Portable hoisting device for truck

Abstract

The utility model belongs to the technical field of hoisting equipment, and particularly discloses a portable hoisting device for a truck, which comprises two support rods vertically arranged on a frame; the lifting frame is vertically arranged on the two supporting rods; the two fixed footstands are respectively arranged at the bottoms of the two supporting rods and are used for fixing the supporting rods on the frame; the hoisting assembly is rotationally arranged in the hoisting frame and used for hoisting a workpiece; the manual driving assembly is arranged at one end of the hoisting frame, connected with the hoisting assembly and used for driving the hoisting assembly to rotate; the locking assembly is arranged on the hoisting assembly and used for preventing the hoisting assembly from reversely rotating and descending when the workpiece is pulled upwards; the portable hoisting device for the truck has the advantages of being time-saving, labor-saving, high in disassembly and assembly efficiency and convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting equipment, and in particular relates to a portable hoisting device for a truck. Background Art

[0002] When a field truck breaks down in the field, it is rather troublesome to replace and repair the gearbox, especially when disassembling it. It is difficult to lift it by manpower, and general lifting equipment requires electric or hydraulic drive, which is extremely inconvenient to carry and cannot be used in complex field environments, affecting the efficiency of truck maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a portable truck lifting device to solve the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A portable truck-mounted lifting device comprising:

[0006] Two support rods are vertically arranged on the frame;

[0007] The hanging frame is vertically set on two supporting rods;

[0008] Two fixed feet, respectively provided at the bottom of the two support rods, for fixing the support rods to the frame;

[0009] A hoisting assembly is rotatably arranged in the hoisting frame and is used to hoist the workpiece;

[0010] A manual drive assembly is provided at one end of the hanging frame and is connected to the hanging assembly, and is used to drive the rotation of the hanging assembly;

[0011] The locking assembly is provided on the lifting assembly and is used to prevent the lifting assembly from reversing and descending when the workpiece is pulled upward.

[0012] Furthermore, the lifting assembly includes a rotating shaft rotatably arranged in the lifting frame, a roller is coaxially fixedly arranged in the middle of the rotating shaft, a lifting rope is wrapped around the roller, a hook is provided at the free end of the lifting rope, a manual drive assembly is located at one end of the rotating shaft, and a locking assembly is provided on the rotating shaft.

[0013] Furthermore, the fixed foot seat includes a movable seat and a fixed seat, and the movable seat and the fixed seat are respectively arranged at the bottom of the two support rods;

[0014] The movable seat includes a fixed support plate fixed to the bottom of a support rod, a first right-angle connecting plate is provided at the bottom of the fixed support plate, a movable support plate is fixedly provided at the bottom of the first right-angle connecting plate, a plurality of fixing screw holes are opened on the first right-angle connecting plate, fixing bolts are inserted into the fixing screw holes, and the movable support plate is fixedly connected to the first right-angle connecting plate by the fixing bolts, a waist-shaped long hole is opened on the first right-angle connecting plate, and the fixed support plate and the first right-angle connecting plate are connected by an adjusting bolt 34 passing through the waist-shaped long hole;

[0015] The fixing seat includes a second right-angle connecting plate, a movable support plate and a fixing bolt. The movable support plate is arranged below the second right-angle connecting plate. The second right-angle connecting plate is arranged at the bottom of another support rod. Several fixing screw holes are opened on the second right-angle connecting plate. Circular holes corresponding to the fixing screw holes are opened on the movable support plate. The fixing bolts pass through the fixing screw holes and the corresponding circular holes.

[0016] Furthermore, the support rod includes a sleeve rod and a telescopic rod, a telescopic hole is opened along the axis of the sleeve rod, an internal thread is set near the opening position in the telescopic hole, and an external thread is set at one end of the telescopic rod, and the external thread of the telescopic rod matches the internal thread of the telescopic hole.

[0017] Furthermore, sleeves are respectively provided at both ends of the lower surface of the lifting frame, the upper end of the support rod is inserted into the sleeve, a pin hole is opened on the sleeve, a limit pin is inserted into the pin hole, and the support rod is fixedly connected to the sleeve through the limit pin.

[0018] Furthermore, the manual drive assembly includes a shell, an oil filling hole is provided on one side of the shell, an oil plug is provided on the oil filling hole, the shell is set on the lifting frame, and a worm wheel and a worm that mesh with each other are rotatably provided in the shell, the worm wheel is coaxially fixedly connected to the rotating shaft, the worm is coaxially connected to a worm shaft pin, and the end of the worm shaft pin away from the worm is coaxially connected to a clamping sleeve, a clamping hole is coaxially opened on the clamping sleeve, and a driving part is connected in the clamping hole.

