CN116356690A - Template for pouring bridge pier column - Google Patents
Template for pouring bridge pier column Download PDFInfo
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- CN116356690A CN116356690A CN202111683660.0A CN202111683660A CN116356690A CN 116356690 A CN116356690 A CN 116356690A CN 202111683660 A CN202111683660 A CN 202111683660A CN 116356690 A CN116356690 A CN 116356690A
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- 238000005266 casting Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 23
- 239000004568 cement Substances 0.000 description 15
- 238000003754 machining Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 238000009415 formwork Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009194 climbing Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a template for pouring bridge pier columns, which comprises more than two template blades and a plurality of template blade connecting and locking devices for connecting the template blades; the connecting part of the template blade is provided with an ear piece which is provided with a conical hole; the template blade connecting and locking device comprises a connecting oil cylinder and a taper pin connected with the connecting oil cylinder; the taper pin can be inserted into or separated from the taper hole of the lug plate corresponding to the joint between the adjacent template blades under the drive of the connecting oil cylinder, and the adjacent template blades are locked or unlocked through the cooperation of the taper pin and the taper hole of the lug plate. The template disclosed by the invention has the advantages of compact structure, uniform stress, safety, reliability, easiness in operation and high construction efficiency, and can be used for realizing automatic pouring construction of bridge pier columns.
Description
Technical Field
The invention relates to the technical field of building bridge construction, in particular to a template for pouring bridge pier columns for cylindrical pier type bridge construction.
Background
Highways, railways and municipal construction in China develop at a high speed. Most of the construction projects relate to bridge construction, and an important ring of bridge construction is pouring of cement pier columns.
The pouring of traditional cement pier stud mainly uses two semicircular templates to pass through the bolt lock, and its adoption is through two leaf template pieces of bolted connection formation pouring cement pier stud's template, adopts this kind of template construction time, needs to build operation platform, workman and need high altitude construction dismantles and install template connecting bolt, has the potential safety hazard, and the operating efficiency is low.
In recent years, a three-leaf pin hinge type bridge pier column climbing formwork technology is presented, a formwork part of the three-leaf pin hinge type bridge pier column climbing formwork is shown in fig. 1, the three-leaf pin hinge type bridge pier column climbing formwork consists of three-leaf formwork blocks 01, two fixing pin hinge shafts 02, a movable pin hinge shaft 03 and a power cylinder 04, the two fixing pin hinge shafts 02 are cylindrical pins, and the movable pin hinge shaft 03 is a through long taper pin shaft. The three-leaf pin hinge type bridge pier column template realizes automatic bridge pier column construction under certain conditions, and improves bridge pier column construction efficiency. However, because the two fixed pin hinge shafts are matched with the movable pin hinge shaft and the power cylinder, and especially the movable pin hinge shaft is a through long taper pin shaft, when the template is slightly deformed in the actual use process, the template is difficult to rotate around the fixed pin hinge shaft because the two fixed pin hinge shafts are longer and have small gaps with the template lug plates; in addition, the hinge shaft of the movable pin is a through long taper pin, namely, a plurality of taper pin joints are arranged on one long pin shaft, a plurality of lug plates between the templates are tapered through the plurality of taper pin joints, and due to machining errors or template deformation, the scheme cannot ensure that the stress of each lug plate is uniform, the templates at the lug plates with small stress cannot be tightly sealed, and even the serious problem of cement slurry leakage is caused.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the template for pouring the bridge pier column, which has the advantages of compact structure, uniform stress, safety, reliability, easy operation, high construction efficiency and convenient locking or loosening.
In order to achieve the above purpose, the present invention provides the following technical solutions: the template for pouring the bridge pier column comprises more than two template blades and a plurality of template blade connecting and locking devices for connecting the template blades; the connecting part of the template blade is provided with an ear piece which is provided with a conical hole; the template blade connecting and locking device comprises a connecting oil cylinder and a taper pin connected with the connecting oil cylinder; the taper pin can be inserted into or separated from the taper hole of the lug plate corresponding to the joint between the adjacent template blades under the drive of the connecting oil cylinder, and the adjacent template blades are locked or unlocked through the cooperation of the taper pin and the taper hole of the lug plate.
