A loader operation control handle

Abstract

The present invention relates to the technical field of operating handles, and specifically discloses a loader operation control handle, which includes a base. A fixed rod is fixedly connected to the middle part of the top of the base. A round bead is rotatably connected to the top of the fixed rod. A small rod is fixedly connected to the top of the round bead. A pressing plate is fixedly connected to the top of the small rod. A square frame is fixedly connected to the middle part of the top of the pressing plate. A hand-held rod is fixedly connected to the top of the square frame. Touching parts are arranged around the top of the base, and a limiting component is arranged above the base. Through the cooperation of the above structures, it can limit the hand-held rod, avoid misoperation and cause incorrect actions of the loader. Moreover, when the ejector rod presses against the inner wall of the slideway, it can play a role in limiting. The friction between the ejector rod and the slideway offsets part of the elastic force of the spring in the touching part, so that when operating the pilot handle, the pressure on the operator's hand is reduced, the operator is not easily fatigued under long-term work, and the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of operating handles, and in particular to an operating control handle for a loader. Background Art

[0002] A loader is a construction machinery with high operation efficiency and is widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It mainly consists of an engine, a chassis (including a running mechanism), and a working device. The shoveling and loading operations of the loader are achieved through the movement of its working device, including the coordinated movement of components such as a bucket, a boom, a connecting rod, a swing arm, and a tilt cylinder. These components work together to enable the loader to efficiently complete various earthwork construction tasks.

[0003] The handle of a loader usually adopts a pilot handle. When the handle is in the neutral state, the pilot handle does not trigger the transmission of any action instructions, which means that the working device of the loader (such as the bucket, boom, etc.) will maintain its current state and will not move or change. When the handle rotates, it will squeeze the contact part at the corresponding position, thereby enabling the loader to perform corresponding steps. Most existing loaders do not have a structure to limit the movement of the handle. During operation, it may happen that the handle is accidentally touched, causing the loader to perform incorrect actions, which in turn affects the normal progress of the loader construction. Summary of the Invention

[0004] The purpose of the present invention is to provide an operating control handle for a loader, which can limit the handheld rod to avoid incorrect actions of the loader caused by accidental touch. Moreover, when the ejector rod presses against the inner wall of the slideway, it can play a role in limiting. The friction between the ejector rod and the slideway offsets part of the elastic force of the spring in the touch part, so that when operating the pilot handle, the pressure on the operator's hand is reduced, making it difficult for the operator to get tired during long-term work and improving work efficiency, so as to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A loader operation control handle, including a base, a fixed rod is fixedly connected to the middle part of the top of the base, a round bead is rotatably connected to the top of the fixed rod, a small rod is fixedly connected to the top of the round bead, a pressing plate is fixedly connected to the top of the small rod, a square frame is fixedly connected to the middle part of the top of the pressing plate, a hand-held rod is fixedly connected to the top of the square frame, a touch part is arranged around the top of the base, a limiting component is arranged above the base, the limiting component includes a sliding frame slidably connected to the left side of the hand-held rod, a horizontal groove is opened inside the hand-held rod, a vertical groove is opened below the right side of the horizontal groove inside the hand-held rod, the horizontal groove is communicated with the vertical groove, a first piston is rotatably connected to the right side of the sliding frame, a first spring is fixedly connected between the first piston and the sliding frame, and the limiting component further includes a second piston slidably connected inside the vertical groove.

[0006] Preferably, the limiting component further includes a round rod slidably connected to the bottom of the hand-held rod, the bottom of the round rod extends into the inside of the square frame and is fixedly connected with a limiting block, the bottom of the limiting block is inclined, a top rod is slidably connected to the periphery of the square frame, an elastic film is fixedly connected between the top rod and the square frame, a transmission component for driving the round rod to move is arranged below the second piston, a limiting frame is fixedly connected to the top of the base, and a slideway is opened inside the limiting frame.

[0007] Preferably, a rubber pad is fixedly connected to the inside of the slideway, the outer side of the first piston is attached to the horizontal groove, and the outer side of the second piston is attached to the vertical groove.

[0008] Preferably, a dust cover is fixedly connected to the top of the base, and the top of the dust cover is fixedly connected to the square frame.

