Crawler-type multi-functional loader

Abstract

The application discloses a caterpillar type multifunctional loader and relates to the technical field of loaders.The caterpillar type multifunctional loader comprises a walking base, a triangular caterpillar is installed at the bottom end of the walking base, a lower connecting seat is fixedly connected to the top end of the walking base, an installation plate is arranged above the lower connecting seat, an upper connecting seat is fixedly connected to the bottom end of the installation plate, a positioning mechanism and a supporting mechanism are arranged.The positioning mechanism is arranged to place the inner ring and the outer ring on the lower connecting seat, to push the limiting rod upwards to move, to make the limiting rod slide in the fixing seat, to make the limiting rod pass through the first limiting hole, to make the upper connecting seat move under the driving of the crane, to make the upper connecting seat move above the outer ring, to make the limiting rod pass through the second limiting hole, to position the upper connecting seat, to make the upper connecting seat keep aligned with the through hole on the outer ring, to push the limiting rod to move out of the first limiting hole and the second limiting hole, and to facilitate the positioning between the outer ring and the upper connecting seat, so that the through holes on the outer ring and the upper connecting seat are aligned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of loaders, and particularly relates to a crawler-type multifunctional loader. BACKGROUND

[0002] The loader is a kind of earthwork construction machinery widely used in road, railway, building, water and electricity, port and mine construction engineering, which is mainly used for shoveling soil, sand, lime, coal and other bulk materials, and can also perform light shoveling operation on ore and hard soil, and can also perform earth pushing, lifting and other material such as wood loading and unloading operation by replacing different auxiliary working devices. In road construction, especially in high-grade road construction, the loader is used for filling and digging of roadbed engineering, and for collecting and loading of asphalt mixture and cement concrete yard, and can also perform other operations such as soil pushing, ground leveling and traction of other machinery. Since the loader has the advantages of fast operation speed, high efficiency, good maneuverability and easy operation, it has become one of the main types of earthwork construction in engineering construction. According to the structure of the walking system, the loader can be divided into a tire-type loader and a crawler-type loader.

[0003] When the loader is used, the walking base of the loader is connected with the upper frame, so that the loader can rotate, and a rotary support is usually used for connection. When installing, the rotary support is first placed on the lower connecting seat, and then the frame is lifted by a crane and moved above the lower connecting seat, so that the upper connecting seat is moved to the rotary support, and then the upper connecting seat and the outer ring are fixedly connected by screws. However, when the upper loader seat is moved to the rotary support, the outer ring and the through hole on the upper connecting seat need to be aligned, and the driving wheel on the upper connecting seat needs to be in contact with the inner ring. If there is a deviation, the position needs to be adjusted, which is relatively complex. In order to conveniently position the position of the outer ring and the upper connecting seat, a crawler-type multifunctional loader is provided. SUMMARY

[0004] The present application relates to the technical field of loaders, and particularly relates to a crawler-type multifunctional loader.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a crawler-type multifunctional loader, comprising a walking base, a triangular track is installed at the bottom end of the walking base, a lower connecting seat is fixedly connected to the top end of the walking base, an installation plate is arranged above the lower connecting seat, an upper connecting seat is fixedly connected to the bottom end of the installation plate, a driving arm is installed at the top end of the installation plate, a shovel is installed at one end of the driving arm, the lower connecting seat and the upper connecting seat are connected through a rotary support, the rotary support is composed of an inner ring and an outer ring, a through hole is formed in the outer wall of the upper connecting seat and the outer ring, a screw is slidably connected to the inner wall of the through hole, a nut is threadedly connected to the outer wall of the screw, the positions of the inner ring and the outer ring are positioned by a positioning mechanism, and the installation plate is supported by a supporting mechanism.