[0019] Furthermore, the driving member is a Z-shaped hand crank handle, the card hole is a regular hexagon, one end of the hand crank handle is a regular hexagonal plug structure and is inserted into the card hole, and the other end of the hand crank handle is provided with a rotating handle.

[0020] Furthermore, the driving member is a portable electric hand drill, and the output end of the portable electric hand drill is provided with a drill bit that matches the clamping hole.

[0021] Furthermore, the locking assembly includes a locking wheel and a locking plate. The locking wheel is coaxially connected to the rotating shaft. A circle of ratchet is provided on the outer edge of the locking wheel. The locking plate is hinged in the lifting frame through a hinge shaft, and one end of the locking plate abuts against the ratchet.

[0022] Beneficial effect: When in use, the utility model first installs the lifting frame on the top of the two support rods, and fixes the fixed foot to the frame with bolts to achieve the installation of the lifting equipment. Afterwards, the driving part is inserted into the clamping hole, and the worm is driven to rotate by the worm shaft pin, and the worm drives the worm wheel to rotate, thereby rotating the rotating shaft. The roller on the rotating shaft slowly lowers the lifting rope to facilitate the hook to tie and hook the gearbox. Then, the driving part is rotated in the opposite direction, so that the roller lifts the gearbox through the lifting rope, thereby completing the entire lifting operation process. The entire process saves time and effort, saves manpower, improves the efficiency of maintenance and disassembly, and is easy to disassemble and assemble, easy to carry, and suitable for field use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main view of the overall structure of the utility model;

[0024] Figure 2 This is a top view of the hanging frame in the utility model;

[0025] Figure 3 It is a cross-sectional view of the support rod in the present utility model;

[0026] Figure 4 This is a schematic structural diagram of the manual drive assembly in the present utility model;

[0027] Figure 5 This is a schematic structural diagram of the locking assembly in the present invention;

[0028] Figure 6 This is a bottom view of the first right-angle connecting plate in the present utility model.

[0029] Figure markings: 1. support rod; 11. sleeve rod; 12. telescopic rod; 13. telescopic hole; 14. internal thread; 15. external thread; 2. lifting frame; 21. sleeve; 22. pin hole; 23. limit pin; 3. fixed foot; 31. fixed support plate; 32. first right-angle connecting plate; 33. waist-shaped long hole; 34. adjusting bolt; 35. fixing screw hole; 36. second right-angle connecting plate; 37. movable support plate; 38. fixing bolt; 4. rotating shaft; 5. roller; 6. lifting rope; 7. hook; 8. manual drive assembly; 81. housing; 82. worm gear; 83. worm; 84. worm shaft pin; 85. ferrule; 86. clamping hole; 87. oil plug; 9. locking assembly; 91. locking wheel; 92. locking plate; 93. ratchet; 94. articulated shaft; 10. driving part. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0031] Example:

[0032] like Figures 1-6 As shown, this embodiment provides a portable truck lifting device, including two support rods 1 and a lifting frame 2, the lower ends of the two support rods 1 are provided with fixed feet 3, the fixed feet 3 are fixed to the vehicle frame by bolts, the upper ends of the support rods 1 are detachably connected to the lifting frame 2, initially, they are placed separately, when lifting is required, the lifting frame 2 can be installed on the top ends of the two support rods 1, and the support rods 1 can also be fixed to the vehicle frame through the fixed feet 3, the lifting frame 2 is horizontally arranged at the upper ends of the two support rods 1, a rotating shaft 4 is horizontally arranged on the lifting frame 2, a winding roller 5 is coaxially fixed in the middle of the rotating shaft 4, a pulling rope 6 is wound around the winding roller 5, and the pulling rope 6 is automatically A hook 7 is provided at the end, and a manual drive component 8 is connected to one end of the rotating shaft 4. The manual drive component 8 includes a shell 81, an oil filling hole is provided on one side of the shell 81, and an oil plug 87 is provided on the oil filling hole. The shell 81 is set on the lifting frame 2, and a worm wheel 82 and a worm 83 are rotatably provided in the shell 81. The worm wheel 82 is coaxially fixedly connected to the rotating shaft 4, and the worm 83 is meshed with the worm wheel 82. The worm 83 is coaxially connected to a worm shaft pin 84, and the worm shaft pin 84 is coaxially connected to a clamping sleeve 85 at one end away from the worm 83. A clamping hole 86 with at least an inner hexagonal shape is coaxially opened on the clamping sleeve 85. A circular hole is opened at a position corresponding to the opening on the shell 81, and the clamping hole 86 is connected to a driving member 10.

