CN110802725B

CN110802725B - Auxiliary form removal device and method for bottom form of stand column

Info

Publication number: CN110802725B
Application number: CN201910872199.XA
Authority: CN
Inventors: 宁英杰; 何智钢; 迟文明; 郭松; 潘森兵; 黄祎涵
Original assignee: Shaoxing Chengtou Construction Industrialization Manufacturing Co ltd; Zhejiang Communications Construction Group Co Ltd
Current assignee: Shaoxing Chengtou Construction Industrialization Manufacturing Co ltd; Zhejiang Communications Construction Group Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-03-23
Anticipated expiration: 2039-09-16
Also published as: CN110802725A

Abstract

An auxiliary form removal device and a form removal method for a bottom form of an upright column aim to solve the technical problem that in the prior art, after prefabrication of the upright column in a factory is completed, the difficulty in demoulding of the bottom form bonded with the bottom surface of a concrete upright column is high. The invention comprises a fixing component fixedly connected with the ground, wherein a supporting component used for supporting a stand column bottom die is connected onto the fixing component, the stand column bottom die is separated from the ground under the action of the supporting component, a pre-tightening component is arranged between the stand column bottom die and the fixing component, the fixing component provides pre-tightening tension force for the stand column bottom die to be separated from the bottom surface of the stand column through the pre-tightening component, and the stand column can be separated from the stand column bottom die under the driving of a shifting component. The invention has the following beneficial effects: (1) compared with the prior art, the plastic film or the artificial partition plate does not need to be laid on the bottom die of the upright post, and the operation of detaching the bottom die of the upright post is simple and quick; (2) the bottom die of the stand column can be detached by selecting a shifting component with low power consumption, and the power consumption of the auxiliary die detaching device is greatly reduced.

Description

Auxiliary form removal device and method for bottom form of stand column

Technical Field

The invention relates to the technical field of die assembly and disassembly, in particular to an auxiliary die disassembly device and an auxiliary die disassembly method for a bottom die of an upright post.

Background

Along with the popularization of the bridge prefabrication and assembly construction process in urban bridge construction, the bridge construction gradually goes to standardization due to the appearance of a large number of prefabricated stand columns and prefabricated capping beams. The existing upright post processing is that after various data of the upright post are obtained, an upright post mould meeting the size requirement is processed in a factory, and then the upright post is cast and processed through a concrete mould. After the stand is poured, the demolding treatment needs to be carried out on the concrete stand inside the stand mold, wherein the bottom mold is tightly adhered to the bottom surface of the concrete stand under the self-weight action of the concrete stand, so that the demolding operation difficulty of the bottom mold is high. In the prior art, a common bottom die demoulding method is that before concrete pouring, a plastic film or an artificial clapboard is laid on a bottom die, and after dust removal and flatness adjustment are carried out on the bottom die, concrete pouring is carried out on an upright post; the method can avoid the tight adhesion between the upright post and the bottom die, and provides certain convenience for the demoulding of the upright post, but in the practical application process, two problems exist, one is that the bottom surface of the upright post and the bottom die are equal to a separated structure, the bottom surface of the upright post is not provided with a fixed supporting member in the forming process of the concrete upright post, a plastic film or an artificial partition plate is easy to relatively deviate from the bottom die under the action of external force, the deviation distance cannot be observed by naked eyes due to the limitation of the side die on the upright post, but the stress distribution in the upright post can be greatly influenced, so that the prefabricated upright post does not meet the quality requirement; secondly, the plastic film or the artificial clapboard still can be tightly adhered to the upright column to a certain degree, the plastic film or the artificial clapboard needs to be separated from the upright column for the second time after the bottom die stripping is carried out on the upright column, the stripping times of the upright column are increased, and the stripping process of the upright column is complex and tedious.

