CN218345041U - Rescue lifting device - Google Patents

Abstract

The utility model relates to a lifting means technical field especially relates to a rescue hoisting device. Rescue hoisting device includes unable adjustment base, and the last promotion structure of installing of unable adjustment base, promotion structure include lifting arm and hoist, and promotion structure still includes rotatory pillar, and rotatory pillar rotates around self axis and installs on unable adjustment base, and lifting arm and hoist are all installed on rotatory pillar, promote structural being provided with rotation operation structure, rotate operation structure through the operation and can drive the personnel relative fixed base rotation in the horizontal plane that lifts by crane. When the rescue device is used, trapped people are lifted out of the square well pool and then the rotating operation structure is operated, so that the rotating support column drives the lifting arm, the winch and the personnel lifted by the lower end of the lifting rope to rotate in the horizontal plane to transfer the personnel to a place beside the square well pool from the upper side of the square well pool, rescue is implemented, the rescue process does not need other equipment, time and labor are saved, and the rescue time is shortened to a great extent.

Description

Rescue lifting device

Technical Field

The utility model relates to a lifting means technical field especially relates to a rescue hoisting device.

Background

At present, field workers in a high-sulfur-content gas field enter a wellhead square well pool for operation, a positive pressure type air respirator is used, certain potential safety hazards exist, and particularly in high-temperature and humid weather in summer, the square well pool is not ventilated, and people are prone to suffering from sunstroke. Under normal conditions, one person enters the square well pool, one person monitors outside, if the person entering the square well pool is in an emergency situation of loss of mobility such as syncope, emergency rescue needs to be implemented by the person monitoring outside, and the person trapped in the square well pool is pulled out of the square well pool through the lifting device.

The utility model discloses a chinese utility model patent that the grant bulletin number is CN215402707U discloses an auxiliary device for hoist, this auxiliary device for hoist includes the support column, the bottom of support column is equipped with supporting baseplate, it has the lifting arm to articulate on the support column, the fixed pulley is installed to the front end of lifting arm, the last backup pad that is equipped with of supporting baseplate, it is equipped with the kinking wheel to rotate in the backup pad, fixed mounting has the lifting motor on the supporting baseplate, the output shaft and the kinking wheel fixed connection of lifting motor, the winding has the lifting rope on the kinking wheel, the fixed pulley of process lifting arm front end is encircleed to the one end of lifting rope and is equipped with the lifting hook. During the use with the device fixed subaerial, adjust according to the hoist and mount distance behind the contained angle between good lifing arm and the support column fixed lifing arm and support column, control lifting rope's lift and transfer through the positive and negative action of controlling the hoisting motor.

When the device is applied to square well pool lifesaving, the following problems exist: the lifting arm can not rotate on the horizontal plane, so the trapped person is still right above the square well pool after being lifted out of the square well pool, the trapped person can not be transferred to a place beside the square well pool, and the trapped person needs to be transferred away by other equipment, so that the rescue process is time-consuming and labor-consuming, and the best rescue time is very easily missed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rescue hoisting device to solve current hoisting device and can not shift stranded personnel to the other place in side well pond when being used for side well pond lifesaving, need carry out personnel with the help of other equipment and shift, lead to the problem that the process of suing and labouring wastes time and energy.

In order to achieve the above object, the utility model discloses rescue hoisting device adopts following technical scheme:

the utility model provides a rescue hoisting device, includes unable adjustment base, and unable adjustment base is last to install and to promote the structure, promotes the structure and includes lifting arm and hoist, promotes the structure and still includes the rotation pillar, and the rotation pillar rotates around self axis and installs on unable adjustment base, and lifting arm and hoist are all installed on the rotation pillar, promote structural being provided with rotation operation structure, rotate operation structure through the operation and can drive the personnel relative fixed base rotation in the horizontal plane that lifts by crane.

Has the advantages that: the utility model discloses carry out institutional advancement to current hoisting device, make the lifting arm and the whole rotation of hoist install on unable adjustment base, during the use, earlier will be stranded personnel lift out of square well pond through the hoist, then the operation rotates operation structure, make the rotating support post drive the lifting arm, thereby personnel that hoist and lifting rope lower extreme were hoisted shift personnel from square well pond top in horizontal rotation, put stranded personnel to the side place in square well pond through the hoist at last again, implement the rescue, whole process is orderly operated, need not be with the help of other equipment, time saving and labor saving, can guarantee that stranded personnel obtain the rescue in best rescue time.

