Narrow space object lifting device

Abstract

The utility model discloses a narrow space object hoisting device. The narrow space object hoisting device comprises a support frame, a bearing beam, a chain block and a connecting piece, the bearing beam is erected between the two supporting frames and provided with a plurality of lifting lugs, and the lifting lugs are connected with chain blocks; the supporting frame comprises a base, stand columns and a beam. The same supporting frame comprises two stand columns, the two stand columns are connected to the two ends of the base through connecting pieces, and the two ends of the cross beam are connected to the tops of the two stand columns through connecting pieces respectively. First connecting parts are arranged at the two ends of the bearing beam, and the two ends of the bearing beam are connected to the cross beams of the two supporting frames through the first connecting parts correspondingly; the first connecting part comprises a first connecting plate, a first connecting column and a first fixing plate; when the first connecting column is inserted into the first connecting hole, the first connecting plate can abut against the cross beam, and the first fixing plate can abut against the cross beam. The technical scheme provided by the utility model is practical and reliable, is convenient to disassemble and assemble, can lift heavy objects in a narrow space, and improves the carrying efficiency of the objects.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting and transportation, in particular to a hoisting device for objects in a narrow space. Background Art

[0002] During construction activities, heavy objects need to be moved to a designated location in a building for installation. In a construction environment with narrow space and many ground obstacles, it is difficult to move them manually, and when lifting machinery is difficult to reach, it is necessary to find a building structure support that can bear the weight of the object at the construction site to set up a lifting point for lifting the object, or it is necessary to set up a special object lifting device for lifting heavy objects. In reality, there are the following problems: (1) It is difficult to set up a lifting point, and it is often necessary to use a building or external support, etc., which is restricted by the external environment and difficult to set up a suitable lifting point; (2) It is difficult to cross obstacles. There are often many installation items at the installation construction site, and it is necessary to move heavy objects across obstacles, which makes construction difficult; (3) The space is narrow, the operating space is insufficient, and the operation is difficult; (4) The handling efficiency is low, and it may even cause personal injury, damage to goods, and the like. Therefore, the utility model proposes a narrow space object lifting device for lifting heavy objects in a narrow space. Utility Model Content

[0003] The main purpose of the utility model is to provide a narrow space object lifting device for lifting heavy objects in a narrow space.

[0004] To achieve the above-mentioned purpose, the narrow space object lifting device proposed by the utility model includes a support frame, a load-bearing beam, a hand chain hoist and a connecting piece; the load-bearing beam is erected between two of the support frames, and the load-bearing beam is provided with a plurality of lifting ears, and the lifting ears are connected to the hand chain hoist; the support frame includes a base, a column and a crossbeam; the same support frame includes two of the columns, and the two columns are connected to the two ends of the base through the connecting piece, and the two ends of the crossbeam are respectively connected to the tops of the two columns through the connecting piece; a first connecting hole is opened through the middle of the crossbeam; both ends of the load-bearing beam are provided with a first connecting part, and the two ends of the load-bearing beam are respectively connected to the two columns through the first connecting part The crossbeam of the support frame; the first connecting part includes a first connecting plate, a first connecting column and a first fixing plate; the load-bearing beam and the first connecting column are respectively arranged on both sides of the first connecting plate, and the load-bearing beam and the first connecting column are coaxial; the first connecting column is used to be inserted into the first connecting hole; the first fixing plate is L-shaped, and one end of the first fixing plate is connected to the end of the first connecting plate away from the first connecting column, when the first connecting column is inserted into the first connecting hole, the first connecting plate can abut against the crossbeam, and the first fixing plate can abut against the crossbeam, so that the load-bearing beam is fixed to the crossbeam; the hand hoist can be hung directly below the load-bearing beam.

[0005] Preferably, the first fixed plate includes a first side plate and a second side plate which are connected in sequence and perpendicular to each other; the first side plate is horizontally arranged and connected to the first connecting plate; the second side plate is vertically arranged and parallel to the first connecting plate; the first side plate can be fitted and abutted against the top wall of the beam; the second side plate can be fitted and abutted against the outer side wall of the beam; the first connecting plate can be fitted and abutted against the inner side wall of the beam.

