Quick pipe orifice flaring device for building construction pipeline

Abstract

The invention belongs to the technical field of building construction pipelines, and particularly relates to a quick pipe orifice flaring device for building construction pipelines, which comprises a mounting base and a driving motor, handles are fixed on the outer walls of the left and right sides of the mounting base, and a central shaft rod is mounted in an inner bearing of the mounting base; the outer side of the front end of the center shaft rod is fixedly sleeved with a first gear, a driving motor is fixedly installed over the installation base, the output end of the driving motor is fixedly connected with a second gear used for driving the center shaft rod to rotate, and a flaring adjusting assembly is installed in the rear end of the center shaft rod. The outer side of the rear end of the center shaft rod is provided with a plurality of extrusion assemblies annularly distributed around the center shaft rod, and a guide frame fixedly sleeves the outer side of the center shaft rod and is located behind the mounting base. According to the pipe flaring device, whole-section flaring can be carried out on the position, close to a pipe opening, of the pipeline instead of only flaring the pipe opening, butt joint installation between the flaring pipelines is facilitated, and construction operation is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction pipelines, and in particular relates to a quick pipe opening expanding device for building construction pipelines. Background Art

[0002] During construction, many metal pipes are used. However, metal pipes are manufactured according to specific diameters during production. During the actual construction and installation process, the diameters may not match, which affects the connection of the pipes. To solve this problem, a quick expansion device for the pipe opening is needed.

[0003] In the Chinese invention patent with the announcement number CN109277469B, a device for expanding hard pipes online and a method for using the same are provided. The device can expand hard pipes online, avoiding disassembly of the pipes without damaging them. The device is simple to assemble and can be quickly and easily disassembled after expansion, resulting in high work efficiency.

[0004] After searching and researching, it was found that using the aforementioned flaring device and flaring method, the pipe is expanded into a tapered shape, and the pipe opening has no straight sections. This is inconvenient during the installation of multiple pipes, affecting practical operation. Therefore, there is an urgent need to improve the existing quick flaring device for pipe openings in construction, and to provide a quick flaring device for pipe openings in construction. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a quick expansion device for construction pipes that has a reasonable design, a simple structure, uniform expansion, and a straight section after the pipe is expanded, which facilitates pipe docking and installation, so as to solve the problems in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A quick expanding device for pipe openings of construction pipelines comprises a mounting base and a driving motor, handles are fixed on the left and right outer walls of the mounting base, a central shaft is mounted on the internal bearing of the mounting base, a first gear is provided on the outer fixed sleeve at the front end of the central shaft, a driving motor is fixedly mounted directly above the mounting base, a second gear for driving the central shaft to rotate is fixedly connected to the output end of the driving motor, an expanding adjustment assembly is mounted inside the rear end of the central shaft, a plurality of extrusion assemblies distributed in a ring around the rear end of the central shaft are provided on the outer side, a guide frame is provided on the outer side of the central shaft and located at the rear fixed sleeve of the mounting base, the longitudinal section of the guide frame is a "+" shaped structure and a limiting groove is provided inside it.

[0008] As a preferred embodiment, the second gear is located directly above the first gear and the two are meshed and connected, and the diameter of the second gear is larger than the diameter of the first gear.

[0009] As a preferred embodiment, a cavity structure is provided inside the rear end of the central shaft, and a plurality of slide grooves are provided in a ring shape on the outer wall of the rear end of the central shaft, and the slide grooves are connected to the cavity structure inside the central shaft.

[0010] As a preferred embodiment, the expansion adjustment assembly includes a transverse axis, a movable tube, a bracket, a first push rod and a second push rod. The transverse axis bearing is installed at the center of the internal cavity structure of the central axis. The outer surface of the transverse axis is provided with a threaded structure. The outer thread of the transverse axis is sleeved with a movable tube. The outer wall of the movable tube is annularly fixed with multiple groups of brackets. The number of brackets in each group is two and they are locked and slid in the slide groove. The first push rod and the second push rod are hingedly installed on the two brackets respectively.

[0011] As a preferred embodiment, multiple groups of the brackets, multiple slide grooves and multiple groups of the extrusion assemblies are arranged in a one-to-one correspondence, the length of the movable tube is greater than the length of the slide groove, and the multiple groups of the extrusion assemblies form a linkage mechanism through the expansion adjustment assembly.

[0012] As a preferred embodiment, a positioning bolt for positioning the transverse axis is threadedly mounted on the front end outer wall of the central shaft, and the first push rod and the second push rod are equal in length and are always parallel to each other.