Furthermore, unable adjustment base includes the pedestal and fixes the installation pipe of the vertical extension on the pedestal, and rotatory pillar rotates the cartridge and exposes the installation pipe in the installation pipe and upper end, and the upper end at rotatory pillar is installed to lifting arm and hoist, rotate the position that the operation structure is located the exposure installation pipe of rotatory pillar.

Has the beneficial effects that: rotate the installation rotating prop through the installation pipe, can increase the cooperation length of rotating prop and installation pipe, make rotating prop have higher intensity, bearing capacity is stronger.

Furtherly, rotatory pillar passes through the bearing rotation and installs in the installation pipe, the bearing is equipped with two, and the both ends of installation pipe have upper portion major diameter section and lower part major diameter section, and two bearings are installed respectively in upper portion major diameter section and lower part major diameter section.

Has the beneficial effects that: make full use of installation pipe's length improves rotation support's structural strength and bearing capacity, sets up the big footpath section in upper portion and the big footpath section in lower part in the both ends of installation pipe moreover and is used for installing the bearing, makes the installation of bearing comparatively convenient.

Furtherly is equipped with the annular apron on the rotation support, and the annular apron lid shelters from the big footpath section in upper portion from the upside on the up end of the big footpath section in upper portion, is equipped with on the annular apron to annotate the fat hole, annotates removable the installing of fat hole department and is used for sealing the enclosed construction who annotates the fat hole.

Has the advantages that: the upper large-diameter section of the installation pipe is shielded through the annular cover plate, rainwater, sand, dust and the like can be prevented from entering the installation pipe and damaging the performance of the bearing, the annular cover plate is provided with the grease injection hole and the detachable installation sealing structure, and the bearing is convenient to lubricate and maintain.

Furthermore, a nut is welded on the annular cover plate, the grease injection hole is enclosed by the nut, the closed structure is a bolt, and the lower end of the bolt extends into the grease injection hole to close the grease injection hole.

Has the advantages that: on the premise of ensuring reliable sealing, the opening and closing operations of the grease injection hole are very convenient, and the product manufacturing is simpler.

Furthermore, one of the annular cover plate and the large-diameter section on the upper part of the installation pipe is provided with a positioning pin, the other one of the annular cover plate and the large-diameter section on the upper part of the installation pipe is provided with a positioning hole or a positioning groove, and the positioning pin extends into the positioning hole or the positioning groove to circumferentially position the rotating support column when the rotating support column rotates to a lifting position and a lowering position.

Has the advantages that: promote the position and transfer the position and fix a position the rotation pillar, can avoid the rotation pillar to rotate at will, be convenient for promote and transfer going on of process, this kind of location simple structure moreover makes the locking of rotation pillar and removes the locking operation all very convenient.

Furthermore, the rotation operation structure is a torque arm, a torque arm suspension plate is fixedly mounted on the rotation support column or the annular cover plate, and the torque arm is hinged to the torque arm suspension plate around a horizontal axis so as to apply a rotation moment to the rotation support column when the rotation support column is turned to a horizontal state.

Has the advantages that: the torsion arm can be put down in a standby state, so that the extension directions of the torsion arm and the rotary support are kept consistent, the overall transverse size of the device is reduced, and the device is convenient to transport.

Furthermore, limiting pin holes are correspondingly formed in the torque arm and the torque arm suspension plate, and when the torque arm rotates to a horizontal extension state, a limiting pin is inserted into the limiting pin hole to keep the torque arm in the current state.

Has the beneficial effects that: in the rescue process, the torque arm is kept in a horizontally extending state through the fastener, so that the torque is applied to the torque arm by an operator more conveniently and more labor-saving.

Furthermore, the two torsion arm suspension plates are arranged in parallel at intervals, and the torsion arms are hinged between the two torsion arm suspension plates.

Has the advantages that: two torque arm hang the board and can provide better support for the torque arm, make the torque arm assembly more stable firm.

