A retractable boom that can be used on a skid loader

Abstract

The present invention relates to the technical field of loading vehicles, specifically to a retractable boom that can be used on a sliding loading vehicle, comprising a base plate, a screw and a connecting belt, a top right portion of the base plate is fixedly connected to a support column, a top portion of the support column is fixedly connected to a slideway, a cavity is arranged inside the slideway, the right end of the screw is inserted into the interior of the slideway from the left end of the slideway and is rotatably connected to the right end of the inner wall of the slideway, the slideway is a rectangular parallelepiped, a cantilever tube is mounted on the outer wall of the slideway, the cantilever tube is a square tube, a sliding groove corresponding to the outer side wall of the slideway is arranged inside the cantilever tube, the inner wall of the cantilever tube contacts the outer wall of the slideway, a connecting plate is fixedly connected to the top end of the inner wall of the cantilever tube, the bottom end of the connecting plate is inserted into the interior of the slideway from the top end of the slideway, the bottom of the connecting plate and the circumferential outer wall of the screw are connected by threads, and a long hole corresponding to the connecting plate is arranged at the top end of the slideway; the stability is high, the manufacturing and maintenance costs are low, and the reliability of use is high.

Description

Technical Field

[0001] The invention relates to the technical field of loading vehicles, in particular to a telescopic boom that can be used on a skid-type loading vehicle. Background Art

[0002] A loader is a vehicle used to transport goods. During use, the loader needs to lift the goods and place them on the vehicle. For the convenience of users, a crane is often installed on the loader to transport the goods to the vehicle.

[0003] After searching, the patent publication number CN109353943B discloses a cylindrical product packing mechanism, including a loading vehicle, a rotating lifting mechanism arranged on the loading vehicle, a horizontal platform arranged on the rotating lifting mechanism, a clamping and propulsion mechanism arranged on the horizontal platform, a slewing mechanism arranged at the front end of the loading vehicle, a boom connected to the slewing mechanism, and a hook connected to the boom; the present invention has a fast loading speed, saves time and effort, and greatly improves the efficiency of loading and transportation; the present invention can realize automatic docking between cylindrical products and cylindrical product storage devices through the horizontal platform and the rotating lifting mechanism, and has a high degree of automation; the present invention can realize automatic loading between cylindrical products and cylindrical product storage devices through the clamping and propulsion mechanism, without manual supervision; the present invention uses the clamping and propulsion mechanism to assist the cylindrical product to prevent rolling relative to the horizontal platform during the packing process, thereby fixing the cylindrical product.

[0004] During use, the boom cannot be extended or retracted laterally, and the cargo needs to be rotated before being placed in the vehicle. Compared with linear movement, it has lower stability and higher manufacturing and maintenance costs. If heavier cargo needs to be hung on the boom for a long time, its supporting components are easily damaged and its reliability is low. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides a retractable boom which can be used on a skid loader and has high stability, low manufacturing and maintenance costs, and high reliability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a retractable boom that can be used on a skid loader, comprising a base plate, a screw and a connecting belt, the top right part of the base plate is fixedly connected to a support column, the top of the support column is fixedly connected to a slide, a cavity is arranged inside the slide, the right end of the screw is inserted into the interior of the slide from the left end of the slide and is rotatably connected to the right end of the inner wall of the slide, the slide is a rectangular parallelepiped, the outer wall of the slide is covered with a cantilever tube, the cantilever tube is a square tube, the interior of the cantilever tube is provided with a sliding groove corresponding to the outer side wall of the slide, the inner wall of the cantilever tube is in contact with the outer wall of the slide, the top of the inner wall of the cantilever tube is fixedly connected to a connecting plate, and the connecting The bottom end of the connecting plate is inserted into the interior of the slideway from the top end of the slideway, and the bottom of the connecting plate and the circumferential outer wall of the screw are connected by threads, and the top of the slideway is provided with a long hole corresponding to the connecting plate, the left end of the screw is fixedly connected to a worm wheel, and the bottom end of the worm wheel is meshed with a worm, the right end of the worm is rotatably connected to the left upper end of the support column, the left end of the worm is fixedly connected to a driven wheel, the middle part of the top end of the bottom plate is fixedly connected to a vertical plate, and the upper left end of the vertical plate is rotatably connected to a driving wheel, the circumferential outer wall of the driving wheel and the circumferential outer wall of the driven wheel are connected by the connecting belt, the right part of the bottom end of the cantilever tube is fixedly connected to an extension plate, and the bottom end of the extension plate is fixedly connected to a hook.