Chinese patent application No. CN 201220477732.6 discloses a demolding device, which comprises a frame, wherein a motor, a pulley, a demolding member and a mold member are sequentially arranged in the axial direction of the frame; the pulley arranged on the motor is connected with one end of the demoulding part through a steel wire rope, and the other end of the demoulding part is connected with the mould part; the demoulding part comprises a pulling plate which is vertical to the axial direction and is arranged at the upper surface and the lower surface, and an electromagnet and a pulley which are respectively arranged on two surfaces of the pulling plate; the pulling plate moves up and down along the upright posts on the two sides of the frame; the die part comprises a circular inner film device and a pull disc, wherein the circular inner film device is composed of a cylindrical inner die and a contraction connecting rod which are formed by hinging 3 arc plates, and the pull disc is fixed on the circular inner film device through a screw and a nut; the electromagnet is adsorbed on the pull disc; the contraction connecting rod is driven to rotate by an electromagnet arranged on the stand column; the mould piece and the outer film are arranged on a mould trolley which can slide along the guide rail; and a steel wire rope guide plate parallel to the pulling plate is arranged on the frame and positioned between the pulley and the pulling plate, and the steel wire rope penetrates through the center of the steel wire rope guide plate.

In the patent, the pull rod is rotated by the suction force of the electromagnet to reduce the inner mold, then the pull disc of the inner mold is sucked by the electromagnet on the pull plate, and finally the pulley and the steel wire rope are driven by the motor to move to pull the inner mold out of the mold, so that the demolding process is simple; however, since the height and weight of the upright are both large, the cost required by the frame corresponding to the framework is high, and the frame corresponding to the framework is required in the demolding process of the upright with different heights, the demolding operation cost is high, so that the method cannot be practically applied to the demolding operation of the upright.

Disclosure of Invention

The invention provides an auxiliary form removing device and a form removing method of a bottom form of an upright post, aiming at overcoming the technical problem that the demolding difficulty of the bottom form bonded with the bottom surface of a concrete upright post is higher after the prefabrication of the upright post is finished in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions.

The utility model provides an auxiliary form removal device of stand die block, includes the fixed component with ground fixed connection, be connected with the supporting component who is used for supporting the stand die block on the fixed component, the stand die block separates with ground under the effect of supporting component, is equipped with the pretension component between stand die block and the fixed component, and the fixed component provides the pretension pulling force with the stand bottom surface separation for the stand die block through the pretension component, and the stand can separate with the stand die block under the drive of aversion component.

When the prefabricated method is used for forming and processing the stand column, a positioning hole needs to be formed in a bottom die of the stand column, vertical steel bars in a steel bar framework of the stand column are matched and positioned with a sleeve in the positioning hole, in order to prevent slurry leakage in the positioning hole in the concrete pouring process, a bottom plug matched and sealed with the inner wall surface of the sleeve needs to be installed in the positioning hole in the lower end surface of the bottom die of the stand column, and the bottom plug needs to be firstly removed in the form removal process of the bottom die of the stand column, and then subsequent form removal operation can be carried; in the prior art, a plastic film or an artificial partition plate is laid on a bottom die to facilitate demolding of the stand column, but the method has three problems, one is that a sleeve cannot be installed on the bottom die to cause that a vertical steel bar in a steel bar framework cannot be positioned; secondly, the plastic film or the artificial clapboard is easy to generate relative offset with the bottom die under the action of external force, the offset distance cannot be observed by naked eyes due to the limit of the side die on the stand column, but the stress distribution in the stand column is greatly influenced, so that the prefabricated stand column does not meet the quality requirement; and thirdly, the plastic film or the artificial partition plate still can be tightly adhered to the stand column to a certain degree, the stand column is subjected to secondary separation after bottom die demolding, the demolding times of the stand column are increased, and the demolding process of the stand column is complex and tedious. The invention provides an auxiliary form removing device of a stand column bottom die, wherein a supporting member is matched with a shifting member to separate the stand column bottom die from the ground, a bottom plug on the stand column bottom die can be quickly removed, a fixing member fixedly connected with the ground is connected with the stand column bottom die through a pre-tightening member, the pre-tightening member provides pre-tightening tension for the stand column bottom die to separate from the bottom surface of the stand column, the shifting member drives the stand column to move, and as the stand column bottom die is fixedly connected with the ground through the pre-tightening member and the fixing member, the bonding part of the stand column bottom die and the bottom surface of the stand column is separated under the driving of the reverse tension of the shifting member and the pre-. The auxiliary form removal device can remove the bottom forms of the stand columns in one step, and compared with the prior art, the auxiliary form removal device does not need to lay and lay a plastic film or an artificial partition plate on the bottom forms of the stand columns, and the bottom forms of the stand columns are simple and quick to remove.