[0009] Preferably, the transmission component includes a long rod fixedly connected to the bottom of the second piston, a rotating plate is rotatably connected to the bottom of the long rod, the left part of the rotating plate is rotatably connected to the hand-held rod, a chute is opened on the left part of the rotating plate to the left of the connection part between the rotating plate and the hand-held rod, a slider is slidably connected to the inside of the chute, a lifting rod is rotatably connected to the bottom of the slider, a cross plate is fixedly connected to the bottom of the lifting rod, the outer side of the lifting rod is slidably connected to the hand-held rod, and the bottom of the cross plate is fixedly connected to the round rod.

[0010] Preferably, a bent frame is fixedly connected to the left side of the top of the hand-held rod, an L-shaped groove is opened on the top left side of the sliding frame, and the end of the bent frame away from the hand-held rod is inserted into the inside of the L-shaped groove.

[0011] Preferably, the actuating part includes a contact head slidably connected to the periphery of the top of the base. A lubricating assembly is arranged inside the base. The lubricating assembly includes a groove formed inside the base. The lubricating assembly further includes a small plate slidably connected to the side of the contact head ring. A second spring is fixedly connected between the upper end of the small plate and the contact head. A bent pipe is fixedly connected below the small plate. One end of the bent pipe away from the small plate extends into the inside of the groove and is fixedly connected with a circular plate. A corrugated bladder is fixedly connected inside the groove. The outer side of the bent pipe is slidably connected with the base. A storage groove is formed at the upper edge of the inner part of the base. A feed pipe is fixedly inserted between the storage groove and the corrugated bladder. A discharge pipe is fixedly inserted on one side of the corrugated bladder close to the actuating part.

[0012] Preferably, check valves are installed inside both the feed pipe and the discharge pipe.

[0013] Preferably, a surrounding pipe is fixedly inserted at the top of the storage groove.

[0014] Preferably, a blocking assembly is arranged inside the surrounding pipe. The blocking assembly includes an elastic sheet fixedly connected inside the surrounding pipe. A flexible film is fixedly connected to the outer wall of the elastic sheet. One side of the flexible film close to the surrounding pipe is fixedly connected with the surrounding pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Through the action of the limiting assembly, the handheld rod can be limited to avoid misoperation and cause incorrect actions of the loader. And when the ejector rod presses against the inner wall of the slideway, it can play a limiting role. The friction between the ejector rod and the slideway offsets part of the elastic force of the spring inside the actuating part. Thus, when operating the pilot handle, the pressure on the operator's hand is reduced, making the operator not easily fatigued during long-term work and improving work efficiency.

[0017] 2. Through the action of the transmission assembly, since the right side of the connection between the rotating plate and the handheld rod is longer and the left side part is shorter, it is similar to a labor-saving lever. In this way, the force required for the user to squeeze the sliding frame by hand can be reduced, further making the operator not easily fatigued during long-term work and improving work efficiency.

[0018] 3. Through the action of the bent frame and the L-shaped groove, when continuous adjustment is required and the adjustment working area is switched, the sliding frame does not need to be pressed for a long time, further making the operator not easily fatigued during long-term work and improving work efficiency. Description of the Drawings

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is the overall structural view of the present invention;

[0021] Figure 2 It is a schematic diagram of a half-section structure of the dust cover of the present invention;

[0022] Figure 3 It is a schematic diagram of a half-section structure of a frame of the present invention;

[0023] Figure 4 It is a schematic diagram of a half-section structure of the hand-held rod of the present invention;

[0024] Figure 5 It is a schematic diagram of a half-section structure of the limiting frame of the present invention;

[0025] Figure 6 It is a partial half-section structural schematic diagram of the base of the present invention;

[0026] Figure 7 It is a partial half-section structure schematic diagram of the surrounding tube of the present invention.

