An armrest control box for an excavator

By designing the fixing seat, fixing ring, handrail box and movable cover of the excavator handrail control box, and using components such as rotating motors and airbags, the problems of the excavator driver falling and children's accidental touch are solved, and safety and comfort are improved.

CN116770921BActive Publication Date: 2025-08-12XUZHOU BOHUI ELECTRONIC CONTROL TECH CO LTD
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Patent Information

Application Number
CN202310898057.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-21
Publication Date
2025-08-12
Estimated Expiration
2043-07-21

AI Technical Summary

Technical Problem

The existing excavator handrail box has a single function, and the driver has a risk of falling when operating standing, and children may accidentally touch the joystick, which may lead to safety risks.

Method used

An excavator handrail control box including a fixed seat, a fixing ring, a handrail case and a movable cover is designed to block the driver by driving the fixed ring through a rotating motor, airbags provide comfort and safety, and electric sliders and telescopic rods achieve multi-functional operation.

Benefits of technology

Improves driver operation safety, prevents fall and mistouching, increases comfort and safety, and adapts to different body shapes and operation needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of excavator armrest boxes, and specifically discloses an armrest control box for an excavator, comprising an excavator body, wherein both sides of the excavator body are movably mounted with a fixed seat, a fixed ring is rotatably mounted inside the fixed seat, an armrest box is movably mounted inside the fixed ring, a movable cover is movably mounted inside the armrest box, a fixing mechanism is provided inside the movable cover, and the fixed seat is provided with a support mechanism below the fixed ring. The present invention is provided with a first rotating motor, a fixed seat, a fixed ring and an armrest box. When the driver needs to stand on the excavator body to operate, the fixed seat and the fixed ring are rotated to the sides of the excavator body by the first rotating motor, thereby blocking the standing driver and preventing the driver from falling from the sides of the excavator body, thereby improving the safety of the device. The rotated fixed ring blocks the branches on both sides of the excavator body and prevents the branches and plant trunks from affecting the driver.
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Description

Technical Field

[0001] The present invention relates to the technical field of excavator armrest boxes, in particular to an excavator armrest control box. Background Art

[0002] The armrest is an accessory placed next to the seat. It consists of an upper and lower housing. The vehicle's ignition switch, control switch, entertainment system, and air conditioning panel are all mounted on the armrest. The pilot handle for operating the excavator's rotation, digging, and loading and unloading is also mounted above the armrest. There's also a control guide rod on the side bottom of the armrest.

[0003] The current excavator armrest box has a single function and most of them only have the function of placing water cups and simple storage items. In addition, during the actual use of small excavators, the driver will have to stand and operate them, which poses a risk of falling. After the driver gets off the vehicle, if the excavator is not turned off, if there are children on the scene, there is a possibility that the children will accidentally touch the excavator's joystick out of curiosity, increasing safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an armrest control box for an excavator.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An armrest control box for an excavator comprises an excavator body, wherein fixed seats are movably mounted on both sides of the excavator body, a fixed ring is rotatably mounted inside the fixed seat, an armrest box is movably mounted inside the fixed ring, a movable cover is movably mounted inside the armrest box, a fixing mechanism is provided inside the movable cover, and the fixed seat is provided with a supporting mechanism below the fixed ring.

[0007] Preferably, a second slot is provided under the excavator body seat, a shift rod is installed inside the second slot, a return spring is installed inside the second slot, and the shift rod is inside the return spring, the bottom end of the return spring is connected to the top of the excavator body, and a contact switch is movably embedded and installed on the top of the excavator body just below the shift rod.

[0008] Preferably, a first rotary motor is embedded and installed on both sides of the excavator body, an output end of the first rotary motor is away from the excavator body, and the output end of the first rotary motor is connected to one side of the fixing seat.

[0009] Preferably, a fixing rod is connected between the inner walls at both ends of the fixing seat, and the fixing rod movably passes through one side of the bottom of the fixing ring, and the fixing ring can be rotated on the fixing seat through the fixing rod.