Preferably, the upright post bottom die is in an oblique-angle rectangular plate shape, a plurality of positioning holes and mounting holes penetrating along the thickness direction of the upright post bottom die are formed in the upright post bottom die, the positioning holes and the mounting holes are arranged in a rectangular shape, the positioning holes are located on a first inner side offset line of the outer edge of the upright post bottom die, the mounting holes are located on a second inner side offset line of the outer edge of the upright post bottom die, the second inner side offset line is located on the outer side of the first inner side offset line, and bottom plugs for preventing slurry leakage are arranged in the positioning holes.

According to the invention, the positioning hole for installing the bottom plug is positioned on the first inner side offset line of the oblique angle rectangular plate-shaped bottom die, the installation hole for installing the pre-tightening component is positioned on the second inner side offset line of the bottom die, the second inner side offset line is positioned on the outer side of the first inner side offset line, and the bottom plug cannot be removed under the blocking of the pre-tightening component after the pre-tightening component is installed, so that the technical scheme limits the removal sequence of the bottom die of the upright post, namely the bottom plug is removed firstly, and then the pre-tightening component is installed; in addition, the second inner side offset line is located on the outer side of the first inner side offset line, namely, the acting point of the pre-tightening component providing pre-tightening tension to the bottom die is close to the edge of the bottom die, the moment of the pre-tightening tension acting on the upright post bottom die is large, in the actual die removal operation, the tension of the shifting component driving the upright post to be separated from the bottom die is small, the upright post bottom die can be removed by selecting the shifting component with low power consumption, and the power consumption of the demoulding device is greatly reduced compared with that of a demoulding device in a comparison document.

Preferably, the fixing member includes a frame, a fixing rod having a rectangular cross section and dividing the inside of the rectangular frame into a shape of a "well", and a positioning rod having a circular cross section and having one end connected to the inner side surface of the frame and the other end connected to the side surface of the fixing rod.

In the invention, the fixing component is of a frame structure, specifically, the fixing component comprises a frame, a fixing rod and a positioning rod, the fixing rod with a rectangular cross section divides the inside of the rectangular frame into a shape like a Chinese character 'jing', one end of the positioning rod with a circular cross section is connected with the inner side surface of the frame, the other end of the positioning rod is connected with the side plane of the fixing rod, the fixing component has light weight, the auxiliary form removal device has high flexibility in the actual production process, the auxiliary form removal device can be used for removing the bottom form of the upright column by carrying the auxiliary form removal device to the position near the upright column to be subjected to form removal, the upright column does not need to be moved by a large.

Preferably, the supporting member comprises a supporting frame and an inclined strut, the supporting frame comprises a horizontal frame and a supporting rod perpendicular to the horizontal frame, one end of the supporting rod is connected to an angular point of the lower end face of the horizontal frame, the other end of the supporting rod is connected to an intersection point of the fixing rod, one end of the inclined strut is connected to a side plane of the supporting rod close to the frame, and the other end of the inclined strut is connected to the upper end face of the fixing rod.

