Handheld electric lifting device

Abstract

The utility model discloses a handheld electric lifting device which comprises a driving piece and a jacking executing piece in transmission connection with the output end of the driving piece. The jacking execution piece comprises a frame body, a lead screw rotationally assembled on the frame body, a lead screw nut assembled on the lead screw and a jacking sleeve fixedly arranged on the frame body. The first end part of the screw rod is in transmission connection with the output end of the driving piece so as to do rotary motion under the driving of the driving piece; the jacking sleeve is close to the second end of the lead screw and comprises an inner sleeve fixedly arranged on the frame body and perpendicular to the lead screw and an outer sleeve arranged on the inner sleeve in a sleeving mode. A connecting rod is hinged between the side wall of the outer sleeve and the lead screw nut. The lifting jack has the advantages of being easy to manufacture, low in cost and convenient to operate, is suitable for building construction sites, and can replace a jack to lift or temporarily support equipment or structures.

Description

Technical Field

[0001] The utility model relates to a lifting tool, in particular to a handheld electric lifting device. Background Art

[0002] At construction sites for power plants, substations, and other facilities, heavy equipment often needs to be lifted or temporarily supported. This is currently accomplished using jacks. For example, when installing transformers, generators, and other equipment, jacks can help adjust the height and position of the equipment or structure to ensure it meets design requirements.

[0003] However, the use of jacks to lift or temporarily support heavy equipment at construction sites often has the following problems in actual application:

[0004] 1. In the actual project budget, if the demand for jacks is underestimated, resulting in insufficient number of jacks, workers will need to spend more time and manpower to manually lift heavy objects, which increases the workload and multiplies the risk of accidents.

[0005] Second, due to the limited space for the jack, when the space is small, the jack may not be able to be used normally. In this case, workers are often required to lift heavy objects manually. Utility Model Content

[0006] In order to solve the above deficiencies in the prior art, the present invention aims to provide a handheld electric lifting device to replace the jack for lifting or temporarily supporting equipment or structures.

[0007] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a handheld electric lifting device, comprising a driving member and a lifting actuator transmission-connected to the output end of the driving member; wherein the lifting actuator comprises a frame, a screw rotatably mounted on the frame, a screw nut mounted on the screw, and a lifting sleeve fixed to the frame;

[0008] The first end of the screw rod is in transmission connection with the output end of the driving member so as to perform rotational motion under the drive of the driving member;

[0009] The lifting sleeve is adjacent to the second end of the screw rod and includes an inner sleeve fixed on the frame and perpendicular to the screw rod and an outer sleeve sleeved on the inner sleeve;

[0010] A connecting rod is hinged between the side wall of the outer sleeve and the screw nut.

[0011] As defined in the present invention, the frame includes a base plate and a first support and a second support fixedly mounted at two ends of the base plate;

[0012] The screw rod is rotatably assembled between the first support column and the second support column through a bearing.

[0013] As a further limitation of the present invention, a top plate is fixedly provided on the top end of the outer sleeve.

[0014] As another limitation of the present invention, the driving member is an electric hand drill.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] This utility model has a simple structure and is easy to manufacture. Materials can be readily obtained at construction sites, making them inexpensive. When a shortage of jacks is present, workers can fabricate this utility model on-site to lift or temporarily support equipment or structures. Furthermore, the lifting actuator (i.e., the force-applying portion) of this utility model is relatively small, making it suitable for use in confined spaces. Furthermore, this embodiment can be handheld, easily achieving vertical or horizontal lifting of equipment or structures.

[0017] The utility model is suitable for construction sites and is used for lifting or temporarily supporting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of the first hinged connection seat in an embodiment of the present utility model;

[0021] In the figure: 1. electric hand drill; 2. bottom plate; 3. first pillar; 4. second pillar; 5. screw; 6. screw nut; 7. inner sleeve; 8. outer sleeve; 9. top plate; 10. first hinged connector; 11. second hinged connector; 12. connecting rod; 13. mounting plate; 14. first vertical plate; 15. second vertical plate; 16. pin. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0023] Embodiment A handheld electric lifting device

[0024] like Figure 1 As shown, this embodiment includes a driving member and a lifting actuator that is transmission-connected to the output end of the driving member.

[0025] The driving member adopts the hand electric drill 1 in the prior art, and can also adopt a motor according to actual conditions.