[0006] Preferably, a second connecting part is provided at both ends of the base, and a second connecting part is horizontally penetrated and provided with a second connecting hole; a first connecting groove and a second connecting groove are provided at both ends of the column, and the column is also provided with a third connecting hole penetrating the first connecting groove, and a fourth connecting hole penetrating the second connecting groove; a third connecting part is provided at both ends of the beam, and a fifth connecting hole is horizontally penetrated and provided; the second connecting part is inserted into the first connecting groove, and the connecting member passes through the third connecting hole and the second connecting hole in sequence to fix the column to the base; the third connecting part is inserted into the second connecting groove, and the connecting member passes through the fourth connecting hole and the fifth connecting hole in sequence to fix the beam to the column.

[0007] Preferably, a connecting beam is provided between the columns of the two supporting frames which are directly opposite to each other, the connecting beam is perpendicular to the columns, the connecting beam is parallel to the bearing beam, and the connecting beam is lower than the bearing beam.

[0008] Preferably, a sixth connecting hole is provided through the middle of the column; fourth connecting parts are provided at both ends of the connecting beam, and the two ends of the connecting beam are respectively connected to the two columns of the support frames that are opposite to each other through the fourth connecting parts; the fourth connecting part includes a second connecting plate, a second connecting column and a second fixing plate; the connecting beam and the second connecting column are respectively arranged on both sides of the second connecting plate, and the connecting beam and the second connecting column are coaxial; the second connecting column is used to insert into the sixth connecting hole; the second fixing plate is L-shaped, and one end of the second fixing plate is connected to the end of the second connecting plate away from the second connecting column, and when the second connecting column is inserted into the sixth connecting hole, the second connecting plate can abut against the column, and the second fixing plate can abut against the column, so that the connecting beam is fixed to the column.

[0009] Preferably, the second fixed plate includes a third side plate and a fourth side plate which are connected in sequence and perpendicular to each other; the third side plate is vertically arranged and connected to the second connecting plate; the fourth side plate is vertically arranged and parallel to the second connecting plate; the third side plate can be fitted and abutted against one side wall of the column; the fourth side plate can be fitted and abutted against the other side wall of the column; the second connecting plate can be fitted and abutted against the other side wall of the column.

[0010] Preferably, the first connecting portion further includes a first oblique brace, two ends of which respectively connect the first connecting plate and the load-bearing beam; the fourth connecting portion further includes a second oblique brace, two ends of which respectively connect the second connecting plate and the connecting beam.

[0011] Preferably, the number of the third connection holes and the second connection holes is multiple, and the third connection holes and the second connection holes correspond one-to-one; the number of the fourth connection holes and the fifth connection holes is multiple, and the fourth connection holes and the fifth connection holes correspond one-to-one.

[0012] Preferably, the first connecting column and the second connecting column are both cylinders; the length of the first connecting column is greater than or equal to the depth of the first connecting hole; the length of the second connecting column is greater than or equal to the depth of the sixth connecting hole.

[0013] Preferably, the length of the second connecting portion is less than or equal to the depth of the first connecting groove; and the length of the third connecting portion is less than or equal to the depth of the second connecting groove.

[0014] In the technical solution of the utility model, the two columns are connected to the two ends of the base through the connecting piece, and the two ends of the crossbeam are respectively connected to the tops of the two columns through the connecting piece to form a support frame, the load-bearing beam is erected between the two support frames, and the hand chain hoist is arranged on the load-bearing beam; therefore, the various components of the narrow space object lifting device are all detachably connected, which is convenient for disassembly and assembly, and is conducive to operation in a narrow space, and heavy objects are transferred through a plurality of hand chain hoists to realize the transportation of heavy objects. It is compact and light, safe and reliable, and has high transportation efficiency, and can well adapt to the transportation conditions of narrow spaces; when the first connecting column is inserted into the first connecting hole, the first connecting plate can abut against the crossbeam, and the first fixing plate can abut against the crossbeam. Therefore, when the first connecting column is inserted into the crossbeam, the crossbeam can be stuck between the first connecting plate and the first fixing plate, thereby further fixing the crossbeam and the load-bearing beam, without the need to set additional connecting components, the operation is simple, and the connection is stable and firm. In summary, the narrow space object lifting device can adapt to the handling conditions of narrow spaces, can be disassembled and assembled in narrow spaces, has stable and firm connections, is simple and convenient to operate, has high handling efficiency, and can well lift heavy objects in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a front structural schematic diagram of the narrow space object lifting device of the utility model;

[0017] Figure 2 It is a left-side structural schematic diagram of the narrow space object lifting device of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the narrow space object lifting device of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection of the support frame of the narrow space object lifting device of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the load-bearing beam of the narrow space object lifting device of the utility model;

[0021] Figure 6The utility model is a schematic diagram of the structure of the connecting beam of the narrow space object lifting device.

