A hydraulic lifting column

Abstract

The present invention discloses a hydraulic jacking column, comprising a load-bearing base, a base sleeve, a telescopic column, a telescopic power-assisting mechanism and a hydraulic mechanism. The base sleeve is vertically installed at the axial position of the top of the load-bearing base, a pushing rod is installed at one side of the load-bearing base, a hydraulic mechanism is installed at the bottom of the inner cavity of the base sleeve, a supporting plate is installed on the top of the hydraulic mechanism, a telescopic column is installed on the top of the supporting plate, and a telescopic power-assisting mechanism is rotatably installed on one side of the bottom of the telescopic column. The hydraulic jacking column only needs to extend an operating rod into a connecting sleeve, and cyclically push the operating rod up and down to realize lifting and lowering of objects, which is simple to operate, saves time and labor, and the hydraulic jacking column has a simple structure and is easy to produce. The hydraulic jacking column can transport objects upward by installing the telescopic column. The hydraulic jacking column is small in size and easy to carry, which solves the difficulty of using large-scale lifting machinery in narrow areas and low-rise buildings, and avoids the problems of low efficiency and high fatigue of manual handling.

Description

Technical Field

[0001] The invention relates to the field of hydraulic equipment, and in particular to a hydraulic jacking column. Background Art

[0002] The jacking mechanism is a large-scale equipment for vertical transportation of goods. It is suitable for jacking up the original components of buildings, bridges, factories, etc., increasing the height of use or increasing the number of floors.

[0003] The patent application number CN201610707548.9 discloses a lifting frame, which includes a first lifting frame main chord, a second lifting frame main chord, a lifting work platform, a lifting cylinder, a cylinder bracket, a hydraulic pump, and a shoulder beam. The lifting frame adopts a lifting frame with a reasonable structural design, which can effectively solve the problems of complex structure, low efficiency, difficult use and maintenance, and inability to adapt to high-beat production of industrial automation. However, there are still the following shortcomings: (1) The lifting frame is complicated to lift and lower objects, and the operation is difficult; (2) The lifting distance of the lifting frame is limited, and the objects cannot be transported upward for a distance, and the lifting frame is large in size and inconvenient to carry. Summary of the invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide: (1) by extending the operating rod into the connecting sleeve, by lifting the operating rod upward, the power plunger is driven to slide upward in the plunger sleeve, thereby generating suction, and the first ball valve in the pipette and the infusion pipe is attracted upward, wherein the first ball valve in the pipette is in contact with the stopper, with a gap therebetween, and the first ball valve in the infusion pipe is in contact with the limit sleeve, with no gap therebetween, and the hydraulic oil between the outer sleeve and the inner sleeve is sucked into the inner cavity of the plunger sleeve through the pipette, and by pressing the operating rod downward, the power plunger is driven to slide downward in the plunger sleeve, squeezing the hydraulic oil to generate pressure, and the first ball valve in the pipette and the infusion pipe is pushed downward, wherein the first ball valve in the pipette is in contact with the limit sleeve, with no gap therebetween, and the first ball valve in the infusion pipe is in contact with the stopper, with a gap therebetween, and the hydraulic oil in the inner cavity of the plunger sleeve is transported to the inner cavity of the inner sleeve through the infusion pipe, and the The sealing plate is lifted up, thereby driving the lifting column to rise, thereby driving the telescopic column to rise, and lifting the objects to be lifted, solving the problem of the existing lifting equipment that is complicated and difficult to operate in lifting and lifting objects; (2) by lifting the bottom end of the telescopic column until it contacts the top of the inner cavity of the base sleeve, by engaging the slot push block with the slot on the side of the uppermost sleeve of the telescopic column, rotating the rocker, driving the turbine sleeve to rotate, thereby driving the gear to rotate, so that the rack rises, driving the slot push block to rise, thereby pushing up the uppermost sleeve, until the positioning columns at the bottom of both sides of the uppermost sleeve enter the positioning holes at the top of the secondary layer, the telescopic column is extended upward by a sleeve distance, and several sleeves of the telescopic column are extended, so that the objects on the top of the telescopic column can be transported to the designated location, completing the transportation, solving the problem of the existing lifting equipment with limited lifting distance, unable to transport objects upward for a certain distance, and large size, which is inconvenient to carry.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A hydraulic jacking column, comprising a load-bearing base, a base sleeve, a telescopic column, a telescopic assist mechanism, and a hydraulic mechanism, wherein the base sleeve is vertically installed at the axial position of the top of the load-bearing base, a push rod is installed on one side of the load-bearing base, a hydraulic mechanism is installed at the bottom of the inner cavity of the base sleeve, a support plate is installed on the top of the hydraulic mechanism, a telescopic column is installed on the top of the support plate, the bottom end of the telescopic column is installed through the inner cavity of the base sleeve, and a telescopic assist mechanism is rotatably installed on one side of the bottom of the telescopic column;