[0006] As a further scheme of the present application: the positioning mechanism comprises a plug rod, the plug rod is fixedly connected to the top end of the lower connecting seat, a plug hole is formed in the outer wall of the inner ring, first limiting holes are symmetrically formed in the outer wall of the outer ring, second limiting holes are symmetrically formed in the outer wall of the upper connecting seat, fixed seats are symmetrically fixedly connected to the top end of the walking base on both sides of the lower connecting seat, a limiting rod is slidably connected to the inner wall of the fixed seat, a clamping block extending out of the limiting rod is slidably connected to the inside of the limiting rod, a spring is connected between the clamping block and the limiting rod, a pressing frame is slidably connected to the inside of the limiting rod above the clamping block, a rotating block is rotatably connected to the top end of the limiting rod, and a threaded rod penetrating through the pressing frame is fixedly connected to the bottom end of the rotating block.

[0007] As a further scheme of the present application: the positioning mechanism further comprises a groove, the groove is formed in one side of the outer wall of the limiting rod, a rotating plate is rotatably connected to the top end of the limiting rod at the top end of the groove, a motor is installed in the inside of the upper connecting seat, a first spur gear is connected to the output end of the motor, a second spur gear is arranged on one side of the first spur gear, a driving wheel is fixedly connected to the bottom end of the second spur gear, an installation seat is slidably connected to the bottom end of the upper connecting seat, the driving wheel is rotatably connected to the installation seat, a cross rod extending into the inner cavity of the second limiting hole is fixedly connected to one side of the installation seat, a vertical plate extending to the bottom end of the upper connecting seat is slidably connected to one side of the cross rod in the inside of the upper connecting seat, an inclined groove is formed in the outer wall of the cross rod, a sliding rod is fixedly connected to the top end of the vertical plate, and the sliding rod is slidably connected to the inner wall of the inclined groove.

[0008] As a further solution of the present invention: the support mechanism includes a support rod, which is symmetrically rotatably connected to the outer wall of the mounting plate, and the interior of the mounting plate is slidably connected to a displacement seat on one side of the support rod, and the displacement seat extends above the mounting plate, and the top of the displacement seat is fixedly connected to a pull ring, and one side of the displacement seat is fixedly connected to the displacement rod, the outer wall of the support rod is provided with a vertical groove, the top of the vertical groove is provided with a displacement groove, the bottom end of the mounting plate is located on both sides of the support rod and has fixed grooves, the interior of the support rod is slidably connected to a fixing bracket extending from the support rod, and the top of the fixing bracket is fixedly connected to the bottom plate.

[0009] As a further solution of the present invention: the outer wall of the insertion rod is in contact with the inner wall of the insertion hole, and the inner wall of the first limiting hole is in contact with the outer wall of the limiting rod.

[0010] As a further solution of the present invention: the inner wall of the fixing seat is provided with a ratchet, and one end of the clamping block is engaged with the ratchet.

[0011] As a further solution of the present invention: a first inclined surface is provided on the top of the clamping block, the bottom end of the lower pressing frame contacts the first inclined surface, and a threaded hole is provided on the outer wall of the lower pressing frame, and the threaded hole matches the threaded rod.

[0012] As a further solution of the present invention: a second inclined surface is provided on one end of the cross bar extending to the second limiting hole, the first spur gear is meshed with the second spur gear, and the driving wheel is meshed with the inner ring.

[0013] As a further solution of the present invention: the displacement seat is in a T-shape, and a T-shaped groove for the displacement seat to slide is provided inside the mounting plate.

[0014] As a further solution of the present invention: the inner wall of the vertical groove is in contact with the outer wall of the displacement rod.

[0015] As a further solution of the present invention, the inner wall of the fixing groove is in contact with the outer wall of the fixing frame.