The invention adopts a plurality of sets of template blade connecting and locking devices to connect and lock or loosen the template blades. The independent connecting oil cylinders are adopted for driving the taper pins, so that the problems that the gap between the single taper pin and the cement column is small after the template is opened and the template is difficult to rotate around the taper pin-free shaft after being deformed are avoided, and the template is flexible to construct and high in efficiency when the template is adopted for construction. The problem that the template blades are blocked when the template is required to be separated is avoided. In addition, each locking junction adopts independent taper pin to lock, has avoided a long taper pin, when locking through different locking nodes, if there is processing error, then can cause local node template locking not tight, causes the problem of leakage. According to the invention, the taper pins are adopted to independently and synchronously lock the template connecting points, so that the template blades are tightly combined, and slurry leakage is avoided in the construction process. The multiple independent taper pins are adopted for locking, the requirement on machining precision is low, and the machining cost is lower than that of the whole long taper pin.
According to the preferred technical scheme, a taper pin is connected to the cylinder body end of the connecting oil cylinder, and a taper pin is also connected to the piston rod end of the connecting oil cylinder; the connecting oil cylinder stretches and contracts to drive the taper pin at the cylinder body end and the taper pin at the piston end respectively, and the taper pin is inserted into or separated from the taper hole of the lug at the joint between the adjacent template blades, and the adjacent template blades are locked or unlocked through the cooperation of the taper pin and the taper hole of the lug.
Taper pins are respectively connected with the cylinder body end and the piston rod end of the connecting oil cylinder, and the taper pins at the two ends are driven by the connecting oil cylinder to be close to lugs on the template blades under the pushing of acting force and reaction force, so that adjacent template blades are driven to be attached and locked. The taper tightening force of taper pins connected with the two ends of the oil cylinder is the same, the stress of the lug plate is even, and the sealing effect is good.
According to the preferable technical scheme, the connecting part of the template blade is also provided with an outwards turned connecting plate; a spring component is arranged between the adjacent template blades and the connecting plates of the template blades; the spring assembly comprises a spring shaft and a spring sleeved on the spring shaft; the spring shaft is fixed between the adjacent template blade and the connecting plate of the template blade; when the connecting cylinder drives the taper pin to be separated from the taper hole of the lug plate corresponding to the joint between the adjacent template blades, the spring pushes the connecting plate of the adjacent template blades and the template blades to loosen the adjacent template blades which are connected with each other.
When the spring assembly is retracted in the connecting oil cylinder and the taper pin is retracted, the connecting plate between two adjacent template blades is pushed, so that the gap between the template blades is increased. The whole template is easy to flexibly move and convenient and quick to construct, and the whole template is beneficial to being separated from the bridge pier to be constructed. The spring of the spring assembly may be a compression spring or other conventional spring element like a compression spring.
According to the preferred technical scheme, the tip end of the taper pin is provided with a baffle for limiting the axial displacement distance of the taper pin.
The baffle is detachably arranged at the tip end of the taper pin and used for limiting the axial moving distance of the taper pin, preventing the taper pin from being completely separated from the taper hole, and facilitating locking alignment of the taper pin to the taper hole again under the driving of the connecting oil cylinder. The situation that the taper pin cannot be accurately aligned with the taper hole when the taper hole needs to be locked again in case of complete detachment is avoided.
According to the preferable technical scheme, a limiting block is arranged on the connecting oil cylinder, and a rectangular limiting groove for guiding is formed in a position corresponding to the connecting plate; and in the telescopic movement process of the connecting oil cylinder, the limiting block of the connecting oil cylinder slides in a guiding way along the rectangular limiting groove on the corresponding connecting plate.
The bar-shaped limiting block is arranged on the connecting oil cylinder, so that the limiting block slides in the rectangular limiting groove of the connecting plate, and the limiting and guiding functions of the connecting oil cylinder are realized. The connecting oil cylinder and the taper pin can only stretch in the axial direction, and deflection is reduced as much as possible. The locking or releasing between the template blades is more flexible.
According to the preferable technical scheme, the taper pin is connected to the connecting oil cylinder through a pin shaft.
According to the preferable technical scheme, a joint bearing is arranged at the joint of the connecting oil cylinder and the taper pin; and the pin shaft penetrates through the knuckle bearing to connect the taper pin to the connecting oil cylinder.
The joint bearing is matched with the pin shaft to connect the taper pin and the connecting oil cylinder, so that the taper pin and the oil cylinder are more flexibly matched, and the situation that the taper pin is dead due to the influence of machining errors or other factors in site construction and cannot be driven is avoided. The template blade can flexibly rotate around the taper pin.