[0027] Description of reference numerals:

[0028] 1. Base; 2. Fixed rod; 3. Round ball; 4. Small rod; 5. Press plate; 6. Limiting assembly; 61. Sliding frame; 62. First piston; 63. First spring; 64. Second piston; 65. Round rod; 66. Limit block; 67. Push rod; 68. Elastic membrane; 7. Transmission assembly; 71. Long rod; 72. Turntable; 73. Sliding block; 74. Lifting rod; 75. Cross plate; 76. Slide groove; 8. Lubricating assembly; 81. Groove; 82. Small plate; 83. First Two springs; 84, bent pipe; 85, circular plate; 86, storage tank; 87, inlet pipe; 88, outlet pipe; 89, check valve; 810, surrounding pipe; 811, bellows; 9, blocking assembly; 91, elastic sheet; 92, flexible membrane; 10, square frame; 11, hand-held rod; 12, triggering part; 121, contact; 13, horizontal groove; 14, vertical groove; 15, limiting frame; 16, slideway; 17, rubber pad; 18, dust cover; 19, bent frame; 20, L-shaped groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a loader operation control handle, including a base 1. The middle part of the top of the base 1 is fixedly connected with a fixed rod 2. The top of the fixed rod 2 is rotatably connected with a ball 3. The top of the ball 3 is fixedly connected with a small rod 4. The top of the small rod 4 is fixedly connected with a pressing plate 5. The middle part of the top of the pressing plate 5 is fixedly connected with a square frame 10. The top of the square frame 10 is fixedly connected with a hand-held rod 11. The periphery of the top of the base 1 is provided with a touch part 12. A limiting component 6 is arranged above the base 1. The limiting component 6 includes a sliding frame 61 slidably connected to the left side of the hand-held rod 11. A horizontal groove 13 is opened inside the hand-held rod 11. A vertical groove 14 is opened below the right side of the horizontal groove 13 inside the hand-held rod 11. The horizontal groove 13 communicates with the vertical groove 14. The right side of the sliding frame 61 is rotatably connected with a first piston 62. A first spring 63 is fixedly connected between the first piston 62 and the sliding frame 61. The limiting component 6 further includes a second piston 64 slidably connected inside the vertical groove 14. The limiting component 6 further includes a round rod 65 slidably connected to the bottom of the hand-held rod 11. The bottom of the round rod 65 extends into the inside of the square frame 10 and is fixedly connected with a limiting block 66. The bottom of the limiting block 66 is inclined. The periphery of the square frame 10 is slidably connected with a top rod 67. An elastic film 68 is fixedly connected between the top rod 67 and the square frame 10. A transmission component 7 for driving the round rod 65 to move is arranged below the second piston 64. The top of the base 1 is fixedly connected with a limiting frame 15. A slideway 16 is opened inside the limiting frame 15. A rubber pad 17 is fixedly connected inside the slideway 16. The outer side of the first piston 62 fits with the horizontal groove 13. The outer side of the second piston 64 fits with the vertical groove 14. The top of the base 1 is fixedly connected with a dust cover 18. The top of the dust cover 18 is fixedly connected with the square frame 10. A liquid medium is arranged between the first piston 62 and the first piston 62.

[0031] By adopting the above technical solution, the dust cover 18 is made of soft silicone material and plays a role in dust prevention. When the hand-held rod 11 is in the middle position, the square box 10 is in a vertical state, so that the pressing plate 5 does not squeeze the contact 121. In this way, the working part of the loader maintains the current state and does not move. Under the action of the limiting component 6, the ejector rod 67 is in the extended state, and at this time, the ejector rod 67 prevents the square box 10 from entering the inside of the slideway 16, and can play a role in limiting the hand-held rod 11 to avoid misoperation causing incorrect actions of the loader. When it is necessary to control the movement of the working part of the loader, while holding the hand-held rod 11, press the sliding frame 61 with the hand, so that the sliding frame 61 moves towards the first piston 62 against the elastic force of the first spring 63, so that the first piston 62 moves inside the transverse groove 13, causing the pressure change of the liquid medium, facilitating the downward movement of the second piston 64 in the vertical groove 14. Under the action of the transmission component 7, the round rod 65 can move upward, so that the limiting block 66 can move upward. At this time, the inclined part of the limiting block 66 does not squeeze the ejector rod 67. At this time, under the elastic force of the elastic membrane 68, it is convenient for the ejector rod 67 to move towards the limiting block 66. At this time, the square box 10 can enter the inside of the slideway 16. Manually shaking the hand-held rod 11 can make the square box 10 enter one of the slideways 16 inside the limiting frame 15. In this way, the square box 10 can tilt with the pressing plate 5, so that the pressing plate 5 squeezes the contact 121, facilitating the corresponding operation of the loader. When the pressing plate 5 rotates, the small rod 4 rotates, so that the ball 3 rotates inside the fixed rod 2. The bottom of the fixed rod 2 is fixed to the base 1.