Furthermore, a lifting arm connecting plate is fixed at the upper end of the rotating support column, the lifting arm is rotatably installed on the lifting arm connecting plate around a horizontal axis, and a locking structure for locking the lifting arm at a lifting position which is overhung in an inclined direction and a folding position which is combined with the rotating support column in a hanging mode is arranged on the lifting arm connecting plate.

Has the advantages that: install the lifting arm on the lifting arm connecting plate around horizontal axis rotation, can lift the lifting arm and the locking is in the lifting position of ascending overhang in the slant when user state, put down the lifting arm and the locking is in the folding position that hangs down and rotatory pillar and be in the same place, convenient storage and transportation when standby.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of the rescue lifting device of the present invention;

fig. 2 is a schematic structural view of the rescue lifting device of the present invention, in which the lifting arm and the winch are not shown in embodiment 1;

FIG. 3 is a top view of the annular cover plate of FIG. 2;

FIG. 4 is a front view of the lift arm;

FIG. 5 is a left side view of the lift arm;

fig. 6 is a schematic view of the rescue lifting device of embodiment 1 of the present invention in a standby state;

in the figure: 1. a fixed base; 11. a base body; 111. a fixing hole; 112. anchor bolts; 12. installing a pipe; 121. a bearing; 123. a second positioning plate; 13. rotating the support; 131. an annular cover plate; 1311. a first positioning plate; 1312. a first spring telescopic positioning pin; 1313. a grease injection hole; 132. a torque arm suspension plate; 1321. hanging a pin; 1322. a second spring telescopic positioning pin; 133. a torque arm; 134. a hoisting fixing plate; 135. a lift arm attachment plate; 1351. a first hanging rotation hole; 1352. a first supporting positioning hole; 1353. a hoist rope locator; 2. a lift arm; 21. an arm lever; 22. a slot; 23. a second hanging rotation hole; 24. a second support positioning hole; 25. supporting the positioning pin; 26. hanging a rotating pin; 27. a hook hanger; 28. a hook and hoist rope locator assembly; 3. hoisting; 311. a housing; 312. a rocker arm; 314. a reel; 32. a hoisting rope; 33. and (4) a lifting hook.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses rescue hoisting device's embodiment 1:

as shown in fig. 1, the rescue lifting device comprises a fixed base 1, a lifting structure is installed on the fixed base 1, a rotating support column 13 of the lifting structure, a lifting arm 2 and a winch 3 are installed on the fixed base 1, the rotating support column 13 rotates around the axis of the rotating support column 13, the lifting arm 2 and the winch 3 are installed at the upper end of the rotating support column 13, and a lifting rope 32 of the winch 3 bypasses the overhanging end of the lifting arm 2 and hangs down. The fixing base 1 comprises a base body 11 and a vertically extending mounting pipe 12 welded on the base body 11, wherein fixing holes 111 are formed at four corners of the base body 11 and are fixed on the ground through foundation bolts 112 when in use. The rotation support 13 is rotatably mounted in the mounting pipe 12 by a bearing 121 with the upper end exposed out of the mounting pipe 12. The both ends of installation pipe 12 have upper portion major diameter section and lower part major diameter section, and bearing 121 is equipped with two, installs respectively in upper portion major diameter section and lower part major diameter section.

As shown in fig. 2, an annular cover plate 131 is welded to the outer side of the rotary support column 13, and the annular cover plate 131 covers the upper end surface of the installation pipe 12 to shield the upper large-diameter section of the installation pipe 12 from the upper side, so as to prevent rainwater or sand from entering the installation pipe 12 and damaging the performance of the bearing 121. Seted up on the annular cover plate 131 and annotated fat hole 1313, the last skin weld of annular cover plate 131 has the nut, and the nut will be annotated fat hole 1313 and enclose, and through bolt and nut cooperation, the bolt lower extreme stretches into in annotating fat hole 1313 and will annotate fat hole 1313 and seal, dismantles the bolt during annotating the fat, pours into lubricating oil in order to lubricate the maintenance to bearing 121. As shown in fig. 3, a first positioning plate 1311 extending horizontally is welded on the annular cover plate 131, a first spring telescopic positioning pin 1312 is installed on the first positioning plate 1311, two second positioning plates 123 extending horizontally are welded on the outer side of the upper large-diameter section of the installation pipe 12, the two second positioning plates 123 are spaced by 180 ° in the circumferential direction, a positioning hole is formed in the second positioning plate 123, and when the rotary support column 13 rotates to the lifting position and the lowering position, the first spring telescopic positioning pin 1312 extends into the positioning hole in the second positioning plate 123, so as to circumferentially position the rotary support column 13.