The technical scheme limits the supporting component, wherein one end of the inclined strut is connected to the side plane of the supporting rod close to the frame, the other end of the inclined strut is connected with the upper end face of the fixed rod, namely, the inclined strut is uniformly distributed on the peripheral surface of the supporting frame, and the horizontal component of the supporting force of the supporting frame by the inclined strut is concentrated to the center of the horizontal frame, so that the supporting frame cannot tilt due to overlarge mass of the horizontal frame, and the stability of the supporting component is high.

Preferably, the pretensioning component comprises a positioning lug plate, a connecting rod and a hook, the mounting rod of the hook is welded or in threaded connection with a mounting hole in the bottom stand die, the positioning lug plate is a waist-round plate provided with two through holes, a first through hole of the positioning lug plate is sleeved on the outer peripheral surface of the positioning rod, a second through hole of the positioning lug plate is connected with one end of the connecting rod, and the other end of the connecting rod is connected with the body of the hook below the bottom stand die through a pull rope.

In the technical scheme, the first through hole of the positioning lug plate is sleeved on the peripheral surface of the positioning rod, the second through hole of the positioning lug plate is connected with one end of the connecting rod, and the other end of the connecting rod is connected with the body of the hook below the bottom die of the upright post through the pull rope; the positioning ear plate can slide on the positioning rod, and under the condition that the pretightening force of the pull rope is the same, the pretightening force of the pretightening member on the bottom die of the stand column can be adjusted by adjusting the relative distance between the positioning ear plate and the hook.

Preferably, the connecting rod comprises a sleeve and a fork rod, the fork rod comprises a fork head and a straight rod, the straight rod is in threaded connection with the inner wall surface of the end portion of the sleeve, the fork head is located outside the sleeve and is divided into a first fork rod and a second fork rod, the fork head of the first fork rod is hinged to a second through hole of the positioning lug plate, the fork head of the second fork rod is connected with the hook through a pull rope, and the pull rope is in a tightening state.

The jaw of first fork arm is articulated with the second perforating hole of location otic placode, so the contained angle between connecting rod and the location otic placode is adjustable, when the area of stand die block is great, rotates first fork arm near fixed component's frame, can shorten stay cord length.

Preferably, the fork rod is "Y" type, and the jaw includes otic placode and transition pole, and the first otic placode and the second otic placode of symmetrical interval arrangement are connected respectively to the open end that is the transition pole of U type, are equipped with concentric constant diameter hinge hole on first otic placode and the second otic placode, and one section of cylindrical straight-bar is connected to the blind end of transition pole, and the axle center line of first otic placode and second otic placode is perpendicular with the straight-bar.

The utility model discloses a column straight-bar is connected to the blind end of transition pole, and the straight-bar is connected to the axle center line of first otic placode and second otic placode, and the straight-bar is perpendicular to the axle center line of first otic placode and second otic placode.

Preferably, the displacement member may be a crane.

A form removing method of an auxiliary form removing device utilizing the upright post bottom die comprises the following steps of:

(1) fixing the frame of the fixing member with the ground, hoisting and displacing the upright column to the position above the supporting member by the displacement member, enabling the upper end surface of the horizontal frame of the supporting frame to be tightly attached to the lower end surface of the upright column bottom die, continuously adjusting and displacing the upright column by the displacement member in the process, and loosening the displacement member to place the upright column and the upright column bottom die on the supporting member when the distance between the outer peripheral surface of the horizontal frame and the corresponding outer edge of the upright column bottom die is basically consistent;

(2) removing the grout stop plug, and then welding or connecting the mounting rod of the hook with the mounting hole on the lower end surface of the bottom die of the upright post in a threaded manner, wherein the body of the hook is positioned below the bottom die of the upright post;

(3) hinging the fork head of the first fork rod with a second through hole of the positioning lug plate, and connecting the fork head of the second fork rod with the hook through a pull rope, wherein the pull rope is ensured to be in a tensioned state in the process;

(4) after the shifting member hoists the upright column, the upright column is driven to move away from the supporting member along the ground normal direction, and after the bottom surface of the upright column is completely separated from the bottom die of the upright column, the shifting member hoists the upright column to place the upright column on the ground.