[0032] When it is necessary for the working part of the loader to continuously move in one direction, after the square box 10 enters the corresponding slideway 16, the sliding frame 61 can be released. Under the elastic force of the first spring 63, it is convenient for the first piston 62 and the second piston 64 to reset, so that the round rod 65 and the limiting block 66 move downward. In this way, the inclined part of the limiting block 66 squeezes the ejector rod 67, and the ejector rod 67 moves away from the limiting block 66 against the elastic force of the elastic membrane 68, so as to enable the ejector rod 67 to squeeze the inner wall of the slideway 16, thus playing a role in limiting. The frictional force between the ejector rod 67 and the slideway 16 offsets part of the elastic force of the spring inside the actuating part 12, so that when operating the pilot handle, the pressure on the operator's hand is reduced, making it difficult for the operator to get tired during long-term work and improving work efficiency. The rubber pad 17 has an anti-slip effect, which is beneficial to increasing the frictional force between the ejector rod 67 and the slideway 16.

[0033] It should be noted that the elastic force of the first spring 63 is greater than the elastic force of the elastic membrane 68, and the elastic membrane 68 can be made of elastic rubber material.

[0034] Specifically, such as Figures 1 to 5As shown, the transmission assembly 7 includes a long rod 71 fixedly connected to the bottom of the second piston 64. The bottom of the long rod 71 is rotatably connected to a rotating plate 72. The left part of the rotating plate 72 is rotatably connected to the hand-held rod 11. A chute 76 is provided on the left side of the left part of the rotating plate 72 at the connection between the rotating plate 72 and the hand-held rod 11. A slider 73 is slidably connected inside the chute 76. The bottom of the slider 73 is rotatably connected to a lifting rod 74. The bottom of the lifting rod 74 is fixedly connected to a cross plate 75. The outer side of the lifting rod 74 is slidably connected to the hand-held rod 11. The bottom of the cross plate 75 is fixedly connected to the round rod 65.

[0035] By adopting the above technical solution, when the second piston 64 moves up and down, the long rod 71 also moves up and down accordingly, so that the rotating plate 72 rotates, causing the lifting rod 74 to drive the cross plate 75 to move up and down. During this process, the slider 73 rotates along the rotating plate 72. When the cross plate 75 moves upward, it can drive the round rod 65 to move. Since the right side of the connection between the rotating plate 72 and the hand-held rod 11 is longer and the left part is shorter, it is similar to a labor-saving lever, which can reduce the force required for the user's hand to squeeze the sliding frame 61, further making it difficult for the operator to get fatigued during long-term work and improving work efficiency.

[0036] Specifically, as Figure 4 shown, a bent frame 19 is fixedly connected to the left side of the top of the hand-held rod 11. An L-shaped groove 20 is provided at the left top of the sliding frame 61. One end of the bent frame 19 away from the hand-held rod 11 is inserted into the inside of the L-shaped groove 20.

[0037] By adopting the above technical solution, when continuous adjustment is required and the adjustment working area is switched, the sliding frame 61 can be manually pressed so that the bottom area of the bent frame 19 slides to the left part of the L-shaped groove 20. At this time, the sliding frame 61 is manually rotated slightly so that the bottom area of the sliding frame 61 rotates to the side part of the L-shaped groove 20, which can limit the sliding frame 61 and ensure that the top rod 67 does not restrict the movement of the square frame 10 and the hand-held rod 11 at this time. With such a design, when continuous adjustment is required and the adjustment working area is switched, the sliding frame 61 does not need to be pressed for a long time, further making it difficult for the operator to get fatigued during long-term work and improving work efficiency.

[0038] Specifically, as Figures 2 to 7As shown, the trigger part 12 includes a contact 121 slidably connected to the periphery of the top of the base 1. A lubrication assembly 8 is arranged inside the base 1. The lubrication assembly 8 includes a groove 81 opened inside the base 1. The lubrication assembly 8 further includes a small plate 82 slidably connected to the circumferential side of the contact 121. A second spring 83 is fixedly connected between the upper end of the upper end of the small plate 82 and the contact. A bent pipe 84 is fixedly connected below the small plate 82. One end of the bent pipe 84 away from the small plate 82 extends into the inside of the groove 81 and is fixedly connected with a circular plate 85. A corrugated bladder 811 is fixedly connected inside the groove 81. The outer side of the bent pipe 84 is slidably connected to the base 1. A storage tank 86 is opened at the edge of the upper end inside the base 1. A feed pipe 87 is fixedly inserted between the storage tank 86 and the corrugated bladder 811. A discharge pipe 88 is fixedly inserted on the side of the corrugated bladder 811 close to the trigger part 12. Check valves 89 are installed inside both the feed pipe 87 and the discharge pipe 88.