[0009] Preferably, it also includes a trigger rod, a give way cavity is provided inside the screw, the right end of the trigger rod is inserted into the inside of the screw from the left end of the screw, and the right end of the trigger rod is fixedly connected to a trigger plate, the top right part of the trigger plate is provided with an inclined surface inclined from the upper left to the lower right, a lifting plate is provided on the right side of the trigger plate, and the bottom left part of the lifting plate is provided with a trigger surface corresponding to the top right part of the trigger plate, the top left part and the top right part of the lifting plate are fixedly connected with a limiting shaft, the top end of each limiting shaft passes through the upper part of the screw and the upper part of the slide in sequence from the inside of the screw, and the circumferential outer wall of the limiting shaft is slidably connected to the upper part of the screw and the upper part of the slide, and the top end of the inner wall of the cantilever tube is laterally arranged with a plurality of limiting grooves corresponding to the limiting shaft.

[0010] Preferably, the circumferential outer wall of each of the limiting shafts is provided with a spring, the top end of each of the springs contacts the top end of the inner wall of the screw rod, the bottom end of the spring contacts the top end of the lifting plate, and the spring is in a compressed state.

[0011] Preferably, a handle is fixedly connected to the left end of the driving wheel.

[0012] Preferably, a frame plate is fixedly connected to the left top portion of the slide, and the rear end of the frame plate is rotatably connected to the first roller, and the circumferential outer wall of the first roller is provided with a first rope winding groove, and the top left portion of the bottom plate is fixedly connected to a support plate, and the support plate is "L"-shaped, and the upper rear end of the support plate is rotatably connected to the second roller, and the circumferential outer wall of the second roller is provided with a second rope winding groove, and the top right portion of the cantilever tube is fixedly connected to a wire rope, the outer wall of the wire rope is in contact with the top end of the inner wall of the first rope winding groove, and the outer wall of the wire rope is in contact with the top end of the inner wall of the second rope winding groove, and the other end of the wire rope is provided with a counterweight device.

[0013] Preferably, the counterweight device includes a support shaft, the other end of the steel wire rope is fixedly connected to the top end of the support shaft, the bottom end of the support shaft is fixedly connected to a limiting boss, and the top end of the limiting boss is sleeved with a plurality of weight blocks.

[0014] Preferably, a long hole running through the middle of the bottom plate is provided.

[0015] Preferably, a support seat is provided on the lower side of the worm, a slot corresponding to the worm is provided on the top of the support seat, an inner wall of the support seat is in contact with the bottom end of the worm, a rib plate is provided on the bottom end of the support seat, and the right end of the rib plate and the right end of the support seat are fixedly connected to the upper left end of the support column.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a retractable boom that can be used on a skid loader, which has the following beneficial effects:

[0018] The telescopic boom can be used on a skid loader. When the user rotates the driving wheel, the driving wheel drives the driven wheel to rotate through the connecting belt, thereby causing the worm to rotate, instead of directly rotating the worm, so that the user can operate at a more comfortable height. The worm and the worm wheel cooperate to drive the worm wheel to rotate, and then drive the screw to rotate. The screw and the connecting plate are threadedly connected, and the connecting plate is driven to move by the rotation of the screw, thereby driving the cantilever tube to move left and right. The slideway and the cantilever tube cooperate to reduce the lateral deviation of the cantilever tube, thereby improving practicality. Then, the goods are hung by the hook to drive the goods to move left and right, thereby achieving the effects of high stability, low manufacturing and maintenance costs, and high reliability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 3 It is a left-side structural schematic diagram of the worm and the support seat in the present invention;

[0022] Figure 4 It is a schematic diagram of the top view of the structure of the first roller and the steel wire rope in the present invention;

[0023] Figure 5 It is a left-side structural schematic diagram of the first roller and the support plate in the present invention;

[0024] Figure 6 It is a left-side structural schematic diagram of the screw rod, slideway and cantilever tube in the present invention.

[0025] In the figure: 1. bottom plate; 2. screw; 3. connecting belt; 4. support column; 5. slideway; 6. cantilever tube; 7. connecting plate; 8. worm gear; 9. worm; 10. driven wheel; 11. vertical plate; 12. driving wheel; 13. extension plate; 14. hook; 15. trigger rod; 16. trigger plate; 17. lifting plate; 18. limit shaft; 19. spring; 20. handle; 21. frame plate; 22. first roller; 23. support plate; 24. second roller; 25. wire rope; 26. support shaft; 27. limit boss; 28. weight block; 29. ​​support seat; 30. rib plate. DETAILED DESCRIPTION

[0026] 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.