[0013] As a preferred embodiment, the extrusion assembly includes a limiting rod, a movable plate and a pressure-applying part. The limiting rod is fixedly installed in the inner middle position of the limiting groove, the movable plate is located on the outer side of the rear end of the central shaft, and a pressure-applying part is provided on the side of the movable plate away from the central shaft, and the outer surface of the pressure-applying part is a circular arc surface structure.

[0014] As a preferred embodiment, one end of each of the first push rod and the second push rod away from the bracket is hinged to the movable plate.

[0015] As a preferred embodiment, one end of the movable plate is engaged and slidably located in the limiting groove and is slidably sleeved on the outer side of the limiting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the solution of the present invention:

[0018] This device inserts multiple groups of extrusion components into the pipe and controls the depth as required, and then the cross bar with a threaded structure on the outer surface can be used to rotate to control the synchronous forward movement of the movable pipe and multiple groups of brackets. At this time, the first and second push rods of equal length and parallel to each other can be used to push multiple movable plates to slide and expand synchronously in the direction away from the central axis, so that the pipe mouth can be pressurized from the inside out to expand. Then the drive motor can be started, and the meshing first and second gears can be used to drive the central axis to drive the multiple groups of extrusion components to start rotating at a uniform speed, which facilitates the uniform expansion of the pipe mouth. Moreover, compared with the expansion device provided in the comparative document, this device can expand the entire section of the pipe near the pipe mouth, not just the pipe mouth, which facilitates the docking and installation of the pipes after expansion, and facilitates construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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. The following description is given with respect to the drawings:

[0020] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the present invention;

[0022] Figure 3 Schematic diagram of the left side structure of the central shaft and the first gear of the present invention;

[0023] Figure 4 This is a schematic diagram of the left side cross-sectional structure of the entire expansion adjustment assembly and the extrusion assembly of the present invention;

[0024] Figure 5 This is a rear view structural diagram of the extrusion assembly of the present invention in an expanded state;

[0025] Figure 6 This is a schematic diagram of the top view of the structure of the present invention in working state.

[0026] In the picture:

[0027] 1. Mounting base; 2. Handle; 3. Center shaft; 4. First gear; 5. Drive motor; 6. Second gear; 7. Flaring adjustment assembly; 71. Horizontal axis; 72. Movable tube; 73. Bracket; 74. First push rod; 75. Second push rod; 8. Positioning bolt; 9. Extrusion assembly; 91. Limit rod; 92. Movable plate; 93. Pressure portion; 10. Guide frame; 11. Limit slot; 12. Slide slot. DETAILED DESCRIPTION

[0028] The embodiments described below are only some of the embodiments of the present invention and do not represent all embodiments consistent with the present invention. Now, with reference to the accompanying drawings, the exemplary embodiments are described as follows:

[0029] like Figure 1-6 As shown, the quick expanding device for pipe openings of construction pipelines of the present invention includes a mounting base 1 and a driving motor 5. Handles 2 are fixed on the left and right outer walls of the mounting base 1. A central shaft 3 is installed on the internal bearing of the mounting base 1. A first gear 4 is provided on the outer front end of the central shaft 3. A driving motor 5 is fixedly installed directly above the mounting base 1. The output end of the driving motor 5 is fixedly connected to a second gear 6 for driving the central shaft 3 to rotate. A expanding adjustment component 7 is installed inside the rear end of the central shaft 3. A plurality of extrusion components 9 are provided on the outer rear end of the central shaft 3 in a ring-shaped arrangement. A guide frame 10 is provided on the outer side of the central shaft 3 and located at the rear of the mounting base 1. The longitudinal section of the guide frame 10 is a "+"-shaped structure and a limiting groove 11 is provided therein.

[0030] On the basis of the above structure, the second gear 6 is located directly above the first gear 4 and the two are meshed and connected. The diameter of the second gear 6 is greater than the diameter of the first gear 4.

[0031] In this embodiment, when the drive motor 5 is started to control the rotation of the second gear 6, the first gear 4 meshing with the second gear 6 can be used to drive the central shaft 3 and multiple groups of extrusion components 9 to rotate synchronously and uniformly, facilitating uniform expansion of the pipeline.

[0032] On the basis of the above structure, a cavity structure is provided inside the rear end of the central shaft 3 , and a plurality of slide grooves 12 are provided in a ring shape on the outer wall of the rear end of the central shaft 3 , and the slide grooves 12 are connected to the cavity structure inside the central shaft 3 .