[0007] The telescopic column is formed by a plurality of sleeves with successively decreasing diameters being connected in sequence, a plurality of the sleeves are provided with a slot on their outer walls, a plurality of the sleeves are provided with a positioning hole on both sides of the top, a plurality of the sleeves are provided with a positioning column on both sides of the bottom through a spring, and the positioning column of the upper layer and the positioning hole of the lower layer are matching components;

[0008] The telescopic assist mechanism comprises a mounting box, a rocker, a rack, and a slot push block. The mounting box is provided with a rack through it, the top of the rack is rotatably provided with a slot push block, one end of the mounting box is rotatably provided with a rocker, one end of the rocker is sleeved with a turbine sleeve, the turbine sleeve is installed in the inner cavity of the mounting box, a gear is rotatably provided in the inner cavity of the mounting box, the top of the gear is meshed with the turbine sleeve, and one side of the gear is meshed with the rack;

[0009] The hydraulic mechanism comprises a liquid storage base, an outer sleeve, an inner sleeve, a lifting column, a connecting sleeve, and a plunger sleeve. The outer sleeve is installed on one side of the top of the liquid storage base, and the plunger sleeve is installed on the other side of the top of the liquid storage base. The plunger sleeve is connected to one side of the outer sleeve. A power plunger is installed on the top of the plunger sleeve. The top of the power plunger is rotatably connected to one end of the bottom of the connecting sleeve. An operating rod is movably installed on the connecting sleeve. A linkage plate is rotatably installed on the bottom of the connecting sleeve away from the end of the power plunger. The bottom end of the linkage plate is rotatably installed on the top of the liquid storage base, and the inner sleeve is installed in the inner cavity of the outer sleeve. The outer sleeve and the inner sleeve are sealed. A sealing plate is installed in the inner cavity of the inner sleeve, a lifting column is installed on the top of the sealing plate, and the bottom end of the lifting column is installed through the inner cavity of the inner sleeve.

[0010] As a further solution of the present invention: a liquid suction tube, a liquid infusion tube, and a liquid return tube are installed inside the liquid storage base, one end of the liquid suction tube is connected between the outer sleeve and the inner sleeve, the other end of the liquid suction tube is connected to the inner cavity of the plunger sleeve, one end of the liquid infusion tube is connected to the inner cavity of the inner sleeve, the other end of the liquid infusion tube is connected to the inner cavity of the plunger sleeve, one end of the liquid return tube is connected between the outer sleeve and the inner sleeve, and the other end of the liquid suction tube is connected to the inner cavity of the inner sleeve.

[0011] As a further solution of the present invention: a block and a limit sleeve are installed in the inner cavity of one end of the pipette and the infusion tube close to the plunger sleeve, a first ball valve is installed between the block and the limit sleeve, the block in the pipette is located above the limit sleeve, and the block in the infusion tube is located below the limit sleeve.

[0012] As a further solution of the present invention: a pressure relief groove is opened on one side of the bottom of the liquid return pipe, a second ball valve is installed in the inner cavity at the bottom of the liquid return pipe, and one end of the second ball valve is connected to one end of the reset bolt.

[0013] As a further solution of the present invention: the inner cavity of the inner sleeve below the sealing plate and between the outer sleeve and the inner sleeve are loaded with hydraulic oil.

