Inclined water diversion pipeline inner wall welding platform

Abstract

The utility model discloses an inclined water diversion pipeline inner wall welding platform which comprises an upper hanging assembly hung on the top of an upper pipeline, at least three iron chains connected with the upper hanging assembly and a supporting platform arranged in a lower pipeline and connected with the iron chains. The supporting platform is arranged on the lower portion of the gap opening. The supporting platform comprises a circular supporting platform plate arranged in the lower pipeline and connected with the iron chain, a rolling bearing seat arranged in the center of the bottom of the circular supporting platform plate, an adjusting screw penetrating through the circular supporting platform plate, and a hand wheel arranged at the top of the adjusting screw, wherein the upper portion of the adjusting screw is connected with the rolling bearing seat in a sleeving mode. The second nut seat is connected to the adjusting screw rod in a sleeving mode through threads and arranged on the lower portion of the circular supporting platform plate, and the supporting assemblies are annularly arranged on the circular supporting platform plate and the second nut seat and extrude the inner wall of the lower pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of water diversion pipeline construction, in particular to an inclined water diversion pipeline inner wall welding platform. Background Art

[0002] The inclined water diversion pipeline of this technology is mainly an impact-type hydroelectric water diversion equipment, which consists of a horizontal water diversion tunnel (horizontal water diversion pipeline) and an inclined water diversion pipeline. The inclined water diversion pipeline is laid along the direction of the mountain. Normally, the height difference of the inclined water diversion pipeline is between tens of meters and hundreds of meters, and it is a pressure-pressing component. During the installation of the inclined water diversion pipeline, several pipes are connected in sequence to form the final inclined water diversion pipeline. The outer wall welding of adjacent sections of the pipeline is relatively simple. However, its inner wall welding is more difficult. The reason is: the inclined water diversion pipeline is in an inclined state, and it is not convenient for welders to stand in the pipeline. For example Figure 1 As described above, after installing the lower pipe 100, the upper pipe 200 is hoisted and installed, and there is a gap 300 between the lower pipe 100 and the upper pipe 200. Since the lower pipe 300 and the upper pipe 100 are arranged obliquely, the operator cannot stand as easily as when welding a horizontal section of the pipe.

[0003] Therefore, it is urgent to propose a welding platform for the inner wall of an inclined water diversion pipeline with a simple structure and reliable support. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a welding platform for the inner wall of an inclined water diversion pipeline. The technical solution adopted by the utility model is as follows:

[0005] A welding platform for the inner wall of an inclined water diversion pipe is arranged in an upper pipe and a lower pipe, a slit is arranged between the upper pipe and the lower pipe, and the welding platform for the inner wall of the inclined water diversion pipe comprises an upper hanging assembly hung on the top of the upper pipe, at least three iron chains connected to the upper hanging assembly, and a supporting platform arranged in the lower pipe and connected to the iron chain; the supporting platform is placed at the lower part of the slit;

[0006] The support platform includes a circular support platform plate arranged in the lower pipe and connected to the iron chain, a rolling bearing seat arranged in the bottom center of the circular support platform plate, an adjusting screw rod penetrating the circular support platform plate and sleeve-connected to the rolling bearing seat at the upper part, a hand wheel arranged at the top of the adjusting screw rod, a second nut seat sleeve-connected to the adjusting screw rod and placed at the lower part of the circular support platform plate, and several support components annularly arranged on the circular support platform plate and the second nut seat and squeezed against the inner wall of the lower pipe.

[0007] Furthermore, the support assembly includes several first axial ears annularly arranged on the edge of the second nut seat, several second axial seats fixed to the bottom of the circular support platform plate, a walking wheel support rod axially connected to the second axial seats at the top, a first crank arm axially connected to the first axial ear at one end and to the middle part of the walking wheel support rod at the other end, and a walking wheel arranged at the bottom of the walking wheel support rod; the first axial ears correspond to the second axial seats one by one; the handwheel drives the second nut seat and opens the first crank arm; the walking wheel moves in contact with the inner wall of the lower pipe.

[0008] Furthermore, a plurality of lifting ears are provided in a ring shape on the top of the circular support platform plate; the lifting ears are connected to the lower part of the iron chain in a one-to-one correspondence.

