A reinforced concrete tongue and groove pipe strip integral forming device and construction method

Abstract

The present invention provides an integral forming device and construction method for reinforced concrete tongue-and-groove pipe trowels, relating to the technical field of tongue-and-groove pipe connection technology. The device comprises a steel trowel having a base frame mounted with a T-shaped connecting plate equipped with a handle; and adjusting members mounted on either side of the base frame, adapted to adjust the spacing between the base frame and the reinforced concrete pipe. The present invention ensures uniform thickness of each layer of trowel construction and simultaneously trims the edges of the trowel, thereby ensuring that the appearance and construction quality of the trowels used in reinforced concrete tongue-and-groove pipe connections meet standards.

Description

Technical Field

[0001] The invention relates to the technical field of tongue and groove pipe connection, in particular to a reinforced concrete tongue and groove pipe trowel integral forming device and a construction method. Background Art

[0002] Typically, conventional construction methods involve applying the trowel tape to reinforced concrete tongue-and-groove pipes in batches, while simultaneously trimming the tape ends with a rubber strip of the same width. This construction method is inconvenient and makes it difficult to ensure uniform thickness of the trowel tape at the reinforced concrete tongue-and-groove pipe interface, thus affecting the tape's appearance and construction quality.

[0003] To this end, the present invention requires an integral forming device and construction method for reinforced concrete tongue and groove pipe trowel tape to ensure that the thickness of each layer of the tape is uniform and the edges of the tape can be trimmed at the same time, so that the appearance and construction quality of the reinforced concrete tongue and groove pipe interface tape can meet the standards.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the inventors have come up with the technical solutions of the present invention through practice and summary. The present invention discloses that the basic concept of the technical solutions adopted by the present invention to solve the above technical problems is:

[0006] A device for integrally forming a reinforced concrete tongue-and-groove pipe trowel comprises a steel trowel, the steel trowel comprising a bottom frame, a connecting plate mounted on the bottom frame, the connecting plate being T-shaped and having a handle mounted on the connecting plate; adjusting parts are mounted on both sides of the bottom frame, the adjusting parts being suitable for adjusting the spacing between the bottom frame and the reinforced concrete tongue-and-groove pipe.

[0007] In a further technical solution, the bottom frame is I-shaped, and two sets of adjustment members are installed on both sides;

[0008] The adjusting member comprises a long nut arranged vertically, an anti-dropping hook is mounted on the long nut, and the anti-dropping hook is suitable for rotating inside the long nut.

[0009] In a further technical solution, a threaded rod is provided at the bottom of the anti-drop hook, and a ball is installed at the bottom of the threaded rod, and the outer diameter of the ball is smaller than the inner diameter of the long nut.

[0010] In a further technical solution, a strip groove is provided on the bottom frame, a positioning hole is provided in the strip groove, a lower pressure plate is suitable for being installed under the positioning hole, the lower pressure plate is an arc-shaped plate, and is arranged cocentrically with the reinforced concrete tongue and groove pipe; a blind hole is provided on the lower pressure plate and a locking bolt is installed between the lower pressure plate and the positioning hole.

[0011] A construction method for a reinforced concrete tongue-and-groove pipe trowel integral forming device, using the trowel integral forming device, comprises the following steps:

[0012] Step 1: Support the formwork and cast the finished reinforced concrete pipe base. Before the reinforced concrete pipe base solidifies, anchor the wire mesh into the reinforced concrete pipe base according to the drawing requirements and perform maintenance.

[0013] Step 2: After the concrete strength of the reinforced concrete pipe base meets the requirements, clean the surface of the connected reinforced concrete tongue-and-groove pipe joints and apply cement slurry. The cement slurry is a mixture of cement and water at a mass ratio of 1:1. After the slurry is applied and dried, the cement mortar is used to seal the seams. After the cement mortar hardens, the pipe seams are sealed.

[0014] Then the pipe wall is chiseled and cleaned, and moistened before the tape application begins. The tape is applied using an integral tape forming device.

