Loader operation control handle

Abstract

The invention relates to the technical field of operation handles, and particularly discloses a loader operation control handle which comprises a base, a fixing rod is fixedly connected to the middle of the top of the base, a ball is rotatably connected to the top of the fixing rod, a small rod is fixedly connected to the top of the ball, and a pressing plate is fixedly connected to the top of the small rod. A square frame is fixedly connected to the middle of the top of the pressing plate, a handheld rod is fixedly connected to the top of the square frame, touch parts are arranged on the periphery of the top of the base, and a limiting assembly is arranged above the base. When the ejector rod extrudes the inner wall of the sliding way, the limiting effect is achieved, the friction force between the ejector rod and the sliding way counteracts part of the elastic force of the spring in the touch part, and therefore when the pilot handle is operated, the pressure of the hand of an operator is reduced, the operator is not prone to fatigue after working for a long time, and the working efficiency is improved.

Description

Technical Field

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

[0002] A loader is a type of engineering machinery with high operating efficiency. It is widely used in construction projects such as roads, railways, buildings, hydropower, ports and mines. It is mainly composed of three parts: an engine, a chassis including a traveling mechanism, and a working device. The loader's excavation and loading and unloading operations are achieved through the movement of its working device, including the coordinated movement of components such as the bucket, boom, connecting rod, rocker arm and bucket cylinder. These components work together to enable the loader to efficiently complete various earthwork construction tasks.

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

[0004] The purpose of the present invention is to provide a loader operating control handle, which can limit the hand-held rod to avoid the situation where the loader erroneous operation is caused by accidental touch, and when the push rod squeezes the inner wall of the slideway, it can play a limiting role. The friction between the push rod and the slideway offsets part of the elastic force of the spring in the triggering part, so that when operating the pilot handle, the pressure on the operator's hand is reduced, the operator is not easily fatigued after working for a long time, and the work efficiency is improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a loader operating control handle comprises a base, a top middle part of the base is fixedly connected to a fixing rod, a top of the fixing rod is rotatably connected to a ball, a top of the ball is fixedly connected to a small rod, a top of the small rod is fixedly connected to a pressure plate, a top middle part of the pressure plate is fixedly connected to a square frame, a top of the square frame is fixedly connected to a hand-held rod, a touch portion is arranged around the top of the base, a limiting assembly is arranged above the base, the limiting assembly comprises a sliding frame slidably connected to the left side of the hand-held rod, a transverse groove is provided inside the hand-held rod, a vertical groove is provided inside the hand-held rod at the right side and below the transverse groove, the transverse groove is connected to 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 assembly also comprises a second piston slidably connected to the inside of the vertical groove.

[0006] Preferably, the limiting component also includes a round rod slidably connected to the bottom of the hand-held rod, the bottom of the round rod extends into the interior of the square frame and is fixedly connected to a limiting block, the bottom of the limiting block is inclined, the square frame is slidably connected with a push rod on all sides, an elastic membrane is fixedly connected between the push rod and the square frame, a transmission assembly for driving the round rod to move is arranged below the second piston, the top of the base is fixedly connected to a limiting frame, and a slideway is provided inside the limiting frame.

[0007] Preferably, a rubber pad is fixedly connected to the interior of the slideway, the outer side of the first piston fits with the transverse groove, and the outer side of the second piston fits with the vertical groove.

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

[0009] Preferably, the transmission assembly includes a long rod fixedly connected to the bottom of the second piston, the bottom of the long rod is rotatably connected to a rotating plate, the left part of the rotating plate is rotatably connected to the hand-held rod, the left part of the rotating plate is located on the left side of the connection between the rotating plate and the hand-held rod and is provided with a sliding groove, the inside of the sliding groove is slidably connected to a slider, the bottom of the slider is rotatably connected to a lifting rod, the bottom of the lifting rod is fixedly connected to a cross plate, 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 of the left side of the sliding frame, and the end of the bent frame away from the hand-held rod is inserted into the L-shaped groove.

[0011] Preferably, the touch part includes contacts slidably connected around the top of the base, a lubrication assembly is provided inside the base, the lubrication assembly includes a groove opened inside the base, the lubrication assembly also includes a small plate slidably connected to the side of the contact ring, a second spring is fixedly connected between the upper end of the small plate and the contact, a bent tube is fixedly connected below the small plate, an end of the bent tube away from the small plate extends into the groove and is fixedly connected to a circular plate, a corrugated bag is fixedly connected to the groove, the outer side of the bent tube is slidably connected to the base, a storage groove is opened at the upper edge of the base, an inlet pipe is fixedly inserted between the storage groove and the corrugated bag, and an outlet pipe is fixedly inserted on the side of the corrugated bag close to the touch part.