[0010] Preferably, the support mechanism includes a first slot and an electric telescopic rod, a plurality of first slots are evenly distributed through the bottom of the fixing seat along the length direction, a plurality of electric telescopic rods are evenly installed through the bottom of the fixing seat along the length direction, and the telescopic end of the electric telescopic rod movably passes through the first slot and abuts against the bottom end of the fixing ring.

[0011] Preferably, both outer walls on both sides of the armrest box in contact with the fixed ring are provided with a first sliding groove horizontally along the end wall direction, and a first electric slider is slidably installed inside the first sliding groove, and the first electric slider is connected to the inner wall of the fixed ring on the side close to the fixed ring.

[0012] Preferably, a second slide groove is vertically opened on the outer walls of both ends of the movable cover, and a second electric slider is slidably installed inside the second slide groove, and the second electric slider is connected to the inner wall of the armrest box on the side close to the armrest box.

[0013] Preferably, the fixing mechanism includes an airbag, and the airbag is detachably mounted on an inner wall of one side of the movable cover, and the airbag can extend parallel to the outer side of the movable cover.

[0014] Preferably, a plurality of plug-in slots are evenly and horizontally opened on an inner wall of one side of the movable cover along the length direction, and rubber blocks are installed inside the plug-in slots, and the side of the rubber block close to the airbag is connected to the airbag.

[0015] Preferably, fixing blocks are installed on both sides of the excavator body, and the top of the fixing block abuts against the bottom of the end of the fixing seat away from the first rotating motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention is provided with a first rotating motor, a fixing seat, a fixing ring and an armrest box. When the driver needs to stand on the excavator body to operate, the fixing seat and the fixing ring are rotated to the two sides of the excavator body by the first rotating motor, which blocks the standing driver and prevents the driver from falling from the two sides of the excavator body, thereby improving the safety of the device. The rotated fixing ring blocks the branches on both sides of the excavator body to prevent the branches and plant branches from affecting the driver, distracting the driver during driving and increasing safety hazards. When the driver needs to get off the vehicle during work, the fixing ring rotates to the operating table of the excavator body to block the gear lever on the operating table to prevent children at the work site from directly climbing onto the excavator body out of curiosity and touching the gear lever, thereby causing safety hazards.

[0018] In the present invention, a fixed rod and an electric telescopic rod are provided. When the electric telescopic rod no longer supports the fixed ring, the fixed ring is rotated to the same level as the seat through the fixed rod, and the driver can lie flat on the fixed ring and the seat to rest.

[0019] The present invention is provided with airbags and rubber blocks. When the airbags extend inside the armrest box, the items placed inside the armrest box can be fixed to prevent the items placed in the armrest box from being damaged when the excavator body shakes forward. The airbags on both sides of the excavator body extend toward the driver. The two airbags can wrap the driver. The airbags can relieve the left and right shaking force on the driver during driving, making the driver drive more comfortably. The airbags wrap the driver, which can also prevent the driver from suddenly falling off the excavator body due to a sudden illness. When the driver lies flat on the fixed ring and the seat, the movable cover extends outward and the airbags extend outward. The airbags can act as a pillow, making the driver more comfortable when lying flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the excavator body of the present invention;

[0021] Figure 2 This is a schematic diagram of the position distribution structure of the first rotating motor and the contact switch of the present invention;

[0022] Figure 3 It is a schematic diagram of the seat bottom structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the fixing seat of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection structure between the fixing seat and the fixing ring of the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the armrest box of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure between the movable cover and the airbag of the present invention;

[0027] Figure 8 It is a schematic diagram of the internal structure of the movable cover of the present invention.

