Labor-saving manual material lifting cart

Abstract

The utility model discloses a labor-saving manual material lifting cart, and relates to the field of lifting equipment. The material lifting device comprises a frame, a lifting supporting frame is fixedly installed at one end of the top face of the frame, a lifting plate is installed on the lifting supporting frame in a sliding mode, a material lifting frame is fixedly installed on one side of the lifting plate, and a lifting mechanism capable of driving the lifting plate to slide in a lifting mode and a driving mechanism in transmission connection with the lifting mechanism are further installed on the lifting supporting frame. The driving mechanism comprises an outer supporting pipe, a rotating shaft is rotationally installed in the outer supporting pipe, one end of the rotating shaft is in transmission connection with the lifting mechanism, a crank is fixedly installed at the other end of the rotating shaft, a ratchet wheel is further fixedly installed on the rotating shaft, and a pawl capable of locking the ratchet wheel in one direction is installed on the outer supporting pipe. When the crank is rotated and the rotating shaft and the lifting mechanism are matched to drive the material lifting frame to ascend to lift materials, the ratchet wheel and the pawl can be matched to lock the material lifting frame in a one-way mode, and the material lifting frame is prevented from falling in the ascending process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of hoisting equipment, and particularly relates to a labor-saving hand material lifting cart. BACKGROUND

[0002] The hand material lifting cart is a simple device for realizing vertical or horizontal material carrying through manual operation, and is suitable for small-batch and low-frequency carrying scenes, and is particularly flexible in a limited space. In the prior art, when the material is driven to be manually lifted through the handle of the hand material lifting cart, the handle is continuously subjected to the gravity of the material, so that manual force needs to be continuously applied to the handle to prevent the material from falling, so that the material is more laborious to lift. SUMMARY

[0003] In view of the problems in the related art, the utility model provides a labor-saving hand material lifting cart to overcome the above technical problems in the prior art.

[0004] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0005] The utility model discloses a labor-saving hand material lifting cart, which comprises a frame, one end of the top surface of the frame is fixedly installed with a lifting support frame, a lifting plate is slidably installed on the lifting support frame, a material lifting frame is fixedly installed on one side of the lifting plate, a lifting mechanism capable of driving the lifting plate to slide up and down and a driving mechanism in transmission connection with the lifting mechanism are further installed on the lifting support frame.

[0006] The driving mechanism comprises an outer support pipe, a rotating shaft is rotatably installed in the inner portion of the outer support pipe, one end of the rotating shaft is in transmission connection with the lifting mechanism, a handle is fixedly installed at the other end of the rotating shaft, a ratchet wheel is further fixedly installed on the rotating shaft, and a pawl capable of one-way locking the ratchet wheel is installed on the outer support pipe.

[0007] Further, the lifting mechanism comprises a chain and two sprockets, one of the sprockets is fixedly installed on the inner side end of the rotating shaft, the other sprocket is rotatably installed on the top surface of the frame, the chain is transmissionally installed between the two sprockets, a connecting plate is fixedly installed on one side of the lifting plate, and one end of the connecting plate is fixedly connected with one side of the chain.

[0008] Further, the outer side end of the outer support pipe is fixedly installed with a mounting plate, a mounting shaft is fixedly installed at one end of the mounting plate, the pawl is rotatably installed on the mounting shaft, a limiting seat is further installed on the mounting shaft, an installation groove is arranged on one side of the bottom end of the limiting seat, and an elastic rod in abutment with the lower end of the pawl is installed in the installation groove.

[0009] Furthermore, a protective outer shell located on the outside of the chain is fixedly installed on the lifting support frame.

[0010] Furthermore, a handle is fixedly installed at the upper end of the lifting support frame.