[0012] Preferably, check valves are installed inside the inlet pipe and the outlet pipe.

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

[0014] Preferably, a blocking assembly is provided inside the surrounding tube, and the blocking assembly includes an elastic sheet fixedly connected to the inside of the surrounding tube, and a flexible membrane is fixedly connected to the outer wall of the elastic sheet, and the flexible membrane is fixedly connected to the surrounding tube on one side close to the surrounding tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The limiting component can limit the hand lever to avoid the loader's erroneous action caused by accidental touch. When the push rod squeezes the inner wall of the slideway, it can limit the position. The friction between the push rod and the slideway offsets part of the elastic force of the spring in the trigger part, thereby reducing the pressure on the operator's hand when operating the pilot handle, making the operator less fatigued after 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 hand-held rod is longer and the left side 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, further making the operator less fatigued after working for a long time and improving work efficiency;

[0018] 3. Through the function of the bending frame and the L-shaped groove, when continuous adjustment is required and the working area is switched, it is not necessary to press the sliding frame for a long time, which further reduces fatigue of the operator during long-term work and improves work efficiency. BRIEF 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 half-section structural schematic diagram of the square 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 5 The present invention provides a technical solution: a loader operation control handle, comprising a base 1, a fixed rod 2 is fixedly connected to the top middle part of the base 1, a ball 3 is rotatably connected to the top of the fixed rod 2, a small rod 4 is fixedly connected to the top of the ball 3, a pressure plate 5 is fixedly connected to the top of the small rod 4, a square frame 10 is fixedly connected to the top middle part of the pressure plate 5, a hand-held rod 11 is fixedly connected to the top of the frame 10, a touch portion 12 is arranged around the top of the base 1, a limiting component 6 is arranged above the base 1, the limiting component 6 comprises a sliding frame 61 slidably connected to the left side of the hand-held rod 11, a transverse groove 13 is opened inside the hand-held rod 11, a vertical groove 14 is opened inside the hand-held rod 11 at the right lower side of the transverse groove 13, the transverse groove 13 is connected to the vertical groove 14, a first piston 62 is rotatably connected to the right side of the sliding frame 61, a first spring 63 is fixedly connected between the first piston 62 and the sliding frame 6 ... The control component 6 also includes a second piston 64 slidably connected to the inside of the vertical groove 14, and the limiting component 6 also 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 interior of the square frame 10 and is fixedly connected to a limiting block 66, the bottom of the limiting block 66 is tilted, and a push rod 67 is slidably connected to the four sides of the square frame 10, and an elastic film 68 is fixedly connected between the push rod 67 and the square frame 10, and a transmission component 7 for driving the round rod 65 to move is arranged below the second piston 64, a limiting frame 15 is fixedly connected to the top of the base 1, a slideway 16 is opened inside the limiting frame 15, and a rubber pad 17 is fixedly connected inside the slideway 16, the outer side of the first piston 62 is fitted with the transverse groove 13, and the outer side of the second piston 64 is fitted with the vertical groove 14, 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, and 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 to play a dust-proof role. When the hand-held rod 11 is in the middle position, the frame 10 is in a vertical state, so that the pressure plate 5 does not squeeze the contact 121, so that the working part of the loader maintains the current state and does not move. Under the action of the limiting component 6, the push rod 67 is in an extended state, and at this time the push rod 67 prevents the frame 10 from entering the interior of the slideway 16, and can limit the hand-held rod 11 to avoid the situation where the loader erroneously moves due to accidental touch. When it is necessary to control the movement of the working part of the loader, the hand holds the hand-held rod 11 while pressing the sliding frame 61, so that the sliding frame 61 overcomes the elastic force of the first spring 63 and moves in the direction of the first piston 62, so that the first piston 62 moves inside the transverse groove 13, so that The pressure change of the liquid medium makes it easier for the second piston 64 to move downward in the vertical groove 14. Under the action of the transmission assembly 7, the round rod 65 can move upward, so that the limit block 66 can move upward. At this time, the inclined part of the limit block 66 does not squeeze the push rod 67. At this time, under the elastic force of the elastic membrane 68, it is easy for the push rod 67 to move in the direction of the limit block 66. At this time, the square frame 10 can enter the interior of the slide 16. Manually shaking the hand-held rod 11 can make the square frame 10 enter one of the slides 16 inside the limiting frame 15. In this way, the square frame 10 can tilt with the pressure plate 5, so that the pressure plate 5 squeezes the contact 121, which is convenient for the loader to perform corresponding operations. When the pressure plate 5 rotates, the small rod 4 rotates, so that the round ball 3 rotates inside the fixed rod 2, and the bottom of the fixed rod 2 is fixed to the base 1.

