阅读说明：本技术 桥梁支座的临时固定调节组合设备 (Temporary fixing and adjusting combined equipment for bridge support ) 是由 冯涛 张书林 庞伟峰 吕金鑫 宋小键 于 2021-09-28 设计创作，主要内容包括：本发明公开了桥梁支座的临时固定调节组合设备,涉及桥梁扶持技术领域,解决了目前使用的支座固定类设备主要以替换支座进行支撑为主,在较高的桥梁使用不方便,不具备对原桥墩进行辅助维护的功能的问题。桥梁支座的临时固定调节组合设备,包括包围座,所述包围座为正方体板状结构,包围座的前侧中间开设有方槽,包围座的底部四周设置有四组万向轮,通过设置有固定液压缸和扶件,提供了扶持加固功能,锁紧螺杆千斤顶按压顶座,活塞杆和活塞盘向下移动将液压箱内部液压油排出输送到四组固定液压缸的内部,固定液压缸伸缩,对桥墩提供推举的应力,实现扶持加固,而卡件的设置,能够对桥墩进行契合,增加固定桥墩时的摩擦力。(The invention discloses temporary fixing and adjusting combined equipment for a bridge support, relates to the technical field of bridge support, and solves the problems that currently used support fixing equipment mainly replaces a support to support, is inconvenient to use in a higher bridge and does not have the function of auxiliary maintenance on an original bridge pier. Bridge beam supports's interim fixed combination unit of adjusting, including surrounding the seat, surround the seat and be square platelike structure, the square groove has been seted up in the middle of the front side of surrounding the seat, the bottom of surrounding the seat is provided with four groups of universal wheels all around, through being provided with fixed pneumatic cylinder and holding up the piece, support the reinforcement function, the footstock is pressed to the locking screw jack, piston rod and piston disc downstream carry the inside of four groups of fixed pneumatic cylinders with the inside hydraulic oil discharge of hydraulic pressure incasement portion, fixed pneumatic cylinder is flexible, provide the stress of lifting to the pier, realize supporting the reinforcement, and the setting of fastener, can agree with the pier, frictional force when increasing fixed pier.)

1. Bridge beam supports's interim fixed combination equipment of adjusting, its characterized in that includes:

the surrounding seat is of a square plate-shaped structure, and a square groove is formed in the middle of the front side of the surrounding seat; the two sides of the bottom of the surrounding seat are fixedly provided with corner sliding grooves, the middle position of the bottom of the surrounding seat, which is positioned in the corner sliding grooves, is fixedly provided with a rotating supporting foot, the corner of the rotating supporting foot is of an arc-shaped structure, and the rotating supporting foot can rotate for 0-90 degrees;

the main body of the pull frame is of a U-shaped structure, lug structures are arranged on two sides of the pull frame, and the lug structures are arranged in corner sliding chutes in a sliding fit manner;

the screw rod is rotatably arranged in the middle of the rear side of the bottom of the surrounding seat, the screw rod is in threaded connection with the pull frame, and a gear is arranged outside the rear end of the screw rod;

the four groups of fixed hydraulic cylinders are rotatably arranged at the top of the surrounding seat through hinged connection, and the fixed hydraulic cylinders are aligned to the central point of the surrounding seat;

and the hydraulic tank is fixedly arranged on the rear side of the top of the surrounding seat.

2. The apparatus as claimed in claim 1, wherein said enclosure further comprises:

the inner edge strip is uniformly arranged at the rear half section of the inner side of the surrounding seat, a driven hydraulic cylinder is rotatably arranged in the front end of the inner edge strip through hinge connection, and the telescopic ends of the driven hydraulic cylinder are fixedly provided with U-shaped shaft brackets; the front end of the inner side of the surrounding seat is rotatably provided with two groups of push rods through hinge connection, the push rods incline towards the back of the middle, and the U-shaped shaft frame is hinged with the push rods.

3. The temporary fixing and adjusting assembly for bridge supports according to claim 1, wherein said tension frame further comprises:

the two sides of the pull frame are hinged and rotatably provided with connecting rods, and the other end of each connecting rod is hinged and rotatably provided with a foot block;

the sliding column is integrally arranged on one side of the foot block and is connected with the rotary supporting foot in a sliding mode.