[0022] Description of Figure Numbers:

[0023] 1-base; 101-second connecting part; 102-second connecting hole; 2-column; 201-third connecting hole; 202-fourth connecting hole; 203-sixth connecting hole; 3-crossbeam; 301-third connecting part; 302-fifth connecting hole; 303-first connecting hole; 4-bearing beam; 401-lifting ear; 402-first connecting plate; 403-first connecting column; 404-first fixed plate; 405-first diagonal brace; 5-hand hoist; 6-connecting beam; 601-second connecting plate; 602-second connecting column; 603-second fixed plate; 604-second diagonal brace; 7-connecting piece.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The utility model provides a device for lifting objects in a narrow space.

[0031] Please refer to Figures 1 to 6 The narrow space object lifting device comprises a support frame, a load-bearing beam 4, a hand chain hoist 5 and a connecting piece 7; the load-bearing beam 4 is erected between two of the support frames, and the load-bearing beam 4 is provided with a plurality of lifting ears 401, and the lifting ears 401 are connected to the hand chain hoist 5; the support frame comprises a base 1, a column 2 and a crossbeam 3; the same support frame comprises two of the columns 2, and the two columns 2 are connected to the two ends of the base 1 through the connecting piece 7, and the two ends of the crossbeam 3 are respectively connected to the tops of the two columns 2 through the connecting piece 7; a first connecting hole 303 is opened through the middle of the crossbeam 3; both ends of the load-bearing beam 4 are provided with a first connecting portion, and the two ends of the load-bearing beam 4 are respectively connected to the crossbeams 3 of the two support frames through the first connecting portion; The first connecting part includes a first connecting plate 402, a first connecting column 403 and a first fixing plate 404; the load-bearing beam 4 and the first connecting column 403 are respectively arranged on both sides of the first connecting plate 402, and the load-bearing beam 4 and the first connecting column 403 are coaxial; the first connecting column 403 is used to insert into the first connecting hole 303; the first fixing plate 404 is L-shaped, and one end of the first fixing plate 404 is connected to the end of the first connecting plate 402 away from the first connecting column 403, when the first connecting column 403 is inserted into the first connecting hole 303, the first connecting plate 402 can abut against the beam 3, and the first fixing plate 404 can abut against the beam 3, so that the load-bearing beam 4 is fixed to the beam 3.

[0032] In the technical solution of the utility model, the two columns 2 are connected to the two ends of the base 1 through the connecting piece 7, the two ends of the crossbeam 3 are respectively connected to the tops of the two columns 2 through the connecting piece 7 to form a support frame, the load-bearing beam 4 is erected between the two support frames, and the hand chain hoist 5 is arranged on the load-bearing beam 4; therefore, the various components of the narrow space object lifting device are detachably connected, and the disassembly and assembly are convenient, which is conducive to operation in a narrow space, and the heavy objects are transferred by a plurality of the hand chain hoists 5 to realize the transportation of heavy objects, which is compact and light. , safe and reliable, high handling efficiency, and can well adapt to the handling conditions in narrow spaces; when the first connecting column 403 is inserted into the first connecting hole 303, the first connecting plate 402 can abut against the beam 3, and the first fixing plate 404 can abut against the beam 3, therefore, when the first connecting column 403 is inserted into the beam 3, the beam 3 can be stuck between the first connecting plate 402 and the first fixing plate 404, thereby further fixing the beam 3 and the load-bearing beam 4, without the need to set additional connecting parts, simple operation, and stable and firm connection. In summary, the narrow space object lifting device can adapt to the handling conditions in narrow spaces, can be disassembled and assembled in narrow spaces, and has a stable and firm connection, simple and convenient operation, high handling efficiency, and can well lift heavy objects in narrow spaces.