Two torsion arm suspension plates 132 are arranged on the annular cover plate 131 at intervals in parallel, the torsion arm suspension plates 132 are vertically welded on the annular cover plate 131, one side, extending out of the annular cover plate 131, of each torsion arm suspension plate 132 is a suspension side, a torsion arm 133 is suspended on the suspension side through a suspension pin 1321, the suspension pin 1321 penetrates through a suspension hole in the torsion arm 133, and the suspension pin 1321 extends in the horizontal direction, so that the torsion arm 133 can rotate around the suspension pin 1321 in a vertical plane. One of the torque arm suspension plates 132 is provided with a limit pin hole, a second spring telescopic positioning pin 1322 is installed in the limit pin hole, the second spring telescopic positioning pin 1322 is located on the inner side of the suspension pin 1321, the torque arm 133 is correspondingly provided with a limit pin hole, when the torque arm 133 is turned to a horizontal state, the second spring telescopic positioning pin 1322 extends into the limit pin hole on the torque arm 133 to keep the torque arm 133 in a horizontal state, namely a use state, in which a moment is applied to the torque arm 133, and the rotating support column 13 can drive the lifting arm 2 and the winch 3 to rotate together in a horizontal plane. When not in use, the torque arm 133 can be set to a standby state, and the second spring telescopic positioning pin 1322 is specifically operated to be pulled out of the limit pin hole on the torque arm 133, so that the torque arm 133 is rotated to a vertical state, namely, the standby state. The torque arm 133 is square steel pipe, guarantees on the one hand that the torque arm 133 has higher structural strength, can satisfy the user demand, and on the other hand alleviates torque arm 133's weight, makes the operation more laborsaving.

The hoist 3 is fixedly installed at the upper end of the rotary support 13, the hoist 3 includes a housing 311, a winding drum 314 is rotatably assembled in the housing 311, a hoisting rope 32 is wound on the winding drum 314, and a hook 33 is arranged at one end of the hoisting rope 32. A reduction gear set is arranged in the housing 311, the reduction gear set is in meshing transmission with the winding drum 314, the rocker arm 312 is arranged on the outer side of the housing 311, the rocker arm 312 is fixedly connected with a gear shaft of a pinion of the reduction gear set, and the winding drum 314 rotates when the rocker arm 312 is rotated, so that the lifting operation of the lifting rope 32 is realized. The winding fixing plate 134 is welded to the upper portion of the outer side surface of the rotary column 13, four bolt through holes are formed in the winding fixing plate 134 corresponding to the four bolt mounting holes in the housing 311, and the housing 311 is fixedly mounted on the winding fixing plate 134 through bolts.

The lift arm 2 is mounted to the rotation column 13 through a lift arm coupling plate 135, an upper portion of the rotation column 13 is cut along an angle perpendicular to the winding fixing plate 134 to form a mounting groove in the upper portion of the rotation column 13, and the lift arm coupling plate 135 is welded in the mounting groove. Two lifting rope locators 1353 are welded to the left and right of the upper portion of the lifting arm connecting plate 135 at intervals, each lifting rope locator 1353 comprises a fixing piece, a fixing shaft and a fixing rotating sleeve, each fixing piece is formed by cutting a steel plate, the upper portion of each fixing piece is in an arc shape, the lower portion of each fixing piece is in a straight shape, and the two fixing pieces are symmetrically welded to the two sides of the lifting arm connecting plate 135; the fixed shaft is formed by cutting steel bars and is welded between the two fixed plates; the fixed rotating sleeve is formed by cutting a steel pipe and is sleeved outside the fixed shaft. The lift arm attachment plate 135 is provided with a first hanging rotation hole 1351 and a first supporting positioning hole 1352, and the first supporting positioning hole 1352 is located outside the first hanging rotation hole 1351 and higher than the first hanging positioning hole.