[0015] Step 3:

[0016] S1. Bend two round steel bars into a semicircular arc concentric with the reinforced concrete tongue-and-groove pipe. The radius of the semicircular arc is larger than the outer radius of the required trowel. A steel plate is welded to the bottom end of the semicircular arc, and a positioning hole is opened on the steel plate. The positioning hole is fixed to the reinforced concrete pipe base with a fixing pin to form a track.

[0017] S2, the steel spatula includes a bottom frame, a connecting plate and a handle, with two sets of long nuts welded symmetrically on both sides for connecting the anti-drop hooks. The anti-drop hooks are screwed into the long nuts to achieve layered plastering.

[0018] Step 4: Apply the tape in layers:

[0019] Construction of the first layer of cement mortar: Apply the mortar, and then adjust the distance between the steel spatula and the pipe wall by adjusting the length of the anti-slip hook screwed into the long nut. Hang the adjusted steel spatula on the track through the anti-slip hook, and apply it back and forth along the track to complete the construction of the first layer of cement mortar. After paving, let it stand and solidify;

[0020] Construction of the second layer of cement mortar: press in the wire mesh and apply mortar, then apply the second layer of cement mortar on the outside in the same way as above;

[0021] The Nth layer of cement mortar can be added as needed. The construction method is the same. The corresponding semicircular arc needs to be selected with the appropriate size, N≥2;

[0022] Step 5: After the outer layer of cement mortar tape is completed, cover it with film for maintenance, remove the steel rails, and proceed with the next pipe interface tape construction. After the tape strength reaches the requirement, backfill the pipeline trench.

[0023] In a further technical solution, the cement mortar includes cement, gravel, asbestos, water-tight and water, and the mass ratio thereof is (1.5-2): (3-4): 2.5:1:4. Beneficial effects

[0024] The present invention utilizes a rail formed from bent steel bars and a specially designed steel spatula to form an integrated plastering strip forming device. The device can achieve layered plastering by adjusting the hook length between the rail and the steel spatula. Using this device for plastering strip construction effectively ensures construction quality and a well-formed appearance. Furthermore, the method is simple to operate, convenient to construct, and has a wide range of applicability.

[0025] Secondly, the present invention adopts an arc-shaped plate with a more fitting bottom, which is installed in abutment in the connection seam of the tongue-and-groove pipe, and is suitable for squeezing the concrete therein to form a denser connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic diagram of the installation of the reinforced concrete pipe base and the tongue-and-groove pipe of the present invention;

[0028] Figure 2 for Figure 1 A magnified view of part A;

[0029] Figure 3 This is a schematic diagram of the main steps of the present invention;

[0030] Figure 4 It is a structural diagram of the steel spatula of the present invention;

[0031] Figure 5 This is a structural diagram of the steel spatula according to Example 2 of the present invention.

[0032] In the picture:

[0033] Reinforced concrete pipe base; 2. Steel spatula; 21. Bottom frame; 22. Connecting plate; 23. Handle; 24. Long nut; 25. Anti-slip hook; 251. Threaded rod; 252. Ball bearing; 26. Strip groove; 27. Lower pressure plate; 28. Locking bolt; 3. Reinforced concrete tongue and groove pipe; 4. Steel mesh; 5. Round steel; 6. Steel plate; 8. First layer of cement mortar; 9. Second layer of cement mortar; 10. Film. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention is a reinforced concrete tongue and groove pipe trowel integral forming device, including a steel trowel 2, the steel trowel 2 includes a bottom frame 21, a connecting plate 22 is installed on the bottom frame 21, the connecting plate 22 is T-shaped, and a handle 23 is installed on the connecting plate 22; adjusting parts are installed on both sides of the bottom frame 21, and the adjusting parts are suitable for adjusting the distance between the bottom frame 21 and the reinforced concrete tongue and groove pipe 3.

[0038] like Figure 3 As shown, the bottom frame 21 is I-shaped, with two sets of adjustment members installed on both sides; the adjustment members include a vertically arranged long nut 24, on which is mounted an anti-slip hook 25, which is adapted to rotate within the long nut 24. The bottom of the anti-slip hook 25 is provided with a threaded rod 251, and the bottom of the threaded rod 251 is mounted with a ball 252, the outer diameter of which is smaller than the inner diameter of the long nut 24.