[0033] When connecting the load-bearing beam 4 and the support frame, first place the first fixing plate 404 above the crossbeam 3, insert the first connecting column 403 into the first connecting hole 303, and then rotate the load-bearing beam 4 so that the first connecting plate 402 abuts against the crossbeam 3, and the first fixing plate 404 abuts against the crossbeam 3, so that the crossbeam 3 is stuck between the first connecting plate 402 and the first fixing plate 404, thereby limiting the axial movement of the support frame and making the load-bearing beam 4 firmly connected to the support frame.

[0034] Specifically, the support frame is a rectangular frame, and the two ends of the load-bearing beam 4 are respectively connected to the middle of the two support frames; the two ends of the load-bearing beam 4 are provided with the lifting ears 401, and a plurality of the lifting ears 401 are evenly spaced and distributed on one side of the load-bearing beam 4, and the lifting ears 401 correspond to the hand chain hoists 5 one by one, and when the load-bearing beam 4 is connected to the support frame, the lifting ears 401 are located on the lower side of the load-bearing beam 4, and the hand chain hoists 5 are suspended directly below the load-bearing beam 4; the number of the hand chain hoists 5 is at least 2. Furthermore, the bottom of the base 1 is provided with protective patterns to enhance the stability of the base 1.

[0035] In this embodiment, the number of the lifting ears 401 is 3, which are made of steel plates and can withstand a weight of more than 10 tons. They are welded to the middle and both ends of the load-bearing beam 4 respectively and are used to hang the hand hoist 5; the hand hoist 5 is a 10-ton 6-meter hand hoist, and the number is 3; the connecting piece 7 is an M16 connecting bolt.

[0036] Preferably, the first fixing plate 404 includes a first side plate and a second side plate which are connected in sequence and perpendicular to each other; the first side plate is horizontally arranged and connected to the first connecting plate 402; the second side plate is vertically arranged and parallel to the first connecting plate 402; the first side plate can be fitted and abutted against the top wall of the beam 3; the second side plate can be fitted and abutted against the outer wall of the beam 3; the first connecting plate 402 can be fitted and abutted against the inner wall of the beam 3.

[0037] The first fixing plate 404 is located on the upper side of the load-bearing beam 4 , so that the first fixing plate 404 can always be in contact with the cross beam 3 under the action of gravity, thereby ensuring that the load-bearing beam 4 and the cross beam 3 are firmly connected.

[0038] Preferably, the base 1 is provided with a second connecting portion 101 at both ends, and the second connecting portion 101 is horizontally penetrated with a second connecting hole 102; the column 2 is provided with a first connecting groove and a second connecting groove at both ends, and the column 2 is also provided with a third connecting hole 201 penetrating the first connecting groove, and a fourth connecting hole 202 penetrating the second connecting groove; the beam 3 is provided with a third connecting portion 301 at both ends, and the third connecting portion 301 is horizontally penetrated with a fifth connecting hole 302; the second connecting portion 101 is inserted into the first connecting groove, and the connecting member 7 passes through the third connecting hole 201 and the second connecting hole 102 in sequence to fix the column 2 to the base 1; the third connecting portion 301 is inserted into the second connecting groove, and the connecting member 7 passes through the fourth connecting hole 202 and the fifth connecting hole 302 in sequence to fix the beam 3 to the column 2.

[0039] The base 1 and the column 2, as well as the cross beam 3 and the column 2, can be disassembled separately, which can facilitate the carrying and movement of the support frame in a narrow space, as well as the replacement of various components, which is conducive to improving the practicality of the narrow space object lifting device. Specifically, the second connecting parts 101 are symmetrically distributed at both ends of the base 1, and the third connecting parts 301 are symmetrically distributed at both ends of the cross beam 3, and the spacing between the two second connecting parts 101 is consistent with the spacing between the two third connecting parts 301. In this embodiment, the column 2 and the cross beam 3 are both 100 mm square steel.

[0040] Preferably, a connecting beam 6 is provided between the columns 2 of the two supporting frames that are opposite to each other, the connecting beam 6 is perpendicular to the columns 2 , the connecting beam 6 is parallel to the bearing beam 4 , and the connecting beam 6 is lower than the bearing beam 4 .

[0041] The connecting beam 6 is used to improve the integrity of the narrow space object lifting device and ensure the stability of the narrow space object lifting device when in use. Specifically, the connecting beam 6 is connected to the middle of the two columns 2 of the support frame that are opposite to each other, and the heights of the two connecting beams 6 are consistent. In this embodiment, the connecting beam 6 is a 100 mm square steel.