[0033] In this embodiment, the sliding groove 12 is provided to improve the movement stability of the expansion adjustment component 7 .

[0034] On the basis of the above structure, the flaring adjustment assembly 7 includes a transverse shaft 71, a movable tube 72, a bracket 73, a first push rod 74 and a second push rod 75. The bearing of the transverse shaft 71 is installed at the center of the internal cavity structure of the central shaft 3. The outer surface of the transverse shaft 71 is provided with a threaded structure. The outer thread of the transverse shaft 71 is sleeved with a movable tube 72. The outer wall of the movable tube 72 is annularly fixed with multiple groups of brackets 73. The number of each group of brackets 73 is two and they are locked and slid in the slide groove 12. The first push rod 74 and the second push rod 75 are hingedly installed on the two brackets 73 respectively.

[0035] Based on the above structure, multiple groups of brackets 73, multiple slide grooves 12 and multiple groups of extrusion components 9 are arranged in a one-to-one correspondence, the length of the movable tube 72 is greater than the length of the slide groove 12, and the multiple groups of extrusion components 9 form a linkage mechanism through the expansion adjustment component 7.

[0036] In this embodiment, when the horizontal shaft 71 is controlled to rotate, the movable tube 72 sleeved on the outside thereof is controlled to slide, and the first push rod 74 and the second push rod 75 can be used to push the multiple movable plates 92 to slide and expand synchronously in the direction away from the central shaft 3, so that the pipe opening can be expanded from the inside out by applying pressure.

[0037] On the basis of the above structure, a positioning bolt 8 for positioning the transverse axis 71 is threadedly installed on the front end outer wall of the central shaft 3. The first push rod 74 and the second push rod 75 are equal in length and are always parallel to each other.

[0038] In this embodiment, by tightening the positioning bolt 8, the horizontal axis 71 can be positioned against the horizontal axis 71, thereby facilitating stable adjustment of the expansion adjustment assembly 7 and stabilizing the state of the extrusion assembly 9 after adjustment.

[0039] Based on the above structure, the extrusion assembly 9 includes a limiting rod 91, a movable plate 92 and a pressure-applying portion 93. The limiting rod 91 is fixedly installed in the inner middle position of the limiting groove 11, and the movable plate 92 is located on the outer side of the rear end of the central shaft 3. The side of the movable plate 92 facing away from the central shaft 3 is provided with a pressure-applying portion 93, and the outer surface of the pressure-applying portion 93 is a circular arc surface structure.

[0040] In this embodiment, the pressure-applying portion 93 having an arc surface is used to facilitate pressurizing and expanding the inner wall of the pipe.

[0041] On the basis of the above structure, one end of the first push rod 74 and the second push rod 75 away from the bracket 73 are both hinged to the movable plate 92 .

[0042] In this embodiment, the first push rod 74 and the second push rod 75 of equal length and always in parallel are used to facilitate pushing the movable plate 92 to maintain a horizontal posture and stable sliding adjustment.

[0043] On the basis of the above structure, one end of the movable plate 92 is engaged and slidably located in the limiting groove 11 and is slidably sleeved on the outer side of the limiting rod 91 .

[0044] In this embodiment, the setting of the limiting rod 91 can improve the stability of the movable plate 92 during the sliding adjustment process.

[0045] The working principle of the present invention is as follows:

[0046] When in use, first insert the central shaft 3 of the device and the multiple groups of extrusion assemblies 9 distributed in a ring around it into the pipe to be expanded, and determine the depth of the extrusion assembly 9 according to the required expansion length. Then, the existing electric drill can be used to use the socket head matching the front end of the horizontal shaft 71 to control the rotation of the horizontal shaft 71, so as to control the movable tube 72 threadedly sleeved on the outside of the horizontal shaft 71 to drive the bracket 73 to move forward along the slide groove 12 synchronously. At this time, the first push rod 74 and the second push rod 75 of equal length and always in a parallel state can be used to push the multiple movable plates 92 to slide and expand stably along the limit rod 91 in a synchronous manner in a direction away from the central shaft 3. During the expansion of the multiple movable plates 92, pressure can be applied to the pipe opening from the inside out, thereby achieving the purpose of expanding the pipe.

[0047] The movable plate 92 is used to expand the pipe initially, and then the drive motor 5 is started to control the rotation of the second gear 6. The first gear 4 meshing with the second gear 6 drives the central shaft 3, the multiple extrusion components 9 and the guide frame 10 to start synchronous and uniform rotation, thereby facilitating uniform expansion of the pipe opening and achieving a good expansion effect.