[0009] Furthermore, the upper hanging assembly includes a hanging arc plate with an inverted hook-shaped cross-section, and a plurality of iron chain connecting holes are provided on the hanging arc plate; the iron chain connecting holes are connected to the upper part of the iron chain in a one-to-one correspondence.

[0010] Furthermore, three iron chains are provided.

[0011] Furthermore, the support components are provided in three groups.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) The utility model provides an upper hanging assembly, which is hung on the side of the upper pipeline close to the mountain, and uses three iron chains to connect the supporting platform to ensure its support reliability.

[0014] (2) The utility model sets three groups of support components at the lower part of the circular support platform plate. A walking wheel is set at the bottom of each support component. Under the driving action of the adjusting screw, the support component is unfolded or retracted so that the walking wheel can move in contact with the inner wall of the lower pipe and the upper pipe, thereby ensuring that the support platform can be reliably lowered and taken out. At the same time, when the operator is standing to use it, reliable support can also be started.

[0015] In summary, the utility model has the advantages of simple structure and reliable support, and has high practical value and promotion value in the field of water diversion pipeline construction technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1It is a schematic diagram of the layout of the lower pipeline and the upper pipeline of the utility model.

[0018] Figure 2 It is the installation diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the support platform of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the upper hanging assembly of the utility model.

[0021] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0022] 100, lower pipe; 200, upper pipe; 300, gap; 1, upper hanging assembly; 2, iron chain; 3, support platform; 11, hanging arc plate; 12, iron chain connecting hole; 31, circular support platform plate; 32, lifting ear; 33, rolling bearing seat; 34, hand wheel; 35, adjusting screw; 36, second nut seat; 361, first shaft ear; 371, first crank arm; 372, second shaft seat; 373, walking wheel support rod; 374, walking wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of this application clearer, the utility model is further described below in conjunction with the accompanying drawings and embodiments, and the implementation methods of this utility model include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0025] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0026] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0027] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0028] like Figures 1 to 4 As shown, this embodiment provides an inclined water diversion pipe inner wall welding platform, which is arranged in the upper pipe 200 and the lower pipe 100, and a slit 300 is arranged between the upper pipe 200 and the lower pipe 100. After the lower pipe 100 is fixedly installed, the upper pipe 200 is hoisted in place and the welding operation is performed. The external welding of the slit 300 can be performed by building a welding scaffold.

[0029] The inclined water diversion pipe inner wall welding platform of this embodiment includes an upper hanging assembly 1 hung on the top of the upper pipe 200, three iron chains 2 connected to the upper hanging assembly 1, and a support platform 3 arranged in the lower pipe 100 and connected to the iron chain 2. The support platform 3 is placed at the lower part of the gap 300. In this embodiment, the upper hanging assembly 1 is hung on the side close to the mountain to ensure that it will not slide along the top end surface of the upper pipe 200.

[0030] In this embodiment, the upper hanging assembly 1 includes a hanging arc plate 11 with an inverted hook-shaped cross section, and a plurality of iron chain connection holes 12 are provided on the hanging arc plate 11. The iron chain connection holes 12 are connected to the upper part of the iron chain 2 in a one-to-one correspondence. The hanging arc plate 11 is hung on the end surface of the upper pipe 200.

[0031] In addition, the support platform 3 of this embodiment includes a circular support platform plate 31 arranged in the lower pipe 100 and connected to the iron chain 2, a rolling bearing seat 33 arranged in the bottom center of the circular support platform plate 31, an adjusting screw 35 that passes through the circular support platform plate 31 and is sleeved and connected to the rolling bearing seat 33 at the upper part, a handwheel 34 arranged at the top of the adjusting screw 35, a second nut seat 36 that is connected to the adjusting screw 35 by a threaded sleeve and placed at the lower part of the circular support platform plate 31, and three support components that are annularly arranged on the circular support platform plate 31 and the second nut seat 36 and squeezed on the inner wall of the lower pipe 100. The support assembly includes a plurality of first axial lugs 361 annularly arranged on the edge of the second nut seat 36, a plurality of second axial seats 372 fixed on the bottom of the circular support platform plate 31, a travel wheel support rod 373 axially connected to the second axial seats 372 at the top, a first crank arm 371 axially connected to the first axial lug 361 at one end and to the middle of the travel wheel support rod 373 at the other end, and a travel wheel 374 arranged at the bottom of the travel wheel support rod 373. The first axial lug 361 corresponds to the second axial seat 372 one by one, and the second nut seat 36 is driven by the hand wheel 34, and the first crank arm 371 is opened, so that the travel wheel 374 is close to the inner wall of the lower pipe 100 and moves. In addition, three lifting ears 32 are annularly arranged on the top of the circular support platform plate 31, and the three lifting ears 32 are connected to the lower parts of the three iron chains 2 one by one.