According to the preferred technical scheme, the taper of the taper pin is less than or equal to twenty degrees, and the taper of the taper hole is less than or equal to twenty degrees. The taper pin with the taper is matched with the taper hole, so that the self-locking of the template blades can be realized, once the template blades are locked, the template blades can be self-locked even if hydraulic power is lost due to the fact that the connecting oil cylinder under certain conditions occurs, and slurry leakage in construction is avoided.
According to the preferable technical scheme, the framework for enhancing the rigidity of the template blade is arranged on the template blade. Is beneficial to enhancing the strength and rigidity of the template blade.
According to the preferable technical scheme, the template blade is arc-shaped; and the templates for pouring bridge pier columns are connected by three-leaf arc-shaped template blades to form a cylindrical template. The upper end and the lower end of the template blade can be provided with outwards turned connecting sheets, and the connecting sheets are provided with connecting bolt holes, so that the template formed by the template blades can be extended in the axial direction without limitation.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the connecting oil cylinder to drive the taper pin to lock and unlock the template blade; the connecting oil cylinder can be controlled remotely and hydraulically, so that the problem that a worker needs to dismantle and install bolts in high-altitude operation in the traditional two-leaf bolt connecting template is solved, and the opening and closing movement of the template can be realized only by remotely controlling the expansion and contraction of the oil cylinder. The template disclosed by the invention can be used for realizing automatic pouring construction of bridge pier columns.
2. According to the invention, a plurality of sets of independent connecting cylinders are adopted to drive independent taper pins to lock and unlock the template blades, so that the problems that the gap between the template and a cement column is small after the template is opened and the template is difficult to rotate around a shaft without the taper pins after being deformed caused by a single taper pin shaft are solved.
3. According to the invention, a plurality of sets of independent connecting oil cylinders are adopted to drive independent taper pins to lock and unlock the template blades, and the locking nodes of the template blades are independently stressed and uniformly stressed, so that the sealing effect is good. The problem that a single oil cylinder controls a long pin shaft with a plurality of taper pins, the stress of each taper pin node is different is solved, and the serious problem that cement slurry leakage occurs because a template at the taper pin node with small stress cannot seal cement slurry due to uneven acceptance is avoided.
Drawings
Fig. 1 is a schematic view of a prior art form for casting bridge pier columns.
Fig. 2 is a schematic view of the overall assembly of the form of the present invention for casting bridge pier columns.
Fig. 3 is a schematic top view of a form for casting bridge pier columns according to the present invention.
Fig. 4 is a schematic view of an exploded structure of a form for casting a pier column of a bridge according to the present invention.
FIG. 5 is a schematic cross-sectional view of the connection between the template blades of the present invention.
Fig. 6 is an enlarged schematic view of the portion a in fig. 5.
FIG. 7 is a schematic cross-sectional view of the template blade attachment locking device of the present invention.
Fig. 8 is an enlarged schematic view of the portion B in fig. 7.
Marked in the figure as:
01-a template block; 02-fixing the pin hinge shaft; 03-a movable pin hinge shaft; 04-a power cylinder; 1-template blades; 2-connecting an oil cylinder; 3-taper pins; 4-a spring; 5-a pin shaft; 6-limiting blocks; 7-connecting plates; 8-rectangular limit clamping grooves; 9-a monaural board; 10-binaural panels; 11-a tapered hole; 12-skeleton; 13-spring shaft; 14-a baffle; 15-knuckle bearing.
Detailed Description
An embodiment of a formwork for casting bridge pier according to the present invention will be further described with reference to fig. 2 to 8.
A template for pouring bridge pier column comprises cylindrical or other shape template single sections (the upper and lower ends of the template single sections are provided with connecting holes, unlimited connection extension can be carried out in the axial direction), the connection between the template blades 1 is hinged by adopting taper pins 3 pushed by connecting cylinders 2 of a template blade locking device, the cylinder body end and the piston rod end of each connecting cylinder 2 respectively push one taper pin 3, each taper pin 3 is matched with a single lug plate 9 and a double lug plate 10 on a group of adjacent template blades 1 respectively, and the two template blades 1 are tightly tapered under the thrust of the connecting cylinders 2, so that the effect of locking the adjacent two template blades 1 is achieved. According to the length of the template blade 1, two or more groups of connecting oil cylinders 2 can be arranged on the axis of each connecting position so as to meet the requirement of sealing the template blade 1.