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

[0017] 1、Through setting the positioning mechanism, the inner ring and the outer ring are placed to the lower connecting seat, the limiting rod is pushed upward to move, the limiting rod slides in the fixed seat, the limiting rod passes through the first limiting hole, the crane drives the upper connecting seat to move, the upper connecting seat moves above the outer ring, the limiting rod passes through the second limiting hole, the upper connecting seat is positioned, the upper connecting seat is aligned with the through hole on the outer ring, the limiting rod is moved out of the first limiting hole and the second limiting hole, the outer ring and the upper connecting seat are positioned, and the through hole on the outer ring and the upper connecting seat are aligned;

[0018] 2、Through setting the supporting mechanism, the rope passes through the first limiting hole and is lifted by the crane, the mounting plate is relatively displaced with the displacement seat under the action of gravity, the displacement rod moves into the displacement groove, the supporting rod can be rotated at the moment, the supporting rod is rotated downward, the mounting plate is lowered after completion, the bottom plate is first in contact with the ground to support, the bottom plate and the fixed frame support the mounting plate together, the bottom plate is clamped into the fixed groove at the moment, the supporting rod and the mounting plate are positioned, the mounting plate is supported when the slewing bearing is replaced, the upper connecting seat is prevented from being in contact with the ground, and impurities are prevented from being in contact with the slewing bearing through the bottom end of the upper connecting seat. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the application;

[0020] Figure 2 It is a connecting schematic view of the lower connecting seat and the upper connecting seat of the application;

[0021] Figure 3 It is a structural schematic view of the inner ring and the outer ring of the application;

[0022] Figure 4 It is an installation schematic view of the inner ring and the outer ring of the application;

[0023] Figure 5 It is a sectional view of the fixed seat of the application;

[0024] Figure 6 It is a sectional view of the limiting rod of the application;

[0025] Figure 7 It is a sectional view of the upper connecting seat of the application;

[0026] Figure 8 It is a structural schematic view of the vertical plate of the application;

[0027] Figure 9 It is a structural schematic view of the mounting plate of the application;

[0028] Figure 10 It is a partial sectional view of the mounting plate of the application;

[0029] Figure 11 is a sectional view of the support rod of the present application.