[0011] Furthermore, guide wheels are rotatably mounted on both ends of the lifting plate, and guide grooves for the guide wheels to travel on both sides of the lifting support frame.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, when the rotating handle drives the material lifting frame to lift materials by rotating the shaft and lifting mechanism, the rotating shaft can be locked in one direction by ratchet and pawl to prevent the rotating shaft from reversing. Thus, the material lifting frame can be locked in one direction by locking the rotating shaft, preventing the material lifting frame from falling during the upward movement, improving the safety of material lifting, and making the material lifting process more labor-saving.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, the drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the manual material lifting trolley of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A;

[0018] Figure 3 This is the second three-dimensional structural diagram of the manual material lifting trolley of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point B;

[0020] Figure 5 This is the third three-dimensional structural diagram of the manual material lifting trolley of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point C;

[0022] Figure 7 It is the four-dimensional structure schematic view of the hand material lifting cart of the utility model;

[0023] Figure 8 It is the D place local amplification structure schematic view of the utility model Figure 7 .

[0024] In the figure: 1, frame; 2, lifting support frame; 3, protective shell; 4, handle; 5, crank; 6, material lifting frame; 7, lifting plate; 8, outer support tube; 9, ratchet; 10, rotating shaft; 11, pawl; 12, mounting plate; 13, mounting shaft; 14, limit seat; 15, elastic rod; 16, mounting groove; 17, chain wheel; 18, chain; 19, connecting plate; 20, guide wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model protection.

[0026] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0027] Please refer to Figures 1-8 The utility model discloses a labor-saving hand material lifting cart, which comprises a frame 1, one end of the top surface of the frame 1 is fixedly installed with a lifting support frame 2, a lifting plate 7 is slidably installed on the lifting support frame 2, a material lifting frame 6 is fixedly installed on one side of the lifting plate 7, a lifting mechanism capable of driving the lifting plate 7 to slide up and down and a driving mechanism in transmission connection with the lifting mechanism are further installed on the lifting support frame 2; the driving mechanism comprises an outer support tube 8, a rotating shaft 10 is rotatably installed in the inner portion of the outer support tube 8, one end of the rotating shaft 10 is in transmission connection with the lifting mechanism, the other end of the rotating shaft 10 is fixedly installed with a crank 5, a ratchet 9 is further fixedly installed on the rotating shaft 10, and a pawl 11 capable of one-way locking of the ratchet 9 is installed on the outer support tube 8.

[0028] When the material needs to be lifted, the material is placed on the material lifting frame 6, and then the rotating shaft 10 is rotated by the handle 5. The rotating shaft 10 drives the lifting plate 7 to move upwards during rotation through the lifting mechanism. At this time, the lifting plate 7 synchronously drives the material lifting frame 6 and the material to move upwards. At the same time, the ratchet 9 and the pawl 11 cooperate to rotate the rotating shaft 10 in one direction to limit and position it, preventing the rotating shaft 10 from reversing. Thus, the material lifting frame 6 can be locked in one direction by locking the rotating shaft 10 in one direction, preventing the material lifting frame 6 from falling during the upward movement, improving the safety of the material lifting process, and making the material lifting process more labor-saving.

[0029] Specifically, the lifting mechanism includes a chain 18 and two sprockets 17. One of the sprockets 17 is fixedly installed on the inner side end of the rotating shaft 10, and the other sprocket 17 is rotatably installed on the top surface of the frame 1. The chain 18 is drivingly installed between the two sprockets 17. One side of the lifting plate 7 is fixedly installed with a connecting plate 19, and one end of the connecting plate 19 is fixedly connected with one side of the chain 18.

[0030] When the rotating shaft 10 rotates, the sprocket 17 at one end of the rotating shaft 10 also rotates, driving the chain 18 to move up and down in a cycle. When the part of the chain 18 connected with the connecting plate 19 moves upwards, the chain 18 drives the lifting plate 7 and the material lifting frame 6 to move upwards through the connecting plate 19 to lift the material. When the connecting plate 19 moves to the position of the upper sprocket 17, the material lifting frame 6 reaches the highest position.