[0039] A construction method for a reinforced concrete tongue-and-groove pipe trowel integral forming device, using the trowel integral forming device, comprises the following steps:

[0040] Step 1: Support the formwork and cast the finished reinforced concrete pipe base 1. Before the reinforced concrete pipe base 1 solidifies, anchor the wire mesh 4 into the reinforced concrete pipe base 1 according to the requirements of the drawing and perform maintenance. The length of both ends can be greater than 40 cm to facilitate insertion into the reinforced concrete pipe base 1 that has not yet solidified.

[0041] Step 2: After the concrete strength of the reinforced concrete pipe base 1 meets the requirements, the connection of the connected reinforced concrete tongue-and-groove pipe 3 is first cleaned and then coated with cement slurry, which is a mixture of cement and water in a mass ratio of 1:1; after the cement mortar is applied and dried, the seam is sealed, and the pipe seam is sealed with the cement mortar after hardening;

[0042] Then the pipe wall is chiseled and cleaned, and moistened before the tape application begins. The tape is applied using an integral tape forming device.

[0043] Step 3:

[0044] S1. Bend two round steel bars 5 to form a semicircular arc concentric with the reinforced concrete tongue-and-groove pipe 3. The radius of the semicircular arc is larger than the required outer radius of the smear tape. A steel plate 6 is welded to the bottom end of the semicircular arc, and a positioning hole is opened on the steel plate 6. The positioning hole is fixed to the reinforced concrete pipe base 1 with a fixing pin to form a track;

[0045] The radius of the round steel 5 should be sufficient for the construction space of multiple layers of cement mortar and be able to slide on the track.

[0046] S2, steel spatula 2 includes a bottom frame 21, a connecting plate 22 and a handle 23, with two sets of long nuts 24 symmetrically welded on both sides for connecting anti-drop hooks 25. The anti-drop hooks 25 are screwed into the length of the long nuts 24 to achieve layered plastering;

[0047] Step 4: Apply the tape in layers:

[0048] Construction of the first layer of cement mortar 8: Apply the mortar, and adjust the distance between the steel spatula 2 and the pipe wall by adjusting the length of the anti-slip hook 25 screwed into the long nut 24. Hang the adjusted steel spatula 2 on the track through the anti-slip hook 25, and press back and forth along the track to complete the construction of the first layer of cement mortar 8. After paving, let it stand and solidify;

[0049] Construction of the second layer of cement mortar 9: press in the steel mesh 4 and apply mortar, then construct the second layer of cement mortar 9 on the outside in the same way as above;

[0050] The Nth layer of cement mortar can be added as needed. The construction method is the same. The corresponding semicircular arc needs to be selected with the appropriate size, N≥2;

[0051] Step 5: After the outer layer of cement mortar tape is completed, cover it with film 10 for maintenance, remove the steel rails, and proceed to the next pipeline interface tape construction. After the tape strength reaches the requirement, backfill the pipeline trench.

[0052] Specifically, the cement mortar includes cement, gravel, asbestos, water-tight sealant, and water in a mass ratio of 1.5-2:3-4:2.5:1:4. The specific ratio will vary depending on the actual tongue-and-groove pipe. The gravel has a mesh size of 40-70, the asbestos is asbestos mortar, and the water-tight sealant is a common existing material and is a fast-setting type. After mixing, it must be used within a certain period of time.