[0032] When the working part of the loader needs to move continuously in one direction, the sliding frame 61 can be released after the box 10 enters the corresponding slide 16. Under the elastic force of the first spring 63, the first piston 62 and the second piston 64 are reset, so that the round rod 65 and the limit block 66 move downward, so that the inclined part of the limit block 66 squeezes the push rod 67, and the push rod 67 overcomes the elastic force of the elastic film 68 and moves in the direction away from the limit block 66, so that the push rod 67 squeezes the inner wall of the slide 16, thereby playing a limiting role. The friction between the push rod 67 and the slide 16 offsets part of the elastic force of the spring in the trigger part 12, so that when operating the pilot handle, the pressure on the operator's hand is reduced, the operator is not easily fatigued after working for a long time, and the work efficiency is improved. The rubber pad 17 has an anti-slip effect, which is conducive to increasing the friction between the push rod 67 and the slide 16.

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

[0034] Specifically, 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 side portion of the rotating plate 72 is rotatably connected to the hand-held rod 11, the left side portion of the rotating plate 72 is located on the left side of the connection between the rotating plate 72 and the hand-held rod 11 and is provided with a sliding groove 76, the inside of the sliding groove 76 is slidably connected to a slider 73, 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, and 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, and the lifting rod 74 lifts and lowers the cross plate 75. During this process, the slider 73 rotates along the rotating plate 72. When the cross plate 75 moves upward, it can move the round rod 65. Since the right side of the connection between the rotating plate 72 and the hand-held rod 11 is longer and the left side is shorter, it is similar to a labor-saving lever. This can reduce the force required for the user's hand to squeeze the sliding frame 61, further making the operator less fatigued after long-term work and improving work efficiency.

[0036] Specifically, Figure 4 As 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 opened on the left top of the sliding frame 61 , and the end of the bent frame 19 away from the hand-held rod 11 is inserted into 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 to make the bottom area of ​​the bending frame 19 slide to the left part of the L-shaped groove 20. At this time, the sliding frame 61 is manually rotated slightly to make the bottom area of ​​the sliding frame 61 rotate to the side part of the L-shaped groove 20. The sliding frame 61 can be limited to ensure that the top rod 67 does not restrict the movement of the frame 10 and the hand-held rod 11 at this time. With this design, when continuous adjustment is required and the adjustment working area is switched, there is no need to press the sliding frame 61 for a long time, which further makes the operator less fatigued after long-term work and improves work efficiency.

[0038] Specifically, Figures 2 to 7As shown, the touch part 12 includes a contact 121 slidably connected to the top of the base 1 around the periphery, 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 also includes a small plate 82 slidably connected to the ring 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 groove 81 and is fixedly connected to a circular plate 85, a bellows 811 is fixedly connected to the groove 81, the outer side of the bent pipe 84 is slidably connected to the base 1, a storage groove 86 is opened at the upper edge of the inner part of the base 1, an inlet pipe 87 is fixedly inserted between the storage groove 86 and the bellows 811, an outlet pipe 88 is fixedly inserted on the side of the bellows 811 close to the touch part 12, and a check valve 89 is installed inside both the inlet pipe 87 and the outlet pipe 88.

[0039] By adopting the above technical solution, the check valve 89 and its installation method are mature existing technologies, so they will not be described in detail. The touch portion 12 also includes components such as a spring, which is convenient for resetting when the pressure plate 5 does not squeeze the contact 121. The design of the check valve 89 inside the inlet pipe 87 allows only the lubricating oil in the storage tank 86 to enter the interior of the bellows 811 through the inlet pipe 87, and the design of the outlet pipe 88 allows the liquid inside the bellows 811 to be discharged only from the outlet pipe 88 and cannot be discharged from the inlet pipe 87.

[0040] When the pressure plate 5 tilts to one side, the pressure plate 5 squeezes the contact 121, causing the contact 121 to move downward, thereby causing the small plate 82 and the curved tube 84 to move downward. This design allows the curved tube 84 to move downward with the circular plate 85 in the groove 81, thereby causing the circular plate 85 to squeeze the bellows 811, thereby facilitating the lubricating oil inside the bellows 811 to be sprayed toward the touch portion 12, thereby facilitating lubrication of the area of ​​the touch portion 12 and reducing wear on the device.