[0039] By adopting the above technical solution, the check valve 89 and its installation method are mature prior arts, so no more details will be given. The trigger part 12 further includes components such as a spring, which facilitates the reset when the pressing plate 5 does not press the contact 121. The design of the check valve 89 inside the feed pipe 87 allows only the lubricating oil in the storage tank 86 to enter the inside of the corrugated bladder 811 through the feed pipe 87. And the design of the discharge pipe 88 allows the liquid inside the corrugated bladder 811 to only be discharged from the discharge pipe 88 and not from the feed pipe 87.

[0040] When the pressing plate 5 tilts to one side, the pressing plate 5 presses the contact 121, causing the contact 121 to move downward, and thus causing the small plate 82 and the bent pipe 84 to move downward. Such a design makes the bent pipe 84 drive the circular plate 85 to move downward in the groove 81, so that the circular plate 85 presses the corrugated bladder 811, facilitating spraying the lubricating oil inside the corrugated bladder 811 onto the trigger part 12, facilitating lubricating the area of the trigger part 12, and further reducing the wear of the device.

[0041] When the pressing plate 5 resets, the contact 121 moves upward to reset, causing the small plate 82 and the bent pipe 84 to move upward, so that the circular plate 85 moves away from the corrugated bladder 811. Under the action of the self-elastic force of the corrugated bladder 811, it is convenient to spray the lubricating oil inside the corrugated bladder 811 onto the trigger part 12, and it is convenient for the lubricating oil inside the storage tank 86 to enter the inside of the corrugated bladder 811.

[0042] It should be noted that the corrugated bladder 811 is set to be small, so that the amount of lubricating oil filled each time is small.

[0043] When the bent pipe 84 cannot move downward any further, the small plate 82 moves slightly and the second spring 83 is slightly compressed.

[0044] Specifically, as Figures 2 to 7As shown, a surrounding tube 810 is fixedly inserted into the top of the storage tank 86 .

[0045] By adopting the above technical solution, the surrounding tube 810 is connected to the outside to avoid negative pressure inside the storage tank 86 when adding lubricating oil. The surrounding tube 810 is in a surrounding shape, which reduces the possibility of the lubricating oil in the storage tank 86 overflowing from the surrounding tube 810.

[0046] Specifically, Figures 2 to 7 As shown, a blocking component 9 is provided inside the surrounding tube 810, and the blocking component 9 includes an elastic sheet 91 fixedly connected to the inside of the surrounding tube 810, and the outer wall of the elastic sheet 91 is fixedly connected to a flexible membrane 92, and the flexible membrane 92 is fixedly connected to the surrounding tube 810 on one side close to the surrounding tube 810.

[0047] By adopting the above technical solution, the elastic sheet 91 is made of an elastic material, and the flexible membrane 92 is made of an elastic silicone material. When lubricating oil needs to be added to the storage tank 86, the elastic sheet 91 is stretched open under the action of gravity of the added lubricating oil, so that the bottom opening of the flexible membrane 92 is larger, which is convenient for the lubricating oil to enter. When the handle is in use, the bottom opening of the flexible membrane 92 is smaller, which further reduces the possibility of the lubricating oil in the storage tank 86 overflowing from the surrounding tube 810.