[0030] In the figure: 1, walking base; 2, triangular track; 3, mounting plate; 4, driving arm; 5, bucket; 6, lower connecting seat; 7, upper connecting seat; 8, positioning mechanism; 801, insertion rod; 802, insertion hole; 803, first limiting hole; 804, second limiting hole; 805, fixing seat; 806, limiting rod; 807, clamping block; 808, spring; 809, pressing frame; 810, threaded rod; 811, rotating block; 812, groove; 813, rotating plate; 814, motor; 815, first straight gear; 816, second straight gear; 817, driving wheel; 818, mounting seat; 819, cross rod; 820, vertical plate; 821, inclined groove; 822, sliding rod; 9, support mechanism; 901, support rod; 902, displacement seat; 903, pull ring; 904, displacement rod; 905, vertical groove; 906, displacement groove; 907, fixing groove; 908, fixing frame; 909, bottom plate; 10, inner ring; 11, outer ring; 12, through hole; 13, screw; 14, nut. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0033] Please refer to Figures 1 to 11 In the embodiment of the present application, a track type multifunctional loader comprises a walking base 1, a triangular track 2 is installed at the bottom end of the walking base 1, a lower connecting seat 6 is fixedly connected to the top end of the walking base 1, an installation plate 3 is arranged above the lower connecting seat 6, an upper connecting seat 7 is fixedly connected to the bottom end of the installation plate 3, a driving arm 4 is installed at the top end of the installation plate 3, a shovel 5 is installed at one end of the driving arm 4, the lower connecting seat 6 and the upper connecting seat 7 are connected through a rotary support, the rotary support is composed of an inner ring 10 and an outer ring 11, a through hole 12 is formed in the outer wall of the upper connecting seat 7 and the outer ring 11, a screw 13 is slidably connected to the inner wall of the through hole 12, a nut 14 is threadedly connected to the outer wall of the screw 13, the positions of the inner ring 10 and the outer ring 11 are positioned by a positioning mechanism 8, the installation plate 3 is supported by a supporting mechanism 9, the positioning mechanism 8 comprises a plug rod 801 fixedly connected to the top end of the lower connecting seat 6, a plug hole 802 is formed in the outer wall of the inner ring 10, a first limiting hole 803 is symmetrically formed in the outer wall of the outer ring 11, a second limiting hole 804 is symmetrically formed in the outer wall of the upper connecting seat 7, a fixed seat 805 is fixedly connected to the top end of the walking base 1 and symmetrically arranged at both sides of the lower connecting seat 6, a limiting rod 806 is slidably connected to the inner wall of the fixed seat 805, a clamping block 807 extending out of the limiting rod 806 is slidably connected to the inner part of the limiting rod 806, a spring 808 is connected between the clamping block 807 and the limiting rod 806, a pressing frame 809 is slidably connected to the inner part of the limiting rod 806 and above the clamping block 807, a rotating block 811 is rotatably connected to the top end of the limiting rod 806, a threaded rod 810 penetrating through the pressing frame 809 is fixedly connected to the bottom end of the rotating block 811, the positioning mechanism 8 further comprises a recess 812 formed in the outer wall of the limiting rod 806, a rotating plate 813 is rotatably connected to the top end of the limiting rod 806 and located at the top end of the recess 812, a motor 814 is installed in the inner part of the upper connecting seat 7, a first spur gear 815 is connected to the output end of the motor 814, a second spur gear 816 is arranged at one side of the first spur gear 815, a driving wheel 817 is fixedly connected to the bottom end of the second spur gear 816, an installation seat 818 is slidably connected to the bottom end of the upper connecting seat 7, the driving wheel 817 is rotatably connected to the installation seat 818, a cross rod 819 extending into the inner cavity of the second limiting hole 804 is fixedly connected to one side of the installation seat 818, a vertical plate 820 extending to the bottom end of the upper connecting seat 7 is slidably connected to one side of the inner part of the upper connecting seat 7 and located at one side of the cross rod 819, an inclined groove 821 is formed in the outer wall of the cross rod 819, a sliding rod 822 is fixedly connected to the top end of the vertical plate 820 and slidably connected to the inner wall of the inclined groove 821.

[0034] In the embodiment, when connecting the rack and the walking base 1, the inner ring 10 and the outer ring 11 are placed on the lower connecting seat 6, the insertion rod 801 is inserted into the insertion hole 802, the lower connecting seat 6 and the inner ring 10 are positioned, the limiting rod 806 is pushed upward to move, the limiting rod 806 slides in the fixed seat 805, the limiting rod 806 passes through the first limiting hole 803, the clamping block 807 is clamped with the fixed seat 805 under the elastic force of the spring 808, the limiting rod 806 positions the outer ring 11, the mounting plate 3 is displaced by the crane, the upper connecting seat 7 is moved by the displacement of the mounting plate 3, the upper connecting seat 7 moves above the outer ring 11, the upper connecting seat 7 moves downward, the limiting rod 806 passes through the second limiting hole 804, the upper connecting seat 7 is positioned, the upper connecting seat 7 is aligned with the through hole 12 on the outer ring 11, then the rotating block 811 is rotated, the rotating block 811 drives the threaded rod 810 to rotate, the threaded rod 810 drives the pressing frame 809 to displace, the clamping block 807 is separated from the fixed seat 805, the fixation of the limiting rod 806 is cancelled, the limiting rod 806 is pushed out of the first limiting hole 803 and the second limiting hole 804, then the screw 13 passes through the through hole 12 and is connected with the nut 14, the outer ring 11 and the upper connecting seat 7 are fixedly connected;