[0014] As a further solution of the present invention: the working process of the hydraulic jacking column is as follows:

[0015] Lifting process:

[0016] S1. Move the hydraulic jacking column to the bottom of the object to be lifted, hold the operating rod, and insert the operating rod into the connecting sleeve;

[0017] S2, lift the operating rod upward, drive the power plunger to slide upward in the plunger sleeve, generate suction, and suck the first ball valve in the suction tube and the infusion tube upward, wherein the first ball valve of the suction tube contacts the stopper with a gap, and the first ball valve in the infusion tube contacts the limit sleeve with no gap, and the hydraulic oil between the outer sleeve and the inner sleeve is sucked into the inner cavity of the plunger sleeve through the suction tube;

[0018] S3, press the operating rod downward to drive the power plunger to slide downward in the plunger sleeve, squeeze the hydraulic oil to generate pressure, and push the first ball valve in the suction tube and the infusion tube downward, wherein the first ball valve in the suction tube contacts the limit sleeve without a gap, and the first ball valve in the infusion tube contacts the stopper with a gap, and the hydraulic oil in the inner cavity of the plunger sleeve is transported to the inner cavity of the inner sleeve through the infusion tube, and the sealing plate is lifted, thereby driving the lifting column to rise;

[0019] S4, repeating steps S2 and S3, continuously driving the lifting column to rise, thereby driving the telescopic column to rise, and lifting the object to be lifted;

[0020] S5, the lifting process is completed, the reset bolt is turned to drive the second ball valve to move to the pressure relief groove, so that the hydraulic oil in the inner cavity of the inner sleeve returns to the outer sleeve and the inner sleeve through the return pipe, and the lifting column descends to the initial position;

[0021] Upward conveying process:

[0022] T1. Move the hydraulic lifting column to the position where the object needs to be transported upwards, install the object to be transported on the top of the telescopic column, and lift the bottom end of the telescopic column until it contacts the top of the inner cavity of the base sleeve in the same way as the above steps;

[0023] T2. Engage the slot push block with the slot on the side of the topmost sleeve of the telescopic column, rotate the rocker, drive the turbine sleeve to rotate, and then drive the gear to rotate, so that the rack rises, and drives the slot push block to rise, so as to push up the topmost sleeve, until the positioning columns at the bottom of both sides of the topmost sleeve enter the positioning holes at the top of the second layer, and the telescopic column extends upward by a sleeve distance;

[0024] T3. Repeat step T2 to extend the multiple sleeves of the telescopic column until the object on the top of the telescopic column reaches the designated location, completing the transportation.

[0025] Beneficial effects of the present invention:

[0026] (1) A hydraulic jacking column of the present invention extends an operating rod into a connecting sleeve, and by lifting the operating rod upward, a power plunger is driven to slide upward in the plunger sleeve, thereby generating suction force, and the first ball valve in the liquid suction pipe and the liquid infusion pipe are attracted upward, wherein the first ball valve in the liquid suction pipe contacts with a stopper, and there is a gap therebetween, and the first ball valve in the liquid infusion pipe contacts with a limit sleeve, and there is no gap therebetween, and the hydraulic oil between the outer sleeve and the inner sleeve is sucked into the inner cavity of the plunger sleeve through the liquid suction pipe, and by pressing the operating rod downward, the power plunger is driven to slide downward in the plunger sleeve, and the hydraulic oil is squeezed to generate pressure, and the liquid suction pipe and the liquid infusion pipe are attracted upward. The first ball valve in the liquid pipe is pushed downward, wherein the first ball valve of the liquid suction pipe contacts the limit sleeve without a gap therebetween, and the first ball valve in the liquid delivery pipe contacts the stopper with a gap therebetween, and the hydraulic oil in the inner cavity of the plunger sleeve is delivered to the inner cavity of the inner sleeve through the liquid delivery pipe, and the sealing plate is lifted up, thereby driving the lifting column to rise, thereby driving the telescopic column to rise, and lifting the object to be lifted up; the hydraulic lifting column only needs to extend the operating rod into the connecting sleeve, and cyclically push the operating rod up and down to lift and lower the object, which is simple to operate, saves time and effort, and the hydraulic lifting column has a simple structure and is easy to produce;

[0027] (2) A hydraulic lifting column of the present invention lifts the bottom end of the telescopic column to contact the top of the inner cavity of the base sleeve, and engages the slot push block with the slot on the side of the uppermost sleeve of the telescopic column to rotate the rocker, thereby driving the turbine sleeve to rotate, thereby driving the gear to rotate, so that the rack rises, driving the slot push block to rise, thereby pushing up the uppermost sleeve, until the positioning columns at the bottom of both sides of the uppermost sleeve enter the positioning holes at the top of the second layer, and the telescopic column is extended upward by a sleeve distance, and several sleeves of the telescopic column are extended, so that the objects on the top of the telescopic column can be transported to the designated location, and the transportation is completed; the hydraulic lifting column can transport objects upward by installing the telescopic column. The hydraulic lifting column is small in size and easy to carry, which solves the difficulty of using large lifting machinery in narrow areas and low-rise buildings, and avoids the problems of low efficiency and high fatigue of manual transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a structural schematic diagram of a hydraulic jacking column in the present invention;