[0033] The working process and principle of the above structure are as follows:

[0034] When in use, first install the lifting frame 2 on the top of the two support rods 1, and fix the fixed foot 3 to the frame with bolts to realize the installation of the lifting equipment. After that, the rotating shaft 4 is driven to rotate by the manual drive component 8. The roller 5 on the rotating shaft 4 slowly lowers the pulling rope 6 to facilitate the hook 7 to tie and hook the gearbox. Then, the driving part 10 is rotated in the opposite direction, so that the roller 5 lifts the gearbox through the pulling rope 6, realizing the entire lifting operation process. The whole process saves time and effort, saves manpower, improves the efficiency of maintenance and disassembly, and is easy to disassemble and assemble, easy to carry, and suitable for field use.

[0035] In another embodiment of the present invention, Figure 1 and Figure 6 As shown, the fixed foot seat 3 includes a movable seat and a fixed seat, wherein the lower end of one of the support rods 1 is provided with a movable seat, and the movable seat includes a fixed support plate 31, a movable support plate 37, a fixing bolt 38 and a first right-angle connecting plate 32, and the movable support plate 37 is provided below the first right-angle connecting plate 32, and a waist-shaped long hole 33 is provided in the central position of the horizontal section of the first right-angle connecting plate 32 along a direction perpendicular to the vertical section. The fixed support plate 31 is fixedly connected to the lower end of the support rod 1, and the fixed support plate 31 is connected to the first right-angle connecting plate 32 by an adjusting bolt 34 passing through the waist-shaped long hole 33. A plurality of fixing screw holes 35 are provided on the horizontal section of the first right-angle connecting plate 32. A circular hole is opened on the support plate 37 corresponding to the fixing bolt 35, and the fixing bolt 38 passes through the fixing screw hole 35 and the corresponding circular hole; the fixing seat includes a second right-angle connecting plate 36, a movable support plate 37 and a fixing bolt 38, and a circular hole is opened on the movable support plate 37 corresponding to the fixing screw hole 35, and the fixing bolt 38 passes through the fixing screw hole 35 and the corresponding circular hole, and a second right-angle connecting plate 36 is provided at the lower end of another support rod 1, and the horizontal section of the second right-angle connecting plate 36 is fixedly connected to the support rod 1, and a plurality of fixing screw holes 35 are opened on the second right-angle connecting plate 36 to cooperate with the frame, and the inner sides of the first right-angle connecting plate 32 and the second right-angle connecting plate 36 are arranged relatively to each other.

[0036] The setting of the movable seat and the fixed seat can adjust the distance between the fixed foot seats 3, which is suitable for frames of different widths. The length of the first right-angle connecting plate 32 is greater than the length of the second right-angle connecting plate 36. The specific process is that after the first right-angle connecting plate 32 and the second right-angle connecting plate 36 are fixed to the frame, the position of the support rod 1 with the fixed support plate 31 is adjusted along the waist-shaped long hole 33 according to the width of the frame so that it can be adjusted to the installation width of the hanging frame 2, and then the hanging frame 2 is installed on the two support rods 1. The setting of the fixed support plate 31 can ensure that the support rod 1 has sufficient contact area with the first right-angle connecting plate 32, so as to ensure that the supporting pressure will not be too concentrated.

[0037] In another embodiment of the present invention, Figure 3 As shown, the support rod 1 includes a sleeve rod 11 and a telescopic rod 12. A telescopic hole 13 is opened on the sleeve rod 11 along the axis. An internal thread 14 is provided near the opening position in the telescopic hole 13. An external thread 15 is provided at one end of the telescopic rod 12. The external thread 15 of the telescopic rod 12 cooperates with the internal thread 14 of the telescopic hole 13. The range length of the external thread 15 is greater than the range length of the internal thread 14. Such an arrangement will prevent the telescopic rod 12 from being trapped in the telescopic hole and unable to be pulled out. The length of the telescopic hole 13 is less than the length of the telescopic rod 12. The other end of the telescopic rod 12 is detachably connected to the hanging frame 2.