In conclusion, the invention has the following beneficial effects: (1) compared with the prior art, the plastic film or the artificial partition plate does not need to be laid on the bottom die of the upright post, and the operation of detaching the bottom die of the upright post is simple and quick; (2) the bottom die of the stand column can be detached by selecting a shifting component with low power consumption, and the power consumption of the auxiliary die detaching device is greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the fixing member, the supporting member and the pretensioner member in the present invention.

Fig. 3 is a schematic structural view of the connecting rod of the present invention.

Fig. 4 is a schematic structural view of the fork of the present invention.

Fig. 5 is a partial enlarged view of the whole of the present invention.

FIG. 6 is a schematic structural view of the bottom mold of the pillar of the present invention.

In the figure:

1. the fixing member comprises a fixing member 11, a frame 12, a fixing rod 13, a positioning rod 2, a column bottom die 21, a positioning hole 22, a mounting hole 2a, a first inner side offset line 2b, a second inner side offset line 3, a supporting member 31, a supporting frame 311, a horizontal frame 312, a supporting rod 32, a diagonal rod 4, a pre-tightening member 41, a positioning lug plate 411, a first through hole 412, a second through hole 42, a connecting rod 421, a sleeve 422, a fork rod 4221, a fork head 4222, a straight rod 43, a hook 431, a mounting rod 432, a body 44, a pull rope 5, a bottom plug 6, a first fork rod 7, a second fork rod 8, a lug plate 81, a first lug plate 82, a second lug plate 9, a transition rod 10, a hinge hole 11 and a column.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1 to 6, an auxiliary form removal device for a column bottom form comprises a fixing member 1 fixedly connected with the ground, and is characterized in that a supporting member 3 for supporting a column bottom form 2 is connected to the fixing member, the column bottom form is separated from the ground under the action of the supporting member, a pre-tightening member 4 is arranged between the column bottom form and the fixing member, the fixing member provides a pre-tightening pulling force separated from the bottom surface of the column for the column bottom form through the pre-tightening member, and the column can be separated from the column bottom form under the driving of a displacement member; the upright post bottom die is in an oblique angle rectangular plate shape, a plurality of positioning holes 21 and mounting holes 22 which are communicated along the thickness direction of the upright post bottom die are arranged on the upright post bottom die, the positioning holes and the mounting holes are all in a rectangular shape, the positioning holes are positioned on a first inner side offset line 2a at the outer edge of the upright post bottom die, the mounting holes are positioned on a second inner side offset line 2b at the outer edge of the upright post bottom die, the second inner side offset line is positioned at the outer side of the first inner side offset line, and a bottom plug 5 for preventing slurry leakage is arranged in the; the fixing component comprises a frame 11, a fixing rod 12 and a positioning rod 13, the fixing rod with a rectangular cross section divides the interior of the rectangular frame into a shape like a Chinese character 'jing', one end of the positioning rod with a circular cross section is connected with the inner side surface of the frame, and the other end of the positioning rod is connected with the side plane of the fixing rod; the supporting member comprises a supporting frame 31 and an inclined strut 32, the supporting frame comprises a horizontal frame 311 and a supporting rod 312 perpendicular to the horizontal frame, one end of the supporting rod is connected to an angular point of the lower end face of the horizontal frame, the other end of the supporting rod is connected with an intersection point of the fixed rod, one end of the inclined strut is connected to the side plane of the supporting rod close to the frame, and the other end of the inclined strut is connected with the upper end face of the fixed rod; the pre-tightening component comprises a positioning ear plate 41, a connecting rod 42 and a hook 43, a mounting rod 431 of the hook is welded or in threaded connection with a mounting hole on the bottom die of the upright post, the positioning ear plate is a kidney-shaped plate provided with two through holes, a first through hole 411 of the positioning ear plate is sleeved on the outer peripheral surface of the positioning rod, a second through hole 412 of the positioning ear plate is connected with one end of the connecting rod, and the other end of the connecting rod is connected with a body 432 of the hook below the bottom die of the upright post through a pull rope 44; the connecting rod comprises a sleeve 421 and a fork rod 422, the fork rod comprises a fork head 4221 and a straight rod 4222, the straight rod is in threaded connection with the inner wall surface of the end part of the sleeve, the fork head is positioned outside the sleeve, the fork rod is divided into a first fork rod 6 and a second fork rod 7, the fork head of the first fork rod is hinged with the second through hole of the positioning lug plate, the fork head of the second fork rod is connected with the hook through a pull rope, and the pull rope is in a tightened state; the fork rod is Y-shaped, the fork head comprises an ear plate 8 and a transition rod 9, the open end of the U-shaped transition rod is respectively connected with a first ear plate 81 and a second ear plate 82 which are symmetrically arranged at intervals, the first ear plate and the second ear plate are provided with concentric hinge holes 10 with equal diameters, the closed end of the transition rod is connected with one section of the columnar straight rod, and the axis connecting line of the first ear plate and the second ear plate is vertical to the straight rod; the shifting component can be a crane.