The taper pin 3 is connected with the connecting oil cylinder 2 by using the pin shaft 5, the monaural plate 9 and the binaural plate 10 are provided with taper holes 11 for being matched with the taper pin 3, the template blade 1 is provided with a framework 12 for enhancing the rigidity of the template blade, and the framework 12 can be made of channel steel.
The connecting place of the template blades 1 is axially provided with connecting plates 7, a spring assembly is clamped between the connecting plates 7 of the template blades 1, the spring assembly comprises a spring 4 and a spring shaft 13 penetrating through the spring 4, and the spring shaft 13 is arranged between the connecting plates 7 of two adjacent template blades 1 through nuts. When the connecting oil cylinder 2 contracts and pulls the taper pin 3, the monaural plate 9 and the binaural plate 10 to generate gaps, the springs 4 push away the two adjacent template blades 1 originally connected with each other, namely, gaps are generated between the two adjacent template blades 1 and between the template blades 1 and the cement column of the bridge pier to be poured, so that the template blades 1 can slide up and down along the cement column.
The joints of the two mutually connected template blades 1 in the axial direction are rotatably connected by adopting taper pins 3: when the connecting oil cylinder 2 contracts and drives the taper pins 3 to deviate from the taper holes 11, gaps are formed among each taper pin 3, the single-lug plate 9 and the double-lug plate 10, so that the template blades 1 can rotate around the taper pins 3, and gaps are formed among the template blades 1;
the expansion and closing of the template blades 1 can be controlled through the remote hydraulic control of the connecting oil cylinder 2, namely, the connecting oil cylinder 2 pushes the taper pin 3 to pull the corresponding adjacent connected single-lug plates 9 and double-lug plates 10, so that the two adjacent template blades 1 are pulled together to achieve the state of sealing cement paste of the pier to be poured, and the locking of the template blades 1 is realized. When the bridge pier of the corresponding section is poured, the template blade 1 needs to be loosened, and when the template blade 1 is separated from the bridge pier to be poured, namely, the corresponding taper pin 3 is pulled by the connecting oil cylinder 2 to be separated from the corresponding taper hole 11 (generally, the taper pin is not completely separated from the taper hole 11, and generally, the taper pin is loosened until the corresponding adjacent template blade 1 has enough clearance under the action of the spring assembly, so that the bridge pier can flexibly move along the axial direction of the bridge pier), the adjacent template blade 1 is spread out of the clearance under the action of the spring 4 of the spring assembly, and the expansion of the template blade 1 is realized. Thereby achieving the purpose of remotely controlling the opening and closing of the template blade 1.
On the connecting axis of the template blade 1, corresponding double single ear plates 9 and double ear plates 10 can be arranged, the cylinder end and the piston rod end of each connecting cylinder 2 are respectively connected with taper pins 3 by pin shafts 5, each taper pin 3 is used for controlling the locking or unlocking of one group of single ear plates 9 and double ear plates 10, the taper tightening force of the taper pins 3 at the two ends of each connecting cylinder 2 to the taper holes 11 is definitely equal according to the relation between acting force and reacting force, so that the invention can realize that two adjacent groups of matched single ear plates 9 and double ear plates 10 can bear equal taper tightening force. As long as the taper pin 3 is similarly fitted to the taper hole 11.
A plurality of spring assemblies can be arranged on each connecting axis of the template blade 1 and used for expanding the template blade 1, when the connecting oil cylinder 2 contracts and drives the taper pin 3 to deviate from the taper hole 11, gaps appear between the taper pin 3 and the single-lug plate 9 and between the taper pin 3 and the double-lug plate 10, at the moment, the springs 4 of the spring assemblies push two adjacently connected template blades 1 to expand and separate from the surface of a cement pier to be poured, and the springs 4 elastically stretch and retract along the axis of the spring shaft 13.
The taper of the taper pin 3 and the taper hole 11 in this embodiment is less than or equal to twenty degrees. When the connecting oil cylinder 2 pushes the taper pin 3 to tighten the template blades 1, even if the corresponding connecting oil cylinder 2 loses hydraulic power at the moment, the taper of the taper pin 3 and the taper hole 11 is small, so that self-locking between adjacent template blades 1 can be realized, and the phenomenon of opening gaps between the template blades 1 can not occur due to the loss of hydraulic power.