[0027] Example:

[0028] See also Figure 1-6A telescopic boom that can be used on a skid loader includes a base plate 1, a screw rod 2, a connecting belt 3 and a trigger rod 15. A long hole is provided in the middle of the base plate 1 and passes through the long hole. When the user is in use, the two cantilevers of the forklift are inserted into the long hole, thereby driving the whole to move and lift, so as to achieve the effect of facilitating the user to move the whole and use it. A support column 4 is fixedly connected to the right top of the base plate 1, and a slideway 5 is fixedly connected to the top of the support column 4. A cavity is provided inside the slideway 5, and a screw rod 2 is provided to connect the top of the base plate 1 to the top of the support column 4. The right end of the slide 2 is inserted from the left end of the slide 5 into the slide 5 and is rotatably connected to the right end of the inner wall of the slide 5. The slide 5 is a rectangular parallelepiped. The outer wall of the slide 5 is provided with a cantilever tube 6. The cantilever tube 6 is a square tube. The interior of the cantilever tube 6 is provided with a sliding groove corresponding to the outer wall of the slide 5. The inner wall of the cantilever tube 6 contacts the outer wall of the slide 5. The top of the inner wall of the cantilever tube 6 is fixedly connected with a connecting plate 7. The bottom end of the connecting plate 7 is inserted from the top of the slide 5 into the slide 5. The bottom of the connecting plate 7 and the screw 2 are connected. The circumferential outer wall is connected by a thread, and a long hole corresponding to the connecting plate 7 is provided at the top of the slideway 5. A worm wheel 8 is fixedly connected to the left end of the screw 2, and a worm 9 is meshed at the bottom end of the worm wheel 8. The right end of the worm 9 is rotatably connected to the upper left end of the support column 4. A support seat 29 is provided on the lower side of the worm 9. A groove corresponding to the worm 9 is provided at the top of the support seat 29. The inner wall of the support seat 29 contacts the bottom end of the worm 9. A rib plate 30 is provided at the bottom end of the support seat 29. The right end of the rib plate 30 and The right end of the support seat 29 is fixedly connected to the upper left end of the support column 4; the screw rod 2 is supported by the support seat 29, thereby reducing the deformation of the screw rod 2 during use, and the deformation of the support seat 29 is reduced by the rib plate 30, so as to achieve the effect of improving the stability and reliability of use. The left end of the worm 9 is fixedly connected to the driven wheel 10, the middle part of the top of the bottom plate 1 is fixedly connected to the vertical plate 11, the upper left end of the vertical plate 11 is rotatably connected to the driving wheel 12, and the left end of the driving wheel 12 is fixedly connected to the handle 20;The user pulls the handle 20 instead of directly rotating the driving wheel 12, so as to achieve the effect of facilitating the operation of the user. The circumferential outer wall of the driving wheel 12 and the circumferential outer wall of the driven wheel 10 are connected by the connecting belt 3. The right part of the bottom end of the cantilever tube 6 is fixedly connected with an extension plate 13, and the bottom end of the extension plate 13 is fixedly connected with a hook 14. A clearance cavity is arranged inside the screw rod 2. The right end of the trigger rod 15 is inserted into the inside of the screw rod 2 from the left end of the screw rod 2, and the right end of the trigger rod 15 is fixedly connected with a trigger plate 16. The right part of the top of the trigger plate 16 is provided with an inclined surface inclined from the upper left to the lower right. A lifting plate 17 is arranged on the right side of the trigger plate 16, and a lower left part of the lifting plate 17 is arranged. The trigger surface corresponds to the top right part of the trigger plate 16, the top left part and the top right part of the lifting plate 17 are fixedly connected to the limit shaft 18, the top end of each limit shaft 18 passes through the upper part of the screw 2 and the upper part of the slideway 5 in sequence from the inside of the screw 2, and the circumferential outer wall of the limit shaft 18 is slidably connected with the upper part of the screw 