In the direction shown in the figure, the upright post bottom die, the supporting component and the fixing component are sequentially arranged from top to bottom, a pre-tightening component is uniformly distributed on the peripheral surface of the supporting component, wherein a frame of the fixing component is surrounded by four flat plates vertical to the ground, the inside of the frame is split into a shape like a Chinese character jing by a fixing rod, the cross section of the fixing rod is rectangular, a columnar positioning rod is arranged in a small-area rectangular partition formed by the fixing rod and the frame, one end of the positioning rod is connected with the fixing rod, the other end of the positioning rod is connected with the inner wall surface of the frame, in the embodiment, three positioning rods are arranged in the small-area rectangular partition formed by each fixing rod and the frame at equal intervals, positioning lug plates are sleeved on the positioning rods and can slide on the positioning rods in a reciprocating manner, the supporting component comprises a supporting frame and, in this embodiment, the number of the support rods is four, and the support rods are uniformly distributed at four intersection points of the fixed rod, one end of each support rod is connected to a side plane of the support rod close to the frame, the other end of each support rod is fixedly connected with the upper end face of the fixed rod, and the number of the support rods in this embodiment is eight; the pre-tightening component comprises a positioning ear plate, a connecting rod and a hook, a mounting rod of the hook is welded or in threaded connection with a mounting hole on the bottom die of the stand column, the positioning ear plate is a waist-shaped plate provided with two through holes, a first through hole of the positioning ear plate is sleeved on the outer peripheral surface of the positioning rod, a second through hole of the positioning ear plate is connected with one end of the connecting rod, and the other end of the connecting rod is connected with a body of the hook below the bottom die of the stand column through a pull rope; the connecting rod comprises a sleeve and a fork rod, the fork rod comprises a fork head and a straight rod, the straight rod is in threaded connection with the inner wall surface of the end part of the sleeve, the fork head is positioned outside the sleeve, the fork rod is divided into a first fork rod and a second fork rod, the fork head of the first fork rod is hinged with a second through hole of the positioning lug plate, the fork head of the second fork rod is connected with the hook through a pull rope, and the pull rope is in a tightened state; the fork arm is "Y" type, and the jaw includes otic placode and transition pole, and the first otic placode and the second otic placode of symmetrical interval arrangement are connected respectively to the open end that is the transition pole of U type, are equipped with concentric constant diameter hinge hole on first otic placode and the second otic placode, and one section of cylindrical straight-bar is connected to the blind end of transition pole, and the axle center line of first otic placode and second otic placode is perpendicular with the straight-bar.