[0042] Preferably, a sixth connecting hole 203 is provided through the middle of the column 2; fourth connecting parts are provided at both ends of the connecting beam 6, and the two ends of the connecting beam 6 are respectively connected to the columns 2 of the two support frames that are opposite to each other through the fourth connecting parts; the fourth connecting part includes a second connecting plate 601, a second connecting column 602 and a second fixing plate 603; the connecting beam 6 and the second connecting column 602 are respectively arranged on both sides of the second connecting plate 601, and the connecting beam 6 and the second connecting column 602 are coaxial; the second connecting column 602 is used to insert into the sixth connecting hole 203; the second fixing plate 603 is L-shaped, and one end of the second fixing plate 603 is connected to the end of the second connecting plate 601 away from the second connecting column 602, when the second connecting column 602 is inserted into the sixth connecting hole 203, the second connecting plate 601 can abut against the column 2, and the second fixing plate 603 can abut against the column 2, so that the connecting beam 6 is fixed to the column 2.

[0043] When connecting the connecting beam 6 and the support frame, first place the second fixing plate 603 on the side of the column 2, insert the second connecting column 602 into the sixth connecting hole 203, and then rotate the connecting beam 6 so that the second connecting plate 601 abuts against the column 2, and the second fixing plate 603 abuts against the column 2, so that the column 2 is stuck between the second connecting plate 601 and the second fixing plate 603, thereby limiting the axial movement of the support frame and making the connecting beam 6 firmly connected to the support frame.

[0044] Preferably, the second fixed plate 603 includes a third side plate and a fourth side plate which are connected in sequence and perpendicular to each other; the third side plate is vertically arranged and connected to the second connecting plate 601; the fourth side plate is vertically arranged and parallel to the second connecting plate 601; the third side plate can be fitted and abutted against one side wall of the column 2; the fourth side plate can be fitted and abutted against the other side wall of the column 2; the second connecting plate can be fitted and abutted against the other side wall of the column 2.

[0045] In this embodiment, after the connecting beam 6 is connected to the support frame, the second fixing plate 603 is located at the lower side of the connecting beam 6, so that the second fixing plate 603 can always fit and abut against the column 2 under the action of gravity, thereby ensuring that the connecting beam 6 and the column 2 are firmly connected.

[0046] Preferably, the first connection part further includes a first diagonal brace 405, the two ends of which respectively connect the first connection plate 402 and the load-bearing beam 4; the fourth connection part further includes a second diagonal brace 604, the two ends of which respectively connect the second connection plate 601 and the connection beam 6. The first diagonal brace 405 and the second diagonal brace 604 are used to enhance the structural stability and load-bearing capacity of the narrow space object lifting device.

[0047] Preferably, the number of the third connection holes 201 and the second connection holes 102 is multiple, and the third connection holes 201 and the second connection holes 102 correspond one to one; the number of the fourth connection holes 202 and the fifth connection holes 302 is multiple, and the fourth connection holes 202 and the fifth connection holes 302 correspond one to one.

[0048] The number of the third connection holes 201 and the second connection holes 102 is multiple, so as to ensure the stability of the connection between the column 2 and the base 1; the number of the fourth connection holes 202 and the fifth connection holes 302 is multiple, so as to ensure the stability of the connection between the crossbeam 3 and the column 2. Specifically, the third connection holes 201 and the fourth connection holes 202 are symmetrically distributed at both ends of the column 2. In this embodiment, the number of the third connection holes 201 and the second connection holes 102 is 2, and the number of the fourth connection holes 202 and the fifth connection holes 302 is 2.

[0049] Preferably, the first connecting column 403 and the second connecting column 602 are both cylinders; the length of the first connecting column 403 is greater than or equal to the depth of the first connecting hole 303; the length of the second connecting column 602 is greater than or equal to the depth of the sixth connecting hole 203.

[0050] The first connecting column 403 and the second connecting column 602 are both cylinders, which facilitates the rotation of the load-bearing beam 4 after the first connecting column 403 is inserted into the first connecting hole 303, so that the crossbeam 3 is stuck between the first connecting plate 402 and the first fixing plate 404; and facilitates the rotation of the connecting beam 6 after the second connecting column 602 is inserted into the sixth connecting hole 203, so that the column 2 is stuck between the second connecting plate 601 and the second fixing plate 603.