[0053] Example 2

[0054] like Figure 4 and 5The figure shows another embodiment of the present invention. Based on Example 1, in order to enhance the downward pressure of the steel trowel, a strip groove 26 is provided on the bottom frame 21. The strip groove 26 has a positioning hole. A lower pressure plate 27 is installed below the positioning hole. The lower pressure plate 27 is an arc-shaped plate and is arranged cocentrically with the reinforced concrete tongue and groove pipe 3. A blind hole is provided in the lower pressure plate 27, and a locking bolt 28 is installed between the lower pressure plate 27 and the positioning hole. During use, the lower pressure plate 27 can be first extended downward and then adjusted upward layer by layer to achieve a multi-layer adjustment method.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0056] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A reinforced concrete tongue and groove pipe strip integral forming device, characterized in that: The invention comprises a steel trowel (2), wherein the steel trowel (2) comprises a bottom frame (21), a connecting plate (22) is mounted on the bottom frame (21), the connecting plate (22) is T-shaped, and a handle (23) is mounted on the connecting plate (22); adjusting members are mounted on both sides of the bottom frame (21), and the adjusting members are suitable for adjusting the distance between the bottom frame (21) and the reinforced concrete tongue-and-groove pipe (3); The bottom frame (21) is I-shaped, and two sets of adjustment parts are installed on both sides; The adjusting member comprises a long nut (24) arranged vertically, an anti-drop hook (25) is mounted on the long nut (24), and the anti-drop hook (25) is suitable for rotating inside the long nut (24); The bottom of the anti-drop hook (25) is provided with a threaded rod (251), and the bottom of the threaded rod (251) is installed with a ball (252), and the outer diameter of the ball (252) is smaller than the inner diameter of the long nut (24); The bottom frame (21) is provided with a strip groove (26), a positioning hole is provided in the strip groove (26), and a lower pressure plate (27) is suitable for being installed under the positioning hole. The lower pressure plate (27) is an arc-shaped plate and is arranged cocentrically with the reinforced concrete tongue-and-groove pipe (3); a blind hole is provided on the lower pressure plate (27) and a locking bolt (28) is installed between the lower pressure plate (27) and the positioning hole.

2. A construction method for an integral forming device for reinforced concrete tongue-and-groove pipe stripping, characterized in that: The wiper belt integral forming device according to claim 1 is used, comprising the following steps: Step 1: supporting the formwork and casting the finished reinforced concrete pipe base (1). Before the reinforced concrete pipe base (1) solidifies, anchor the steel wire mesh (4) into the reinforced concrete pipe base (1) according to the drawing requirements and perform maintenance. Step 2: After the concrete strength of the reinforced concrete pipe base (1) meets the requirements, the joints of the connected reinforced concrete tongue-and-groove pipes (3) are first cleaned and then coated with cement slurry, which is a mixture of cement and water in a mass ratio of 1:1; after the cement mortar is applied and dried, the joints are sealed with cement mortar, and the pipe joints are sealed with cement mortar after hardening; Then the pipe wall is chiseled and cleaned, and moistened before the tape application begins. The tape is applied using an integral tape forming device. Step 3: S1. Two round steel bars (5) are bent to form a semicircular arc concentric with the reinforced concrete tongue-and-groove pipe (3). The radius of the semicircular arc is larger than the outer radius of the required smearing strip. A steel plate (6) is welded to the bottom end of the semicircular arc, and a positioning hole is opened on the steel plate (6). The positioning hole is fixed to the reinforced concrete pipe base (1) with a fixing pin to form a track; S2, steel spatula (2) includes a bottom frame (21), a connecting plate (22) and a handle (23), two sets of long nuts (24) are symmetrically welded on both sides for connecting the anti-drop hook (25), and the anti-drop hook (25) is screwed into the long nut (24) to achieve layered plastering; Step 4: Apply the tape in layers: Construction of the first layer of cement mortar (8): smear the mortar, and adjust the distance between the steel spatula (2) and the pipe wall by adjusting the length of the anti-drop hook (25) screwed into the long nut (24), and hang the adjusted steel spatula (2) on the track through the anti-drop hook (25), and spread and press back and forth along the track to complete the construction of the first layer of cement mortar (8). After paving, let it stand and solidify; Construction of the second layer of cement mortar (9): press in the steel mesh (4) and apply mortar, then construct the second layer of cement mortar (9) on the outside in the same manner as above; Up to the Nth layer of cement mortar can be added as needed. The construction method is the same. The corresponding semicircular arc needs to be selected with the appropriate size, N≥2; Step 5: After the outer layer of cement mortar tape is completed, it is covered with film (10) for maintenance, the steel rail is removed, and the next pipeline interface tape is constructed. After the tape strength reaches the requirement, the pipeline trench is backfilled.

3. The construction method of the reinforced concrete tongue-and-groove pipe tape integral forming device according to claim 2, characterized in that: The cement mortar comprises cement, gravel, asbestos, water-tight and water, and the mass ratio thereof is (1.5-2): (3-4): 2.5:1:4.

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