[0030] Figure 2 It is a three-dimensional diagram of a hydraulic jacking column in the present invention in working state;

[0031] Figure 3 It is a structural schematic diagram of the load-bearing base in the present invention;

[0032] Figure 4 It is a schematic diagram of the internal structure of the base sleeve in the present invention;

[0033] Figure 5 It is a structural schematic diagram of the telescopic assisting mechanism in the present invention;

[0034] Figure 6 It is a schematic diagram of the internal structure of the telescopic assisting mechanism in the present invention;

[0035] Figure 7 It is a structural schematic diagram of the hydraulic mechanism in the present invention;

[0036] Figure 8 It is a schematic diagram of the principle of the hydraulic mechanism in the present invention;

[0037] Fig. 9 The present invention Figure 8 The enlarged schematic diagram of point A in the middle;

[0038] Fig.10 The present invention Figure 8 A magnified schematic diagram of point B in the middle.

[0039] In the figure: 101, load-bearing base; 102, base sleeve; 103, telescopic column; 104, telescopic power mechanism; 105, push rod; 106, operating rod; 107, hydraulic mechanism; 108, support plate; 109, positioning column; 110, positioning hole; 111, installation box; 112, rocker; 113, rack; 114, slot push block; 115, turbine sleeve; 116, gear; 117, liquid storage Base; 118, reset bolt; 119, outer sleeve; 120, inner sleeve; 121, lifting column; 122, connecting sleeve; 123, linkage plate; 124, power plunger; 125, plunger sleeve; 126, sealing plate; 127, suction tube; 128, infusion tube; 129, stopper; 130, first ball valve; 131, limit sleeve; 132, return pipe; 133, pressure relief groove; 134, second ball valve. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] See also Figure 1-10As shown, this embodiment is a hydraulic jacking column, including a load-bearing base 101, a base sleeve 102, a telescopic column 103, a telescopic assist mechanism 104, and a hydraulic mechanism 107. The base sleeve 102 is vertically installed at the top axial position of the load-bearing base 101, a push rod 105 is installed on one side of the load-bearing base 101, a hydraulic mechanism 107 is installed at the bottom of the inner cavity of the base sleeve 102, a support plate 108 is installed on the top of the hydraulic mechanism 107, and a telescopic column 103 is installed on the top of the support plate 108. The bottom end of the telescopic column 103 is installed through the inner cavity of the base sleeve 102, and the telescopic assist mechanism 104 is rotatably installed on one side of the bottom of the telescopic column 103;

[0043] The telescopic column 103 is formed by a plurality of sleeves with decreasing diameters being connected in sequence, a plurality of sleeves are provided with a slot on their outer walls, a plurality of sleeves are provided with a positioning hole 110 on both sides of the top, and a plurality of sleeves are provided with a positioning column 109 on both sides of the bottom through a spring, and the upper positioning column 109 and the lower positioning hole 110 are mating components;

[0044] The telescopic assist mechanism 104 includes a mounting box 111, a rocker 112, a rack 113, and a slot push block 114. The rack 113 is installed through the mounting box 111, and the slot push block 114 is rotatably installed on the top of the rack 113. The rocker 112 is rotatably installed on one end of the mounting box 111, and a turbine sleeve 115 is sleeved on one end of the rocker 112. The turbine sleeve 115 is installed in the inner cavity of the mounting box 111. A gear 116 is rotatably installed in the inner cavity of the mounting box 111. The top of the gear 116 is meshed and connected to the turbine sleeve 115, and one side of the gear 116 is meshed and connected to the rack 113.