2 and the upper part of the slideway 5, and the top of the inner wall of the cantilever tube 6 is horizontally arranged with a plurality of limit grooves corresponding to the limit shaft 18; the user moves the trigger rod 15 to the right, and through the shape of the inclined surface, the lifting plate 17 is driven to rise, and then the limit shaft 18 is driven to rise, and after the cantilever tube 6 is extended to the position to be fixed, the limit shaft 18 extends into a limit groove. The lateral movement of the cantilever tube 6 to the left and right is further reduced, thereby achieving the effect of improving the reliability of use. The circumferential outer wall of each limit shaft 18 is provided with a spring 19, and the top of each spring 19 is in contact with the top of the inner wall of the screw 2, and the bottom of the spring 19 is in contact with the top of the lifting plate 17, and the spring 19 is in a compressed state; the elastic force of the spring 19 makes the lifting plate 17 drop due to the elastic force of the spring 19 after the trigger rod 15 moves to the left, replacing the limit shaft 18 that drops by its own gravity, reducing the difficulty of the limit shaft 18 to get out of the limit groove after deformation after long-term use, thereby further achieving the effect of improving the reliability of use. The effect of high reliability in use is that a frame plate 21 is fixedly connected to the left top of the slideway 5, and a first roller 22 is rotatably connected to the rear end of the frame plate 21, and a first rope winding groove is arranged on the circumferential outer wall of the first roller 22; a support plate 23 is fixedly connected to the left top of the bottom plate 1, and the support plate 23 is "L"-shaped; a second roller 24 is rotatably connected to the upper rear end of the support plate 23, and a second rope winding groove is arranged on the circumferential outer wall of the second roller 24; a steel wire rope 25 is fixedly connected to the right top of the cantilever tube 6, and the outer wall of the steel wire rope 25 contacts the top of the inner wall of the first rope winding groove, and the outer wall of the steel wire rope 25 contacts the top of the inner wall of the second rope winding groove, and a counterweight device is arranged on the other end of the steel wire rope 25;The counterweight device provides pulling force through the wire rope 25, and the right part of the cantilever tube 6 is pulled by the wire rope 25, so that when a heavier object is moved, the upward pulling force is reduced to reduce the pulling of the cantilever tube 6 by the object, thereby reducing the friction between the cantilever tube 6 and the slide 5, so as to facilitate the movement of the cantilever tube 6 and further reduce the user's strength, and reduce the wear of the cantilever tube 6 and the slide 5 by reducing the friction. The counterweight device includes a support shaft 26, the other end of the wire rope 25 is fixedly connected to the top of the support shaft 26, and the bottom end of the support shaft 26 is fixedly connected to the limiting boss 27, and the top of the limiting boss 27 is sleeved with multiple groups of weights 28; the user can adjust the number of weights 28, thereby adjusting the force of pulling the goods to adapt to different cargo weights, thereby reducing the friction caused by the heavy weight of the cargo or the heavy weight of the counterweight 28. In the case of large friction, the effect of improving the reliability of use is further achieved; the user rotates the driving wheel 12, and the driving wheel 12 drives the driven wheel 10 to rotate through the connecting belt 3, thereby rotating the worm 9, instead of directly rotating the worm 9, so that the user can operate at a more comfortable height, and the worm 9 and the worm wheel 8 cooperate to drive the worm wheel 8 to rotate, and then drive the screw 2 to rotate, and the screw 2 and the connecting plate 7 are threadedly connected, and the connecting plate 7 is driven to move by the rotation of the screw 2, and then the cantilever tube 6 is driven to move left and right, and the slide 5 and the cantilever tube 6 cooperate to reduce the lateral deviation of the cantilever tube 6, improve practicality, and then the goods are hung by the hook 14, and the goods are driven to move left and right, achieving high stability, low manufacturing and maintenance costs, and high reliability of use. ;

