Template pull rod structure and template fixing device

Abstract

The utility model relates to the technical field of building construction, and discloses a template pull rod structure and a template fixing device. The formwork pull rod structure comprises a pull rod body, a connecting assembly, a limiting ring, a grout stop ring and a waterproof piece, the connecting assembly comprises a connecting sleeve and a connecting rod which are integrally formed, and the pull rod body is in threaded connection with the end, away from the connecting rod, of the connecting sleeve; the limiting ring sleeves the connecting sleeve, and the outer diameter of the limiting ring is larger than the diameter of a through hole in the template; the grout stopping ring sleeves the connecting sleeve and is in sealing fit with the template; the waterproof piece is wound at the joint of the connecting sleeve and the pull rod main body. The template fixing device comprises a fastener and a template pull rod structure, wherein the fastener is positioned on the outer side of the template and is movably arranged on the connecting rod along the axial direction of the connecting rod. The connecting assembly of the formwork pull rod structure and the formwork fixing device can be repeatedly used, the construction cost is reduced, the length, located on the outer side of the formwork, of the connecting assembly is guaranteed, concrete grout cannot flow out, and the quality of a concrete structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, especially relates to a formwork pull rod structure and formwork fixing device. BACKGROUND

[0002] The formwork pull rod is mainly used for connecting and fixing the building formwork on both sides of concrete, can bear the lateral pressure generated during concrete pouring, so as to ensure that the formwork remains stable during concrete pouring, and ensures the construction quality and safety.

[0003] The existing formwork pull rod mainly comprises a pull rod body, a joint pull rod and connecting pieces, wherein the joint pull rod is connected with the pull rod body through the connecting pieces, is used for feeding the pull rod body into the inner side of the formwork, and is separated from the pull rod body through the connecting pieces after concrete pouring is completed, and the joint pull rod is firmly connected with the formwork through a nut. However, during the installation of the formwork pull rod, the pull rod body is inserted into the inner side of the formwork, and the specific position of the pull rod body cannot be judged by the staff, so that the exposed length of the joint pull rod is different, the vibration generated during concrete pouring and vibration is easy to make the nut fall off the joint pull rod, thereby affecting the strength of the formwork fixing, not only safety accidents can occur, but also the quality of the poured concrete structure is affected. Moreover, when the joint pull rod is separated from the pull rod body, the connecting pieces are often left in the concrete due to the influence of the concrete resistance, so that the connecting pieces cannot be reused, and the use cost is increased. In addition, due to the influence of concrete vibration, a gap is formed between the concrete and the formwork, concrete slurry flows out of the gap, and the quality of the concrete structure is affected.

[0004] Therefore, a formwork pull rod structure and formwork fixing device are needed to solve the above problems. INVENTION CONTENTS

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a formwork pull rod structure and formwork fixing device, the connecting assembly can be reused, the construction cost is reduced, the length of the connecting assembly located on the outer side of the formwork is guaranteed, concrete slurry cannot flow out, and the quality of the concrete structure is ensured.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a formwork pull rod structure is provided, which comprises a pull rod body and further comprises:

[0008] A connecting assembly comprises an integrally formed connecting sleeve and a connecting rod, the pull rod body is located at one end of the connecting sleeve away from the connecting rod, and is threadedly connected with the connecting sleeve;

[0009] A limiting ring is sleeved on the connecting sleeve and is fixedly connected with the connecting sleeve, a through hole is arranged on the formwork, and the outer diameter of the limiting ring is greater than the diameter of the through hole.

[0010] The stop ring is sleeved on the connecting sleeve and can be sealingly matched with the formwork;

[0011] The waterproof member is wound at the connecting position of the connecting sleeve and the pull rod body.

[0012] Optionally, an inner thread is arranged on the inner hole wall of the connecting sleeve, and an outer thread is arranged on the pull rod body and threadedly matched with the inner thread.

[0013] Optionally, the distance from the inner thread to the limiting ring is greater than the sum of the thickness of the protective layer of the concrete structure and the thickness of the formwork.

[0014] Optionally, the formwork pull rod structure further comprises a jacking member, one end of the jacking member is fixedly connected with the stress reinforcement of the concrete structure, and the other end is abutted with the stop ring to jackingly fix the stop ring to the formwork.

[0015] Optionally, the side of the stop ring, which is away from the jacking member, can be adhesively connected with the inner side of the formwork.

[0016] Optionally, an outer inclined surface is arranged on the connecting end of the connecting sleeve and the pull rod body, and the outer inclined surface gradually moves away from the inner cavity of the connecting sleeve along the direction close to the connecting rod.

[0017] Optionally, the waterproof member is made of waterproof adhesive tape.

[0018] Optionally, the stop ring is an annular structure made of rubber.

[0019] In another aspect, a formwork fixing device is provided, which comprises a fastening member and the formwork pull rod structure, and the fastening member is located on the outer side of the formwork and movably arranged on the connecting rod along the axial direction of the connecting rod.

[0020] Optionally, a screw rod part is arranged on the end of the connecting rod, which is away from the connecting sleeve, and a threaded hole is arranged on the fastening member, the screw rod part is arranged in the threaded hole and is threadedly connected with the threaded hole.

[0021] Compared with the prior art, the formwork pull rod structure has the following beneficial effects:

[0022] The utility model provides a template pull rod structure and template fixing device, the outer diameter of limit ring is greater than the diameter of the perforation, so when the connecting sleeve gradually enters the inside of template through the perforation, limit ring cannot pass through the perforation, thereby limit the length of connecting sleeve entering the inside of template, make connecting rod can always be located the outside of template, guarantee the length of connecting assembly located the outside of template, make the fastener of template fixing device connected with connecting rod in the process of concrete vibrating and does not fall off from connecting rod, guarantee the strength of template fixed. Connecting sleeve is connected with pull rod main part threadedly, and its connecting place is wrapped by waterproof article, make the concrete slurry can not enter connecting sleeve, ensure that connecting sleeve can spin smoothly, separate with pull rod main part. When manufacturing connecting assembly, connecting rod and connecting sleeve are integrally formed, increase the strength of the connection between connecting rod and connecting sleeve, resist the resistance of concrete to it when taking out connecting assembly, make connecting assembly can be taken out from concrete structure, connecting assembly can be repeatedly used, reduce construction cost. The sealing cooperation of stop ring and template makes the concrete slurry not flow out from the perforation in the process of concrete vibrating, avoids the appearance of concrete structure to have the defect because of the leakage of slurry. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structural schematic diagram of the template pull rod structure provided for the embodiment;

[0024] Figure 2 The explosion drawing of the template fixing device provided for the embodiment;

[0025] Figure 3 The sectional view of the template pull rod structure provided for the embodiment;

[0026] Figure 4 The schematic diagram of the pull rod main body after separating from the connecting assembly of the template pull rod structure provided for the embodiment;

[0027] Figure 5 The explosion drawing of the pull rod main body and the connecting assembly of the template pull rod structure provided for the embodiment;

[0028] Figure 6 The sectional view of the template fixing device provided for the embodiment;

[0029] Figure 7 The structural schematic diagram of the I-beam and the outer channel steel after installation of the template fixing device provided for the embodiment;

[0030] Figure 8 The structural schematic diagram of the base plate and the fastener after installation of the template fixing device provided for the embodiment;

[0031] Figure 9 The schematic diagram of the stop ring installation of the template fixing device provided for the embodiment;

[0032] Figure 10 The sectional view of the template fixing device provided in the embodiment is shown in the figure.

[0033] Wherein:

[0034] 100, template; 200, concrete structure; 201, groove;

[0035] 1, template pull rod structure; 11, pull rod main body; 111, external thread; 12, connecting assembly; 121, connecting sleeve; 1211, internal thread; 1212, outer inclined surface; 122, connecting rod; 1221, screw part; 13, limiting ring; 14, grout stopping ring; 15, waterproof piece;

[0036] 2, fastener; 21, threaded hole;

[0037] 3, I-beam;

[0038] 4, outer channel steel;

[0039] 5, pad plate. DETAILED DESCRIPTION

[0040] It should be understood that, in the description of the utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0041] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "provision", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0042] The technical solutions of the utility model will be further described below in combination with the drawings and through specific embodiments.

[0043] Embodiment one

[0044] As Figures 1 to 10As shown, the embodiment provides a template tie rod structure 1, the connecting assembly 12 can be reused, the construction cost is reduced, and the length of the connecting assembly 12 located outside the template 100 is guaranteed, and the concrete slurry cannot flow out, thereby guaranteeing the quality of the concrete structure 200.

[0045] Referring to Figure 1 and Figure 2 The template tie rod structure 1 comprises a tie rod body 11, a connecting assembly 12, a limiting ring 13, a slurry stopping ring 14 and a waterproof member 15. The connecting assembly 12 comprises an integrally formed connecting sleeve 121 and a connecting rod 122. The tie rod body 11 is located at one end of the connecting sleeve 121 away from the connecting rod 122 and is threadedly connected with the connecting sleeve 121. The limiting ring 13 is sleeved on the connecting sleeve 121 and is fixedly connected with the connecting sleeve 121. The template 100 is provided with a through hole, and the outer diameter of the limiting ring 13 is greater than the diameter of the through hole. The slurry stopping ring 14 is sleeved on the connecting sleeve 121 and can be sealingly matched with the template 100. The waterproof member 15 is wound at the connecting position of the connecting sleeve 121 and the tie rod body 11.

[0046] The template tie rod structure 1 provided by the embodiment, the outer diameter of the limiting ring 13 is greater than the diameter of the through hole, so when the connecting sleeve 121 gradually enters the inside of the template 100 through the through hole, the limiting ring 13 cannot pass through the through hole, thereby limiting the length of the connecting sleeve 121 entering the inside of the template 100, so that the connecting rod 122 can always be located outside the template 100, the length of the connecting assembly 12 located outside the template 100 is guaranteed, so that the fastener 2 of the template fixing device connected with the connecting rod 122 cannot fall off from the connecting rod 122 during the concrete vibrating process, and the strength of the template 100 is guaranteed. The connecting sleeve 121 is threadedly connected with the tie rod body 11, and the connecting position thereof is wrapped by the waterproof member 15, so that the concrete slurry cannot enter the connecting sleeve 121, and the connecting sleeve 121 can be smoothly screwed to be separated from the tie rod body 11. The connecting rod 122 and the connecting sleeve 121 are integrally formed when the connecting assembly 12 is manufactured, the strength of the connection between the connecting rod 122 and the connecting sleeve 121 is increased, so as to resist the resistance of the concrete to the connecting assembly 12 when the connecting assembly 12 is taken out, so that the connecting assembly 12 can be taken out from the concrete structure 200, the connecting assembly 12 can be reused, and the construction cost is reduced. The slurry stopping ring 14 is sealingly matched with the template 100, so that the concrete slurry cannot flow out from the through hole during the concrete vibrating process, and defects of the appearance of the concrete structure 200 caused by slurry leakage are avoided.

[0047] Exemplarily, the connecting assembly 12 and the limiting ring 13 are both made of steel, and the limiting ring 13 is welded on the connecting sleeve 121. Specifically, the connecting assembly 12 and the limiting ring 13 are both made of 45# high-quality carbon structural steel.

[0048] In this embodiment, the waterproof component 15 is made of waterproof tape. The waterproof tape has excellent waterproof properties, effectively preventing the penetration of concrete slurry and avoiding its entry into the inner cavity of the connecting sleeve 121. The waterproof tape also has a certain degree of self-adhesion, allowing it to be applied directly to the connection between the connecting sleeve 121 and the tie rod body 11 without the need for additional adhesives or tools, making the operation convenient and quick. Furthermore, the waterproof tape is soft and malleable, enabling it to adapt to various irregularly shaped surfaces, ensuring a tight seal at the connection between the connecting sleeve 121 and the tie rod body 11.

[0049] Furthermore, the self-adhesiveness of the waterproof tape also results in a weaker connection strength between the waterproof component 15 and the connecting sleeve 121 and the pull rod body 11. Therefore, when separating the connecting sleeve 121 and the pull rod body 11, the operator only needs to tighten the connecting assembly 12 with a force greater than the adhesive force of the waterproof tape to separate the waterproof component 15 from the connecting sleeve 121, which facilitates the separation of the connecting assembly 12 from the pull rod body 11.

[0050] Furthermore, the inner side of the waterproof component 15 is coated with lubricant to facilitate the subsequent separation of the connecting sleeve 121 from the pull rod body 11. For example, grease is used as the lubricant.

[0051] In this embodiment, the grout-stopping ring 14 is a ring structure made of rubber. Rubber has excellent elasticity and plasticity, which makes it easy to fit the grout-stopping ring 14 onto the connecting sleeve 121. Rubber can also effectively reduce the gap between it and the inner side of the template 100, ensuring that the concrete grout will not flow out. Moreover, rubber has high wear resistance, can be used multiple times and is not easily damaged, thus extending the service life of the grout-stopping ring 14.

[0052] Furthermore, the grout-stopping ring 14 includes two layers of rubber rings to ensure a sealing effect.

[0053] For example, the diameter of the tie rod body 11 is 20 mm, and the inner diameter of the grout stop ring 14 is also 20 mm.

[0054] Optionally, participate Figure 2 The inner wall of the connecting sleeve 121 is provided with an internal thread 1211, and the pull rod body 11 is provided with an external thread 111 that is threadedly engaged with the internal thread 1211, so as to realize the threaded connection between the connecting sleeve 121 and the pull rod body 11.

[0055] In this embodiment, participants Figure 3 and Figure 4The distance D from the inner thread 1211 to the limiting ring 13 away from the one end of the pull rod body 11 is greater than the sum of the thickness of the protective layer of the concrete structure 200 and the thickness of the formwork 100, so as to ensure that the end of the one end of the pull rod body 11 connected with the connecting sleeve 121 is not located in the protective layer of the concrete structure 200, and the protective layer corresponding to the part of the concrete structure 200 is not too thin, so as to avoid that the stress reinforcement and hoop reinforcement of the concrete structure 200 are corroded, and the durability of the concrete structure 200 is affected.

[0056] Exemplarily, the length of the inner thread 1211 is 2.5 times of the diameter of the pull rod body 11, and after the connecting sleeve 121 is connected with the pull rod body 11, the outer thread 111 has at least 1-2 threads exposed outside the connecting sleeve 121, so as to facilitate the staff to determine that the connecting sleeve 121 is connected with the pull rod body 11 in place. Specifically, the pull rod body 11 is a steel bar with a diameter of 20 mm, the length of the outer thread 111 is 50 mm, and the length of the inner thread 1211 is 50 mm.

[0057] Optionally, the formwork pull rod structure 1 further comprises a tightening member, one end of the tightening member is fixedly connected with the stress reinforcement of the concrete structure 200, and the other end is abutted with the stop ring 14, so as to tightly top the stop ring 14 to the formwork 100. The setting of the tightening member can reduce the gap between the stop ring 14 and the formwork 100 on one hand, and ensure the stop effect of the stop ring 14; on the other hand, the tightening member can also prevent the stop ring 14 from moving on the connecting sleeve 121 in the direction away from the formwork 100, and further ensure the sealing effect between the stop ring 14 and the formwork 100.

[0058] Exemplarily, the tightening member adopts a steel bar head, one end of the tightening member is welded with the stress reinforcement of the concrete structure 200, and the other end is tightly topped to the stop ring 14.

[0059] In the embodiment, the side of the stop ring 14 away from the tightening member can be bonded with the inner side of the formwork 100, so as to ensure the connecting effect between the stop ring 14 and the inner side of the formwork 100, prevent the stop ring 14 from moving on the connecting sleeve 121 in the direction away from the formwork 100, and thus ensure the sealing effect between the stop ring 14 and the formwork 100.

[0060] Exemplarily, the stop ring 14 and the formwork 100 are bonded by glue.

[0061] Optionally, the participating Figure 4 and Figure 5The connecting sleeve 121 has an outer bevel 1212 at the end where it connects to the tie rod body 11. The outer bevel 1212 gradually moves away from the inner cavity of the connecting sleeve 121 in the direction close to the connecting rod 122. The outer bevel 1212 makes the cross-sectional dimension of the connecting sleeve 121 at the end close to the tie rod body 11 smaller than the cross-sectional dimension at the end far from the tie rod body 11. That is, the cross-sectional shape of the connecting sleeve 121 at the end where it connects to the tie rod body 11 is conical, which makes the connection between the connecting sleeve 121 and the tie rod body 11 tighter. Moreover, it also makes it easier to remove the connecting sleeve 121 from the concrete structure 200.

[0062] Example 2

[0063] like Figure 2 As shown, this embodiment provides a template fixing device, including a fastener 2 and a template tie rod structure 1 as described in Embodiment 1. The fastener 2 is located on the outside of the template 100 and is movably disposed on the connecting rod 122 along the axial direction of the connecting rod 122. By driving the fastener 2 to move along the axial direction of the connecting rod 122, the fastener 2 can gradually move to contact the outer surface of the template 100, thereby achieving the fixing of the template 100.

[0064] Specifically, see Figure 2 and Figure 6 The connecting rod 122 has a screw portion 1221 at the end away from the connecting sleeve 121. The fastener 2 has a threaded hole 21, through which the screw portion 1221 passes and is threadedly connected, allowing the fastener 2 to move axially along the connecting rod 122. The threaded connection also allows the fastener 2 to press firmly against the outer surface of the template 100, preventing movement after pressing and ensuring effective fixation of the template 100.

[0065] In this embodiment, the length of the connecting rod 122 is determined according to the design requirements for fixing the template 100. As long as the fastener 2 presses the template 100, there are at least 3 to 4 threads on the side of the screw part 1221 away from the fastener 2, so as to prevent the fastener 2 from coming off the screw part 1221 during concrete vibration.

[0066] For example, the connecting rod 122 is made of D20 type steel bar.

[0067] For example, see Figure 6 Fastener 2 is a nut. In this embodiment, fastener 2 is a U-shaped nut. U-shaped nuts can be tightened without the use of traditional wrenches or other tools, which improves the efficiency of fixing. Moreover, U-shaped nuts can provide a stable tightening force when fixing template 100, ensuring that template 100 will not loosen or deform during concrete pouring or other processes.

[0068] In this embodiment, see Figure 2 and Figure 6The template fixing device further comprises a plurality of H-beams 3 and a plurality of outer channel steels 4, the H-beams 3 extend in the vertical direction and abut against the outer side of the template 100, the outer channel steels 4 extend in the horizontal direction and abut against the side of the H-beams 3 away from the template 100, the plurality of H-beams 3 are arranged in the horizontal direction at intervals, the plurality of outer channel steels 4 are arranged in the vertical direction at intervals, and the template pull rod structure 1 is clamped between any two adjacent outer channel steels 4. The H-beams 3 and the outer channel steels 4 both have large rigidity, light weight and strong load-bearing capacity, and can stably support the template 100.

[0069] Further, referring to Figure 6 The template fixing device further comprises a plurality of H-beams 3 and a plurality of outer channel steels 4, the H-beams 3 extend in the vertical direction and abut against the outer side of the template 100, the outer channel steels 4 extend in the horizontal direction and abut against the side of the H-beams 3 away from the template 100, the plurality of H-beams 3 are arranged in the horizontal direction at intervals, the plurality of outer channel steels 4 are arranged in the vertical direction at intervals, and the template pull rod structure 1 is clamped between any two adjacent outer channel steels 4. The H-beams 3 and the outer channel steels 4 both have large rigidity, light weight and strong load-bearing capacity, and can stably support the template 100.

[0070] The template fixing device provided in the embodiment has high installation standardization and is convenient to use on the construction site.

[0071] Specifically, the process of fixing the template 100 by using the template fixing device provided in the embodiment is as follows:

[0072] S1, connecting the connecting sleeve 121 and the pull rod body 11;

[0073] S2, applying a lubricant at the connection between the connecting sleeve 121 and the pull rod body 11, and winding the waterproof piece 15 around the connection between the connecting sleeve 121 and the pull rod body 11;

[0074] S3, referring to Figure 7 , the H-beams 3 and the outer channel steels 4 are sequentially installed outside the template 100, and the pull rod body 11 and the connecting sleeve 121 are sequentially inserted into the perforations until the limiting ring 13 contacts the outer side of the template 100;

[0075] S4, referring to Figure 8 , the gasket 5 and the fastener 2 are sequentially installed on the connecting rod 122, the fastener 2 is screwed until the gasket 5 is pressed against the outer channel steel 4, and the connecting rod 122 and the template 100 need to be kept vertical during the process;

[0076] S5, referring to Figure 9 , the gasket 14 is sleeved on the connecting sleeve 121, and the gasket 14 is bonded to the inner side of the template 100; the jacking piece is installed and jacks the gasket 14.

[0077] Specifically, the process of disassembling the formwork 100 using the template fixing device provided in the embodiment is as follows:

[0078] S1, referring to Figure 10 , unscrew the fastener 2 in reverse to remove the fastener 2 and the backing plate 5 from the connecting rod 122, and sequentially remove the outer channel steel 4 and the I-beam 3;

[0079] S2, referring to Figure 10 , screw the connecting rod 122 to separate the connecting sleeve 121 from the pull rod body 11, and take out the connecting sleeve 121 from the inner side of the formwork 100;

[0080] S3, referring to Figure 4 and Figure 10 , disassemble the formwork 100 and take out the stopper ring 14 from the concrete structure 200, and a recess 201 is formed at the corresponding position of the concrete structure 200;

[0081] S4, fill the recess 201 with mortar.

[0082] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited to this. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed in the present application can be easily thought of by any person skilled in the art, and all such changes or replacements fall within the protection scope and disclosure scope of the present application.

Claims

1. A template tie rod structure (1) comprising a tie rod body (11), characterized in that, Also comprising: a connecting assembly (12) comprising a connecting sleeve (121) and a connecting rod (122), the connecting sleeve (121) being threadedly connected with the connecting rod (122), and the rod body (11) being located at one end of the connecting sleeve (121) away from the connecting rod (122); a limiting ring (13) sleeved on the connecting sleeve (121) and fixedly connected with the connecting sleeve (121), the template (100) being provided with a through hole, and an outer diameter of the limiting ring (13) being greater than a diameter of the through hole; a stop ring (14) sleeved on the connecting sleeve (121) and capable of sealingly cooperating with the template (100); a waterproof member (15) wound at a connecting position of the connecting sleeve (121) and the rod body (11).

2. The template tie rod structure (1) according to claim 1, characterized in that An inner thread (1211) is arranged on a hole wall of the connecting sleeve (121), and an outer thread (111) is arranged on the rod body (11) and threadedly cooperates with the inner thread (1211).

3. The template tie rod structure (1) according to claim 2, characterized in that A distance from the inner thread (1211) away from one end of the rod body (11) to the limiting ring (13) is greater than a sum of a protective layer thickness of the concrete structure (200) and a thickness of the template (100).

4. The template tie-rod structure (1) according to claim 1, characterized in that The template rod structure (1) further comprises a tightening member, one end of the tightening member being fixedly connected with a stress reinforcement of the concrete structure (200), and the other end of the tightening member being abutted with the stop ring (14) to tightly press the stop ring (14) against the template (100).

5. The template tie rod structure (1) according to claim 4, characterized in that A side of the stop ring (14) away from the tightening member is capable of being bonded with an inner side surface of the template (100).

6. A template tieback structure (1) according to any one of claims 1-5, characterized in that An outer inclined surface (1212) is arranged at a connecting end of the connecting sleeve (121) and the rod body (11), and the outer inclined surface (1212) gradually moves away from an inner cavity of the connecting sleeve (121) in a direction close to the connecting rod (122).

7. A template tieback structure (1) according to any one of claims 1-5, characterized in that The waterproof member (15) is made of waterproof adhesive tape.

8. A template tieback structure (1) according to any one of claims 1-5, characterized in that The stop ring (14) is an annular structure made of rubber.

9. A template holding device, characterized in that The template rod structure (1) further comprises a fastening member (2) located at an outer side of the template (100) and movably arranged on the connecting rod (122) along an axial direction of the connecting rod (122).

10. The formwork fixing device according to claim 9, characterized in that A screw rod portion (1221) is arranged at one end of the connecting rod (122) away from the connecting sleeve (121), a threaded hole (21) is arranged on the fastening member (2), and the screw rod portion (1221) is arranged in the threaded hole (21) and threadedly connected with the threaded hole (21).

Images