[0032] When the circular support platform plate 31 moves from the inside of the upper pipe 200 and the lower pipe 100 to the lower part of the slit 300, the operator can perform welding operations in the pipe. The operator stands on the circular support platform plate 31. After the slit 300 is welded, polished, and anti-corrosion treated, the support platform 3 can be taken out and the walking wheels 374 can be used to fit the inner wall of the lower pipe 100 and the upper pipe 200. Similarly, several pipes are welded and installed from the lower part of the mountain upward in sequence, and finally the assembly of the entire inclined water diversion pipe is completed.

[0033] The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any changes that adopt the design principles of the present utility model and are made through non-creative labor on this basis should fall within the protection scope of the present utility model.

Claims

1. A welding platform for the inner wall of an inclined water diversion pipeline, arranged in an upper pipeline (200) and a lower pipeline (100), wherein a gap (300) is arranged between the upper pipeline (200) and the lower pipeline (100), characterized in that: The inclined water diversion pipeline inner wall welding platform comprises an upper hanging component (1) hung on the top of an upper pipeline (200), at least three iron chains (2) connected to the upper hanging component (1), and a supporting platform (3) arranged in a lower pipeline (100) and connected to the iron chain (2); the supporting platform (3) is placed at the lower part of the slit opening (300); The support platform (3) comprises a circular support platform plate (31) arranged in the lower pipe (100) and connected to the iron chain (2), a rolling bearing seat (33) arranged at the bottom center of the circular support platform plate (31), an adjusting screw (35) penetrating the circular support platform plate (31) and sleeve-connected to the rolling bearing seat (33) at the top, a hand wheel (34) arranged at the top of the adjusting screw (35), a second nut seat (36) sleeve-connected to the adjusting screw (35) by means of a thread and arranged at the bottom of the circular support platform plate (31), and a plurality of support components arranged in an annular manner on the circular support platform plate (31) and the second nut seat (36) and pressed against the inner wall of the lower pipe (100).

2. The inclined water diversion pipe inner wall welding platform according to claim 1, characterized in that: The support assembly comprises a plurality of first axial ears (361) annularly arranged on the edge of the second nut seat (36), a plurality of second axial seats (372) fixed on the bottom of the circular support platform plate (31), a travel wheel support rod (373) axially connected to the second axial seats (372) at the top, a first crank arm (371) axially connected to the first axial ear (361) at one end and axially connected to the middle of the travel wheel support rod (373) at the other end, and a travel wheel (374) arranged at the bottom of the travel wheel support rod (373); the first axial ears (361) correspond to the second axial seats (372) one by one; the hand wheel (34) drives the second nut seat (36) and opens the first crank arm (371); the travel wheel (374) moves in contact with the inner wall of the lower pipe (100).

3. The inclined water diversion pipeline inner wall welding platform according to claim 1 or 2, characterized in that: The top of the circular support platform plate (31) is provided with a plurality of lifting ears (32) in a ring shape; the lifting ears (32) are connected to the lower part of the iron chain (2) in a one-to-one correspondence.

4. The inclined water diversion pipe inner wall welding platform according to claim 1 or 2, characterized in that: The upper hanging assembly (1) comprises a hanging arc plate (11) with an inverted hook-shaped cross section, and a plurality of iron chain connecting holes (12) provided on the hanging arc plate (11); the iron chain connecting holes (12) are connected to the upper part of the iron chain (2) in a one-to-one correspondence.

5. The inclined water diversion pipeline inner wall welding platform according to claim 1, characterized in that: The iron chains (2) are provided in three pieces.

6. The inclined water diversion pipeline inner wall welding platform according to claim 1, characterized in that: The support components are provided in three groups.

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