4. The temporary fixing and adjusting combination equipment for the bridge support according to claim 1, wherein two groups of pressure levers are rotatably arranged at two ends of the rear side of the surrounding seat, and one side of each pressure lever is of a fan-shaped fluted disc structure; two groups of synchronous shafts are rotatably arranged at the bottom of the rear side of the surrounding seat, and gears are arranged on the outer sides of the synchronous shafts and meshed with gears at the rear end of the screw rod; the outer side of the synchronizing shaft is provided with an inner ratchet wheel gear which is meshed with the fan-shaped fluted disc of the pressure lever, and the directions of the two groups of inner ratchet wheel gears are opposite.

5. The temporary fixing and adjusting combination equipment for the bridge bearing according to claim 1, wherein four groups of output hydraulic cylinders are embedded around the top of the surrounding seat; two sides and the rear sides of the four groups of output hydraulic cylinders are provided with steel wire hoses which are communicated; the two groups of output hydraulic cylinders on the front side are respectively provided with a steel wire hose which is communicated with the driven hydraulic cylinder.

6. The bridge bearer temporary fixation and adjustment assembly according to claim 5, wherein said output hydraulic cylinder further comprises:

tray, the fixed tray that is provided with in flexible end top of output pneumatic cylinder, the top rotation of tray is provided with two sets of cone pulleys, the bottom laminating cone pulley of fixed pneumatic cylinder.

7. The temporary fixing and adjusting assembly for bridge supports according to claim 1, wherein said fixed hydraulic cylinder further comprises:

the supporting piece is fixedly arranged at the telescopic end of the fixed hydraulic cylinder and is provided with a right-angle inner angle, and built-in grooves are formed in the right-angle inner angle;

the bottom of the supporting piece is fixedly provided with a balancing weight;

the rebounding piece is fixedly arranged in the built-in groove;

the fastener, the main part of fastener is the trapezium structure, and fastener one side is fixed and is provided with two sets of spring levers, and the fastener cover is established the spring and is passed the fixed separation blade that is provided with of bounce-back spare.

8. The temporary fixing and adjusting combination equipment for the bridge bearing according to claim 1, wherein the hydraulic tank is of a concave structure, a connecting channel is arranged inside the hydraulic tank, and the top of the channel is of a cylindrical groove structure; the hydraulic tank is connected and communicated with the four groups of fixed hydraulic cylinders through steel wire hoses.

9. The temporary fixing and adjusting combination device for bridge supports according to claim 8, wherein the hydraulic tank further comprises:

four groups of piston rods are fixedly arranged on the periphery of the bottom of the top seat, and the piston rods penetrate through an internal channel of the hydraulic tank and are fixedly provided with piston discs; a screw jack is fixedly arranged between the top seat and the hydraulic tank.

Technical Field

The invention relates to the technical field of bridge support, in particular to temporary fixing and adjusting combined equipment for a bridge support.

Background

The bridge is modern building commonly used, and the bottom of general bridge is provided with the pier, and the pier is mostly square structure, provides the support function, need utilize fixed adjusting's equipment to support the bridge when the slope appears in the bridge floor to subsequent maintenance.

Through retrieving for example, the patent that publication number is CN209428975U discloses a temporary support device for bridge construction, including bottom plate and diaphragm, one side fixedly connected with fixed box at bottom plate top to the bottom fixedly connected with motor of fixed incasement wall, the first threaded rod of one end fixedly connected with of motor output shaft to the opposite side at bottom plate top is rotated through the bearing and is connected with the second threaded rod, the both sides at diaphragm top are fixedly connected with riser respectively to supreme fixedly connected with slide rail and horizontal piece in proper order are followed to one side of two risers, the top of first threaded rod and second threaded rod is passed through the bearing and is rotated with the bottom of two horizontal pieces respectively and be connected. This a temporary support device for bridge construction, the staff of being convenient for carries out high regulation to support device in the bridge work progress, and the staff of being convenient for adjusts according to the user demand of difference, and the better user demand who has satisfied in the bridge construction has improved the practicality.

For another example, a patent with publication number CN212426768U discloses a temporary support device for bridge construction convenient to adjust, which comprises a supporting sliding barrel, wherein two groups of supporting seats are fixedly connected to the lower surface of the supporting sliding barrel, a T-shaped sliding groove is formed in the lower surface of the supporting sliding barrel, a T-shaped sliding block is clamped in the T-shaped sliding groove, and a lifting base is fixedly connected to the bottom of the supporting sliding barrel. This temporary support device is used in bridge construction convenient to adjust, the rotation through the threaded rod drives reciprocating of elevator, make the backup pad go up and down, the realization is to the regulation of device height, through drive mechanism's speed reduction, reduce the speed of device altitude variation, adjusting device's that can be more accurate height, support the slide bar, the infundibulate cavity makes the fine sand become the cylinder with supporting the slide cartridge, the motion range who supports the slide bar has been restricted, the high error of device has been reduced, make the device can be simple, accurate and stable adjusting device's height according to the circumstances.