As shown in fig. 4 and 5, the lifting arm 2 includes an arm rod 21, and the arm rod 21 is formed by cutting and welding a finished steel pipe, and has a total length less than that of the fixing base 1. One end of the arm bar 21 is provided with a slot 22 for the insertion of the lifting arm connecting plate 135, the width of the slot 22 is larger than the thickness of the lifting arm connecting plate 135, and the lifting arm connecting plate 135 is inserted into the slot 22 and is welded with the lifting arm 2. The length of the insertion slot 22 is greater than the length from the first hanging rotation hole 1351 of the lift arm attachment plate 135 to the lower outside bottom corner of the lift arm attachment plate 135, so that the lift arm 2 can perform a circular motion centering on the first hanging rotation hole 1351. The arm lever 21 is provided with a second hanging rotation hole 23 and a second support positioning hole 24 at an end having the insertion groove 22, and a distance between the second hanging rotation hole 23 and the second support positioning hole 24 is equal to a distance between the first hanging rotation hole 1351 and the first support positioning hole 1352. The suspension turning pin 26 is simultaneously passed through the first and second suspension turning holes to achieve turning fitting of the lift arm 2 to the rotation column 13, and the axis of the suspension turning pin 26 extends horizontally. When the lifting arm 2 is rotated to the lifting position suspended obliquely upward, the support positioning pin 25 is simultaneously passed through the first and second support positioning holes to hold the lifting arm 2 at the lifting position.

Be close to the middle part position on the armed lever 21 and be equipped with the lifting hook hanger 27 that is used for hanging lifting hook 33, lifting hook hanger 27 includes stationary blade and fixed axle, and the stationary blade is formed by the steel sheet cutting, and two stationary blade symmetry welds on the armed lever 21, and the fixed axle is formed by the reinforcing bar cutting, welds between two stationary blades. The hook 33 can be hung on the hook hanger 27 in the standby state.

The other end of the arm rod 21 is provided with a lifting hook and lifting rope locator assembly 28, and the lifting hook and lifting rope locator assembly 28 consists of a fixing plate, a fixing shaft, a fixing rotating sleeve and a groove jump prevention blocking plate. The fixing pieces are formed by cutting a steel plate, the upper part of each fixing piece is in an arc shape, the lower part of each fixing piece is in a straight shape, and the two fixing pieces are symmetrically welded at the top end of the arm rod 21; the fixed shaft is formed by cutting a steel bar and is welded between the two fixed plates; the fixed rotating sleeve is formed by cutting a steel pipe and is sleeved outside the fixed shaft; the anti-jumping-groove blocking piece is formed by cutting a thin steel plate, fixing bolt holes are formed in two ends of the anti-jumping-groove blocking piece, and the anti-jumping-groove blocking piece is fastened at the top end of a fixing piece through bolts to play a role in blocking the jumping of the lifting rope 32.

The specific use method of the rescue lifting device is as follows:

and drilling a mounting hole at the ground plane beside the square well pool of the wellhead, embedding the foundation bolt 112, mounting the base body 11 of the fixed base 1 on the foundation bolt 112, and fastening through a nut to complete the field mounting work of the rescue lifting device.

And (3) pulling the steel grating of the square well pool of the high-sulfur-content gas well completely, so that the upper part of the square well pool is not shielded, the limited space is changed into a semi-limited space, and the working face for normal construction and inspection is completely opened.

Pulling up the second spring-telescoping positioning pin 1322 on the torque arm suspension plate 132, and lifting up the torque arm 133 to the horizontal position; then, the second spring retractable positioning pin 1322 is released, and the second spring retractable positioning pin 1322 automatically springs into the limiting pin hole of the torque arm 133 to fix the torque arm 133, so that the torque arm 133 reaches the use state.

Pulling the supporting and positioning pin 25 on the lifting arm 2; the ratchet wheel pawl check positioning mechanism of the winch 3 is twisted to a clockwise gear, and the rocker arm 312 is rotated clockwise; after the hook 33 is raised to the position of the hook and hoisting rope retainer assembly 28, the swing arm 312 is rotated continuously, the arm lever 21 is raised to the top dead center, the supporting and positioning pin 25 is inserted into the second supporting and positioning hole 24 of the hoisting arm 2, the supporting and positioning pin 25 simultaneously passes through the first supporting and positioning hole 1352 of the hoisting arm connecting plate 135, and the hoisting arm 2 is put into use.