[0031] Specifically, the outer side end of the outer support pipe 8 is fixedly installed with a mounting plate 12, one end of the mounting plate 12 is fixedly installed with a mounting shaft 13, and the pawl 11 is rotatably installed on the mounting shaft 13. A limiting seat 14 is also installed on the mounting shaft 13. One side of the bottom end of the limiting seat 14 is provided with a mounting groove 16, and the inside of the mounting groove 16 is installed with an elastic rod 15 abutting against the lower end of the pawl 11. The limiting seat 14 and the elastic rod 15 cooperate to elastically abut and limit the pawl 11, so that the upper end of the pawl 11 always abuts against the ratchet 9. When the ratchet 9 reverses, the pawl 11 can quickly limit and lock the ratchet 9.

[0032] Specifically, the lifting support frame 2 is fixedly installed with a protective shell 3 outside the chain 18, which can protect the chain 18.

[0033] Specifically, the upper end of the lifting support frame 2 is fixedly installed with a handle 4, which facilitates the movement of the material lifting cart by pushing the handle 4.

[0034] Specifically, the two ends of the lifting plate 7 are rotatably installed with guide wheels 20, and the two sides of the lifting support frame 2 are provided with guide grooves for the guide wheels 20 to walk. Through the rolling cooperation of the guide wheels 20 and the guide grooves, the lifting plate 7 can be limited, so that the lifting movement of the lifting plate 7 is more stable, and the frictional resistance between the lifting plate 7 and the lifting support frame 2 can be reduced, so that the lifting plate 7 is more labor-saving when lifting.

[0035] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model.

Claims

1. A labor saving hand material lifting cart comprising a frame (1), characterized in that: One end of the top surface of the frame (1) is fixedly installed with a lifting support frame (2), the lifting support frame (2) is slidably installed with a lifting plate (7), one side of the lifting plate (7) is fixedly installed with a material lifting frame (6), the lifting support frame (2) is also installed with a lifting mechanism capable of driving the lifting plate (7) to slide up and down and a driving mechanism in transmission connection with the lifting mechanism. The driving mechanism comprises an outer support pipe (8), the inner side of the outer support pipe (8) is rotatably installed with a rotating shaft (10), one end of the rotating shaft (10) is in transmission connection with the lifting mechanism, the other end of the rotating shaft (10) is fixedly installed with a crank (5), the rotating shaft (10) is also fixedly installed with a ratchet wheel (9), the outer support pipe (8) is installed with a pawl (11) capable of one-way locking the ratchet wheel (9).

2. A labor saving hand operated material lifting cart according to claim 1, characterized in that: The lifting mechanism comprises a chain (18) and two sprockets (17), one of the sprockets (17) is fixedly installed on the inner side of the rotating shaft (10), the other sprocket (17) is rotatably installed on the top surface of the frame (1), the chain (18) is in transmission installation between the two sprockets (17), one side of the lifting plate (7) is fixedly installed with a connecting plate (19), one end of the connecting plate (19) is fixedly connected with one side of the chain (18).

3. A labor saving hand operated material lifting cart according to claim 1, wherein: The outer side of the outer support pipe (8) is fixedly installed with a mounting plate (12), one end of the mounting plate (12) is fixedly installed with a mounting shaft (13), the pawl (11) is rotatably installed on the mounting shaft (13), the mounting shaft (13) is also installed with a limiting seat (14), one side of the bottom end of the limiting seat (14) is provided with a mounting groove (16), the inside of the mounting groove (16) is installed with an elastic rod (15) in abutment with the lower end of the pawl (11).

4. A labor saving hand operated material lifting cart according to claim 2, characterized in that: The lifting support frame (2) is fixedly installed with a protective shell (3) outside the chain (18).

5. A labor saving hand operated material lifting cart according to claim 1, wherein: The upper end of the lifting support frame (2) is fixedly installed with a handle (4).

6. A labor saving hand operated material lifting cart as defined in claim 1 wherein: Both ends of the lifting plate (7) are rotatably installed with guide wheels (20), both sides of the lifting support frame (2) are provided with guide grooves for the guide wheels (20) to walk.

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