[0028] In the figure: 1. Excavator body; 2. Fixed seat; 3. Fixed ring; 4. Armrest box; 5. First rotating motor; 6. Fixed rod; 7. First slot; 8. Electric telescopic rod; 9. First slide; 10. First electric slider; 11. Movable cover; 12. Second slide; 13. Second electric slider; 14. Airbag; 15. Plug slot; 16. Rubber block; 17. Fixed block; 18. Contact switch; 19. Second slot; 20. Return spring; 21. Push rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figures 1-8 An armrest control box for an excavator includes an excavator body 1, with fixed seats 2 movably installed on both sides of the excavator body 1, a fixed ring 3 rotatably installed inside the fixed seat 2, an armrest box 4 movably installed inside the fixed ring 3, a movable cover 11 movably installed inside the armrest box 4, a fixing mechanism is provided inside the movable cover 11, and the fixed seat 2 is provided with a supporting mechanism below the fixed ring 3. By rotating the fixing seat 2, the fixing ring 3 can change its state, and the fixing ring 3 can block the driver on the excavator body 1 after rotation, preventing the driver from falling from both sides of the excavator body 1, thereby improving the safety of the device. The fixed ring 3 can block the branches on both sides of the excavator body 1 after rotation to prevent branches and plant branches from affecting the driver, causing the driver to be distracted during driving and increasing safety hazards. When the driver needs to get off the vehicle during work, the fixing ring 3 rotates to the operating table of the excavator body 1 to block the gear lever on the operating table to prevent children at the work site from climbing up the excavator body 1 out of curiosity and touching the gear lever, thereby causing safety hazards. The movable cover 11 moves up and down in the armrest box 4, so that people of different body shapes can adjust the armrest box 4 to the most comfortable state when using this device.

[0031] As a technical optimization solution of the present invention, a second slot 19 is provided below the seat of the excavator body 1. A lever 21 is mounted within the second slot 19. A return spring 20 is mounted within the second slot 19. The lever 21 is located within the return spring 20. The bottom end of the return spring 20 is connected to the top of the excavator body 1. A contact switch 18 is movably embedded in the top of the excavator body 1 directly below the lever 21. When the driver needs to stand on the excavator body 1 to operate the excavator body 1, the lever 21 no longer contacts the contact switch 18 due to the elastic action of the return spring 20. At this time, the first rotary motor 5 starts to start, driving the fixed seat 2 to rotate toward the operating platform of the excavator body 1, so that the fixed ring 3 blocks both sides of the operating platform of the excavator body 1, providing a left and right blocking effect for the driver, preventing the driver from losing his balance and falling off the excavator body 1 due to the complex terrain and the left and right shaking of the excavator body 1 during operation.

[0032] As a technical optimization solution of the present invention, a first rotary motor 5 is embedded and mounted on both sides of the excavator body 1. The output end of the first rotary motor 5 is remote from the excavator body 1 and connected to one side of the fixed base 2. The rotation of the first rotary motor 5 drives the fixed base 2 to rotate, which has the advantage of simple operation.

[0033] As a technical optimization solution of the present invention, a fixing rod 6 is connected between the inner walls of the two ends of the fixing base 2. The fixing rod 6 movably passes through the bottom side of the fixing ring 3. The fixing ring 3 can rotate on the fixing base 2 through the fixing rod 6. The fixing ring 3 can rotate around the fixing rod 6, making the subsequent operation of the device smoother and improving the convenience of use of the device.

[0034] As a technical optimization solution of the present invention, the support mechanism includes a first slot 7 and an electric telescopic rod 8. A plurality of first slots 7 are uniformly formed along the length of the bottom of the fixing base 2. A plurality of electric telescopic rods 8 are uniformly mounted along the length of the bottom of the fixing base 2. The telescopic ends of the electric telescopic rods 8 are movable through the first slots 7 to abut against the bottom end of the fixing ring 3. When the telescopic ends of the electric telescopic rods 8 retract, the electric telescopic rods 8 no longer support the fixing ring 3. At this point, the fixing ring 3 can be lowered, and ultimately the fixing ring 3 and the top of the excavator body 1 are in a horizontal state, allowing the operator to lie flat on the fixing ring 3 and the seat to rest.

