Mounting device capable of achieving all-dimensional accurate adjustment of curved surface special-shaped structure formwork and construction method

Abstract

The invention relates to the technical field of bridge engineering construction equipment, in particular to a curved surface special-shaped structure formwork installation device capable of being accurately adjusted in all directions and a construction method.The curved surface special-shaped structure formwork installation device comprises a supporting and adjusting device used for adjusting a climbing frame platform to be in a horizontal state; the supporting adjusting device comprises two vertical fixing rods, a climbing frame main cross beam hinged to the tops of the two vertical fixing rods respectively and an inclined strut adjusting rod arranged in an inclined mode, one end of the inclined strut adjusting rod is hinged to the top of one of the two vertical fixing rods, and the other end of the inclined strut adjusting rod is hinged to the bottom of the other vertical fixing rod. When the hydraulic creeping formwork system climbs or descends along the track, the hydraulic creeping formwork system drives the supporting and adjusting device to climb or descend through the vertical fixing rod at the same time. The supporting and adjusting device forms two stable triangular structures, the overall stability of the climbing frame is ensured, operation is easy, and when the hydraulic climbing formwork system conducts climbing construction on special-shaped bridge towers and pier column sections, the climbing frame is adjusted to be horizontal in time, and the construction environment on the climbing frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering construction equipment, in particular to a template installation device capable of accurately adjusting a curved surface special-shaped structure in all directions and a construction method. BACKGROUND

[0002] Bridge engineering involves the design, construction, maintenance and management of bridges. Nowadays, high-pier and high-tower construction has become a common project in large-scale bridge construction. Compared with traditional support construction, the widely used hydraulic climbing formwork is safer, faster in construction speed, requires less labor, and can be reused to save costs. With these advantages, the hydraulic climbing formwork has been widely used in high-pier and high-tower engineering of bridges. With the pursuit of aesthetics, more and more landscape bridges are being built, among which the most diverse are special-shaped cable-stayed bridges. Through the unique structural form and stress characteristics of the bridge, different visual effects and structural properties are exhibited, making the traditional hydraulic climbing formwork gradually unable to meet the construction of special-shaped piers. Diversified formworks have become a problem in the construction of piers, and have brought many problems to the application of the hydraulic climbing formwork system.

[0003] The main structure of the existing special-shaped cable-stayed bridge tower is curved and inclined. Therefore, before the bridge is completed, uneven stress may cause insufficient structural bearing capacity. Therefore, the traditional special-shaped structure construction process relies on support construction, which can better ensure construction safety, but the erection of the support takes a long time and is costly. In addition, the traditional hydraulic climbing formwork system can only meet the construction of linear high-pier and high-tower, and cannot adapt to curved and curved special-shaped bridge towers. During the climbing formwork construction process of the curved and curved bridge towers, the climbing frame may tilt with the overall structure of the bridge tower, making the construction difficult.

[0004] Therefore, it is an urgent problem to be solved to support and adjust the hydraulic climbing formwork system so that it can adapt to various types of bridge construction. SUMMARY

[0005] The present application aims to provide a template installation device capable of accurately adjusting a curved surface special-shaped structure in all directions to solve the problem that the hydraulic climbing formwork system needs to adapt to different structural characteristics and is difficult to adjust during the construction of the current bridge special-shaped design.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A template installation device capable of accurately adjusting a curved surface special-shaped structure in all directions, comprising a support adjusting device, which is used for adjusting a climbing frame platform to a horizontal state; the support adjusting device comprises two vertical fixed rods, a climbing frame main cross beam hingedly connected to the top of the two vertical fixed rods, and an inclined brace adjusting rod arranged in an inclined manner; one end of the inclined brace adjusting rod is hingedly connected to the top of one of the two vertical fixed rods, and the other end of the inclined brace adjusting rod is hingedly connected to the bottom of the other of the two vertical fixed rods; the vertical fixed rods are rigidly connected to the track of a hydraulic climbing formwork system; when the hydraulic climbing formwork system climbs or descends along the track, the support adjusting device is simultaneously driven to climb or descend by the vertical fixed rods.

[0007] Preferably, the inclined brace adjusting rod comprises a first inclined brace adjusting rod, a second inclined brace adjusting rod, a hollow twist rod, and a twist handle arranged on the hollow twist rod; the first inclined brace adjusting rod and the second inclined brace adjusting rod are both provided with external threads; the hollow twist rod is provided with internal threads and is arranged in matching with the external threads of the first inclined brace adjusting rod and the second inclined brace adjusting rod; and the hollow twist rod is further provided with the twist handle.

[0008] Preferably, the two vertical fixed rods are a first vertical fixed rod and a second vertical fixed rod; the second vertical fixed rod is connected to an outer formwork and is simultaneously rigidly connected to the track of the hydraulic climbing formwork system; one end of the first inclined brace adjusting rod is connected to the upper end of the first vertical fixed rod by a peg; one end of the second inclined brace adjusting rod is connected to the bottom of the second vertical fixed rod by a peg; and the two ends of the climbing frame main cross beam are connected to the upper ends of the first vertical fixed rod and the second vertical fixed rod by pegs.

[0009] Preferably, the device further comprises a guide support base and a slide rail arranged on the guide support base; a cross rod is further connected between the first vertical fixed rod and the second vertical fixed rod; the two ends of the cross rod are connected to the bottom ends of the first vertical fixed rod and the second vertical fixed rod by pegs; the bottom of each of the first vertical fixed rod and the second vertical fixed rod is further connected to a support wheel; the support wheel is arranged on the slide rail, and the support wheel supports the first vertical fixed rod and the second vertical fixed rod to move back and forth.

[0010] Preferably, the guide support base is composed of two columnar metal rods and a connecting plate fixedly connected between the two columnar metal rods; the support wheel is supported on the slide rail formed by the columnar metal rods; the connecting plate is arranged at each end of the two columnar metal rods; the slide rail is further provided with an elongated through hole; the connection seat is arranged at the connection position of each of the first vertical fixed rod and the second vertical fixed rod and the cross rod; and a limiting guide rod, which can be arranged in the elongated through hole, is further arranged on the connection seat.

[0011] Preferably, the second vertical fixing rod is fixed with a pull rod connecting sleeve on the side, and the second vertical fixing rod is connected with the outer formwork through the pull rod connecting sleeve, so that the outer formwork can rotate with the second vertical fixing rod.

[0012] The application also provides a construction method of the installation device for the full-range accurate adjustment of the curved surface special-shaped structure formwork. When the hydraulic climbing formwork system climbs to the construction position, the outer formwork is first fixed on the vertical fixing rod on the climbing frame platform by using the connecting sleeve, and then the up-down inclination of the outer formwork is adjusted by using the inclined bracing adjusting rod. The distance between the outer formwork and the concrete can be adjusted by moving the support adjusting device forward and backward through the sliding rail, and the left-right inclination of the outer formwork can be adjusted by using the support adjusting device. When the hydraulic climbing formwork system climbs along the special-shaped curved surface, the vertical fixing rod will incline along the curved surface. When the climbing frame platform inclines inward, the inclined bracing rod can be retracted to adjust the upper climbing frame platform to be horizontal. When the climbing frame platform inclines outward, the inclined bracing rod can be extended to adjust the upper climbing frame platform to be horizontal. When the inclination angle of the climbing frame platform is too large and the inclined bracing rod cannot adjust the inclination angle to be horizontal, the pin hole connected between the main beam of the climbing frame platform and the inclined bracing rod on the vertical fixing rod can be replaced, and the inclined bracing rod can be appropriately extended or retracted to adjust the climbing frame platform to be horizontal.

[0013] Further, when the outer formwork is positioned, the straight surface section and the curved surface section of the inner formwork are connected and fixed with the outer formwork by using the pull rod. The short straight surface section between the straight surface section and the curved surface section of the inner formwork is hinged with the fixed inner formwork by using the bolt, so that the short straight surface section forms a flap plate which can be flipped out from the back of the fixed formwork during use. After the concrete is poured and the formwork is removed, the short straight surface section can be collected back to the fixed formwork. For the inner formwork of different sizes required by the upper section, the middle section and the lower section of the tower column, the bolt can be removed and replaced with the short straight surface section of the corresponding size to adapt to the formwork construction of the tower column of different sections.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] 1. The vertical fixing rod, the inclined bracing adjusting rod, the main beam of the climbing frame and the cross bar in the support adjusting device form two stable triangular structures. According to the stability principle of the triangle, the stability of the whole climbing frame is ensured. The device is simple to operate and can adjust the climbing frame to be horizontal in time during the climbing construction of the hydraulic climbing formwork system on the special-shaped bridge tower and the pier column section, and the construction environment on the climbing frame is improved.

[0016] 2. The hydraulic climbing formwork full-range adjusting support device is rotatably connected with the formwork through the formwork connecting frame, is supported by the inclined bracing with adjustable length, can adjust the up-down inclination angle of the formwork, and can make the formwork connecting frame displace in different degrees, so that the formwork can also be adjusted in the left-right inclination. The formwork can be adjusted in a larger range during the construction of the special-shaped bridge tower, and the construction efficiency and safety are greatly improved, so that the device has good technical advantages.

[0017] 3、The full-range accurate adjustment curved surface special-shaped structure template mounting device can adjust the support angle through the insertion pin fixing of the vertical fixed rod below each section of the climbing frame platform, so that the climbing frame platform is leveled, and the vertical support structure is adjustably connected through the cooperation of the threaded inclined support rod and the torsion rod, the construction efficiency of the special-shaped cable-stayed bridge is improved, the torsion handle is designed on the torsion rod, the manual rotation of the torsion rod can be handled, the rotation positioning mode is simple, and the efficiency of the adjustment work is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the full-range accurate adjustment curved surface special-shaped structure template mounting device.

[0019] Figure 2 It is an inclined support adjusting rod structure schematic view of the full-range accurate adjustment curved surface special-shaped structure template mounting device.

[0020] Figure 3 It is a support adjusting device adjusting structure schematic view of the full-range accurate adjustment curved surface special-shaped structure template mounting device.

[0021] Figure 4 It is an inner template structure schematic view of the full-range accurate adjustment curved surface special-shaped structure template.

[0022] Figure 5 It is an inner template structure schematic view of the full-range accurate adjustment curved surface special-shaped structure template.

[0023] In the figure: 1, climbing frame main cross beam; 101, first inclined support adjusting rod; 102, second inclined support adjusting rod; 103, hollow torsion rod; 104, torsion handle; 201, first vertical fixed rod; 202, second vertical fixed rod; 3, outer template; 4, guide support seat; 5, slide rail; 6, cross bar; 7, insertion pin; 8, support wheel; 9, connecting plate; 10, elongated through hole; 11, connecting seat; 12, limiting guide rod; 13, pull rod connecting sleeve; 14, concrete; 15, pull rod; 16, straight surface section; 17, curved surface section; 18, short side straight surface section; 19, bolt; 20, flap; 21, sleeve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Referring to Figures 1-4 The present application provides a technical solution:

[0026] The present application provides a technical solution: a full-precision adjustment of curved surface profile template installation device, comprising a support adjusting device, the support adjusting device is used for adjusting the climbing frame platform (not shown) to the horizontal state; the support adjusting device comprises two vertical fixed rods, the climbing frame main beam 1 is respectively hinged with the top of the two vertical fixed rods, and the inclined support adjusting rod is arranged obliquely; the climbing frame platform is supported on the climbing frame main beam 1.

[0027] One end of the inclined support adjusting rod is hinged with the top of one of the two vertical fixed rods, the other end of the inclined support adjusting rod is hinged with the bottom of the other of the two vertical fixed rods, the vertical fixed rod and the track (not shown) of the hydraulic climbing formwork system are rigidly connected, when the hydraulic climbing formwork system climbs or descends along the track, the support adjusting device is driven to climb or descend through the vertical fixed rod, and the climbing of the support adjusting device can drive the climbing of the climbing frame platform.

[0028] The preferred scheme is adopted, the inclined support adjusting rod comprises a first inclined support adjusting rod 101, a second inclined support adjusting rod 102, a hollow twist rod 103 and a twist handle 104 arranged on the hollow twist rod 103; the first inclined support adjusting rod 101 and the second inclined support adjusting rod 102 are provided with external threads, the hollow twist rod 103 is provided with internal threads and is matched with the external threads of the first inclined support adjusting rod 101 and the second inclined support adjusting rod 102, the hollow twist rod 103 is further provided with the twist handle 104, in use, one end of the first inclined support adjusting rod and the second inclined support adjusting rod is twisted into the two ends of the hollow twist rod respectively, by rotating the twist handle, the first inclined support adjusting rod and the second inclined support adjusting rod can be twisted into or out of the hollow twist rod.

[0029] The preferred scheme adopted by the present application is that the two vertical fixed rods are respectively a first vertical fixed rod 201 and a second vertical fixed rod 202, the second vertical fixed rod 202 is connected with the outer formwork 3 and is rigidly connected with the track (not shown) of the hydraulic climbing formwork system at the same time, one end of the first inclined support adjusting rod 101 is connected to the upper end of the first vertical fixed rod 201 through a pin 7; one end of the second inclined support adjusting rod 102 is connected to the bottom of the second vertical fixed rod 202 through a pin; the two ends of the climbing frame main beam are connected to the upper ends of the first vertical fixed rod 201 and the second vertical fixed rod 202 through the pins 7 respectively, the structure that the climbing frame main beam 1 is hinged with the first vertical fixed rod 201 and the second vertical fixed rod 202, the first inclined support adjusting rod is hinged with the first vertical fixed rod, the second inclined support adjusting rod is hinged with the second vertical fixed rod, which facilitates the adjustment of the climbing frame platform to the horizontal position.

[0030] The application also comprises a guide support base 4 and a slide rail 5 arranged on the guide support base 4, a crossbar 6 is further connected between the first vertical fixed rod 201 and the second vertical fixed rod 202, both ends of the crossbar 6 are connected to the bottom ends of the first vertical fixed rod 201 and the second vertical fixed rod 202 through a bolt 7, so that the crossbar 6 is hinged with the first vertical fixed rod 201 and the second vertical fixed rod 202; the bottom of the first vertical fixed rod 201 and the second vertical fixed rod 202 is further connected with a support wheel 8 respectively, the support wheel 8 is arranged on the slide rail 5, and the support wheel 8 supports the front and back movement of the first vertical fixed rod 201 and the second vertical fixed rod 202, that is, the support adjusting device can move forward and backward, so as to adjust the distance between the outer formwork and the concrete, and the overall displacement of the outer formwork and the climbing frame platform is realized through the support of the support wheel, and the moving resistance is reduced.

[0031] The guide support base 4 is composed of two columnar metal rods and a connecting plate 9 fixedly connected between the two columnar metal rods, the support wheel is supported on the slide rail 5 formed by the columnar metal rods; the connecting plate is arranged at both ends of the two columnar metal rods respectively; the slide rail is further provided with an elongated through hole 10 respectively, the connecting seat 11 is arranged at the connection position of the first vertical fixed rod 201 and the second vertical fixed rod 202 respectively, the limiting guide rod 12 which can be arranged on the elongated through hole 10 is further arranged on the connecting seat 11, the limiting guide rod 12 is limited through the elongated through hole 10 and the moving distance is limited, the bottom of the first vertical fixed rod 201 and the second vertical fixed rod 202 is connected with two support wheels 8 respectively, so that the first vertical fixed rod and the second vertical fixed rod can be better supported, and the climbing frame platform is supported.

[0032] The second vertical fixed rod 202 is fixed with a pull rod connecting sleeve 13 on the side surface, the second vertical fixed rod is connected with the outer formwork 3 through the pull rod connecting sleeve 13, so that the outer formwork 3 can rotate with the second vertical fixed rod 202.

[0033] The application also provides a construction method of the installation device for the curved surface special-shaped structure template which can be accurately adjusted in all directions. When the hydraulic climbing formwork system (not shown) climbs to the construction position, the outer template 3 is first fixed on the vertical fixing rod on the climbing frame platform by using the pull rod connecting sleeve 13, and then the inclination of the outer template is adjusted by using the inclined bracing adjusting rod. The distance between the outer template and the concrete 14 can be adjusted by moving the support adjusting device forward and backward through the slide rail, and the left and right inclination of the outer template 3 can be adjusted by using the support adjusting device. When the hydraulic climbing formwork system climbs along the special-shaped curved surface, the first vertical fixing rod and the second vertical fixing rod will incline along with the curved surface. When the climbing frame platform inclines inward (towards the guide type curved surface), the inclined bracing adjusting rod is retracted to adjust the upper climbing frame platform to be horizontal. When the climbing frame platform inclines outward (towards the opposite direction of the guide type curved surface), the inclined bracing adjusting rod is elongated to adjust the upper climbing frame platform to be horizontal. When the inclination angle of the climbing frame platform is too large and the length of the inclined bracing adjusting rod cannot adjust the inclination angle to be flat, the plug hole of the inclined bracing adjusting rod connected to the vertical fixing rod on the main beam of the climbing frame platform can be replaced, and the inclined bracing adjusting rod can be appropriately elongated or retracted according to the requirement to adjust the climbing frame platform to be flat, or the vertical fixing rod, the main beam of the climbing frame platform and the inclined bracing adjusting rod can be replaced according to the requirement.

[0034] When the outer template is positioned, the straight face section 16 and the curved section 17 of the inner template are connected, installed and fixed to the outer template by using the pull rod 15 (in order to adapt to the special-shaped curved structure, the inner template needs to have the straight face section and the curved section). The short straight face section 18 between the straight face section and the curved section of the inner template is hinged to the fixed inner template (which can be the straight face section or the curved section) by using the bolt 19. The flap and the corresponding sleeve 21 are arranged on the flap 20. The flap and the corresponding sleeve 21 are also arranged on the straight face section or the curved section hinged to the short straight face section 18. The bolt 19 is arranged in the sleeve on the short straight face section 18 and the sleeve on the straight face section or the curved section, so as to hinge the short straight face section to the straight face section or the curved section, form a flap, and be flipped out from the back of the fixed template during use. After the pouring of the concrete is completed, the short straight face section can be removed and recovered to the fixed template. According to the different sizes of the inner templates required by the upper section, the middle section and the lower section of the tower column, the bolt can be removed and replaced by the corresponding size of the short straight face section, so as to adapt to the template construction of the tower column of different sections.

[0035] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features within the spirit and principles of the application. Any modification, equivalent replacement, improvement, etc. made within the protection scope of the application shall be included in the protection scope of the application.

Claims

1. A device for installing curved and special-shaped structure templates that can be precisely adjusted in all directions, characterized by: The invention comprises a support adjustment device, wherein the support adjustment device is used to adjust the climbing frame platform to a horizontal state; the support adjustment device comprises two vertical fixing rods, a climbing frame main beam (1) respectively hinged to the top of the two vertical fixing rods, and an inclined diagonal support adjustment rod, wherein one end of the diagonal support adjustment rod is hinged to the top of one of the two vertical fixing rods, and the other end of the diagonal support adjustment rod is hinged to the bottom of the other of the two vertical fixing rods; the vertical fixing rods are rigidly connected to the track of the hydraulic climbing formwork system; when the hydraulic climbing formwork system climbs or descends along the track, it simultaneously drives the support adjustment device to climb or descend through the vertical fixing rods.

2. The device for installing a curved surface special-shaped structure template capable of being precisely adjusted in all directions according to claim 1, characterized in that: The diagonal brace adjustment rod comprises a first diagonal brace adjustment rod (101), a second diagonal brace adjustment rod (102), a hollow torsion rod (103) and a torsion handle (104) arranged on the hollow torsion rod (103); the first diagonal brace adjustment rod (101) and the second diagonal brace adjustment rod (102) are both provided with external threads, the hollow torsion rod (103) is provided with internal threads and matched with the external threads of the first diagonal brace adjustment rod (101) and the second diagonal brace adjustment rod (102), and the hollow torsion rod (103) is also provided with a torsion handle (104).

3. The device for installing a curved surface special-shaped structure template capable of being precisely adjusted in all directions according to claim 2, characterized in that: The two vertical fixing rods are respectively a first vertical fixing rod (201) and a second vertical fixing rod (202); the second vertical fixing rod (202) is connected to the outer formwork (3) and is rigidly connected to the track of the hydraulic climbing formwork system; one end of the first diagonal bracing adjustment rod (101) is connected to the upper end of the first vertical fixing rod (201) through a latch; one end of the second diagonal bracing adjustment rod (102) is connected to the bottom of the second vertical fixing rod (202) through a latch; and both ends of the main crossbeam of the climbing frame are respectively connected to the upper ends of the first vertical fixing rod (201) and the second vertical fixing rod (202) through a latch.

4. The device for installing a curved special-shaped structure template capable of being precisely adjusted in all directions according to claim 3, characterized in that: The invention also includes a guide support seat (4) and a slide rail (5) arranged on the guide support seat (4); a cross bar (6) is connected between the first vertical fixed rod (201) and the second vertical fixed rod (202); both ends of the cross bar (6) are connected to the bottom ends of the first vertical fixed rod (201) and the second vertical fixed rod (202) through a latch (7); and support wheels (8) are respectively connected to the bottom ends of the first vertical fixed rod (201) and the second vertical fixed rod (202); the support wheels (8) are arranged on the slide rail (5), and the support wheels (8) support the first vertical fixed rod (201) and the second vertical fixed rod (202) so that they can move forward and backward.

5. The device for installing a curved surface special-shaped structure template capable of being precisely adjusted in all directions according to claim 4, characterized in that: The guide support seat (4) is composed of two columnar metal rods and a connecting plate (9) fixedly connected between the two columnar metal rods. The support wheel is supported on a slide rail (5) formed by the columnar metal rods. The connecting plates (9) are respectively arranged at both ends of the two columnar metal rods. The slide rails (5) are also respectively provided with elongated through holes (10). The first vertical fixed rod (201) and the second vertical fixed rod (202) are respectively provided with connecting seats (11) at the connection points with the cross bar (6). The connecting seats (11) are also provided with a limiting guide rod (12) that can be inserted into the elongated through holes.

6. The device for installing a curved special-shaped structure template capable of being precisely adjusted in all directions according to claim 5, characterized in that: A tie rod connecting sleeve (13) is fixed on the side of the second vertical fixing rod (202), and the second vertical fixing rod (202) is tie-rod-connected to the outer template (3) through the tie rod connecting sleeve (13), ensuring that the outer template (3) can rotate along with the second vertical fixing rod (202).

7. A construction method for a device for installing a curved surface special-shaped structure template capable of full-range and precise adjustment according to any one of claims 1 to 6, characterized in that: During formwork construction, after the hydraulic climbing formwork system climbs to the construction site, the outer formwork (3) is first fixed to the vertical fixing rod on the climbing frame platform using the connecting sleeve (13), and then the upper and lower inclinations of the outer formwork (3) are adjusted using the diagonal support adjustment rod; the distance between the outer formwork (3) and the concrete (14) can be adjusted by driving the support adjustment device forward and backward by the slide rail, and the left and right inclinations of the outer formwork (3) can be adjusted using the support adjustment device; when the hydraulic climbing formwork system climbs along the special-shaped curved surface, the vertical fixing rod will tilt along with the curved surface, and when the climbing frame platform tilts inward, the diagonal support rod can be retracted to adjust the upper climbing frame platform to a horizontal level; when the climbing frame platform tilts outward, the diagonal support rod can be extended to adjust the upper climbing frame platform to a horizontal level; when the climbing frame platform tilts too much and the diagonal support rod can no longer level the tilt angle, the main beam of the climbing frame platform and the pin holes for connecting the diagonal support rod on the vertical fixing rod can be replaced, and then the diagonal support rod can be appropriately extended or retracted as needed to level the climbing frame platform.

8. The construction method of the installation device for a curved surface special-shaped structure template capable of being adjusted in all directions and accurately according to claim 7 is characterized in that: When the outer template (3) is positioned, the straight surface section (16) and the curved surface section (17) of the inner template are connected and fixed by a tie rod (15) to the outer template (3); the inner template of the short side straight surface section (18) between the inner template straight surface section (16) and the curved surface section (17) is hinged to the fixed inner template by bolts (19), so that the short side straight surface section forms a flip cover plate, which can be flipped out from behind the fixed template when in use. After the concrete pouring is completed, the template can be removed and the short side template can be retracted behind the fixed template; for the inner templates of different sizes required for the upper, middle and lower sections of the tower column, the bolts can be removed and replaced with short side templates of corresponding sizes to adapt to the template construction of tower columns of different sections.

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