[0048] Working principle: Under the action of the limiting component 6, the ejector rod 67 is in the extended state. At this time, the ejector rod 67 prevents the square box 10 from entering the inside of the slideway 16, and can limit the handheld rod 11 to avoid incorrect operations caused by accidental touch, resulting in incorrect actions of the loader. When it is necessary to control the movement of the working part of the loader, while holding the handheld rod 11 with the hand, press the sliding frame 61 with the hand, so that the sliding frame 61 moves towards the first piston 62 against the elastic force of the first spring 63, causing the first piston 62 to move inside the transverse groove 13, changing the pressure of the liquid medium, facilitating the downward movement of the second piston 64 in the vertical groove 14. Under the action of the transmission component 7, the round rod 65 can move upward, and thus the limiting block 66 can move upward. At this time, the inclined part of the limiting block 66 does not squeeze the ejector rod 67. At this time, under the elastic force of the elastic film 68, it is convenient for the ejector rod 67 to move towards the limiting block 66. At this time, the square box 10 can enter the inside of the slideway 16. Manually shaking the handheld rod 11 can make the square box 10 enter one of the slideways 16 inside the limiting frame 15, so that the square box 10 can tilt the pressing plate 5, thereby enabling the pressing plate 5 to squeeze the contact 121, facilitating the corresponding operation of the loader. When the pressing plate 5 rotates, the small rod 4 rotates, so that the ball 3 rotates inside the fixed rod 2. The bottom of the fixed rod 2 is fixed to the base 1. Release the sliding frame 61. Under the elastic force of the first spring 63, it is convenient for the first piston 62 and the second piston 64 to reset, so that the round rod 65 and the limiting block 66 move downward. In this way, the inclined part of the limiting block 66 squeezes the ejector rod 67, and the ejector rod 67 moves away from the limiting block 66 against the elastic force of the elastic film 68, so as to enable the ejector rod 67 to squeeze the inner wall of the slideway 16, thus playing a limiting role. The frictional force between the ejector rod 67 and the slideway 16 offsets part of the elastic force of the spring inside the actuating part 12, so that when operating the pilot handle, the pressure on the operator's hand is reduced, making it difficult for the operator to get tired during long-term work and improving work efficiency. The rubber pad 17 has an anti-slip effect, which is conducive to increasing the frictional force between the ejector rod 67 and the slideway 16.

[0049] When the second piston 64 moves up and down, the long rod 71 also moves up and down accordingly, so that the rotating plate 72 rotates, causing the lifting rod 74 to drive the cross plate 75 to move up and down. During this process, the slider 73 rotates along the rotating plate 72. When the cross plate 75 moves upward, it can drive the round rod 65 to move. Since the right side of the connection between the rotating plate 72 and the hand-held rod 11 is longer and the left side part is shorter, it is similar to a labor-saving lever, which can reduce the force required for the user's hand to squeeze the sliding frame 61, further making it less likely for the operator to get fatigued during long-term work and improving work efficiency. When continuous adjustment is required and the adjustment work area needs to be switched, the sliding frame 61 can be manually pressed so that the bottom area of the bent frame 19 slides to the left part of the L-shaped groove 20. At this time, the sliding frame 61 is manually rotated slightly so that the bottom area of the sliding frame 61 rotates to the side part of the L-shaped groove 20, which can limit the sliding frame 61 and ensure that the ejector rod 67 does not restrict the movement of the square frame 10 and the hand-held rod 11 at this time. With such a design, when continuous adjustment is required and the adjustment work area needs to be switched, the sliding frame 61 does not need to be pressed for a long time, further making it less likely for the operator to get fatigued during long-term work and improving work efficiency.