[0035] When the upper connecting seat 7 moves downward, the limiting rod 806 passes through the second limiting hole 804, the cross rod 819 contacts with the rotating plate 813, the rotating plate 813 cannot rotate downward, thereby pushing the cross rod 819 to displace, the cross rod 819 displaces the mounting seat 818, the mounting seat 818 drives the driving wheel 817 to displace; when the upper connecting seat 7 contacts with the outer ring 11, the outer ring 11 contacts with the vertical plate 820 and pushes the vertical plate 820 to displace, the vertical plate 820 resets, thereby driving the cross rod 819 and the mounting seat 818 to reset, and further driving the driving wheel 817 to displace and reset and abut against the inner wall of the inner ring 10, when the limiting rod 806 is displaced out of the first limiting hole 803 and the second limiting hole 804, the cross rod 819 can slide along the groove 812 and push the rotating plate 813 to rotate, and is displaced out of the groove 812, so as to position the outer ring 11 and the upper connecting seat 7 and align the through hole 12 on the outer ring 11 and the upper connecting seat 7.

[0036] Please refer to Figures 9 to 11The supporting mechanism 9 comprises a supporting rod 901, the supporting rod 901 is symmetrically connected to the outer wall of the mounting plate 3, the inside of the mounting plate 3 is slidably connected with a displacement seat 902 on one side of the supporting rod 901, the displacement seat 902 extends to the top of the mounting plate 3, the top of the displacement seat 902 is fixedly connected with a pull ring 903, one side of the displacement seat 902 is fixedly connected with a displacement rod 904, the outer wall of the supporting rod 901 is provided with a vertical slot 905, the top of the vertical slot 905 is provided with a displacement slot 906, the bottom of the mounting plate 3 is provided with a fixed slot 907 on both sides of the supporting rod 901, the inside of the supporting rod 901 is slidably connected with a fixed frame 908 extending out of the supporting rod 901, the top of the fixed frame 908 is fixedly connected with a bottom plate 909.

[0037] In the embodiment, when the slewing bearing is replaced, the rack is lifted to one side, when the mounting plate 3 is lifted, the rope passes through the first limiting hole 803 and is lifted by the crane, the mounting plate 3 is relatively displaced with the displacement seat 902 under the action of gravity, at this time, the displacement seat 902 drives the displacement rod 904 to displace along the vertical slot 905, the displacement rod 904 moves into the displacement slot 906, at this time, the supporting rod 901 can be rotated, the supporting rod 901 is rotated downward, after completion, the mounting plate 3 is lowered, the bottom plate 909 first contacts the ground to support, then the bottom plate 909 is relatively displaced with the fixed frame 908, the bottom plate 909 and the fixed frame 908 support the mounting plate 3 together, at this time, the bottom plate 909 is clamped into the fixed slot 907 to position the supporting rod 901 and the mounting plate 3, which is convenient for supporting the mounting plate 3 when the slewing bearing is replaced, preventing the upper connecting seat 7 from contacting the ground, and preventing impurities from contacting the slewing bearing through the bottom end of the upper connecting seat 7.

[0038] Please refer to Figures 3 to 4 The outer wall of the plug rod 801 is fitted with the inner wall of the plug hole 802, and the inner wall of the first limiting hole 803 is fitted with the outer wall of the limiting rod 806.

[0039] In the embodiment, the plug rod 801 is inserted into the plug hole 802 to position the lower connecting seat 6 and the inner ring 10, and the limiting rod 806 is pushed upward to move, and the limiting rod 806 passes through the first limiting hole 803 to position the position of the outer ring 11.

[0040] Please refer to Figures 5 to 6 The inner wall of the fixed seat 805 is provided with a ratchet, and one end of the clamping block 807 is fitted with the ratchet.

[0041] In the embodiment, the limiting rod 806 is pushed upward to move, the limiting rod 806 slides in the fixed seat 805, so that the limiting rod 806 passes through the first limiting hole 803, and the clamping block 807 is fitted with the fixed seat 805 under the action of the elastic force of the spring 808.

[0042] Please refer to Figures 5 to 6 , the top end of the clamping block 807 is provided with a first inclined surface, the bottom end of the pressing frame 809 is in contact with the first inclined surface, and a threaded hole is formed in the outer wall of the pressing frame 809 and matches the threaded rod 810.