[0035] As a technical optimization solution of the present invention, the outer walls on both sides of the armrest box 4 that are in contact with the fixed ring 3 are both provided with a first slide groove 9 horizontally along the end wall direction, and a first electric slider 10 is slidably installed inside the first slide groove 9, and the side of the first electric slider 10 close to the fixed ring 3 is connected to the inner wall of the fixed ring 3. The first electric slider 10 is fixedly installed on the inner wall of the fixed ring 3, and the armrest box 4 is movably placed inside the fixed ring 3. The first slide groove 9 is provided at the position where the armrest box 4 contacts the fixed ring 3, and the first electric slider 10 slides in the first slide groove 9. Since the position of the first electric slider 10 is fixed and the armrest box 4 is movable, when the first electric slider 10 slides in the first slide groove 9, the armrest box 4 can move in the fixed ring 3. When the armrest box 4 moves to the top and is flush with the top of the fixed ring 3, the driver can lie flat.

[0036] As a technical optimization solution of the present invention, second slide grooves 12 are vertically opened on the outer walls at both ends of the movable cover 11, and a second electric slider 13 is slidably installed inside the second slide groove 12. The second electric slider 13 is connected to the inner wall of the armrest box 4 on the side close to the armrest box 4. The movable cover 11 is movably placed inside the armrest box 4, through the second electric slider 13 fixedly installed on the inner end wall of the armrest box 4, and the second electric slider 13 is slidably installed inside the second slide groove 12. Therefore, when the second electric slider 13 slides in the second slide groove 12, since the position of the second electric slider 13 is fixed, when the second electric slider 13 slides, the movable cover 11 can slide up and down inside the armrest box 4, thereby achieving different usage effects.

[0037] As a technical optimization solution of the present invention, the fixing mechanism includes an airbag 14. The airbag 14 is detachably mounted on the inner wall of one side of the movable cover 11, and the airbag 14 can extend parallel to the outside of the movable cover 11. The second electric slider 13 slides in the second slide groove 12, causing the movable cover 11 to move upward inside the armrest box 4, exposing the opening of the movable cover 11. At this time, the staff uses the air pump to inflate the airbag 14 through the operating panel. At this time, the airbag 14 can extend outward through the opening of the movable cover 11. When the airbag 14 extends inside the armrest box 4, it can fix the items placed inside the armrest box 4, preventing the items placed in the armrest box 4 from being damaged during the forward shaking of the excavator body 1.

[0038] When the opening of the movable cover 11 is exposed, the airbags 14 on both sides of the excavator body 1 extend toward the driver. The two airbags 14 can wrap the driver. The airbags 14 can relieve the left and right shaking force that the driver is subjected to during driving, making the driver drive more comfortably. The wrapping of the driver by the airbags 14 can also prevent the driver from suddenly falling ill and falling directly from the excavator body 1. When the driver lies flat on the fixed ring 3 and the seat, the movable cover 11 extends outward and the airbags 14 extend outward. The airbags 14 can act as a pillow, making the driver more comfortable lying flat.

[0039] As a technical optimization solution of the present invention, a plurality of insertion slots 15 are uniformly and horizontally formed along the length of the inner wall of one side of the movable cover 11. Rubber blocks 16 are inserted and installed in the insertion slots 15. The side of the rubber block 16 near the airbag 14 is connected to the airbag 14. If the airbag 14 is damaged, the operator can simply pull the airbag 14 outward. When the rubber block 16 is free of the insertion slot 15, the airbag 14 can be removed. This greatly simplifies the maintenance of the airbag 14 and increases the convenience of use of the device.

[0040] As a technical optimization solution of the present invention, fixing blocks 17 are mounted on both sides of the excavator body 1. The top ends of the fixing blocks 17 abut against the bottom end of the fixing base 2 away from the first rotary motor 5. During daily use, the fixing blocks 17 support the fixing base 2, extending the service life of the first rotary motor 5.