[0050] When the pressing plate 5 tilts to one side, the pressing plate 5 squeezes the contact 121, causing the contact 121 to move downward, so that the small plate 82 and the bent pipe 84 move downward. With such a design, the bent pipe 84 drives the round plate 85 to move downward, so that the round plate 85 squeezes the corrugated bladder 811, facilitating spraying the lubricating oil inside the corrugated bladder 811 onto the actuating part 12, facilitating lubricating the area of the actuating part 12, and further reducing the wear of the device.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A loader operation control handle, comprising a base (1), characterized in that: In the middle of the top of the base (1), a fixed rod (2) is fixedly connected. At the top of the fixed rod (2), a round bead (3) is rotatably connected. At the top of the round bead (3), a small rod (4) is fixedly connected. At the top of the small rod (4), a pressing plate (5) is fixedly connected. In the middle of the top of the pressing plate (5), a square frame (10) is fixedly connected. At the top of the square frame (10), a hand-held rod (11) is fixedly connected. At the four surrounding of the top of the base (1), a touching part (12) is arranged. Above the base (1), a limiting component (6) is arranged. The limiting component (6) includes a sliding frame (61) slidably connected to the left side of the hand-held rod (11). Inside the hand-held rod (11), a horizontal groove (13) is opened. Below the right side of the horizontal groove (13) inside the hand-held rod (11), a vertical groove (14) is opened. The horizontal groove (13) communicates with the vertical groove (14). On the right side of the sliding frame (61), a first piston (62) is rotatably connected. Between the first piston (62) and the sliding frame (61), a first spring (63) is fixedly connected. The limiting component (6) further includes a second piston (64) slidably connected inside the vertical groove (14). The limiting component (6) further includes a round rod (65) slidably connected to the bottom of the hand-held rod (11). The bottom of the round rod (65) extends into the inside of the square frame (10) and is fixedly connected with a limiting block (66). The bottom of the limiting block (66) is inclined. Around the square frame (10), a top rod (67) is slidably connected. Between the top rod (67) and the square frame (10), an elastic film (68) is fixedly connected. Below the second piston (64), a transmission component (7) for driving the round rod (65) to move is arranged. At the top of the base (1), a limiting frame (15) is fixedly connected. Inside the limiting frame (15), a slideway (16) is opened. The transmission component (7) includes a long rod (71) fixedly connected to the bottom of the second piston (64). At the bottom of the long rod (71), a rotating plate (72) is rotatably connected. The left part of the rotating plate (72) is rotatably connected to the hand-held rod (11). On the left part of the rotating plate (72), to the left of the connection part between the rotating plate (72) and the hand-held rod (11), a chute (76) is opened. Inside the chute (76), a slider (73) is slidably connected. At the bottom of the slider (73), a lifting rod (74) is rotatably connected. At the bottom of the lifting rod (74), a cross plate (75) is fixedly connected. The outer side of the lifting rod (74) is slidably connected to the hand-held rod (11). The bottom of the cross plate (75) is fixedly connected with the round rod (65). At the top left of the hand-held rod (11), a bent frame (19) is fixedly connected. At the top left of the sliding frame (61), an L-shaped groove (20) is opened. One end of the bent frame (19) away from the hand-held rod (11) is inserted into the inside of the L-shaped groove (20).

2. The loader operation control handle according to claim 1, wherein: A rubber pad (17) is fixedly connected inside the slideway (16). The outer side of the first piston (62) fits with the transverse groove (13), and the outer side of the second piston (64) fits with the vertical groove (14).

3. A loader operation control handle according to claim 1, characterized in that: A dust cover (18) is fixedly connected to the top of the base (1), and the top square frame (10) of the dust cover (18) is fixedly connected.

4. A loader operation control handle according to claim 1, wherein: The trigger part (12) includes a contact head (121) slidably connected to the periphery of the top of the base (1). A lubrication assembly (8) is arranged inside the base (1). The lubrication assembly (8) includes a groove (81) opened inside the base (1). The lubrication assembly (8) further includes a small plate (82) slidably connected to the circumferential side of the contact head (121). A second spring (83) is fixedly connected between the upper end of the small plate (82) and the contact head (121). A bent pipe (84) is fixedly connected below the small plate (82). One end of the bent pipe (84) away from the small plate (82) extends into the inside of the groove (81) and is fixedly connected with a circular plate (85). A corrugated bladder (811) is fixedly connected inside the groove (81). The outer side of the bent pipe (84) is slidably connected with the base (1). A storage groove (86) is opened at the upper edge of the inner part of the base (1). A feed pipe (87) is fixedly inserted between the storage groove (86) and the corrugated bladder (811). A discharge pipe (88) is fixedly inserted on one side of the corrugated bladder (811) close to the trigger part (12).

5. The operation control handle of a loader according to claim 4, wherein: Check valves (89) are installed inside both the feed pipe (87) and the discharge pipe (88).

6. The operation control handle of a loader according to claim 4, characterized in that: A surrounding pipe (810) is fixedly inserted at the top of the storage groove (86).

7. The operation control handle of a loader according to claim 6, characterized in that: A blocking assembly (9) is arranged inside the surrounding pipe (810). The blocking assembly (9) includes an elastic sheet (91) fixedly connected inside the surrounding pipe (810). A flexible film (92) is fixedly connected to the outer wall of the elastic sheet (91). The side of the flexible film (92) close to the surrounding pipe (810) is fixedly connected with the surrounding pipe (810).

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