the foot valve 40.

[0044] This application discloses a foot pedal structure for an excavator, which redesigns the shape and structure of the foot pedal, eliminating the V-shaped structure that forces the operator to hook their foot, thus greatly enhancing the foot comfort of the foot pedal; through the adjustable tilt angle design achieved by the structural cooperation, the foot pedal can be easily adjusted to adapt to operators of different body types, postures, and dorsiflexion abilities, effectively preventing calf cramps and thus improving the working experience; in addition, the foot pedal connection unit is rigidly connected to the foot pedal valve through a trigger connector, solving the problem of traditional free pedal stroke, achieving a faster trigger speed, and making the operating experience more sensitive.

[0045] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A foot pedal structure for an excavator, characterized in that: It includes a foot pedal (10), a foot pedal connecting unit (20), a trigger connector (30), and a foot pedal valve (40) connected sequentially from top to bottom; The foot pedal (10) is formed with an integral forefoot part (11) and heel part (12). The forefoot part (11) has several hollow holes (14) on its main body. Several anti-slip protrusions (15) and threaded connecting seats (16) are processed on both sides of the forefoot part (11). A reinforcing rib (13) is formed around the edge of the heel part (12). The foot pedal connection unit (20) includes a main body (21) and adjustable connecting wing blocks (24) located on both sides of it and connected by a first connecting rod (23) to be rotatably adjustable under external force. The adjustable connecting wing blocks (24) are threadedly connected to the foot pedal (10). The trigger connector (30) is rotatably connected to the foot pedal connector (20) via the second connecting rod (27).

2. The foot pedal structure of the excavator according to claim 1, characterized in that: The foot pedal (10) is plate-shaped and is integrally formed with a forefoot part (11) and a heel part (12) that are divided into sections. Hollow holes (14) are spaced apart in the forefoot part (11) area along the length extension direction of the foot pedal (10).

3. The foot pedal structure of the excavator according to claim 1, characterized in that: The anti-slip protrusion (15) is cylindrical and is formed such that its maximum upward protrusion height is higher than that of the threaded connector (16), which extends downward beyond the surface of the foot pedal (10).

4. The foot pedal structure of the excavator according to claim 1, characterized in that: The main body (21) includes two spaced-apart main body plates (22). The lowest end of the main body plate (22) is a trigger extension angle (28). The trigger extension angle (28) extends upward toward the heel part (12) to form an adjustable slope (29). The two main body plates (22) and the adjustable connecting wing blocks (24) on each side of the main body plates (22) are connected by a first connecting rod (23).

5. The foot pedal structure of the excavator according to claim 4, characterized in that: The adjustable connecting wing block (24) forms an integral surface area (241) and a horizontal block area (242) located above the surface area (241); The surface area (241) has a through hole for accommodating the first connecting rod (23) to pass through. The free end of the first connecting rod (23) passing through the surface area (241) is restricted by a clamp (25) for both rotation and translation. The horizontal block area (242) extends along the same length as the foot pedal (10), and the top surface of the horizontal block area (242) is provided with a threaded hole (26) that is compatible with the threaded connection seat (16).

6. The foot pedal structure of the excavator according to claim 4, characterized in that: The second connecting rod (27) is located diagonally below the first connecting rod (23) and close to the trigger extension angle (28). The second connecting rod (27) passes through the two main body plates (22), and the free end of the second connecting rod (27) located on the outer side of the main body plate (22) is restricted by the clamp (25) for both rotation and translation.

7. The foot pedal structure of the excavator according to claim 6, characterized in that: The trigger connector (30) is located between the two main body plates (22), and the trigger connector (30) includes an upper hinge (31) and a lower hinge (32).

8. The foot pedal structure of the excavator according to claim 7, characterized in that: The bottom of the lower hinge (32) has a cavity, which abuts against the foot valve (40).

Images