[0041] When the pressure plate 5 is reset, the contact 121 is reset and moved upward, thereby causing the small plate 82 and the curved tube 84 to move upward, thereby causing the circular plate 85 to move away from the bellows 811. Under the elastic force of the bellows 811 itself, the lubricating oil inside the bellows 811 is sprayed toward the touch portion 12, and the lubricating oil inside the storage groove 86 enters the interior of the bellows 811.

[0042] It should be noted that the bellows 811 is set to be smaller, so that the amount of lubricating oil added each time is smaller.

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

[0044] Specifically, 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 assembly 6, the push rod 67 is in an extended state, and at this time the push rod 67 prevents the frame 10 from entering the interior of the slideway 16, and can limit the hand-held rod 11 to avoid the loader from making an erroneous action due to an accidental touch. When it is necessary to control the movement of the working part of the loader, the hand-held rod 11 is held while the hand-held rod 11 is pressed and the sliding frame 61 is pressed, so that the sliding frame 61 overcomes the elastic force of the first spring 63 and moves in the direction of the first piston 62, so that the first piston 62 moves inside the transverse groove 13. , so that the pressure of the liquid medium changes, which facilitates the second piston 64 to move downward in the vertical groove 14. Under the action of the transmission assembly 7, the round rod 65 can be moved upward, so that the limit block 66 can be moved upward. At this time, the inclined part of the limit block 66 does not squeeze the push rod 67. At this time, under the elastic force of the elastic film 68, it is convenient for the push rod 67 to move in the direction of the limit block 66. At this time, the box 10 can enter the interior of the slide 16, and manually shaking the hand-held rod 11 can make the box 10 enter one of the interiors of the limit frame 15. The slideway 16 can make the frame 10 tilt with the pressure plate 5, so that the pressure plate 5 squeezes the contact 121, which is convenient for the loader to perform corresponding operations. When the pressure 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, and the sliding frame 61 is released. Under the elastic force of the first spring 63, the first piston 62 and the second piston 64 are reset, so that the round rod 65 and the limit block 66 move downward, so that the inclined part of the limit block 66 is against the top rod 67 is squeezed, and the push rod 67 overcomes the elastic force of the elastic film 68 and moves in the direction away from the limit block 66, so that the push rod 67 squeezes the inner wall of the slideway 16, thereby playing a limiting role. The friction between the push rod 67 and the slideway 16 offsets part of the elastic force of the spring in the triggering part 12, so that when operating the pilot handle, the pressure on the operator's hand is reduced, the operator is not easily fatigued after working for a long time, and the work efficiency is improved. The rubber pad 17 has an anti-slip effect, which is beneficial to increase the friction between the push 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, so that the rotating plate 72 rotates, so that the lifting rod 74 lifts and lowers the cross plate 75. In this process, the slider 73 rotates along the rotating plate 72. When the cross plate 75 moves upward, it can move the round rod 65. Since the right side of the connection between the rotating plate 72 and the hand-held rod 11 is longer and the left side is shorter, it is similar to a labor-saving lever. This can reduce the force required for the user's hand to squeeze the sliding frame 61, further making the operator less tired after working for a long time and improving work efficiency. When adjusting the working area, the sliding frame 61 can be manually pressed to make the bottom area of ​​the bending frame 19 slide to the left part of the L-shaped groove 20. At this time, the sliding frame 61 can be manually rotated slightly to make the bottom area of ​​the sliding frame 61 rotate to the side part of the L-shaped groove 20. The sliding frame 61 can be limited to ensure that the top rod 67 does not limit the movement of the frame 10 and the hand-held rod 11 at this time. Such a design does not need to press the sliding frame 61 for a long time when continuous adjustment is required and the working area is switched. This further makes it less likely for the operator to get tired after working for a long time, thereby improving work efficiency.