[0051] The length of the first connecting column 403 is greater than or equal to the depth of the first connecting hole 303, which is conducive to improving the bearing capacity of the load-bearing beam 4 and improving the connection stability between the load-bearing beam 4 and the support frame; the length of the second connecting column 602 is greater than or equal to the depth of the sixth connecting hole 203, which is conducive to improving the connection stability between the connecting beam 6 and the support frame.

[0052] Preferably, the length of the second connection portion 101 is less than or equal to the depth of the first connection groove; and the length of the third connection portion 301 is less than or equal to the depth of the second connection groove.

[0053] The length of the second connecting portion 101 is less than or equal to the depth of the first connecting groove, so that the base 1 can provide support for the column 2; the length of the third connecting portion 301 is less than or equal to the depth of the second connecting groove, so that the column 2 can provide support for the beam 3, thereby preventing the connecting member 7 from being sheared and damaged due to force, which affects the stability of the narrow space object lifting device.

[0054] The method of using the narrow space object lifting device is as follows:

[0055] Step S10: connecting the base 1, the column 2 and the crossbeam 3 to form the support frame, and then assembling the two support frames and the load-bearing beam 4 to form the narrow space object lifting device, and placing the narrow space object lifting device at a place where heavy objects need to be moved;

[0056] Step S20: Hang the hand chain hoists 5 on the lifting ears 401 respectively;

[0057] Step S30: hoisting the heavy object to a certain height at the entrance of the support frame using the first hand chain hoist 5;

[0058] Step S40: Hanging the hook of the second hand chain hoist 5 on the heavy object;

[0059] Step S50: lower the hook of the first hand hoist 5, and pull up the hook of the second hand hoist 5 at the same time, until the force of the suspended weight is on the hook of the second hand hoist 5. At this time, the weight has been transported from the position of the first hand hoist 5 to the position of the second hand hoist 5, and then remove the hook of the first hand hoist 5.

[0060] Step S60: Hang the hook of the next hand chain hoist 5 on the heavy object, repeat the operation of step S50, and transport the heavy object from the position of the second hand chain hoist 5 to the position of the last hand chain hoist 5.

[0061] Step S70: If the heavy object has not been hoisted to the designated location, put down the heavy object, move the position of the narrow space object hoisting device, and repeat steps S30 to S60 until the heavy object is hoisted to the designated location.

[0062] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for lifting objects in narrow spaces, characterized in that: The invention comprises a support frame, a load-bearing beam (4), a hand chain hoist (5) and a connecting piece (7); the load-bearing beam (4) is erected between two of the support frames, the load-bearing beam (4) is provided with a plurality of lifting ears (401), and the lifting ears (401) are connected to the hand chain hoist (5); the support frame comprises a base (1), a column (2) and a crossbeam (3); the same support frame comprises two columns (2), the two columns (2) are connected to the two ends of the base (1) through the connecting piece (7), and the two ends of the crossbeam (3) are respectively connected to the tops of the two columns (2) through the connecting piece (7); a first connecting hole (303) is provided through the middle of the crossbeam (3); both ends of the load-bearing beam (4) are provided with a first connecting portion, and the two ends of the load-bearing beam (4) are respectively connected to the crossbeams (3) of the two support frames through the first connecting portion; the first connecting portion The connecting portion comprises a first connecting plate (402), a first connecting column (403) and a first fixing plate (404); the load-bearing beam (4) and the first connecting column (403) are respectively arranged on both sides of the first connecting plate (402), and the load-bearing beam (4) and the first connecting column (403) are coaxial; the first connecting column (403) is used to be inserted into the first connecting hole (303); the first fixing plate (404) is L-shaped, and one end of the first fixing plate (404) is connected to an end of the first connecting plate (402) away from the first connecting column (403); when the first connecting column (403) is inserted into the first connecting hole (303), the first connecting plate (402) can abut against the crossbeam (3), and the first fixing plate (404) can abut against the crossbeam (3), so that the load-bearing beam (4) is fixed to the crossbeam (3).

2. The narrow space object lifting device according to claim 1, characterized in that: The first fixing plate (404) comprises a first side plate and a second side plate which are connected in sequence and perpendicular to each other; the first side plate is arranged horizontally and connected to the first connecting plate (402); the second side plate is arranged vertically and parallel to the first connecting plate (402); the first side plate can be fitted and abutted against the top wall of the beam (3); the second side plate can be fitted and abutted against the outer side wall of the beam (3); the first connecting plate (402) can be fitted and abutted against the inner side wall of the beam (3).