The connecting oil cylinder 2 is provided with a bar-shaped limiting block 6, a rectangular limiting groove 8 is formed in the corresponding position of the connecting plate 7, the connecting plate 7 is welded on the template blade 1, the bar-shaped limiting block 6 and the rectangular limiting groove are used for limiting the degree of freedom of the corresponding connecting oil cylinder 2, the connecting oil cylinder 2 cannot rotate randomly, and the connecting oil cylinder 2 can do telescopic motion in the axial direction of the joint of the template lug 1 as far as possible.
A baffle 14 is provided at the tip of the taper pin 3, the baffle 14 being used to limit the axial displacement distance of the taper pin 3, preventing the taper pin 3 from being completely removed from the tapered hole 11. The baffle 14 is arranged, so that the taper pin 3 is driven by the connecting oil cylinder 2 to accurately insert into the corresponding taper hole 11 for stretching movement next time.
The invention adopts a plurality of sets of template blade connecting and locking devices to carry out the connection locking or loosening between the template blades 1 and the template blades 1. The independent connecting oil cylinders 2 are adopted among the taper pins 3 to drive, so that the problems that the gap between the template and a cement column is small after the template is opened due to the adoption of a single taper pin shaft and the template is difficult to rotate around a taper pin-free shaft after deformation are avoided, and the template is flexible to construct and high in efficiency when the template is adopted for construction. The problem that the template blades are blocked when the template is required to be separated is avoided. In addition, each locking junction adopts independent taper pin 3 to lock, has avoided a long taper pin, when locking through different locking nodes, if there is machining error, then can cause local node template locking not tight, causes the problem of leakage. According to the invention, the taper pins 3 are adopted to synchronously lock the template connection points independently, so that the template blades 1 are tightly combined, and slurry leakage is avoided in the construction process. The plurality of independent taper pins 3 are adopted for locking, so that compared with a long taper pin shaft, the requirement on machining precision is reduced, and the machining cost is lower than that of the whole long taper pin.
Taper pins 3 are respectively connected to the cylinder body end and the piston rod end of the connecting cylinder 2, and the taper pins 3 at the two ends are driven by the connecting cylinder 2 to drive lugs (corresponding to the monaural plate 9 and the binaural plate 10 in the embodiment; namely, the lugs are the collective name of the monaural plate 9 and the binaural plate 10) on the template blades 1 to abut against each other under the pushing of acting force and reacting force, so that adjacent template blades 1 are driven to be attached and locked. The conical tightening force of the conical pins 3 connected with the two ends of the oil cylinder 2 is the same, the stress of the lug plates is even, and the sealing effect is good.
When the connecting oil cylinder 2 is retracted and the taper pin 3 is retracted, the spring assembly is adopted to push the connecting plate 7 between two adjacent template blades 1, so that the gap between the template blades 1 is increased. The whole template is easy to flexibly move and convenient and quick to construct, and the whole template is beneficial to being separated from the bridge pier to be constructed. The spring 4 of the spring assembly may be a compression spring or other conventional spring element like a compression spring.
A baffle 14 is arranged at the tip of each taper pin 3 for limiting the axial moving distance of the taper pin 3, preventing the taper pin 3 from completely disengaging from the taper hole 11 formed by the single ear plate 9 and the double ear plate 10, and facilitating the locking alignment of the taper pin 3 to the taper hole 11 again under the driving of the connecting oil cylinder 2. The situation that the taper pin 3 cannot accurately align with the taper hole 11 when the taper hole 11 needs to be locked again in case of complete detachment is avoided.
By installing the bar-shaped limiting block 6 on the connecting oil cylinder 2, the limiting block 6 slides in the rectangular limiting groove 8 of the connecting plate 7, so that the limiting and guiding functions of the connecting oil cylinder 2 are realized. The connecting oil cylinder 2 and the taper pin 3 can only perform telescopic movement in the axial direction, and deflection is reduced as much as possible. The template blades 1 can be locked or unlocked more freely and flexibly.
The taper pin 3 and the connecting oil cylinder 2 are connected by adopting the cooperation of the joint bearing 15 and the pin shaft 5, so that the taper pin 3 and the connecting oil cylinder 2 are more flexibly matched, and the situation that the taper pin is dead in the top and cannot be driven due to the influence of machining errors or other factors in site construction is avoided. It is also advantageous that the template blade 1 can be flexibly rotated around the corresponding taper pin 3.
The taper of the taper pin 3 is less than or equal to twenty degrees, and the taper of the taper hole 11 of the corresponding taper pin 3 is also less than or equal to twenty degrees. The taper pin 3 with the taper is matched with the taper hole 11, so that the self-locking of the template blades 1 can be realized, and once the template blades 1 are locked, the template blades 1 can be self-locked even if the hydraulic power of the connecting oil cylinder 2 is lost under certain conditions, and slurry leakage in construction is avoided.