[0050] When the pressure plate 5 tilts to one side, the pressure plate 5 squeezes the contact 121, causing the contact 121 to move downward, thereby causing the small plate 82 and the curved tube 84 to move downward. This design allows the curved tube 84 to move downward with the circular plate 85, thereby causing the circular plate 85 to squeeze the bellows 811, thereby facilitating the lubricating oil inside the bellows 811 to be sprayed toward the touch portion 12, thereby facilitating lubrication of the area of ​​the touch portion 12 and 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 it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A loader operating control handle, comprising a base (1), characterized in that: The top middle part of the base (1) is fixedly connected to a fixing rod (2), the top of the fixing rod (2) is rotatably connected to a ball (3), the top of the ball (3) is fixedly connected to a small rod (4), the top of the small rod (4) is fixedly connected to a pressing plate (5), the top middle part of the pressing plate (5) is fixedly connected to a square frame (10), the top of the square frame (10) is fixedly connected to a hand-held rod (11), and the top of the base (1) is provided with actuating parts (12) around the periphery of the top; A limiting assembly (6) is arranged above the base (1), and the limiting assembly (6) comprises a sliding frame (61) slidably connected to the left side of the hand-held rod (11); a transverse groove (13) is provided inside the hand-held rod (11); a vertical groove (14) is provided inside the hand-held rod (11) at the right side and below the transverse groove (13); the transverse groove (13) is communicated with the vertical groove (14); a first piston (62) is rotatably connected to the right side of the sliding frame (61); a first spring (63) is fixedly connected between the first piston (62) and the sliding frame (61); and the limiting assembly (6) further comprises a second piston (64) slidably connected to the inside of the vertical groove (14).

2. A loader operating control handle according to claim 1, characterized in that: The limiting assembly (6) also 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 interior of the square frame (10) and is fixedly connected to a limiting block (66); the bottom of the limiting block (66) is inclined; a push rod (67) is slidably connected to the four sides of the square frame (10); an elastic membrane (68) is fixedly connected between the push rod (67) and the square frame (10); a transmission assembly (7) for driving the round rod (65) to move is arranged below the second piston (64); a limiting frame (15) is fixedly connected to the top of the base (1); a slideway (16) is provided inside the limiting frame (15).

3. A loader operating control handle according to claim 2, characterized in that: A rubber pad (17) is fixedly connected to the interior of the slideway (16); the outer side of the first piston (62) is in contact with the transverse groove (13); and the outer side of the second piston (64) is in contact with the vertical groove (14).

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

5. The loader operating control handle according to claim 2, characterized in that: The transmission assembly (7) comprises 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 side of the rotating plate (72) is rotatably connected to the hand-held rod (11); the left side of the rotating plate (72) is provided with a sliding groove (76) on the left side of the connection between the rotating plate (72) and the hand-held rod (11); the inside of the sliding groove (76) is slidably connected to a slider (73); 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 transverse plate (75); the outer side of the lifting rod (74) is slidably connected to the hand-held rod (11); and the bottom of the transverse plate (75) is fixedly connected to the round rod (65).

6. The loader operating control handle according to claim 5, characterized in that: 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 on the left top of the sliding frame (61), and an end of the bent frame (19) away from the hand-held rod (11) is inserted into the L-shaped groove (20).

7. The loader operating control handle according to claim 1, characterized in that: The touch portion (12) comprises a contact (121) slidably connected to the top of the base (1) around the periphery, the base (1) is provided with a lubrication assembly (8) inside, the lubrication assembly (8) comprises a groove (81) provided inside the base (1), the lubrication assembly (8) further comprises a small plate (82) slidably connected to the ring side of the contact (121), a second spring (83) is fixedly connected between the upper end of the small plate (82) and the contact (121), a bent pipe (84) is fixedly connected below the small plate (82), and the One end of the curved tube (84) away from the small plate (82) extends into the interior of the groove (81) and is fixedly connected to a circular plate (85); the interior of the groove (81) is fixedly connected to a corrugated bag (811); the outer side of the curved tube (84) is slidably connected to the base (1); a storage groove (86) is provided at the inner upper edge of the base (1); an inlet pipe (87) is fixedly plugged between the storage groove (86) and the corrugated bag (811); and an outlet pipe (88) is fixedly plugged on the side of the corrugated bag (811) close to the triggering portion (12).

8. The loader operating control handle according to claim 7, characterized in that: A check valve (89) is installed inside the inlet pipe (87) and the outlet pipe (88).

9. The loader operating control handle according to claim 7, characterized in that: A surrounding tube (810) is fixedly inserted into the top of the storage tank (86).

10. The loader operating control handle according to claim 9, characterized in that: A blocking component (9) is arranged inside the surrounding tube (810), and the blocking component (9) comprises an elastic sheet (91) fixedly connected to the inside of the surrounding tube (810), and a flexible membrane (92) is fixedly connected to the outer wall of the elastic sheet (91), and the flexible membrane (92) is fixedly connected to the surrounding tube (810) on a side close to the surrounding tube (810).

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