[0026] The lifting actuator includes a frame, a screw 5, a screw nut 6, and a lifting sleeve. The frame includes a base plate 2 and first and second pillars 3 and 4 fixedly mounted at opposite ends of the base plate 2. In this embodiment, the base plate 2 is made of steel plate, and the first and second pillars 3 and 4 are rectangular structures welded from the steel plates. In this embodiment, each of the first and second pillars 3 and 4 is fixedly provided with a bearing. Depending on the actual situation, two bearings can also be directly welded to the ends of the base plate 2 to replace the first and second pillars 3 and 4, respectively.

[0027] The screw rod 5 is rotatably mounted between the first support 3 and the second support 4 via the aforementioned bearings and is disposed along the length of the base plate 2. The first end of the screw rod 5 extends outside the first support 3 to be fixedly connected to the output end of the driver. Driven by the driver, the screw rod 5 rotates on the frame.

[0028] The screw nut 6 is assembled on the screw 5 .

[0029] The lifting sleeve is fixed on the frame, adjacent to the second end of the screw rod 5. Figure 1 As shown, the lifting sleeve includes an inner sleeve 7 fixed to the top of the second pillar 4 and an outer sleeve 8 sleeved on the inner sleeve 7. The inner sleeve 7 and the outer sleeve 8 are made of round steel pipes of different diameters. In order to increase the contact area with the object, a top plate 9 is also fixed to the top of the outer sleeve 8 in this embodiment.

[0030] The top plate 9 is made of a steel plate.

[0031] Furthermore, the axis of the inner sleeve 7 is perpendicular to the axis of the screw rod 5 ; a connecting rod 12 is hinged between the side wall of the outer sleeve 8 and the screw rod nut 6 .

[0032] Specifically, a first hinged connection seat 10 is welded and fixed on the side wall of the outer sleeve 8, and a second hinged connection seat 11 is welded and fixed on the screw nut 6. The first hinged connection seat 10 and the second hinged connection seat 11 have the same structure. The structure of the first hinged connection seat 10 is described as an example. Figure 2 As shown, the first hinged connection seat 10 includes a mounting plate 13 for welding and fixing to the side wall of the outer sleeve 8, a first vertical plate 14 and a second vertical plate 15 fixed relatively at both ends of the mounting plate 13, and a pin 16 fixed transversely to the first vertical plate 14 and the second vertical plate 15.

[0033] The connecting rod 12 is made of a round steel pipe, and both ends are provided with through holes adapted to fit the pins 16 .

[0034] By inserting the pin 16 of the first hinged connecting seat 10 into the through hole at one end of the connecting rod 12, the connecting rod 12 can be hinged on the side wall of the outer sleeve 8; by inserting the pin 16 of the second hinged connecting seat 11 into the through hole at the other end of the connecting rod 12, the connecting rod 12 can be hinged on the screw nut 6.

[0035] Taking the lifting of an object as an example, the usage of this embodiment is briefly introduced: first, place this embodiment below the object to be lifted, with the frame base 2 in contact with the ground (or other plane opposite the object to be lifted) to ensure stability, and point the top of the outer sleeve 8 toward the object to be lifted; then, drive the screw 5 to rotate using the hand drill 1, causing the screw nut 6 to move toward the second support 4. Under the restriction of the connecting rod 12, the outer sleeve 8 moves upward relative to the inner sleeve 7, and then force is applied to the object through the top of the outer sleeve 8 to lift it. When it is necessary to cancel the lifting of the object, drive the screw 5 in reverse using the hand drill 1, causing the screw nut 6 to move toward the first support 3. Under the restriction of the connecting rod 12, the outer sleeve 8 will move downward relative to the inner sleeve 7, and the force applied to the object can be canceled.

[0036] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A handheld electric lifting device, characterized in that: The jacking actuator comprises a driving member and a lifting actuator connected to the output end of the driving member; wherein the lifting actuator comprises a frame, a screw rotatably mounted on the frame, a screw nut mounted on the screw, and a lifting sleeve fixed on the frame; The first end of the screw rod is in transmission connection with the output end of the driving member so as to perform rotational motion under the drive of the driving member; The lifting sleeve is adjacent to the second end of the screw rod and includes an inner sleeve fixed on the frame and perpendicular to the screw rod and an outer sleeve sleeved on the inner sleeve; A connecting rod is hinged between the side wall of the outer sleeve and the screw nut.

2. The handheld electric lifting device according to claim 1, characterized in that: The frame includes a bottom plate and a first support and a second support fixedly arranged at two ends of the bottom plate; The screw rod is rotatably assembled between the first support column and the second support column through a bearing.

3. The handheld electric lifting device according to claim 2, characterized in that: A top plate is fixedly arranged on the top end of the outer sleeve.

4. The handheld electric lifting device according to any one of claims 1 to 3, characterized in that: The driving part is an electric hand drill.

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