[0029] To sum up, the working principle and working process of the retractable boom that can be used on a skid loader are as follows: when in use, the user hangs the cargo on the hook 14, and the user rotates the driving wheel 12. The driving wheel 12 drives the driven wheel 10 to rotate through the connecting belt 3, thereby rotating the worm 9. The worm 9 and the worm wheel 8 cooperate to drive the worm wheel 8 to rotate, thereby driving the screw 2 to rotate, thereby driving the connecting plate 7 to move left and right. When it moves to a suitable position, the user pushes the trigger rod 15 to the right, thereby driving the lifting plate 17 to rise, thereby driving the limit shaft 18 to rise, and the limit shaft 18 extends into a limit groove, thereby fixing the relative position between the cantilever tube 6 and the screw 2, thereby fixing the position of the cantilever tube 6, and then the user operates the cargo at this position.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable boom that can be used on a skid loader, characterized in that: The invention comprises a bottom plate (1), a screw rod (2) and a connecting belt (3), wherein the top right part of the bottom plate (1) is fixedly connected to a support column (4), the top end of the support column (4) is fixedly connected to a slideway (5), a cavity is arranged inside the slideway (5), the right end of the screw rod (2) is inserted into the inside of the slideway (5) from the left end of the slideway (5) and is rotatably connected to the right end of the inner wall of the slideway (5), the slideway (5) is a rectangular parallelepiped, the outer wall of the slideway (5) is sleeved with a cantilever tube (6), the cantilever tube (6) is a square tube, a sliding groove corresponding to the outer wall of the slideway (5) is arranged inside the cantilever tube (6), the inner wall of the cantilever tube (6) contacts the outer wall of the slideway (5), the top end of the inner wall of the cantilever tube (6) is fixedly connected to a connecting plate (7), the bottom end of the connecting plate (7) is inserted into the inner wall of the slideway (5) from the top end of the slideway (5), and the bottom end of the connecting plate (7) is inserted into the inner wall of the slideway (5) from the top end of the slideway (5). Internally, the bottom of the connecting plate (7) and the circumferential outer wall of the screw rod (2) are connected by threads, the top of the slideway (5) is provided with a long hole for making way corresponding to the connecting plate (7), the left end of the screw rod (2) is fixedly connected with a worm wheel (8), the bottom end of the worm wheel (8) is meshed with a worm (9), the right end of the worm wheel (9) is rotatably connected to the upper left end of the support column (4), the left end of the worm wheel (9) is fixedly connected with a driven wheel (10), the middle part of the top end of the bottom plate (1) is fixedly connected with a vertical plate (11), the upper left end of the vertical plate (11) is rotatably connected with a driving wheel (12), the circumferential outer wall of the driving wheel (12) and the circumferential outer wall of the driven wheel (10) are connected by the connecting belt (3), the right part of the bottom end of the cantilever tube (6) is fixedly connected with an extension plate (13), and the bottom end of the extension plate (13) is fixedly connected with a hook (14); The trigger rod (15) is also provided with a clearance cavity inside the screw rod (2), the right end of the trigger rod (15) is inserted into the inside of the screw rod (2) from the left end of the screw rod (2), and the right end of the trigger rod (15) is fixedly connected to a trigger plate (16), the top right part of the trigger plate (16) is provided with an inclined surface inclined from the upper left to the lower right, the right side of the trigger plate (16) is provided with a lifting plate (17), and the bottom left part of the lifting plate (17) is provided with a The top left part and the top right part of the lifting plate (17) are fixedly connected to the limiting shaft (18), the top end of each limiting shaft (18) passes through the upper part of the screw (2) and the upper part of the slideway (5) from the inside of the screw (2) in sequence, and the circumferential outer wall of the limiting shaft (18) is slidably connected to the upper part of the screw (2) and the upper part of the slideway (5), and the top end of the inner wall of the cantilever tube (6) is transversely arranged with a plurality of limiting grooves corresponding to the limiting shaft (18); The circumferential outer wall of each of the limit shafts (18) is provided with a spring (19), the top end of each of the springs (19) is in contact with the top end of the inner wall of the screw rod (2), the bottom end of each of the springs (19) is in contact with the top end of the lifting plate (17), and the spring (19) is in a compressed state; the left end of the driving wheel (12) is fixedly connected with a handle (20); A frame plate (21) is fixedly connected to the left portion of the top end of the slideway (5), a first roller (22) is rotatably connected to the rear end of the frame plate (21), a first rope winding groove is provided on the circumferential outer wall of the first roller (22), a support plate (23) is fixedly connected to the left portion of the top end of the bottom plate (1), the support plate (23) is "L" shaped, a second roller (24) is rotatably connected to the upper portion of the rear end of the support plate (23), a second rope winding groove is provided on the circumferential outer wall of the second roller (24), a steel wire rope (25) is fixedly connected to the right portion of the top end of the cantilever tube (6), the outer wall of the steel wire rope (25) contacts the top end of the inner wall of the first rope winding groove, the outer wall of the steel wire rope (25) contacts the top end of the inner wall of the second rope winding groove, and a counterweight device is provided on the other end of the steel wire rope (25); The counterweight device comprises a support shaft (26), the other end of the steel wire rope (25) is fixedly connected to the top end of the support shaft (26), the bottom end of the support shaft (26) is fixedly connected to a limiting boss (27), and the top end of the limiting boss (27) is sleeved with a plurality of weight blocks (28); The middle part of the bottom plate (1) is provided with a long hole running through the front and back; A support seat (29) is provided at the lower side of the worm (9), a slot corresponding to the worm (9) is provided at the top of the support seat (29), an inner wall of the support seat (29) contacts the bottom end of the worm (9), a rib plate (30) is provided at the bottom end of the support seat (29), and the right end of the rib plate (30) and the right end of the support seat (29) are both fixedly connected to the upper left end of the support column (4).

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