The upper end and the lower end of the template blade 1 can be also provided with outwards turned connecting sheets, and the connecting sheets are provided with connecting bolt holes, so that the template formed by the template blades can be extended in the axial direction without limitation.
The present embodiment uses a three-leaf taper pin hinged automated template, but the present invention is not limited to three-leaf templates, which may be two-leaf, four-leaf, or even more-leaf templates. The embodiment is described based on a cylindrical cement pier column, but the scheme of the invention can also be used for the construction of square or elliptic cement pier columns.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A template for pouring bridge mound post, its characterized in that: the template blade connecting and locking device comprises more than two template blades and a plurality of template blade connecting and locking devices used for connecting the template blades; the connecting part of the template blade is provided with an ear piece which is provided with a conical hole; the template blade connecting and locking device comprises a connecting oil cylinder and a taper pin connected with the connecting oil cylinder; the taper pin can be inserted into or separated from the taper hole of the lug plate corresponding to the joint between the adjacent template blades under the drive of the connecting oil cylinder, and the adjacent template blades are locked or unlocked through the cooperation of the taper pin and the taper hole of the lug plate.
2. A form for casting bridge pier according to claim 1, wherein: the cylinder body end of the connecting cylinder is connected with a taper pin, and the piston rod end of the connecting cylinder is also connected with a taper pin; the connecting oil cylinder stretches and contracts to drive the taper pin at the cylinder body end and the taper pin at the piston end respectively, and the taper pin is inserted into or separated from the taper hole of the lug at the joint between the adjacent template blades, and the adjacent template blades are locked or unlocked through the cooperation of the taper pin and the taper hole of the lug.
3. A form for casting bridge pier according to claim 1, wherein: the connecting part of the template blade is also provided with an outwards turned connecting plate; a spring component is arranged between the adjacent template blades and the connecting plates of the template blades; the spring assembly comprises a spring shaft and a spring sleeved on the spring shaft; the spring shaft is fixed between the adjacent template blade and the connecting plate of the template blade; when the connecting cylinder drives the taper pin to be separated from the taper hole of the lug plate corresponding to the joint between the adjacent template blades, the spring pushes the connecting plate of the adjacent template blades and the template blades to loosen the adjacent template blades which are connected with each other.
4. A form for casting bridge pier according to claim 1, wherein: the tip of the taper pin is provided with a baffle plate for limiting the axial displacement distance of the taper pin.
5. A form for casting bridge pier according to claim 3, wherein: the connecting oil cylinder is provided with a limiting block, and a rectangular limiting groove for guiding is formed in a position corresponding to the connecting plate; and in the telescopic movement process of the connecting oil cylinder, the limiting block of the connecting oil cylinder slides in a guiding way along the rectangular limiting groove on the corresponding connecting plate.
6. A form for casting bridge pier according to claim 1, wherein: the taper pin is connected to the connecting oil cylinder through a pin shaft.
7. A form for casting bridge pier according to claim 6, wherein: a joint bearing is arranged at the joint of the connecting oil cylinder and the taper pin; and the pin shaft penetrates through the knuckle bearing to connect the taper pin to the connecting oil cylinder.
8. A form for casting bridge pier according to claim 1, wherein: the taper of the taper pin is less than or equal to twenty degrees, and the taper of the taper hole is less than or equal to twenty degrees.
9. A form for casting bridge pier according to claim 1, wherein: and a framework for enhancing the rigidity of the template blade is arranged on the template blade.
10. A form for casting bridge pier according to claim 1, wherein: the template blades are arc-shaped; and the templates for pouring bridge pier columns are connected by three-leaf arc-shaped template blades to form a cylindrical template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683660.0A CN116356690A (en) | 2021-12-28 | 2021-12-28 | Template for pouring bridge pier column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683660.0A CN116356690A (en) | 2021-12-28 | 2021-12-28 | Template for pouring bridge pier column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116356690A true CN116356690A (en) | 2023-06-30 |
Family
ID=86909660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111683660.0A Pending CN116356690A (en) | 2021-12-28 | 2021-12-28 | Template for pouring bridge pier column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116356690A (en) |
-
2021
- 2021-12-28 CN CN202111683660.0A patent/CN116356690A/en active Pending
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