Pulling up a first spring telescopic positioning pin 1312 mounted on the annular cover plate 131 of the rotation column 13; turning the torque arm 133 to rotate the lifting arm 2 above the square well; the first spring retractable positioning pin 1312 automatically springs into the positioning hole of the positioning plate after reaching the other positioning plate position at the top end of the mounting pipe 12, thereby completing the fixed locking of the lifting arm 2 at the use position.

Twisting the ratchet and pawl non-return positioning mechanism of the winch 3 to an anticlockwise gear, and rotating the rocker arm 312 anticlockwise; the hook 33 is lowered to the appropriate position for connection by the personnel entering the square pit to a "five-point" harness worn by the personnel.

Well mouth operators and workers entering the square well pool are closely matched, and the lifting ropes 32 are retracted according to actual conditions; when emergency situations such as syncope of people in the square well pool occur, the operating personnel quickly rotate the rocker arm 312 to lift the people in the well out of the square well pool, rotate the torsion arm 133 to move the people away from the upper side of the square well pool and lift the people to a place beside the square well pool, and the rocker arm 312 is rotated reversely to slowly place the people on the ground for transferring and rescuing.

When the rescue lifting device is in the standby state, the swing arm 133 and the lifting arm 2 are all put into the storage state, the hook 33 is hung on the hook hanger 27 of the lifting arm 2, and the swing arm 312 is slightly rotated, so that the hook 33 and the lifting rope 32 are in a slightly straightened state, as shown in fig. 6.

Example 2: the difference from the embodiment 1 is that in the embodiment 1, the fixed base comprises a base body and a vertically extending installation pipe fixed on the base body, the rotary support column is rotatably inserted into the installation pipe, and the upper end of the rotary support column is exposed out of the installation pipe; whereas in embodiment 2 the swivel post is pivotally mounted on top of the mounting tube. In other embodiments, the installation pipe is not arranged, and the rotating support column can be directly and rotatably assembled on the seat body.

Example 3: the difference from the embodiment 1 is that in the embodiment 1, a nut is welded on the annular cover plate, the nut encloses the grease injection hole, and the grease injection hole is closed through a bolt; in embodiment 3, the grease injection hole is sealed by a sealing cover, and the sealing cover is fixedly connected with the annular cover plate through a screw. In other embodiments, the grease hole may be sealed by inserting a sealing plug into the grease hole.

Example 4: the difference from the embodiment 1 is that in the embodiment 1, a torsion arm suspension plate is fixedly installed on the annular cover plate, a torsion arm is hinged to the torsion arm suspension plate around a horizontal axis, and the rotation support column drives the lifting arm to rotate in a horizontal plane by operating the torsion arm; in embodiment 4, however, a horizontally extending cylindrical rod is welded directly to the annular cover plate as a rotary operating structure. In other embodiments, a torque arm may also be mounted to the rotation post.

Example 5: the difference from the embodiment 1 is that in the embodiment 1, two torsion arm suspension plates are arranged in parallel at intervals, and the torsion arm is hinged between the two torsion arm suspension plates; in embodiment 5, however, one of the torsion arm hanging plates is provided, and the torsion arm is hinged to the torsion arm hanging plate.

Example 6: the difference from the embodiment 1 is that in the embodiment 1, a first positioning plate extending horizontally is welded on the annular cover plate, a positioning pin is installed on the first positioning plate, two second positioning plates extending horizontally are welded on the outer wall surface of the large-diameter section at the upper part of the installation pipe at intervals of 180 degrees in the circumferential direction, a positioning hole is formed in each second positioning plate, and the positioning pin extends into the positioning hole to circumferentially position the rotating support column when the rotating support column rotates to the lifting position and the lowering position; in embodiment 6, two first positioning plates extending horizontally are welded to the annular cover plate at an interval of 180 ° in the circumferential direction, the first positioning plates are provided with positioning holes, a second positioning plate extending horizontally is welded to the outer wall surface of the large-diameter section at the upper portion of the installation pipe, and the second positioning plate is provided with positioning pins which extend into the positioning holes to circumferentially position the rotary support when the rotary support rotates to the lifting position and the lowering position.