[0041] When the present invention is in use, the airbag 14 is a corrugated airbag and is equipped with an air pump for inflating it. The air outlet of the airbag 14 is controlled by a solenoid valve. The air pump and the solenoid valve of the air outlet can be controlled by the driver through an external control panel. The excavator body 1 is a small excavator. When a worker sits on the seat of the excavator body 1, the driver's own weight presses the return spring 20 downward, causing the lever 21 to contact the contact switch 18. At this time, the first rotary motor 5 is not started. At this time, the position state of the fixed seat 2 is as follows. Figure 1 As shown, when the driver needs to stand on the excavator body 1 to drive the excavator body 1, under the elastic action of the return spring 20, the lever 21 no longer contacts the contact switch 18. At this time, the first rotary motor 5 starts to start, driving the fixed seat 2 to rotate toward the operating table of the excavator body 1, so that the fixed ring 3 blocks both sides of the operating table of the excavator body 1, providing the driver with a left and right blocking effect, preventing the driver from falling from the excavator body 1 due to the complex terrain and the shaking of the excavator body 1 during operation.

[0042] The lever 21 and the contact switch 18 are a way to control the first rotating motor 5, and the staff can manually turn off the control effect of the contact switch 18 on the first rotating motor 5. There is also another manual switch on the device to control the first rotating motor 5. When the device is used for construction in agricultural places such as orchards, the driver will inevitably be disturbed by tree branches and other plant branches during the forward movement of the excavator body 1. At this time, the driver starts the first rotating motor 5 through the manual switch, causing the fixed seat 2 to start rotating. At this time, the fixed ring 3 can block the tree branches and plant branches on both sides of the driver during the forward movement of the excavator body 1 to prevent the tree branches and plant branches from affecting the driver, causing the driver to be distracted during driving and increasing safety hazards.

[0043] When the driver needs to get off the vehicle during work, the driver first turns off the control effect of the contact switch 18 on the first rotary motor 5. After getting off the vehicle, the driver starts the first rotary motor 5 through the manual switch. At this time, the fixed ring 3 rotates to the operating table of the excavator body 1, blocking the gear lever on the operating table to prevent children at the work site from climbing onto the excavator body 1 out of curiosity and touching the gear lever, which would cause a safety hazard.

[0044] When the driver controls the excavator body 1 to move forward, since the road condition is not very stable, the second electric slider 13 slides in the second slide groove 12, causing the movable cover 11 to move upward inside the armrest box 4, and then the airbag 14 begins to inflate and extend outward. The airbags 14 on both sides of the excavator body 1 extend toward the driver. The two airbags 14 can wrap the driver. The airbags 14 can alleviate the left and right shaking force exerted on the driver during driving, making the driver's driving more comfortable. The airbags 14 wrapping the driver can also prevent the driver from suddenly falling ill and falling directly from the excavator body 1. When the airbags 14 extend inside the armrest box 4, the items placed inside the armrest box 4 can be fixed to prevent the items placed in the armrest box 4 from being damaged during the forward shaking of the excavator body 1.

[0045] When the driver needs to take a rest, the telescopic end of the electric telescopic rod 8 retracts. At this time, the electric telescopic rod 8 no longer supports the fixing ring 3, and the fixing ring 3 can be rotated downward, and finally the fixing ring 3 and the seat of the excavator body 1 are in a horizontal state. At this time, the first electric slider 10 slides in the first slide groove 9, so that the armrest box 4 moves downward inside the fixing ring 3, and finally the top of the armrest box 4 is level with the top of the fixing ring 3 in this state. At this time, the driver can lie flat on the flat plate composed of the seat and the fixing ring 3 to rest. At this time, the second electric slider 13 slides in the second slide groove 12, so that the movable cover 11 moves inside the armrest box 4, and moves to a state where the opening of the movable cover 11 is completely exposed, and in this state, the opening of the movable cover 11 faces upward, and the staff controls the air pump to inflate the airbag 14, and the airbag 14 can extend outward through the opening of the movable cover 11. When the top of the airbag 14 extends to a suitable position, the airbag 14 can act as a pillow, making the driver lie flat more comfortable.