[0048] Compared with the expansion device provided in the comparative document, this device can expand the entire section of the pipe near the pipe mouth, rather than just expanding the pipe mouth, which facilitates the butt connection and installation of the pipes after expansion, facilitates construction operations, has good market application prospects, and is suitable for promotion and application;

[0049] It should be supplemented and specially explained that the driving motor 5 in this device is powered by a power wire connected to an external power supply, and the specific opening and closing control means of the driving motor 5 also adopts mature existing technologies on the market. It is not the key improvement direction of this case, so it will not be described in detail.

[0050] The above are only preferred specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A quick expansion device for pipe openings used in construction pipelines, comprising a mounting base (1) and a drive motor (5), characterized in that: A handle (2) is fixed on the left and right outer walls of the mounting base (1), a central shaft (3) is installed on the internal bearing of the mounting base (1), a first gear (4) is provided on the outer front end of the central shaft (3), a driving motor (5) is fixedly installed directly above the mounting base (1), and a second gear (6) for driving the central shaft (3) to rotate is fixedly connected to the output end of the driving motor (5), a flaring adjustment component (7) is installed inside the rear end of the central shaft (3), a plurality of extrusion components (9) distributed in a ring around the rear end of the central shaft (3) are provided on the outer side, a guide frame (10) is provided on the outer side of the central shaft (3) and located at the rear of the mounting base (1), the longitudinal section of the guide frame (10) is a "+" shaped structure and a limiting slot (11) is provided inside it.

2. A quick expansion device for pipe openings for construction pipelines according to claim 1, characterized in that: The second gear (6) is located directly above the first gear (4) and the two are meshed and connected. The diameter of the second gear (6) is greater than the diameter of the first gear (4).

3. The quick expansion device for pipe openings used in construction pipelines according to claim 1, characterized in that: A cavity structure is provided inside the rear end of the central shaft (3), and a plurality of slide grooves (12) are provided in an annular shape on the outer wall of the rear end of the central shaft (3), and the slide grooves (12) are connected to the cavity structure inside the central shaft (3).

4. A quick expansion device for pipe openings for construction pipelines according to claim 3, characterized in that: The flaring adjustment assembly (7) includes a transverse shaft (71), a movable tube (72), a bracket (73), a first push rod (74) and a second push rod (75). The bearing of the transverse shaft (71) is installed at the center of the internal cavity structure of the central shaft (3). The outer surface of the transverse shaft (71) is provided with a threaded structure. The outer thread of the transverse shaft (71) is sleeved with the movable tube (72). The outer wall of the movable tube (72) is annularly fixed with multiple groups of brackets (73). The number of each group of the brackets (73) is two and they are locked and slidably located in the slide groove (12). The first push rod (74) and the second push rod (75) are hingedly installed on the two brackets (73).

5. A quick expansion device for pipe openings used in construction pipelines according to claim 4, characterized in that: The plurality of brackets (73), the plurality of chute grooves (12) and the plurality of extrusion assemblies (9) are arranged in a one-to-one correspondence, the length of the movable tube (72) is greater than the length of the chute groove (12), and the plurality of extrusion assemblies (9) form a linkage mechanism through the expansion adjustment assembly (7).

6. A quick expansion device for pipe openings used in construction pipelines according to claim 5, characterized in that: A positioning bolt (8) for positioning the transverse axis (71) is threadedly mounted on the front end outer wall of the central shaft (3). The first push rod (74) and the second push rod (75) are of equal length and are always in a parallel state with each other.

7. A quick expansion device for pipe openings used in construction pipelines according to claim 6, characterized in that: The extrusion assembly (9) includes a limiting rod (91), a movable plate (92) and a pressure portion (93). The limiting rod (91) is fixedly installed at the inner middle position of the limiting groove (11). The movable plate (92) is located outside the rear end of the central shaft (3). The pressure portion (93) is provided on the side of the movable plate (92) facing away from the central shaft (3). The outer surface of the pressure portion (93) is a circular arc surface structure.

8. The quick expansion device for pipe openings used in construction pipelines according to claim 7, characterized in that: One end of each of the first push rod (74) and the second push rod (75) away from the bracket (73) is hinged to the movable plate (92).

9. A quick expansion device for pipe openings used in construction pipelines according to claim 8, characterized in that: One end of the movable plate (92) is engaged and slidably located in the limiting groove (11) and is slidably sleeved on the outer side of the limiting rod (91).

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