[0038] Through the arrangement of the sleeve rod 11 and the telescopic rod 12, the telescopic rod 12 cooperates with the internal thread 14 of the telescopic hole 13 through the external thread 15, so that the length of the support rod 1 can be adjusted. At the same time, when storing, the telescopic rod 12 can be retracted into the telescopic hole 13 of the sleeve rod 11 to save space.

[0039] In another embodiment of the present invention, Figure 1 and Figure 2 As shown, the hanging frame 2 has a rectangular frame structure. The hanging frame 2 is horizontally arranged and a sleeve 21 is provided at each end of its lower surface. The upper end of the telescopic rod 12 is sleeved in the sleeve 21. A bearing is provided at each end of the hanging frame 2 corresponding to the position where the rotating shaft 4 is rotatably connected. The rotating shaft 4 is rotatably connected to the bearing. One end of the rotating shaft 4 extends out of the hanging frame 2 and is coaxially connected to the worm gear 82.

[0040] The hanging frame 2 can be quickly mounted on the supporting rod 1 through the sleeve 21 to achieve rapid assembly, and the setting of the bearing facilitates the rotation of the rotating shaft 4.

[0041] In another embodiment of the present invention, Figure 2 and Figure 5 As shown, a locking assembly 9 is provided on the rotating shaft 4 and the hanging frame 2, and the locking assembly 9 includes a locking wheel 91 and a locking plate 92. The locking wheel 91 is coaxially connected to the rotating shaft 4, and a circle of ratchet 93 is provided on the outer edge of the locking wheel 91. A hinge shaft 94 is provided on the locking plate 92 and is hinged to the inner side of the hanging frame 2 through the hinge shaft 94. The locking plate 92 has a V-shaped obtuse angle structure and the hinge shaft 94 is provided on both sides of the angle. One end of the locking plate 92 abuts against the ratchet 93, and the other end is located below the hanging frame 2. The length of one end of the locking plate 92 abutting against the ratchet 93 is greater than the length of the other end.

[0042] The locking wheel 91 is coaxially connected to the rotating shaft 4. When the rotating shaft 4 lowers the pulling rope 6, the lower end of the locking plate 92 is pressed by the human hand, so that the locking plate 92 is separated from the ratchet 93. When the rotating shaft 4 pulls the pulling rope 6 upward, the locking plate 92 contacts the ratchet 93, so that it can only rotate in one direction to prevent it from retreating.

[0043] In another embodiment of the present invention, the driving member 10 is a Z-shaped crank handle, one end of which is a regular hexagonal plug structure and is inserted into the clamping hole 86, and the other end is provided with a rotating handle. The crank handle is conventional in the art and will not be described in detail here.

[0044] The driving force can be manually provided by the hand crank handle, and the power is transmitted to the worm shaft pin 84 by the hand crank handle, thereby realizing power output.

[0045] In another embodiment of the present invention, the driving member 10 is a portable electric drill, and the output end of the portable electric drill is provided with a drill bit that matches the clamping hole 86. The portable electric drill is conventional in the art and will not be described in detail herein.

[0046] Achieve power output through a portable electric hand drill to reduce manual labor.

[0047] In another embodiment of the present invention, Figure 1 As shown, four pin holes 22 are opened on the circumference of the sleeve 21. The four pin holes 22 are convenient for quickly aligning with the through hole and inserting the limit pin 23. The limit pin 23 is set in the pin hole 22. A through hole is opened at the position corresponding to the pin hole 22 at the top of the support rod 1, and the limit pin 23 passes through the through hole.

[0048] The pin hole 22 cooperates with the limiting pin 23 to limit the position of the sleeve 21 and the support rod 1 to prevent loosening.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A portable truck lifting device, characterized in that: include: Two support rods (1) are vertically arranged on the vehicle frame; A hanging frame (2) is vertically arranged on the two support rods (1); Two fixed footrests (3) are respectively arranged at the bottom of the two support rods (1) and are used to fix the support rods (1) on the vehicle frame; A hoisting assembly is rotatably arranged in the hoisting frame (2) and is used for hoisting a workpiece; A manual drive assembly (8) is provided at one end of the hanging frame (2) and is connected to the hanging assembly, and is used to drive the rotation of the hanging assembly; The locking assembly (9) is arranged on the hoisting assembly and is used to prevent the hoisting assembly from reversing and descending when the workpiece is pulled upward.