[0046] When the device is working in the orchard, after the fixed ring 3 is laid flat, the movable cover 11 extends outward. At this time, when the airbag 14 does not extend outward, the armrest box 4 achieves the effect of expansion. At this time, the staff can put the picked fruits into the armrest box 4 for storage. When the first rotating motor 5 rotates, the fruits in the armrest box 4 can also be directly poured out.

[0047] When the airbag 14 is damaged, the staff can directly pull the airbag 14 outward. When the rubber block 16 is out of the insertion slot 15, the airbag 14 can be taken out, which greatly increases the ease of repair of the airbag 14 and increases the convenience of use of the device.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An armrest control box for an excavator, comprising an excavator body (1), characterized in that: A fixing seat (2) is movably mounted on both sides of the excavator body (1); a fixing ring (3) is rotatably mounted inside the fixing seat (2); an armrest box (4) is movably mounted inside the fixing ring (3); a movable cover (11) is movably mounted inside the armrest box (4); a fixing mechanism is provided inside the movable cover (11); and a supporting mechanism is provided on the fixing seat (2) below the fixing ring (3); A second slot (19) is provided below the seat of the excavator body (1), a shift lever (21) is installed on the top of the second slot (19), a return spring (20) is installed on the top of the second slot (19), and the shift lever (21) is located inside the return spring (20), the bottom end of the return spring (20) is connected to the top of the excavator body (1), and a contact switch (18) is movably embedded and installed on the top of the excavator body (1) just below the shift lever (21); A first rotating motor (5) is embedded and installed on both sides of the excavator body (1), the output end of the first rotating motor (5) is away from the excavator body (1), and the output end of the first rotating motor (5) is connected to one side of the fixing seat (2); A fixing rod (6) is connected between the inner walls of both ends of the fixing seat (2), and the fixing rod (6) movably passes through one side of the bottom of the fixing ring (3), and the fixing ring (3) rotates on the fixing seat (2) through the fixing rod (6); The support mechanism comprises a first slot (7) and an electric telescopic rod (8); a plurality of first slots (7) are uniformly provided on the bottom of the fixing seat (2) along the length direction; a plurality of electric telescopic rods (8) are uniformly installed on the bottom of the fixing seat (2) along the length direction; the telescopic ends of the electric telescopic rods (8) movably pass through the first slot (7) and abut against the bottom end of the fixing ring (3); The fixing mechanism includes an airbag (14), and the airbag (14) is detachably mounted on an inner wall of one side of the movable cover (11), and the airbag (14) can extend parallel to the outer side of the movable cover (11); A plurality of plug-in slots (15) are evenly and horizontally provided on an inner wall of one side of the movable cover (11) along the length direction. A rubber block (16) is inserted and installed inside the plug-in slot (15). The rubber block (16) is connected to the airbag (14) on a side close to the airbag (14).

2. The armrest control box of an excavator according to claim 1, characterized in that: The outer walls on both sides of the armrest box (4) in contact with the fixed ring (3) are both provided with a first sliding groove (9) horizontally along the end wall direction, and a first electric slider (10) is slidably installed inside the first sliding groove (9), and the side of the first electric slider (10) close to the fixed ring (3) is connected to the inner wall of the fixed ring (3).

3. The armrest control box of an excavator according to claim 1, characterized in that: A second slide groove (12) is vertically opened on the outer walls of both ends of the movable cover (11), and a second electric slider (13) is slidably installed inside the second slide groove (12). The second electric slider (13) is connected to the inner wall of the armrest box (4) on the side close to the armrest box (4).

4. The armrest control box of an excavator according to claim 1, characterized in that: Fixed blocks (17) are installed on both sides of the excavator body (1), and the top of the fixed block (17) abuts against the bottom of the end of the fixing seat (2) away from the first rotating motor (5).

Citation Information

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