Similar to the above application, the fixing device has the following disadvantages:

firstly, the currently used support fixing equipment mainly replaces a support to support, is inconvenient to use in a higher bridge and does not have the function of auxiliary maintenance on an original bridge pier; secondly, the function of self-feeding and adjusting the supporting position according to the width of the bridge is not provided; thirdly, the device does not have a stable and fast positioning structure for controlling and is not beneficial to fast fixing the device.

Thus, the existing requirements are not met, for which we propose a temporary fixing and adjusting combined device for bridge supports.

Disclosure of Invention

Problem (A)

The invention aims to provide temporary fixing and adjusting combined equipment for a bridge support, which aims to solve the problems that the prior support fixing equipment mainly replaces a support to support, is inconvenient to use in a higher bridge and does not have the function of auxiliary maintenance on an original bridge pier; secondly, the function of self-feeding and adjusting the supporting position according to the width of the bridge is not provided; thirdly, the device does not have a stable and fast positioning structure for controlling and is not beneficial to the rapid fixation of the device.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the temporary fixing and adjusting combined equipment for the bridge support comprises an enclosing seat, wherein the enclosing seat is of a square plate-shaped structure, a square groove is formed in the middle of the front side of the enclosing seat, and four groups of universal wheels are arranged on the periphery of the bottom of the enclosing seat; the two sides of the bottom of the surrounding seat are fixedly provided with corner sliding grooves, the middle position of the bottom of the surrounding seat, which is positioned in the corner sliding grooves, is fixedly provided with a rotating supporting foot, the corner of the rotating supporting foot is of an arc-shaped structure, and the rotating supporting foot can rotate for 0-90 degrees; the main body of the pull frame is of a U-shaped structure, lug structures are arranged on two sides of the pull frame, and the lug structures are arranged in corner sliding chutes in a sliding fit manner; the screw rod is rotatably arranged in the middle of the rear side of the bottom of the surrounding seat, the screw rod is in threaded connection with the pull frame, and a gear is arranged outside the rear end of the screw rod; the four groups of fixed hydraulic cylinders are rotatably arranged at the top of the surrounding seat through hinged connection, and the fixed hydraulic cylinders are aligned to the central point of the surrounding seat; and the hydraulic tank is fixedly arranged on the rear side of the top of the surrounding seat.

Preferably, the enclosure further comprises: the inner edge strip is uniformly arranged at the rear half section of the inner side of the surrounding seat, a driven hydraulic cylinder is rotatably arranged in the front end of the inner edge strip through hinge connection, and the telescopic ends of the driven hydraulic cylinder are fixedly provided with U-shaped shaft brackets; the front end of the inner side of the surrounding seat is rotatably provided with two groups of push rods through hinge connection, the push rods incline towards the back of the middle, and the U-shaped shaft frame is hinged with the push rods.

Preferably, the pull frame further comprises: the two sides of the pull frame are hinged and rotatably provided with connecting rods, and the other end of each connecting rod is hinged and rotatably provided with a foot block; the sliding column is integrally arranged on one side of the foot block and is connected with the rotary supporting foot in a sliding mode.

Preferably, two groups of pressure levers are rotatably arranged at two ends of the rear side of the surrounding seat, and one side of each pressure lever is of a fan-shaped fluted disc structure; two groups of synchronous shafts are rotatably arranged at the bottom of the rear side of the surrounding seat, and gears are arranged on the outer sides of the synchronous shafts and meshed with gears at the rear end of the screw rod; the outer side of the synchronizing shaft is provided with an inner ratchet wheel gear which is meshed with the fan-shaped fluted disc of the pressure lever, and the directions of the two groups of inner ratchet wheel gears are opposite.

Preferably, four groups of output hydraulic cylinders are embedded around the top of the surrounding seat; two sides and the rear sides of the four groups of output hydraulic cylinders are provided with steel wire hoses which are communicated; the two groups of output hydraulic cylinders on the front side are respectively provided with a steel wire hose which is communicated with the driven hydraulic cylinder.