2. The portable truck lifting device according to claim 1, characterized in that: The hoisting assembly comprises a rotating shaft (4) rotatably arranged in a hoisting frame (2), a roller (5) coaxially fixedly arranged in the middle of the rotating shaft (4), a pulling rope (6) wound on the roller (5), a hook (7) provided at the free end of the pulling rope (6), a manual drive assembly (8) located at one end of the rotating shaft (4), and a locking assembly (9) provided on the rotating shaft (4).

3. The portable truck lifting device according to claim 1, characterized in that: The fixed foot seat (3) comprises a movable seat and a fixed seat, and the movable seat and the fixed seat are respectively arranged at the bottom of the two support rods (1); The movable seat includes a fixed support plate (31) fixed to the bottom of a support rod (1), a first right-angle connecting plate (32) is provided at the bottom of the fixed support plate (31), a movable support plate (37) is fixedly provided at the bottom of the first right-angle connecting plate (32), a plurality of fixing screw holes (35) are provided on the first right-angle connecting plate (32), fixing bolts (38) are inserted into the fixing screw holes (35), and the movable support plate (37) is fixedly connected to the first right-angle connecting plate (32) through the fixing bolts (38), a waist-shaped long hole (33) is provided on the first right-angle connecting plate (32), and the fixed support plate (31) and the first right-angle connecting plate (32) are connected by an adjusting bolt (34) passing through the waist-shaped long hole (33); The fixing seat comprises a second right-angle connecting plate (36), a movable supporting plate (37) and a fixing bolt (38), wherein the movable supporting plate (37) is arranged below the second right-angle connecting plate (36), and the second right-angle connecting plate (36) is arranged at the bottom of another supporting rod (1), and a plurality of fixing screw holes (35) are opened on the second right-angle connecting plate (36), and circular holes are opened on the movable supporting plate (37) corresponding to the fixing screw holes (35), and the fixing bolts (38) pass through the fixing screw holes (35) and the corresponding circular holes.

4. The portable truck lifting device according to claim 3, characterized in that: The support rod (1) comprises a sleeve rod (11) and a telescopic rod (12); a telescopic hole (13) is provided on the sleeve rod (11) along an axis; an internal thread (14) is provided in the telescopic hole (13) near an opening position; an external thread (15) is provided at one end of the telescopic rod (12); the external thread (15) of the telescopic rod (12) matches the internal thread (14) of the telescopic hole (13).

5. The portable truck lifting device according to claim 1, characterized in that: Sleeves (21) are respectively provided at both ends of the lower surface of the hanging frame (2), the upper end of the support rod (1) is inserted into the sleeve (21), a pin hole (22) is opened on the sleeve (21), a limiting pin (23) is inserted into the pin hole (22), and the support rod (1) is fixedly connected to the sleeve (21) through the limiting pin (23).

6. The portable truck lifting device according to claim 2, characterized in that: The manual drive assembly (8) comprises a housing (81), one side of the housing (81) is provided with an oil filling hole, the oil filling hole is provided with an oil plug (87), the housing (81) is provided on the hanging frame (2), a worm wheel (82) and a worm (83) are rotatably provided in the housing (81), the worm wheel (82) is coaxially fixedly connected to the rotating shaft (4), the worm (83) is coaxially connected to a worm shaft pin (84), the end of the worm shaft pin (84) away from the worm (83) is coaxially connected to a clamping sleeve (85), a clamping hole (86) is coaxially opened on the clamping sleeve (85), and a driving member (10) is connected in the clamping hole (86).

7. The portable truck lifting device according to claim 6, characterized in that: The driving member (10) is a Z-shaped crank handle, the clamping hole (86) is a regular hexagon, one end of the crank handle is a regular hexagonal plug structure and is inserted into the clamping hole (86), and the other end of the crank handle is provided with a rotating handle.

8. The portable truck lifting device according to claim 6, characterized in that: The driving member (10) is a portable electric hand drill, and the output end of the portable electric hand drill is provided with a drill bit that matches the clamping hole (86).

9. The portable truck lifting device according to claim 2, characterized in that: The locking assembly (9) comprises a locking wheel (91) and a locking plate (92). The locking wheel (91) is coaxially connected to the rotating shaft (4). A circle of ratchet teeth (93) is provided on the outer edge of the locking wheel (91). The locking plate (92) is hinged in the hanging frame (2) via a hinge shaft (94), and one end of the locking plate (92) abuts against the ratchet teeth (93).

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