Claims

1. The utility model provides an auxiliary form removal device of stand die block, includes the fixed component with ground fixed connection, its characterized in that, be connected with the supporting component who is used for supporting the stand die block on the fixed component, the stand die block separates with ground under the effect of supporting component, be equipped with the pretension component between stand die block and the fixed component, the fixed component provides the pretension pulling force with the separation of stand bottom surface for the stand die block through the pretension component, the stand can separate with the stand die block under the drive of aversion component, equipartition pretension component on the outer peripheral face of supporting component, the frame of fixed component is enclosed by four flat boards with ground vertically.

2. The auxiliary form removal device for the column bottom form according to claim 1, wherein the column bottom form is in a shape of an oblique rectangular plate, the column bottom form is provided with a plurality of positioning holes and mounting holes penetrating through the column bottom form along the thickness direction of the column bottom form, the positioning holes and the mounting holes are arranged in a rectangular shape, the positioning holes are located on a first inner side offset line of the outer edge of the column bottom form, the mounting holes are located on a second inner side offset line of the outer edge of the column bottom form, the second inner side offset line is located on the outer side of the first inner side offset line, and a bottom plug for preventing slurry leakage is arranged in the positioning holes.

3. The auxiliary form removing device for the bottom form of the stand column as claimed in claim 2, wherein the fixing member comprises a frame, a fixing rod and a positioning rod, the fixing rod with a rectangular cross section divides the inside of the rectangular frame into a shape of a Chinese character jing, one end of the positioning rod with a circular cross section is connected with the inner side surface of the frame, and the other end of the positioning rod is connected with the side plane of the fixing rod.

4. The auxiliary form removing device for the bottom form of the stand column of claim 3, wherein the supporting member comprises a supporting frame and a diagonal brace, the supporting frame comprises a horizontal frame and a supporting rod perpendicular to the horizontal frame, an angle point of a lower end surface of the horizontal frame is connected with one end of the supporting rod, the other end of the supporting rod is connected with an intersection point of the fixing rod, one end of the diagonal brace is connected to a side plane of the supporting rod close to the frame, and the other end of the diagonal brace is connected with an upper end surface of the fixing rod.

5. The auxiliary form removal device for the column bottom mold according to claim 3, wherein the pre-tightening member comprises a positioning ear plate, a connecting rod and a hook, the mounting rod of the hook is welded or screwed with the mounting hole of the column bottom mold, the positioning ear plate is a kidney-shaped plate provided with two through holes, the first through hole of the positioning ear plate is sleeved on the outer peripheral surface of the positioning rod, the second through hole of the positioning ear plate is connected with one end of the connecting rod, and the other end of the connecting rod is connected with the body of the hook below the column bottom mold through a pull rope.

6. The auxiliary form removing device for the bottom form of the stand column according to claim 5, wherein the connecting rod comprises a sleeve and a fork rod, the fork rod comprises a fork head and a straight rod, the straight rod is in threaded connection with the inner wall surface of the end portion of the sleeve, the fork head is located outside the sleeve, the fork rod is divided into a first fork rod and a second fork rod, the fork head of the first fork rod is hinged to the second through hole of the positioning lug plate, the fork head of the second fork rod is connected with the hook through a pull rope, and the pull rope is in a tightened state.

7. The auxiliary form removing device for the bottom form of the stand column according to claim 6, wherein the fork rod is "Y" shaped, the fork head comprises ear plates and a transition rod, the open end of the U-shaped transition rod is respectively connected with the first ear plate and the second ear plate which are symmetrically arranged at intervals, the first ear plate and the second ear plate are provided with concentric equal-diameter hinge holes, the closed end of the transition rod is connected with one section of the cylindrical straight rod, and the axis connecting line of the first ear plate and the second ear plate is perpendicular to the straight rod.

8. The apparatus of claim 1, wherein the displacement member is a crane.

9. A method for removing a mold by using the auxiliary mold removing device for the bottom mold of the column according to any one of claims 1 to 8, comprising the steps of: