Pull rod assembly and fixing device with same

Abstract

The utility model discloses a pull rod assembly and a fixing device with the same, the pull rod assembly comprises an outer pull rod and an inner pull rod, the outer pull rod is used for movably penetrating through a template, two ends of the outer pull rod are respectively positioned on two sides of the template, and the inner pull rod is positioned on one side of the template and is detachably connected with the outer pull rod. According to the pull rod assembly, a structure located outside concrete can be detached without cutting and polishing, operation is convenient, no cutting face is exposed in air, and the thickness of a concrete net protection layer and the structural durability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a pull rod assembly and a fixing device having the same. Background Art

[0002] During the construction of the formwork sub-project of a large concrete structure, due to the structural strength requirements, tie rods need to be set on the back ribs of the formwork to prevent problems such as expansion and overturning. In the prior art, after the concrete pouring is completed, the tie rods located outside the concrete need to be cut and polished in sequence by workers operating a cutting machine before they can be removed. The operation is inconvenient, and the cut surface of the tie rods is exposed to the air and is easily corroded, affecting the thickness of the net protective layer of the concrete and the durability of the structure. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a tie rod assembly, which can remove the structure outside the concrete without cutting and grinding, is easy to operate, and no cutting surface is exposed to the air, thereby ensuring the thickness of the net protective layer of the concrete and the durability of the structure.

[0004] The utility model also aims to provide a fixing device having the above-mentioned pull rod assembly.

[0005] According to the embodiment of the first aspect of the utility model, the pull rod assembly includes an outer pull rod and an inner pull rod. The outer pull rod is used to be movably installed in the template, and its two ends are respectively located on both sides of the template. The inner pull rod is located on one side of the template and is detachably connected to the outer pull rod.

[0006] According to the tie rod assembly of the utility model, the outer tie rod and the inner tie rod are detachably connected, so that after the concrete pouring is completed, the tie rod assembly does not need to be cut or polished to remove the structure outside the concrete, which is easy to operate and no cut surface is exposed to the air, thereby ensuring the thickness of the net protective layer of the concrete and the durability of the structure. At the same time, the outer tie rod can be recycled, reducing the cost of use.

[0007] According to some embodiments of the present invention, the inner pull rod is snap-connected to the outer pull rod.

[0008] According to some embodiments of the present utility model, the inner pull rod is threadedly connected to the outer pull rod.

[0009] According to some embodiments of the utility model, the tie rod assembly also includes a connecting piece, the connecting piece is provided with an internal thread, the inner tie rod and the outer tie rod are both provided with an external thread matching the internal thread, and the internal thread is threadedly connected to the external thread; or, the connecting piece is provided with an external thread, the inner tie rod and the outer tie rod are both provided with an internal thread matching the external thread, and the internal thread is threadedly connected to the external thread.

[0010] According to some embodiments of the present invention, the tie rod assembly further includes a sleeve, which is sleeved on the outside of the outer tie rod, with one end of the sleeve connected to the inner tie rod and the other end abutting against the template.

[0011] According to some embodiments of the present invention, the sleeve is sealingly connected to the inner pull rod and is sealingly abutted against the template.

[0012] According to some embodiments of the present invention, the sleeve is a corrosion-resistant part.

[0013] According to some embodiments of the utility model, the outer tie rod is vertically penetrated through the template; the inner tie rod is connected to the outer tie rod along the extension direction of the outer tie rod.

[0014] The fixing device according to the second embodiment of the utility model comprises the tie rod assembly and the template in the above embodiment, and the tie rod assembly can be movably arranged in the template.

[0015] According to the fixing device of the embodiment of the utility model, by adopting the tie rod assembly in the above embodiment, it is possible to reduce problems such as mold expansion and overturning during concrete pouring, and after the concrete pouring is completed, it is easy to remove the tie rod structure located outside the concrete, thereby reducing construction costs.

[0016] In some embodiments of the present invention, a side of the template away from the inner tie rod is provided with a plurality of back ribs spaced apart in the height direction, and the outer tie rod is passed between two adjacent back ribs and abuts against the two adjacent back ribs. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a pull rod assembly according to an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a fixing device according to an embodiment of the utility model.

[0019] Reference numerals:

[0020] Tie rod assembly 100,

[0021] Outer tie rod 10, inner tie rod 20, connector 30, sleeve 40,

[0022] Fixing device 1000 , formwork 200 , back rib 201 , backing plate 202 , concrete 2000 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0025] The following describes a tie rod assembly 100 and a fixing device 1000 having the same according to an embodiment of the present invention with reference to the accompanying drawings.

[0026] Reference Figure 1 According to the embodiment of the first aspect of the utility model, the tie rod assembly 100 includes an outer tie rod 10 and an inner tie rod 20. The outer tie rod 10 is used to be movably installed in the template 200, and its two ends are respectively located on both sides of the template 200. The inner tie rod 20 is located on one side of the template 200 and is detachably connected to the outer tie rod 10.

[0027] Specifically, refer to Figure 1 The tie rod assembly 100 in the embodiment of the utility model is used to connect with the formwork 200 to prevent problems such as mold expansion and overturning when pouring concrete 2000. The tie rod assembly 100 includes an outer tie rod 10 and an inner tie rod 20. After the concrete 2000 is poured, the inner tie rod 20 is located inside the concrete 2000, and the outer tie rod 10 is at least partially located outside the concrete 2000.

[0028] The outer tie rod 10 is used to be movably inserted into the template 200, so that the template 200 can provide support for the outer tie rod 10, and the outer tie rod 10 can be pulled out from the template 200; the two ends of the outer tie rod 10 are respectively located on both sides of the template 200, and the inner tie rod 20 is located on one side of the template 200, so that one end of the outer tie rod 10 is conveniently connected to the inner tie rod 20, and when the concrete 2000 is poured, the outer tie rod 10 is not easy to fall out of the template 200.

[0029] The outer tie rod 10 and the inner tie rod 20 are detachably connected, so that after the pouring of the concrete 2000 is completed, there is no need to remove the tie rod assembly 100 located outside the concrete 2000 by cutting and grinding. The tie rod assembly 100 located outside the concrete 2000 can be removed by simply separating the outer tie rod 10 from the inner tie rod 20. The removal operation is simple, and after the removal is completed, the inner tie rod 20 is located inside the outer surface of the concrete 2000, and the inner tie rod 20 can be sealed by grouting, thereby ensuring the thickness of the net protective layer of the concrete and the durability of the structure. At the same time, after the outer tie rod 10 is removed, it can continue to be used in conjunction with the inner tie rod 20 next time, and can be recycled, thereby reducing the cost of use.

[0030] Therefore, refer to Figure 1 According to the tie rod assembly 100 of the utility model, by detachably connecting the outer tie rod 10 and the inner tie rod 20, after the pouring of the concrete 2000 is completed, the tie rod assembly 100 does not need to be cut or polished to remove the structure outside the concrete 2000, which is easy to operate and no cutting surface is exposed to the air, thereby ensuring the thickness of the net protective layer of the concrete and the durability of the structure. At the same time, the outer tie rod 10 can be recycled, reducing the cost of use.

[0031] In some embodiments of the present invention, the inner pull rod 20 is snap-connected to the outer pull rod 10 .

[0032] By snap-fitting the inner pull rod 20 and the outer pull rod 10, a detachable connection between the inner pull rod 20 and the outer pull rod 10 is achieved, and disassembly and assembly are convenient.

[0033] Specifically, one of the inner pull rod 20 and the outer pull rod 10 can be provided with a protrusion, and the other can be provided with a buckle; or, the inner pull rod 20 and the outer pull rod 10 are connected by a buckle via a buckle. For example, the buckle is provided with a protrusion, and the inner pull rod 20 and the outer pull rod 10 are provided with a buckle, or the buckle is provided with a buckle, and the inner pull rod 20 and the outer pull rod 10 are provided with a protrusion, etc.

[0034] In some embodiments of the present invention, referring to Figure 1 The inner tie rod 20 is threadedly connected to the outer tie rod 10.

[0035] By threading the inner tie rod 20 and the outer tie rod 10, a detachable connection between the inner tie rod 20 and the outer tie rod 10 is achieved, and the connection reliability is high.

[0036] Specifically, one of the inner pull rod 20 and the outer pull rod 10 can be provided with an internal thread, and the other can be provided with an external thread. For example, the snap member is provided with an internal thread, and the inner pull rod 20 and the outer pull rod 10 are provided with external threads, or the snap member is provided with an external thread, and the inner pull rod 20 and the outer pull rod 10 are provided with an internal thread, etc.

[0037] Of course, the present application is not limited thereto, and in other embodiments, the inner pull rod 20 and the outer pull rod 10 may also be connected in other detachable ways, such as a rotational limit connection.

[0038] In some embodiments of the present invention, referring to Figure 1 The tie rod assembly 100 further includes a connecting member 30, the connecting member 30 is provided with an internal thread, the internal tie rod 20 and the external tie rod 10 are both provided with an external thread matching the internal thread, and the internal thread is threadedly connected with the external thread;

[0039] Alternatively, the connecting member 30 is provided with an external thread, and both the inner pull rod 20 and the outer pull rod 10 are provided with an internal thread matching the external thread, and the internal thread is threadably connected to the external thread.

[0040] By providing the connecting piece 30 and providing the same thread structure on the inner pull rod 20 and the outer pull rod 10, the inner pull rod 20 and the outer pull rod 10 have the same structure, which is convenient for use.

[0041] The connecting member 30 may be a threaded sleeve, etc. The connecting member 30 may be a steel bar, a PVC member, etc.

[0042] In some embodiments of the present invention, referring to Figure 1 The tie rod assembly 100 further includes a sleeve 40 , which is sleeved on the outside of the outer tie rod 10 , and has one end connected to the inner tie rod 20 and the other end abutting against the template 200 .

[0043] By setting a sleeve 40 sleeved on the outside of the outer tie rod 10, the concrete 2000 does not contact the outer tie rod 10 during pouring, which facilitates the withdrawal of the outer tie rod 10 after pouring. One end of the sleeve 40 is connected to the inner tie rod 20 to support the sleeve 40 through the inner tie rod 20, and the other end abuts against the template 200, so that the template 200 is convenient to remove.

[0044] In some embodiments, the sleeve 40 may be a corrugated tube, etc. Specifically, the sleeve 40 may be connected to the connector 30 .

[0045] In some embodiments of the present invention, referring to Figure 1 The sleeve 40 is sealedly connected to the inner tie rod 20 and is in sealing contact with the template 200 .

[0046] By sealingly connecting the sleeve 40 to the inner tie rod 20 and sealingly abutting against the formwork 200, it is difficult for concrete 2000 to leak from the connection between the sleeve 40 and the inner tie rod 20 and the abutment with the formwork 200 to the outer tie rod 10 during pouring, making it easy to pull out the outer tie rod 10 during dismantling.

[0047] Specifically, the sleeve 40 can be connected to the connector 30, for example, it can be integrally formed with the connector 30, or sealed by a sealant, etc. The abutment between the sleeve 40 and the template 200 can be sealed by a sealant, etc.

[0048] In some embodiments of the present invention, the sleeve 40 is a corrosion-resistant part.

[0049] By setting the sleeve 40 as a corrosion-resistant part, after the pouring of concrete 2000 is completed, the sleeve 40 is grouted and sealed. The annular cross-section of the sleeve 40 exposed to the air is not easy to chemically react with air or moisture, and is not easy to corrode, thereby ensuring the quality of concrete 2000.

[0050] Specifically, the sleeve 40 may be a PVC member or the like.

[0051] In some embodiments of the present invention, referring to Figure 1 The outer tie rod 10 is vertically penetrated through the template 200 ; the inner tie rod 20 is connected to the outer tie rod 10 along the extension direction of the outer tie rod 10 .

[0052] By vertically passing the outer tie rod 10 through the formwork 200 and connecting the inner tie rod 20 to the outer tie rod 10 along the extension direction of the outer tie rod 10, the reliability of the connection between the tie rod and the concrete 2000 and the formwork 200 is improved. Under the premise that the length of the tie rod assembly 100 is certain, the width of the tie rod assembly 100 extending into the concrete 2000 is extended, further reducing the problem of mold expansion and overturning of the formwork 200.

[0053] In some embodiments, the outer tie rod 10 is connected to the template 200 at a certain angle, for example, the angle between the outer tie rod 10 and the template 200 can be 30°, 45°, 60°, etc. The inner tie rod 20 and the outer tie rod 10 can also be connected at a certain angle, for example, the angle between the inner tie rod 20 and the outer tie rod 10 can be 30°, 45°, 60°, 90°, 120°, etc.

[0054] According to the fixing device 1000 of the second embodiment of the utility model, refer to Figure 2 , including the tie rod assembly 100 and the template 200 in the above embodiment, the tie rod assembly 100 can be movably inserted into the template 200.

[0055] According to the fixing device 1000 of the embodiment of the present utility model, referring to Figure 2 By adopting the tie rod assembly 100 in the above embodiment, it is possible to reduce problems such as mold expansion and overturning when pouring concrete 2000, and after the pouring of concrete 2000 is completed, it is easy to remove the tie rod structure located outside the concrete 2000, thereby reducing construction costs.

[0056] In some embodiments of the present invention, a side of the template 200 away from the inner tie rod 20 is provided with a plurality of back ribs 201 spaced apart in the height direction, and the outer tie rod 10 is passed between two adjacent back ribs 201 and abuts against the two adjacent back ribs 201 .

[0057] The back ribs 201 are provided to improve the structural strength of the template 200. The outer tie rod 10 is inserted between two adjacent back ribs 201 and abuts against the two adjacent back ribs 201, so that the outer tie rod 10 can disperse the force through the back ribs 201, and the template 200 is not easily damaged.

[0058] Of course, it is understandable that the plurality of back ribs 201 may also be arranged at intervals along the width direction of the template 200 .

[0059] In some embodiments, a stopper is provided at one end of the outer tie rod 10 away from the inner tie rod 20, and the stopper abuts against two adjacent back ribs 201. Furthermore, a pad 202 is provided between the stopper and the back ribs 201.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or means that the first feature is lower in level than the second feature.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tie rod assembly, characterized in that: include: An external tie rod (10), the external tie rod (10) being used to be movably disposed in the template (200), and having two ends respectively located on two sides of the template (200); An inner pull rod (20), the inner pull rod (20) is located on one side of the template (200) and is detachably connected to the outer pull rod (10).

2. The tie rod assembly according to claim 1, characterized in that: The inner pull rod (20) is snap-connected to the outer pull rod (10).

3. The tie rod assembly according to claim 1, characterized in that: The inner tie rod (20) is threadedly connected to the outer tie rod (10).

4. The tie rod assembly according to claim 3, characterized in that: It also includes a connecting piece (30), wherein the connecting piece (30) is provided with an internal thread, the inner pull rod (20) and the outer pull rod (10) are both provided with an external thread matching the internal thread, and the internal thread is threadedly connected to the external thread; Alternatively, the connecting member (30) is provided with an external thread, the inner pull rod (20) and the outer pull rod (10) are both provided with an internal thread matching the external thread, and the internal thread is threadably connected to the external thread.

5. The tie rod assembly according to claim 1, characterized in that: It also includes a sleeve (40), which is sleeved on the outside of the outer pull rod (10), with one end connected to the inner pull rod (20) and the other end abutting against the template (200).

6. The tie rod assembly according to claim 5, characterized in that: The sleeve (40) is sealingly connected to the inner pull rod (20) and is sealingly abutted against the template (200).

7. The tie rod assembly according to claim 5, characterized in that: The sleeve (40) is a corrosion-resistant part.

8. The tie rod assembly according to any one of claims 1 to 7, characterized in that: The outer tie rod (10) is vertically arranged through the template (200); The inner tie rod (20) is connected to the outer tie rod (10) along the extension direction of the outer tie rod (10).

9. A fixing device, characterized in that: include: The tie rod assembly (100) according to any one of claims 1 to 8; The template (200) is provided with the pull rod assembly (100) being movably arranged on the template (200).

10. The fixing device according to claim 9, characterized in that: A plurality of back ribs (201) spaced apart in the height direction are provided on one side of the template (200) away from the inner tie rod (20); the outer tie rod (10) is passed between two adjacent back ribs (201) and abuts against two adjacent back ribs (201).

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