Preferably, the output hydraulic cylinder further comprises: tray, the fixed tray that is provided with in flexible end top of output pneumatic cylinder, the top rotation of tray is provided with two sets of cone pulleys, the bottom laminating cone pulley of fixed pneumatic cylinder.

Preferably, the fixed hydraulic cylinder further comprises: the supporting piece is fixedly arranged at the telescopic end of the fixed hydraulic cylinder and is provided with a right-angle inner angle, and built-in grooves are formed in the right-angle inner angle; the bottom of the supporting piece is fixedly provided with a balancing weight; the rebounding piece is fixedly arranged in the built-in groove; the fastener, the main part of fastener is the trapezium structure, and fastener one side is fixed and is provided with two sets of spring levers, and the fastener cover is established the spring and is passed the fixed separation blade that is provided with of bounce-back spare.

Preferably, the hydraulic tank is of a concave structure, a connecting channel is arranged inside the hydraulic tank, and the top of the channel is of a cylindrical groove structure; the hydraulic tank is connected and communicated with the four groups of fixed hydraulic cylinders through steel wire hoses.

Preferably, the hydraulic tank further comprises: four groups of piston rods are fixedly arranged on the periphery of the bottom of the top seat, and the piston rods penetrate through an internal channel of the hydraulic tank and are fixedly provided with piston discs; a screw jack is fixedly arranged between the top seat and the hydraulic tank.

(III) advantageous effects

The invention provides temporary fixing and adjusting combined equipment for a bridge support, which is provided with a fixed hydraulic cylinder and a supporting piece to provide a supporting and reinforcing function, a locking screw jack presses a top seat, a piston rod and a piston disc move downwards to discharge and convey hydraulic oil in a hydraulic box to the insides of four groups of fixed hydraulic cylinders, the fixed hydraulic cylinders stretch and retract to provide lifting stress for a bridge pier, supporting and reinforcing are realized, the arrangement of clamping pieces can be matched with the bridge pier to increase the friction force when the bridge pier is fixed, and compared with the existing equipment, the temporary fixing and adjusting combined equipment can be used for supporting and maintaining the original bridge pier, and is high in safety.

Secondly, the setting of push rod, slave cylinder and output hydraulic cylinder, the function of feeding the adjustment support position according to the bridge width is provided by oneself, when pier contact push rod, push the push rod backward, shrink two sets of slave cylinder, make slave cylinder's inside extrusion output, realize the input of power, the hydraulic oil of output can get into output hydraulic cylinder, prop up output hydraulic cylinder, tray and cone pulley rise, lift fixed pneumatic cylinder, it can not touch the pier to rise the back support piece, and be the angle display of conveniently feeding, can avoid appearing the dead point.

Furthermore, the setting of foot piece, the function of carrying out the rapid and stable installation to equipment is provided, the one set of depression bar of lifting, the other end of depression bar descends through lever principle, it is rotatory to utilize ratchet gear to drive the synchronizing shaft in the cooperation of fan-shaped fluted disc structure, the synchronizing shaft passes through the gear and drives the lead screw rotation, the lead screw passes through screw drive and impels the arm-tie, it is rotatory with foot piece downstream through the connecting rod, make foot piece perpendicular ground, foot piece bottom does not touch ground this moment, impel the arm-tie to continue to remove one section distance, make the foot piece stretch out, fix and support the enclosure seat, another set of depression bar of lifting, can realize resetting.

Drawings

FIG. 1 is a schematic perspective front view of an embodiment of the present invention;

FIG. 2 is a schematic perspective rear view structure in an embodiment of the present invention;

FIG. 3 is a schematic bottom view of an embodiment of the present invention;

FIG. 4 is a schematic view of a connection structure of a slave cylinder according to an embodiment of the present invention;

FIG. 5 is a schematic sectional view of a hydraulic tank according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a foot block according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of a leg member in an embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of part A in the embodiment of the present invention;

FIG. 9 is an enlarged partial structural view of a portion B in the embodiment of the present invention;

in fig. 1 to 9, the correspondence between the part names or lines and the reference numbers is:

1. an enclosure base; 101. an inner edge strip; 102. corner chutes; 103. rotating the arm brace; 2. pulling the frame; 201. a connecting rod; 202. a foot block; 203. a traveler; 3. a lead screw; 4. a pressure lever; 5. a synchronizing shaft; 6. a push rod; 7. a slave hydraulic cylinder; 701. a U-shaped shaft bracket; 8. an output hydraulic cylinder; 801. a tray; 802. a cone pulley; 9. fixing a hydraulic cylinder; 901. a supporting piece; 902. a built-in groove; 903. a balancing weight; 904. a resilient member; 905. a fastener; 906. a spring lever; 10. a hydraulic tank; 1001. a top seat; 1002. a piston rod; 1003. a piston disc; 11. screw jacks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 9, an embodiment of the present invention includes: the temporary fixing and adjusting combined equipment for the bridge support comprises an enclosing seat 1, wherein the enclosing seat 1 is of a square plate-shaped structure, a square groove is formed in the middle of the front side of the enclosing seat 1, and four groups of universal wheels are arranged on the periphery of the bottom of the enclosing seat 1; two sides of the bottom of the surrounding seat 1 are fixedly provided with corner sliding grooves 102, the bottom of the surrounding seat 1 is fixedly provided with rotary supporting feet 103 in the middle positions of the corner sliding grooves 102, the corners of the rotary supporting feet 103 are of arc-shaped structures, and the rotary supporting feet 103 can rotate for 0-90 degrees; the main body of the pull frame 2 is in a U-shaped structure, the two sides of the pull frame 2 are provided with lug structures, and the lug structures are matched and slidably arranged in the corner sliding grooves 102; the screw rod 3 is rotatably arranged in the middle of the rear side of the bottom of the surrounding seat 1, the screw rod 3 is in threaded connection with the pull frame 2, and a gear is arranged outside the rear end of the screw rod 3; the fixed hydraulic cylinders 9 are arranged in four groups, the four groups of fixed hydraulic cylinders 9 are rotatably arranged at the top of the surrounding base 1 through hinged connection, and the fixed hydraulic cylinders 9 are all aligned to the central point of the surrounding base 1; and the hydraulic tank 10 is fixedly arranged at the back side of the top of the surrounding seat 1.

Wherein, surround seat 1 and still including: the inner edge strip 101 is uniformly arranged at the rear half section of the inner side of the surrounding seat 1, the driven hydraulic cylinder 7 is rotatably arranged in the front end of the inner edge strip 101 through hinged connection, and the telescopic ends of the driven hydraulic cylinder 7 are fixedly provided with U-shaped shaft frames 701; two groups of push rods 6 are rotatably arranged at the front end of the inner side of the surrounding seat 1 through hinge connection, the push rods 6 incline towards the middle and the back, and the U-shaped shaft frame 701 is hinged with the push rods 6.

Referring to fig. 1, when the push rod 6 contacts the pier, it will extend backwards, and then the two sets of slave hydraulic cylinders 7 will be contracted, so that the interior of the slave hydraulic cylinders 7 will be squeezed and output, and the power input will be realized.

Wherein, the pull frame 2 further comprises: the two sides of the pull frame 2 are hinged and rotatably provided with a connecting rod 201, and the other end of the connecting rod 201 is hinged and rotatably provided with a foot block 202; the sliding column 203 is integrally arranged on one side of the foot block 202, and the sliding column 203 is connected with the rotary supporting foot 103 in a sliding mode.

Referring to fig. 3, the lead screw 3 is used to rotate and push the pull frame 2, the connecting rod 201 and the foot block 202 form a slider mechanism, so that the foot block 202 stands, and then the foot block 202 can move downwards for a certain distance after standing until the enclosing base 1 is supported to suspend the universal wheel, thereby providing a stable supporting member.

Two groups of pressure levers 4 are rotatably arranged at two ends of the rear side of the surrounding seat 1, and one side of each pressure lever 4 is of a fan-shaped fluted disc structure; two groups of synchronizing shafts 5 are rotatably arranged at the bottom of the rear side of the surrounding seat 1, and gears are arranged on the outer sides of the synchronizing shafts 5 and meshed with gears at the rear end of the screw rod 3; the outer side of the synchronizing shaft 5 is provided with an inner ratchet gear which is meshed with the fan-shaped fluted disc of the pressure lever 4, and the directions of the two groups of inner ratchet gears are opposite.

Referring to fig. 8, the cooperation of the pressure lever 4 and the synchronizing shaft 5 can provide a stable high-power transmission function, and can rapidly control the rotation direction of the screw rod 3, thereby achieving rapid positioning and cancellation of the device.

Wherein, four groups of output hydraulic cylinders 8 are embedded and arranged around the top of the surrounding seat 1; two sides and the rear side of the four groups of output hydraulic cylinders 8 are provided with steel wire hoses which are communicated; two groups of output hydraulic cylinders 8 at the front side are respectively provided with a steel wire hose which is communicated with the driven hydraulic cylinder 7.