[0045] The hydraulic mechanism 107 includes a liquid storage base 117, an outer sleeve 119, an inner sleeve 120, a lifting column 121, a connecting sleeve 122, and a plunger sleeve 125. The outer sleeve 119 is installed on one side of the top of the liquid storage base 117, and the plunger sleeve 125 is installed on the other side of the top of the liquid storage base 117. The plunger sleeve 125 is connected to one side of the outer sleeve 119. A power plunger 124 is installed on the top of the plunger sleeve 125. The top of the power plunger 124 is rotatably connected to the bottom end of the connecting sleeve 122. The connecting sleeve 125 An operating rod 106 is movably installed on the upper part of the connecting sleeve 122, a linkage plate 123 is rotatably installed at one end of the bottom of the connecting sleeve 122 away from the power plunger 124, and the bottom end of the linkage plate 123 is rotatably installed on the top of the liquid storage base 117. An inner sleeve 120 is installed in the inner cavity of the outer sleeve 119, and the outer sleeve 119 and the inner sleeve 120 are tightly connected. A sealing plate 126 is installed in the inner cavity of the inner sleeve 120, and a lifting column 121 is installed on the top of the sealing plate 126. The bottom end of the lifting column 121 is installed in the inner cavity of the inner sleeve 120.

[0046] A liquid suction tube 127, a liquid infusion tube 128, and a liquid return tube 132 are installed inside the liquid storage base 117. One end of the liquid suction tube 127 is connected between the outer sleeve 119 and the inner sleeve 120, and the other end of the liquid suction tube 127 is connected to the inner cavity of the plunger sleeve 125. One end of the liquid infusion tube 128 is connected to the inner cavity of the inner sleeve 120, and the other end of the liquid infusion tube 128 is connected to the inner cavity of the plunger sleeve 125. One end of the liquid return tube 132 is connected between the outer sleeve 119 and the inner sleeve 120, and the other end of the liquid suction tube 127 is connected to the inner cavity of the inner sleeve 120.

[0047] A stopper 129 and a limiting sleeve 131 are installed in the inner cavity of the end of the suction tube 127 and the infusion tube 128 close to the plunger sleeve 125, and a first ball valve 130 is installed between the stopper 129 and the limiting sleeve 131. The stopper 129 in the suction tube 127 is located above the limiting sleeve 131, and the stopper 129 in the infusion tube 128 is located below the limiting sleeve 131.

[0048] A pressure relief groove 133 is provided at one side of the bottom of the liquid return pipe 132 . A second ball valve 134 is installed in the inner cavity at the bottom of the liquid return pipe 132 . One end of the second ball valve 134 is connected to one end of the reset bolt 118 .

[0049] The inner cavity of the inner sleeve 120 below the sealing plate 126 and between the outer sleeve 119 and the inner sleeve 120 are loaded with hydraulic oil.

[0050] See also Figure 1-10 As shown, the working process of a hydraulic jacking column in this embodiment is as follows:

[0051] Lifting process:

[0052] S1, move the hydraulic jacking column to the bottom of the object to be lifted, hold the operating rod 106, and extend the operating rod 106 into the connecting sleeve 122;

[0053] S2, lift the operating rod 106 upward, drive the power plunger 124 to slide upward in the plunger sleeve 125, generate suction, and suck the first ball valve 130 in the suction tube 127 and the infusion tube 128 upward, wherein the first ball valve 130 of the suction tube 127 contacts with the stopper 129 with a gap therebetween, and the first ball valve 130 in the infusion tube 128 contacts with the limit sleeve 131 with no gap therebetween, and the hydraulic oil between the outer sleeve 119 and the inner sleeve 120 is sucked into the inner cavity of the plunger sleeve 125 through the suction tube 127;

[0054] S3, press the operating rod 106 downward to drive the power plunger 124 to slide downward in the plunger sleeve 125, squeeze the hydraulic oil to generate pressure, and push the first ball valve 130 in the suction tube 127 and the infusion tube 128 downward, wherein the first ball valve 130 of the suction tube 127 contacts with the limit sleeve 131 without a gap, and the first ball valve 130 in the infusion tube 128 contacts with the stopper 129 with a gap, and the hydraulic oil in the inner cavity of the plunger sleeve 125 is transported to the inner cavity of the inner sleeve 120 through the infusion tube 128, and the sealing plate 126 is lifted, thereby driving the lifting column 121 to rise;

[0055] S4, repeating steps S2 and S3, continuously driving the lifting column 121 to rise, thereby driving the telescopic column 103 to rise, and lifting the object to be lifted;

[0056] S5, the lifting process is completed, the reset bolt 118 is rotated, and the second ball valve 134 is driven to move to the pressure relief groove 133, so that the hydraulic oil in the inner cavity of the inner sleeve 120 returns to the outer sleeve 119 and the inner sleeve 120 through the return pipe 132, and the lifting column 121 descends to the initial position;