[0043] In this embodiment: the rotating block 811 is rotated, the rotating block 811 drives the threaded rod 810 to rotate, the threaded rod 810 drives the pressing frame 809 to displace, the pressing frame 809 displaces to push the clamping block 807 to move, and the clamping block 807 is separated from the fixed seat 805, so that the fixing of the limiting rod 806 is cancelled.

[0044] Please refer to Figures 5 to 8 , the horizontal rod 819 extending to one end of the second limiting hole 804 is provided with a second inclined surface, the first spur gear 815 is engaged with the second spur gear 816, and the drive wheel 817 is engaged with the inner ring 10.

[0045] In this embodiment: when the lower connecting seat 6 and the upper connecting seat 7 relatively rotate under the driving, the motor 814 is started, the motor 814 drives the first spur gear 815 to rotate, the first spur gear 815 drives the second spur gear 816 to rotate, the second spur gear 816 drives the drive wheel 817 to rotate, and the drive wheel 817 rotates to drive the lower connecting seat 6 and the upper connecting seat 7 to relatively rotate through the inner ring 10.

[0046] Please refer to Figures 9 to 11 , the displacement seat 902 is in the shape of T, the inside of the mounting plate 3 is provided with a T-shaped groove for the displacement seat 902 to slide, and the inner wall of the vertical groove 905 is matched with the outer wall of the displacement rod 904.

[0047] In this embodiment: the rope passes through the first limiting hole 803 and is lifted by the crane, the mounting plate 3 is relatively displaced with the displacement seat 902 under the action of gravity, at this time, the displacement seat 902 drives the displacement rod 904 to displace along the vertical groove 905, the displacement rod 904 moves into the displacement groove 906, and at this time, the support rod 901 can be rotated.

[0048] Please refer to Figures 9 to 11 , the inner wall of the fixed groove 907 is matched with the outer wall of the fixed frame 908.

[0049] In this embodiment: the bottom plate 909 is first in contact with the ground for support, at this time, the bottom plate 909 is clamped into the fixed groove 907 to position the support rod 901 and the mounting plate 3.