3. The narrow space object lifting device according to claim 1, characterized in that: The base (1) is provided with a second connecting portion (101) at both ends, and the second connecting portion (101) is provided with a second connecting hole (102) extending horizontally therethrough; the column (2) is provided with a first connecting groove and a second connecting groove at both ends, and the column (2) is further provided with a third connecting hole (201) extending through the first connecting groove, and a fourth connecting hole (202) extending through the second connecting groove; the crossbeam (3) is provided with a third connecting portion (301) at both ends, and the third connecting portion (301) is provided with a second connecting hole (102) extending horizontally therethrough; A fifth connecting hole (302) is provided through the support; the second connecting portion (101) is inserted into the first connecting groove, and the connecting member (7) passes through the third connecting hole (201) and the second connecting hole (102) in sequence to fix the column (2) to the base (1); the third connecting portion (301) is inserted into the second connecting groove, and the connecting member (7) passes through the fourth connecting hole (202) and the fifth connecting hole (302) in sequence to fix the crossbeam (3) to the column (2).

4. The narrow space object lifting device according to claim 3, characterized in that: A connecting beam (6) is provided between the two supporting frames' columns (2) that are opposite to each other, the connecting beam (6) is perpendicular to the columns (2), the connecting beam (6) is parallel to the bearing beam (4), and the connecting beam (6) is lower than the bearing beam (4).

5. The narrow space object lifting device according to claim 4, characterized in that: A sixth connecting hole (203) is provided through the middle of the column (2); fourth connecting parts are provided at both ends of the connecting beam (6), and the two ends of the connecting beam (6) are respectively connected to the two columns (2) of the supporting frame that are opposite to each other through the fourth connecting parts; the fourth connecting part comprises a second connecting plate (601), a second connecting column (602) and a second fixing plate (603); the connecting beam (6) and the second connecting column (602) are respectively provided on both sides of the second connecting plate (601), and the connecting beam (6) and the second connecting column (602) are respectively provided ) coaxially; the second connecting column (602) is used to be inserted into the sixth connecting hole (203); the second fixing plate (603) is L-shaped, and one end of the second fixing plate (603) is connected to the end of the second connecting plate (601) away from the second connecting column (602), when the second connecting column (602) is inserted into the sixth connecting hole (203), the second connecting plate (601) can abut against the column (2), and the second fixing plate (603) can abut against the column (2), so that the connecting beam (6) is fixed to the column (2).

6. The narrow space object lifting device according to claim 5, characterized in that: The second fixing plate (603) comprises a third side plate and a fourth side plate which are connected in sequence and are perpendicular to each other; the third side plate is vertically arranged and connected to the second connecting plate (601); the fourth side plate is vertically arranged and parallel to the second connecting plate (601); the third side plate can be fitted and abutted against one side wall of the column (2); the fourth side plate can be fitted and abutted against the other side wall of the column (2); the second connecting plate can be fitted and abutted against the other side wall of the column (2).

7. The narrow space object lifting device according to claim 5, characterized in that: The first connecting portion further comprises a first diagonal brace (405), the two ends of which respectively connect the first connecting plate (402) and the load-bearing beam (4); the fourth connecting portion further comprises a second diagonal brace (604), the two ends of which respectively connect the second connecting plate (601) and the connecting beam (6).

8. The narrow space object lifting device according to claim 3, characterized in that: The number of the third connection holes (201) and the second connection holes (102) is multiple, and the third connection holes (201) and the second connection holes (102) correspond one to one; the number of the fourth connection holes (202) and the fifth connection holes (302) is multiple, and the fourth connection holes (202) and the fifth connection holes (302) correspond one to one.

9. The narrow space object lifting device according to claim 5, characterized in that: The first connecting column (403) and the second connecting column (602) are both cylinders; the length of the first connecting column (403) is greater than or equal to the depth of the first connecting hole (303); the length of the second connecting column (602) is greater than or equal to the depth of the sixth connecting hole (203).

10. The narrow space object lifting device according to claim 3, characterized in that: The length of the second connection portion (101) is less than or equal to the depth of the first connection groove; and the length of the third connection portion (301) is less than or equal to the depth of the second connection groove.

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