[0057] Upward conveying process:

[0058] T1. Move the hydraulic lifting column to the position where the object needs to be transported upward, install the object to be transported on the top of the telescopic column 103, and lift the bottom end of the telescopic column 103 until it contacts the top of the inner cavity of the base sleeve 102 in the same way as the above steps;

[0059] T2, the slot push block 114 is engaged with the slot on the side of the uppermost sleeve of the telescopic column 103, and the rocker 112 is rotated to drive the turbine sleeve 115 to rotate, thereby driving the gear 116 to rotate, so that the rack 113 rises, driving the slot push block 114 to rise, thereby pushing up the uppermost sleeve, until the positioning columns 109 at the bottom of both sides of the uppermost sleeve enter the positioning holes 110 at the top of the second layer, and the telescopic column 103 is extended upward by a sleeve;

[0060] T3, repeat step T2, and extend all the sleeves of the telescopic column 103 until the object on the top of the telescopic column 103 reaches the designated location, and the transportation is completed.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A hydraulic jacking column, characterized in that: It comprises a load-bearing base (101), a base sleeve (102), a telescopic column (103), a telescopic assist mechanism (104), and a hydraulic mechanism (107); the base sleeve (102) is vertically mounted at the axial center position of the top of the load-bearing base (101); a push rod (105) is mounted on one side of the load-bearing base (101); a hydraulic mechanism (107) is mounted at the bottom of the inner cavity of the base sleeve (102); a support plate (108) is mounted on the top of the hydraulic mechanism (107); a telescopic column (103) is mounted on the top of the support plate (108); the bottom end of the telescopic column (103) is installed through the inner cavity of the base sleeve (102); and the telescopic assist mechanism (104) is rotatably mounted on one side of the bottom of the telescopic column (103); The telescopic column (103) is formed by a plurality of sleeves with successively decreasing diameters being sleeved in sequence, a plurality of the sleeves are provided with a slot on their outer walls, a plurality of the sleeves are provided with a positioning hole (110) on both sides of the top, a plurality of the sleeves are provided with a positioning column (109) installed on both sides of the bottom via a spring, and the positioning column (109) of the upper layer and the positioning hole (110) of the lower layer are mating components; The telescopic assist mechanism (104) comprises a mounting box (111), a rocker (112), a rack (113), and a slot push block (114); the mounting box (111) is provided with a rack (113) which is installed through the mounting box; the top of the rack (113) is provided with a slot push block (114) which is rotatably installed; one end of the mounting box (111) is provided with a rocker (112) which is rotatably installed; one end of the rocker (112) is provided with a turbine sleeve (115); the turbine sleeve (115) is installed in an inner cavity of the mounting box (111); a gear (116) is rotatably installed in the inner cavity of the mounting box (111); the top of the gear (116) is meshedly connected to the turbine sleeve (115); and one side of the gear (116) is meshedly connected to the rack (113); The hydraulic mechanism (107) comprises a liquid storage base (117), an outer sleeve (119), an inner sleeve (120), a lifting column (121), a connecting sleeve (122), and a plunger sleeve (125). The outer sleeve (119) is installed on one side of the top of the liquid storage base (117), and the plunger sleeve (125) is installed on the other side of the top of the liquid storage base (117). The plunger sleeve (125) is connected to one side of the outer sleeve (119). A power plunger (124) is installed on the top of the plunger sleeve (125) through which it slides. The top of the power plunger (124) is rotatably connected to the bottom end of the connecting sleeve (122). The connecting sleeve (1 22) is movably penetrated and installed with an operating rod (106); a linkage plate (123) is rotatably installed at one end of the bottom of the connecting sleeve (122) away from the power plunger (124); the bottom end of the linkage plate (123) is rotatably installed on the top of the liquid storage base (117); an inner sleeve (120) is installed in the inner cavity of the outer sleeve (119); the outer sleeve (119) and the inner sleeve (120) are sealed and connected; a sealing plate (126) is installed in the inner cavity of the inner sleeve (120); a lifting column (121) is installed on the top of the sealing plate (126); and the bottom end of the lifting column (121) is penetrated and installed in the inner cavity of the inner sleeve (120); A liquid suction tube (127), a liquid infusion tube (128), and a liquid return tube (132) are installed inside the liquid storage base (117); one end of the liquid suction tube (127) is connected to between the outer sleeve (119) and the inner sleeve (120), and the other end of the liquid suction tube (127) is connected to the inner cavity of the plunger sleeve (125); one end of the liquid infusion tube (128) is connected to the inner cavity of the inner sleeve (120), and the other end of the liquid infusion tube (128) is connected to the inner cavity of the plunger sleeve (125); one end of the liquid return tube (132) is connected to between the outer sleeve (119) and the inner sleeve (120), and the other end of the liquid suction tube (127) is connected to the inner cavity of the inner sleeve (120); A stopper (129) and a limiting sleeve (131) are installed in the inner cavity of one end of the liquid suction tube (127) and the liquid infusion tube (128) close to the plunger sleeve (125); a first ball valve (130) is installed between the stopper (129) and the limiting sleeve (131); the stopper (129) in the liquid suction tube (127) is located above the limiting sleeve (131), and the stopper (129) in the liquid infusion tube (128) is located below the limiting sleeve (131); A pressure relief groove (133) is provided on one side of the bottom of the liquid return pipe (132), and a second ball valve (134) is installed in the inner cavity at the bottom of the liquid return pipe (132), with one end of the second ball valve (134) connected to one end of the reset bolt (118).