[0050] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A crawler-type multifunctional loader, comprising a walking base (1), a triangular crawler (2) being installed at the bottom end of the walking base (1), a lower connecting seat (6) being fixedly connected to the top end of the walking base (1), a mounting plate (3) being provided above the lower connecting seat (6), a lower end of the mounting plate (3) being fixedly connected to an upper connecting seat (7), a driving arm (4) being installed at the top end of the mounting plate (3), a bucket (5) being installed at one end of the driving arm (4), the lower connecting seat (6) and the upper connecting seat (7) being connected via a slewing bearing, the slewing bearing being composed of an inner ring (10) and an outer ring (11), the outer walls of the upper connecting seat (7) and the outer ring (11) being provided with through holes (12), the inner walls of the through holes (12) being slidably connected to screws (13), the outer walls of the screws (13) being threadedly connected to nuts (14), and the characteristic of the invention is that: The positions of the inner ring (10) and the outer ring (11) are positioned by a positioning mechanism (8), and the mounting plate (3) is supported by a supporting mechanism (9); The positioning mechanism (8) includes an insertion rod (801), the insertion rod (801) is fixedly connected to the top of the lower connecting seat (6), the outer wall of the inner ring (10) is provided with an insertion hole (802), the outer wall of the outer ring (11) is symmetrically provided with a first limiting hole (803), the outer wall of the upper connecting seat (7) is symmetrically provided with a second limiting hole (804), the top of the walking base (1) is located on both sides of the lower connecting seat (6) and is symmetrically fixedly connected to a fixed seat (805), and the inner wall of the fixed seat (805) is slidably connected to the limiting rod (806), the interior of the limiting rod (806) is slidably connected to a clamping block (807) extending from the limiting rod (806), a spring (808) is connected between the clamping block (807) and the limiting rod (806), the interior of the limiting rod (806) is slidably connected to a lower pressure frame (809) above the clamping block (807), the top end of the limiting rod (806) is rotatably connected to a rotating block (811), and the bottom end of the rotating block (811) is fixedly connected to a threaded rod (810) passing through the lower pressure frame (809); The positioning mechanism (8) further comprises a groove (812), wherein the groove (812) is provided on an outer wall of one side of the limiting rod (806), the top end of the limiting rod (806) is located at the top end of the groove (812) and is rotatably connected to a rotating plate (813), a motor (814) is installed inside the upper connecting seat (7), the output end of the motor (814) is connected to a first spur gear (815), a second spur gear (816) is provided on one side of the first spur gear (815), the bottom end of the second spur gear (816) is fixedly connected to a driving wheel (817), and the bottom end of the upper connecting seat (7) slides A mounting seat (818) is connected, the driving wheel (817) is rotatably connected to the mounting seat (818), one side of the mounting seat (818) is fixedly connected to a cross bar (819) extending to the inner cavity of the second limiting hole (804), the interior of the upper connecting seat (7) is located on one side of the cross bar (819) and is slidably connected to a vertical plate (820) extending to the bottom end of the upper connecting seat (7), the outer wall of the cross bar (819) is provided with an inclined groove (821), the top end of the vertical plate (820) is fixedly connected to a sliding rod (822), and the sliding rod (822) is slidably connected to the inner wall of the inclined groove (821); The support mechanism (9) comprises a support rod (901), wherein the support rod (901) is symmetrically rotatably connected to the outer wall of the mounting plate (3), a displacement seat (902) is slidably connected to one side of the support rod (901) inside the mounting plate (3), the displacement seat (902) extends above the mounting plate (3), a pull ring (903) is fixedly connected to the top of the displacement seat (902), and a displacement rod (904) is fixedly connected to one side of the displacement seat (902), a vertical groove (905) is provided on the outer wall of the support rod (901), a displacement groove (906) is provided at the top of the vertical groove (905), and a fixing groove (907) is provided on both sides of the support rod (901) at the bottom end of the mounting plate (3), and a fixing frame (908) extending from the support rod (901) is slidably connected to the inside of the support rod (901), and the top of the fixing frame (908) is fixedly connected to the bottom plate (909).

2. The crawler-type multifunctional loader according to claim 1, characterized in that: The outer wall of the insertion rod (801) fits in contact with the inner wall of the insertion hole (802), and the inner wall of the first limiting hole (803) fits in contact with the outer wall of the limiting rod (806).

3. The crawler-type multifunctional loader according to claim 1, characterized in that: The inner wall of the fixing seat (805) is provided with ratchet teeth, and one end of the clamping block (807) is engaged with the ratchet teeth.

4. The crawler-type multifunctional loader according to claim 1, characterized in that: The top of the clamping block (807) is provided with a first inclined surface, the bottom end of the lower pressing frame (809) is in contact with the first inclined surface, and the outer wall of the lower pressing frame (809) is provided with a threaded hole, which matches the threaded rod (810); the end of the cross bar (819) extending to the second limiting hole (804) is provided with a second inclined surface, the first spur gear (815) is engaged with the second spur gear (816), and the driving wheel (817) is engaged with the inner ring (10).

5. The crawler-type multifunctional loader according to claim 1, characterized in that: The displacement seat (902) is in a T-shape, and a T-shaped groove for the displacement seat (902) to slide is provided inside the mounting plate (3).

6. The crawler-type multifunctional loader according to claim 1, characterized in that: The inner wall of the vertical groove (905) fits in contact with the outer wall of the displacement rod (904).

7. The crawler-type multifunctional loader according to claim 1, characterized in that: The inner wall of the fixing groove (907) fits in contact with the outer wall of the fixing frame (908).

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