Referring to fig. 4, hydraulic oil squeezed and output from the interior of the slave cylinder 7 enters the output cylinder 8, and the output cylinder 8 is supported, so that power conversion is realized.

Wherein, output hydraulic cylinder 8 still includes: tray 801, output hydraulic cylinder 8's flexible end top is fixed to be provided with tray 801, and tray 801's top is rotatory to be provided with two sets of cone pulleys 802, and the bottom of fixed hydraulic cylinder 9 is laminated cone pulley 802.

Referring to fig. 9, the cone pulley 802 may provide a force for assisting sliding and a bearing force, and further may lift the fixed hydraulic cylinder 9 such that the fixed hydraulic cylinder 9 does not contact a pier and is lifted to an angle at which lifting is possible.

Wherein, fixed hydraulic cylinder 9 is still including: the supporting part 901 is fixedly arranged at the telescopic end of the fixed hydraulic cylinder 9, the supporting part 901 is provided with right-angled inner angles, and built-in grooves 902 are formed in the right-angled inner angles; a balancing weight 903, wherein the balancing weight 903 is fixedly arranged at the bottom of the supporting part 901; the rebounding piece 904, the rebounding piece 904 is fixedly arranged in the built-in groove 902; fastener 905, the main part of fastener 905 is the trapezium structure, and fastener 905 one side is fixed and is provided with two sets of spring levers 906, and fastener 905 overlaps establishes the spring and passes bounce-back piece 904 fixed separation blade that is provided with.

Referring to fig. 7, four sets of holding members 901 embrace the pier and can provide the function of upwards pushing up to holding members 901 can automatic balance in the process of pushing up, and then fastener 905 rebounds through the spring auto-lock, can furthest increase frictional force, assists fixedly to the pier.

The hydraulic tank 10 is of a concave structure, a connecting channel is arranged inside the hydraulic tank 10, and the top of the channel is of a cylindrical groove structure; the hydraulic tank 10 is communicated with four groups of fixed hydraulic cylinders 9 through steel wire hoses; the hydraulic tank 10 further includes: four groups of piston rods 1002 are fixedly arranged on the periphery of the bottom of the top seat 1001, and piston discs 1003 are fixedly arranged on the piston rods 1002 through an internal channel of the hydraulic tank 10; a screw jack 11 is fixedly arranged between the top seat 1001 and the hydraulic tank 10.

Referring to fig. 5, by moving the piston disc 1003 downward by using the screw jack 11, the hydraulic oil in the hydraulic tank 10 can be pushed into the fixed hydraulic cylinder 9, and the fixed hydraulic cylinder 9 is extended and lifted.

The working principle is as follows: during the use, at first will surround the outside of seat 1 removal enclosure pier, and then when pier contact push rod 6, push rod 6 backward away, shrink two sets of slave cylinder 7, make the inside extrusion output of slave cylinder 7, realize the input of power, the hydraulic oil of output can get into output pneumatic cylinder 8, props up output pneumatic cylinder 8, and tray 801 and cone pulley 802 rise, lift fixed hydraulic cylinder 9, and it can not touch the pier to rise back righting piece 901.

A group of pressure bars 4 are lifted, the other ends of the pressure bars 4 descend according to a lever principle, a sector fluted disc structure is matched with an inner ratchet gear to drive a synchronizing shaft 5 to rotate, the synchronizing shaft 5 drives a screw rod 3 to rotate through a gear, the screw rod 3 pushes a pull frame 2 through thread transmission, a foot block 202 moves downwards through a connecting rod 201 to rotate, the foot block 202 is perpendicular to the ground, the bottom of the foot block 202 is not in contact with the ground at the moment, the pull frame 2 is pushed to move continuously for a certain distance, the foot block 202 stretches out, and the surrounding seat 1 is fixed and supported.

Locking screw jack 11 presses footstock 1001, and piston rod 1002 and piston disc 1003 move down carry the inside hydraulic oil discharge of hydraulic tank 10 to the inside of four fixed pneumatic cylinders 9 of group, and fixed pneumatic cylinder 9 is flexible, provides the stress of lifting to the pier, realizes the support and consolidates, and the setting of fastener 905 can agree with the pier, frictional force when increasing fixed pier.

The bottom of the holding piece 901 is provided with a balancing weight 903, so that automatic balance can be realized, and the inner angle of the holding piece 901 is kept parallel to the corner of the pier.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.