2. A hydraulic jacking column according to claim 1, characterized in that: The inner cavity of the inner sleeve (120) below the sealing plate (126) and between the outer sleeve (119) and the inner sleeve (120) are loaded with hydraulic oil.

3. A hydraulic jacking column according to claim 1, characterized in that: The working process of the hydraulic jacking column is as follows: Lifting process: S1, move the hydraulic jacking column to the bottom of the object to be lifted, hold the operating rod (106), and extend the operating rod (106) into the connecting sleeve (122); S2, lifting the operating rod (106) upward, driving the power plunger (124) to slide upward in the plunger sleeve (125), generating suction force, and sucking the first ball valve (130) in the suction tube (127) and the infusion tube (128) upward, wherein the first ball valve (130) of the suction tube (127) contacts the stopper (129) with a gap therebetween, and the first ball valve (130) in the infusion tube (128) contacts the limit sleeve (131) with no gap therebetween, and the hydraulic oil between the outer sleeve (119) and the inner sleeve (120) is sucked into the inner cavity of the plunger sleeve (125) through the suction tube (127); S3, pressing the operating rod (106) downward, driving the power plunger (124) to slide downward in the plunger sleeve (125), squeezing the hydraulic oil to generate pressure, and pushing the first ball valve (130) in the suction tube (127) and the infusion tube (128) downward, wherein the first ball valve (130) of the suction tube (127) contacts the limit sleeve (131) without a gap therebetween, and the first ball valve (130) in the infusion tube (128) contacts the stopper (129) with a gap therebetween, and the hydraulic oil in the inner cavity of the plunger sleeve (125) is transported to the inner cavity of the inner sleeve (120) through the infusion tube (128), and the sealing plate (126) is lifted, thereby driving the lifting column (121) to rise; S4, repeating steps S2 and S3, continuously driving the lifting column (121) to rise, thereby driving the telescopic column (103) to rise, and lifting the object to be lifted; S5, the lifting process is completed, the reset bolt (118) is rotated, and the second ball valve (134) is driven to move into the pressure relief groove (133), so that the hydraulic oil in the inner cavity of the inner sleeve (120) returns to between the outer sleeve (119) and the inner sleeve (120) through the return pipe (132), and the lifting column (121) descends to the initial position; Upward conveying process: T1, move the hydraulic lifting column to the position where the object needs to be transported upward, install the object to be transported on the top of the telescopic column (103), and lift the bottom end of the telescopic column (103) until it contacts the top of the inner cavity of the base sleeve (102) in the same way as the above steps; T2, the slot push block (114) is engaged with the slot on the side of the uppermost sleeve of the telescopic column (103), and the rocker (112) is rotated to drive the turbine sleeve (115) to rotate, thereby driving the gear (116) to rotate, so that the rack (113) rises, driving the slot push block (114) to rise, thereby pushing up the uppermost sleeve, until the positioning columns (109) at the bottom of both sides of the uppermost sleeve enter the positioning holes (110) at the top of the second layer, and the telescopic column (103) is extended upward by the distance of one sleeve; T3. Repeat step T2 to extend the plurality of sleeves of the telescopic column (103) until the object on the top of the telescopic column (103) reaches the designated location, thus completing the transportation.

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