Example 7: the difference from the embodiment 1 is that in the embodiment 1, both ends of the installation pipe are provided with an upper large-diameter section and a lower large-diameter section, and two bearings are respectively installed in the upper large-diameter section and the lower large-diameter section; in example 7, the diameters of the respective portions of the mounting pipe are the same, and the two bearings are mounted at the upper and middle positions in the mounting pipe, respectively.

Example 8: the difference from embodiment 1 is that in embodiment 1, a lift arm attachment plate is fixed to the upper end of the rotation column, and the lift arm is rotatably mounted on the lift arm attachment plate about a horizontal axis, while in embodiment 8, the lift arm is welded to the lift arm attachment plate.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a rescue hoisting device, includes unable adjustment base (1), installs on unable adjustment base (1) and promotes the structure, promotes the structure and includes lifting arm (2) and hoist (3), its characterized in that: the lifting structure further comprises a rotating support column (13), the rotating support column (13) is rotatably installed on the fixed base (1) around the axis of the rotating support column (13), the lifting arm (2) and the winch (3) are both installed on the rotating support column (13), a rotating operation structure is arranged on the lifting structure, and the rotating operation structure can drive a lifted person to rotate in the horizontal plane relative to the fixed base (1).

2. Rescue lifting device according to claim 1, characterized in that: the fixed base (1) comprises a base body (11) and a vertically extending installation pipe (12) fixed on the base body (11), a rotary strut (13) is rotatably inserted into the installation pipe (12) and the upper end of the rotary strut is exposed out of the installation pipe (12), a lifting arm (2) and a winch (3) are installed at the upper end of the rotary strut, and the rotary operation structure is located at the part, exposed out of the installation pipe (12), of the rotary strut (13).

3. The rescue lifting device of claim 2, wherein: the rotary supporting column is rotatably installed in the installation pipe through bearings, the bearings (121) are arranged in two numbers, the two ends of the installation pipe (12) are provided with an upper large-diameter section and a lower large-diameter section, and the two bearings (121) are installed in the upper large-diameter section and the lower large-diameter section respectively.

4. The rescue lifting device of claim 3, wherein: be equipped with annular cover plate (131) on rotatory pillar (13), annular cover plate (131) cover on the up end of upper portion major diameter section and shelter from the upside upper portion major diameter section, be equipped with on annular cover plate (131) and annotate fat hole (1313), annotate fat hole (1313) department demountable installation have be used for sealing the enclosed construction who annotates fat hole (1313).

5. The rescue lifting device of claim 4, wherein: the annular cover plate (131) is welded with nuts which enclose the grease injection holes (1313), the closed structure is bolts, and the lower ends of the bolts extend into the grease injection holes (1313) to close the grease injection holes (1313).

6. Rescue lifting device according to claim 4, characterized in that: install the locating pin on one of annular apron (131) and the upper portion major diameter section of installation pipe (12), be equipped with locating hole or constant head tank on the other, locating pin stretches into in locating hole or the constant head tank and carries out circumference location to rotation pillar (13) when rotation pillar (13) rotate to lifting position and transfer position.

7. The rescue lifting device of any one of claims 1-6, wherein: the rotating operation structure is a torque arm (133), a torque arm suspension plate (132) is fixedly mounted on the rotating support column (13) or the annular cover plate (131), and the torque arm (133) is hinged to the torque arm suspension plate (132) around a horizontal axis so as to apply rotating torque to the rotating support column (13) when the rotating support column is turned to a horizontal state.

8. The rescue lifting device of claim 7, wherein: the torque arm (133) and the torque arm suspension plate (132) are correspondingly provided with limit pin holes, and when the torque arm (133) rotates to a horizontal extension state, the torque arm (133) is kept in a current state by inserting limit pins into the limit pin holes.

9. The rescue lifting device of claim 7, wherein: the two torsion arm suspension plates (132) are arranged in parallel at intervals, and the torsion arm (133) is hinged between the two torsion arm suspension plates.

10. The rescue lifting device of any one of claims 1-6, wherein: a lifting arm connecting plate (135) is fixed at the upper end of the rotating support column (13), the lifting arm (2) is rotatably installed on the lifting arm connecting plate (135) around a horizontal axis, and a locking structure which locks the lifting arm (2) at a lifting position which is overhung in the inclined direction and a folding position which is overhung and is combined with the rotating support column (13) is arranged on the lifting arm connecting plate (135).

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